JP2013233138A - Multilayer food manufacturing apparatus, multilayer product manufacturing apparatus and manufacturing method of multilayer product - Google Patents

Abstract

An object of the present invention is to provide a multi-layer food production apparatus that can produce a high-quality multi-layer food while using a viscous food material as an outer layer food and an inner layer food, and that has a simple device configuration.
A multi-layer food production apparatus includes an inner layer food pressure feeding device, an outer layer food pressure feeding device, and a discharge unit. The discharge nozzle 42 provided in the discharge unit 40 has a double structure in which an inner layer food discharge cylinder 56 connected to the inner layer food supply apparatus 22 is inserted inside an outer layer food discharge cylinder 58 connected to the outer layer food supply apparatus 32. belongs to.
[Selection] Figure 1

Description

  The present invention relates to a multi-layer food manufacturing apparatus, a multi-layer product manufacturing apparatus, and a multi-layer product manufacturing method used for manufacturing a multi-layer food having a multi-layer structure in which an inner layer food material is filled in a viscous outer layer food material such as a high-viscosity liquid material. About.

  Conventionally, as a device for manufacturing a multilayer food such as a bun or a confectionery wrapped with a shell made of another food, such as rice cake, a manufacturing apparatus for food as disclosed in the following Patent Documents 1 to 4, Alternatively, a manufacturing method is provided. The packaging product manufacturing apparatus disclosed in the following Patent Document 1 has an inner packaging material supply cylinder and an outer skin material supply cylinder set coaxially, and moves the outer skin material supply cylinder upward while moving the outer skin material. From the time when a constant amount of the skin material is supplied to before the end of the supply of the skin material, while continuing to discharge the skin material in the skin material supply tube, By discharging from the material supply cylinder, a multilayer food material in which the inner packaging material is wrapped with the outer skin material can be manufactured.

  Moreover, the manufacturing method of the packaged food currently disclosed by the following patent document 2 is the same as that by the packaging product manufacturing apparatus of patent document 1, expanding a space | interval of a double nozzle and a conveyance member, and using a double nozzle. The envelope food is produced by starting to extrude the outer shell material from the outer nozzle, and starting to extrude the inner packaging material from the inner nozzle after a certain period of time has elapsed.

JP 2011-115113 A JP-A-6-98684

  In the above-described prior art packaging product manufacturing apparatus and the like, it is possible to manufacture a multilayer food product in which inner layer food materials (inner packaging materials) such as rice cake are wrapped with relatively hard outer layer food materials (outer material) such as buns. it can. However, a multilayer food material cannot be manufactured using a food material that has viscosity as the outer layer food material and is softer than the inner layer food material (inner packaging material). That is, in the prior art packaging product manufacturing apparatus and the like, there is a problem that the foods that can be used as the outer layer food and the inner layer food are limited, and variations of the multilayer foods that can be manufactured are limited.

  Therefore, the present invention is capable of producing a high-quality multi-layer food while using a viscous food as the outer-layer food and the inner-layer food, and further having a simple device configuration, a multi-layer food production device, a multi-layer product production device, and a multi-layer product The purpose was to provide a manufacturing method.

  The present invention provided to solve the above-described problems is a multilayer food manufacturing apparatus used for manufacturing a multilayer food product in which a viscous inner layer food is wrapped with a viscous outer layer food, and the inner layer food can be pumped. Inner layer food supply unit including inner layer food material feeding device, outer layer food material supply unit including outer layer food material feeding device capable of pumping the outer layer food material, and inner layer food material pumped from the inner layer food material supply unit and outer layer food material supply unit And a discharge portion for discharging the outer layer food material, and the discharge portion inserts an inner layer food material discharge cylinder connected to the inner layer food material supply portion inside the outer layer food material discharge tube connected to the outer layer food material supply portion. The inner layer food pressure feeding device and the outer layer food pressure feeding device are provided with a male screw type rotor that rotates eccentrically under power, and a stator having an inner peripheral surface formed in a female screw type. It is characterized in that those having a uniaxial eccentric screw pump mechanism.

  In the multilayer food product production apparatus of the present invention, a multilayer food product can be produced using a food material having viscosity such as a high-viscosity liquid material as the inner layer food and the outer layer food. Therefore, according to the multi-layer food production apparatus of the present invention, it is possible to produce a multi-layer food in which the outer-layer food material is made of a viscous food that could not be produced by the prior art packaging product production apparatus or the like. Become.

  In the multilayer food manufacturing apparatus of the present invention, the inner layer food pressure feeding device and the outer layer food pressure feeding device have a uniaxial eccentric screw pump mechanism. Therefore, the pumping state of the inner layer food and the outer layer food can be accurately controlled, and the inner layer food and the outer layer food can be discharged from the discharge nozzle at an appropriate amount and timing. Therefore, according to the multilayer food production apparatus of the present invention, the production quality of the multilayer food can be further improved.

  In the present invention, the uniaxial eccentric screw pump mechanism that constitutes the inner layer food pressure feeding device and the outer layer food pressure feeding device adjusts the rotation direction of the rotor, so that the flow direction of the fluid (inner layer food material, outer layer food material) to be pumped is adjusted. Can be switched as appropriate. Therefore, when stopping the pumping of the inner layer food and the outer layer food, the discharge of the inner layer food and the outer layer food can be reliably stopped by rotating the rotor in the reverse direction. Therefore, according to the present invention, it is possible to provide a multilayer food manufacturing apparatus that can prevent deterioration of the quality of the multilayer food due to the inner layer food and the outer layer food being discharged more than expected, and has a simple apparatus configuration.

  The multi-layer food manufacturing apparatus of the present invention described above is capable of manufacturing multi-layer food by supplying, as the outer layer food, a food having a viscosity equal to or lower than the viscosity of the inner layer food. It is desirable.

  According to such a configuration, in addition to the multilayer food material in which the inner layer food material is wrapped with the outer layer food material having a higher viscosity than this, the outer layer food material is not the inner layer food material which could not be manufactured in the conventional packaging product manufacturing apparatus or the like. It becomes possible to produce a multi-layered food formed from a food having a lower viscosity than the above.

  In the multilayer food manufacturing apparatus of the present invention described above, the discharge unit includes a plurality of the discharge nozzles, an inner layer food flow path connecting the inner layer food pressure feeding device and the inner layer food discharge tube, the outer layer food pressure feeding device, and the An outer layer food channel connecting outer layer food discharge cylinders, the inner layer food channel and the outer layer food channel branched into a plurality of systems, and the discharge nozzle is connected to an end of each system It is desirable that it is characterized by this.

  According to such a configuration, it is possible to distribute the inner layer food and the outer layer food fed by the inner layer food feeding device and the outer layer food feeding device to the plurality of discharge nozzles. This makes it possible to further mass-produce multilayer foods.

  In addition, the multilayer food manufacturing apparatus of the present invention described above has a control unit that performs pressure control of the inner layer food and the outer layer food, and the control unit performs predetermined processing after the outer layer food starts to be pumped by the outer layer food pump. The inner layer food pumping device starts pumping the inner layer food at the timing when time passes, and the inner layer food pumping by the inner layer food pumping device is a predetermined time before the end of the outer layer food pumping by the outer layer food pumping device. It is desirable that it is characterized by terminating.

  In the multilayer food manufacturing apparatus of the present invention, the inner layer food pressure feeding device and the outer layer food pressure feeding device are each provided with a uniaxial eccentric screw pump mechanism. Therefore, as in the present invention, the multi-layer food is controlled by controlling the timing of the start and end of pumping of the inner layer food material by the inner layer food pumping device with reference to the time when the outer layer food material is pumped by the outer layer food pumping device and the time of the end of pumping. It becomes possible to make the manufacturing quality of the product highly accurate and stable.

  The multi-layer food manufacturing apparatus of the present invention described above has a control means for controlling the feeding of the inner layer food and the outer layer food, and when the inner layer food and the outer layer food are finished being pumped, the inner layer food feeding device and the outer layer food feeding device. It is desirable that the rotor of the uniaxial eccentric screw pump mechanism configured as described above is rotated in the direction opposite to that during pressure feeding.

  In the multilayer food manufacturing apparatus of the present invention, since the inner layer food pumping device and the outer layer food pumping device are provided with a uniaxial eccentric screw pump mechanism, the flow of the inner layer food and the outer layer food by switching the rotation direction of the rotor. The direction can be switched. In the present invention, when the pumping of the inner layer food and the outer layer food is stopped, the rotor is rotated in the direction opposite to that during the pumping, so that the discharge of the inner layer food and the outer layer food can be stopped reliably. Therefore, according to the present invention, it is possible to prevent the food having the viscosity corresponding to the inner layer food and the outer layer food from being unexpectedly excessively discharged, and to make the production quality of the multilayer food highly accurate and stable. Is possible.

  The multi-layer food manufacturing apparatus of the present invention described above has a storage tank provided below the discharge nozzle, and can drop the multi-layer food discharged from the discharge nozzle toward the storage tank. It may be.

  In such a configuration, a liquid or the like used for solidifying the outer layer food is stored in a storage tank, and the inner layer food and the outer layer food are discharged from the discharge nozzle toward the storage tank to produce a multilayer food. It becomes possible. Therefore, according to the multilayer food production apparatus of the present invention, it is possible to produce a multilayer food material that could not be produced by the prior art packaging product production apparatus or the like.

  In the multilayer food manufacturing apparatus of the present invention described above, the discharge nozzle can discharge the inner layer food in a ring shape inside the discharge region of the outer layer food while discharging the outer layer food in a ring.

  By adopting such a configuration, it becomes possible to produce a multilayer food product having a so-called donut-like appearance shape in which an inner layer food material is annularly contained inside an annular outer layer food material.

  In the multilayer food manufacturing apparatus of the present invention described above, the discharge nozzle has an inner diameter side outer layer food discharge cylinder inside the inner layer food discharge cylinder, and an outer layer food non-passage area inside the inner diameter side outer food discharge cylinder It is also possible to provide an annular flow path through which the outer layer food material can pass between the inner diameter side outer layer food material discharge cylinder and the central member.

  By setting it as this structure, it becomes possible to manufacture the cyclic | annular (doughnut-shaped) multilayer foodstuff as mentioned above. Further, an outer layer food material discharged from an annular flow path (also referred to as an “outer ring flow path”) formed between the outer layer food material discharge cylinder and the inner layer food material discharge cylinder, an inner diameter side outer layer food material discharge cylinder, and a central member By making the outer layer food material discharged from the annular flow path (also referred to as “inner ring flow path”) formed therebetween different, it becomes possible to produce a multilayer food rich in variations.

  Further, the present invention provided to solve the same problem is a multilayer product manufacturing apparatus used for manufacturing a multilayer product in which a viscous inner layer material is wrapped with a viscous outer layer material, wherein the inner layer material is used as the inner layer material. The inner layer material supply unit provided with the inner layer material pumping device capable of pumping, the outer layer material supply unit provided with the outer layer material pumping device capable of pumping the outer layer material, and pumped from the inner layer material supply unit and the outer layer material supply unit. And an inner layer material discharge cylinder connected to the inner layer material supply unit inside the outer layer material discharge cylinder connected to the outer layer material supply unit. The inner layer material feeding device and the outer layer material feeding device are provided with a male screw type rotor that rotates eccentrically by receiving power, and a stator in which an inner peripheral surface is formed into a female screw type. It is characterized in that those having a uniaxial eccentric screw pump mechanism having a.

  In the multilayer product manufacturing apparatus of the present invention, a multilayer product can be manufactured using materials having viscosity such as a high-viscosity liquid material as the inner layer material and the outer layer material. Therefore, according to the multilayer product manufacturing apparatus of the present invention, it is possible to manufacture a multilayer material in which the outer layer material is formed of a viscous material that could not be manufactured in the prior art.

  In the multilayer product manufacturing apparatus of the present invention, the inner layer material pumping device and the outer layer material pumping device are configured to include a uniaxial eccentric screw pump mechanism. Therefore, the pumping state of the inner layer material and the outer layer material can be accurately controlled, and the inner layer material and the outer layer material can be discharged from the discharge nozzle at an appropriate amount and timing. Therefore, according to the multilayer product manufacturing apparatus of the present invention, the manufacturing quality of the multilayer product can be further improved.

  In the present invention, the uniaxial eccentric screw pump mechanism that constitutes the inner layer material pumping device and the outer layer material pumping device adjusts the rotation direction of the rotor to adjust the flow direction of the fluid (inner layer material, outer layer material) to be pumped. Can be switched as appropriate. Therefore, when the pumping of the inner layer material and the outer layer material is stopped, the discharge of the inner layer material and the outer layer material can be reliably stopped by rotating the rotor in the reverse direction. Therefore, according to the present invention, it is possible to provide a multilayer product manufacturing apparatus that can prevent deterioration of the quality of the multilayer product due to the inner layer material and the outer layer material being ejected more than expected, and has a simple device configuration.

  In addition, in this invention and the following description, "multilayer product" is not limited to the multilayer foodstuff mentioned above, but is the concept which points out the whole what wrapped the inner layer material with the outer layer material. In the present invention, the “inner layer material” and the “outer layer material” are not limited to the “inner layer food material” and the “outer layer food material” constituting the multilayer food, and are concepts including all materials other than the food material.

  In the multilayer product manufacturing apparatus of the present invention described above, the discharge nozzle can discharge the inner layer material in a ring shape inside the discharge region of the outer layer material while discharging the outer layer material in a ring shape.

  By adopting such a configuration, it becomes possible to manufacture a multilayer product having a so-called donut-like appearance shape in which the inner layer material is included in an annular shape inside the outer layer material formed in an annular shape.

  In the present invention, the inner layer material and the outer layer material are discharged from a discharge nozzle in which the inner layer material discharge cylinder for discharging the inner layer material is inserted inside the outer layer material discharge cylinder for discharging the outer layer material. A method for manufacturing a multilayer product in which a viscous inner layer material is wrapped by an outer layer material having an outer layer material, the outer layer material pumping device connected to the outer layer material discharge cylinder, and the inner layer material pumping connected to the inner layer material discharge cylinder The apparatus includes a uniaxial eccentric screw pump mechanism having a male screw type rotor that rotates eccentrically upon receiving power, and a stator having an inner peripheral surface formed into a female screw type. The material is pumped and an outer layer material discharge start step for starting discharge of the outer layer material at the discharge nozzle, and after the predetermined time has elapsed after the outer layer material discharge start step, An inner layer material discharge start step for starting the pumping of the inner layer material by the layer material pumping device, an inner layer material discharge stop step for stopping the pumping of the inner layer material by the inner layer material pumping device after the inner layer material discharge start step, and the inner layer And an outer layer material discharge stopping step for stopping the outer layer material pumping by the outer layer material pumping device after the material discharge stopping step.

  The inner layer material pumping device and the outer layer material pumping device used in the method for manufacturing a multilayer product of the present invention are configured to include a uniaxial eccentric screw pump mechanism. Therefore, the pumping state of the inner layer material and the outer layer material can be accurately controlled, and the inner layer material and the outer layer material can be discharged from the discharge nozzle at an appropriate amount and timing. Thereby, it becomes possible to manufacture a multilayer product using materials having viscosity such as a high-viscosity liquid material as the inner layer material and the outer layer material. Therefore, according to the method for producing a multilayer product of the present invention, a multilayer product formed by a material having an outer layer material having a viscosity, which could not be produced by a prior art packaging product production apparatus or the like, is made to have a high quality. Can be manufactured.

  Here, as described above, when a multilayer product is manufactured using a material having viscosity such as a high-viscosity liquid material as the inner layer material and the outer layer material, even if the pumping of the inner layer material or the outer layer material is stopped, the surface tension The inner layer material and the outer layer material may remain in the vicinity of the end portion of the discharge nozzle due to the influence of the above. In order to prevent deterioration of the inner layer material and the outer layer material, it is preferable to reduce the possibility of being exposed to the outside air while adhering to the vicinity of the end of the discharge nozzle even during a short period of time during which discharge is stopped. When the material and the outer layer material are food materials, it is desirable to prevent exposure to the outside air. Also, when the next inner layer material or outer layer material is discharged in the state where the inner layer material or outer layer material is attached near the end of the discharge nozzle, the inner layer material or the amount attached to the vicinity of the end of the discharge nozzle The discharge amount of the outer layer material is increased, and the production quality of the multilayer product may vary.

  Furthermore, since the discharge nozzle used in the manufacturing method of the multilayer product of the present invention has a structure in which the inner layer material discharge tube and the outer layer material discharge tube are arranged substantially concentrically, the end of the inner layer material discharge tube and the outer layer material discharge tube There is a possibility that the inner layer material and the outer layer material adhering to the part may be mixed while the discharge is stopped. If the inner layer material and the outer layer material are mixed, not only the appearance may be deteriorated but also the characteristics may be deteriorated. Specifically, when the inner layer material and the outer layer material are foods, in addition to the appearance problems associated with mixing, there are various problems such as food hygiene problems or problems such as changes in taste and aroma. Problems arise and the commercial value of the multilayer product may be significantly impaired. In order to solve these problems, it is desirable to pull back the inner layer material discharge cylinder and the outer layer material discharge cylinder inward when stopping the discharge of the inner layer material and the outer layer material.

  In order to respond to such a demand, the multilayer product manufacturing method of the present invention is configured such that when the inner layer material pumping is stopped in the inner layer material discharge stopping step, the rotor of the inner layer material pumping device is used to discharge the inner layer material. It is desirable that the rotor of the outer layer material pumping device is operated in a direction opposite to that during the discharge of the outer layer material when the outer layer material is stopped in the outer layer material discharge stopping step. .

  In the present invention, the uniaxial eccentric screw pump mechanism that forms the inner layer material pumping device and the outer layer material pumping device appropriately adjusts the flow direction of the fluid (inner layer material, outer layer material) to be pumped by adjusting the rotation direction of the rotor. Switching is possible. Therefore, as in the manufacturing method of the present invention, when the pumping of the inner layer material and the outer layer material is stopped, the inner layer material attached to the end portions of the inner layer material discharge cylinder and the outer layer material discharge cylinder by rotating the rotor reversely and By pulling back the outer layer material, it is possible to reduce the possibility that the inner layer material and the outer layer material are exposed to the outside air while the discharge is stopped. Further, according to the present invention, it is possible to prevent deterioration in quality of the multilayer product due to the inner layer material and the outer layer material being discharged more than expected. Furthermore, it is possible to prevent the inner layer material and the outer layer material from being mixed at the end portions of the inner layer material discharge cylinder and the outer layer material discharge cylinder while the discharge is stopped, and the deterioration of the quality of the multilayer product due to the mixing of the inner layer material and the outer layer material. .

  In the multilayer product manufacturing method according to the present invention described above, after the outer layer material discharge start step, and before the inner layer material discharge start step, the rotor of the inner layer material pumping device is configured to discharge the inner layer material. May be operated in the reverse direction, and may include an outer layer material suction step for sucking the outer layer food material discharged from the outer layer material discharge tube into the inner layer material discharge tube.

  In the manufacturing method of the multilayer product of the present invention, before starting the discharge of the inner layer material in the inner layer food material discharge start step, by operating the rotor of the inner layer material pumping device in the opposite direction to the discharge in the outer layer material suction step, The outer layer food material discharged from the outer layer material discharge cylinder is sucked into the inner layer material discharge cylinder. Therefore, when the inner layer material discharge start step is started, first, the outer layer food material sucked into the end portion of the inner layer material discharge cylinder is discharged, and then the inner layer food material is discharged. Thereby, it becomes possible to contribute to improvement in yield by suppressing manufacturing defects such as leakage of the inner layer material from the bottom side of the multilayer product due to the influence of the weight of the inner layer material and the like.

  The present invention discharges the inner layer material and the outer layer material from a discharge nozzle in which the inner layer material discharge cylinder for discharging the inner layer material is inserted inside the outer layer material discharge cylinder for discharging the outer layer material. A method for manufacturing a multilayer product in which a viscous inner layer material is wrapped by an outer layer material having an outer layer material pumping device connected to the outer layer material discharge tube, and an inner layer material pumping device connected to the inner layer material discharge tube Is provided with a uniaxial eccentric screw pump mechanism having a male screw type rotor that rotates eccentrically upon receiving power, and a stator having an inner peripheral surface formed into a female screw type, and discharges the outer layer material at the discharge nozzle. In this state, the inner layer material is intermittently discharged.

