Large-scale artificial bean curd production line

Abstract

The utility model discloses a large-scale artificial tofu production line which comprises a tofu pudding rotary forming device, an uncongealed bean curd feeding device, an intermittent transmission device A, a tofu basket, a profiling device and a control electric box, the tofu pudding rotary forming device is of a rotary type and is used for mixing and forming soybean milk and a coagulator into tofu pudding in batches; the beancurd jelly feeding device is arranged at a process outlet of the beancurd jelly rotary forming device and used for digging and placing beancurd jelly into beancurd baskets, the intermittent conveying device A is used for horizontally moving the beancurd baskets containing the beancurd jelly, at least one set of profiling device is vertically placed at the tail end of the intermittent conveying device A, and the profiling devices are used for moving the beancurd baskets containing the beancurd jelly in a turning mode. The control electric box is fixed to the bean curd jelly feeding device, and a PLC control system is arranged in the control electric box and used for controlling the bean curd jelly rotary forming device, the bean curd jelly feeding device, the intermittent conveying device A and the profiling device to work. The whole-process mechanical production and control are realized, the manual physical output is reduced, and the bean curd production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of tofu production equipment, and in particular to a large-scale artificial tofu production line. Background Technology

[0002] The tofu-making process is the core of traditional soy product processing, mainly divided into three stages: soy milk preparation, protein coagulation, and molding / pressing. In the protein coagulation stage, the soy milk is cooled to 75-85℃, and a coagulant solution is slowly poured in while stirring. The metal ions in the coagulant neutralize the negative charge on the surface of the soy protein, disrupting colloidal stability and forming a protein network structure that encapsulates water and fat, forming tofu curds. In the molding / pressing stage, the tofu curds are gently stirred with a spoon to break up some of the protein network, causing the yellow whey to separate and reducing the water content of the tofu. The tofu curds are then quickly scooped into a mold, covered with a cloth, and the corners are smoothed to prevent wrinkles before being pressed and shaped. After pressing, the tofu is left to stand for 1-2 hours to stabilize its structure.

[0003] When adding coagulant solution to soy milk, it needs to be added manually while stirring. The amount of coagulant added depends on the experience of the operator, and the stirring speed / time is difficult to quantify, which can easily lead to uneven coagulation and incomplete separation of soy milk and white matter. Quickly scooping the tofu into the mold requires a lot of manual labor, resulting in low tofu production efficiency. Moreover, the pressing force and time are entirely dependent on feel, and the mold needs to be tapped manually when demolding, which is labor-intensive and can easily damage the tofu, affecting the yield of finished tofu. Utility Model Content

[0004] The purpose of this invention is to provide a large-scale artificial tofu production line that solves problems such as difficulty in controlling the amount of coagulant added and the pressing force and time, high labor consumption, reduced tofu production efficiency, and reduced tofu yield.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A large-scale simulated artificial tofu production line includes a tofu pudding rotary forming device, a coagulant feeding device, an intermittent conveying device A, tofu baskets, a pressing device, and a control box. The tofu pudding rotary forming device is a rotary type used to mix soy milk and coagulant in batches to form tofu pudding. The coagulant feeding device is located at the process exit of the tofu pudding rotary forming device and is used to scoop the tofu pudding into the tofu basket. The intermittent conveying device A is used to move the tofu basket containing the tofu pudding horizontally. At least one set of pressing devices is placed vertically at the end of the intermittent conveying device A. The pressing devices are used to move the tofu basket containing the tofu pudding at an angle and slowly squeeze the tofu pudding into tofu. The control box is fixed on the coagulant feeding device and is equipped with a PLC control system for controlling the operation of the tofu pudding rotary forming device, the coagulant feeding device, the intermittent conveying device A, and the pressing device.

[0007] Preferably, the tofu pudding rotary forming device includes a rotating base, a rotating cylinder, a tofu pudding forming bucket, a fixed frame, a slurry application mechanism, a coagulation mechanism, a lifting and stirring device, and a lifting and crushing device. The rotating base is supported by the ground, and a rotating cylinder is installed at the top center. The rotating cylinder rotates clockwise when viewed from above. Multiple tofu pudding forming buckets are installed on the outer circumference of the rotating cylinder and rotate with the rotating cylinder. The fixed frame is located above the rotating cylinder and is fixedly supported by the rotating base at its center. The slurry application mechanism and the coagulation mechanism are installed on the fixed frame. A lifting and stirring device is installed above the tofu pudding forming bucket at the initial position and is mounted on the fixed frame. A lifting and crushing device is installed above the tofu pudding forming bucket at the second-to-last position and is mounted on the fixed frame.

[0008] Preferably, the rotating base includes a drive motor, a fixed ring, a bearing, and an internal gear ring. The drive motor is fixed to the rotating base, the fixed ring is fixed to the center of the top surface of the rotating base, the bearing is interference-fitted with the inner wall of the fixed ring, the internal gear ring is interference-fitted with the inner wall of the bearing, the top of the internal gear ring is fixed to the bottom of the rotating cylinder, and a gear is installed at the output end of the drive motor to mesh with the internal gear ring.

[0009] Preferably, the soy milk feeding mechanism includes a soy milk bucket, a soy milk inlet pipe, a butterfly valve A, and a soy milk outlet pipe. The soy milk bucket is fixed on a fixed frame, and the top is connected to the soy milk inlet pipe. A butterfly valve A is installed at the bottom outlet of the soy milk bucket, and the butterfly valve A is connected to the soy milk outlet pipe. The end of the soy milk outlet pipe is located above the tofu forming bucket in the initial position.

