Automatic continuous bean curd squeezing device and squeezing process

Abstract

The automatic continuous bean curd squeezing device comprises a squeezing mold, a pull-out mechanism arranged at the bottom of the squeezing mold and lifting mechanisms arranged on the two sides of the squeezing mold, and translation mechanisms are fixed to the output ends of the lifting mechanisms; the squeezing mold comprises a squeezing supporting mold frame, a turnover basket is placed in the squeezing supporting mold frame, the upper edge of the squeezing supporting mold frame extends outwards to form a first edge, a T-shaped limiting rod is arranged on the outer wall of the squeezing supporting mold frame, and water filtering holes are formed in the squeezing supporting mold frame and the turnover basket; the pull-out mechanism comprises two fixing plates which are arranged at the bottom of the squeezing mold in a spaced mode, a third driving shaft and a third driven shaft are transversely installed between the two fixing plates, the third driving shaft and the third driven shaft are in transmission connection through two pull-out chains, and a push-out rod is fixed to each pull-out chain and used for squeezing the squeezing mold; through the design, the technical problems of low degree of automation, time consumption and labor consumption of existing reverse squeezing are solved.

Description

Technical Field

[0001] The invention relates to the field of bean product processing, and in particular to an automated continuous tofu pressing device and a pressing process. Background Art

[0002] Tofu contains a variety of trace elements necessary for the human body and rich high-quality protein, and is known as "vegetable meat". The digestion and absorption rate of tofu is over 95%. Tofu production includes two steps: one is pulping, which is to make soybean milk from soybeans; the other is coagulation, which is to coagulate the soybean milk into a gel containing a large amount of water under the combined action of heat and coagulant, namely tofu.

[0003] The original process flow of pressing tofu by the weight of the turnover basket is that the non-woven fabric is manually spread flat in the turnover box, and the area of ​​the non-woven fabric is 1 times that of the turnover box. The required tofu pudding is filled in the turnover box (the source of the tofu pudding can be in various forms, including small barrel slurry coagulation machine, large barrel slurry coagulation, slurry flushing, etc.), and the excess part of the non-woven fabric is folded on top of the tofu pudding to confirm that no tofu pudding is exposed. Then, a new turnover box is placed on top of it, and the above steps are repeated to stack the turnover boxes. After stacking to the appropriate height, self-pressure is formed. After a period of self-pressure, manual reverse pressing is required. Reverse pressing is to manually pour the top layer to the bottom and the bottom layer to the top to achieve the purpose of uniform pressure on all tofu. However, this process is not automated and is completed entirely by hand, which is time-consuming and labor-intensive.

[0004] In order to reduce costs, the present invention provides an automated continuous tofu pressing device to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to overcome the defects in the prior art and provide an automated continuous tofu pressing device and a pressing process.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] An automated continuous tofu pressing device comprises a pressing die, a pulling mechanism arranged at the bottom of the pressing die, and a lifting mechanism arranged at both sides of the pressing die, wherein a translation mechanism is fixed at the output end of the lifting mechanism;

[0008] The pressing mold comprises a pressing support mold frame, a turnover basket is placed in the pressing support mold frame, the upper edge of the pressing support mold frame extends outward to form a first edge, a T-shaped limit rod is arranged on the outer wall, and both the pressing support mold frame and the turnover basket are provided with water filtering holes;

[0009] The pulling mechanism includes two fixed plates arranged at an interval at the bottom of the squeezing mold, and a third driving shaft and a third driven shaft are installed horizontally between the two fixed plates. The third driving shaft and the third driven shaft are connected by two pulling chains. Each pulling chain is fixed with a pushing rod for pushing out the squeezing mold; the third driving shaft is also provided with a pulling gear, and a pulling cylinder is fixed at the lower side, the output end of the pulling cylinder is connected to the pulling plate, and a pulling rack meshing with the pulling gear is fixed on the top of the pulling plate.

[0010] Preferably, the translation mechanism includes a translation frame fixed at the output end of the lifting mechanism, and a first driving shaft and a first driven wheel are respectively provided at the left and right ends of the translation frame. The first driving shaft and the first driven wheel are connected by a translation chain transmission. A translation plate is fixed on the translation chain, and the translation plate is provided with a lifting ear for lifting the first edge of the pressing mold.

[0011] Preferably, the lifting mechanism comprises two fixed frames arranged at intervals, a second driving shaft and a second driven shaft are transversely arranged on the top of the two fixed frames, the second driving shaft and the second driven shaft are connected by two lifting chains, one end of the lifting chain is fixed to the counterweight block, and the other end is connected to a lifting plate, the lifting plate is connected to the translation mechanism, and a plurality of pulleys for auxiliary lifting are arranged on the lifting plate;

[0012] The second driving shaft sleeve is provided with a driven gear, a driving motor is provided above the second driving shaft, an output shaft of the driving motor is connected with the driving gear, and the driving gear and the driven gear are connected through a driving chain transmission.

