JP4437842B1 - Bean peeling machine - Google Patents

Abstract

The present invention provides a bean peeling apparatus that peels an immersed bean.
A bean peeling apparatus is arranged in parallel and parallel to each other with a gap wide enough to sandwich the beans, and rotates from the top to the bottom with respect to the gap, with the length direction as the axis of rotation. In order to move the first and second rotating bodies of the cylindrical shape and the beans introduced between the gaps from one end side to the other end side of the first and second rotating bodies through the gap A first surface portion extending downwardly from one end side with respect to the rotation axis, and continuously extending from the lower end position of the first surface portion to the other end side and extending parallel to the rotation axis. The base member having the second surface portion and the first rotary body and the second rotary body are rotated so as to come into contact with each other in the vicinity of the height position of the second surface portion, and are peeled off from the beans on the base member. The first skin is drawn into the contact portion with the first rotating body and the second rotating body, and discharged from the base member. Comprising of the rotating rod and the second rotating rod, and a vibration means for vibrating the first rotating rod and the second rotating rod and platform member.
[Selection] Figure 1

Description

  The present invention relates to a bean peeling machine for removing a soaked bean skin.

  In general, the production of tofu is obtained by boiling a process of immersing soybeans in water for a certain period of time, a process of pulverizing the soaked soybeans, a process of boiling soybeans crushed from the soaked soybeans (raw kure). It is performed in the order of separating the resulting product into squeezed soymilk and solids (okara) and fixing the soybean milk with bittern.

  In the production of tofu, when tofu is made from soybeans with skin (thin skin), the taste of tofu deteriorates due to the gummy and astringency contained in the skin. ) May be used. However, manual removal of soybean hulls is a very laborious and time consuming operation and is inefficient, and means for mechanically removing soybean hulls have been proposed. As a means of removing soybean hulls, for example, a method of removing hulls from dried soybeans by friction action by a stirring operation, or a method of removing dried hulls by pressing a pair of rollers with a pair of rollers A removal method (Patent Document 1) and the like are known.

  Moreover, as a means for removing the skin from the soaked soybeans, a method of peeling the skin by a compression action by an elastic roller having a difference in rotational speed (Patent Document 2, Patent Document 3), or a centrifugal separation action by dividing the soaked soybeans in half. There is known a method for removing the skin (Patent Document 4).

JP-A-8-252466 JP 2001-252062 A JP-A-9-313150 JP 2008-199999 A

  However, if the dried soybean skin before immersion is removed, the soybean is oxidized and the flavor is deteriorated. Furthermore, when the dried soybeans from which the skin has been removed are immersed, the umami component (soy protein component) dissolves, leading to a reduction in the taste of tofu. In addition, when removing the skin by the frictional action, the soybeans are scraped off in a dry state, so that the fruits themselves are also scraped, resulting in loss and poor yield.

  The method for removing the peel from the soaked soybean does not cause the above-mentioned problem of peeling the dried soybean. However, the method of Patent Document 2 requires a structure in which immersed soybeans are precipitated in water in order to separate the fruit and skin, and the soybeans are collected therefrom, and the structure is complicated. Furthermore, since the peeled soybean is dipped again, it is dipped more than necessary. In addition, the technique of Patent Document 3 has difficulty in dehulling (see Japanese Patent Application Laid-Open No. 11-243894), and no reference is made to separation of skin and fruit. Moreover, since the apparatus of patent document 4 isolate | separates a skin and a fruit by a centrifuge action, an apparatus becomes large. Therefore, at present, there is no apparatus that has actually been put to practical use as a bean peeling apparatus that peels off soaked soybeans, including the method disclosed in the background art described above.

  Then, the objective of this invention is providing the bean peeling apparatus which peels the skin of the immersed bean by a novel system.

  Moreover, the further objective of this invention is to provide the bean peeling machine which can isolate | separate a bean skin and a fruit.