  The inner layer material pumping device and the outer layer material pumping device used in the method for producing a multilayer product of the present invention are configured to include a uniaxial eccentric screw pump mechanism, and the inner layer material and the outer layer material are assumed to be viscous such as a high viscosity liquid material. Even if it has, it is possible to accurately control the pumping state. Therefore, the inner layer material and the outer layer material can be discharged from the discharge nozzle at an appropriate amount and timing. Therefore, it becomes possible to manufacture a multilayer product using materials having viscosity such as a high-viscosity liquid material as the inner layer material and the outer layer material.

  Further, by adopting a uniaxial eccentric screw pump mechanism as the inner layer material pumping device and the outer layer material pumping device as in the manufacturing method of the present invention, the pumping state of the inner layer material and the outer layer material is controlled with high accuracy. be able to. Therefore, as in the manufacturing method of the present invention, it is possible to manufacture a high-quality multilayer product by intermittently discharging the inner layer material after starting the discharge of the outer layer material.

  According to the manufacturing method of the present invention, it is possible to manufacture a multilayer product by intermittently discharging the inner layer material while the outer layer material is continuously discharged. Therefore, according to the manufacturing method of the present invention, the manufacturing speed of the multilayer product can be significantly increased as compared with the case where the discharge of the outer layer material is stopped every time one multilayer product is manufactured.

  Here, in addition to the multilayer product (multilayer food) in which the inner layer material (inner layer food material) such as candy is completely encased by the outer layer material (outer layer food material) such as a bun, the outer periphery material of the inner layer material as the core is the outer layer material. There is a desire to produce a multilayer product in a roll shape in which the end of the inner layer material is exposed to the outside (see FIGS. 10B and 10C).

  The present invention provided in order to meet such a demand provides an inner layer material and an outer layer from a discharge nozzle in which an inner layer material discharge cylinder for discharging the inner layer material is inserted inside an outer layer material discharge cylinder for discharging the outer layer material. A method of manufacturing a multilayer product in which a viscous inner layer material is wrapped with a viscous outer layer material by discharging the material, the outer layer material pumping device connected to the outer layer material discharge cylinder, and the inner layer material discharging The inner layer material pumping device connected to the cylinder is provided with a uniaxial eccentric screw pump mechanism having a male screw type rotor that rotates eccentrically under power and a stator having an inner peripheral surface formed in a female screw type. The discharge nozzle discharges the outer layer material and starts and stops the discharge of the inner layer material at the same time.

  According to the method for producing a multilayer product of the present invention, a multilayer product in the form of a roll in which the outer periphery of the inner layer material serving as the core is wound with the outer layer material and the end of the inner layer material is exposed to the outside as described above. It can be easily manufactured.

  Moreover, in the manufacturing method of the multilayer product of this invention, what was equipped with the uniaxial eccentric screw pump mechanism as an inner-layer material pumping apparatus and an outer-layer material pumping apparatus is employ | adopted. Therefore, even if the inner layer material and the outer layer material have a viscosity such as a high-viscosity liquid material, the pumping state can be accurately controlled. Thereby, even when a material having viscosity such as a high-viscosity liquid material is used as the inner layer material and the outer layer material, a high-quality multilayer product can be manufactured.

  In the multilayer product manufacturing method of the present invention, it is desirable that the discharge nozzle can discharge the inner layer material annularly inside the discharge region of the outer layer material while discharging the outer layer material annularly.

  According to the present invention, it is possible to manufacture a multilayer product having a so-called donut-like appearance shape in which an inner layer material is included in an annular shape inside an outer layer material formed in an annular shape.

  According to the present invention, a multi-layer food manufacturing apparatus, a multi-layer product manufacturing apparatus, and a multi-layer product that are capable of manufacturing a high-quality multi-layer food while using viscous ingredients as the outer layer food and the inner layer food, and that have a simple device configuration. The manufacturing method of can be provided.

(A) is a front view of the multilayer foodstuff manufacturing apparatus which concerns on one Embodiment of this invention, (b) is a side view. (A) is sectional drawing which shows the internal structure of an inner layer foodstuff feeding apparatus, (b) is sectional drawing which shows the uniaxial eccentric screw pump mechanism with which the outer layer foodstuff feeding apparatus is equipped. (A) is a skeleton figure which shows schematic structure of an outer-layer foodstuff flow path, (b) is a skeleton figure which shows schematic structure of an inner-layer foodstuff flow path. It is a figure which shows a discharge part, (a) is a front view, (b) is a top view, (c) is a bottom view, (d) is an enlarged view of a discharge nozzle, (e) is a side view, (f) is a side view AA sectional view, (g) is a BB sectional view, (h) is a CC sectional view, (i) is a DD sectional view, and (j) is an EE sectional view. It is a flowchart which shows operation | movement of the multilayer foodstuff manufacturing apparatus shown in FIG. It is a timing chart which shows operation | movement of the multilayer foodstuff manufacturing apparatus shown in FIG. It is a timing chart which shows the modification of operation | movement of the multilayer foodstuff manufacturing apparatus shown in FIG. It is explanatory drawing which shows the apparatus structure used in order to manufacture the artificial how much concerning one Example of this invention. (A) is a timing chart which shows the modification of the manufacturing method of the multilayer product of this invention, (b), (c) is a cross section which shows an example of the multilayer product manufactured according to the timing chart shown to (a) FIG. (A) is a timing chart which shows the modification of the manufacturing method of the multilayer product of this invention, (b) is a perspective view which shows an example of the multilayer product manufactured according to the timing chart shown to (a), (c) ) Is a cross-sectional view of the multilayer product shown in FIG. It is the schematic diagram which showed the discharge state of the outer-layer foodstuff and inner-layer foodstuff by the control flow shown in FIG. It is a schematic diagram for demonstrating the control flow which concerns on a modification. (A) is sectional drawing of the discharge nozzle which concerns on a modification, (b)-(d) is sectional drawing of the multilayer foodstuff which can be manufactured using the discharge nozzle shown to (a).

  Then, the multilayer foodstuff manufacturing apparatus 10 which concerns on one Embodiment of this invention is demonstrated in detail, referring drawings. The multi-layer food manufacturing apparatus 10 is used for manufacturing a multi-layer food (multi-layer product) in which a core food (hereinafter also referred to as an “inner layer food”) is wrapped with an outer food (hereinafter also referred to as an “outer layer food”). Device. The multilayer food production apparatus 10 can produce a multilayer food material using a viscous food material as the inner layer food material (inner layer material) and the outer layer food material (outer layer material).

  As shown in FIG. 1, the multilayer food manufacturing apparatus 10 includes an inner layer food supply unit 20, an outer layer food supply unit 30, a discharge unit 40, and a control unit 70. The inner layer food supply unit 20 is for supplying the discharge unit 40 with the inner layer food forming the multilayer food. The inner layer food supply unit 20 includes an inner layer food feeding device 22 that can pump the inner layer food, an inner layer food storage tank 24, and a stirring device 26.

  The inner layer food pressure feeding device 22 is constituted by a rotary positive displacement pump. As shown in FIG. 2 (a), the inner layer food pressure feeding device 22 is a so-called uniaxial eccentric screw pump including a uniaxial eccentric screw pump mechanism 100. The inner layer food pressure feeding device 22 is configured to house the rotor 102, the stator 104, the power transmission mechanism 108, and the like inside the casing 106. The casing 106 is a cylindrical member made of metal, and a first opening 110 is provided on one end side in the longitudinal direction. A second opening 112 is provided on the outer peripheral portion of the casing 106. The second opening 112 communicates with the internal space of the casing 106 at an intermediate portion 114 located at the intermediate portion in the longitudinal direction of the casing 106.

  The first opening 110 and the second opening 112 are portions that function as a suction port and a discharge port of the uniaxial eccentric screw pump mechanism 100, respectively. The inner layer food pressure feeding device 22 can function the first opening 110 as a discharge port and the second opening 112 as a suction port by rotating the rotor 102 in the forward direction. Further, by rotating the rotor 102 in the reverse direction, the first opening 110 can function as a suction port and the second opening 112 can function as a discharge port.

  The stator 104 is a member having a substantially cylindrical outer shape formed of an elastic body such as rubber or a resin. The inner peripheral wall 116 of the stator 104 has a single-stage or multi-stage female thread shape with n strips. In the present embodiment, the stator 104 has a multistage female screw shape with two threads. Further, the through-hole 118 of the stator 104 is formed so that its cross-sectional shape (opening shape) is substantially oval when viewed in cross section at any position in the longitudinal direction of the stator 104.

  The rotor 102 is a metal shaft, and has a single-stage or multi-stage male screw shape with n-1 strips. In the present embodiment, the rotor 102 has a male screw shape that is eccentric with a single thread. The rotor 102 is formed so that its cross-sectional shape is substantially a true circle when viewed in cross section at any position in the longitudinal direction. The rotor 102 is inserted into the through hole 118 formed in the stator 104 described above, and can be freely rotated eccentrically inside the through hole 118.

  When the rotor 102 is inserted into the stator 104, the outer peripheral wall 120 of the rotor 102 and the inner peripheral wall 116 of the stator 104 are in close contact with each other at the tangent line therebetween, and the inner peripheral wall 116 of the stator 104 and the outer peripheral wall 120 of the rotor 102 are A fluid conveyance path 122 (cavity) is formed between the two. The fluid conveyance path 122 extends in a spiral shape in the longitudinal direction of the stator 104 and the rotor 102.

  When the rotor 102 is rotated in the through hole 118 of the stator 104, the fluid conveyance path 122 advances in the longitudinal direction of the stator 104 while rotating in the stator 104. Therefore, when the rotor 102 is rotated, fluid is sucked into the fluid conveyance path 122 from one end side of the stator 104, and is transferred toward the other end side of the stator 104 while being confined in the fluid conveyance path 122. It is possible to discharge at the other end side of the stator 104. The uniaxial eccentric screw pump mechanism 100 of the present embodiment is used by rotating the rotor 102 in the forward direction, and pumps the food constituent material (fluid) sucked from the second opening 112, from the first opening 110. It is possible to discharge.

  The power transmission mechanism 108 is for transmitting power from the drive unit 124 to the rotor 102 described above. The power transmission mechanism 108 includes a power transmission unit 126 and an eccentric rotation unit 128. The power transmission unit 126 is provided on one end side of the casing 106 in the longitudinal direction. Further, the eccentric rotating part 128 is provided in the intermediate part 114. The eccentric rotating part 128 is a part that connects the power transmission part 126 and the rotor 102 so that power can be transmitted. The eccentric rotating part 128 includes a connecting shaft 148 constituted by a conventionally known coupling rod, screw rod, or the like. Therefore, the eccentric rotating unit 128 can transmit the rotational power generated by operating the driving machine 124 to the rotor 102 and rotate the rotor 102 eccentrically.

  As shown in FIG.1 (b), the inner layer foodstuff pressure feeding apparatus 22 mentioned above is installed substantially horizontal. A discharge portion 40, which will be described in detail later, is connected to the first opening 110 used for discharging the inner layer food by piping. The second opening 112 is connected to the inner layer food storage tank 24 installed above. The inner layer food storage tank 24 is a funnel-shaped container (hopper) for storing the inner layer food, and supplies the inner layer food stored in the inner layer from the discharge port 24a provided at the lower part toward the second opening 112. be able to. Moreover, the stirring blade of the stirring apparatus 26 is inserted into the inner layer food storage tank 24 from above. Therefore, by operating the stirring device 26, it is possible to prevent sedimentation of the inner layer food stored in the inner layer food storage tank 24, and to obtain a substantially uniform composition throughout the tank.

  The outer layer food supply unit 30 is for supplying the outer layer food forming the multilayer food to the discharge unit 40. As shown in FIGS. 1A and 1B, the outer layer food supply unit 30 includes an outer layer food feeding device 32 capable of pumping the outer layer food and an outer layer food storage tank 34. The outer layer food pressure feeding device 32 is constituted by a rotary positive displacement pump. The outer layer food pressure feeding device 32 includes a pump mechanism portion 35 including a uniaxial eccentric screw pump mechanism 200, a drive portion 36, and a connecting portion 38.

  As shown in FIG. 2B, the pump mechanism unit 35 is configured to accommodate a rotor 202 and a stator 204 inside a casing 201. The main configurations of the uniaxial eccentric screw pump mechanism 200 and the rotor 202 and stator 204 constituting the uniaxial eccentric screw pump mechanism 200 are the same as those of the uniaxial eccentric screw pump mechanism 100, rotor 102, and stator 104 described above.

  That is, the uniaxial eccentric screw pump mechanism 200 is formed by inserting the rotor 202 through the stator 204. The rotor 202 is constituted by a metal shaft body having a single-stage or multi-stage female screw shape with n-1 strips (one strip in the present embodiment). The stator 204 is a cylindrical body formed of an elastic body, resin, or the like, and has a single-stage or multi-stage female screw shape with n lines (two lines in this embodiment) inside. The rotor 202 is inserted through a through hole 206 formed in the stator 204 and can be freely eccentrically rotated inside the through hole 206. Further, by inserting the rotor 202 into the stator 204, a spiral fluid conveyance path 208 (cavity) is formed. The uniaxial eccentric screw pump mechanism 200 can advance the fluid conveyance path 208 in the longitudinal direction of the stator 204 by rotating the rotor 202 inside the stator 204.

  Further, the rotor 202 is connected to the rod 212 via a connecting portion 210 constituted by a conventionally known coupling rod, screw rod, or the like. As shown in FIG. 1, the rod 212 is connected to the drive shaft of the drive machine 214. Therefore, the rotor 202 can be eccentrically rotated by operating the drive unit 214. A stirring blade 216 is attached to an intermediate portion of the rod 212.

  The pump mechanism 35 described above is disposed directly below the outer layer food storage tank 34. The outer layer food storage tank 34 is a funnel-shaped container (hopper) for storing outer layer food, and a pump mechanism 35 is connected to a discharge port 34a provided in the lower part. Thereby, the outer layer food stored in the outer layer food storage tank 34 can be sequentially supplied toward the pump mechanism unit 35. The rod 212 is installed so as to penetrate the outer layer food storage tank 34 in the vertical direction, and the stirring blade 216 attached to the intermediate portion is located in the outer layer food storage tank 34. Therefore, when the drive unit 214 is operated to rotate the rotor 202, the stirring blade 216 rotates in the outer layer food storage tank 34, and precipitation of the stored outer layer food can be prevented.

  The inner layer food supply unit 20 and the outer layer food supply unit 30 described above are connected to the discharge unit 40. The discharge unit 40 is for forming a multilayer food by discharging the inner layer food and the outer layer food fed from the inner layer food supply unit 20 and the outer layer food supply unit 30. As shown in FIG. 4, the discharge unit 40 includes a number of discharge nozzles 42 and includes a discharge unit 50 that incorporates an inner layer food channel 44 and an outer layer food channel 46 as shown in FIG. 3.

  As shown in FIG. 4D, the discharge nozzle 42 is configured so that the inner layer food discharge cylinder 52 for discharging the inner layer food is substantially concentric inside the outer layer food discharge cylinder 54 for discharging the outer layer food. It has a double pipe structure.

  The inner-layer food channel 44 and the outer-layer food channel 46 are generally branched as shown in FIG. That is, the inner-layer food channel 44 and the outer-layer food channel 46 are branched stepwise from the upstream side to the downstream side as shown in a so-called tournament table. The inner layer food channel 44 and the outer layer food channel 46 are branched in multiple lines toward the end portions, and the inner layer food discharge cylinder 52 and the outer layer food discharge cylinder 54 of the discharge nozzle 42 are connected to the respective end portions. Yes.

  The discharge unit 40 may be configured such that the inner layer food channel 44 and the outer layer food channel 46 are formed by piping, and the discharge nozzle 42 is connected to the end thereof, but in this embodiment, as shown in FIG. A structure in which an inner layer food channel 44 and an outer layer food channel 46 are formed by combining a plurality of (in this embodiment, five) plates 60 having holes or grooves formed therein, and the discharge nozzle 42 is connected to these. It is said that. Specifically, the discharge unit 40 is formed by overlapping five plates 60 including the first plate 60a to the fifth plate 60e from the upper side to the lower side. In the first plate 60a to the fifth plate 60e, holes or grooves constituting the inner layer food channel 44 and the outer layer food channel 46 are formed.

  More specifically, as shown in FIG. 3, the inner layer food material flow path 44 is classified into first component 44a to fifth component 44e, and grooves or holes corresponding to the components 44a to 44e are formed in the first plate 60a. The inner layer food material flow path 44 is formed by forming the fifth plate 60e and combining them. Further, the outer layer food channel 46 is classified into the first component 46a to the fifth component 46e, and grooves or holes corresponding to the components 46a to 46e are formed in the first plate 60a to the fifth plate 60e and combined. Thereby, the outer layer food material flow path 46 is formed. Further, the first plate 60 a is provided with an inner layer connection portion 56 connected to the inner layer food supply unit 20 and an outer layer connection portion 58 connected to the outer layer food supply unit 30.

  The configuration of each plate 60 will be described in detail. As shown in FIG. 4B, an outer layer connection portion 58 is formed at a substantially central portion on the top surface side of the first plate 60a. As shown in FIG. 4 (f), the first plate 60 a is formed with a vertical hole 46 a 1 forming the first component 46 a of the outer layer food material channel 46 so as to communicate with the outer layer connection portion 58. Moreover, the lateral groove 46a2 which makes the 1st structure part 46a is formed in the back surface side of the 1st plate 60a. The lateral groove 46a2 communicates with the vertical hole 46a1, and is formed so as to extend symmetrically in the longitudinal direction of the first plate 60a with the communication position with the vertical hole 46a1 as a boundary.

  Moreover, as shown in FIG.4 (b), the four inner layer connection parts 56 are provided in the top | upper surface side of the 1st plate 60a, and the inner layer foodstuff flow path 44 is connected to each. As shown in FIG. 4 (f), in a state where the first plate 60a is viewed in plan, the center line L1 extending in the length direction (longitudinal direction) of the first plate 60a and the center extending in the width direction (short direction). When the line L2 is assumed and four regions partitioned by the center lines L1 and L2 are assumed, the inner layer connection portion 56 and the inner layer food channel 44 are provided for each region. That is, the first component 44 a that forms the inner layer food channel 44 is provided in each of the four regions. The second plate 60b to the fifth plate 60e arranged below the first plate 60a also have the second component 44b to the second component 44b of the inner layer food flow channel 44 at positions corresponding to the four regions described above. A hole or groove corresponding to the fifth component 44e is formed.

  In the first plate 60a, a vertical hole 44a1 and a horizontal groove 44a2 are formed as holes and grooves forming the first component 44a of the inner layer food flow path 44. The vertical hole 44a1 is a hole that communicates with the inner layer connecting portion 56 and extends from the top surface side to the bottom surface side of the first plate 60a. The lateral groove 44a2 is a groove extending in the longitudinal direction of the first plate 60a on the back surface side of the first plate 60a. The vertical groove 44a1 communicates with a substantially central portion of the horizontal groove 44a2.

  As shown in FIG. 4 (g), the second plate 60b has two vertical holes 46b1 forming the second component 46b of the outer layer food channel 46, and has a symmetrical positional relationship in the longitudinal direction of the second plate 60b. It is formed to become. The vertical hole 46b1 is provided at a position corresponding to both ends of the lateral groove 46a2 formed on the first plate 60a side in a state where the first plate 60a and the second plate 60b are overlapped. Therefore, the 1st component part 46a and the 2nd component part 46b of the outer layer foodstuff flow path 46 can be connected by overlapping the 1st plate 60a and the 2nd plate 60b.

  In addition, eight vertical holes 44b1 forming the second component 44b of the inner layer food channel 44 are formed in the second plate 60b. The vertical holes 44b1 are provided at positions corresponding to both end portions of the lateral grooves 44a2 forming the respective inner layer food flow paths 44 formed in the first plate 60a. Therefore, the 1st component part 44a and the 2nd component part 44b of the inner-layer foodstuff flow path 44 can be connected by overlapping the 1st plate 60a and the 2nd plate 60b.

  As shown in FIG. 4 (h), the third plate 60c is provided with two sets of vertical holes 46c1 and horizontal grooves 46c2 forming the third component 46c of the outer layer food material channel 46. The vertical hole 46c1 and the horizontal groove 46c2 are provided so as to have a symmetrical positional relationship in the longitudinal direction of the third plate 60c. The vertical hole 46c1 is provided at a position communicating with the vertical hole 46b1 formed on the second plate 60b side in a state where the second plate 60b and the third plate 60c are overlapped.

