A kind of tofu processing with squeezing water device
Patent Information
- Application Number
- CN202522620523.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-10
- Publication Date
- 2026-10-30
- Estimated Expiration
- 2035-12-10
AI Technical Summary
[0005]针对以上问题，本实用新型的目的在于：提供一种豆腐加工用挤水装置，解决挤水装置多为单工位设计，即单次挤水作业完成后，需停机取出成型豆腐、重新铺放豆腐脑原料，再启动下一轮挤水，作业中断时间长，施压部件多通过单一伸缩杆驱动，缺乏导向限位结构，横向移动时易出现偏移、晃动，导致沥水板与承载盘同轴度误差较大，物料受力不均，最终产品出现局部过干、过湿或破碎现象的问题，当该沥水盘挤水完成后，切换至另一个沥水盘进行挤水作业，同时将完成挤水的沥水盘从定位框架中取出，倒出成型豆腐后重新铺设滤布、装入豆腐脑，循环执行操作，实现挤水作业与物料铺放的并行进行，导向杆为沥水箱提供直线导向，抵消伸缩杆运行中的径向力，保障沥水箱移动过程中的稳定性
[0010]本改进的有益效果为：基底座采用加厚不锈钢板材，用于对基座侧板提供稳定的安装支撑。
Smart Images
Figure CN224920750U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tofu processing technology, specifically to a water-squeezing device for tofu processing. Background Technology
[0002] As a traditional soy product, tofu's processing relies heavily on the "water extraction and shaping" step, which is crucial for determining the product's hardness, elasticity, and texture. The performance of the water extraction device directly impacts production efficiency and product consistency. Currently, tofu water extraction devices on the market are mainly divided into manual, semi-automatic, and fully automatic types. Their core structure typically includes load-bearing components, pressure-applying components, and drainage components. However, in practical applications, the following technical shortcomings still exist:
[0003] Most existing dewatering devices are single-station designs, meaning that after a single dewatering operation is completed, the machine must be stopped to remove the formed tofu, re-lay the tofu curd raw materials, and then start the next round of dewatering. The long downtime results in limited output per unit time.
[0004] The pressure components of existing devices (such as the drain plate) are mostly driven by a single telescopic rod and lack a guide and limiting structure. When moving laterally, they are prone to deviation and shaking, resulting in a large coaxiality error between the drain plate and the bearing plate, uneven force on the material, and the final product exhibiting localized over-drying, over-wetting, or breakage. Utility Model Content
[0005] To address the above problems, the purpose of this utility model is to provide a dewatering device for tofu processing. This solves the problem that most dewatering devices are single-station designs, meaning that after a single dewatering operation, the machine must be stopped to remove the formed tofu, re-lay the tofu curd raw material, and then start the next round of dewatering. This results in long downtime. Furthermore, the pressure components are often driven by a single telescopic rod, lacking a guiding and limiting structure, which easily leads to deviation and swaying during lateral movement. This causes significant coaxiality errors between the drain plate and the bearing plate, uneven material stress, and ultimately, problems such as localized over-drying, over-wetting, or breakage of the final product. Once the dewatering of one drain plate is complete, the process switches to another drain plate for dewatering. Simultaneously, the dewatered drain plate is removed from the positioning frame, the formed tofu is poured out, the filter cloth is re-laid, and tofu curd is added. This cycle repeats, allowing the dewatering operation and material placement to proceed in parallel. The guide rod provides linear guidance to the drain box, counteracting the radial force during the telescopic rod's operation and ensuring the stability of the drain box during movement.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a dewatering device for tofu processing, comprising a platform assembly, a bearing assembly, and a draining assembly. The platform assembly includes an operating table, the bearing assembly includes a draining tray, and the draining assembly includes a draining box, a first telescopic rod, a draining plate, and a second telescopic rod. One end of the operating table is detachably connected to a base via bolts. The top of the base is fixedly connected to a base side plate via full welding. One end of the base side plate is connected to a base top plate via flange bolts. A drainage groove is integrally formed on the inner side of the operating table. An installation groove is milled on the top of the operating table. A positioning frame is positioned and bolted to the top of the operating table via positioning pins. Draining grooves are formed at equal intervals on the lower wall of the draining tray via CNC drilling. A guide rod is slidably connected to the inner side of the draining box via clearance fit. Two guide rods are provided and are parallel to the first telescopic rod. A linkage plate is fixedly connected to the front end of the draining box via welding.
