JPH02295452A - Device of dehydrating and forming coagulated soybean milk in production device of tofu - Google Patents

Abstract

PURPOSE:To uniformly weight all the coagulated soybean milk by moving forward and backward a dropping cover, attached in a specific state to a press bar arranged at the upper part of all the press buckets having dehydrating holes, in the press buckets by rise and fall of the press bar. CONSTITUTION:The same number of dropping covers 29 as that of press buckets 27 are hung from a press bar 28 while forcing the dropping covers downward by springs 92. By dropping and raising the press bar 28, the dropping covers 29 are moved forward and backward in the press buckets 27, coagulated soybean milk are weighted and dehydrated to form tofu B.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to tofu, particularly to a dehydration molding device for coagulated soymilk in a firm tofu manufacturing machine.

Conventional technology A device for mass-producing tofu, especially tofu in containers, fills containers with soymilk containing a coagulant and coagulates it.
Although devices for producing so-called silken tofu are known, there are no known devices for mass-producing firm tofu that require dehydration molding of coagulated soymilk.

Problems to be Solved by the Invention For example, when mass producing tofu, a plurality of press buckets are used that have a large number of dehydration holes in required parts that do not allow the coagulated soymilk to pass through, but allow the moisture contained in the coagulated soymilk to pass through. , it is conceivable to press the coagulated soymilk contained in a plurality of press buckets at the same time.

By the way, the surface of the coagulated soymilk placed in the press bucket may be uneven or inclined, and the height may vary from press bucket to press bucket. If such coagulated soymilk is pressed all at once, the pressing pressure for each press bucket will vary, making it difficult to apply uniform weight to all coagulated soymilk.

An object of the present invention is to provide a dehydration molding device for coagulated soymilk in a tofu making machine that can apply uniform weight to all coagulated soymilk when the coagulated soymilk placed in a plurality of press buckets is pressed at the same time. It is in.

Means for Solving the Problems The device for dehydrating coagulated soymilk in a tofu making machine according to the present invention has a large number of dehydration holes in required parts that do not allow the coagulated soymilk to pass through, but allow water contained in the coagulated soymilk to pass through. A plurality of press buckets, a breath bar that can be lowered and raised freely and placed across the upper part of all the press buckets,
The same number of drop lids as the press buckets are suspended from a breath bar so as to be able to descend and rise freely, and are biased downwardly by a spring, so as to be located directly above each press bucket, and the breath bar is provided with the same number of drop lids as the press buckets, so that the drop lids move forward and backward into the press buckets. It is equipped with means for lowering and raising.

Function: In the dehydration molding device for coagulated soymilk in a tofu making machine according to the present invention, when the drop lid enters the press bucket, pressure is applied to the drop lid via the spring. Even if there is variation, the variation is absorbed by the spring.

Example Embodiments of the invention will now be described with reference to the drawings.

In the following description, the front and rear refer to the left side of FIGS. 5 and 6 as the front, the right side as the rear, and the left and right sides refer to the front.

An overview of the entire tofu manufacturing machine is shown in FIGS. 5 to 7.

The tofu manufacturing machine is roughly divided into three parts: a soymilk coagulation device 1, a coagulated soymilk dehydration molding device 2, and a final finishing device 3.

The soybean milk coagulating apparatus 1 includes an upper chamber 11 and a soybean milk coagulating socket conveyor 2l housed in the upper chamber 11. The coagulated soymilk dehydration molding device 2 includes:
It includes a lower chamber 12, a press packet conveyor 22, a press device 23, and a press pressure adjustment device 24 housed in the lower chamber 12. The final finishing device 3 includes a side chamber 13 and a chain conveyor 25 housed in the side chamber 13 for taking out tofu and collecting the dropped lid.

