JP3055120U - Soybean crusher - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To improve the crushing treatment capacity of a soybean crushing apparatus capable of crushing soybeans without immersion treatment to produce raw soybeans. SOLUTION: Soybeans put in a case 3 are forcibly transferred to an outlet 2 by a screw shaft 4. The outlet 2 is provided with a front and rear crushing mechanism. The first stage crushing mechanism is exit 2
And a cutter 12 that is driven to rotate by the screw shaft 4. The soybean is cut and roughly crushed by the perforated plate 11 and the cutter 12. The latter crushing mechanism is Case 3
And a driving disk 16 opposed to the fixed disk 17. A second shaft 21 that vertically passes through the screw shaft 4 is provided inside the screw shaft 4. The driving disk 16 is independently driven by the second shaft 21 to improve the crushing ability of the rear crushing mechanism while avoiding abnormal heat generation in the front crushing mechanism.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a crushing device for crushing soybeans for tofu raw materials, and more particularly to a soybean crushing device capable of crushing soybeans without immersion treatment and producing raw soybeans.

[0002]

[Prior art]

 As this kind of conventional device, Japanese Utility Model Registration No. 3041036 proposed by the present applicant is known. There, the non-soaked soybeans charged into the case were forcibly fed in one direction by a screw shaft, and the soybeans were cut and roughed using a porous body provided at the end of the case and a cutter fixed to the screw shaft. Crush. The roughly crushed soybean pieces are again finely crushed by a pair of crushing disks provided adjacent to the perforated plate to become raw. One of the crushing disks is fixed to the above case, and the other rotates together with the screw shaft so as to crush the roughly crushed soybean pieces.

According to the above-mentioned soybean crushing apparatus, it is not necessary to soak soybeans in advance, so that the labor and time required for soybean soaking can be saved, and the space for soaking tanks and tank installation can be omitted. Can be. In addition, since there is no leaching of soybean nutrients during immersion, it has many features not found in conventional devices, such as the ability to increase the nutritional value of raw berries, and is rapidly spreading.

[0004]

[Problems to be solved by the invention]

 The inventor tried soybean crushing under various operating conditions to further improve the performance of the crushing device. Basically, the screw shaft, cutter and crushing disk rotate together, so it is expected that increasing the driving speed of the screw shaft will increase the crushing throughput of soybeans per unit time. The expected results were obtained during operation. However, when the driving speed of the screw shaft exceeds a certain value, abnormal heat is generated on the side of the crushing mechanism before the rough crushing, although the crushing disc can re-crush the soybean pieces without hindrance. Was found to occur. This is considered to be due to, for example, frictional heat of soybeans and soybean pieces when passing through the cutter and the perforated plate. Also, when the driving speed is reduced to a state where continuous operation is possible without generating heat, the amount of soybean pieces crushed in the subsequent crushing disk is reduced, and the soybean crushing capacity of the entire apparatus is reduced. It turned out that it could not be improved as much.

An object of the present invention is to make it possible to rotate each of the former-stage cutter and the latter-stage driving disk in an appropriate driving state, thereby increasing the amount of crushing per unit time as compared with the conventional apparatus, and It is an object of the present invention to provide a soybean crusher capable of efficiently producing rice. Another object of the present invention is that the former cutter and the latter drive disk can be individually driven to rotate, and therefore, the soybean crushing process can be continuously and efficiently performed without generating abnormal heat in the former crushing mechanism. An object of the present invention is to provide a soybean crushing apparatus that can perform the method.

[0006]

[Means for Solving the Problems]

 The soybean crusher of the present invention has a cylindrical case 3 having an inlet 1 on one side and an outlet 2 open on the other side, and is disposed in the case 3 and supplied from the inlet 1. And a screw shaft 4 for forcibly transferring soybeans toward the outlet 2. At the outlet 2 side of the case 3, a first-stage crushing mechanism for roughly crushing soybeans fed by the screw shaft 4 and a second-stage crushing mechanism for re-crushing soybean pieces roughly crushed by the first-stage crushing mechanism are provided. Have been. The former-stage crushing mechanism includes a perforated plate 11 fixed inside the case 3 and closing the outlet 2, and a cutter 12 fixed to the screw shaft 4 and cutting the soybean pressed against the perforated plate 11 to roughly crush. . The second-stage crushing mechanism is a ring-shaped fixed disk 17 fixed to the end of the case facing the outlet 2, and is disposed opposite to the outer surface of the fixed disk 17 to re-crush the roughly crushed soybean pieces in cooperation with the fixed disk 17. And a driving disk 16 that performs the driving. The drive disk 16 is configured to be independently rotatable and driven by a second shaft 21 vertically passing through the center of the screw shaft 4.