[0007] The beneficial effects of this utility model are as follows: When the drain box moves laterally under the action of the two first telescopic rods, the guide rod provides linear guidance for the drain box, counteracts the radial force during the operation of the telescopic rods, and ensures the stability of the drain box during movement. First, food-grade filter cloth is laid in the two drain trays, and then the solidified tofu curd is evenly spread into the filter cloth. Then, the equipment is started to squeeze water from the material in one of the drain trays. After the water is squeezed out of the drain tray, the other drain tray is switched to squeeze water. At the same time, the drain tray that has been squeezed out is removed from the positioning frame, the formed tofu is poured out, the filter cloth is re-laid, and the tofu curd is put in. The operation is repeated in a cycle to realize the parallel operation of water squeezing and material laying.
[0008] To provide stable mounting support for the base side plates:
[0009] As a further improvement to the above technical solution: there are two operating platforms arranged adjacent to each other, the bottom of the operating platform and the bottom of the base are calibrated to the same horizontal plane by a level, and L-shaped reinforcing ribs are provided at the welding joint between the side plate of the base and the base.
[0010] The beneficial effects of this improvement are: the base plate is made of thickened stainless steel plate, which provides stable installation support for the base side plate.
[0011] To ensure that the water flows along the inclined path of the drainage board into the collection box outside the operating platform, thus achieving centralized collection and recycling of the water:
[0012] As a further improvement to the above technical solution: the inner wall of the mounting groove is detachably connected to a grid mesh via a slot. The grid mesh has a hole diameter of 3mm and is made of food-grade 304 stainless steel. The top view cross-section of the positioning frame is U-shaped, and the frame wall thickness is 5mm. The mounting groove is connected to the drainage groove, which is inclined at 15°. A drainage plate is detachably connected to its inner side via bolts. An arc-shaped guide groove is opened on the surface of the drainage plate.
[0013] The beneficial effects of this improvement are as follows: during the water extraction process, the water flows into the drainage trough after being filtered through the grid screen to remove the soybean residue. It then slides down the drainage board along the inclined direction into the water collection box outside the operating platform, thus achieving centralized collection and recycling of the water.
[0014] To enable the operation to be repeated cyclically, the dewatering process and material placement can be carried out in parallel:
[0015] As a further improvement to the above technical solution: two drain trays are provided. The drain trays are made of food-grade 304 stainless steel and are integrally stamped. The inner wall of the drain tray is detachably connected to an isolation net by a snap-fit method. The mesh size of the isolation net is 100 mesh. The outer wall size of the drain tray and the inner wall size of the positioning frame are transitionally fitted. The bottom of the drain tray is provided with a positioning protrusion that matches the positioning groove of the positioning frame.
[0016] The beneficial effects of this improvement are as follows: When in use, first lay food-grade filter cloth in the two draining trays, then evenly spread the solidified tofu curd into the filter cloth. Then start the equipment to squeeze water out of the material in one of the draining trays. After the water is squeezed out of the draining tray, switch to the other draining tray to squeeze water out. At the same time, remove the draining tray that has been squeezed out from the positioning frame, pour out the formed tofu, lay the filter cloth again, and put in the tofu curd. Repeat the operation to achieve the parallel operation of water squeezing and material placement.
[0017] To drive the two horizontally positioned first telescopic rods to extend and retract synchronously in opposite directions, thereby causing the drain box to move left and right horizontally:
[0018] As a further improvement to the above technical solution: the first telescopic rod is an electric telescopic rod, there are two of them and both are electrically connected to the PLC control cabinet. The two first telescopic rods are symmetrically installed on the side of the two base plates that are close to each other through flange seats. The PLC control cabinet has a built-in synchronous reverse drive program to control the extension and retraction of the two first telescopic rods to always run synchronously in the opposite direction.
[0019] The beneficial effects of this improvement are: when the position of the drain box needs to be adjusted laterally, the PLC control cabinet sends a command to drive the two horizontally set first telescopic rods to extend and retract synchronously in opposite directions, thereby driving the drain box to move left and right in the horizontal direction.