  In order to achieve the above object, the first structure of the bean peeling machine of the present invention is arranged parallel to and parallel to each other with a gap having a width enough to sandwich the beans, and the length direction is the axis of rotation. Cylindrical first and second rotating bodies that rotate from above to below with respect to the gap, and the first and second rotating bodies through which the beans thrown between the gaps are inserted. A first surface portion extending in the length direction to move from one end side to the other end side, and extending downwardly inclined from the one end side with respect to the rotation shaft, and a lower end position of the first surface portion A base member having a second surface portion extending continuously to the other end side and extending in parallel to the rotation axis; and the first rotating body near a height position of the second surface portion; The base member is rotated so as to be in contact with the base member, and the peel peeled off from the beans on the base member is the first rotation. A first rotating rod that is drawn into the contact portion and discharged from the base member, and rotates in contact with the second rotating body and the base member in the vicinity of the height position of the second surface portion, A second rotating rod for pulling the skin peeled from the beans on the table member into a contact portion with the second rotating body and discharging the peeled material from the table member; and a vibrating means for vibrating the table member. Features.

  The second structure of the bean molting device is the first structure, wherein the first rotating body and the second rotating body are inclined with respect to the horizontal so that the other end side is lower than the one end side. It is characterized by being arranged.

  The third structure of the bean peeling machine is a coil spring, a shaft that is inserted so as to penetrate the inner peripheral side of the coil spring, and is bonded to the coil spring, and a rubber cylinder that covers the outer peripheral side of the coil spring. And a drive motor for rotating the coil spring and rubbing the coil spring against the shaft and the rubber cylinder member.

  Further, the bean sorting device for separating the beans and the peel from the peeled beans and the mixture of the peels is arranged in parallel and parallel to each other with a predetermined gap, and each of the gaps has a length direction as a rotation axis. A cylindrical first rotating body and a second rotating body rotating from top to bottom with respect to the first rotating body and extending in parallel to the first rotating body through the gap between the first rotating body and the first rotating body A first rotating rod that rotates in contact with the bean and pulls the peel peeled from the beans in the gap into the contact portion with the first rotating body and discharges it from the gap; and the second rotating rod in the gap It extends in parallel to the rotating body of the first rotating body, rotates in contact with the second rotating body, and pulls the skin peeled off from the beans in the gap into the contact portion with the second rotating body, from the gap. The second rotating rod to be discharged and the vibration that vibrates the first rotating rod and the second rotating rod. Characterized in that it comprises a means.

  According to the bean peeling machine of the present invention, the immersed bean skin can be reliably peeled off and is practical. In addition, the peeled beans and their peels can be separated, and only the peeled beans can be recovered, eliminating the trouble of manually separating the peels and contributing to efficient bean processing. .

It is a side view which shows the 1st structural example of the bean molting apparatus in this Embodiment. It is a front view which shows the 1st structural example of the bean molting apparatus in this Embodiment. It is a front view which shows the principal part of a bean peeling machine. It is a figure which shows the side surface shape of the stand. It is a figure which shows the state of the soybean in the clearance gap in the 1st structural example. It is a figure which shows the whole structure of the bean peeling apparatus of the 1st structural example attached to the flame | frame. It is a figure which shows the 2nd structural example of the bean molting apparatus in this Embodiment. It is a figure which shows the principal part of the 2nd structural example. It is a figure which shows the state of the soybean in the clearance gap in the 2nd structural example. It is a side view which shows the structural example of a bean sorting apparatus. It is a front view which shows the structural example of a bean sorting apparatus.

  Embodiments of the present invention will be described below with reference to the drawings. However, this embodiment does not limit the technical scope of the present invention.

  FIG.1 and FIG.2 is a figure which shows the 1st structural example of the bean peeling apparatus in this Embodiment, FIG. 1 is a side view, FIG. 2 is a front view. Moreover, FIG. 3 is a front view which shows the principal part of a bean peeling machine. An example of soaking of soaked soybeans will be described. The schematic operation of the first configuration example is as follows. The soybean in the hopper 10 is conveyed by the screw 12 and is put into the gap between the rollers 14 and 16 from one end side in the length direction of the pair of rollers 14 and 16. The soybean hulls thrown into the gap are removed while moving from one end side to the other end side of the rollers 14 and 16 on the table 18 provided in the gap. Further, the removed skin is drawn into the contact portion with the rotating bars 20 and 22 that rotate in contact with the rollers 14 and 16 while the soybean moves on the table 18 and is discharged from the table. The Then, only the soybean from which the skin has been removed proceeds on the table 18 to one end side of the rollers 14 and 16 and is collected in the collection box 24.