[0010] Preferably, the coagulation mechanism includes a coagulant tank, an inlet pipe, a stirring motor A, a butterfly valve B, and an outlet pipe. The coagulant tank is fixed on a fixed frame, and an inlet pipe is connected to the top. A stirring motor A is installed at the center of the top of the coagulant tank to keep the coagulant inside the tank in a flowing state. A butterfly valve B is installed at the bottom outlet of the coagulant tank, and an outlet pipe is connected to the butterfly valve B. The end of the outlet pipe is located above the tofu forming tank in the initial position.

[0011] Preferably, the lifting and stirring device includes a heightening frame, a lifting cylinder A, a stirring lifting plate, a stirring motor B, and a stirring shaft. The heightening frame is vertically fixed on a fixed frame. A vertical lifting cylinder A is fixedly installed on the top of the heightening frame. A horizontal stirring lifting plate is fixed to the bottom output end of the lifting cylinder A. The stirring motor B is installed on the stirring lifting plate. The stirring shaft is coaxially connected to the bottom output end of the stirring motor B. The stirring shaft is located above the tofu forming bucket in the initial position.

[0012] Preferably, the lifting and crushing device includes a lifting cylinder B and a grid plate. The lifting cylinder B is vertically fixed on the fixed frame, and a horizontal grid plate is fixed at the bottom output end of the lifting cylinder B. The grid plate is located above the tofu forming bucket at the second to last position.

[0013] Preferably, the brain-boosting device includes a brain-boosting frame, slide rails, a rack, a brain-boosting moving mechanism, and a brain-digging mechanism. The brain-boosting frame has an L-shaped structure, with its top horizontal end fixedly connected to a fixed frame, and below this connection is the bean curd forming bucket at the end position. The vertical end of the brain-boosting frame is supported by the ground. The control box is bolted to the vertical part of the brain-boosting frame. Two slide rails in the same direction are fixed to the inner side of the top horizontal part of the brain-boosting frame, and a rack in the same direction is fixed to the top. The brain-boosting moving mechanism is installed on the slide rails, and the brain-digging mechanism is installed below the brain-boosting moving mechanism. The brain-boosting moving mechanism includes a horizontal moving plate, a slider, a horizontal moving motor, a horizontal transmission gear, a lifting cylinder C, and a guide rod. Sliders are fixed on both sides of the bottom of the horizontal moving plate, and the sliders slide along the slide rails. A horizontal moving motor is fixed to the top of the horizontal moving plate, and a horizontal transmission gear is fixed to the output end of the horizontal moving motor. The horizontal transmission gear meshes with the rack. A vertical lifting cylinder C is fixed to the center of the top surface of the horizontal moving plate, and the bottom of the lifting cylinder C outputs... The output end and the bottom of the guide rod are fixed to the top of the brain-digging mechanism. The guide rod is slidably connected to the guide cylinder installed on the horizontal moving plate. The brain-digging mechanism includes a lifting plate, a U-shaped plate, a connecting frame, a brain-digging scoop, a rotating shaft, a brain-digging motor, a drive sprocket, a driven sprocket, and a transmission sprocket. The lifting plate is fixed to the bottom of the guide rod. A U-shaped plate is fixed in the middle of the lifting plate. The U-shaped plate is fixed to the bottom output end of the lifting cylinder C. Vertical connecting frames are fixed to the bottom of both sides of the lifting plate. Bearing seats are fixed to the bottom of the two connecting frames. A rotating shaft is fixed to the top of the brain-digging scoop. The two ends of the rotating shaft are installed with the bearing seats at the bottom of the connecting frames. A brain-digging motor is fixed to the top of the lifting plate. A drive sprocket is fixedly installed at the output end of the brain-digging motor. Driven sprockets are fixedly installed at both ends of the rotating shaft. Two transmission sprockets are coaxially connected to the top of the lifting plate through the bearing seats. One side of the brain-digging scoop is driven by a chain of drive sprocket, driven sprocket, and transmission sprocket. The other side is driven by a chain of driven sprocket and transmission sprocket. An infrared distance sensor is fixedly installed on one side of the connecting frame.

[0014] Preferably, the intermittent transmission device A includes a transmission bracket, support bars, a transmission cylinder, a connecting plate, a transmission plate, a pusher bar, a central shaft, a limiting shaft, and support rollers. The initial conveying end of the transmission bracket is located below the moving path of the tofu basket. Multiple U-shaped support bars are fixed to the top surface of the transmission bracket to support the tofu basket. A transmission cylinder is fixed to the top surface of the transmission bracket. A connecting plate is vertically fixed to the output end of the transmission cylinder. Transmission plates are vertically fixed to both ends of the connecting plate. The transmission plate is in the same direction as the support bars and is lower than the support bars. A pusher bar is installed on the side of the transmission plate to push the tofu basket to move on the support bars. The middle part of the pusher bar is installed to the side of the transmission plate through the central shaft, allowing the pusher bar to rotate. The pusher bar is lighter at the top and heavier at the bottom, maintaining a vertical state by its own weight. A limiting shaft is fixed next to the pusher bar on the side of the transmission plate. The lower part of the pusher bar is obstructed by the limiting shaft and can only rotate in the direction of the tofu basket's movement.

[0015] Preferably, the pressing device includes an intermittent conveying device B, a gantry frame, a basket-pulling cylinder, a pulling plate, a lifting cylinder D, and a pressure plate. The intermittent conveying device B has the same structure as the intermittent conveying device A. The initial end of the intermittent conveying device B is perpendicular to the end end of the intermittent conveying device A. Multiple gantry frames are welded to the top of the intermittent conveying device B. A horizontal basket-pulling cylinder is fixed on the first gantry frame. A pulling plate is fixed to the output end of the basket-pulling cylinder for pulling the tofu basket on the support bar onto the intermittent conveying device B. Vertical lifting cylinders D are fixed on the subsequent gantry frames. A horizontal pressure plate is fixed to the bottom output end of the lifting cylinder D. The pressure plate is used to press down the wrapped tofu to form tofu.