[0020] To ensure the guide rod provides linear guidance for the drain box, counteracts the radial force during the operation of the telescopic rod, and guarantees the stability of the drain box during movement:
[0021] As a further improvement to the above technical solution: the output end of the first telescopic rod away from the base side plate is fastened to the outer wall of the drain box by bolts through a ball joint. Two parallel guide rods are symmetrically arranged at the upper and lower ends of the first telescopic rod. The two ends of the guide rods are welded and fixed to the base side plate. The outer wall of the guide rod is sprayed with a polytetrafluoroethylene wear-resistant coating. The guide rod passes through the guide hole of the drain box and is clearance-fitted with it.
[0022] The beneficial effects of this improvement are: when the drain box moves laterally under the action of the two first telescopic rods, the guide rod provides linear guidance for the drain box, counteracts the radial force during the operation of the telescopic rods, and ensures the stability of the drain box during the movement process.
[0023] To drive the drain plate to move laterally via the first telescopic rod, so as to sequentially squeeze water out of the material in the two drain trays:
[0024] As a further improvement to the above technical solution: the drain plate is made of food-grade 304 stainless steel, and its outer dimensions are in clearance fit with the inner wall dimensions of the drain tray. The bottom of the drain plate has evenly distributed raised textures with a height of 1.5mm.
[0025] The beneficial effects of this improvement are as follows: the material in the drain tray is squeezed out by applying downward pressure through the drain plate. The squeezing pressure is adjusted by the PLC control cabinet. The drain plate is driven to move laterally by the first telescopic rod, so as to squeeze out the material in the two drain trays in turn.
[0026] To ensure the second telescopic rod moves the drain plate downwards at a speed of 0.5-1 cm / s, and after contacting the material, gradually increase the pressure to the set pressure and maintain the pressure for 5-10 minutes:
[0027] As a further improvement to the above technical solution: a handle is fixedly connected to the top of the linkage plate by bolts, and the handle is covered with an anti-slip rubber sleeve. The bottom surface of the linkage plate and the bottom surface of the drain box are machined to be parallel by a milling machine. A second telescopic rod is symmetrically fixedly connected to the bottom of the connection between the drain box and the linkage plate by a flange seat. The second telescopic rod is an electro-hydraulic telescopic rod and is electrically connected to the PLC control cabinet. The output end of the second telescopic rod is bolted to the top of the drain plate through a ball joint.
[0028] The beneficial effects of this improvement are as follows: After the horizontal adjustment of the position of the draining board is completed, the PLC control cabinet starts the operation of the second telescopic rod. The second telescopic rod drives the draining board to move downward at a speed of 0.5-1cm / s. After contacting the material, the pressure is gradually increased to the set pressure and held for 5-10 minutes. After the water is squeezed out, the second telescopic rod drives the draining board to move upward and reset to the initial position.
[0029] In summary, the beneficial effects of this solution are as follows: the guide rod provides linear guidance for the drain box, counteracts the radial force during the operation of the telescopic rod, and ensures the stability of the drain box during movement. After the drain tray has finished squeezing water, it switches to another drain tray for squeezing water. At the same time, the drain tray that has finished squeezing water is removed from the positioning frame, the formed tofu is poured out, the filter cloth is re-laid, and tofu curd is put in. The operation is repeated in a cycle, so that the squeezing operation and the material placement can be carried out in parallel.
[0030] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description
[0031] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0032] Figure 2 for Figure 1 A magnified structural diagram of point A in the middle.
[0033] Figure 3 for Figure 1 A magnified structural diagram at point B in the middle.
[0034] Figure 4 for Figure 1 A magnified structural diagram at point C.
[0035] Figure 5 This is a schematic diagram of the structure of the drain tray of this utility model.
[0036] Figure 6 This is a schematic diagram of the structure of the operating table of this utility model.
[0037] In the diagram: 1. Platform component; 11. Operating table; 12. Base; 13. Base side plate; 131. Reinforcing rib plate; 14. Base top plate; 15. Drainage trough; 16. Mounting groove; 17. Positioning frame; 18. Grating mesh; 19. Drainage board; 191. Guide channel; 2. Bearing component; 21. Drain tray; 22. Drain trough; 23. Isolation net; 3. Drain component; 31. Drain box; 32. Guide rod; 33. First telescopic rod; 34. Linkage plate; 35. Drain board; 36. Second telescopic rod; 37. Handle. Detailed Implementation
[0038] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of this utility model in any way.