  The configuration of the bean peeling machine will be described in more detail. The hopper 10 stores the soaked soybeans. The screw 12 conveys soybeans in the hopper 10 by driving the motor, and drops the soybean in the gap between the rollers 14 and 16. The pair of rollers 14 and 16 is a cylindrical rotating body, arranged in parallel with each other with a gap having a width enough to sandwich the beans, and the length direction as a rotation axis, respectively, from above with respect to the gap. Rotate downward by motor drive. The peripheral surfaces of the rollers 14 and 16 are formed of rubber, and rubber having a predetermined hardness is wound around the peripheral surface of a metal cylinder.

  The width of the gap is the narrowest at the height position of the rotation shafts of the rollers 14 and 16, and the width of the narrowest part is, for example, about 6 mm when applied to soybean molting. The diameters of the rollers 14 and 16 are, for example, about 100 mm. Of course, each dimension can be appropriately changed according to the size and type of beans to be peeled.

  The base 18 is placed so as to be sandwiched between the gap portions, extends in the length direction from one end side of the rollers 14 and 16 to the other end side, and has a surface having a width approximately equal to the width of the gap. One end of the rollers 14 and 16 is an end portion on the side where the soybeans conveyed by the screw 12 fall, and the other end of the rollers 14 and 16 is an end portion on the side where the soybeans from which the skin has been removed are collected. It is.

  FIG. 4 is a diagram showing a side shape of the base 18. The base 18 extends in a downwardly inclined manner from one end side with respect to the rotation axes of the rollers 14 and 16, and continuously extends from the lower end position of the first surface portion 18a to the other end side. And a second surface portion 18b parallel to the rotation axis. The surface portions 18a and 18b correspond to the thickness portion of the base 18 in FIG. The inclined surface of the surface portion 18a preferably extends from the upper side to the lower side of the rotation shaft, and the inclination angle is, for example, about 15 to 30 degrees.

  A vibration motor 30 is provided in connection with the base 18 and vibrates the base 18. In the first configuration example, the vibration motor 30 is provided on the lower side of the base 18, but is not limited to this position, and the mounting position may be a position where the base 18 can vibrate. Instead of the vibration motor 30, other vibration means such as an electromagnetic feeder may be used.

  In this way, vibration is given to the base 18 and, as will be described later, the base 18 is inclined so that the other end side is lower than the one end side. Soybeans move from one end to the other.

  FIG. 5 is a diagram illustrating the state of soybean in the gap in the first configuration example. As shown in FIG. 5 (a), the soybean that has fallen into the gap comes into contact with the peripheral surfaces of the rollers 14 and 16 while moving down in the gap while descending on the surface portion 18a. Rotating movement of the soybeans pulls the side of the soybeans downwards and peels the skin. In FIG. 5, the peeled skin is schematically drawn with emphasis from the fact for explanation. At this time, since the soybean is placed on the table 18 with respect to the downward force applied to the soybean, only the skin is effectively peeled off while the soybean is maintained on the table 18.

  The gap between the rotating shafts of the rollers 14 and 16 has the narrowest width, and the inclined surface of the surface portion 18a crosses the rotating shaft, so that the soybeans descending the inclined surface of the surface portion 18a always pass through the narrowest portion of the gap. As a result, the skin is peeled by reliably contacting the rotating rollers 14 and 16.

  The surface portion 18b extends in parallel to the rotation axis from the lower end position of the inclination of the surface portion 18a. The soybean peeled by the movement of the surface portion 18a moves the surface portion 18b to the other end side.

  The rotary rods 20 and 22 are rod-shaped members having circular cross sections disposed on both sides of the surface portion 18b. The diameters of the rotating rods 20 and 22 are, for example, about 6 mm, which is extremely small compared to the diameters of the rotating bodies 14 and 16 (about 100 mm). The rotating rod 20 is disposed on one side in the width direction of the base portion 18b so as to be in contact with the roller 14, and the rotating rod 22 is disposed on the other side in the width direction of the base portion 18b so as to be in contact with the roller 16.