[0016] This utility model has the following beneficial effects:

[0017] 1. The soybean milk and coagulant are added quantitatively through the feeding and coagulation mechanisms of the soybean curd rotation forming device, controlled by a butterfly valve. The mechanical stirring of the stirring shaft quantifies the stirring speed and time, ensuring uniform coagulation and thorough separation of soybeans and white matter. With the help of the rotating base, multiple soybean curd forming buckets can be coagulated in batches sequentially, accelerating production efficiency. The lifting cylinder B crushes the soybean curd by pressing the grid plate from top to bottom, breaking down part of the protein network and promoting the precipitation of yellow soy milk, reducing the water content of the tofu. The entire process is mechanized and controlled, reducing manual labor consumption.

[0018] 2. The scooping spoon of the tofu-collecting device is raised and lowered by the lifting cylinder C. With the help of the infrared distance sensor, it can easily reach into the tofu-forming bucket. The scooping spoon is rotated by the scooping motor to scoop the tofu. The horizontal movement motor drives the scooping spoon to move horizontally, and the tofu is put from the tofu-forming bucket into the tofu basket. The fully automatic mechanized operation replaces the manual scooping of tofu, speeds up the tofu production efficiency, and reduces the consumption of manual labor.

[0019] 3. Intermittent transmission device A can intermittently move the tofu basket containing the tofu curd through the transmission cylinder, making it easy to move the tofu basket to the pressing device. The pressing plate of the pressing device can be pressed down by the lifting cylinder D to press and shape the tofu curd, replacing manual pressing, reducing physical labor consumption, and speeding up the tofu production efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the external structure of the tofu pudding rotary forming device of this utility model;

[0022] Figure 3 This is a schematic diagram of the rotating base structure of this utility model;

[0023] Figure 4 This is a front view of the tofu pudding rotary forming device of this utility model;

[0024] Figure 5 This is a schematic diagram showing the connection between the tofu pudding rotary forming device and the tofu pudding device of this utility model;

[0025] Figure 6 This is a front view schematic diagram of the brain-moving mechanism and brain-digging mechanism of this utility model;

[0026] Figure 7 This is a schematic diagram of the chain drive on the left side of the brain-digging scoop of this utility model;

[0027] Figure 8 This is a schematic diagram of the chain drive on the right side of the brain-digging scoop of this utility model;

[0028] Figure 9 This is a schematic diagram of the external structure of the intermittent transmission device A of this utility model;

[0029] Figure 10 This is a side view of the intermittent transmission device A of this utility model;

[0030] Figure 11 This is a schematic diagram showing the positions of the transmission plate and the support roller of this utility model;

[0031] Figure 12 This is a utility model Figure 11 Enlarged view of A in the middle;

[0032] Figure 13 This is a schematic diagram of the external structure of the forming device of this utility model;

[0033] Icons: 1. Tofu pudding rotary forming device; 11. Rotating base; 111. Drive motor; 112. Fixing ring; 113. Bearing; 114. Internal gear ring; 12. Rotating cylinder; 13. Tofu pudding forming bucket; 14. Fixing frame; 15. Slurry feeding mechanism; 151. Soy milk bucket; 152. Slurry inlet pipe; 153. Butterfly valve A; 154. Slurry outlet pipe; 16. Coagulation mechanism; 161. Coagulant bucket; 162. Coagulant inlet pipe; 163. 164. Stirring motor A; 165. Butterfly valve B; 17. Discharge pipe; 18. Lifting and stirring device; 171. Elevating frame; 172. Lifting cylinder A; 173. Stirring lifting plate; 174. Stirring motor B; 175. Stirring shaft; 18. Lifting and crushing device; 181. Lifting cylinder B; 182. Grid plate; 2. Upper brain device; 21. Upper brain frame; 22. Slide rail; 23. Rack; 24. Upper brain moving mechanism; 25. 1. Horizontal moving plate; 242. Slider; 243. Horizontal moving motor; 244. Horizontal transmission gear; 245. Lifting cylinder C; 246. Guide rod; 25. Brain-digging mechanism; 251. Lifting plate; 252. U-shaped plate; 253. Connecting frame; 254. Brain-digging scoop; 255. Rotating shaft; 256. Brain-digging motor; 257. Drive sprocket; 258. Driven sprocket; 259. Transmission sprocket; 26. Infrared distance 3. Sensor; 4. Intermittent transmission device A; 5. Transmission bracket; 6. Support bar; 7. Transmission cylinder; 8. Connecting plate; 9. Transmission plate; 10. Basket pusher; 11. Central shaft; 2. Limiting shaft; 32. Support roller; 4. Tofu basket; 5. Forming device; 6. Intermittent transmission device B; 7. Gantry frame; 8. Basket puller cylinder; 9. Pulling plate; 10. Lifting cylinder D; 11. Pressing plate; 22. Control box. Detailed Implementation

[0034] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] like Figure 1-13As shown, in this embodiment, a large-scale simulated artificial tofu production line includes a tofu rotary forming device 1, a coagulant device 2, an intermittent conveying device A3, a tofu basket 4, a pressing device 5, and a control box 6. The tofu rotary forming device 1 is a rotary type, used to mix soy milk and coagulant in batches to form tofu. The coagulant device 2 is located at the process exit of the tofu rotary forming device 1, used to scoop out the tofu and place it into the tofu basket 4 lined with a cloth. The intermittent conveying device A3 is used to move the tofu basket 4 containing the tofu horizontally. At least one set of pressing devices 5 is placed vertically at the end of the intermittent conveying device A3. The pressing devices 5 are used to move the tofu basket 4 containing the tofu at an angle and slowly squeeze the tofu into tofu. The control box 6 is fixed on the coagulant device 2 and is equipped with a PLC control system to control the operation of the tofu rotary forming device 1, the coagulant device 2, the intermittent conveying device A3, and the pressing device 5.