[0013] Preferably, a plurality of auxiliary wheels are provided on both sides of the pull-out plate of the pull-out mechanism, and a slideway matching the plurality of auxiliary wheels is provided under the two fixed plates.

[0014] Preferably, auxiliary frames are respectively provided on both sides of the two fixed plates of the pulling mechanism, a limit plate extending upward is fixed between the two auxiliary frames, a limit groove is vertically provided in the middle of the limit plate, and the width of the limit groove is wider at the top and narrower at the bottom.

[0015] Preferably, the first driving shaft of the translation mechanism is driven by a rotary motor.

[0016] Preferably, a stabilizing rod is fixed between the two translation frames of the translation mechanism.

[0017] An automated continuous tofu pressing process, in which a tofu pressing device is used during the pressing process, specifically comprises the following steps:

[0018] 1) Pressing: Multiple pressing support mold frames and their internal turnover baskets are stacked from bottom to top using a lifting mechanism and a translation mechanism;

[0019] 2) Pressing: Design the number of stacked layers and use the tofu’s own weight to press;

[0020] 3) Pressing: Use the lifting mechanism and translation mechanism to lift the penultimate and above pressing support mold frames and turnover baskets to a certain height, and the pulling mechanism pulls the bottom layer of pressing support mold frames and turnover baskets out of the pressing station to complete the pressing.

[0021] Preferably, the step 3) of squeezing also includes: a pulling mechanism pulls out the bottom layer from the multi-layered squeezing support mold frame, and after the squeezing of the bottom layer is completed, a new layer of squeezing support mold frame and turnover basket are stacked on the top layer, and the above steps are repeated to realize automated continuous squeezing.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows: the translation mechanism and the lifting mechanism send the pressing support mold frame and the turnover basket into the pressing station together, the pressing station is above the pulling mechanism and close to the limit plate, and multiple pressing support mold frames and turnover baskets are automatically stacked from bottom to top, and pressed by their own weight. After the pressing is completed, the pressing support mold frames and turnover baskets of the penultimate layer and above are lifted to a certain height by the lifting mechanism and the translation mechanism, and the pressing support mold frames and turnover baskets of the bottom layer are pulled out by the pulling mechanism to complete the pressing, and then another layer is stacked on the top layer of the original stacked pressing support mold frame to achieve the purpose of uniform pressure on all tofu. This device has a high degree of automation and realizes automatic pressing, automatic pressing, and automatic pressing, without the need for manual pressing. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the internal transmission structure of the present invention;

[0025] Figure 3 This is an enlarged view of the structure at A of the present invention;

[0026] Figure 4 This is an enlarged view of the structure at B of the present invention;

[0027] Figure 5 It is a schematic diagram of the pressing mold of the present invention.

[0028] In the figure: 1, pressing mold; 11, pressing support mold frame; 111, first edge; 112, limit rod; 12, turnover basket; 121, water filter hole; 2, pull-out mechanism; 21, fixed plate; 211, slideway; 22, third driving shaft; 221, pull-out gear; 23, third driven shaft; 24, pull-out chain; 25, push-out rod; 26, pull-out cylinder; 27, pull-out plate; 28, pull-out rack; 29. Two auxiliary frames; 291. Limiting plate; 292. Limiting groove; 3. Lifting mechanism; 31. Fixed frame; 32. Second driving shaft; 33. Second driven shaft; 34. Lifting chain; 341. Counterweight; 35. Lifting plate; 37. Driving motor; 39. Driving chain; 4. Translation mechanism; 41. Translation frame; 411. Stabilizing rod; 44. Translation chain; 45. Translation plate; 451. Lifting ear. DETAILED DESCRIPTION

[0029] A preferred embodiment of the present invention will be described below in conjunction with the accompanying drawings to clearly and completely describe the technical solution in a preferred embodiment of the present invention.

