JP3794979B2 - Leakage prevention apparatus and method in food dough discharging apparatus - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a food dough discharging apparatus, and more specifically, prevents food dough from entering and leaking into a gap between a rotating member provided in a discharging apparatus of a packaging machine and a bearing member that pivotally supports the rotating member. It is related with the apparatus which performs.
[0002]
[Prior art]
Conventionally, in so-called wrapping machines that form buns, Chinese buns, or confectionery breads, etc. A discharge device is provided.
[0003]
The discharge device may be provided with a rotating member that rotates in an annular space between the outer cylinder and the inner cylinder, which is a passage for the outer skin material. For example, in Japanese Utility Model Publication No. 60-24157, a rotating ring is provided for discharging a rod-shaped food dough while rotating it. In Japanese Patent Publication No. 4-43606 and Japanese Patent Application Laid-Open No. 2001-33689, a round bar-like stirring member is attached to a rotating member to reinforce the gluten structure such as bread dough that passes through the annular space, and rotates together with the rotating member. Provided. Therefore, the wall surface in the annular space is composed of a wall surface that rotates together with the rotating member and a wall surface that does not rotate (fixed).
[0004]
These rotating members having rotating wall surfaces are in a sliding relationship with adjacent non-rotating wall surfaces, or are pivotally supported and rotated by bearing members other than the wall surface portions with a slight gap.
However, when the food dough of the outer skin material is pumped, the food dough enters the gap between the wall surface of the rotating member and the fixed wall surface due to the pressure, and furthermore, the bearing portion of the rotating member and the gear portion for rotational driving Intrusion may occur. The dough that has entered the gap or gear portion increases the sliding resistance between the rotating member and the bearing member, accelerates the wear of these members, increases the heat generated from the sliding portion, and changes the physical properties of the food dough. It was.
[0005]
In order to prevent intrusion of these doughs, a plurality of spiral grooves 93 are provided on the sliding surface of the bearing member 92 that supports the rotating member 91, and the rotating member 91 is in the direction of arrow N1 (the food dough supply direction in FIG. 8). In some cases, the food dough that attempts to enter the gap is returned to the annular space S indicated by the arrow N2 by rotating counterclockwise as viewed from the side. (See Conventional Example 1 in FIG. 8)
[0006]
In another conventional example, an elastic seal member such as an O-ring 98 or 99 is provided between the rotating member 95 and the sliding bearings 96 and 97, and the food dough is provided between the rotating member 95 and the sliding bearings 96 and 97. Some have prevented the dough from entering the gap. (See conventional example 2 in FIG. 9)
[0007]
[Problems to be solved by the invention]
However, in the above-described conventional configuration, the sliding surface of each member wears early, and it becomes impossible to prevent the cloth from entering the gap between the rotating member and the bearing member. There was a problem that had to be exchanged. In addition, if the food dough has entered the gap or the gear part of the rotating member and the production is continued for a long time, the entire discharge device becomes high temperature, so it must be replaced with a discharge device prepared separately during production. In addition to reducing the production efficiency, there was a risk of burns when replacing the discharge device.
[0008]
[Means for Solving the Problems]
The present invention has been made in view of the above-described problems, and includes an annular space provided between the inner cylinder portion and the outer cylinder portion, and a fixed wall surface and a wall surface that rotates or rotates adjacent thereto. during, those Rutotomoni an annular seal member, the lip of the annular seal member, made so as to be in contact with one or both of the wall which rotates or pivots adjacent thereto and the fixed wall It is.
[0010]
Further, a stirring member is provided in the annular space from a rotating or rotating wall surface.
[0011]
Further, a fixed wall surface and a wall surface that rotates or rotates adjacent to the wall surface are provided in an annular space provided between the inner cylinder portion and the outer cylinder portion, and rotates or rotates with the fixed wall surface. A sealing member for covering between the wall surfaces is provided, and the dough is pressed against the wall surface by feeding food dough into the annular space.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
The configuration of the discharge device 1 will be described with reference to FIG. FIG. 1 is a vertical sectional view of the discharge device 1. The discharge device 1 includes a connection port 31 connected to an inner packaging material supply device (not shown) that supplies the inner packaging material 5 that is food dough, and an outer skin material supply device (not shown) that supplies the outer skin material 6 that is food dough. The upper casing 3 which provided the connected connection port 33 in the side part is provided. The upper casing 3 is provided with a hollow cylindrical inner cylinder portion 35 through which the inner packaging material 5 can pass so as to be connected to the connection port 31. Further, the inner cylinder portion is provided outside the inner cylinder portion 35. An outer cylindrical portion 37 through which the outer skin material 6 can pass is provided in communication with the connection port 33 so as to be substantially concentric with 35.