  The rotating bars 20 and 22 vibrate together with the base 18 due to the vibration of the base 18 driven by the vibration motor 30, and repeat contact and non-contact with the rollers 14 and 16, respectively. Preferably, the rotating rods 20 and 22 are attached to the base 18 so as to have play.

  When the rotating rods 20 and 22 come into contact with the rollers 14 and 16, the rotating rods 20 and 22 also rotate, and as shown in FIG. 5 (b), the skin peeled from soybeans is brought into contact with the rollers 14 and 16. Withdrawn and discharged from above the base 18 to the lower side of the rollers 14 and 16. While the soybean and the peeled skin move on the surface portion 18b of the table 18, at the timing when the rotating bars 20 and 22 are not in contact with the rollers 14 and 16, the peeled skin is caused by vibration. It is guided in the gap between the rotating rods 20 and 22 and the rollers 14 and 16, the skin is sandwiched between the rotating rods 20 and 22 and the rollers 14 and 16 at the timing of contact, and is discharged from the table 18. The discharged skin is collected by the trays 26 and 28. Thus, only the skin can be effectively discharged by the vibration / rotation operation of the rotating rods 20 and 22.

  The collection box 24 is disposed in front of the rollers 14 and 16 on the other end side, and soybeans that have passed through the surface portion 18 b are collected in the collection box 24. The peeled skin is discharged from the table 18 by the action of the rotating bars 20 and 22 while passing through the surface portion 18, so that only the peeled soybean is collected in the collection box 24. .

  FIG. 6 is a diagram showing an overall configuration of the bean peeling machine in the first configuration example attached to the frame. The bean peeling machine is attached to the frame 40 so that the table 18 and further the rotating rollers 14 and 16 are inclined so that the other end side is lower than the one end side. The soybean in the gap also moves from one end side to the other end side due to the vibration by the vibration motor 30, but by tilting the table 18 and the rotating rollers 14 and 16, the soybean in the gap moves from one end side to the other end side. Movement is promoted more.

  FIG. 7 is a diagram illustrating a second configuration example of the bean peeling machine according to the present embodiment, and FIG. 8 is a diagram illustrating a main part of the second configuration example. The bean peeling apparatus in the second configuration example includes a coil spring 50, a shaft 52 that is inserted so as to penetrate the inner peripheral side of the coil spring 50, and a rubber cylinder member 54 that covers the outer peripheral side of the coil spring 50. And a drive motor 56 that rotationally drives the shaft 52.

  The thickness of the coil spring 50 is a value about the diameter of soybean, for example, 6 mm. The peripheral surface of the shaft 52 is formed of rubber, and the shaft 52 is formed by winding rubber around a metal core, and is inserted by friction with the inner periphery of the coil spring 50. Further, the rubber cylinder member 54 is inserted by frictional force with the outer periphery of the coil spring 50. Thus, the bean peeling apparatus in the second configuration example has a structure in which the coil spring 50 is sandwiched between the shaft 52 and the rubber cylinder member 54, and the coil spring 50 is interposed between the shaft 52 and the rubber cylinder member 54. A gap corresponding to the thickness (wire diameter) is formed. Moreover, in order to obtain a required spring constant, as the coil spring 50, as shown in FIGS.

  The drive motor 56 is coupled to the upper end portion of the shaft 52, and a collection box 62 is disposed at the lower end portion of the shaft 52.

  The operation of the bean peeling machine of the second configuration example is as follows. The coil spring 50 wound around the shaft 52 is rotated by the drive motor 56 with respect to the shaft 52 and the rubber cylinder member 54. The shaft 52 and the rubber cylindrical member 54 do not rotate together with the coil spring 50, and the coil spring 50 rotates while contacting the outer peripheral surface of the shaft 52 and the inner peripheral surface of the rubber cylindrical member 54.

  The soybeans introduced from the upper opening of the hopper 60 fall from the lower opening and fall into the gap between the shaft 52 and the rubber cylinder member 54.