  The third plate 60c is formed with eight sets of vertical holes 44c1 and horizontal grooves 44c2 forming the third component 44c of the inner layer food material channel 44. The vertical holes 44c1 are provided at positions corresponding to the eight vertical holes 44b1 formed in the second plate 60b. Therefore, the vertical holes 44b1 and 44c1 formed in the second plate 60b and the third plate 60c communicate with each other by overlapping the second plate 60b and the third plate 60c. The lateral groove 44c2 is formed on the bottom surface side of the third plate 60c so as to extend in the longitudinal direction of the third plate 60c. The vertical hole 44c1 communicates with the horizontal groove 44c2 at a substantially central portion of the horizontal groove 44c2.

  As shown in FIG. 4I, the fourth plate 60d is formed with four vertical holes 46d1 forming the fourth component 46d of the outer layer food material channel 46. The vertical holes 46d1 are provided at positions corresponding to both ends of the lateral groove 46c2 formed on the third plate 60c side in a state where the third plate 60c and the fourth plate 60d are overlapped. Therefore, by overlapping the third plate 60c and the fourth plate 60d, it is possible to form a flow path that branches each lateral groove 46c2 into two systems. Therefore, the outer layer food material flow path 46 is branched into four systems from the first plate 60a to the fourth plate 60d.

  The fourth plate 60d is formed with 16 vertical holes 44d1 forming the fourth component 44d of the inner layer food flow path 44. The vertical holes 44d1 are provided at positions corresponding to both ends of the eight horizontal grooves 44c2 formed in the third plate 60c. Therefore, by superimposing the third plate 60c and the fourth plate 60d, it is possible to form a flow path that branches each lateral groove 44c into two systems. Therefore, the inner layer food material flow path 44 is branched into 16 systems from the first plate 60a to the fourth plate 60d.

  As shown in FIG. 4 (j), four H-shaped grooves 46e1 forming the fifth component 46e of the outer layer food material channel 46 are formed in the fifth plate 60e. The H-shaped groove 46e1 is a substantially H-shaped groove in plan view. In a state where the fourth plate 60d and the fifth plate 60e are overlapped, the four vertical holes 46d1 formed in the fourth plate 60d are in communication with the substantially central portion of each H-shaped groove 46e1. Further, vertical holes 46e2 communicating with the back side of the fifth plate 60e are provided at the end portions (four corners) of each H-shaped groove 46e. Therefore, by superposing the fourth plate 60d and the fifth plate 60e, it is possible to form flow paths that branch the outer layer food introduced through the vertical holes 46d1 into four systems. Therefore, the outer layer food material can be branched into 16 systems as the entire fifth plate 60e.

  On the back surface side of the fifth plate 60e, the discharge nozzle 42 is attached at a position corresponding to each vertical hole 46e2. Therefore, the outer layer food material introduced through the outer layer connection portion 58 is divided into 16 systems by the outer layer food material channel 46 formed in the first plate 60a to the fifth plate 60e, and the 16 discharge nozzles 42 are used. Can be discharged.

  The sixteen vertical holes 46e2 provided in the fifth plate 60e correspond to the pipe 44e1 forming the fifth component 44e of the inner layer food flow path 44, and the inner layer food discharge cylinder 52 forming the discharge nozzle 42. Is inserted. In addition, each inner layer food material discharge cylinder 52 is in communication with the vertical hole 44d1 formed on the fourth plate 60d side by overlapping the fourth plate 60d and the fifth plate 60e. Therefore, the inner layer food material introduced through the inner layer connection portion 56 is divided into 16 systems by the inner layer food material flow paths 44 formed in the first plate 60a to the fifth plate 60e, and the 16 discharge nozzles 42 are used. Can be discharged.

  As shown by a two-dot chain line in FIG. 1, a base 80 such as a belt conveyor or a work table is installed below the discharge unit 40 described above. Thereby, a multilayer foodstuff can be shape | molded, discharging an outer layer foodstuff and an inner layer foodstuff on a belt conveyor etc. from the discharge part 40. FIG.

  The control means 70 mainly performs operation control of the inner layer food material feeding device 22 and the outer layer food material feeding device 32 described above, and performs pressure control of the inner layer food material and the outer layer food material. Basic operation control of the inner layer food pressure feeding device 22 and the outer layer food pressure feeding device 32 by the control means 70 is as shown in the flowchart shown in FIG. 5 and the timing chart shown in FIG. Specifically, when the operation signal is turned on in step 1, the outer layer food material is started to be pumped by the outer layer food pumping device 32 in step 2. Thereby, in each discharge nozzle 42 provided in the discharge part 40, it discharges downward from the clearance gap formed between the inner layer food material discharge cylinder 52 and the outer layer food material discharge cylinder 54 (outer layer material discharge start process). .

  When it is confirmed in step 3 that the predetermined time t3 has elapsed after the discharge of the outer layer food material is started in step 2, the control flow is advanced to step 4 (inner layer material discharge start process). Here, the predetermined time t3 is set in consideration of various conditions such as the viscosity of the outer layer food and the inner layer food, the discharge speed, the shape of the discharge nozzle 42, the thickness of the outer layer food forming the multilayer food, and the predetermined time t3 depending on the conditions. It is good also as starting discharge of an outer-layer foodstuff and an inner-layer foodstuff simultaneously (t3 = 0) without providing.

  In step 4, the operation of discharging the inner layer food material downward from the inner layer food material discharge cylinder 52 of each discharge nozzle 42 is started while continuing the discharge of the outer layer food material started in step 2 described above. That is, in addition to the discharge of the outer layer food material, the discharge of the inner layer food material is also started from the timing delayed by the predetermined time t3 from the start of the discharge of the outer layer food material in Step 2.

  After it is confirmed in step 4 that the predetermined time t4 has elapsed after starting the ejection of the inner layer food material, the control flow proceeds to step 6. In step 6, the rotation direction of the rotor 102 of the inner layer food pressure feeding device 22 is switched to a direction opposite to that during the discharge of the inner layer food material for a predetermined time t5. When the predetermined time t5 elapses, the control flow proceeds to step 7 and the rotation of the rotor 102 is stopped (steps 6 to 7: inner layer material discharge stopping step).

  On the other hand, the outer layer food pressure feeding device 32 continues the discharge of the outer layer food material until it is confirmed that the predetermined time t1 has elapsed after the start of the discharge of the outer layer food material in Step 8. When it is confirmed in step 8 that the predetermined time t1 has elapsed, the control flow proceeds to step 9. In step 9, the rotation direction of the rotor 202 provided in the outer layer food pressure feeding device 32 is switched to a direction opposite to that during discharge of the outer layer food material for a predetermined time t <b> 2. When the predetermined time t2 has elapsed, the control flow is advanced to step 10, the rotation of the rotor 202 is stopped, and a series of control flow is completed (steps 9 to 10: outer layer material discharge stopping step).

  In the multilayer food manufacturing apparatus 10 of the present embodiment described above, multilayer food can be manufactured using foods having viscosity such as a high-viscosity liquid material as the inner layer food and the outer layer food. Therefore, according to the multilayer food manufacturing apparatus 10 of this embodiment, it is possible to manufacture a multilayer food material in which the outer layer food material is formed of a viscous food material. In particular, according to the multi-layer food manufacturing apparatus 10, a food material having a viscosity equal to or lower than the viscosity of the inner layer food material can be used as the outer layer food material. Therefore, according to the multilayer food manufacturing apparatus 10, the outer layer food material that cannot be manufactured by the prior art packaged product manufacturing apparatus or the like is manufactured with a lower viscosity food material than the inner layer food material. It becomes possible.

  Moreover, in the multilayer food manufacturing apparatus 10, what was equipped with the uniaxial eccentric screw pump mechanism 100,200 as the inner layer foodstuff feeding apparatus 22 and the outer layer foodstuff feeding apparatus 32 is employ | adopted. Therefore, the pressure-feeding state of the inner layer food material and the outer layer food material can be accurately controlled, and the inner layer food material and the outer layer food material can be discharged at an appropriate amount and timing in manufacturing the multilayer food. Therefore, according to the multilayer food manufacturing apparatus 10, the manufacturing quality of the multilayer food can be further improved.

  In addition, the uniaxial eccentric screw pump mechanisms 100 and 200 constituting the inner layer food pressure feeding device 22 and the outer layer food pressure feeding device 32 both adjust the rotation direction of the rotors 102 and 202 to change the flow direction of the inner layer food material and the outer layer food material. It is possible to switch appropriately. Therefore, even if low-viscosity foods are used as the inner layer food and the outer layer food, the rotors 102 and 202 are reversely rotated when pumping of the respective foods is stopped, and the liquid dripping unexpectedly and accompanying the liquid dripping It is possible to prevent deterioration of the quality of the multilayer food. In addition, the uniaxial eccentric screw pump mechanisms 100 and 200 constituting the inner layer food pressure feeding device 22 and the outer layer food pressure feeding device 32 have a very simple device configuration. This makes it possible to reduce the manufacturing cost of the multilayer food manufacturing apparatus 10 and improve the maintenance characteristics.

  The multilayer food manufacturing apparatus 10 includes a plurality of discharge nozzles 42 (16 in this embodiment), and the inner layer food channel 44 and the outer layer food channel 46 are branched into a plurality of systems. Therefore, the inner layer food material and the outer layer food material fed by the inner layer food material feeding device 22 and the outer layer food material feeding device 32 are distributed to the plurality of discharge nozzles 42 substantially evenly via the inner layer food channel 44 and the outer layer food channel 46. It becomes possible. Therefore, according to the multilayer food manufacturing apparatus 10, multilayer foods of the same quality can be mass-produced.

  In the multilayer food manufacturing apparatus 10, since the inner layer food pumping device 22 and the outer layer food pumping device 32 include the uniaxial eccentric screw pump mechanisms 100 and 200, the discharge start and end of the inner layer food and the outer layer food are performed. Can be controlled accurately. Therefore, as described above, after the start of feeding of the outer layer food material by the outer layer food material feeding device 32, the inner layer food material feeding device 22 starts feeding the inner layer food material at a timing after a predetermined time t3, and the outer layer food material feeding device 32 feeds the outer layer food material. It is possible to stably produce a high quality multi-layer food by ending the feeding of the inner layer food by the inner layer food feeding device 22 at a timing that is a predetermined time before the time t1 from the start to the end of the feeding. It becomes.

  In addition, the timing chart which concerns on FIG. 6 mentioned above only showed an example of operation | movement of the multilayer foodstuff manufacturing apparatus 10, and can be changed suitably. In addition, the multilayer food manufacturing apparatus 10 may have a configuration in which a lifting mechanism is provided in the discharge unit 40, and the operation of the lifting mechanism and the discharge of the outer layer food and the inner layer food may be controlled in conjunction with each other. That is, for example, as shown in the timing charts of FIGS. 7A to 7C, the discharge timing of the outer layer food and the inner layer food is determined in consideration of the characteristics such as the viscosity of the outer layer food or the inner layer food used for forming the multilayer food. The ejection unit 40 can be moved up and down at an appropriate timing as a reference.

  Specifically, in the example shown in FIG. 7A, prior to the discharge of the outer layer food and the inner layer food, the discharge unit 40 rises from the standby position, moves to a predetermined position, and then drops to the discharge start position. . When the discharge unit 40 reaches the discharge start position, the outer layer food material feeding device 32 starts to discharge the outer layer food material. After a predetermined time has elapsed, the inner layer food material feeding device 22 starts to discharge the inner layer food material, and the discharge unit 40 starts to move upward. When it is time to complete the ejection of the inner layer food material, the rotor 102 of the inner layer food material feeding device 22 is reversely rotated for a predetermined time. Thereby, the discharge of the inner layer food material is completed. Thereafter, when the timing for completing the discharge of the outer layer food material is reached, the rotor 202 of the outer layer food material pressure feeding device 22 is reversely rotated for a predetermined time. Thereby, the discharge of the outer layer food material is completed. After a while after the outer layer foodstuff has been pumped, the discharge unit 40 stops the upward movement, and returns to the standby position after a predetermined standby time.

  The example shown in FIG. 7B is substantially the same as the operation according to FIG. 7A described above, but after the outer layer food material is discharged by the outer layer food material pressure device 32, the rotor 202 of the outer layer food material pressure device 22 is finished. The difference is that the reverse rotation timing is delayed until a time point after the completion of the upward movement of the discharge unit 40. 7C is generally the same as the operation according to FIG. 7A described above, but after the outer layer food material is discharged by the outer layer food material pressure device 32, the rotor 202 of the outer layer food material pressure device 22 is finished. The timing of ending the reverse rotation is different in that it is delayed to a timing slightly before the timing at which the upward movement of the discharge unit 40 is completed. The example shown in FIG. 7C is also different from the operation according to FIG. 7A in that the timing of starting the discharge of the inner layer food is set before the timing of starting the upward movement of the discharge unit 40.

  The multi-layer food manufacturing apparatus 10 described above is for manufacturing two layers of food, an inner layer and an outer layer, but the present invention is not limited to this, and it is possible to manufacture a multi-layer food. It is. Specifically, the discharge nozzle 42 may have a multilayer structure so that different foods can be discharged from each layer of the discharge nozzle 42. In other words, either or both of the inner-layer food discharge cylinder 52 is made into a multiple cylinder in order to achieve a multi-layered inner-layer food and the outer-layer food discharge cylinder 54 is made into a multi-cylinder in order to have a multilayered outer-layer food. As a result, it is possible to produce a multilayered food material that is further multilayered. In addition, when multiplexing the inner layer food material discharge cylinder 52 and the outer layer food material discharge cylinder 54, in addition to the inner layer food material channel 44 and the outer layer food material channel 46, each of the inner layer food material supply unit 20 and the outer layer food material supply unit 30 is also provided. By providing each food separately, it is possible to smoothly supply the necessary food to each layer of the multilayered inner layer food discharge cylinder 52 and outer layer food discharge cylinder 54.

  The above-described method for producing a multilayer food product (multi-layer product) is merely one embodiment of the present invention, and may be produced by another production method using the multilayer food production device 10 (multi-layer product production device). Specifically, as shown in the timing chart of FIG. 9A, after starting the pumping by the outer layer food pumping device 32, the outer layer food (outer layer material) is discharged from the discharge nozzle 42 without stopping. In parallel with this, the inner layer food material feeding device 22 is operated and stopped at every predetermined timing, and the inner layer food material (inner layer material) is discharged from the discharge nozzle 42. By doing in this way, it becomes possible to manufacture a multilayer product by intermittently discharging the inner layer material in a state where the outer layer food material is continuously discharged. Therefore, according to the method for producing a multilayer food according to the timing chart shown in FIG. 9A, the production speed of the multilayer food is significantly higher than when the discharge of the outer layer food is stopped each time one multilayer food is produced. It is possible to increase the speed.

  In addition, in this way, when the multilayer food manufacturing method is employed in which the outer layer food is discharged continuously while the outer layer food is discharged continuously, the outer layer food is dropped in a bowl shape or a spherical shape. 9 (b), it is possible to produce a multi-layer food having a spherical shape in which the inner layer food is included in the outer layer food or a bowl-shaped shape as shown in FIG. 9 (b). In the case where the viscosity of the outer layer food is higher than that described above, the form in which the inner layer food is included at predetermined intervals in the continuously formed outer layer food as shown in FIG. 9C. Multi-layer food can be manufactured. When a multilayer food is manufactured in the form as shown in FIG. 9C, the outer layer food may be cut and decomposed at an intermediate portion where the inner layer food is not included.

  As a modification of the method for producing a multilayer food (multilayer product) using the multilayer food production apparatus 10 (multilayer product production apparatus), for example, a production method according to the timing chart shown in FIG. Specifically, as shown in FIG. 10A, the discharge of the outer layer food material (outer layer material) and the discharge start and discharge stop of the inner layer food material (inner layer material) in the discharge nozzle 42 may be performed simultaneously. According to such a manufacturing method, as shown in FIGS. 10B and 10C, a roll-shaped form in which the outer periphery of the inner-layer food serving as a core is wound by the outer-layer food and the end of the inner-layer food is exposed. Can be easily produced.

  Moreover, the manufacturing method of the multilayer product (multilayer food) of the above-described embodiment includes an outer layer material discharge start process (step 2) and an inner layer material discharge start process as shown in the control flow shown in FIG. 5 and the schematic diagram in FIG. (Step 4) An example in which each process of the inner layer material discharge stop process (Step 6 to Step 7) and the outer layer material discharge stop process (Steps 9 to 10) is sequentially performed is shown. What added the process further may be used. Specifically, as schematically shown in FIG. 12, after the outer layer material discharge start process and before the inner layer material discharge start process, the rotor 102 of the inner layer material pumping device 22 is set to discharge the inner layer material. Can be provided with an outer layer material suction step that operates in the reverse direction by a predetermined amount.

  By providing the outer layer material suction step described above, after the outer layer material discharge start step, the outer layer material discharged from the outer layer material discharge tube 54 of the discharge nozzle 42 and adhering to the tip portion is inside the inner layer material discharge tube 52. Sucked into. Therefore, before the inner layer material discharge start step, some of the outer layer material is filled in the tip portion of the inner layer material discharge cylinder 52. In such a state, when the manufacturing process shifts from the outer layer material suction process to the inner layer material discharge start process, the inner layer material is discharged after the outer layer material filled in the tip portion of the inner layer material discharge cylinder 52 is discharged. It will be. Therefore, the multilayer product (multilayer food) manufactured in this way has a structure in which the lower part of the inner layer material is reinforced by the outer layer food material discharged from the inner layer material discharge cylinder 52 immediately after the start of the inner layer material discharge start process. Become. Thereby, it becomes possible to contribute to improvement in yield by suppressing manufacturing defects such as leakage of the inner layer material from the bottom side of the multilayer product due to the influence of the weight of the inner layer material and the like.

  In the multilayer food manufacturing apparatus 10 (multilayer product manufacturing apparatus) described above, the inner layer food discharge cylinder 52 and the outer layer food discharge cylinder 54 are provided as the discharge nozzle 42, and the central portion of the discharge area of the outer layer food formed in an annular shape Although the example in which the discharge region of the inner layer food material is formed in a circular shape is exemplified, the present invention is not limited to this. Specifically, like the discharge nozzle 142 shown in FIG. 13, in addition to the inner layer food discharge cylinder 152 and the outer layer food discharge cylinder 154 corresponding to the inner layer food discharge cylinder 52 and the outer layer food discharge cylinder 54, the inner layer food discharge cylinder 152. It is possible to provide an inner diameter side outer layer food material discharge cylinder 156 on the inner side and a central member 158 on the inner side of the inner diameter side outer layer food material discharge cylinder 156. By adopting such a configuration, the outer layer food material is discharged from the inner layer food material discharge tube 152 and the outer layer food material discharge tube 154 and between the inner diameter side outer layer food material discharge tube 156 and the central member 158 while being formed by these. The inner layer food material can be discharged in an annular shape inside the outer layer food material discharge region. Thereby, it becomes possible to discharge | release an inner layer food material cyclically | annularly like an outer layer food material inside the outer layer food material discharged in the donut shape.

  The configuration of the discharge nozzle 142 described above will be described in more detail. The outer layer food material discharge cylinder 154 has a through-hole 154a penetrating from the base end side (one end side) of the discharge nozzle 142 toward the tip end side (the other end side). A cylindrical member having a cylindrical portion 154b and a flange portion 154c bulging radially outward on the base end side is provided. Further, a first connecting portion 154d is formed in the peripheral portion of the flange portion 154c so as to penetrate in the thickness direction (radial direction).

  The inner layer food material discharge cylinder 152 includes a cylindrical portion 152b having a through hole 152a penetrating from the proximal end side (one end side) to the distal end side (the other end side) of the discharge nozzle 142, and radially outward on the proximal end side. And a bulging flange portion 152c. The cylindrical portion 152b is sized to fit within the through hole 154a of the outer layer food material discharge cylinder 154. Moreover, the cylindrical part 152b has the step part 152e in the boundary vicinity with the flange part 152c, and the outer diameter of the part of the front end side rather than the step part 152e is smaller than the outer diameter of the part of the base end side. . Therefore, when the inner-layer food discharge cylinder 152 is inserted into the through-hole 154a of the outer-layer food discharge cylinder 154, an annular flow path (hereinafter referred to as an outer-layer food material) is passed between the inner-layer food discharge cylinder 152 and the outer-layer food discharge cylinder 154. , Also referred to as “outer ring flow path 153”). Further, a second connection portion 152d is formed in the circumferential portion of the flange portion 152c so as to penetrate in the thickness direction (radial direction).