[0013]
The upper bearing 11 is fitted and fixed to the lower end portion of the outer cylindrical portion 37. Further, a rotating member 15 provided with a round bar 13 on the inner peripheral surface 16 is rotatably supported on the lower side of the upper bearing 11. The lower side of the rotating member 15 is pivotally supported by a lower bearing 17 fixed to the lower casing 7.
[0014]
Further, an annular seal member 2 is fitted on the inner peripheral surface of the outer cylinder portion so as to be movable up and down.
[0015]
Further, the inner packaging material nozzle 21 is screwed and fixed to the lower end portion of the inner cylindrical portion 35 so as to be detachable and replaceable. Further, the outer covering material nozzle 23 is fitted from the lower side of the lower casing 7 so as to be detachable and replaceable so as to surround the inner packaging material nozzle 21, and the set ring 18 is screwed and fixed.
[0016]
The discharge device 1 configured as described above includes an outer peripheral surface (wall surface) of the inner cylinder 8 formed by the inner cylinder portion 35 and the inner packaging material nozzle 21, an outer cylinder portion 37, an annular seal member 2, and a rotating member. 15, an annular space S in which a cross-sectional shape through which the outer skin material 6 is pumped and passed is between the inner peripheral surface (wall surface) of the outer cylinder 9 formed by the bearing 17 and the outer material nozzle 23. It becomes.
[0017]
Then, the inner packaging material 5 (food dough) such as rice cake is supplied from the connection port 31 into the inner cylinder 8 from the inner packaging material supply device, and the outer shell material 6 (food dough) such as bread dough is connected from the outer shell material supply device to the connection port. By supplying the annular space S from 33, the rod-shaped food dough 55 covering the inner packaging material 5 with the outer skin material 6 is continuously discharged from the outer skin material nozzle 23.
[0018]
Next, the configuration and operation of the annular seal member 2 will be described with reference to FIG. The seal member 2 is annular, and its outer peripheral surface is fitted into an inner peripheral surface 37A of the outer cylindrical portion 37 serving as a wall surface of the annular space S with a fit that can be moved up and down. The seal member has a thickness in the radial direction, and is formed with an inclined surface 2A inclined downward from the upper outer peripheral edge toward the inner peripheral edge. A lip 2 </ b> B whose cross-sectional shape forms an acute angle with the inner peripheral edge as a tip is formed at the lower part of the seal member 2. Further, the upper portion of the rotating member 15 has an inclined portion 15 </ b> A inclined downward in the annular space S direction from the vertical wall of the inner peripheral surface 37 </ b> A of the outer cylindrical portion 37. The lip 2B contacts the inclined portion 15A.
[0019]
The seal member 2 is pushed in the flow direction and the radial direction by the pressure of the skin material 6 that is pumped through the annular space when the discharge device 1 discharges the skin material 6, and the lip 2B of the seal member 2 is a rotating member. The 15 inclined portions 15A are pressed against each other.
[0020]
The seal member 2 is formed of an ultrahigh molecular weight polyethylene resin material, and the lip 2 </ b> B is elastically deformed by the pressure of the outer skin material 6 and is in close contact with the rotating member 15. Furthermore, this material has high wear resistance and self-lubricating power and can be used for a long time.
Further, since the seal member can move up and down and is in close contact with the rotary member 15 by pressure from above, even if the seal member is worn, there is no gap between the inclined portion 15A and the lip 2B.
[0021]
As a result, it is possible to suppress the outer shell material 6 being pumped from entering and leaking into the gap T1 between the rotating member 15 and the outer cylindrical portion 37 and the gap T2 between the rotating member 15 and the upper bearing 11. . Therefore, frictional wear between the rotating member 15 and the upper bearing 11 is minimized, and the replacement period for a new member can be made longer than before.
[0022]
Further, even in continuous production over a long period of time, the entry of the fabric into the gaps T1 and T2 is suppressed, and furthermore, the entry of the outer skin material into the gear portion 15B of the rotating member 15 is almost eliminated, so that the discharge device is more than necessary. It is possible to suppress the heat generation. Therefore, the physical properties of the food doughs 5 and 6 discharged from the discharge device 1 in a rod shape can be prevented from being altered by heat.
[0023]
In addition, it is not necessary to replace the discharge device 1 during the production or to disassemble and clean the fabric due to leakage, thereby improving the production efficiency.