  FIG. 9 is a diagram illustrating the state of soybean in the gap in the second configuration example. The coil spring 50 rotates so as to move the soybean in the gap downward, and as the coil spring 50 rotates, the soybean in the gap moves to the shaft 52 as shown in FIG. While being in contact with the inner peripheral surface of the rubber cylinder member 54 and the inner peripheral surface of the rubber cylindrical member 54, the coil spring 50 moves downward so as to be pushed from above. Then, during this downward movement, as shown in FIG. 9B, the soybean skin is caused by the frictional action caused by the contact between the soybean and the peripheral surface of the shaft 52 and the inner peripheral surface of the rubber cylindrical member 54. Peels off. In FIG. 9, the peeled skin is schematically drawn with emphasis from the fact for the sake of explanation.

  When the soybean reaches the lower end position of the gap, the soybean is released from the gap and falls and is collected in the collection box 62. The peeled peel remains as it is in the gap, and the peel is pushed out together with the soybeans to the lower end, so that the peeled beans and the peel fall together in the collection box 62 and are collected.

  Unlike the first configuration example, the second configuration example collects the peeled soybean and its skin together, but can be configured more easily and cheaply than the first configuration example. High stripping ability. According to the prototype of the inventor, the second configuration example has a processing capability about three times that of the first configuration example.

  When peeled soybeans and their peels are collected together, for example, the apparatus described below separated only the peel from the peeled soybeans and their peels, and the peels were peeled off. Only soybeans can be selected.

  FIG. 10 and FIG. 11 are diagrams showing a configuration example of a bean sorting apparatus that sorts only peeled soybeans from a peeled soybean and its mixed state. 10 is a side view, and FIG. 11 is a front view. The bean sorting device includes a mechanism for discharging the skin in the first configuration example described above.

  That is, when the peeled soybean and its mixture are put into the gap between the pair of rotating rollers 70 and 72 from one end of the rollers 70 and 72, they rotate in contact with the rotating rollers 70 and 72, respectively. Only the skin is drawn into the contact portion with the rotating rods 74 and 76, and is discharged from the gap. Then, only the peeled soybean advances to the one end side of the rollers 70 and 72 through the gap and is collected in a collection box (not shown). In addition, in the bean sorting apparatus of FIGS. 10 and 11, two sets of mechanisms for discharging only the skin are provided in parallel.

  The pair of rollers 70 and 72 is a cylindrical rotating body similar to the rollers 14 and 16 in the first configuration example, and the motor is directed from the top to the bottom with respect to the gap with the length direction as the rotation axis. It rotates by driving. The peripheral surfaces of the rollers 70 and 72 are made of rubber, and rubber having a predetermined hardness is wound around the peripheral surface of a metal cylinder. However, the gap between the rollers 70 and 72 may be wider than the gap between the rollers 14 and 16 in the first configuration example. This is because it is not necessary to peel the soybeans.

  The rotating rods 74 and 76 are rod-shaped members having a sufficiently small circular cross section compared to the diameters of the rotating bodies 14 and 16, similarly to the rotating rods 20 and 22 of the first configuration example. The rotating rod 74 is disposed so as to be in contact with the roller 70, the rotating rod 76 is disposed so as to be in contact with the roller 72, and the rotating rods 74 and 76 are in contact with each other at a position parallel to the rotation axis of the rollers 70 and 72. Arranged. In the first configuration example, the rotary rods 20 and 22 are disposed at positions below the rotation axes of the rollers 14 and 16, but in this apparatus, since it is not necessary to peel the soybeans, the rollers 70 and 72 It can arrange | position so that it may mutually contact in the position parallel to a rotating shaft. Of course, the structure arrange | positioned in the position below a rotating shaft may be sufficient like the 1st structural example.