[0037] The tofu pudding rotary forming device 1 includes a rotating base 11, a rotating cylinder 12, a tofu pudding forming bucket 13, a fixed frame 14, a slurry application mechanism 15, a coagulation mechanism 16, a lifting and stirring device 17, and a lifting and crushing device 18. The rotating base 11 is supported by threaded support feet and has a rotating cylinder 12 installed at its top center. The rotating cylinder 12 rotates clockwise when viewed from above. Multiple tofu pudding forming buckets 13 are installed on the outer circumference of the rotating cylinder 12 and rotate with it. The fixed frame 14 is located above the rotating cylinder 12 and is fixed to the top center of the rotating base 11 by a welded structure, forming a cantilever support frame. The slurry application mechanism 15 and the coagulation mechanism 16 are installed on the fixed frame 14. The lifting and stirring device 17 is installed above the tofu pudding forming bucket 13 at the initial position and is mounted on the fixed frame 14. The lifting and crushing device 18 is installed above the tofu pudding forming bucket 13 at the second-to-last position and is mounted on the fixed frame 14. The rotation of the base 11 and the cylinder 12 enables the lifting and stirring device 17 and the lifting and crushing device 18 to perform multi-station parallel operation on the tofu forming bucket 13, thereby accelerating the tofu forming efficiency.

[0038] The rotating base 11 includes a drive motor 111, a fixed ring 112, a bearing 113, and an internal gear ring 114. The drive motor 111 is bolted to the rotating base 11. The fixed ring 112 is fixed to the center of the top surface of the rotating base 11. The bearing 113 is interference-fitted with the inner wall of the fixed ring 112. The internal gear ring 114 is interference-fitted with the inner wall of the bearing 113. The top of the internal gear ring 114 is fixed to the bottom of the rotating cylinder 12. A gear is installed at the output end of the drive motor 111 and meshes with the internal gear ring 114, causing the rotating cylinder 12 and the bean curd forming bucket 13 to rotate in sequence. The drive motor 111 is a servo motor, which is wired to the control box 6. It sends pulse signals through the PLC system to control the rotation angle and speed of the rotating cylinder 12 to match the process cycle.

[0039] The soy milk feeding mechanism 15 includes a soy milk bucket 151, a soy milk inlet pipe 152, a butterfly valve A153, and a soy milk outlet pipe 154. The soy milk bucket 151 is fixed on the fixing frame 14, and the soy milk inlet pipe 152 is connected to the top. A butterfly valve A153 is installed at the bottom outlet of the soy milk bucket 151, and the soy milk outlet pipe 154 is connected to the butterfly valve A153. The end of the soy milk outlet pipe 154 is located above the tofu forming bucket 13 at the initial position. At the initial position, the soy milk feeding mechanism 15 injects soy milk quantitatively through the butterfly valve A153, and the coagulation mechanism 16 injects a fluid coagulant synchronously through the butterfly valve B164.

[0040] The coagulation mechanism 16 includes a coagulant tank 161, an inlet pipe 162, a stirring motor A163, a butterfly valve B164, and an outlet pipe 165. The coagulant tank 161 stores coagulant, which can be brine or gypsum. The coagulant tank 161 is fixed on a mounting frame 14, and the inlet pipe 162 is connected to the top. The stirring motor A163 is installed at the center of the top of the coagulant tank 161 to keep the coagulant inside the coagulant tank 161 in a flowing state. The butterfly valve B164 is installed at the bottom outlet of the coagulant tank 161, and the outlet pipe 165 is connected to the butterfly valve B164. The end of the outlet pipe 165 is located above the tofu forming tank 13 in the initial position.

[0041] Specifically, the stirring motor A163, butterfly valve A153, and butterfly valve B164 are connected to the control box 6 by wires. The opening and closing time is controlled by the PLC system. The PLC outputs analog signals to adjust the opening degree of butterfly valve A153 and butterfly valve B164, so as to realize the quantitative injection of soy milk and coagulant into the tofu forming bucket 13.

[0042] The lifting and stirring device 17 includes a heightening frame 171, a lifting cylinder A172, a stirring lifting plate 173, a stirring motor B174, and a stirring shaft 175. The heightening frame 171 is vertically fixed on the fixed frame 14. The vertical lifting cylinder A172 is fixedly installed on the top of the heightening frame 171. The horizontal stirring lifting plate 173 is fixed to the bottom output end of the lifting cylinder A172. The stirring motor B174 is installed on the stirring lifting plate 173. The stirring shaft 175 is coaxially connected to the bottom output end of the stirring motor B174. The stirring shaft 175 is located above the tofu forming bucket 13 in the initial position, and fully mixes the soy milk and coagulant to form tofu gel. Then, the tofu forming bucket 13 rotates with the rotating drum 12 to the subsequent work station.