[0024]
In order to prevent erroneous insertion of the seal member, a flange 2C may be provided on the outer periphery of the seal member 2.
[0025]
FIG. 3 shows a second embodiment. The seal member 4 is provided with a flange portion 4A having an upper portion fitted into a stepped portion 37B of the outer cylindrical portion 37 and inclined downward from the upper portion. A groove 4C is provided in the vicinity of the upper portion of the lip 4B formed at the lower end.
[0026]
As shown in FIG. 3A, the total length of the seal member 4 in the vertical direction is based on the distance from the upper end surface 37 </ b> C of the stepped portion 37 </ b> B provided on the inner peripheral surface of the outer cylindrical portion 37 to the inclined portion 15 </ b> A of the rotating member 15. It is long. Therefore, as shown in FIG. 3B, the flange portion 4A of the seal member 4 is elastically deformed, and the lip 4B is pressed against and closely contacts the inclined portion 15A of the rotating member 15.
[0027]
Further, the groove 4C provided in the vicinity of the upper portion of the lip 4B facilitates elastic deformation of the lip and can improve the followability of the seal member 4 to the rotating member 15.
[0028]
FIG. 4 shows a third embodiment. The seal member 19 is provided with a flange portion 19B at the lower end portion of a cylindrical body portion 19A, and is formed of silicon rubber.
[0029]
The body 19A of the seal member 19 is curved by fixing the body 19A of the seal member 19 to the stepped portion 37B provided on the inner peripheral surface of the outer cylinder 37 and fitting the rotating member 15 into the upper bearing 11. The flange portion 19B contacts the inner peripheral surface 16 of the rotating member 15 (see FIG. 4B). The seal member 19 and the rotating member 15 can be brought into close contact with each other by the pressure of the outer skin material 6 when the outer skin material 6 passes through the annular space S.
[0030]
The fourth embodiment shown in FIG. 5 is a partial sectional view showing the vicinity of the attached seal member 29. A ring-shaped seal member 29 is fitted into a recess G provided between the wall surface to which the outer cylindrical portion 37 is fixed and the wall surface of the rotating member 65. The seal member 29 has a substantially trapezoidal cross section, and has a seal lip 29A at the apex of the bottom of the substantially trapezoid and a groove 29B in the vicinity of the lip. The substantially trapezoidal oblique side of the seal member 29 is in contact with the inclined surface 37C of the recess G.
The sealing member 29 is pressed into the concave portion G by the pressure feeding of the outer skin material, and the lip 29A is pressed against the inclined surface 37C and the inclined surface 65A, whereby a sealing action is performed.
[0031]
Further, a seal member 27 is provided between the rotating member 65 and the lower bearing 17 below the stirring member 63. The seal member 27 is fitted to the inner peripheral surface 65B of the rotating member 65 so as to be movable up and down, and is provided so that a lip 27A formed at the lower end thereof contacts the inclined portion 17A of the lower bearing 17. .
Therefore, the seal member 27 is pushed in the flow direction and the outer circumferential direction by the pressure of the outer skin material 6 that is pumped through the annular space S. The lip 27A of the seal member 27 comes into contact with the inclined portion 17A of the lower bearing 17.
[0032]
In the embodiment described above, the seal member is provided on the outer peripheral wall surface of the annular space. However, the present invention is not limited to the outer peripheral wall surface, and the seal member may be provided on the inner peripheral wall surface of the annular space. It is. FIG. 6 shows a fifth embodiment in which a seal member is provided on the inner peripheral wall surface.
The bearing 12A is press-fitted inside the inner cylinder portion 85, and the rotary cylinder 14 is rotatably supported on the inner side thereof. Further, a central cylinder 51 that forms a passage for the inner packaging material 5 is concentrically fitted inside the rotary cylinder 14, and an inner packaging nozzle 21 is screwed and fixed to the lower end portion of the central cylinder 51.
[0033]
Then, the sealing member 39 is fitted into a stepped portion 85A provided on the outer peripheral surface of the inner cylindrical portion 85 so as to be movable up and down, and a rotating member 75 in which a plurality of round bars 73 are disposed at the lower end portion of the rotating cylinder 14. Are detachably screwed and fixed. Further, the bearing 12B is press-fitted into the inner peripheral surface of the rotating member 75, and the central cylinder 51 is pivotally supported.
[0034]
The seal member 39 provided in this manner is in close contact with the rotating member 15 due to the pressure flowing through the outer covering material 6, and prevents the outer covering material 6 from entering and leaking into the gap sliding surface between the bearing 12 </ b> A and the rotating cylinder 14. Is possible.