The driving speed of the driving disk 16 is set to be higher than the driving speed of the cutter 12.

[0008]

[Action]

 Since the cutter 12 is driven to rotate by the screw shaft 4 and the drive disk 16 is driven to rotate by the second shaft 21, the drive state of the cutter 12 and the drive disk 16 can be optimized according to the crushing load. Basically, the drive disk 16 is driven to rotate at a higher speed than the cutter 12 while driving the cutter 12 at a drive rotation speed that does not generate heat. If necessary, the drive disk 16 may be rotationally driven with the cutter 12 and the drive disk 16 rotated in opposite directions.

[0009]

【Example】

 1 and 2 are schematic sectional views of the soybean crushing apparatus according to the present invention. In FIG. 2, the soybean crushing apparatus has a cylindrical case 3 having an inlet 1 on one upper surface and an outlet 2 open on the other end, and a screw shaft 4 arranged in the case 3. On the outlet 2 side of the case 3, a front-stage crushing mechanism and a rear-stage crushing mechanism are arranged.

The screw shaft 4 has a helical blade 4a protruding from a peripheral surface of a central shaft portion. The soybeans supplied into the case 3 from the input port 1 by the blade 4a are transferred to the outlet 2 on the right side in the figure. Forced transfer toward. The screw shaft 4 is rotatably supported in a cantilevered manner by a group of bearings 5 provided on one side of the case 3, and is driven to rotate in one direction via a belt pulley 7 by a drive mechanism. . In FIG. 1, the driving mechanism includes a driving pulley 32 for the screw shaft 4 and a driving pulley 33 for the second shaft 21 fixed to the output shafts of the motor 30 and the speed reducer 31, respectively. Power transmission between the corresponding pulleys is performed by belts. Reference numeral 8 denotes a seal body, and reference numeral 9 denotes a charging shortcut fixed to the charging port 1.

The former-stage crushing mechanism includes a perforated plate 11 fixed to the case 3 in a state where the inner surface of the case near the outlet 2 is closed, and a cutter 12 arranged inside the outlet adjacent to the perforated plate 11. In FIG. 3, a group of through holes 13 is provided on the surface of the perforated plate 11. The cutter 12 has a plurality of cutting blades 14 radially arranged adjacent to the perforated plate 11 from the inside, and a boss 15 supporting the cutting blades 14 is fixedly fitted to the screw shaft 4 (see FIG. 2). .

The rear-stage crushing mechanism includes a ring-shaped fixed disk 17 fixed to the end of the case facing the outlet 2, and a soybean piece arranged opposite to the outer surface of the fixed disk 17 and roughly crushed by the preceding-stage crushing mechanism. And a driving disk 16 that re-crushes in cooperation with a fixed disk 17. Each of the disks 16 and 17 is formed by hardening an abrasive material into a disk shape, and the outer diameter of each of the disks 16 and 17 is set to be larger than the virtual outer diameter of the cutter 12.

The fixed disk 17 is formed in a ring shape, and has a guide surface 42 on a surface wall facing the drive disk 16. The guide surface 42 is formed in an outwardly tapering shape inclined from the center of the ring toward the periphery of the ring, and the distance between the guide surface 42 and the drive disk 16 decreases as the periphery of the ring is approached. The distance between the disks 16 and 17 at the periphery of the ring is extremely small. The fixed disk 17 is externally fitted to the end of the case facing the outlet 2 and is fastened and fixed with a ring-shaped nut 26 screwed into the end of the case. One side surface of the fixed disk 17 in this state is received by the backup wall 24 fixed to the case 3. The backup wall 24 also serves as a support for a cover 29 that covers the outer surface of the subsequent crushing mechanism.

The driving disk 16 is formed of a disk having a mounting hole passing through the center, and is fastened and fixed by a nut 20 screwed into a metal holder 19 to be integrated with the holder 19. A second shaft 21 is provided inside the screw shaft 4 in order to drive the disk 16 to rotate independently of the cutter 12 and the screw shaft 4. As shown in FIG. 2, the second shaft 21 is provided so as to extend longitudinally along the axial center of the screw shaft 4, further penetrate the perforated plate 11, and project outside the outlet 2. The holder 19 is fixed to the shaft end on the outlet 2 side with a nut 35 via a lock sleeve 22. Thereby, the drive disk 16 can rotate together with the second shaft 21. The second shaft 21 is rotatably supported by the screw shaft 4 via bearings 23 and 25, and is driven in the same direction via a belt pulley 27 by using the same drive mechanism as the screw shaft 4 as a drive source. It is driven to rotate. Reference numeral 28 denotes a seal body.