  The outer ring flow path 153 communicates with the first connection portion 154d in the assembled state of the discharge nozzle 142. Therefore, the outer layer food material can be discharged through the outer ring flow path 153 by supplying the outer layer food material to the first connection portion 154d. Further, in a state where the inner layer food material discharge cylinder 152 is inserted into the outer layer food material discharge cylinder 154 until the flange portions 152c and 154c come into contact with each other, the distal end portion of the cylindrical portion 154b discharges slightly from the distal end portion of the cylindrical portion 152b. It is located inside the nozzle 142 (base end side). Therefore, the outer ring flow path 153 has an expanded portion 153 a that extends radially inward (on the inner layer food material discharge cylinder 152 side) at the distal end portion of the discharge nozzle 142.

  The inner diameter side outer layer food material discharge cylinder 156 includes a cylindrical portion 156b having a through hole 156a and a flange portion 156c bulging radially outward on the proximal end side. The cylindrical portion 156 b is sized to fit within the through hole 152 a of the inner layer food material discharge cylinder 152. Further, a step portion 156e is formed in the vicinity of the boundary between the tubular portion 156b and the flange portion 156c, and the outer diameter of the portion on the distal end side from the step portion 156e is smaller than the outer diameter of the portion on the proximal end side. Yes. Therefore, when the inner diameter side outer layer food discharge cylinder 156 is inserted into the through hole 152 a of the inner layer food discharge cylinder 152, an annular layer for passing the inner layer food material between the inner layer food discharge cylinder 152 and the inner diameter side outer layer food discharge cylinder 156. A flow path (hereinafter also referred to as “middle ring flow path 155”) is formed. Further, a third connecting portion 156d is formed in the peripheral portion of the flange portion 156c so as to penetrate in the thickness direction (radial direction).

  The middle ring channel 155 communicates with the second connection portion 152d in the assembled state of the discharge nozzle 142. The middle ring channel 155 merges with the expansion portion 153 a of the outer ring channel 153 described above on the tip side of the discharge nozzle 142. Therefore, by supplying the outer layer food material to the second connection portion 152d, the layer food material can be discharged into the outer layer food material discharge region in the outer ring channel 153 via the middle ring channel 155.

  The central member 158 is a member having a substantially T-shaped cross section, and has a columnar columnar portion 158a and a flange portion 158b provided on the proximal end side thereof. The columnar portion 158 a is a portion inserted into the through hole 156 a of the inner diameter side outer layer food material discharge cylinder 156. A step portion 158c is formed in the vicinity of the boundary between the columnar portion 158a and the flange portion 158b, and the outer diameter is smaller at the distal end portion of the discharge nozzle 142 than the step portion 156e. ing. Therefore, when the columnar portion 158a is inserted into the through-hole 156a, an annular flow channel (hereinafter also referred to as “inner ring flow channel 157”) for allowing the outer layer food material to pass between the inner diameter side outer layer food material discharge cylinder 156 and the central member 158. ) Is formed. The inner ring channel 157 is formed at a position adjacent to the inner ring channel 155 described above on the radially inner side of the discharge nozzle 142. The above-described third connection portion 156d communicates with the inner annular flow path 157.

  A discharge nozzle 142 as described above is provided in place of the discharge nozzle 42, and a pipe (not shown) that can supply the outer layer food fed by the outer layer food pressure feeding device 32 in two branches is provided in the first connection portion 154d and the first connection portion 154d. The connection is made to the three connecting portions 156d. Moreover, the inner layer foodstuff pressure feeding apparatus 22 is connected with respect to the 2nd connection part 152d. As a result, the outer layer food material is discharged through the outer ring flow path 153 communicated with the first connection portion 154d and the inner ring flow path 157 communicated with the third connection portion 156d, and the inner layer is formed through the middle ring flow path 155 communicated with the second connection portion 152d. Ingredients can be discharged. Therefore, by using such a discharge nozzle 142 and discharging the outer layer food and the inner layer food in accordance with the control flow shown in FIG. 5, as shown in FIGS. 13B and 13C, the donut-shaped outer layer food is obtained. In addition, it is possible to produce a multilayer food product in which the inner layer food material is encapsulated in a ring shape.

  In the above modification, the example in which the outer layer food material can be pumped by the single outer layer food material pumping device 32 with respect to the first connection portion 154 and the third connection portion 156d is shown, but the present invention is limited to this. It is good also as a structure which connected another outer layer foodstuff pressure feeding apparatus 32 and 32 for every 1st connection part 154 and 3rd connection part 156d. Further, in such a configuration, the outer layer food material supplied to the outer ring flow channel 153 via the first connection portion 154 and the outer layer food material supplied to the inner ring flow channel 157 via the third connection portion 157 It is also possible to configure with another food material. By doing in this way, it becomes possible to manufacture the multilayer foodstuff which was rich in the variation as shown in FIG.13 (d).

≪Examples as multilayer confectionery manufacturing equipment and manufacturing method≫
The multilayer food manufacturing apparatus 10 described above can be used for manufacturing a confectionery such as a bun, for example. More specifically, a low-viscosity food material such as whipped cream or dissolved chocolate can be supplied as an outer layer food material, and a sauce such as chocolate or jam can be supplied as an inner layer food material. In the multilayer food manufacturing apparatus 10, in addition to making the outer layer food material harder and higher in viscosity than the inner layer food material as in the prior art, the outer layer food material may be made softer and less viscous than the inner layer food material. Is possible.

≪Examples of bread dough production equipment and production method≫
The multilayer food manufacturing apparatus 10 described above can be used for manufacturing bread dough having a multilayer structure. Specifically, it is possible to produce bread dough using fermented foods such as wheat flour or rye flour as the main ingredient, and foods such as cream, chocolate, and rice cake to be put in the dough as inner layer ingredients. .

≪Examples of ice cream / soft cream manufacturing equipment / method≫
The multilayer food production apparatus 10 described above can be used to produce a multilayered product of ice cream or soft cream. In addition, the multilayer food manufacturing apparatus 10 uses ice cream or soft cream as an outer layer food, and wraps another food that is more viscous and less fluid than ice cream or soft cream such as chocolate or cream as an inner layer food. It can also be used to produce multilayer ice creams or soft ice creams.

≪Examples as artificial how much manufacturing equipment or supplement manufacturing equipment / manufacturing method≫
In recent years, what is referred to as artificially manufactured artificially has been provided to resemble natural how much. Artificial shells are made by gelling sodium alginate or carrageenan to make a membrane (outer layer food) that contains a mixture of carrageenan, gelatin, pectin, salad oil, color material, etc. (inner layer food). It has been configured. In the case of manufacturing an artificial amount, sodium alginate or the like that forms the outer layer ingredients and the above-mentioned mixture that forms the inner layer ingredients are supplied to the multi-layer food production apparatus 10 and, as shown in FIG. A storage tank 90 storing an aqueous solution is provided, and the outer layer food material and the inner layer food material are discharged from the discharge unit 40 toward the storage tank 90. This makes it possible to manufacture an artificial amount.

  Also, supplements containing food supplements such as vitamins, minerals, amino acids, etc., or medicinal ingredients such as herbs (inner layer ingredients) inside the outer membrane (outer layer ingredients), similar to the artificial salmon mentioned above Is provided. Such supplements can also be manufactured using the multi-layer food manufacturing apparatus 10 by the same manufacturing method as the above-mentioned artificial salmon.

  When using a low-viscosity food material as an outer layer food material to the extent that it becomes a bowl-like shape or a spherical shape by dripping, such as the artificial amount described above, the outer layer food material is continuously used as shown in the timing chart of FIG. With the manufacturing method in which the inner layer food material is intermittently discharged while being discharged, the manufacturing speed can be increased.

≪Examples of production equipment and method for raw confectionery etc.≫
The multi-layer food manufacturing apparatus 10 described above uses a dough made from kuzu powder as an outer layer food material, and for manufacturing raw confectionery such as a water bun, a kuzu bun, or a narcissus bun that wraps an inner layer food material such as candy with this dough. Can be used. Moreover, the multilayer food manufacturing apparatus 10 can be used for manufacturing a confectionery formed by wrapping an inner layer food material such as ice cream, chocolate, cream, or rice cake with an outer layer food material made of candy, chocolate, or the like.

  In the case of producing raw confectionery such as water buns with the multi-layer food manufacturing apparatus 10, the dough having viscosity prepared by mixing katsu powder or sugar and heating is prepared in the outer layer food supply unit 30 as the outer layer food, and the outer layer The food material is fed by the food pressure device 32. In addition, food that is the core of raw confectionery such as candy is prepared as an inner layer food in the inner layer food supply unit 20 and is pumped by the inner layer food pumping device 22. By discharging the dough serving as the outer layer food and the koji serving as the inner layer food material at the discharge unit 40 at an appropriate timing in accordance with the control flow described above, a fresh confectionery such as a water bun, a kuzu bun or a narcissus bun can be produced. . Similarly, when manufacturing confectionery wrapped in ice cream or the like with strawberries or chocolate, the outer layer food ingredients are prepared and pumped to the outer food ingredient supply unit 30 and the ice cream or the like constituting the inner food ingredients is used as the inner layer. It can manufacture by preparing in the foodstuff supply part 20 and pumping.

≪Example as potion (coffee food) manufacturing equipment and manufacturing method≫
The multilayer food production apparatus 10 described above is used to produce a portion (coffee food) in which a beverage such as liquid coffee or tea is used as an inner layer food and the inner layer food is wrapped with a water-soluble outer layer food made of collagen or the like. can do. The beverage included as the inner layer food can be premixed with milk, sugar, gum syrup or the like. In addition, the beverage included as the inner layer food material may be a liquid, or may be gelled with collagen or the like in the same manner as the outer layer food material. After the potion thus manufactured is put into a cup or the like, the outer layer food material is dissolved with hot water to make it possible to drink coffee food such as coffee or tea. In the same way as described in the artificial amount or supplement manufacturing apparatus and manufacturing method described in Example 4 above, when the outer layer food can be solidified by contacting with other liquid, the above As in the fourth embodiment, a storage tank 90 (see FIG. 8) is provided, and the outer layer food material and the inner layer food material are discharged from the discharge unit 40 toward the storage tank 90, thereby improving manufacturing quality or facilitating manufacturing. It becomes possible.

≪Examples of chemical manufacturing equipment and manufacturing methods≫
The multilayer food manufacturing apparatus 10 described above can be used for manufacturing a drug in which a liquid or gel-like drug is used as an inner layer food and the inner layer food is wrapped with a water-soluble outer layer food made of collagen or the like. The water-like medicine included as the inner layer food material may be a single kind or a mixture of plural kinds. In the case of using the multi-layered food production apparatus 10 for the production of medicines, a storage tank 90 (see FIG. 8) is provided below the discharge nozzle 42 as described in the fourth embodiment. Alternatively, the outer layer food material and the inner layer food material may be discharged from the discharge unit 40. Thereby, improvement of manufacturing quality or facilitation of manufacturing can be achieved.

≪Examples of manufacturing equipment and manufacturing method for industrial products≫
An apparatus having the same structure and configuration as the multilayer food manufacturing apparatus 10 described above is an apparatus for manufacturing an industrial product other than food, in which an inner layer material is wrapped with an outer layer material (hereinafter referred to as “multilayer product manufacturing apparatus”). 10 ”). In this case, the inner-layer food supply unit 20, the inner-layer food pumping device 22, the inner-layer food channel 44, the inner-layer food discharge cylinder 52, and the like provided for the inner-layer food in the multilayer food manufacturing apparatus 10 are used for the inner-layer material. it can. Further, the outer layer food supply unit 30, the outer layer food pressure feeding device 32, the outer layer food channel 46, the outer layer food discharge cylinder 54, and the like provided for the outer layer food can be used for the outer layer material.

  According to the multilayer product manufacturing apparatus 10 described above, a multilayer product can be manufactured by supplying a material having a viscosity equal to or less than that of the inner layer material as the outer layer material. The multilayer product that can be manufactured by the multilayer product manufacturing apparatus 10 includes a liquid or gel deodorant or fragrance as an inner layer material, which is wrapped in an outer layer material that forms an outer shell, and is made into a spherical or beaded deodorant product or There are various products such as aromatic products, bath products in which inner layer materials such as soap and bathing agents are wrapped with jelly-like outer layer materials and water-soluble outer layer materials.

≪Examples of manufacturing apparatus and manufacturing method for multi-layered confectionery etc. whose outer periphery is wrapped with outer layer material≫
As shown in FIGS. 10B and 10C, a roll that wraps the outer periphery of an inner layer material (inner layer food material) that becomes a core of wrinkles, wrinkles, etc. with outer layer material (outer layer food materials) such as wrinkles and wrinkles The multilayer product manufacturing apparatus 10 can be used for manufacturing a multilayered confectionery or the like. Specifically, as shown in the timing chart of FIG. 10A, both the inner layer food material feeding device 22 and the outer layer food material feeding device 32 are operated, and the inner layer food material and the outer layer food material are discharged simultaneously from the discharge nozzle 42. In such a discharge state, either one or both of the discharge nozzle 42 and the conveying surface of the conveyor forming the table 80 provided below the discharge nozzle 42 are moved in the horizontal direction. Thereby, the roll-shaped multilayer foodstuff (multilayer product) as shown to FIG.10 (b), (c) can be manufactured.

  In the example shown in FIG. 10B, the multilayer food has a cylindrical shape, but the shape of the discharge nozzle 42 is changed, or the discharge shape of the inner layer food and the outer layer food is changed with respect to the discharge nozzle 42. If the attachment for making it attach etc., the multilayer foodstuff of various shapes can be manufactured. Specifically, if the inner layer food and the outer layer food can be discharged from the discharge nozzle 42 so as to have a flat cross-sectional shape, a flat multilayer food can be manufactured. Further, if the outer layer food material discharge cylinder 54 forming the discharge nozzle 42 has a cross-sectional shape such as a star shape, the outer shape is a star shape or the like, and the multilayer food product has a shape in which the inner layer food material serving as a core is enclosed inside. Can be manufactured.

≪Examples of manufacturing equipment and manufacturing method for multilayer donuts≫
In the multilayer food manufacturing apparatus 10, the above-described discharge nozzle 142 (see FIG. 13A) is adopted, and dough dough composed mainly of flour is supplied to the discharge nozzle 142 as an outer layer food material. By supplying food such as candy, chocolate, or cream to the discharge nozzle 142 as the inner layer food, as shown in FIGS. 13B and 13C, the inside of the ring-shaped outer layer food forming the donut It becomes possible to produce a multilayer food product in which the inner layer food is included in a ring shape along the outer layer food.

  Also, separate outer layer food pressure feeding devices 32, 32 are connected to the first connection part 154 and the third connection part 156d provided for supplying the outer layer food in the discharge nozzle 142, and taste, color, texture, or fragrance As shown in FIG. 13 (d), doughnuts made of different outer layer foodstuffs on the outer diameter side and the inner diameter side as shown in FIG. 13 (d) are supplied to the outer ring channel 153 and the inner ring channel 157. Can be provided.

  The multi-layer food production apparatus (multi-layer product production apparatus) of the present invention is effective for producing multi-layer foods such as confectionery (multi-layer confectionery) formed in a multi-layer structure, bread dough, ice cream, soft cream, artificial salmon and supplements. Can be used. In particular, the outer layer food material can be effectively used in the production of multilayer foods composed of soft food materials having a lower viscosity than the inner layer food material. Moreover, the multilayer product manufacturing apparatus and the multilayer product manufacturing method of the present invention can be effectively used not only for foods but also for manufacturing industrial products.

10 Multi-layer food production equipment (multi-layer product production equipment)
DESCRIPTION OF SYMBOLS 20 Inner-layer food supply part 22 Inner-layer food feeding apparatus 30 Outer-layer food supply part 32 Outer-layer food pumping apparatus 40 Discharge part 42 Discharge nozzle 44 Inner-layer food flow path 46 Outer-layer food flow path 52 Inner-layer food discharge cylinder 54 Outer-layer food discharge cylinder 70 Control means 90 Storage tank 100, 200 Uniaxial eccentric screw pump mechanism 102, 202 Rotor 104, 204 Stator

  The present invention relates to a multi-layer food manufacturing apparatus, a multi-layer product manufacturing apparatus, and a multi-layer product manufacturing method used for manufacturing a multi-layer food having a multi-layer structure in which an inner layer food material is filled in a viscous outer layer food material such as a high-viscosity liquid material. About.

  Conventionally, as a device for manufacturing a multilayer food such as a bun or a confectionery wrapped with a shell made of another food, such as rice cake, a manufacturing apparatus for food as disclosed in the following Patent Documents 1 to 4, Alternatively, a manufacturing method is provided. The packaging product manufacturing apparatus disclosed in the following Patent Document 1 has an inner packaging material supply cylinder and an outer skin material supply cylinder set coaxially, and moves the outer skin material supply cylinder upward while moving the outer skin material. From the time when a constant amount of the skin material is supplied to before the end of the supply of the skin material, while continuing to discharge the skin material in the skin material supply tube, By discharging from the material supply cylinder, a multilayer food material in which the inner packaging material is wrapped with the outer skin material can be manufactured.

  Moreover, the manufacturing method of the packaged food currently disclosed by the following patent document 2 is the same as that by the packaging product manufacturing apparatus of patent document 1, expanding a space | interval of a double nozzle and a conveyance member, and using a double nozzle. The envelope food is produced by starting to extrude the outer shell material from the outer nozzle, and starting to extrude the inner packaging material from the inner nozzle after a certain period of time has elapsed.

JP 2011-115113 A JP-A-6-98684

  In the above-described prior art packaging product manufacturing apparatus and the like, it is possible to manufacture a multilayer food product in which inner layer food materials (inner packaging materials) such as rice cake are wrapped with relatively hard outer layer food materials (outer material) such as buns. it can. However, a multilayer food material cannot be manufactured using a food material that has viscosity as the outer layer food material and is softer than the inner layer food material (inner packaging material). That is, in the prior art packaging product manufacturing apparatus and the like, there is a problem that the foods that can be used as the outer layer food and the inner layer food are limited, and variations of the multilayer foods that can be manufactured are limited.

  Therefore, the present invention is capable of producing a high-quality multi-layer food while using a viscous food as the outer-layer food and the inner-layer food, and further having a simple device configuration, a multi-layer food production device, a multi-layer product production device, and a multi-layer product The purpose was to provide a manufacturing method.

The present invention provided to solve the above-described problems is a multilayer food manufacturing apparatus used for manufacturing a multilayer food product in which a viscous inner layer food is wrapped with a viscous outer layer food, and the inner layer food can be pumped. Inner layer food supply unit including inner layer food material feeding device, outer layer food material supply unit including outer layer food material feeding device capable of pumping the outer layer food material, and inner layer food material pumped from the inner layer food material supply unit and outer layer food material supply unit And a discharge portion for discharging the outer layer food material, and the discharge portion inserts an inner layer food material discharge cylinder connected to the inner layer food material supply portion inside the outer layer food material discharge tube connected to the outer layer food material supply portion. The inner layer food pressure feeding device and the outer layer food pressure feeding device are provided with a male screw type rotor that rotates eccentrically under power, and a stator having an inner peripheral surface formed in a female screw type. Der those with uniaxial eccentric screw pump mechanism is, having a control means for pumping control of the inner food material and the outer layer ingredients, after the start pumping of the outer food material, the uniaxial eccentric forming the outer layer ingredients pumping device The operation of ending pumping by rotating the rotor of the screw pump mechanism in the direction opposite to that during pumping, and the rotor of the uniaxial eccentric screw pump mechanism forming the outer layer food pumping device after starting the pumping of the inner layer food, The operation of ending the pumping by rotating in the direction opposite to that during the pumping can be performed .

  In the multilayer food product production apparatus of the present invention, a multilayer food product can be produced using a food material having viscosity such as a high-viscosity liquid material as the inner layer food and the outer layer food. Therefore, according to the multi-layer food production apparatus of the present invention, it is possible to produce a multi-layer food in which the outer-layer food material is made of a viscous food that could not be produced by the prior art packaging product production apparatus or the like. Become.

  In the multilayer food manufacturing apparatus of the present invention, the inner layer food pressure feeding device and the outer layer food pressure feeding device have a uniaxial eccentric screw pump mechanism. Therefore, the pumping state of the inner layer food and the outer layer food can be accurately controlled, and the inner layer food and the outer layer food can be discharged from the discharge nozzle at an appropriate amount and timing. Therefore, according to the multilayer food production apparatus of the present invention, the production quality of the multilayer food can be further improved.