[0030] Embodiment 1:

[0031] An automated continuous tofu pressing device comprises a pressing mold 1, a pulling mechanism 2 arranged at the bottom of the pressing mold 1 and a lifting mechanism 3 arranged at both sides of the pressing mold 1, wherein a translation mechanism 4 is fixed at the output end of the lifting mechanism 3;

[0032] The pressing mold 1 includes a pressing support mold frame 11, a turnover basket 12 is placed in the pressing support mold frame 11, the upper edge of the pressing support mold frame 11 extends outward to form a first edge 111, and a T-shaped limit rod 112 is provided on the outer wall. The pressing support mold frame 11 and the turnover basket 12 are both provided with a water filter hole 121;

[0033] The pulling mechanism 2 includes two fixed plates 21 arranged at an interval at the bottom of the pressing mold 1, and a third driving shaft 22 and a third driven shaft 23 are horizontally installed between the two fixed plates 21. The third driving shaft 22 and the third driven shaft 23 are connected by two pulling chains 24. A pushing rod 25 is fixed on each pulling chain 24 for pushing out the pressing mold 1; a pulling gear 221 is also sleeved on the third driving shaft 22, and a pulling cylinder 26 is fixed on the lower side, and a pulling plate 27 is connected to the output end of the pulling cylinder 26, and a pulling rack 28 meshing with the pulling gear 221 is fixed on the top of the pulling plate 27.

[0034] Through the above design, the size of the pressing mold 1 and the number of each layer are made according to the required tofu size, and the pressing process is as follows:

[0035] like Figures 1 to 3As shown: first put the turnover basket 12 into the pressing support mold frame 11, manually spread the non-woven fabric in the turnover basket 12, fill the turnover basket 12 with the required tofu pudding (the tofu pudding can come from a variety of forms including a small barrel slurry solidification machine, a large barrel slurry solidification, a slurry flushing form, etc.), and then fold the excess non-woven fabric over the tofu pudding to make sure that no tofu pudding is exposed. The translation mechanism 4 and the lifting mechanism 3 send the pressing support mold frame 11 and the turnover basket 12 to the pressing station together. The pressing station is located above the pulling mechanism and close to the limit plate. The pressing station is automatically stacked from bottom to top until the designed number of layers are stacked. The tofu is squeezed by its own weight, and the juice is discharged through the filter hole 121. After the squeezing is completed, the lifting mechanism 3 and the translation mechanism 4 are used to lift the penultimate and above pressing support mold frames 11 and turnover baskets 12 to a certain height, and the telescopic rod of the pulling cylinder 26 of the pulling mechanism 2 is extended to drive the rack 28 on the pulling plate 27 to engage with the pulling gear 221 of the third driving shaft 22, so that the pulling chain 24 drives the ejection rod 25 to pull the bottom layer of the pressing support mold frame 11 and the turnover basket 12 out of the pressing station together to complete the squeezing. The present application realizes the bottom-out and top-in reciprocating self-weight squeezing, so that all tofu are pressed evenly, and it is automatic in squeezing, automatic squeezing, and automatic squeezing, with a high degree of automation.

[0036] Specifically, the translation mechanism 4 includes a translation frame 41 fixed at the output end of the lifting mechanism 3, and a first driving shaft and a first driven wheel are respectively provided at the left and right ends of the translation frame 41. The first driving shaft and the first driven wheel are connected by a translation chain 44. A translation plate 45 is fixed on the translation chain 44, and the translation plate 45 is provided with a lifting ear 451 for lifting the first edge 111 of the pressing mold 1.

[0037] like Figure 4 As shown: Through the above design, the first driving shaft, the first driven wheel and the translation chain 44 drive the translation plate 45 on the translation chain 44 to move left and right, and the lifting ear 451 on the translation plate 45 clamps the first edge 111 of the pressing mold 1, and cooperates with the lifting mechanism 3 to lift the pressing mold 1, ensuring smooth pressing and squeezing.

[0038] Specifically, the lifting mechanism 3 includes two fixed frames 31 arranged at intervals, and a second driving shaft 32 and a second driven shaft 33 are transversely arranged on the top of the two fixed frames 31. The second driving shaft 32 and the second driven shaft 33 are connected by two lifting chains 34. One end of the lifting chain 34 is fixed to the counterweight block 341, and the other end is connected to a lifting plate 35. The lifting plate 35 is connected to the translation mechanism 4, and a plurality of pulleys for auxiliary lifting are arranged on the lifting plate 35.

[0039] The second driving shaft 32 is sleeved with a driven gear. A driving motor 37 is disposed above the second driving shaft 32 . The output shaft of the driving motor 37 is connected to the driving gear. The driving gear and the driven gear are connected through a driving chain 39 .

[0040] like Figure 2 As shown: Through the above design, the second driving shaft 32, the second driven shaft 33 and the lifting chain 34 drive the lifting plate 35 to move up and down, thereby driving the translation mechanism 4 to rise and fall to ensure smooth pressing and squeezing, wherein the second driving shaft 32 is driven to rotate by the driving motor 37.