[0039] like Figure 1-6As shown, a dewatering device for tofu processing includes a platform assembly 1, a bearing assembly 2, and a draining assembly 3. The platform assembly 1 includes an operating table 11, the bearing assembly 2 includes a draining tray 21, and the draining assembly 3 includes a draining box 31, a first telescopic rod 33, a draining plate 35, and a second telescopic rod 36. One end of the operating table 11 is detachably connected to a base 12 by bolts. The top of the base 12 is fixedly connected to a base side plate 13 by a full welding process. One end of the base side plate 13 is connected to a base top plate 14 by flange bolts. The inner side of the operating table 11 is integrally formed with a drainage groove 15. The top of the operating table 11 is milled to form an installation groove 16. The top of the operating table 11 is positioned by a positioning pin and bolted to a positioning frame 17. The bottom wall of the drain tray 21 is formed with drain grooves 22 at equal intervals by CNC drilling. The inner side of the drain box 31 is slidably connected with a guide rod 32 through clearance fit. There are two guide rods 32, which are parallel to the first telescopic rod 33. The front end of the drain box 31 is fixedly connected with a linkage plate 34 by welding.
[0040] There are two operating platforms 11 arranged adjacent to each other. The bottom of the operating platform 11 and the bottom of the base 12 are calibrated to the same horizontal plane by a level. An L-shaped reinforcing rib plate 131 is provided at the welding point between the base side plate 13 and the base 12. The base 12 is made of thickened stainless steel plate to provide stable installation support for the base side plate 13.
[0041] The inner wall of the mounting groove 16 is detachably connected to a grid 18 via a slot. The grid 18 has a pore size of 3mm and is made of food-grade 304 stainless steel. The top view cross-section of the positioning frame 17 is U-shaped, and the frame wall thickness is 5mm. The mounting groove 16 is connected to the drainage trough 15, which is inclined at 15°. A drainage plate 19 is detachably connected to its inner side via bolts. An arc-shaped guide groove 191 is opened on the surface of the drainage plate 19. When squeezing water, the water flows into the drainage trough 15 after filtering the soybean residue through the grid 18. It then slides down the inclined direction through the guide groove 191 of the drainage plate 19 into the water collection box outside the operating table 11, realizing the centralized collection and recycling of water.
[0042] Two draining trays 21 are provided. The draining trays 21 are made of food-grade 304 stainless steel and are integrally stamped. The inner wall of the draining trough 22 is detachably connected to the isolation net 23 by snap-fit. The isolation net 23 has a mesh count of 100 mesh. The outer wall size of the draining tray 21 is in transition fit with the inner wall size of the positioning frame 17. The bottom of the draining tray 21 is provided with a positioning protrusion that matches the positioning groove of the positioning frame 17. In use, food-grade filter cloth is first laid in the two draining trays 21, and then the solidified tofu curd is evenly spread into the filter cloth. Then the equipment is started to squeeze water out of the material in one of the draining trays 21. After the water is squeezed out of the draining tray 21, the other draining tray 21 is switched to squeeze water out. At the same time, the draining tray 21 that has been squeezed out is removed from the positioning frame 17, the solidified tofu is poured out, the filter cloth is re-laid, and the tofu curd is put in. The operation is repeated to achieve the parallel operation of squeezing water and spreading material.
[0043] The first telescopic rod 33 is an electric telescopic rod, there are two of them and both are electrically connected to the PLC control cabinet. The two first telescopic rods 33 are symmetrically installed on the side of the two base side plates 13 that are close to each other through flange seats. The PLC control cabinet has a built-in synchronous reverse drive program to control the extension and retraction of the two first telescopic rods 33 to always run synchronously in opposite directions. When it is necessary to adjust the use position of the drain box 31 laterally, the PLC control cabinet sends a command to drive the two horizontally set first telescopic rods 33 to extend and retract synchronously in opposite directions, thereby driving the drain box 31 to move left and right in the horizontal direction.
[0044] The output end of the first telescopic rod 33 away from the base side plate 13 is bolted to the outer wall of the drain box 31 through a ball joint. Two parallel guide rods 32 are symmetrically arranged at the upper and lower ends of the first telescopic rod 33. The two ends of the guide rods 32 are welded and fixed to the base side plate 13. The outer wall of the guide rods 32 is coated with a polytetrafluoroethylene wear-resistant coating. The guide rods 32 pass through the guide holes of the drain box 31 and are clearance-fitted with them. When the drain box 31 moves laterally under the action of the two first telescopic rods 33, the guide rods 32 provide linear guidance for the drain box 31, counteract the radial force during the operation of the telescopic rods, and ensure the stability of the drain box 31 during the movement.