The upper chamber 11 is a steam chamber whose interior is heated to a high temperature of about 95°C. Lower chamber l2 is a sterile chamber. The front end of the bottom wall of the upper chamber l1 and the rear end of the bottom wall of the lower chamber 12 overlap, and the inclined transfer chute 14 is provided at the overlapped portion. The lower chamber 12 and the side chamber 13 communicate through upper and lower communication passages 15,16. side chamber 1
A discharge port 17 is provided on the rear wall of 3.

The soybean milk coagulating packet conveyor 2l has rows of parallel coagulating packets 26, is arranged so that the coagulating packets 26 in each row sequentially stop one by one above a chute, and is driven intermittently. The press packet conveyor 22 has the same number of rows of press buckets 27 as the rows of coagulation packets 2B, and is arranged so that the press buckets 27 in each row stop one by one sequentially below the chute 14 and intermittently. Driven. The press bucket 27 has a large number of holes that do not allow the coagulated soymilk to pass through, but allow the moisture contained in the soymilk to pass through. The press device 23 includes a large number of press blocks, and each press block includes a press bar 28 and droplets M29 suspended from the press bar 28 at the same intervals as the rows of press buckets 28. The drop lid 29 also has holes similar to the press bucket 27 that allow only moisture to pass through. The press pressure adjustment device 24 includes six pressurizing fluid pressure cylinders 31 to 3G and one pressure reducing fluid pressure cylinder 3 arranged along the press bucket path.
7.

When the coagulated packets 26 in each row reach the center of the lower packet movement path one by one, the soymilk distributing and filling device 41 fills each coagulated packet 2B with one block of tofu. A corresponding amount of soy milk and bittern mixture is distributed and filled. Bittern is magnesium chloride with a purity of 99.5% or more. The liquid mixture is obtained by heating and sterilizing soymilk and bittern, then cooling the mixture to below the coagulation temperature, and mixing the mixture immediately before distribution and filling.

While the coagulation packet 26 filled with the mixed liquid moves from the lower moving path to the upper moving path and moves to near the front end of the upper moving path, the mixed liquid in the coagulating packet 26 solidifies; The coagulated soymilk is broken into a column shape of approximately 20 mm square by a breaking device 42.

When the coagulated packet 2G containing the broken coagulated soymilk reaches the upper part of the chute 14, the coagulated packet 2G is overturned, and the broken coagulated soymilk falls down the chute 14 while breaking into small pieces, and reaches the bottom of the chute 14. The packet is transferred to the press bucket 27 that was waiting near the rear end of the upper moving path.

When the coagulated soymilk is put into the press bucket 27, the drop lid 29 is placed on the press bucket 27 by the drop lid recovery device 43 after it has moved forward a little.

While the press bucket 27 is moving from the middle of the packet's upper moving path to the middle of its lower moving path, the press device 23 and the press pressure adjustment device 24 apply a load to the dropping M29 in stages, thereby causing solidification. The water contained in soy milk is dehydrated and formed into tofu.

When the press bucket 27 containing the molded tofu reaches the rear end of the lower moving path, the press bar 28 is pulled down together with the drop lid 29 by the take-out device 44, so that the press bar 28 remains placed on the drop M29. Tofu B is taken out from the press bucket 27.

With the tofu B still placed on the drop lid 29, the press bar 28 is pulled out from the lower chamber l2 through the lower communication passage l6 by the transfer device 45 and introduced into the side chamber l3, and the press bar 28 is pulled out by the transfer device 45 through the lower communication passage l6 and introduced into the side chamber l3. ! 413 and held in the holder 47 of the chain conveyor 25.

Tofu B placed on the drop lid 29 of the press bar 28 held by the holder 47 is covered with an upside-down container C by the container supply device 48 .

When the holder 47 reaches the halfway point from the upper moving path to the lower moving path and the drop lid 29 is tilted diagonally backward and downward, the tofu B covered with the container C from above the drop lid 29 rotates to the discharge port 17 and the inside and outside of it. The container C containing tofu falls through the discharge chute 49 that extends over the tofu container C, and is placed on the discharge belt conveyor 5l in an upright state.

