Automatic tofu production line

Abstract

The present invention discloses an automatic tofu production line, including an automatic slurry solidification device, a bean curd distributing device, a first bean curd conveying line, a capping manipulator, a second bean curd conveying line, a pressing device, an automatic plate turning device and a mold box turning and returning device, which are arranged in sequence along the production line; a number of tofu mold boxes are placed at equal intervals on the first bean curd conveying line, and the bean curd distributing device is used to evenly distribute the bean curd to each tofu mold box; a capping manipulator is arranged to be connected to the automatic plate turning device, and a capping conveying line is arranged between the capping manipulator and the capping manipulator. In the tofu production line disclosed by the present invention, mold boxes and capping are automatically placed and returned, and are recycled, which reduces the labor intensity of workers; the present invention adopts a multi-layer stepping pressing mechanism, which can press multiple layers of tofu mold boxes at the same time, improves processing efficiency, and reduces the length of the production line.

Description

Technical Field

[0001] The invention belongs to the technical field of tofu production and processing equipment, and in particular relates to an automatic tofu production line. Background Art

[0002] The traditional tofu production process includes processes such as slurrying and pressing. The process usually used for tofu pressing is to lay a cloth in a mold box with a water filter hole, add tofu curd with a high moisture content into the cloth, fold the cloth to wrap it, and then apply pressure on the mold box cover to dehydrate it to complete the pressing of the tofu. In the above process, the placement of the mold box, laying the cloth in the mold box, folding the cloth, and taking and placing the mold box cover are all done manually, and the mold box and the cover are usually made of stainless steel and are heavy. Therefore, the above process requires a lot of labor and the labor intensity of the workers is also very high. At the same time, the entire processing process is inefficient and cannot meet the needs of industrial production.

[0003] In order to solve the above problems existing in the traditional production process, we propose a tofu production line with automatic cap placement, automatic return of the mold box and a high degree of automation. Summary of the invention

[0004] The invention provides an automatic tofu production line with high processing efficiency, which can automatically place the pressing cap, automatically return the molding box and solve the technical problems existing in the known technology.

[0005] The technical solution adopted by the present invention to solve the technical problems existing in the known technology is: an automatic tofu production line includes an automatic slurry solidification device, a bean curd distributing device, a first bean curd conveying line, a cover placing robot, a second bean curd conveying line, a pressing device, an automatic plate turning device and a mold box turning and returning device which are sequentially connected along the production line; a number of tofu mold boxes are placed at equal intervals on the first bean curd conveying line, and the bean curd distributing device is used to evenly distribute the bean curd to each tofu mold box; the first bean curd conveying line is connected end to end with the mold box turning and returning device; a cover removing robot is connected to the automatic plate turning device, and a cover returning conveying line is arranged between the cover removing robot and the cover placing robot; the automatic plate turning device includes a plate turning machine frame, and a first pushing dial is sequentially arranged on the plate turning machine frame along the transmission direction of the tofu mold box The invention relates to a tofu mold box comprising: a piece, a flip frame and a second pushing paddle, the first pushing paddle is driven by the first pushing cylinder, the second pushing paddle is driven by the second pushing cylinder, a group of clamping cylinders are relatively arranged at the top and bottom of the flip frame, a first rotating shaft is horizontally arranged on the flip frame, and the first rotating shaft is driven to rotate by the first rotating motor; the mold box flipping and returning device comprises a flipping and returning machine frame, a second rotating shaft is horizontally arranged at one end of the flipping and returning machine frame adjacent to the automatic flipping device, the second rotating shaft is driven to rotate by the second rotating motor, a group of box clamping arms are relatively arranged at both ends of the second rotating shaft, and clamping cylinders are arranged at the ends of the box clamping arms; a third pushing paddle is arranged to connect with the box clamping arm, the third pushing paddle is driven by the third pushing cylinder, and the third pushing paddle is used to push the flipped tofu mold box to the first tofu brain conveyor line.

[0006] Preferably: the pressing device comprises a stacking mechanism, a multi-layer stepping pressing mechanism and a stacking mechanism.

[0007] Preferably: the stacking mechanism includes a stacking station, a first lifting frame is arranged above the stacking station, a lifting cylinder is arranged above the first lifting frame, the piston rod of the lifting cylinder is connected to the first lifting frame, and a group of mold box grippers are symmetrically arranged at the lower end of the first lifting frame, and the mold box grippers are one-way spring structures that can rotate upward.