  In the present invention, the uniaxial eccentric screw pump mechanism that constitutes the inner layer food pressure feeding device and the outer layer food pressure feeding device adjusts the rotation direction of the rotor, so that the flow direction of the fluid (inner layer food material, outer layer food material) to be pumped is adjusted. Can be switched as appropriate. Therefore, when stopping the pumping of the inner layer food and the outer layer food, the discharge of the inner layer food and the outer layer food can be reliably stopped by rotating the rotor in the reverse direction. Therefore, according to the present invention, it is possible to provide a multilayer food manufacturing apparatus that can prevent deterioration of the quality of the multilayer food due to the inner layer food and the outer layer food being discharged more than expected, and has a simple apparatus configuration.

  The multi-layer food manufacturing apparatus of the present invention described above is capable of manufacturing multi-layer food by supplying, as the outer layer food, a food having a viscosity equal to or lower than the viscosity of the inner layer food. It is desirable.

  According to such a configuration, in addition to the multilayer food material in which the inner layer food material is wrapped with the outer layer food material having a higher viscosity than this, the outer layer food material is not the inner layer food material which could not be manufactured in the conventional packaging product manufacturing apparatus or the like. It becomes possible to produce a multi-layered food formed from a food having a lower viscosity than the above.

  In the multilayer food manufacturing apparatus of the present invention described above, the discharge unit includes a plurality of the discharge nozzles, an inner layer food flow path connecting the inner layer food pressure feeding device and the inner layer food discharge tube, the outer layer food pressure feeding device, and the An outer layer food channel connecting outer layer food discharge cylinders, the inner layer food channel and the outer layer food channel branched into a plurality of systems, and the discharge nozzle is connected to an end of each system It is desirable that it is characterized by this.

  According to such a configuration, it is possible to distribute the inner layer food and the outer layer food fed by the inner layer food feeding device and the outer layer food feeding device to the plurality of discharge nozzles. This makes it possible to further mass-produce multilayer foods.

  In addition, the multilayer food manufacturing apparatus of the present invention described above has a control unit that performs pressure control of the inner layer food and the outer layer food, and the control unit performs predetermined processing after the outer layer food starts to be pumped by the outer layer food pump. The inner layer food pumping device starts pumping the inner layer food at the timing when time passes, and the inner layer food pumping by the inner layer food pumping device is a predetermined time before the end of the outer layer food pumping by the outer layer food pumping device. It is desirable that it is characterized by terminating.

  In the multilayer food manufacturing apparatus of the present invention, the inner layer food pressure feeding device and the outer layer food pressure feeding device are each provided with a uniaxial eccentric screw pump mechanism. Therefore, as in the present invention, the multi-layer food is controlled by controlling the timing of the start and end of pumping of the inner layer food material by the inner layer food pumping device with reference to the time when the outer layer food material is pumped by the outer layer food pumping device and the time of the end of pumping. It becomes possible to make the manufacturing quality of the product highly accurate and stable.

  The multi-layer food manufacturing apparatus of the present invention described above has a control means for controlling the feeding of the inner layer food and the outer layer food, and when the inner layer food and the outer layer food are finished being pumped, the inner layer food feeding device and the outer layer food feeding device. It is desirable that the rotor of the uniaxial eccentric screw pump mechanism configured as described above is rotated in the direction opposite to that during pressure feeding.

  In the multilayer food manufacturing apparatus of the present invention, since the inner layer food pumping device and the outer layer food pumping device are provided with a uniaxial eccentric screw pump mechanism, the flow of the inner layer food and the outer layer food by switching the rotation direction of the rotor. The direction can be switched. In the present invention, when the pumping of the inner layer food and the outer layer food is stopped, the rotor is rotated in the direction opposite to that during the pumping, so that the discharge of the inner layer food and the outer layer food can be stopped reliably. Therefore, according to the present invention, it is possible to prevent the food having the viscosity corresponding to the inner layer food and the outer layer food from being unexpectedly excessively discharged, and to make the production quality of the multilayer food highly accurate and stable. Is possible.

  The multi-layer food manufacturing apparatus of the present invention described above has a storage tank provided below the discharge nozzle, and can drop the multi-layer food discharged from the discharge nozzle toward the storage tank. It may be.

  In such a configuration, a liquid or the like used for solidifying the outer layer food is stored in a storage tank, and the inner layer food and the outer layer food are discharged from the discharge nozzle toward the storage tank to produce a multilayer food. It becomes possible. Therefore, according to the multilayer food production apparatus of the present invention, it is possible to produce a multilayer food material that could not be produced by the prior art packaging product production apparatus or the like.

  In the multilayer food manufacturing apparatus of the present invention described above, the discharge nozzle can discharge the inner layer food in a ring shape inside the discharge region of the outer layer food while discharging the outer layer food in a ring.

  By adopting such a configuration, it becomes possible to produce a multilayer food product having a so-called donut-like appearance shape in which an inner layer food material is annularly contained inside an annular outer layer food material.

  In the multilayer food manufacturing apparatus of the present invention described above, the discharge nozzle has an inner diameter side outer layer food discharge cylinder inside the inner layer food discharge cylinder, and an outer layer food non-passage area inside the inner diameter side outer food discharge cylinder It is also possible to provide an annular flow path through which the outer layer food material can pass between the inner diameter side outer layer food material discharge cylinder and the central member.

  By setting it as this structure, it becomes possible to manufacture the cyclic | annular (doughnut-shaped) multilayer foodstuff as mentioned above. Further, an outer layer food material discharged from an annular flow path (also referred to as an “outer ring flow path”) formed between the outer layer food material discharge cylinder and the inner layer food material discharge cylinder, an inner diameter side outer layer food material discharge cylinder, and a central member By making the outer layer food material discharged from the annular flow path (also referred to as “inner ring flow path”) formed therebetween different, it becomes possible to produce a multilayer food rich in variations.

Further, the present invention provided to solve the same problem is a multilayer product manufacturing apparatus used for manufacturing a multilayer product in which a viscous inner layer material is wrapped with a viscous outer layer material, wherein the inner layer material is used as the inner layer material. The inner layer material supply unit provided with the inner layer material pumping device capable of pumping, the outer layer material supply unit provided with the outer layer material pumping device capable of pumping the outer layer material, and pumped from the inner layer material supply unit and the outer layer material supply unit. And an inner layer material discharge cylinder connected to the inner layer material supply unit inside the outer layer material discharge cylinder connected to the outer layer material supply unit. The inner layer material feeding device and the outer layer material feeding device are provided with a male screw type rotor that rotates eccentrically by receiving power, and a stator in which an inner peripheral surface is formed into a female screw type. Der those with uniaxial eccentric screw pump mechanism having is, a control means for performing pumping control of the inner layer material and the outer layer material, after the start pumping of the outer layer material, uniaxial forming the outer layer material pumping device The operation of ending the pumping by rotating the rotor of the eccentric screw pump mechanism in the direction opposite to that during the pumping, and the rotor of the uniaxial eccentric screw pump mechanism forming the outer layer material pumping device after starting the pumping of the inner layer material. The operation of ending the pumping by rotating in the direction opposite to that during the pumping can be performed .

  In the multilayer product manufacturing apparatus of the present invention, a multilayer product can be manufactured using materials having viscosity such as a high-viscosity liquid material as the inner layer material and the outer layer material. Therefore, according to the multilayer product manufacturing apparatus of the present invention, it is possible to manufacture a multilayer material in which the outer layer material is formed of a viscous material that could not be manufactured in the prior art.

  In the multilayer product manufacturing apparatus of the present invention, the inner layer material pumping device and the outer layer material pumping device are configured to include a uniaxial eccentric screw pump mechanism. Therefore, the pumping state of the inner layer material and the outer layer material can be accurately controlled, and the inner layer material and the outer layer material can be discharged from the discharge nozzle at an appropriate amount and timing. Therefore, according to the multilayer product manufacturing apparatus of the present invention, the manufacturing quality of the multilayer product can be further improved.

  In the present invention, the uniaxial eccentric screw pump mechanism that constitutes the inner layer material pumping device and the outer layer material pumping device adjusts the rotation direction of the rotor to adjust the flow direction of the fluid (inner layer material, outer layer material) to be pumped. Can be switched as appropriate. Therefore, when the pumping of the inner layer material and the outer layer material is stopped, the discharge of the inner layer material and the outer layer material can be reliably stopped by rotating the rotor in the reverse direction. Therefore, according to the present invention, it is possible to provide a multilayer product manufacturing apparatus that can prevent deterioration of the quality of the multilayer product due to the inner layer material and the outer layer material being ejected more than expected, and has a simple device configuration.

  In addition, in this invention and the following description, "multilayer product" is not limited to the multilayer foodstuff mentioned above, but is the concept which points out the whole what wrapped the inner layer material with the outer layer material. In the present invention, the “inner layer material” and the “outer layer material” are not limited to the “inner layer food material” and the “outer layer food material” constituting the multilayer food, and are concepts including all materials other than the food material.

  In the multilayer product manufacturing apparatus of the present invention described above, the discharge nozzle can discharge the inner layer material in a ring shape inside the discharge region of the outer layer material while discharging the outer layer material in a ring shape.

  By adopting such a configuration, it becomes possible to manufacture a multilayer product having a so-called donut-like appearance shape in which the inner layer material is included in an annular shape inside the outer layer material formed in an annular shape.

In the present invention, the inner layer material and the outer layer material are discharged from a discharge nozzle in which the inner layer material discharge cylinder for discharging the inner layer material is inserted inside the outer layer material discharge cylinder for discharging the outer layer material. A method for manufacturing a multilayer product in which a viscous inner layer material is wrapped by an outer layer material having an outer layer material, the outer layer material pumping device connected to the outer layer material discharge cylinder, and the inner layer material pumping connected to the inner layer material discharge cylinder The apparatus includes a uniaxial eccentric screw pump mechanism having a male screw type rotor that rotates eccentrically upon receiving power, and a stator having an inner peripheral surface formed into a female screw type. The material is pumped and an outer layer material discharge start step for starting discharge of the outer layer material at the discharge nozzle, and after the predetermined time has elapsed after the outer layer material discharge start step, An inner layer material discharge start step for starting the pumping of the inner layer material by the layer material pumping device, an inner layer material discharge stop step for stopping the pumping of the inner layer material by the inner layer material pumping device after the inner layer material discharge start step, and the inner layer after material discharge stopping step, possess an outer layer material discharge stopping step of stopping the pumping of the outer layer material by the outer layer material pumping device, in the inner layer material discharge stop step, the rotor of the inner layer material pumping device of the inner layer material The discharge of the inner layer material is stopped by operating in the direction opposite to the time of discharge, and in the outer layer material discharge stop step, the rotor of the outer layer material pumping device is operated in the direction opposite to the time of discharge of the outer layer material. The discharge of the outer layer material is stopped .

  The inner layer material pumping device and the outer layer material pumping device used in the method for manufacturing a multilayer product of the present invention are configured to include a uniaxial eccentric screw pump mechanism. Therefore, the pumping state of the inner layer material and the outer layer material can be accurately controlled, and the inner layer material and the outer layer material can be discharged from the discharge nozzle at an appropriate amount and timing. Thereby, it becomes possible to manufacture a multilayer product using materials having viscosity such as a high-viscosity liquid material as the inner layer material and the outer layer material. Therefore, according to the method for producing a multilayer product of the present invention, a multilayer product formed by a material having an outer layer material having a viscosity, which could not be produced by a prior art packaging product production apparatus or the like, is made to have a high quality. Can be manufactured.

  Here, as described above, when a multilayer product is manufactured using a material having viscosity such as a high-viscosity liquid material as the inner layer material and the outer layer material, even if the pumping of the inner layer material or the outer layer material is stopped, the surface tension The inner layer material and the outer layer material may remain in the vicinity of the end portion of the discharge nozzle due to the influence of the above. In order to prevent deterioration of the inner layer material and the outer layer material, it is preferable to reduce the possibility of being exposed to the outside air while adhering to the vicinity of the end of the discharge nozzle even during a short period of time during which discharge is stopped. When the material and the outer layer material are food materials, it is desirable to prevent exposure to the outside air. Also, when the next inner layer material or outer layer material is discharged in the state where the inner layer material or outer layer material is attached near the end of the discharge nozzle, the inner layer material or the amount attached to the vicinity of the end of the discharge nozzle The discharge amount of the outer layer material is increased, and the production quality of the multilayer product may vary.

  Furthermore, since the discharge nozzle used in the manufacturing method of the multilayer product of the present invention has a structure in which the inner layer material discharge tube and the outer layer material discharge tube are arranged substantially concentrically, the end of the inner layer material discharge tube and the outer layer material discharge tube There is a possibility that the inner layer material and the outer layer material adhering to the part may be mixed while the discharge is stopped. If the inner layer material and the outer layer material are mixed, not only the appearance may be deteriorated but also the characteristics may be deteriorated. Specifically, when the inner layer material and the outer layer material are foods, in addition to the appearance problems associated with mixing, there are various problems such as food hygiene problems or problems such as changes in taste and aroma. Problems arise and the commercial value of the multilayer product may be significantly impaired. In order to solve these problems, it is desirable to pull back the inner layer material discharge cylinder and the outer layer material discharge cylinder inward when stopping the discharge of the inner layer material and the outer layer material.

  In order to respond to such a demand, the multilayer product manufacturing method of the present invention is configured such that when the inner layer material pumping is stopped in the inner layer material discharge stopping step, the rotor of the inner layer material pumping device is used to discharge the inner layer material. It is desirable that the rotor of the outer layer material pumping device is operated in a direction opposite to that during the discharge of the outer layer material when the outer layer material is stopped in the outer layer material discharge stopping step. .

  In the present invention, the uniaxial eccentric screw pump mechanism that forms the inner layer material pumping device and the outer layer material pumping device appropriately adjusts the flow direction of the fluid (inner layer material, outer layer material) to be pumped by adjusting the rotation direction of the rotor. Switching is possible. Therefore, as in the manufacturing method of the present invention, when the pumping of the inner layer material and the outer layer material is stopped, the inner layer material attached to the end portions of the inner layer material discharge cylinder and the outer layer material discharge cylinder by rotating the rotor reversely and By pulling back the outer layer material, it is possible to reduce the possibility that the inner layer material and the outer layer material are exposed to the outside air while the discharge is stopped. Further, according to the present invention, it is possible to prevent deterioration in quality of the multilayer product due to the inner layer material and the outer layer material being discharged more than expected. Furthermore, it is possible to prevent the inner layer material and the outer layer material from being mixed at the end portions of the inner layer material discharge cylinder and the outer layer material discharge cylinder while the discharge is stopped, and the deterioration of the quality of the multilayer product due to the mixing of the inner layer material and the outer layer material. .

In the multilayer product manufacturing method according to the present invention described above, the inner layer material and the outer layer are formed from a discharge nozzle in which the inner layer material discharge cylinder for discharging the inner layer material is inserted inside the outer layer material discharge cylinder for discharging the outer layer material. A method of manufacturing a multilayer product in which a viscous inner layer material is wrapped with a viscous outer layer material by discharging the material, the outer layer material pumping device connected to the outer layer material discharge cylinder, and the inner layer material discharging The inner layer material pumping device connected to the cylinder is provided with a uniaxial eccentric screw pump mechanism having a male screw type rotor that rotates eccentrically under power and a stator having an inner peripheral surface formed in a female screw type. An outer layer material discharge start step of pumping the outer layer material by the outer layer material pumping device and starting discharge of the outer layer material at the discharge nozzle; and the outer layer material discharge start step Then, after a predetermined time has elapsed, an inner layer material discharge start step for starting discharge of the inner layer material at the discharge nozzle, and an inner layer material discharge stop for stopping the discharge of the inner layer material by the inner layer material pumping device after the inner layer material discharge start step And after the inner layer material discharge stop step, an outer layer material discharge stop step for stopping the discharge of the outer layer material by the outer layer material pumping device, after the outer layer material discharge start step, Prior to the discharge start process, the rotor of the inner layer material pumping device is operated in the direction opposite to that during the discharge of the inner layer material, and the outer layer food material discharged from the outer layer material discharge cylinder is sucked into the inner layer material discharge cylinder. An outer layer material suction step may be included.

  In the manufacturing method of the multilayer product of the present invention, before starting the discharge of the inner layer material in the inner layer food material discharge start step, by operating the rotor of the inner layer material pumping device in the opposite direction to the discharge in the outer layer material suction step, The outer layer food material discharged from the outer layer material discharge cylinder is sucked into the inner layer material discharge cylinder. Therefore, when the inner layer material discharge start step is started, first, the outer layer food material sucked into the end portion of the inner layer material discharge cylinder is discharged, and then the inner layer food material is discharged. Thereby, it becomes possible to contribute to improvement in yield by suppressing manufacturing defects such as leakage of the inner layer material from the bottom side of the multilayer product due to the influence of the weight of the inner layer material and the like.

The present invention discharges the inner layer material and the outer layer material from a discharge nozzle in which the inner layer material discharge cylinder for discharging the inner layer material is inserted inside the outer layer material discharge cylinder for discharging the outer layer material. A method for manufacturing a multilayer product in which a viscous inner layer material is wrapped by an outer layer material having an outer layer material pumping device connected to the outer layer material discharge tube, and an inner layer material pumping device connected to the inner layer material discharge tube Is provided with a uniaxial eccentric screw pump mechanism having a male screw type rotor that rotates eccentrically upon receiving power, and a stator having an inner peripheral surface formed in a female screw type, and the outer layer material is continuously provided in the discharge nozzle. In this state, the inner layer material is discharged intermittently and continuously .

  The inner layer material pumping device and the outer layer material pumping device used in the method for producing a multilayer product of the present invention are configured to include a uniaxial eccentric screw pump mechanism, and the inner layer material and the outer layer material are assumed to be viscous such as a high viscosity liquid material. Even if it has, it is possible to accurately control the pumping state. Therefore, the inner layer material and the outer layer material can be discharged from the discharge nozzle at an appropriate amount and timing. Therefore, it becomes possible to manufacture a multilayer product using materials having viscosity such as a high-viscosity liquid material as the inner layer material and the outer layer material.

  Further, by adopting a uniaxial eccentric screw pump mechanism as the inner layer material pumping device and the outer layer material pumping device as in the manufacturing method of the present invention, the pumping state of the inner layer material and the outer layer material is controlled with high accuracy. be able to. Therefore, as in the manufacturing method of the present invention, it is possible to manufacture a high-quality multilayer product by intermittently discharging the inner layer material after starting the discharge of the outer layer material.

  According to the manufacturing method of the present invention, it is possible to manufacture a multilayer product by intermittently discharging the inner layer material while the outer layer material is continuously discharged. Therefore, according to the manufacturing method of the present invention, the manufacturing speed of the multilayer product can be significantly increased as compared with the case where the discharge of the outer layer material is stopped every time one multilayer product is manufactured.

  Here, in addition to the multilayer product (multilayer food) in which the inner layer material (inner layer food material) such as candy is completely encased by the outer layer material (outer layer food material) such as a bun, the outer periphery material of the inner layer material as the core is the outer layer material. There is a desire to produce a multilayer product in a roll shape in which the end of the inner layer material is exposed to the outside (see FIGS. 10B and 10C).

In order to meet such a demand, the inner layer material and the outer layer material are discharged from a discharge nozzle in which the inner layer material discharge cylinder for discharging the inner layer material is inserted inside the outer layer material discharge cylinder for discharging the outer layer material. A method for producing a multilayer product in which a viscous inner layer material is wrapped with a viscous outer layer material, the outer layer material feeding device connected to the outer layer material discharge cylinder, and the inner layer connected to the inner layer material discharge cylinder The material pressure feeding device includes a uniaxial eccentric screw pump mechanism having a male screw type rotor that rotates eccentrically by receiving power, and a stator having an inner peripheral surface formed in a female screw type, and the outer layer in the discharge nozzle It is possible to simultaneously start and stop discharging the material and the inner layer material.

According to the manufacturing method described above, it is possible to easily manufacture a multilayer product in a roll shape in which the outer periphery of the inner layer material serving as the core is wound with the outer layer material and the end portion of the inner layer material is exposed to the outside. It becomes possible.

  Moreover, in the manufacturing method of the multilayer product of this invention, what was equipped with the uniaxial eccentric screw pump mechanism as an inner-layer material pumping apparatus and an outer-layer material pumping apparatus is employ | adopted. Therefore, even if the inner layer material and the outer layer material have a viscosity such as a high-viscosity liquid material, the pumping state can be accurately controlled. Thereby, even when a material having viscosity such as a high-viscosity liquid material is used as the inner layer material and the outer layer material, a high-quality multilayer product can be manufactured.

  In the multilayer product manufacturing method of the present invention, it is desirable that the discharge nozzle can discharge the inner layer material annularly inside the discharge region of the outer layer material while discharging the outer layer material annularly.