[0045] The drain plate 35 is made of food-grade 304 stainless steel. Its outer dimensions are in clearance fit with the inner wall of the drain tray 21. The bottom of the drain plate 35 has evenly distributed raised textures with a height of 1.5mm. The drain plate 35 applies downward pressure to squeeze water out of the material in the drain tray 21. The squeezing pressure is adjusted by the PLC control cabinet. The drain plate 35 is driven to move laterally by the first telescopic rod 33 to squeeze water out of the material in the two drain trays 21 in sequence.
[0046] A handle 37 is bolted to the top of the linkage plate 34. The handle 37 is covered with an anti-slip rubber sleeve. The bottom surface of the linkage plate 34 and the bottom surface of the drain box 31 are machined to be parallel by a milling machine. A second telescopic rod 36 is symmetrically fixed to the bottom of the connection between the drain box 31 and the linkage plate 34 through a flange seat. The second telescopic rod 36 is an electro-hydraulic telescopic rod and is electrically connected to the PLC control cabinet. The output end of the second telescopic rod 36 is bolted to the top of the drain plate 35 through a ball joint. After the lateral adjustment of the position of the drain plate 35 is completed, the PLC control cabinet starts the second telescopic rod 36. The second telescopic rod 36 drives the drain plate 35 to move downward at a speed of 0.5-1cm / s. After contacting the material, the pressure is gradually increased to the set pressure and held for 5-10 minutes. After squeezing out the water, the second telescopic rod 36 drives the drain plate 35 to move upward and reset to the initial position.
[0047] The working principle of this utility model is as follows: In use, food-grade filter cloth is first laid in the two draining trays 21, and then the solidified tofu curd is evenly spread into the filter cloth. The equipment is then started to squeeze water from the material in one of the draining trays 21. After the material in that tray is squeezed, the process is switched to the other tray. Simultaneously, the draining tray 21 is removed from the positioning frame 17, the formed tofu is poured out, the filter cloth is re-laid, and tofu curd is added. This process is repeated cyclically, allowing the squeezing and material placement to proceed in parallel. When the position of the draining box 31 needs to be adjusted laterally, the PLC control cabinet sends a command to drive the two horizontally positioned first telescopic rods 33 to extend and retract synchronously in opposite directions, thereby moving the draining box 31 left and right horizontally. When the draining box 31 moves laterally under the action of the two first telescopic rods 33, the guide rod 32 provides linear guidance for the draining box 31, counteracting the radial force during the telescopic rod movement and ensuring the smooth movement of the draining box 31. To ensure stability, the drain plate 35 applies downward pressure to squeeze water out of the material in the drain tray 21. The squeezing pressure is adjusted by the PLC control cabinet. The first telescopic rod 33 drives the drain plate 35 to move laterally, which is used to squeeze water out of the material in the two drain trays 21 in sequence. After the lateral adjustment of the position of the drain plate 35 is completed, the PLC control cabinet starts the second telescopic rod 36. The second telescopic rod 36 drives the drain plate 35 to move downward at a speed of 0.5-1cm / s. After contacting the material, the pressure is gradually increased to the set pressure and held for 5-10 minutes. After squeezing water out, the second telescopic rod 36 drives the drain plate 35 to move upward and reset to the initial position. During squeezing water out, the water flows into the drainage trough 15 after filtering the soybean residue through the grid 18. It slides down the guide channel 191 of the drainage plate 19 along the inclined direction into the water collection box outside the operating table 11, realizing the centralized collection and recycling of water. The base 12 is made of thickened stainless steel plate to provide stable installation support for the base side plate 13.
[0048] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0049] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of this utility model, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.