[0008] Preferably: the de-coding mechanism comprises a de-coding station, a second lifting frame is arranged above the de-coding station, a first-level lifting cylinder and a second-level lifting cylinder are connected from top to bottom above the second lifting frame, the piston rod of the second-level lifting cylinder is connected to the second lifting frame, and a group of gripper assemblies are symmetrically arranged at the lower end of the second lifting frame; a conveying chain is arranged on the de-coding station, and the conveying chain is driven by a conveying motor.

[0009] Preferably: the multi-layer step-by-step pressing mechanism comprises a step-by-step conveyor, and a plurality of downward pressing cylinders are arranged at equal intervals above the step-by-step conveyor.

[0010] Preferably: the automatic soymilk dosing and solidification device includes a soymilk dosing barrel conveyor line, on which a plurality of soymilk dosing barrels are placed at equal intervals, and the soymilk dosing barrel conveyor line is also provided with a pouring mechanism that can drive the soymilk dosing barrels to flip and dump; it also includes multiple sets of soymilk quantitative mechanisms, multiple sets of soymilk dosing stirring mechanisms and multiple sets of soymilk beating stirring mechanisms, the soymilk quantitative mechanisms supply soymilk to the soymilk dosing barrels, and the soymilk dosing stirring mechanisms and the patterning stirring mechanisms are located above the soymilk dosing barrel conveyor line.

[0011] Preferably: the soymilk quantitative mechanism comprises a quantitative barrel, a slurry inlet valve and a slurry discharge valve are respectively arranged on the barrel wall of the quantitative barrel, and a float liquid level switch is arranged in the quantitative barrel; it also includes an overflow barrel connected to the quantitative barrel, and an overflow slurry discharge valve is arranged between the overflow barrel and the quantitative barrel.

[0012] Preferably: the slurry-doping stirring mechanism includes a stirring shaft, a stirring lifting cylinder is provided at the upper end of the stirring shaft, a stirring blade is provided at the lower end of the stirring shaft, and the stirring shaft is driven to rotate by a stirring motor; a coagulant supply mechanism is provided in coordination with the slurry-doping stirring mechanism, the coagulant supply mechanism includes a coagulant delivery pipe, a coagulant circulation inlet and a coagulant circulation outlet are respectively provided at the upper end of the coagulant delivery pipe, and an automatic switching valve and a flow regulating valve are also provided on the coagulant delivery pipe.

[0013] Preferably: the beating and stirring mechanism comprises a beating shaft, the upper end of the beating shaft is provided with a beating lifting cylinder, the lower end of the beating shaft is provided with a beating blade, and the beating shaft is driven to rotate by a beating motor.

[0014] The advantages and positive effects of the present invention are as follows: in the tofu production line disclosed by the present invention, the mold boxes and the pressing covers are automatically placed and automatically returned for recycling, thereby minimizing the labor workload and reducing the labor intensity of the workers; the present invention adopts a multi-layer step-by-step pressing mechanism, which can press multiple layers of tofu mold boxes at the same time, thereby improving the processing efficiency, while reducing the length of the production line and the floor space occupied by the entire set of processing equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a preferred embodiment of the present invention;

[0016] Figure 2 is a side view of an automatic panel turning device in a preferred embodiment of the present invention;

[0017] Figure 3 is a rear view of an automatic flap device in a preferred embodiment of the present invention;

[0018] Figure 4 It is a side view of a medium-sized box turning and returning device in a preferred embodiment of the present invention;

[0019] Figure 51 is a top view of a medium-sized box turning and returning device in a preferred embodiment of the present invention;

[0020] Figure 6 is a schematic structural diagram of a pressing device in a preferred embodiment of the present invention;

[0021] Figure 7 yes Figure 6 The structural diagram of the middle stacking mechanism;

[0022] Figure 8 yes Figure 6 The structural diagram of the middle de-coding mechanism;

[0023] Fig. 9 It is a schematic structural diagram of an automatic slurry solidification device in a preferred embodiment of the present invention;

[0024] Fig.10 yes Fig. 9 The front view of the soy milk quantitative mechanism;

[0025] Fig.11 yes Fig. 9 Side view of the soy milk dosing mechanism;

[0026] Fig.12 yes Fig. 9 A schematic diagram of the structure of the midpoint slurry stirring mechanism;

[0027] Fig.13 yes Fig. 9 A schematic diagram of the structure of the coagulant supply mechanism;

[0028] Fig.14 yes Fig. 9 Schematic diagram of the structure of the stirring mechanism.