[0041] Specifically, a plurality of auxiliary wheels are provided on both sides of the pull-out plate 27 of the pull-out mechanism 2 , and a slideway 211 matching the plurality of auxiliary wheels is provided under the two fixed plates 21 .

[0042] The present invention ensures the stability of the movement of the pull-out plate 27 through the above-mentioned design, and prevents the tofu from spilling.

[0043] Specifically, auxiliary frames 29 are provided on both sides of the two fixed plates 21 of the pulling mechanism 2, and a limit plate 291 extending upward is fixed between the two auxiliary frames 29. A vertical limit groove 292 is opened in the middle of the limit plate 291, and the limit groove 292 is wide at the top and narrow at the bottom.

[0044] Through the above design, the limiting rod 112 on the outer wall of the pressing support mold frame 11 cooperates with the limiting groove 292 to ensure the stability of the multi-layer stacking. The limiting groove 292 is wide at the top and narrow at the bottom, and cooperates with the limiting rod 112 on the outer wall of the pressing support mold frame 11 to facilitate the pressing and exiting of the pressing mold 1.

[0045] Specifically, the first driving shaft of the translation mechanism 4 is driven by a rotary motor.

[0046] Specifically, a stabilizing rod 411 is fixed between the two translation frames 41 of the translation mechanism 4 .

[0047] The present invention ensures that the two translation frames 41 are raised and lowered synchronously and remain stable through the above-mentioned design.

[0048] Embodiment 2:

[0049] An automated continuous tofu pressing process, in which a tofu pressing device is used during the pressing process, specifically comprises the following steps:

[0050] 1) Pressing: Multiple pressing support mold frames 11 and the turnover baskets 12 therein are stacked from bottom to top using the lifting mechanism 3 and the translation mechanism 4;

[0051] 2) Pressing: Design the number of stacked layers and use the tofu’s own weight to press;

[0052] 3) Squeezing: Use the lifting mechanism 3 and the translation mechanism 4 to lift the penultimate and above squeezing support mold frames and turnover baskets to a certain height, and the pulling mechanism 2 pulls the bottom squeezing support mold frame 11 and the turnover basket 12 out of the squeezing station to complete the squeezing.

[0053] Specifically, the step 3) squeezing also includes: the pulling mechanism 2 pulls out the bottom layer from the multi-layered squeezing support mold frame 11, and after the squeezing of the bottom layer is completed, a new layer of squeezing support mold frame 11 and turnover basket 12 are stacked on the top layer, and the above steps are repeated to realize automatic continuous squeezing.

[0054] The original pressing process is to manually spread the non-woven fabric flat in the turnover box, with the area of ​​the non-woven fabric being 1 times that of the turnover box, and fill the turnover box with the required tofu pudding (the tofu pudding can come from a variety of forms, including small barrel slurry coagulation machine, large barrel slurry coagulation, slurry flushing, etc.), and then fold the excess part of the non-woven fabric over the tofu pudding, confirm that no tofu pudding is exposed, and then put a new turnover box on top, repeat the above steps to stack the turnover boxes, and form self-pressure after stacking to the appropriate height. After a period of self-pressure, manual reverse pressing is required. Reverse pressing is to manually pour the top layer to the bottom and the bottom layer to the top, so that all tofu are evenly compressed.

[0055] This pressing process is a self-pressing tofu pressing process, with a turnover box mold frame 11 added, and a turnover basket 12 placed in the pressing support mold frame 11. The turnover box mold frame 11 is made of steel and is not easy to deform. It can be made according to the size of the turnover box 12 and the number of each layer. It is combined with the lifting mechanism 3 and the translation mechanism 4 to realize automatic pressing, automatic pressing, and automatic pressing. There is no need for manual reversing. The detailed operation is as follows: first put the turnover box 12 into the turnover box mold frame 11, manually lay the non-woven fabric flat in the turnover box 12, fill the turnover box 12 with the required tofu, and then fold the excess part of the non-woven fabric above the tofu to confirm that there is no exposed tofu. The lifting mechanism 3 and the translation mechanism 4 send the turnover box mold frame 11 and the packaging box 12 into the pressing station together, and automatically stack them from bottom to top. After stacking to the designed number of layers, they are automatically pressed from bottom to top, and all tofu can be pressed evenly without manual reversing.