[0043] Specifically, the stirring motor B174 is connected to the control box 6 by wires. The lifting cylinder A172 and the stirring motor B174 are controlled by the PLC system. The PLC outputs digital signals to control the on and off of the solenoid valve, driving the lifting cylinder A172 to rise and fall. The PLC outputs frequency converter commands to adjust the speed and time of the stirring motor B174, intermittently controlling the rotation rhythm of the tofu forming bucket 13, and quantifying the stirring speed and time of the stirring shaft 175, so that the tofu coagulates evenly and the bean curd is completely separated.

[0044] The lifting and crushing device 18 includes a lifting cylinder B181 and a grid plate 182. The lifting cylinder B181 is vertically fixed on the fixed frame 14. A horizontal grid plate 182 is fixed at the bottom output end of the lifting cylinder B181. The grid plate 182 is located above the bean curd forming barrel 13 at the second to last position. The PLC triggers the lifting cylinder B181 to lift and lower according to the station signal of the rotating cylinder 12, further crushing the bean curd to form a fine structure, breaking down part of the protein network, promoting the precipitation of yellow whey, reducing the water content of the tofu, and preparing for subsequent pressing.

[0045] The brain-boosting device 2 includes a brain-boosting frame 21, slide rails 22, racks 23, a brain-boosting moving mechanism 24, and a brain-digging mechanism 25. The brain-boosting frame 21 has an L-shaped structure, with its top horizontal end fixedly connected to a fixed frame 14, and below this connection is the tofu-forming bucket 13 at the end position. The vertical end of the brain-boosting frame 21 is supported by the ground. The control box 6 is bolted to the vertical part of the brain-boosting frame 21. Two slide rails 22 in the same direction are fixed to the inner side of the top horizontal part of the brain-boosting frame 21, and racks 23 in the same direction are fixed to the top. The brain-boosting moving mechanism 24 is installed on the slide rails 22, and the brain-digging mechanism 25 is installed below the brain-boosting moving mechanism 24. The brain-boosting moving mechanism 24 includes... The system comprises a horizontal moving plate 241, a slider 242, a horizontal moving motor 243, a horizontal transmission gear 244, a lifting cylinder C245, and a guide rod 246. Slider 242 is fixed to both sides of the bottom of the horizontal moving plate 241 and slides along a slide rail 22. A horizontal moving motor 243 is fixed to the top of the horizontal moving plate 241, and a horizontal transmission gear 244 is fixed to the output end of the horizontal moving motor 243. The horizontal transmission gear 244 meshes with a rack 23. A vertical lifting cylinder C245 is fixed to the center of the top surface of the horizontal moving plate 241. The bottom output end of the lifting cylinder C245 and the bottom of the guide rod 246 are both connected to the top of the brain-digging mechanism 25. The guide rod 246 is fixed to the horizontal moving plate 241, and the guide cylinder installed on the horizontal moving plate 241 is slidably connected vertically. The brain-digging mechanism 25 includes a lifting plate 251, a U-shaped plate 252, a connecting frame 253, a brain-digging scoop 254, a rotating shaft 255, a brain-digging motor 256, a driving sprocket 257, a driven sprocket 258, and a transmission sprocket 259. The lifting plate 251 is fixed to the bottom of the guide rod 246. The U-shaped plate 252 is fixed to the middle of the lifting plate 251. The U-shaped plate 252 is fixed to the bottom output end of the lifting cylinder C245. Vertical connecting frames 253 are fixed to the bottom of both sides of the lifting plate 251. Bearing seats are fixed to the bottom of the two connecting frames 253. The brain-digging scoop 254... 4. A rotating shaft 255 is fixed at the top. Both ends of the rotating shaft 255 are installed with bearing seats at the bottom of the connecting frame 253. A brain-digging motor 256 is fixed at the top of the lifting plate 251. A drive sprocket 257 is fixedly installed at the output end of the brain-digging motor 256 via a key. Driven sprockets 258 are fixedly installed at both ends of the rotating shaft 255. Two transmission sprockets 259 are coaxially connected to the top of the lifting plate 251 via bearing seats. One side of the brain-digging scoop 254 is driven by a chain consisting of the drive sprocket 257, the driven sprocket 258, and the transmission sprocket 259. The other side is driven by a chain consisting of the driven sprocket 258 and the transmission sprocket 259. An infrared distance sensor 26 is fixedly installed on one side of the connecting frame 253.

[0046] Specifically, the horizontal moving motor 243 and the digging motor 256 are respectively connected to the control box 6 by wires. When the horizontal transmission gear 244 moves along the rack 23, the PLC sends a pulse command to drive the horizontal moving motor 243, so that the digging scoop 254 moves back and forth accurately between the tofu forming bucket 13 at the end station and the tofu basket 4 at the initial position. The lifting cylinder C245 outputs a digital signal to control the stroke of the solenoid valve according to the height parameter of the tofu forming bucket 13 through the PLC. Combined with the positioning of the infrared distance sensor 26, the infrared distance sensor 26 feeds back the position deviation, and the PLC corrects the moving distance. The digging motor 256 drives the sprocket chain drive to flip the digging scoop 254 through the control of the PLC. The digging scoop 254 cuts in at 45° to accurately dig out the tofu in the tofu forming bucket 13 at the end station. The tofu is poured into the tofu basket 4 with a cloth covering at the initial end of the intermittent transmission device A3, and the four corners of the cloth are folded over to cover the top of the tofu by manual labor.