[0029] In the figure: 1. Automatic slurry solidification device; 11. Slurry barrel; 12. Slurry barrel conveying line; 13. Slurry stirring mechanism; 131. Stirring lifting cylinder; 132. Stirring motor; 133. Stirring shaft; 134. Stirring blade; 135. Coagulant circulation inlet; 136. Coagulant circulation outlet; 137. Automatic switch valve; 138. Coagulant conveying pipe; 139. Flow regulating valve; 14. Soymilk quantitative mechanism; 141. Quantitative barrel; 142, float liquid level switch; 143, overflow barrel; 144, overflow discharge valve; 145, inlet valve; 146, discharge valve; 15, beating and stirring mechanism; 151, beating lifting cylinder; 152, beating motor; 153, beating shaft; 154, beating blade; 2, bean curd dispensing device; 3, first bean curd conveyor line; 4, cover placing robot; 5, second bean curd conveyor line; 6, pressing device; 61, stacking mechanism; 611, Stacking station; 612, box gripper; 613, first lifting frame; 614, lifting cylinder; 62, unstacking mechanism; 621, conveying motor; 622, unstacking station; 623, conveying chain; 624, gripper assembly; 625, second lifting frame; 626, second lifting cylinder; 627, first lifting cylinder; 63, multi-layer stepping pressing mechanism; 631, stepping conveying; 632, pressing cylinder; 7, automatic plate turning device; 71. First push paddle; 72. First push cylinder; 73. Turning frame; 74. Upper and lower clamping cylinders; 75. Second push paddle; 76. Second push cylinder; 77. First rotating motor; 8. Mould box turning and returning device; 81. Mould box clamping arm; 82. Third push paddle; 83. Third push cylinder; 84. Clamping cylinder; 85. Second rotating shaft; 86. Second rotating motor; 9. Cap removing robot; 10. Cap returning conveyor line. DETAILED DESCRIPTION

[0030] In order to further understand the content, features and effects of the present invention, the following embodiments are given to explain in detail as follows:

[0031] See also Figure 1 The present invention includes an automatic slurry solidification device 1, a soybean distributing device 2, a first soybean conveying line 3, a cover placing robot 4, a second soybean conveying line 5, a pressing device 6, an automatic plate turning device 7 and a mold box turning and returning device 8 which are sequentially connected along the production line.

[0032] Several tofu-shaped boxes are placed at equal intervals on the first tofu-shaped boxes conveyor line 3, and the tofu-shaped boxes distribution device 2 is used to evenly distribute the tofu-shaped boxes to each tofu-shaped box; the first tofu-shaped boxes conveyor line 3 is connected end to end with the box flipping and returning device 8; a cover removing robot 9 is connected to the automatic flipping device 7, and a cover returning conveyor line 10 is provided between the cover removing robot 9 and the cover placing robot 4.

[0033] The working process of the present invention is as follows: first, the soy milk and the coagulant are mixed by the automatic slurry solidification device 1, and the soy milk is solidified into tofu pudding; then, the tofu pudding solidified by the slurry is evenly distributed to the mold box of the first tofu pudding conveyor line 3 by the tofu pudding distribution device 2, and the wrapping cloth is laid in the mold box in advance, and the wrapping cloth is manually folded after the tofu pudding is loaded; the mold box continues to be transported forward, and the cover placing robot 4 automatically places the pressure cover on the mold box; the mold box with the cover placed enters the second tofu pudding conveyor line 5 and continues to be transported forward, and after reaching the pressing device 6, the tofu pudding loaded into the mold box is squeezed, dehydrated and formed; the mold box after the pressing continues to be transported forward and reaches the cover removing robot Hand 9, the cover taking robot 9 takes off the pressure cover and places it on the cover returning conveyor line 10, the cover returning conveyor line 10 conveys the pressure cover back to the cover placing robot 4, so as to realize the recycling of the pressure cover; after taking off the pressure cover, the wrapping cloth is opened manually, and a nylon board is placed on the tofu, the mold box is transmitted to the automatic flipping device 7 and turned 180°, and the tofu is turned on the nylon board. At this time, the mold box flipping and returning device 8 is actuated to take away the mold box, and turn the mold box 180° again and then return it to the first tofu brain conveyor line 3 for recycling; the tofu turned on the nylon board can continue to be connected to the cutting machine or the cartoning machine for subsequent processing.

[0034] The slurry solidification process can be configured with different numbers of slurry barrels according to the customer's process requirements and production capacity, and can also be configured with a traditional large barrel slurry solidification machine according to customer needs. The soy bean dispensing device 2 is a prior art, and the existing soy bean dispenser on the market can be used.