  According to the present invention, it is possible to manufacture a multilayer product having a so-called donut-like appearance shape in which an inner layer material is included in an annular shape inside an outer layer material formed in an annular shape.

  According to the present invention, a multi-layer food manufacturing apparatus, a multi-layer product manufacturing apparatus, and a multi-layer product that are capable of manufacturing a high-quality multi-layer food while using viscous ingredients as the outer layer food and the inner layer food, and that have a simple device configuration. The manufacturing method of can be provided.

(A) is a front view of the multilayer foodstuff manufacturing apparatus which concerns on one Embodiment of this invention, (b) is a side view. (A) is sectional drawing which shows the internal structure of an inner layer foodstuff feeding apparatus, (b) is sectional drawing which shows the uniaxial eccentric screw pump mechanism with which the outer layer foodstuff feeding apparatus is equipped. (A) is a skeleton figure which shows schematic structure of an outer-layer foodstuff flow path, (b) is a skeleton figure which shows schematic structure of an inner-layer foodstuff flow path. It is a figure which shows a discharge part, (a) is a front view, (b) is a top view, (c) is a bottom view, (d) is an enlarged view of a discharge nozzle, (e) is a side view, (f) is a side view AA sectional view, (g) is a BB sectional view, (h) is a CC sectional view, (i) is a DD sectional view, and (j) is an EE sectional view. It is a flowchart which shows operation | movement of the multilayer foodstuff manufacturing apparatus shown in FIG. It is a timing chart which shows operation | movement of the multilayer foodstuff manufacturing apparatus shown in FIG. It is a timing chart which shows the modification of operation | movement of the multilayer foodstuff manufacturing apparatus shown in FIG. It is explanatory drawing which shows the apparatus structure used in order to manufacture the artificial how much concerning one Example of this invention. (A) is a timing chart which shows the modification of the manufacturing method of the multilayer product of this invention, (b), (c) is a cross section which shows an example of the multilayer product manufactured according to the timing chart shown to (a) FIG. (A) is a timing chart which shows the reference example of the manufacturing method of the multilayer product of this invention, (b) is a perspective view which shows an example of the multilayer product manufactured according to the timing chart shown to (a), (c) ) Is a cross-sectional view of the multilayer product shown in FIG. It is the schematic diagram which showed the discharge state of the outer-layer foodstuff and inner-layer foodstuff by the control flow shown in FIG. It is a schematic diagram for demonstrating the control flow which concerns on a modification. (A) is sectional drawing of the discharge nozzle which concerns on a modification, (b)-(d) is sectional drawing of the multilayer foodstuff which can be manufactured using the discharge nozzle shown to (a).

  Then, the multilayer foodstuff manufacturing apparatus 10 which concerns on one Embodiment of this invention is demonstrated in detail, referring drawings. The multi-layer food manufacturing apparatus 10 is used for manufacturing a multi-layer food (multi-layer product) in which a core food (hereinafter also referred to as an “inner layer food”) is wrapped with an outer food (hereinafter also referred to as an “outer layer food”). Device. The multilayer food production apparatus 10 can produce a multilayer food material using a viscous food material as the inner layer food material (inner layer material) and the outer layer food material (outer layer material).

  As shown in FIG. 1, the multilayer food manufacturing apparatus 10 includes an inner layer food supply unit 20, an outer layer food supply unit 30, a discharge unit 40, and a control unit 70. The inner layer food supply unit 20 is for supplying the discharge unit 40 with the inner layer food forming the multilayer food. The inner layer food supply unit 20 includes an inner layer food feeding device 22 that can pump the inner layer food, an inner layer food storage tank 24, and a stirring device 26.

  The inner layer food pressure feeding device 22 is constituted by a rotary positive displacement pump. As shown in FIG. 2 (a), the inner layer food pressure feeding device 22 is a so-called uniaxial eccentric screw pump including a uniaxial eccentric screw pump mechanism 100. The inner layer food pressure feeding device 22 is configured to house the rotor 102, the stator 104, the power transmission mechanism 108, and the like inside the casing 106. The casing 106 is a cylindrical member made of metal, and a first opening 110 is provided on one end side in the longitudinal direction. A second opening 112 is provided on the outer peripheral portion of the casing 106. The second opening 112 communicates with the internal space of the casing 106 at an intermediate portion 114 located at the intermediate portion in the longitudinal direction of the casing 106.

  The first opening 110 and the second opening 112 are portions that function as a suction port and a discharge port of the uniaxial eccentric screw pump mechanism 100, respectively. The inner layer food pressure feeding device 22 can function the first opening 110 as a discharge port and the second opening 112 as a suction port by rotating the rotor 102 in the forward direction. Further, by rotating the rotor 102 in the reverse direction, the first opening 110 can function as a suction port and the second opening 112 can function as a discharge port.

  The stator 104 is a member having a substantially cylindrical outer shape formed of an elastic body such as rubber or a resin. The inner peripheral wall 116 of the stator 104 has a single-stage or multi-stage female thread shape with n strips. In the present embodiment, the stator 104 has a multistage female screw shape with two threads. Further, the through-hole 118 of the stator 104 is formed so that its cross-sectional shape (opening shape) is substantially oval when viewed in cross section at any position in the longitudinal direction of the stator 104.

  The rotor 102 is a metal shaft, and has a single-stage or multi-stage male screw shape with n-1 strips. In the present embodiment, the rotor 102 has a male screw shape that is eccentric with a single thread. The rotor 102 is formed so that its cross-sectional shape is substantially a true circle when viewed in cross section at any position in the longitudinal direction. The rotor 102 is inserted into the through hole 118 formed in the stator 104 described above, and can be freely rotated eccentrically inside the through hole 118.

  When the rotor 102 is inserted into the stator 104, the outer peripheral wall 120 of the rotor 102 and the inner peripheral wall 116 of the stator 104 are in close contact with each other at the tangent line therebetween, and the inner peripheral wall 116 of the stator 104 and the outer peripheral wall 120 of the rotor 102 are A fluid conveyance path 122 (cavity) is formed between the two. The fluid conveyance path 122 extends in a spiral shape in the longitudinal direction of the stator 104 and the rotor 102.

  When the rotor 102 is rotated in the through hole 118 of the stator 104, the fluid conveyance path 122 advances in the longitudinal direction of the stator 104 while rotating in the stator 104. Therefore, when the rotor 102 is rotated, fluid is sucked into the fluid conveyance path 122 from one end side of the stator 104, and is transferred toward the other end side of the stator 104 while being confined in the fluid conveyance path 122. It is possible to discharge at the other end side of the stator 104. The uniaxial eccentric screw pump mechanism 100 of the present embodiment is used by rotating the rotor 102 in the forward direction, and pumps the food constituent material (fluid) sucked from the second opening 112, from the first opening 110. It is possible to discharge.

  The power transmission mechanism 108 is for transmitting power from the drive unit 124 to the rotor 102 described above. The power transmission mechanism 108 includes a power transmission unit 126 and an eccentric rotation unit 128. The power transmission unit 126 is provided on one end side of the casing 106 in the longitudinal direction. Further, the eccentric rotating part 128 is provided in the intermediate part 114. The eccentric rotating part 128 is a part that connects the power transmission part 126 and the rotor 102 so that power can be transmitted. The eccentric rotating part 128 includes a connecting shaft 148 constituted by a conventionally known coupling rod, screw rod, or the like. Therefore, the eccentric rotating unit 128 can transmit the rotational power generated by operating the driving machine 124 to the rotor 102 and rotate the rotor 102 eccentrically.

  As shown in FIG.1 (b), the inner layer foodstuff pressure feeding apparatus 22 mentioned above is installed substantially horizontal. A discharge portion 40, which will be described in detail later, is connected to the first opening 110 used for discharging the inner layer food by piping. The second opening 112 is connected to the inner layer food storage tank 24 installed above. The inner layer food storage tank 24 is a funnel-shaped container (hopper) for storing the inner layer food, and supplies the inner layer food stored in the inner layer from the discharge port 24a provided at the lower part toward the second opening 112. be able to. Moreover, the stirring blade of the stirring apparatus 26 is inserted into the inner layer food storage tank 24 from above. Therefore, by operating the stirring device 26, it is possible to prevent sedimentation of the inner layer food stored in the inner layer food storage tank 24, and to obtain a substantially uniform composition throughout the tank.

  The outer layer food supply unit 30 is for supplying the outer layer food forming the multilayer food to the discharge unit 40. As shown in FIGS. 1A and 1B, the outer layer food supply unit 30 includes an outer layer food feeding device 32 capable of pumping the outer layer food and an outer layer food storage tank 34. The outer layer food pressure feeding device 32 is constituted by a rotary positive displacement pump. The outer layer food pressure feeding device 32 includes a pump mechanism portion 35 including a uniaxial eccentric screw pump mechanism 200, a drive portion 36, and a connecting portion 38.

  As shown in FIG. 2B, the pump mechanism unit 35 is configured to accommodate a rotor 202 and a stator 204 inside a casing 201. The main configurations of the uniaxial eccentric screw pump mechanism 200 and the rotor 202 and stator 204 constituting the uniaxial eccentric screw pump mechanism 200 are the same as those of the uniaxial eccentric screw pump mechanism 100, rotor 102, and stator 104 described above.

  That is, the uniaxial eccentric screw pump mechanism 200 is formed by inserting the rotor 202 through the stator 204. The rotor 202 is constituted by a metal shaft body having a single-stage or multi-stage female screw shape with n-1 strips (one strip in the present embodiment). The stator 204 is a cylindrical body formed of an elastic body, resin, or the like, and has a single-stage or multi-stage female screw shape with n lines (two lines in this embodiment) inside. The rotor 202 is inserted through a through hole 206 formed in the stator 204 and can be freely eccentrically rotated inside the through hole 206. Further, by inserting the rotor 202 into the stator 204, a spiral fluid conveyance path 208 (cavity) is formed. The uniaxial eccentric screw pump mechanism 200 can advance the fluid conveyance path 208 in the longitudinal direction of the stator 204 by rotating the rotor 202 inside the stator 204.

  Further, the rotor 202 is connected to the rod 212 via a connecting portion 210 constituted by a conventionally known coupling rod, screw rod, or the like. As shown in FIG. 1, the rod 212 is connected to the drive shaft of the drive machine 214. Therefore, the rotor 202 can be eccentrically rotated by operating the drive unit 214. A stirring blade 216 is attached to an intermediate portion of the rod 212.

  The pump mechanism 35 described above is disposed directly below the outer layer food storage tank 34. The outer layer food storage tank 34 is a funnel-shaped container (hopper) for storing outer layer food, and a pump mechanism 35 is connected to a discharge port 34a provided in the lower part. Thereby, the outer layer food stored in the outer layer food storage tank 34 can be sequentially supplied toward the pump mechanism unit 35. The rod 212 is installed so as to penetrate the outer layer food storage tank 34 in the vertical direction, and the stirring blade 216 attached to the intermediate portion is located in the outer layer food storage tank 34. Therefore, when the drive unit 214 is operated to rotate the rotor 202, the stirring blade 216 rotates in the outer layer food storage tank 34, and precipitation of the stored outer layer food can be prevented.

  The inner layer food supply unit 20 and the outer layer food supply unit 30 described above are connected to the discharge unit 40. The discharge unit 40 is for forming a multilayer food by discharging the inner layer food and the outer layer food fed from the inner layer food supply unit 20 and the outer layer food supply unit 30. As shown in FIG. 4, the discharge unit 40 includes a number of discharge nozzles 42 and includes a discharge unit 50 that incorporates an inner layer food channel 44 and an outer layer food channel 46 as shown in FIG. 3.

  As shown in FIG. 4D, the discharge nozzle 42 is configured so that the inner layer food discharge cylinder 52 for discharging the inner layer food is substantially concentric inside the outer layer food discharge cylinder 54 for discharging the outer layer food. It has a double pipe structure.

  The inner-layer food channel 44 and the outer-layer food channel 46 are generally branched as shown in FIG. That is, the inner-layer food channel 44 and the outer-layer food channel 46 are branched stepwise from the upstream side to the downstream side as shown in a so-called tournament table. The inner layer food channel 44 and the outer layer food channel 46 are branched in multiple lines toward the end portions, and the inner layer food discharge cylinder 52 and the outer layer food discharge cylinder 54 of the discharge nozzle 42 are connected to the respective end portions. Yes.

  The discharge unit 40 may be configured such that the inner layer food channel 44 and the outer layer food channel 46 are formed by piping, and the discharge nozzle 42 is connected to the end thereof, but in this embodiment, as shown in FIG. A structure in which an inner layer food channel 44 and an outer layer food channel 46 are formed by combining a plurality of (in this embodiment, five) plates 60 having holes or grooves formed therein, and the discharge nozzle 42 is connected to these. It is said that. Specifically, the discharge unit 40 is formed by overlapping five plates 60 including the first plate 60a to the fifth plate 60e from the upper side to the lower side. In the first plate 60a to the fifth plate 60e, holes or grooves constituting the inner layer food channel 44 and the outer layer food channel 46 are formed.

  More specifically, as shown in FIG. 3, the inner layer food material flow path 44 is classified into first component 44a to fifth component 44e, and grooves or holes corresponding to the components 44a to 44e are formed in the first plate 60a. The inner layer food material flow path 44 is formed by forming the fifth plate 60e and combining them. Further, the outer layer food channel 46 is classified into the first component 46a to the fifth component 46e, and grooves or holes corresponding to the components 46a to 46e are formed in the first plate 60a to the fifth plate 60e and combined. Thereby, the outer layer food material flow path 46 is formed. Further, the first plate 60 a is provided with an inner layer connection portion 56 connected to the inner layer food supply unit 20 and an outer layer connection portion 58 connected to the outer layer food supply unit 30.

  The configuration of each plate 60 will be described in detail. As shown in FIG. 4B, an outer layer connection portion 58 is formed at a substantially central portion on the top surface side of the first plate 60a. As shown in FIG. 4 (f), the first plate 60 a is formed with a vertical hole 46 a 1 forming the first component 46 a of the outer layer food material channel 46 so as to communicate with the outer layer connection portion 58. Moreover, the lateral groove 46a2 which makes the 1st structure part 46a is formed in the back surface side of the 1st plate 60a. The lateral groove 46a2 communicates with the vertical hole 46a1, and is formed so as to extend symmetrically in the longitudinal direction of the first plate 60a with the communication position with the vertical hole 46a1 as a boundary.

  Moreover, as shown in FIG.4 (b), the four inner layer connection parts 56 are provided in the top | upper surface side of the 1st plate 60a, and the inner layer foodstuff flow path 44 is connected to each. As shown in FIG. 4 (f), in a state where the first plate 60a is viewed in plan, the center line L1 extending in the length direction (longitudinal direction) of the first plate 60a and the center extending in the width direction (short direction). When the line L2 is assumed and four regions partitioned by the center lines L1 and L2 are assumed, the inner layer connection portion 56 and the inner layer food channel 44 are provided for each region. That is, the first component 44 a that forms the inner layer food channel 44 is provided in each of the four regions. The second plate 60b to the fifth plate 60e arranged below the first plate 60a also have the second component 44b to the second component 44b of the inner layer food flow channel 44 at positions corresponding to the four regions described above. A hole or groove corresponding to the fifth component 44e is formed.

  In the first plate 60a, a vertical hole 44a1 and a horizontal groove 44a2 are formed as holes and grooves forming the first component 44a of the inner layer food flow path 44. The vertical hole 44a1 is a hole that communicates with the inner layer connecting portion 56 and extends from the top surface side to the bottom surface side of the first plate 60a. The lateral groove 44a2 is a groove extending in the longitudinal direction of the first plate 60a on the back surface side of the first plate 60a. The vertical groove 44a1 communicates with a substantially central portion of the horizontal groove 44a2.

  As shown in FIG. 4 (g), the second plate 60b has two vertical holes 46b1 forming the second component 46b of the outer layer food channel 46, and has a symmetrical positional relationship in the longitudinal direction of the second plate 60b. It is formed to become. The vertical hole 46b1 is provided at a position corresponding to both ends of the lateral groove 46a2 formed on the first plate 60a side in a state where the first plate 60a and the second plate 60b are overlapped. Therefore, the 1st component part 46a and the 2nd component part 46b of the outer layer foodstuff flow path 46 can be connected by overlapping the 1st plate 60a and the 2nd plate 60b.

  In addition, eight vertical holes 44b1 forming the second component 44b of the inner layer food channel 44 are formed in the second plate 60b. The vertical holes 44b1 are provided at positions corresponding to both end portions of the lateral grooves 44a2 forming the respective inner layer food flow paths 44 formed in the first plate 60a. Therefore, the 1st component part 44a and the 2nd component part 44b of the inner-layer foodstuff flow path 44 can be connected by overlapping the 1st plate 60a and the 2nd plate 60b.

  As shown in FIG. 4 (h), the third plate 60c is provided with two sets of vertical holes 46c1 and horizontal grooves 46c2 forming the third component 46c of the outer layer food material channel 46. The vertical hole 46c1 and the horizontal groove 46c2 are provided so as to have a symmetrical positional relationship in the longitudinal direction of the third plate 60c. The vertical hole 46c1 is provided at a position communicating with the vertical hole 46b1 formed on the second plate 60b side in a state where the second plate 60b and the third plate 60c are overlapped.

  The third plate 60c is formed with eight sets of vertical holes 44c1 and horizontal grooves 44c2 forming the third component 44c of the inner layer food material channel 44. The vertical holes 44c1 are provided at positions corresponding to the eight vertical holes 44b1 formed in the second plate 60b. Therefore, the vertical holes 44b1 and 44c1 formed in the second plate 60b and the third plate 60c communicate with each other by overlapping the second plate 60b and the third plate 60c. The lateral groove 44c2 is formed on the bottom surface side of the third plate 60c so as to extend in the longitudinal direction of the third plate 60c. The vertical hole 44c1 communicates with the horizontal groove 44c2 at a substantially central portion of the horizontal groove 44c2.

  As shown in FIG. 4I, the fourth plate 60d is formed with four vertical holes 46d1 forming the fourth component 46d of the outer layer food material channel 46. The vertical holes 46d1 are provided at positions corresponding to both ends of the lateral groove 46c2 formed on the third plate 60c side in a state where the third plate 60c and the fourth plate 60d are overlapped. Therefore, by overlapping the third plate 60c and the fourth plate 60d, it is possible to form a flow path that branches each lateral groove 46c2 into two systems. Therefore, the outer layer food material flow path 46 is branched into four systems from the first plate 60a to the fourth plate 60d.

  The fourth plate 60d is formed with 16 vertical holes 44d1 forming the fourth component 44d of the inner layer food flow path 44. The vertical holes 44d1 are provided at positions corresponding to both ends of the eight horizontal grooves 44c2 formed in the third plate 60c. Therefore, by superimposing the third plate 60c and the fourth plate 60d, it is possible to form a flow path that branches each lateral groove 44c into two systems. Therefore, the inner layer food material flow path 44 is branched into 16 systems from the first plate 60a to the fourth plate 60d.

  As shown in FIG. 4 (j), four H-shaped grooves 46e1 forming the fifth component 46e of the outer layer food material channel 46 are formed in the fifth plate 60e. The H-shaped groove 46e1 is a substantially H-shaped groove in plan view. In a state where the fourth plate 60d and the fifth plate 60e are overlapped, the four vertical holes 46d1 formed in the fourth plate 60d are in communication with the substantially central portion of each H-shaped groove 46e1. Further, vertical holes 46e2 communicating with the back side of the fifth plate 60e are provided at the end portions (four corners) of each H-shaped groove 46e. Therefore, by superposing the fourth plate 60d and the fifth plate 60e, it is possible to form flow paths that branch the outer layer food introduced through the vertical holes 46d1 into four systems. Therefore, the outer layer food material can be branched into 16 systems as the entire fifth plate 60e.

  On the back surface side of the fifth plate 60e, the discharge nozzle 42 is attached at a position corresponding to each vertical hole 46e2. Therefore, the outer layer food material introduced through the outer layer connection portion 58 is divided into 16 systems by the outer layer food material channel 46 formed in the first plate 60a to the fifth plate 60e, and the 16 discharge nozzles 42 are used. Can be discharged.

  The sixteen vertical holes 46e2 provided in the fifth plate 60e correspond to the pipe 44e1 forming the fifth component 44e of the inner layer food flow path 44, and the inner layer food discharge cylinder 52 forming the discharge nozzle 42. Is inserted. In addition, each inner layer food material discharge cylinder 52 is in communication with the vertical hole 44d1 formed on the fourth plate 60d side by overlapping the fourth plate 60d and the fifth plate 60e. Therefore, the inner layer food material introduced through the inner layer connection portion 56 is divided into 16 systems by the inner layer food material flow paths 44 formed in the first plate 60a to the fifth plate 60e, and the 16 discharge nozzles 42 are used. Can be discharged.