While being conveyed on a 5l belt conveyor, the tofu container C
is filled with sterile water using a filling nozzle 52, and a plastic film ML is applied using a heat sealing device 53.
Thereafter, it is introduced into a cooling tank 54. The temperature of the tofu at the time it was taken out from the press bucket 27 was 75°C or higher, but by passing through the cooling tank 54, the temperature of the tofu B
is cooled to about 10°C to form a finished product.

On the other hand, after the container C containing tofu is removed, the press bar 28 and drop M29 are moved while being held in the holder 47.
It is conveyed to the lower part of the drop lid recovery device 43, and is collected by the drop lid recovery device 43 along with the side chamber 13 through the lower part and into the chamber 12 through the upper communication passage 15.

Next, the dehydration molding device 2 will be explained in detail with reference to FIGS. 1 to 4.

The press packet conveyor 22 includes a press bucket 27
In addition to the above, there are left and right endless chains 61 and slats 62 that are fastened to the left and right endless chains 61. A plurality of press buckets 27 are supported in each slat B2 in a row at equal intervals in the length direction of the slat 62.

At both ends of the slat B2, there are restraining means 63 for the drop M29.
is provided. The restraint means 63 has a vertical guide hole 64
The guide cylinder 65 has a flanged guide cylinder 65, and an engaging claw support bracket 66 that is integrally provided with the flanged guide cylinder 65. An outward horizontal groove 67 is formed on the outer surface of the guide tube 65 above the flange, and an outward notch 68 is provided below the flange. Engagement claw support bracket 6
6 has a vertical opposing wall 69 extending outward from both edges of the notch G8, and a rod-shaped engagement piece 72 is attached to a horizontal pin 71 fixed to the opposing wall 69 in the middle of its length. It is mounted so that it can swing freely. An inward claw 73 is provided at the lower end of the engagement piece 72. A horizontal groove 74 facing the horizontal groove 67 of the guide cylinder G5 is provided near the upper end of the engagement piece 72, and a helical spring 7 is provided in both horizontal grooves 67, 74.
5 is stopped, and the engagement piece 72 is biased by the spring 75 so that the claw 73 thereof protrudes into the guide hole 64.

The press bar 28 has an upwardly U-shaped cross section. Vertical sliding rods 76 are provided at both ends of the press bar 28 in a vertically penetrating manner. The sliding rod 76 below the press bar 28 is formed with a large number of outward horizontal engaging grooves 77 that are continuously arranged in the length direction thereof. Numerous engagement grooves 77
has an overall downward sawtooth cross-sectional profile.

When the sliding rod 7B is inserted into the guide hole 64, the engaging piece 72
is pressed against the slider 78 by the spring 75, and the claw 73 is fitted into one of the engagement grooves 77. Even if you try to pull out the sliding rod 7B in this state, you cannot do so because the claw 73 does not come off from the engagement groove 77. On the other hand, if you try to push the sliding rod 76 in, it will resist the spring 75. Since the pawl 73 is pulled out of the engagement groove 77, it is free to do so.

The press bucket 27 is a vertically long rectangular parallelepiped box with an open top. At the upper end of the press bucket 27, an upwardly expanding tapered portion 8l is provided.

The dewatering holes 82 are arranged so as to be scattered in the press bucket 27 below the press bar 28. The diameter of the dehydration hole 82 is 0.8 mm.

The drop M29 is a rectangular flat plate that is housed on the inner surface of the trunk wall of the press bucket 27 with a slight distance therebetween. The diameter of the dehydration hole 82 of the drop lid 29 is also 0.8 mm.

The drop iiE29 has a reinforcing rib 8 rising from the outer peripheral edge.
3. Pillars 84 rising from the four corners of the upper end of the reinforcing ribs 83 and a roof 85 placed on the pillars 84 are each integrally provided. Trapezoidal notches 8B are formed in the front and rear central portions of the roof 85, and as a result of the notches, a narrow portion 87 is provided in the remaining portion.