[0056] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automated continuous tofu pressing device, characterized in that: It comprises a pressing mould (1), a pulling mechanism (2) arranged at the bottom of the pressing mould (1), and a lifting mechanism (3) arranged at both sides of the pressing mould (1), wherein a translation mechanism (4) is fixed to the output end of the lifting mechanism (3); The pressing mold (1) comprises a pressing support mold frame (11), a turnover basket (12) is placed in the pressing support mold frame (11), the upper edge of the pressing support mold frame (11) extends outward to form a first edge (111), the outer wall is provided with a T-shaped limit rod (112), and the pressing support mold frame (11) and the turnover basket (12) are both provided with a water filter hole (121); The pulling mechanism (2) comprises two fixed plates (21) arranged at an interval at the bottom of the pressing mold (1), a third driving shaft (22) and a third driven shaft (23) are transversely installed between the two fixed plates (21), the third driving shaft (22) and the third driven shaft (23) are connected by two pulling chains (24), and each pulling chain (24) is fixed with a push rod (25) for pushing out the pressing mold (1); the third driving shaft (22) is also sleeved with a pulling gear (221), and a pulling cylinder (26) is fixed at the lower side, the output end of the pulling cylinder (26) is connected to a pulling plate (27), and a pulling rack (28) meshing with the pulling gear (221) is fixed on the top of the pulling plate (27).

2. The automated continuous tofu pressing device according to claim 1, characterized in that: The translation mechanism (4) comprises a translation frame (41) fixed at the output end of the lifting mechanism (3), a first driving shaft and a first driven wheel are respectively provided at the left and right ends of the translation frame (41), the first driving shaft and the first driven wheel are connected by a translation chain (44), a translation plate (45) is fixed on the translation chain (44), and the translation plate (45) is provided with a lifting ear (451) for lifting the first edge (111) of the pressing mold (1).

3. The automated continuous tofu pressing device according to claim 1, characterized in that: The lifting mechanism (3) comprises two fixed frames (31) arranged at an interval, a second driving shaft (32) and a second driven shaft (33) are transversely arranged on the top of the two fixed frames (31), the second driving shaft (32) and the second driven shaft (33) are connected by two lifting chains (34), one end of the lifting chain (34) is fixedly connected to the counterweight block (341), and the other end is connected to a lifting plate (35), the lifting plate (35) is connected to the translation mechanism (4), and a plurality of pulleys for auxiliary lifting are arranged on the lifting plate (35); The second driving shaft (32) is sleeved with a driven gear, a driving motor (37) is arranged above the second driving shaft (32), an output shaft of the driving motor (37) is connected with the driving gear, and the driving gear and the driven gear are connected by a driving chain (39).

4. The automated continuous tofu pressing device according to claim 1, characterized in that: A plurality of auxiliary wheels are provided on both sides of the pull-out plate (27) of the pull-out mechanism (2), and a slideway (211) matching the plurality of auxiliary wheels is provided below the two fixed plates (21).

5. The automated continuous tofu pressing device according to claim 1, characterized in that: Auxiliary frames (29) are respectively provided on both sides of the two fixed plates (21) of the pulling mechanism (2); a limit plate (291) extending upward is fixed between the two auxiliary frames (29); a limit groove (292) vertically penetrating the limit plate (291) is provided in the middle of the limit plate (291); the limit groove (292) is wide at the top and narrow at the bottom, and is used to cooperate with a T-shaped limit rod (112) on the outer wall of the pressing support mold frame (11), so as to facilitate the pressing mold (1) to enter and exit.

6. The automated continuous tofu pressing device according to claim 2, characterized in that: The first driving shaft of the translation mechanism (4) is driven by a rotary motor.

7. The automated continuous tofu pressing device according to claim 2, characterized in that: A stabilizing rod (411) is fixed between the two translation frames (41) of the translation mechanism (4).

8. An automated continuous tofu pressing process, characterized in that: The tofu pressing device according to any one of claims 1 to 7 is used in the pressing process, which specifically comprises the following steps: 1) Pressing: using a lifting mechanism (3) and a translation mechanism (4) to stack a plurality of press support mold frames (11) and the turnover baskets (12) therein from bottom to top; 2) Pressing: Design the number of stacked layers and use the tofu’s own weight to press; 3) Squeezing: The lifting mechanism (3) and the translation mechanism (4) are used to lift the penultimate and above squeezing support mold frames (11) and the turnover baskets (12) to a certain height, and the pulling mechanism (2) pulls the bottom squeezing support mold frames (11) and the turnover baskets (12) out of the squeezing station to complete squeezing.

9. The automated continuous tofu pressing process according to claim 8, characterized in that: The step 3) of squeezing also includes: the pulling mechanism (2) pulls out the bottom layer from the multiple layers of the squeezing support mold frame (11), and after the squeezing of the bottom layer is completed, a new layer of squeezing support mold frame (11) and a turnover basket (12) are stacked on the top layer, and the above steps are repeated to realize automatic continuous squeezing.

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