  As shown by a two-dot chain line in FIG. 1, a base 80 such as a belt conveyor or a work table is installed below the discharge unit 40 described above. Thereby, a multilayer foodstuff can be shape | molded, discharging an outer layer foodstuff and an inner layer foodstuff on a belt conveyor etc. from the discharge part 40. FIG.

  The control means 70 mainly performs operation control of the inner layer food material feeding device 22 and the outer layer food material feeding device 32 described above, and performs pressure control of the inner layer food material and the outer layer food material. Basic operation control of the inner layer food pressure feeding device 22 and the outer layer food pressure feeding device 32 by the control means 70 is as shown in the flowchart shown in FIG. 5 and the timing chart shown in FIG. Specifically, when the operation signal is turned on in step 1, the outer layer food material is started to be pumped by the outer layer food pumping device 32 in step 2. Thereby, in each discharge nozzle 42 provided in the discharge part 40, it discharges downward from the clearance gap formed between the inner layer food material discharge cylinder 52 and the outer layer food material discharge cylinder 54 (outer layer material discharge start process). .

  When it is confirmed in step 3 that the predetermined time t3 has elapsed after the discharge of the outer layer food material is started in step 2, the control flow is advanced to step 4 (inner layer material discharge start process). Here, the predetermined time t3 is set in consideration of various conditions such as the viscosity of the outer layer food and the inner layer food, the discharge speed, the shape of the discharge nozzle 42, the thickness of the outer layer food forming the multilayer food, and the predetermined time t3 depending on the conditions. It is good also as starting discharge of an outer-layer foodstuff and an inner-layer foodstuff simultaneously (t3 = 0) without providing.

  In step 4, the operation of discharging the inner layer food material downward from the inner layer food material discharge cylinder 52 of each discharge nozzle 42 is started while continuing the discharge of the outer layer food material started in step 2 described above. That is, in addition to the discharge of the outer layer food material, the discharge of the inner layer food material is also started from the timing delayed by the predetermined time t3 from the start of the discharge of the outer layer food material in Step 2.

  After it is confirmed in step 4 that the predetermined time t4 has elapsed after starting the ejection of the inner layer food material, the control flow proceeds to step 6. In step 6, the rotation direction of the rotor 102 of the inner layer food pressure feeding device 22 is switched to a direction opposite to that during the discharge of the inner layer food material for a predetermined time t5. When the predetermined time t5 elapses, the control flow proceeds to step 7 and the rotation of the rotor 102 is stopped (steps 6 to 7: inner layer material discharge stopping step).

  On the other hand, the outer layer food pressure feeding device 32 continues the discharge of the outer layer food material until it is confirmed that the predetermined time t1 has elapsed after the start of the discharge of the outer layer food material in Step 8. When it is confirmed in step 8 that the predetermined time t1 has elapsed, the control flow proceeds to step 9. In step 9, the rotation direction of the rotor 202 provided in the outer layer food pressure feeding device 32 is switched to a direction opposite to that during discharge of the outer layer food material for a predetermined time t <b> 2. When the predetermined time t2 has elapsed, the control flow is advanced to step 10, the rotation of the rotor 202 is stopped, and a series of control flow is completed (steps 9 to 10: outer layer material discharge stopping step).

  In the multilayer food manufacturing apparatus 10 of the present embodiment described above, multilayer food can be manufactured using foods having viscosity such as a high-viscosity liquid material as the inner layer food and the outer layer food. Therefore, according to the multilayer food manufacturing apparatus 10 of this embodiment, it is possible to manufacture a multilayer food material in which the outer layer food material is formed of a viscous food material. In particular, according to the multi-layer food manufacturing apparatus 10, a food material having a viscosity equal to or lower than the viscosity of the inner layer food material can be used as the outer layer food material. Therefore, according to the multilayer food manufacturing apparatus 10, the outer layer food material that cannot be manufactured by the prior art packaged product manufacturing apparatus or the like is manufactured with a lower viscosity food material than the inner layer food material. It becomes possible.

  Moreover, in the multilayer food manufacturing apparatus 10, what was equipped with the uniaxial eccentric screw pump mechanism 100,200 as the inner layer foodstuff feeding apparatus 22 and the outer layer foodstuff feeding apparatus 32 is employ | adopted. Therefore, the pressure-feeding state of the inner layer food material and the outer layer food material can be accurately controlled, and the inner layer food material and the outer layer food material can be discharged at an appropriate amount and timing in manufacturing the multilayer food. Therefore, according to the multilayer food manufacturing apparatus 10, the manufacturing quality of the multilayer food can be further improved.

  In addition, the uniaxial eccentric screw pump mechanisms 100 and 200 constituting the inner layer food pressure feeding device 22 and the outer layer food pressure feeding device 32 both adjust the rotation direction of the rotors 102 and 202 to change the flow direction of the inner layer food material and the outer layer food material. It is possible to switch appropriately. Therefore, even if low-viscosity foods are used as the inner layer food and the outer layer food, the rotors 102 and 202 are reversely rotated when pumping of the respective foods is stopped, and the liquid dripping unexpectedly and accompanying the liquid dripping It is possible to prevent deterioration of the quality of the multilayer food. In addition, the uniaxial eccentric screw pump mechanisms 100 and 200 constituting the inner layer food pressure feeding device 22 and the outer layer food pressure feeding device 32 have a very simple device configuration. This makes it possible to reduce the manufacturing cost of the multilayer food manufacturing apparatus 10 and improve the maintenance characteristics.

  The multilayer food manufacturing apparatus 10 includes a plurality of discharge nozzles 42 (16 in this embodiment), and the inner layer food channel 44 and the outer layer food channel 46 are branched into a plurality of systems. Therefore, the inner layer food material and the outer layer food material fed by the inner layer food material feeding device 22 and the outer layer food material feeding device 32 are distributed to the plurality of discharge nozzles 42 substantially evenly via the inner layer food channel 44 and the outer layer food channel 46. It becomes possible. Therefore, according to the multilayer food manufacturing apparatus 10, multilayer foods of the same quality can be mass-produced.

  In the multilayer food manufacturing apparatus 10, since the inner layer food pumping device 22 and the outer layer food pumping device 32 include the uniaxial eccentric screw pump mechanisms 100 and 200, the discharge start and end of the inner layer food and the outer layer food are performed. Can be controlled accurately. Therefore, as described above, after the start of feeding of the outer layer food material by the outer layer food material feeding device 32, the inner layer food material feeding device 22 starts feeding the inner layer food material at a timing after a predetermined time t3, and the outer layer food material feeding device 32 feeds the outer layer food material. It is possible to stably produce a high quality multi-layer food by ending the feeding of the inner layer food by the inner layer food feeding device 22 at a timing that is a predetermined time before the time t1 from the start to the end of the feeding. It becomes.

  In addition, the timing chart which concerns on FIG. 6 mentioned above only showed an example of operation | movement of the multilayer foodstuff manufacturing apparatus 10, and can be changed suitably. In addition, the multilayer food manufacturing apparatus 10 may have a configuration in which a lifting mechanism is provided in the discharge unit 40, and the operation of the lifting mechanism and the discharge of the outer layer food and the inner layer food may be controlled in conjunction with each other. That is, for example, as shown in the timing charts of FIGS. 7A to 7C, the discharge timing of the outer layer food and the inner layer food is determined in consideration of the characteristics such as the viscosity of the outer layer food or the inner layer food used for forming the multilayer food. The ejection unit 40 can be moved up and down at an appropriate timing as a reference.

  Specifically, in the example shown in FIG. 7A, prior to the discharge of the outer layer food and the inner layer food, the discharge unit 40 rises from the standby position, moves to a predetermined position, and then drops to the discharge start position. . When the discharge unit 40 reaches the discharge start position, the outer layer food material feeding device 32 starts to discharge the outer layer food material. After a predetermined time has elapsed, the inner layer food material feeding device 22 starts to discharge the inner layer food material, and the discharge unit 40 starts to move upward. When it is time to complete the ejection of the inner layer food material, the rotor 102 of the inner layer food material feeding device 22 is reversely rotated for a predetermined time. Thereby, the discharge of the inner layer food material is completed. Thereafter, when the timing for completing the discharge of the outer layer food material is reached, the rotor 202 of the outer layer food material pressure feeding device 22 is reversely rotated for a predetermined time. Thereby, the discharge of the outer layer food material is completed. After a while after the outer layer foodstuff has been pumped, the discharge unit 40 stops the upward movement, and returns to the standby position after a predetermined standby time.

  The example shown in FIG. 7B is substantially the same as the operation according to FIG. 7A described above, but after the outer layer food material is discharged by the outer layer food material pressure device 32, the rotor 202 of the outer layer food material pressure device 22 is finished. The difference is that the reverse rotation timing is delayed until a time point after the completion of the upward movement of the discharge unit 40. 7C is generally the same as the operation according to FIG. 7A described above, but after the outer layer food material is discharged by the outer layer food material pressure device 32, the rotor 202 of the outer layer food material pressure device 22 is finished. The timing of ending the reverse rotation is different in that it is delayed to a timing slightly before the timing at which the upward movement of the discharge unit 40 is completed. The example shown in FIG. 7C is also different from the operation according to FIG. 7A in that the timing of starting the discharge of the inner layer food is set before the timing of starting the upward movement of the discharge unit 40.

  The multi-layer food manufacturing apparatus 10 described above is for manufacturing two layers of food, an inner layer and an outer layer, but the present invention is not limited to this, and it is possible to manufacture a multi-layer food. It is. Specifically, the discharge nozzle 42 may have a multilayer structure so that different foods can be discharged from each layer of the discharge nozzle 42. In other words, either or both of the inner-layer food discharge cylinder 52 is made into a multiple cylinder in order to achieve a multi-layered inner-layer food and the outer-layer food discharge cylinder 54 is made into a multi-cylinder in order to have a multilayered outer-layer food. As a result, it is possible to produce a multilayered food material that is further multilayered. In addition, when multiplexing the inner layer food material discharge cylinder 52 and the outer layer food material discharge cylinder 54, in addition to the inner layer food material channel 44 and the outer layer food material channel 46, each of the inner layer food material supply unit 20 and the outer layer food material supply unit 30 is also provided. By providing each food separately, it is possible to smoothly supply the necessary food to each layer of the multilayered inner layer food discharge cylinder 52 and outer layer food discharge cylinder 54.

  The above-described method for producing a multilayer food product (multi-layer product) is merely one embodiment of the present invention, and may be produced by another production method using the multilayer food production device 10 (multi-layer product production device). Specifically, as shown in the timing chart of FIG. 9A, after starting the pumping by the outer layer food pumping device 32, the outer layer food (outer layer material) is discharged from the discharge nozzle 42 without stopping. In parallel with this, the inner layer food material feeding device 22 is operated and stopped at every predetermined timing, and the inner layer food material (inner layer material) is discharged from the discharge nozzle 42. By doing in this way, it becomes possible to manufacture a multilayer product by intermittently discharging the inner layer material in a state where the outer layer food material is continuously discharged. Therefore, according to the method for producing a multilayer food according to the timing chart shown in FIG. 9A, the production speed of the multilayer food is significantly higher than when the discharge of the outer layer food is stopped each time one multilayer food is produced. It is possible to increase the speed.

  In addition, in this way, when the multilayer food manufacturing method is employed in which the outer layer food is discharged continuously while the outer layer food is discharged continuously, the outer layer food is dropped in a bowl shape or a spherical shape. 9 (b), it is possible to produce a multi-layer food having a spherical shape in which the inner layer food is included in the outer layer food or a bowl-shaped shape as shown in FIG. 9 (b). In the case where the viscosity of the outer layer food is higher than that described above, the form in which the inner layer food is included at predetermined intervals in the continuously formed outer layer food as shown in FIG. 9C. Multi-layer food can be manufactured. When a multilayer food is manufactured in the form as shown in FIG. 9C, the outer layer food may be cut and decomposed at an intermediate portion where the inner layer food is not included.

  As a modification of the method for producing a multilayer food (multilayer product) using the multilayer food production apparatus 10 (multilayer product production apparatus), for example, a production method according to the timing chart shown in FIG. Specifically, as shown in FIG. 10A, the discharge of the outer layer food material (outer layer material) and the discharge start and discharge stop of the inner layer food material (inner layer material) in the discharge nozzle 42 may be performed simultaneously. According to such a manufacturing method, as shown in FIGS. 10B and 10C, a roll-shaped form in which the outer periphery of the inner-layer food serving as a core is wound by the outer-layer food and the end of the inner-layer food is exposed. Can be easily produced.

  Moreover, the manufacturing method of the multilayer product (multilayer food) of the above-described embodiment includes an outer layer material discharge start process (step 2) and an inner layer material discharge start process as shown in the control flow shown in FIG. 5 and the schematic diagram in FIG. (Step 4) An example in which each process of the inner layer material discharge stop process (Step 6 to Step 7) and the outer layer material discharge stop process (Steps 9 to 10) is sequentially performed is shown. What added the process further may be used. Specifically, as schematically shown in FIG. 12, after the outer layer material discharge start process and before the inner layer material discharge start process, the rotor 102 of the inner layer material pumping device 22 is set to discharge the inner layer material. Can be provided with an outer layer material suction step that operates in the reverse direction by a predetermined amount.

  By providing the outer layer material suction step described above, after the outer layer material discharge start step, the outer layer material discharged from the outer layer material discharge tube 54 of the discharge nozzle 42 and adhering to the tip portion is inside the inner layer material discharge tube 52. Sucked into. Therefore, before the inner layer material discharge start step, some of the outer layer material is filled in the tip portion of the inner layer material discharge cylinder 52. In such a state, when the manufacturing process shifts from the outer layer material suction process to the inner layer material discharge start process, the inner layer material is discharged after the outer layer material filled in the tip portion of the inner layer material discharge cylinder 52 is discharged. It will be. Therefore, the multilayer product (multilayer food) manufactured in this way has a structure in which the lower part of the inner layer material is reinforced by the outer layer food material discharged from the inner layer material discharge cylinder 52 immediately after the start of the inner layer material discharge start process. Become. Thereby, it becomes possible to contribute to improvement in yield by suppressing manufacturing defects such as leakage of the inner layer material from the bottom side of the multilayer product due to the influence of the weight of the inner layer material and the like.

  In the multilayer food manufacturing apparatus 10 (multilayer product manufacturing apparatus) described above, the inner layer food discharge cylinder 52 and the outer layer food discharge cylinder 54 are provided as the discharge nozzle 42, and the central portion of the discharge area of the outer layer food formed in an annular shape Although the example in which the discharge region of the inner layer food material is formed in a circular shape is exemplified, the present invention is not limited to this. Specifically, like the discharge nozzle 142 shown in FIG. 13, in addition to the inner layer food discharge cylinder 152 and the outer layer food discharge cylinder 154 corresponding to the inner layer food discharge cylinder 52 and the outer layer food discharge cylinder 54, the inner layer food discharge cylinder 152. It is possible to provide an inner diameter side outer layer food material discharge cylinder 156 on the inner side and a central member 158 on the inner side of the inner diameter side outer layer food material discharge cylinder 156. By adopting such a configuration, the outer layer food material is discharged from the inner layer food material discharge tube 152 and the outer layer food material discharge tube 154 and between the inner diameter side outer layer food material discharge tube 156 and the central member 158 while being formed by these. The inner layer food material can be discharged in an annular shape inside the outer layer food material discharge region. Thereby, it becomes possible to discharge | release an inner layer food material cyclically | annularly like an outer layer food material inside the outer layer food material discharged in the donut shape.

  The configuration of the discharge nozzle 142 described above will be described in more detail. The outer layer food material discharge cylinder 154 has a through-hole 154a penetrating from the base end side (one end side) of the discharge nozzle 142 toward the tip end side (the other end side). A cylindrical member having a cylindrical portion 154b and a flange portion 154c bulging radially outward on the base end side is provided. Further, a first connecting portion 154d is formed in the peripheral portion of the flange portion 154c so as to penetrate in the thickness direction (radial direction).

  The inner layer food material discharge cylinder 152 includes a cylindrical portion 152b having a through hole 152a penetrating from the proximal end side (one end side) to the distal end side (the other end side) of the discharge nozzle 142, and radially outward on the proximal end side. And a bulging flange portion 152c. The cylindrical portion 152b is sized to fit within the through hole 154a of the outer layer food material discharge cylinder 154. Moreover, the cylindrical part 152b has the step part 152e in the boundary vicinity with the flange part 152c, and the outer diameter of the part of the front end side rather than the step part 152e is smaller than the outer diameter of the part of the base end side. . Therefore, when the inner-layer food discharge cylinder 152 is inserted into the through-hole 154a of the outer-layer food discharge cylinder 154, an annular flow path (hereinafter referred to as an outer-layer food material) is passed between the inner-layer food discharge cylinder 152 and the outer-layer food discharge cylinder 154. , Also referred to as “outer ring flow path 153”). Further, a second connection portion 152d is formed in the circumferential portion of the flange portion 152c so as to penetrate in the thickness direction (radial direction).

  The outer ring flow path 153 communicates with the first connection portion 154d in the assembled state of the discharge nozzle 142. Therefore, the outer layer food material can be discharged through the outer ring flow path 153 by supplying the outer layer food material to the first connection portion 154d. Further, in a state where the inner layer food material discharge cylinder 152 is inserted into the outer layer food material discharge cylinder 154 until the flange portions 152c and 154c come into contact with each other, the distal end portion of the cylindrical portion 154b discharges slightly from the distal end portion of the cylindrical portion 152b. It is located inside the nozzle 142 (base end side). Therefore, the outer ring flow path 153 has an expanded portion 153 a that extends radially inward (on the inner layer food material discharge cylinder 152 side) at the distal end portion of the discharge nozzle 142.

  The inner diameter side outer layer food material discharge cylinder 156 includes a cylindrical portion 156b having a through hole 156a and a flange portion 156c bulging radially outward on the proximal end side. The cylindrical portion 156 b is sized to fit within the through hole 152 a of the inner layer food material discharge cylinder 152. Further, a step portion 156e is formed in the vicinity of the boundary between the tubular portion 156b and the flange portion 156c, and the outer diameter of the portion on the distal end side from the step portion 156e is smaller than the outer diameter of the portion on the proximal end side. Yes. Therefore, when the inner diameter side outer layer food discharge cylinder 156 is inserted into the through hole 152 a of the inner layer food discharge cylinder 152, an annular layer for passing the inner layer food material between the inner layer food discharge cylinder 152 and the inner diameter side outer layer food discharge cylinder 156. A flow path (hereinafter also referred to as “middle ring flow path 155”) is formed. Further, a third connecting portion 156d is formed in the peripheral portion of the flange portion 156c so as to penetrate in the thickness direction (radial direction).

  The middle ring channel 155 communicates with the second connection portion 152d in the assembled state of the discharge nozzle 142. The middle ring channel 155 merges with the expansion portion 153 a of the outer ring channel 153 described above on the tip side of the discharge nozzle 142. Therefore, by supplying the outer layer food material to the second connection portion 152d, the layer food material can be discharged into the outer layer food material discharge region in the outer ring channel 153 via the middle ring channel 155.

  The central member 158 is a member having a substantially T-shaped cross section, and has a columnar columnar portion 158a and a flange portion 158b provided on the proximal end side thereof. The columnar portion 158 a is a portion inserted into the through hole 156 a of the inner diameter side outer layer food material discharge cylinder 156. A step portion 158c is formed in the vicinity of the boundary between the columnar portion 158a and the flange portion 158b, and the outer diameter is smaller at the distal end portion of the discharge nozzle 142 than the step portion 156e. ing. Therefore, when the columnar portion 158a is inserted into the through-hole 156a, an annular flow channel (hereinafter also referred to as “inner ring flow channel 157”) for allowing the outer layer food material to pass between the inner diameter side outer layer food material discharge cylinder 156 and the central member 158. ) Is formed. The inner ring channel 157 is formed at a position adjacent to the inner ring channel 155 described above on the radially inner side of the discharge nozzle 142. The above-described third connection portion 156d communicates with the inner annular flow path 157.