[0047] The intermittent conveying device A3 includes a conveying bracket 31, support bars 32, a conveying cylinder 33, a connecting plate 34, a conveying plate 35, a basket pusher 36, a central shaft 37, a limiting shaft 38, and a support roller 39. The initial conveying end of the conveying bracket 31 is located below the moving path of the tofu scoop 254. Multiple U-shaped support bars 32 are fixed to the top surface of the conveying bracket 31 to support the tofu basket 4. A conveying cylinder 33 is fixed to the top surface of the conveying bracket 31. The PLC outputs pulse signals to control the extension and retraction frequency of the conveying cylinder 33, matching the pressing station cycle. A connecting plate 34 is vertically fixed to the output end of the conveying cylinder 33, and conveying plates 35 are vertically fixed to both ends of the connecting plate 34. The transmission plate 35 is aligned with the support bar 32 and is lower than the support bar 32. A pusher bar 36 is installed on the side of the transmission plate 35 to push the tofu basket 4 on the support bar 32. The middle part of the pusher bar 36 is installed on the side of the transmission plate 35 through the central shaft 37, so that the pusher bar 36 can rotate. The pusher bar 36 is lighter at the top and heavier at the bottom, and maintains a vertical state by its own weight. A limit shaft 38 is fixed next to the pusher bar 36 on the side of the transmission plate 35. The lower part of the pusher bar 36 is obstructed by the limit shaft 38 and can only rotate in the direction of movement of the tofu basket 4. The transmission cylinder 33 pushes the pusher bar 36 and uses the gravity limit shaft 38 to achieve unidirectional pushing, gradually sending the tofu basket 4 to the pressing station.

[0048] The pressing device 5 includes an intermittent conveying device B51, a gantry frame 52, a basket-pulling cylinder 53, a pulling plate 54, a lifting cylinder D55, and a pressure plate 56. The intermittent conveying device B51 has the same structure as the intermittent conveying device A3. The initial end of the intermittent conveying device B51 is perpendicular to the end end of the intermittent conveying device A3. Multiple gantry frames 52 are welded to the top of the intermittent conveying device B51. A horizontal basket-pulling cylinder 53 is fixed on the first gantry frame 52. A pulling plate 54 is fixed to the output end of the basket-pulling cylinder 53 for pulling the tofu basket 4 on the support bar 32 onto the intermittent conveying device B51. Vertical lifting cylinders D55 are fixed to the subsequent gantry frames 52. A horizontal pressure plate 56 is fixed to the bottom output end of the lifting cylinder D55. The pressure plate 56 is used to press down the wrapped tofu curd. Through the stepping movement of the intermittent conveying device B51, the tofu curd is dehydrated in a gradient from light to heavy, eventually forming a dense tofu block.

[0049] Specifically, the PLC drives the basket-pulling cylinder 53 to move according to the driving frequency of the transmission cylinder 33 of the intermittent transmission device A3. That is, when the tofu basket 4 moves to the docking position with the intermittent transmission device B51, the cylinder rod of the basket-pulling cylinder 53 changes from the extended state to the retracted state, so that the corresponding tofu basket 4 is pulled into the intermittent transmission device B51 by the pull plate 54. The PLC drives each lifting cylinder D55 to rise and fall according to the preset pressure, and the intermittent transmission device B51 intermittently moves the tofu basket 4 to each pressure plate 56.

[0050] The working principle of this utility model is as follows:

[0051] Tofu Forming: Soy milk is quantitatively injected into the initial tofu forming tank 13 through the butterfly valve A153 from the soy milk tank 151. The coagulant tank 161 injects flowing coagulant through the butterfly valve B164 simultaneously. The stirring motor A163 maintains the fluidity of the coagulant. The stirring shaft 175 is lowered to the tofu forming tank 13 through the lifting cylinder A172. The stirring motor B174 mixes the soy milk and coagulant at a preset speed / time to form a uniform tofu gel. The rotating base 11 drives the internal gear ring 114 through the drive motor 111, which drives the rotating cylinder 12 to rotate clockwise at a set rhythm. When the tofu forming tank 13 rotates to the second to last position, the grid plate 182 of the lifting crushing device 18 is pressed down by the lifting cylinder B181 to crush the internal network structure of the tofu, promote the precipitation of yellow soy milk, and reduce the water content.

[0052] Automatic scooping of tofu pudding: The scoop 254 is driven by the horizontal moving motor 243 to move the horizontal transmission gear 244 along the rack 23, so that the scoop 254 moves to the top of the tofu pudding forming bucket 13 at the end station. The lifting cylinder C245 moves the scoop 254 down, and with the help of the infrared distance sensor 26, the scoop 254 moves to a predetermined distance from the surface of the tofu pudding. The scooping motor 256 controls the scoop 254 to cut into the tofu pudding at a 45° angle to scoop the tofu pudding through the sprocket and chain drive. The lifting cylinder C245 moves the scoop 254 up, and the horizontal moving motor 243 drives the horizontal transmission gear 244 to move the scoop 254 horizontally to the initial end of the intermittent transmission device A3. The tofu pudding is poured into the tofu basket 4 lined with a cloth, and the cloth is manually folded to cover the tofu pudding.

[0053] Intermittent transfer of tofu baskets: The transfer cylinder 33 pushes the pusher bar 36 to move forward. Under the influence of the limiting shaft 38, it pushes the tofu basket 4 to move a certain distance. When the pusher bar 36 moves in the opposite direction, it is blocked by the next tofu basket 4 and rotates. It passes at an angle from the bottom of the tofu basket 4. When it reaches the outside of the next tofu basket 4, it is subjected to gravity and the pusher bar 36 returns to vertical. The operation is repeated, and multiple tofu baskets 4 are intermittently pushed to the pressing device 5 station along the support bar 32.