Since the soybeans in the unimmersed state are directly crushed, the crushing load in the first-stage crushing mechanism is much larger than the crushing load in the second-stage crushing mechanism. In accordance with such a difference in the crushing load, the crushing load of each crushing mechanism is optimized, and the driving speed of the driving disk 16 is set to be larger than the driving speed of the cutter 12 in order to perform the crushing process without difficulty and efficiently. Set. For example, the ratio between the drive rotation speeds of the two 16 and 12 is set from 2.5: 1 to 5: 1. By the way, when the diameter value of the driving disk 16 increases, the peripheral speed increases, and the same effect as when the driving rotation speed of the second shaft 21 increases can be obtained. On the other hand, the moment arm of the resistance force at the time of crushing becomes large, and as a result, the reaction moment increases, and further, the rotational deflection in the thickness direction of the disk at the time of crushing increases. In consideration of such a situation, it is preferable to simply increase the driving rotation speed of the driving disk 16 to improve the crushing capacity of the subsequent crushing mechanism.

At the time of use, soybeans are washed with water before crushing to remove foliage, mud and the like mixed in the soybeans. The washed soybeans are put into the case 3 from the inlet 1. The soybean in the case 3 is forcibly transferred to the outlet 2 by the screw shaft 4 and received by the perforated plate 11 closing the outlet 2. Then, the soybean is cut by the cooperative action of the perforated plate 11 and the cutter 12, and only the roughly crushed soybean pieces smaller than the hole diameter of the through hole 13 are pushed out from the through hole 13.

The roughly crushed soybean pieces are filled between the pair of crushing disks 16 and 17 by the pressurizing and feeding action of the screw shaft 4. Here, since the driving disk 16 is driven to rotate in the same direction as the screw shaft 4 by the second shaft 21 but at a higher speed than the screw shaft 4, the soybean pieces are crushed by both disks 16 and 17 to remove oil and fat. In the state containing the slab, the slivers are fragmented while moving between the disks 16 and 17 in the radial direction and become raw.

[0018]

[Effect of the invention]

 According to the soybean crushing device of the present invention, the second shaft 21 of the independent drive system is provided inside the screw shaft 4, and the drive disk 16 of the subsequent crushing mechanism is independent of the cutter 12 by the second shaft 21. The cutter 12 and the driving disk 16 can be driven to rotate appropriately in accordance with the respective crushing loads. As a result, it is possible to improve the amount of soybean crushing processed per unit time and efficiently produce raw garbage, while inheriting the preferable features of the conventional soybean crushing apparatus.

[Brief description of the drawings]

FIG. 1 is a schematic explanatory view of a soybean crushing apparatus.

FIG. 2 is a vertical sectional side view of the soybean crushing apparatus.

FIG. 3 is a sectional view taken along line AA in FIG. 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Input port 2 Outlet 3 Case 4 Screw shaft 11 Perforated plate 12 Cutter 16 Driving disk 17 Fixed disk 21 Second axis

Claims (2)

[Utility model registration claims] 1. A cylindrical case 3 having an input port 1 on one side and an outlet 2 open on the other side, and a soybean supplied from the input port 1 disposed in the case 3 and having an outlet. A screw shaft 4 forcibly transporting the soybeans fed by the screw shaft 4 to the outlet 2 side of the case 3; A second-stage crushing mechanism is provided for re-crushing the soybean pieces. The first-stage crushing mechanism includes a perforated plate 11 fixed inside the case 3 and closing the outlet 2, and a perforated plate fixed to the screw shaft 4. A cutter 12 for cutting and roughly crushing soybeans pressed against 11, and the latter-stage crushing mechanism has a ring-shaped fixed disk 17 fixed to the end of the case facing the outlet 2, and is disposed to face the outer surface of the fixed disk 17. And fix the roughly crushed soybean pieces in a circle 17 and a driving disk 16 that re-crushes in cooperation with the driving disk 17, wherein the driving disk 16 is configured to be independently rotatable and driven by a second shaft 21 that vertically passes through the center of the screw shaft 4. Soybean crushing equipment. 2. The soybean crushing apparatus according to claim 1, wherein the driving rotation speed of the driving disk 16 is set to be higher than the driving rotation speed of the cutter 12.