  The rotary rods 74 and 76 are supported by a base 78, and the base 78 is connected to a vibration motor 80 and vibrates up and down by the vibration of the vibration motor. The stand 78 extends in the length direction from one end side to the other end side of the rollers 70 and 72, and supports the rotating rods 74 and 76 in parallel with the rotation axes of the rollers 70 and 72. The rotating rods 74 and 76 vibrate up and down while coming into contact with the rollers 70 and 72, respectively, by the vibration of the table 78. By giving play to the vibrations of the rotating rods 74 and 76, the rollers 70 and 72 can be brought into a non-contact state instantaneously. Instead of the vibration motor 80, other vibration means such as an electromagnetic feeder may be used. Further, the rotating rod 74 and the rotating rod 76 may be arranged so as to contact each other, and there may be a gap between the rotating rod 74 and the rotating rod 76 so that soybeans do not fall.

  As in the first configuration example, the peeled soy beans put into the gap and the mixture of the peels move on the rotating rod 74 and the rotating rod 76 from one end side to the other end side by vibration. In the meantime, only the peeled skin is drawn into the contact portion between the roller 70 and the rotating rod 74 and the contact portion between the roller 72 and the rotating rod 76 and discharged to the lower side of the rollers 70 and 72. Only the peeled soybeans move on the rotating rods 74 and 76 to the other end side of the rollers 70 and 72 in the gap, and a collection box (not shown) arranged on the front face on the other end side of the rollers 70 and 72. )).

  In the above-described embodiment, moulting of soaked soybean has been described as an example. However, the present invention is not limited to soybean, and can be applied to other soaked beans such as boiled green soybeans.

  10: Hopper, 12: Screw, 14: Roller, 16: Roller, 18: Stand, 18a: Surface portion, 18b: Surface portion, 20: Rotating rod, 22: Rotating rod, 24: Collection box, 26: Sampling plate, 28 : Tray, 30: vibration motor, 50: coil spring, 52: shaft, 54: rubber cylinder, 56: drive motor, 60: hopper, 62: collection box, 70: roller, 72: roller, 74: rotating rod , 76: rotating rod, 78: stand, 80: vibration motor

Claims (4)

A cylindrical first rotating body that is arranged in parallel and parallel to each other with a gap wide enough to sandwich the beans and that rotates from the top to the bottom with respect to the gap, with the length direction as the axis of rotation. And a second rotating body,
The beans introduced between the gaps extend in the length direction in order to move the beans from the one end side to the other end side of the first and second rotating bodies through the gap, and from the one end side with respect to the rotation shaft. A table having a first surface portion extending obliquely downward and a second surface portion extending continuously from the lower end position of the first surface portion to the other end side and extending parallel to the rotation axis. Members,
In the vicinity of the height position of the second surface portion, the first rotating body and the table member are rotated so as to be able to come into contact with each other, and the skin peeled off from the beans on the table member is brought into contact with the first rotating body. A first rotating rod that is drawn into the portion and discharged from the base member;
In the vicinity of the height position of the second surface portion, the second rotating body and the table member are rotated so as to be able to contact with each other, and the skin peeled off from the beans on the table member is brought into contact with the second rotating body. A second rotating rod that is drawn into the portion and discharged from the base member;
A bean peeling apparatus comprising vibration means for vibrating the base member. In claim 1,
The bean hulling device, wherein the first rotating body and the second rotating body are arranged to be inclined with respect to the horizontal so that the other end side is lower than the one end side. Coil springs,
A shaft that is inserted so as to penetrate the inner peripheral side of the coil spring and is bonded to the coil spring;
A rubber cylinder member covering the outer peripheral side of the coil spring;
A bean peeling apparatus comprising: a drive motor that rotates the coil spring and rotates the coil spring by rubbing against the shaft and the rubber cylindrical member. A cylindrical first rotating body and a second rotating body, which are arranged in parallel and parallel to each other with a predetermined gap therebetween and rotate from the top to the bottom with respect to the gap, each having a length direction as a rotation axis; ,
The gap that extends parallel to the first rotating body in the gap and rotates in contact with the first rotating body, and the skin peeled off from the beans in the gap contacts the first rotating body A first rotating rod that is drawn into the portion and discharged from the gap;
Within the gap, it extends parallel to the second rotating body, rotates in contact with the second rotating body, and peels the skin peeled off from the beans in the gap with the second rotating body. A second rotating rod that is drawn into the portion and discharged from the gap;
A bean sorting device comprising: vibration means for vibrating the first rotating rod and the second rotating rod.

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