Claims
1. A dewatering device for tofu processing, comprising a platform assembly (1), a bearing assembly (2), and a draining assembly (3), wherein the platform assembly (1) includes an operating table (11), the bearing assembly (2) includes a draining tray (21), and the draining assembly (3) includes a draining box (31), a first telescopic rod (33), a draining plate (35), and a second telescopic rod (36), characterized in that: One end of the operating table (11) is detachably connected to a base (12) by bolts. The top of the base (12) is fixedly connected to a base side plate (13) by full welding. One end of the base side plate (13) is connected to a base top plate (14) by flange bolts. The inner side of the operating table (11) is integrally formed with a drainage groove (15). The top of the operating table (11) is milled to form an installation groove (16). The top of the operating table (11) is positioned by a positioning pin and fixed with a positioning frame (17) by bolts. The bottom wall of the drain tray (21) is provided with drain grooves (22) at equal intervals by CNC drilling. The inner side of the drain box (31) is slidably connected to a guide rod (32) by clearance fit. There are two guide rods (32) and they are parallel to the first telescopic rod (33). The front end of the drain box (31) is fixedly connected to a linkage plate (34) by welding.
2. The water-squeezing device for tofu processing according to claim 1, characterized in that: There are two operating tables (11) arranged adjacent to each other. The bottom of the operating table (11) and the bottom of the base (12) are calibrated to the same horizontal plane by a level. An L-shaped reinforcing rib (131) is provided at the welding point between the base side plate (13) and the base (12).
3. The water-squeezing device for tofu processing according to claim 1, characterized in that: The inner wall of the mounting groove (16) is detachably connected to a grid mesh (18) via a slot. The grid mesh (18) has a hole diameter of 3mm and is made of food-grade 304 stainless steel. The top view cross-section of the positioning frame (17) is U-shaped, and the frame wall thickness is 5mm. The mounting groove (16) is connected to the drainage groove (15). The drainage groove (15) is inclined at 15°. A drainage plate (19) is detachably connected to its inner side via bolts. An arc-shaped guide groove (191) is opened on the surface of the drainage plate (19).
4. The water-squeezing device for tofu processing according to claim 1, characterized in that: There are two drain trays (21). The drain trays (21) are made of food-grade 304 stainless steel and are integrally stamped. The inner wall of the drain trough (22) is detachably connected to the isolation net (23) by snap-fit. The isolation net (23) has a mesh count of 100. The outer wall size of the drain tray (21) and the inner wall size of the positioning frame (17) are transitionally fitted. The bottom of the drain tray (21) is provided with a positioning protrusion that matches the positioning groove of the positioning frame (17).
5. The water-squeezing device for tofu processing according to claim 1, characterized in that: The first telescopic rod (33) is an electric telescopic rod. There are two of them, and both are electrically connected to the PLC control cabinet. The two first telescopic rods (33) are symmetrically installed on the side of the two base side plates (13) that are close to each other through flange seats. The PLC control cabinet has a built-in synchronous reverse drive to control the extension and retraction of the two first telescopic rods (33) to always run synchronously in the opposite direction.
6. The water-squeezing device for tofu processing according to claim 1, characterized in that: The output end of the first telescopic rod (33) away from the base side plate (13) is fastened to the outer wall of the drain box (31) by a ball joint. Two parallel guide rods (32) are symmetrically arranged at the upper and lower ends of the first telescopic rod (33). The two ends of the guide rods (32) are welded and fixed to the base side plate (13). The outer wall of the guide rods (32) is coated with a polytetrafluoroethylene wear-resistant coating. The guide rods (32) pass through the guide hole of the drain box (31) and are clearance-fitted with it.
7. The water-squeezing device for tofu processing according to claim 1, characterized in that: The drain plate (35) is made of food-grade 304 stainless steel. Its outer dimensions are in clearance fit with the inner wall dimensions of the drain tray (21). The bottom of the drain plate (35) has evenly distributed raised textures with a height of 1.5mm.
8. The water-squeezing device for tofu processing according to claim 1, characterized in that: The top of the linkage plate (34) is fixedly connected to a handle (37) by bolts. The handle (37) is covered with an anti-slip rubber sleeve. The bottom surface of the linkage plate (34) and the bottom surface of the drain box (31) are machined to be parallel by a milling machine. The bottom of the connection between the drain box (31) and the linkage plate (34) is symmetrically fixedly connected to a second telescopic rod (36) by a flange seat. The second telescopic rod (36) is an electric hydraulic telescopic rod and is electrically connected to the PLC control cabinet. The output end of the second telescopic rod (36) is bolted to the top of the drain plate (35) through a ball joint.