A drop lid mounting member 9l having a substantially U-shaped vertical cross section is arranged so that its lower horizontal portion can pass under the narrow portion 87 of the drop lid 29. The upper end of the drop-lid attachment member 91 is fixed to the lower surface of the press bar 28. A compression coil spring 92 is located between the opposing vertical portions of the drop lid hanging member 91 and interposed between the lower surface of the press bar 28 and the narrow portion 87 of the drop lid 29.

Six pairs of pressurizing fluid pressure cylinders 3 of the press pressure adjustment device 24
1 to 36, a pair of pressurizing fluid pressure cylinders 3l will be described with reference to FIG. It is arranged downward and is fixedly supported by means not shown. A suppressing member 93 is attached to the tips of the piston rods of both cylinders 31. The piston strokes of the six pairs of pressurizing fluid pressure cylinders 31 to 36 are all variable, and the cylinder 31 of each pair
The piston strokes of 36 to 36 are set to increase stepwise in the order in which the pistons are lined up in the press bucket movement direction. Thereby, a press pressure that increases stepwise is applied to the drop M29.

A pair of pressure reducing fluid pressure cylinders 3 of the press pressure adjustment device 24
7 is a pressurizing fluid pressure cylinder 31 as shown in FIG.
36, both ends of the press bar 28 are arranged and fixed vertically downward above the movement path. A U-shaped lifting member 94 is attached to the lower end of the piston rod of the cylinder 37.

The engaging piece 7 is located directly below both pressure reducing fluid pressure cylinders 37.
A pair of restraint release fluid pressure cylinders 95 are disposed so as to face the upper end portions of the restraint release cylinders 95 . An engagement piece pushing member 9G is attached to the piston rods of both cylinders 95. When the cylinder 95 operates and the pushing member 9B pushes the upper end of the engagement piece 72 inward, the claw 7 is moved from the engagement groove 77.
3 is removed, and the sliding rod 76 can be raised freely. In this state, the lifting member 94 is raised by the operation of the decompression fluid pressure cylinder 37, so that the press bar 28 is slightly lifted, and the droplet M29 is lifted from the coagulated soymilk. In this way, by removing the weight during press molding, soymilk is prevented from digging into the dehydration holes 82, and the coagulated soymilk can be easily peeled off.

Effects of the Invention According to this invention, for example, even if there is variation in the height of coagulated soymilk from one press bucket to another, the variation is absorbed by the spring, so that all the coagulated soymilk placed in each of a plurality of press buckets is Uniform weight can be added to soy milk.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a perspective view including a broken cross section showing a press bucket and a drop lid together with related devices, FIG. 2 is a vertical sectional view of a portion corresponding to FIG. 1, and FIG. FIG. 4 is a vertical sectional view of the periphery of the drop lid showing the pressurized state of the drop lid. FIG. 4 is a vertical sectional view of the periphery of the drop lid showing the depressurized state of the drop lid. FIGS. 5 to 7 are a tofu making machine including the device according to the present invention. The overall layout diagram shows the drop lid, 82...dehydration hole, 92...spring. Shikoku Kakoki Co., Ltd.

Claims (1)

[Scope of Claims] A plurality of press buckets 27 each having a large number of dehydration holes 82 in required portions that do not allow the coagulated soymilk to pass through but allow water contained in the coagulated soymilk to pass through, and the upper part of all the press buckets 27. The press bar 28 is disposed across the press bar 28 and can be lowered and raised freely, and the press bar 28 is suspended from the press bar 28 so as to be lowered and raised so as to be located directly above each of the press buckets 27, and is biased downward by a spring 92. Press buckets 27 and the same number of drop lids 29
and means for lowering and raising a press bar 28 so that a drop lid 29 advances and retreats with respect to the inside of a press bucket 27.