[0035]
The rotation of the seal member 39 is prevented by engaging the pin P fixed to the stepped portion 85A of the inner cylinder portion 85 with the vertical groove 39D provided on the inner peripheral surface of the seal member 39. is there. Further, the upper end portion 85B of the stepped portion 85A prevents the sealing member 39 from being fitted too much.
[0036]
In the embodiment described above, it has been described that the outer skin material is prevented from entering the gap between the rotating member 15 and the upper bearings 11 and 12A. However, the present invention is not limited to this. In this case, by covering the sealing member in the gap between the rotating member 15 and the lower bearings 17 and 12B (see FIGS. 1 and 6), it is possible to prevent the food dough from entering the gap. It is also possible.
[0037]
Moreover, although the rotating member in the present embodiment is described as having a round bar 13 as a stirring member, it is in the shape of a square bar, a plane plate, a curved plate, or other shapes, and the mounting angle is inclined. Thus, the stirring effect on the outer skin material is adjusted. Further, the rotation direction, speed, rotation number, reverse rotation, or reciprocal rotation number of the stirring member are adjusted in consideration of the stirring effect.
[0038]
Further, an example will be described in which a stirring member such as a round bar is not provided in the annular space, and only the wall surface of the rotating member rotates or rotates. As an example in which only the wall surface rotates, for example, in the case where the outer material nozzle 50 provided adjacent to the fixed wall surface 48A rotates as in the sixth embodiment, it rotates with the fixed wall surface 48A. A seal member 49 can be provided between the outer cover material nozzle 50 (see FIG. 8).
[0039]
Moreover, although the material of each sealing member was demonstrated as ultra high molecular polyethylene and silicon rubber, it is not restricted to these materials, It is also possible to select polyacetal, urethane rubber, etc. suitably.
[0040]
【The invention's effect】
According to the present invention, in the means for covering and discharging a plurality of food doughs as a continuous rod-shaped food dough, the food dough is prevented from entering the gap between the rotating member and the bearing, and the food dough is generated by the heat generated by the discharge device. It is possible to prevent alteration of the properties.
[0041]
Further, by preventing the food dough from entering the gap, the wear of the rotating member and the bearing is reduced, and the replacement period of these members can be made longer than before.
[0042]
Further, the present invention facilitates disassembly / assembly cleaning of the discharge device.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram of a discharge device according to a first embodiment of the present invention.
FIG. 2 is an explanatory diagram of a discharge device according to the first embodiment of the present invention.
FIG. 3 is an explanatory diagram of a discharge device according to a second embodiment of the present invention.
FIG. 4 is an explanatory diagram of a discharge device according to a third embodiment of the present invention.
FIG. 5 is an explanatory diagram of a discharge device according to a fourth embodiment of the present invention.
FIG. 6 is an explanatory diagram of a discharge device according to a fifth embodiment of the present invention.
FIG. 7 is an explanatory diagram of a discharge device according to a sixth embodiment of the present invention.
FIG. 8 is an explanatory diagram of a discharge device according to Conventional Example 1;
FIG. 9 is an explanatory diagram of a discharge device of Conventional Example 2.
[Explanation of symbols]
1 Discharge device 2, 4, 19, 27, 29 Sealing member 5 Inner packaging material (food dough)
6 Skin material (food dough)
8 Inner cylinder 9 Outer cylinder 13, 63 Stirring member (round bar)
15, 65, 75 Rotating member P Pin S Annular space T1, T2 Clearance

Claims (3)

An annular space provided between the inner tubular portion and the outer tubular section, between the fixed wall and the wall which rotates or pivots adjacent thereto, Rutotomoni an annular seal member, the annular A leakage preventing device for a food dough discharging apparatus , wherein a lip of a sealing member is in contact with one or both of the fixed wall surface and a wall surface rotating or rotating adjacent to the fixed wall surface . The leakage prevention device for a food dough discharging apparatus according to claim 1, wherein a stirring member is provided in the annular space from a rotating or rotating wall surface. In the annular space provided between the inner cylinder part and the outer cylinder part, a fixed wall surface and a wall surface rotating or rotating adjacent thereto are provided, and the fixed wall surface and the wall surface rotating or rotating are provided. Leakage prevention in a food dough discharging apparatus, characterized in that an annular seal member is provided to cover the space, and the food dough is pressed against the wall surface by pressure feeding the food dough into the annular space. Method.

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