  A discharge nozzle 142 as described above is provided in place of the discharge nozzle 42, and a pipe (not shown) that can supply the outer layer food fed by the outer layer food pressure feeding device 32 in two branches is provided in the first connection portion 154d and the first connection portion 154d. The connection is made to the three connecting portions 156d. Moreover, the inner layer foodstuff pressure feeding apparatus 22 is connected with respect to the 2nd connection part 152d. As a result, the outer layer food material is discharged through the outer ring flow path 153 communicated with the first connection portion 154d and the inner ring flow path 157 communicated with the third connection portion 156d, and the inner layer is formed through the middle ring flow path 155 communicated with the second connection portion 152d. Ingredients can be discharged. Therefore, by using such a discharge nozzle 142 and discharging the outer layer food and the inner layer food in accordance with the control flow shown in FIG. 5, as shown in FIGS. 13B and 13C, the donut-shaped outer layer food is obtained. In addition, it is possible to produce a multilayer food product in which the inner layer food material is encapsulated in a ring shape.

  In the above modification, the example in which the outer layer food material can be pumped by the single outer layer food material pumping device 32 with respect to the first connection portion 154 and the third connection portion 156d is shown, but the present invention is limited to this. It is good also as a structure which connected another outer layer foodstuff pressure feeding apparatus 32 and 32 for every 1st connection part 154 and 3rd connection part 156d. Further, in such a configuration, the outer layer food material supplied to the outer ring flow channel 153 via the first connection portion 154 and the outer layer food material supplied to the inner ring flow channel 157 via the third connection portion 157 It is also possible to configure with another food material. By doing in this way, it becomes possible to manufacture the multilayer foodstuff which was rich in the variation as shown in FIG.13 (d).

≪Examples as multilayer confectionery manufacturing equipment and manufacturing method≫
The multilayer food manufacturing apparatus 10 described above can be used for manufacturing a confectionery such as a bun, for example. More specifically, a low-viscosity food material such as whipped cream or dissolved chocolate can be supplied as an outer layer food material, and a sauce such as chocolate or jam can be supplied as an inner layer food material. In the multilayer food manufacturing apparatus 10, in addition to making the outer layer food material harder and higher in viscosity than the inner layer food material as in the prior art, the outer layer food material may be made softer and less viscous than the inner layer food material. Is possible.

≪Examples of bread dough production equipment and production method≫
The multilayer food manufacturing apparatus 10 described above can be used for manufacturing bread dough having a multilayer structure. Specifically, it is possible to produce bread dough using fermented foods such as wheat flour or rye flour as the main ingredient, and foods such as cream, chocolate, and rice cake to be put in the dough as inner layer ingredients. .

≪Examples of ice cream / soft cream manufacturing equipment / method≫
The multilayer food production apparatus 10 described above can be used to produce a multilayered product of ice cream or soft cream. In addition, the multilayer food manufacturing apparatus 10 uses ice cream or soft cream as an outer layer food, and wraps another food that is more viscous and less fluid than ice cream or soft cream such as chocolate or cream as an inner layer food. It can also be used to produce multilayer ice creams or soft ice creams.

≪Examples as artificial how much manufacturing equipment or supplement manufacturing equipment / manufacturing method≫
In recent years, what is referred to as artificially manufactured artificially has been provided to resemble natural how much. Artificial shells are made by gelling sodium alginate or carrageenan to make a membrane (outer layer food) that contains a mixture of carrageenan, gelatin, pectin, salad oil, color material, etc. (inner layer food). It has been configured. In the case of manufacturing an artificial amount, sodium alginate or the like that forms the outer layer ingredients and the above-mentioned mixture that forms the inner layer ingredients are supplied to the multi-layer food production apparatus 10 and, as shown in FIG. A storage tank 90 storing an aqueous solution is provided, and the outer layer food material and the inner layer food material are discharged from the discharge unit 40 toward the storage tank 90. This makes it possible to manufacture an artificial amount.

  Also, supplements containing food supplements such as vitamins, minerals, amino acids, etc., or medicinal ingredients such as herbs (inner layer ingredients) inside the outer membrane (outer layer ingredients), similar to the artificial salmon mentioned above Is provided. Such supplements can also be manufactured using the multi-layer food manufacturing apparatus 10 by the same manufacturing method as the above-mentioned artificial salmon.

  When using a low-viscosity food material as an outer layer food material to the extent that it becomes a bowl-like shape or a spherical shape by dripping, such as the artificial amount described above, the outer layer food material is continuously used as shown in the timing chart of FIG. With the manufacturing method in which the inner layer food material is intermittently discharged while being discharged, the manufacturing speed can be increased.

≪Examples of production equipment and method for raw confectionery etc.≫
The multi-layer food manufacturing apparatus 10 described above uses a dough made from kuzu powder as an outer layer food material, and for manufacturing raw confectionery such as a water bun, a kuzu bun, or a narcissus bun that wraps an inner layer food material such as candy with this dough. Can be used. Moreover, the multilayer food manufacturing apparatus 10 can be used for manufacturing a confectionery formed by wrapping an inner layer food material such as ice cream, chocolate, cream, or rice cake with an outer layer food material made of candy, chocolate, or the like.

  In the case of producing raw confectionery such as water buns with the multi-layer food manufacturing apparatus 10, the dough having viscosity prepared by mixing katsu powder or sugar and heating is prepared in the outer layer food supply unit 30 as the outer layer food, and the outer layer The food material is fed by the food pressure device 32. In addition, food that is the core of raw confectionery such as candy is prepared as an inner layer food in the inner layer food supply unit 20 and is pumped by the inner layer food pumping device 22. By discharging the dough serving as the outer layer food and the koji serving as the inner layer food material at the discharge unit 40 at an appropriate timing in accordance with the control flow described above, a fresh confectionery such as a water bun, a kuzu bun or a narcissus bun can be produced. . Similarly, when manufacturing confectionery wrapped in ice cream or the like with strawberries or chocolate, the outer layer food ingredients are prepared and pumped to the outer food ingredient supply unit 30 and the ice cream or the like constituting the inner food ingredients is used as the inner layer. It can manufacture by preparing in the foodstuff supply part 20 and pumping.

≪Example as potion (coffee food) manufacturing equipment and manufacturing method≫
The multilayer food production apparatus 10 described above is used to produce a portion (coffee food) in which a beverage such as liquid coffee or tea is used as an inner layer food and the inner layer food is wrapped with a water-soluble outer layer food made of collagen or the like. can do. The beverage included as the inner layer food can be premixed with milk, sugar, gum syrup or the like. In addition, the beverage included as the inner layer food material may be a liquid, or may be gelled with collagen or the like in the same manner as the outer layer food material. After the potion thus manufactured is put into a cup or the like, the outer layer food material is dissolved with hot water to make it possible to drink coffee food such as coffee or tea. In the same way as described in the artificial amount or supplement manufacturing apparatus and manufacturing method described in Example 4 above, when the outer layer food can be solidified by contacting with other liquid, the above As in the fourth embodiment, a storage tank 90 (see FIG. 8) is provided, and the outer layer food material and the inner layer food material are discharged from the discharge unit 40 toward the storage tank 90, thereby improving manufacturing quality or facilitating manufacturing. It becomes possible.

≪Examples of chemical manufacturing equipment and manufacturing methods≫
The multilayer food manufacturing apparatus 10 described above can be used for manufacturing a drug in which a liquid or gel-like drug is used as an inner layer food and the inner layer food is wrapped with a water-soluble outer layer food made of collagen or the like. The water-like medicine included as the inner layer food material may be a single kind or a mixture of plural kinds. In the case of using the multi-layered food production apparatus 10 for the production of medicines, a storage tank 90 (see FIG. 8) is provided below the discharge nozzle 42 as described in the fourth embodiment. Alternatively, the outer layer food material and the inner layer food material may be discharged from the discharge unit 40. Thereby, improvement of manufacturing quality or facilitation of manufacturing can be achieved.

≪Examples of manufacturing equipment and manufacturing method for industrial products≫
An apparatus having the same structure and configuration as the multilayer food manufacturing apparatus 10 described above is an apparatus for manufacturing an industrial product other than food, in which an inner layer material is wrapped with an outer layer material (hereinafter referred to as “multilayer product manufacturing apparatus”). 10 ”). In this case, the inner-layer food supply unit 20, the inner-layer food pumping device 22, the inner-layer food channel 44, the inner-layer food discharge cylinder 52, and the like provided for the inner-layer food in the multilayer food manufacturing apparatus 10 are used for the inner-layer material. it can. Further, the outer layer food supply unit 30, the outer layer food pressure feeding device 32, the outer layer food channel 46, the outer layer food discharge cylinder 54, and the like provided for the outer layer food can be used for the outer layer material.

  According to the multilayer product manufacturing apparatus 10 described above, a multilayer product can be manufactured by supplying a material having a viscosity equal to or less than that of the inner layer material as the outer layer material. The multilayer product that can be manufactured by the multilayer product manufacturing apparatus 10 includes a liquid or gel deodorant or fragrance as an inner layer material, which is wrapped in an outer layer material that forms an outer shell, and is made into a spherical or beaded deodorant product or There are various products such as aromatic products, bath products in which inner layer materials such as soap and bathing agents are wrapped with jelly-like outer layer materials and water-soluble outer layer materials.

≪Reference example as manufacturing equipment / manufacturing method for multi-layered confectionery etc. whose outer periphery is wrapped with outer layer material≫
As shown in FIGS. 10B and 10C, a roll that wraps the outer periphery of an inner layer material (inner layer food material) that becomes a core of wrinkles, wrinkles, etc. with outer layer material (outer layer food materials) such as wrinkles and wrinkles. The multilayer product manufacturing apparatus 10 can be used for manufacturing a multilayered confectionery or the like. Specifically, as shown in the timing chart of FIG. 10A, both the inner layer food material feeding device 22 and the outer layer food material feeding device 32 are operated, and the inner layer food material and the outer layer food material are discharged simultaneously from the discharge nozzle 42. In such a discharge state, either one or both of the discharge nozzle 42 and the conveying surface of the conveyor forming the table 80 provided below the discharge nozzle 42 are moved in the horizontal direction. Thereby, the roll-shaped multilayer foodstuff (multilayer product) as shown to FIG.10 (b), (c) can be manufactured.

  In the example shown in FIG. 10B, the multilayer food has a cylindrical shape, but the shape of the discharge nozzle 42 is changed, or the discharge shape of the inner layer food and the outer layer food is changed with respect to the discharge nozzle 42. If the attachment for making it attach etc., the multilayer foodstuff of various shapes can be manufactured. Specifically, if the inner layer food and the outer layer food can be discharged from the discharge nozzle 42 so as to have a flat cross-sectional shape, a flat multilayer food can be manufactured. Further, if the outer layer food material discharge cylinder 54 forming the discharge nozzle 42 has a cross-sectional shape such as a star shape, the outer shape is a star shape or the like, and the multilayer food product has a shape in which the inner layer food material serving as a core is enclosed inside. Can be manufactured.

≪Examples of manufacturing equipment and manufacturing method for multilayer donuts≫
In the multilayer food manufacturing apparatus 10, the above-described discharge nozzle 142 (see FIG. 13A) is adopted, and dough dough composed mainly of flour is supplied to the discharge nozzle 142 as an outer layer food material. By supplying food such as candy, chocolate, or cream to the discharge nozzle 142 as the inner layer food, as shown in FIGS. 13B and 13C, the inside of the ring-shaped outer layer food forming the donut It becomes possible to produce a multilayer food product in which the inner layer food is included in a ring shape along the outer layer food.

  Also, separate outer layer food pressure feeding devices 32, 32 are connected to the first connection part 154 and the third connection part 156d provided for supplying the outer layer food in the discharge nozzle 142, and taste, color, texture, or fragrance As shown in FIG. 13 (d), doughnuts made of different outer layer foodstuffs on the outer diameter side and the inner diameter side as shown in FIG. 13 (d) are supplied to the outer ring channel 153 and the inner ring channel 157. Can be provided.

  The multi-layer food production apparatus (multi-layer product production apparatus) of the present invention is effective for producing multi-layer foods such as confectionery (multi-layer confectionery) formed in a multi-layer structure, bread dough, ice cream, soft cream, artificial salmon and supplements. Can be used. In particular, the outer layer food material can be effectively used in the production of multilayer foods composed of soft food materials having a lower viscosity than the inner layer food material. Moreover, the multilayer product manufacturing apparatus and the multilayer product manufacturing method of the present invention can be effectively used not only for foods but also for manufacturing industrial products.

10 Multi-layer food production equipment (multi-layer product production equipment)
DESCRIPTION OF SYMBOLS 20 Inner-layer food supply part 22 Inner-layer food feeding apparatus 30 Outer-layer food supply part 32 Outer-layer food pumping apparatus 40 Discharge part 42 Discharge nozzle 44 Inner-layer food flow path 46 Outer-layer food flow path 52 Inner-layer food discharge cylinder 54 Outer-layer food discharge cylinder 70 Control means 90 Storage tank 100, 200 Uniaxial eccentric screw pump mechanism 102, 202 Rotor 104, 204 Stator

Claims (16)

A multilayer food production apparatus used for producing a multilayer food product in which a viscous inner layer food is wrapped with a viscous outer layer food,
An inner layer food supply unit comprising an inner layer food feeding device capable of pumping the inner layer food;
An outer layer food supply unit including an outer layer food pumping device capable of pumping the outer layer food;
A discharge unit for discharging the inner layer food and the outer layer food fed from the inner layer food supply unit and the outer layer food supply unit;
The discharge unit includes a discharge nozzle in which an inner layer food discharge tube connected to the inner layer food supply unit is inserted inside an outer layer food discharge tube connected to the outer layer food supply unit,
The inner layer food pressure feeding device and the outer layer food pressure feeding device include a uniaxial eccentric screw pump mechanism having a male screw type rotor that rotates eccentrically upon receiving power and a stator having an inner peripheral surface formed into a female screw type. A multi-layer food manufacturing apparatus, characterized in that there is.   The multi-layer food production according to claim 1, wherein a multi-layer food can be produced by supplying a food having a viscosity equal to or lower than the viscosity of the inner food as the outer food. apparatus. The discharge section includes a plurality of the discharge nozzles, and an inner layer food channel connecting the inner layer food pressure feeding device and the inner layer food discharge tube, and an outer layer food channel connecting the outer layer food pressure feeding device and the outer layer food discharge tube. With
The multilayer food manufacturing apparatus according to claim 1 or 2, wherein the inner layer food channel and the outer layer food channel are branched into a plurality of systems, and the discharge nozzle is connected to an end of each system. Control means for performing pressure control of the inner layer food and the outer layer food;
The control means starts the feeding of the inner layer food by the inner layer food feeding device at a timing after a predetermined time has elapsed after the outer layer food feeding device starts feeding the outer layer food, and finishes the outer layer food feeding by the outer layer food feeding device. The multi-layer food manufacturing apparatus according to any one of claims 1 to 3, wherein the inner-layer food pressure feeding device by the inner-layer food pressure feeding device is terminated at a timing before a predetermined time. Control means for performing pressure control of the inner layer food and the outer layer food;
The rotor of a uniaxial eccentric screw pump mechanism that forms the inner layer food material feeding device and the outer layer food material feeding device is rotated in a direction opposite to that during pressure feeding when the inner layer food material and the outer layer food material are finished being pumped. The multilayer food manufacturing apparatus according to any one of 4. Having a storage tank provided below the discharge nozzle;
The multi-layer food manufacturing apparatus according to claim 1, wherein the multi-layer food discharged from the discharge nozzle can be dropped toward the storage tank.   The multilayer according to any one of claims 1 to 6, wherein the discharge nozzle is capable of discharging the inner layer food in an annular shape inside the discharge region of the outer layer food while discharging the outer layer food in an annular shape. Food production equipment. The discharge nozzle is
An inner diameter side outer layer food discharge cylinder is provided inside the inner layer food discharge cylinder, and a central member is formed inside the inner diameter side outer layer food discharge cylinder to form a non-passing region for the outer layer food.
The multilayer food manufacturing apparatus according to claim 7, wherein an annular channel through which an outer layer food can pass is formed between the inner diameter side outer layer food discharging cylinder and the central member. A multilayer product manufacturing apparatus for use in manufacturing a multilayer product in which a viscous inner layer material is wrapped with a viscous outer layer material,
An inner layer material supply unit including an inner layer material pumping device capable of pumping the inner layer material;
An outer layer material supply unit comprising an outer layer material pumping device capable of pumping the outer layer material;
A discharge part for discharging the inner layer material and the outer layer material pumped from the inner layer material supply part and the outer layer material supply part,
The discharge section includes a discharge nozzle in which an inner layer material discharge cylinder connected to the inner layer material supply section is inserted inside an outer layer material discharge cylinder connected to the outer layer material supply section.
The inner layer material pumping device and the outer layer material pumping device include a uniaxial eccentric screw pump mechanism having a male screw type rotor that rotates eccentrically upon receiving power, and a stator having an inner peripheral surface formed into a female screw type. A multi-layer product manufacturing apparatus characterized by being.   The multi-layer product manufacturing apparatus according to claim 9, wherein the discharge nozzle is capable of discharging the inner layer material in an annular shape inside the discharge region of the outer layer material while discharging the outer layer material in an annular shape. By discharging the inner layer material and the outer layer material from the discharge nozzle in which the inner layer material discharge cylinder for discharging the inner layer material is inserted inside the outer layer material discharge cylinder for discharging the outer layer material, A method for producing a multilayer product comprising an inner layer material having viscosity,
The outer layer material pumping device connected to the outer layer material discharge cylinder, and the inner layer material pumping device connected to the inner layer material discharge cylinder are respectively a male screw type rotor that rotates eccentrically by receiving power, and an inner peripheral surface is a female screw type A uniaxial eccentric screw pump mechanism having a stator formed on
An outer layer material discharge start step of pumping the outer layer material by the outer layer material pumping device and starting discharge of the outer layer material in the discharge nozzle;
After the outer layer material discharge start step, after a predetermined time has elapsed, an inner layer material discharge start step of starting discharge of the inner layer material in the discharge nozzle;
After the inner layer material discharge start step, an inner layer material discharge stop step of stopping the discharge of the inner layer material by the inner layer material pumping device,
A method for producing a multilayer product, comprising: an outer layer material discharge stopping step for stopping discharge of an outer layer material by the outer layer material pumping device after the inner layer material discharge stop step. When stopping the discharge of the inner layer material in the inner layer material discharge stop step, the rotor of the inner layer material pumping device is operated in the direction opposite to the discharge of the inner layer material,
12. The multilayer according to claim 11, wherein when stopping the discharge of the outer layer material in the outer layer material discharge stop step, the rotor of the outer layer material pumping device is operated in a direction opposite to that during the discharge of the outer layer material. Product manufacturing method.   After the outer layer material discharge start step and before the inner layer material discharge start step, the rotor of the inner layer material pumping device is operated in the direction opposite to that during the discharge of the inner layer material, and the outer layer material discharge cylinder The method for producing a multilayer product according to claim 11 or 12, further comprising an outer layer material suction step of sucking the discharged outer layer food material inside the inner layer material discharge cylinder. By discharging the inner layer material and the outer layer material from the discharge nozzle in which the inner layer material discharge cylinder for discharging the inner layer material is inserted inside the outer layer material discharge cylinder for discharging the outer layer material, A method for producing a multilayer product comprising an inner layer material having viscosity,
The outer layer material pumping device connected to the outer layer material discharge cylinder, and the inner layer material pumping device connected to the inner layer material discharge cylinder are respectively a male screw type rotor that rotates eccentrically by receiving power, and an inner peripheral surface is a female screw type A uniaxial eccentric screw pump mechanism having a stator formed on
A method for producing a multilayer product, wherein an inner layer material is intermittently discharged in a state where an outer layer material is discharged from the discharge nozzle. By discharging the inner layer material and the outer layer material from the discharge nozzle in which the inner layer material discharge cylinder for discharging the inner layer material is inserted inside the outer layer material discharge cylinder for discharging the outer layer material, A method for producing a multilayer product comprising an inner layer material having viscosity,
The outer layer material pumping device connected to the outer layer material discharge cylinder, and the inner layer material pumping device connected to the inner layer material discharge cylinder are respectively a male screw type rotor that rotates eccentrically by receiving power, and an inner peripheral surface is a female screw type A uniaxial eccentric screw pump mechanism having a stator formed on
A method for producing a multilayer product, wherein the discharge of the outer layer material and the start and stop of discharge of the inner layer material are simultaneously performed in the discharge nozzle.   The multilayer according to any one of claims 11 to 15, wherein the discharge nozzle discharges the outer layer material in a ring shape and discharges the inner layer material in a ring shape inside the discharge region of the outer layer material. Product manufacturing method.

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