[0054] Pressure shaping: The basket cylinder 53 transfers the tofu basket 4 from the intermittent conveying device A3 to the intermittent conveying device B51 through the pull plate 54. The intermittent conveying device B51 moves the tofu basket 4 step by step, passing through the lifting cylinders D55 on multiple gantry frames 52 in sequence. Each pressure plate 56 presses down on the tofu curd in order from light to heavy, realizing gradient dehydration and finally forming dense tofu blocks.

[0055] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A large-scale simulated artificial tofu production line, characterized in that, The device includes a tofu pudding rotary forming device (1), a coagulant device (2), an intermittent transmission device A (3), a tofu basket (4), a pressing device (5), and a control box (6). The tofu pudding rotary forming device (1) is a rotary device used to mix soy milk and coagulant in batches to form tofu pudding. The coagulant device (2) is located at the process exit of the tofu pudding rotary forming device (1) and is used to scoop the tofu pudding into the tofu basket (4). The intermittent transmission device A (3) is used to move the tofu basket (4) containing the tofu pudding horizontally. At least one set of pressing devices (5) is placed vertically at the end of the intermittent transmission device A (3). The pressing devices (5) are used to move the tofu basket (4) containing the tofu pudding at an angle and slowly squeeze the tofu pudding into tofu. The control box (6) is fixed on the coagulant device (2) and is equipped with a PLC control system to control the operation of the tofu pudding rotary forming device (1), the coagulant device (2), the intermittent transmission device A (3), and the pressing device (5).

2. The large-scale artificial tofu production line according to claim 1, characterized in that, The tofu pudding rotary forming device (1) includes a rotating base (11), a rotating cylinder (12), a tofu pudding forming bucket (13), a fixing frame (14), a slurry feeding mechanism (15), a coagulation mechanism (16), a lifting and stirring device (17), and a lifting and crushing device (18). The rotating base (11) is supported by the ground, and the rotating cylinder (12) is installed at the center of the top. The rotating cylinder (12) rotates clockwise when viewed from above. Multiple tofu pudding forming buckets (13) are installed on the outer circumference of the rotating cylinder (12) and rotate with the rotating cylinder (12). The fixed frame (14) is located above the rotating cylinder (12) and its center is supported and fixed to the rotating base (11). The fixed frame (14) is equipped with a slurrying mechanism (15) and a coagulation mechanism (16). A lifting stirring device (17) is provided above the bean curd forming barrel (13) at the initial position. The lifting stirring device (17) is installed on the fixed frame (14). A lifting crushing device (18) is provided above the bean curd forming barrel (13) at the second to last position. The lifting crushing device (18) is installed on the fixed frame (14).

3. The large-scale artificial tofu production line according to claim 2, characterized in that, The rotating base (11) includes a drive motor (111), a fixed ring (112), a bearing (113), and an internal gear ring (114). The drive motor (111) is fixed to the rotating base (11), the fixed ring (112) is fixed to the center of the top surface of the rotating base (11), the bearing (113) is interference-fitted to the inner wall of the fixed ring (112), the internal gear ring (114) is interference-fitted to the inner wall of the bearing (113), the top of the internal gear ring (114) is fixed to the bottom of the rotating cylinder (12), and a gear is installed at the output end of the drive motor (111) to mesh with the internal gear ring (114).

4. The large-scale artificial tofu production line according to claim 2, characterized in that, The soy milk feeding mechanism (15) includes a soy milk bucket (151), a soy milk inlet pipe (152), a butterfly valve A (153), and a soy milk outlet pipe (154). The soy milk bucket (151) is fixed on a fixed frame (14), and the top is connected to the soy milk inlet pipe (152). The bottom outlet of the soy milk bucket (151) is equipped with a butterfly valve A (153), and the butterfly valve A (153) is connected to the soy milk outlet pipe (154). The end of the soy milk outlet pipe (154) is located above the tofu forming bucket (13) in the initial position.

5. The large-scale artificial tofu production line according to claim 2, characterized in that, The coagulation mechanism (16) includes a coagulant tank (161), an inlet pipe (162), a stirring motor A (163), a butterfly valve B (164), and an outlet pipe (165). The coagulant tank (161) is fixed on a fixed frame (14), and an inlet pipe (162) is connected to the top. A stirring motor A (163) is installed at the center of the top of the coagulant tank (161) to keep the coagulant inside the coagulant tank (161) in a flowing state. A butterfly valve B (164) is installed at the bottom outlet of the coagulant tank (161), and an outlet pipe (165) is connected to the butterfly valve B (164). The end of the outlet pipe (165) is located above the bean curd forming tank (13) in the initial position.

6. The large-scale artificial tofu production line according to claim 2, characterized in that, The lifting and stirring device (17) includes a heightening frame (171), a lifting cylinder A (172), a stirring lifting plate (173), a stirring motor B (174), and a stirring shaft (175). The heightening frame (171) is vertically fixed on the fixed frame (14). A vertical lifting cylinder A (172) is fixedly installed on the top of the heightening frame (171). A horizontal stirring lifting plate (173) is fixed at the bottom output end of the lifting cylinder A (172). A stirring motor B (174) is installed on the stirring lifting plate (173). A stirring shaft (175) is coaxially connected to the bottom output end of the stirring motor B (174). The stirring shaft (175) is located above the tofu forming bucket (13) in the initial position.

7. The large-scale artificial tofu production line according to claim 2, characterized in that, The lifting and crushing device (18) includes a lifting cylinder B (181) and a grid plate (182). The lifting cylinder B (181) is vertically fixed on the fixed frame (14). A horizontal grid plate (182) is fixed at the bottom output end of the lifting cylinder B (181). The grid plate (182) is located above the tofu forming bucket (13) in the second to last position.

8. The large-scale artificial tofu production line according to claim 2, characterized in that, The brain-raising device (2) includes a brain-raising frame (21), a slide rail (22), a rack (23), a brain-raising moving mechanism (24), and a brain-raising mechanism (25). The brain-raising frame (21) is an L-shaped structure. The top horizontal end is fixedly connected to the fixed frame (14), and the bean curd forming bucket (13) at the end position is below this connection. The vertical end of the brain-raising frame (21) is supported by the ground. The control box (6) is bolted to the vertical part of the brain-raising frame (21). Two slide rails (22) in the same direction are fixed on the inner side of the top horizontal part of the brain-raising frame (21), and a rack (23) in the same direction is fixed on the top. The brain-raising moving mechanism (24) is installed on the slide rail (22), and the brain-raising mechanism (25) is installed below the brain-raising moving mechanism (24). The brain-moving mechanism (24) includes a horizontal moving plate (241), a slider (242), a horizontal moving motor (243), a horizontal transmission gear (244), a lifting cylinder C (245), and a guide rod (246). The sliders (242) are fixed on both sides of the bottom of the horizontal moving plate (241). The sliders (242) are slidably connected along the slide rail (22). The horizontal moving plate (241) is fixed with a horizontal moving motor (243) at the top. The horizontal moving motor (243) is fixed with a horizontal transmission gear (244) at the output end. The horizontal transmission gear (244) meshes with a rack (23). The vertical lifting cylinder C (245) is fixed at the center of the top surface of the horizontal moving plate (241). The bottom output end of the lifting cylinder C (245) and the bottom of the guide rod (246) are both fixed to the top of the brain-digging mechanism (25). The guide rod (246) is slidably connected to the guide cylinder installed on the horizontal moving plate (241). The brain-digging mechanism (25) includes a lifting plate (251), a U-shaped plate (252), a connecting frame (253), a brain-digging scoop (254), a rotating shaft (255), a brain-digging motor (256), a drive sprocket (257), a driven sprocket (258), and a transmission sprocket (259). The lifting plate (251) is fixed to the bottom of the guide rod (246). A U-shaped plate (252) is fixed in the middle of the lifting plate (251). The U-shaped plate (252) is fixed to the bottom output end of the lifting cylinder C (245). Vertical connecting frames (253) are fixed to the bottom of both sides of the lifting plate (251). Bearing seats are fixed to the bottom of the two connecting frames (253). The brain-digging scoop (254) is... 4) A rotating shaft (255) is fixed at the top. Both ends of the rotating shaft (255) are installed with the bearing seats at the bottom of the connecting frame (253). A brain-digging motor (256) is fixed at the top of the lifting plate (251). A drive sprocket (257) is fixedly installed at the output end of the brain-digging motor (256). A driven sprocket (258) is fixedly installed at both ends of the rotating shaft (255). Two transmission sprockets (259) are coaxially connected to the top of the lifting plate (251) through the bearing seats. One side of the brain-digging scoop (254) is driven by a chain of drive sprocket (257), driven sprocket (258) and transmission sprocket (259), and the other side is driven by a chain of driven sprocket (258) and transmission sprocket (259). An infrared distance sensor (26) is fixedly installed on one side of the connecting frame (253).

9. The large-scale artificial tofu production line according to claim 8, characterized in that, The intermittent transmission device A (3) includes a transmission bracket (31), support bars (32), a transmission cylinder (33), a connecting plate (34), a transmission plate (35), a basket pusher (36), a central shaft (37), a limiting shaft (38), and a support roller (39). The initial conveying end of the transmission bracket (31) is located below the moving path of the tofu scoop (254). Multiple U-shaped support bars (32) are fixed on the top surface of the transmission bracket (31) to support the tofu basket (4). A transmission cylinder (33) is fixed on the top surface of the transmission bracket (31). A connecting plate (34) is vertically fixed at the output end of the transmission cylinder (33). Both ends of the connecting plate (34) are vertically fixed with... The transmission plate (35) is in the same direction as the support bar (32) and is lower than the support bar (32). A push bar (36) is installed on the side of the transmission plate (35) to push the tofu basket (4) to move on the support bar (32). The middle part of the push bar (36) is installed on the side of the transmission plate (35) through the central shaft (37) so that the push bar (36) can rotate. The push bar (36) is light at the top and heavy at the bottom, and maintains a vertical state by its own weight. A limit shaft (38) is fixed next to the push bar (36) on the side of the transmission plate (35). The lower part of the push bar (36) is obstructed by the limit shaft (38) and can only rotate in the direction of the movement of the tofu basket (4).

10. The large-scale artificial tofu production line according to claim 9, characterized in that, The pressing device (5) includes an intermittent transmission device B (51), a gantry frame (52), a basket-pulling cylinder (53), a pulling plate (54), a lifting cylinder D (55), and a pressure plate (56). The intermittent transmission device B (51) has the same structure as the intermittent transmission device A (3). The initial end of the intermittent transmission device B (51) is perpendicular to the end end of the intermittent transmission device A (3). Multiple gantry frames (52) are welded to the top of the intermittent transmission device B (51). A horizontal basket-pulling cylinder (53) is fixed on the first gantry frame (52). A pulling plate (54) is fixed to the output end of the basket-pulling cylinder (53) to pull the tofu basket (4) on the support bar (32) onto the intermittent transmission device B (51). A vertical lifting cylinder D (55) is fixed to the subsequent gantry frames (52). A horizontal pressure plate (56) is fixed to the bottom output end of the lifting cylinder D (55). The pressure plate (56) is used to press down the wrapped tofu to form tofu.

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