[0035] In the tofu production line of the present invention, the molding boxes and the pressing covers are automatically placed and automatically returned for recycling, thereby reducing the labor usage and the labor intensity of the workers to the greatest extent.

[0036] See also Figure 2 and Figure 3 In this embodiment, the automatic flipping device 7 includes a flipping machine frame, on which a first pushing paddle 71, a flipping frame 73 and a second pushing paddle 75 are sequentially arranged along the transmission direction of the tofu-shaped box. The first pushing paddle 71 is driven by a first pushing cylinder 72, and the second pushing paddle 75 is driven by a second pushing cylinder 76. A group of upper and lower clamping cylinders 74 are relatively arranged at the top and bottom of the flipping frame 73. A first rotating shaft is horizontally arranged on the flipping frame 73, and the first rotating shaft is driven to rotate by a first rotating motor 77.

[0037] The working principle of the automatic flipping device 7 is as follows: the first pushing cylinder 72 drives the first pushing paddle 71 to push the mold box into the flip frame 73, and then the upper and lower clamping cylinders 74 act to clamp the mold box in the flip frame 73 to prevent the mold box from falling during the flipping process. After clamping, the first rotating motor 77 drives the flip frame 73 to rotate, flips the mold box 180° and then stops. The first pushing cylinder 72 pushes the mold box in the flip frame 73 out, and the second pushing cylinder 76 continues to push it forward to the next workstation.

[0038] See also Figure 4 and Figure 5 In this embodiment, the mold box flipping and returning device 8 includes a flipping and returning machine frame, and a second rotating shaft 85 is horizontally arranged at one end of the flipping and returning machine frame adjacent to the automatic flipping device 7. The second rotating shaft 85 is driven to rotate by a second rotating motor 86. A group of box clamping arms 81 are relatively arranged at both ends of the second rotating shaft 85, and a clamping cylinder 84 is arranged at the end of the box clamping arm 81; a third pushing paddle 82 is arranged in connection with the box clamping arm 81, and the third pushing paddle 82 is driven by a third pushing cylinder 83. The third pushing paddle 82 is used to push the flipped tofu mold box to the first tofu brain conveyor line 3.

[0039] The working principle of the mold box flipping and returning device 8 is as follows: after the mold box turned upside down after the flip plate is pushed to the box flipping station through the rear flip plate conveyor, the box clamping arm 81 is driven by the second rotating motor 86 from a vertically upward waiting state to the mold box position along the second rotating axis 85, and then the clamping cylinder 84 is actuated to clamp the mold box. After clamping, the second rotating motor 86 is actuated to flip the mold box 180°, and then the clamping cylinder 84 is opened to place the mold box on the rear flipping conveyor, and then it is transported forward by the third pushing cylinder 83 and transported back to the first bean curd conveyor line 3 for recycling, and the box clamping arm 81 returns to the vertically upward state to wait for the arrival of the next mold box.

[0040] See also Figure 6 In this embodiment, the pressing device 6 includes a stacking mechanism 61, a multi-layer stepping pressing mechanism 63 and a de-stacking mechanism 62.

[0041] See also Figure 7 The stacking mechanism 61 includes a stacking station 611, a first lifting frame 613 is arranged above the stacking station 611, a lifting cylinder 614 is arranged above the first lifting frame 613, the piston rod of the lifting cylinder 614 is connected to the first lifting frame 613, and a group of mold box grippers 612 are symmetrically arranged at the lower end of the first lifting frame 613, and the mold box grippers 612 are a one-way spring structure that can rotate upward.

[0042] The working principle of the stacking mechanism 61 is as follows: when the mold box is pushed to the stacking station 611, the lifting cylinder 614 drives the first lifting frame 613 to descend, and the mold box gripper 612 is a one-way spring type. After touching the edge of the mold box during the descent, it can rotate upward by a certain angle so as to continue to descend, and automatically reset after leaving the edge. After it falls into place, the lifting cylinder 614 rises. At this time, the mold box gripper 612 drags the edge of the mold box to drive the mold box to rise. After it rises into place, the next mold box continues to be pushed to the stacking station 611, and the lifting cylinder 614 descends again to complete the stacking work in sequence.

[0043] See also Figure 8 The de-coding mechanism 62 includes a de-coding station 622, and a second lifting frame 625 is arranged above the de-coding station 622. A first-level lifting cylinder 627 and a second-level lifting cylinder 626 are connected from top to bottom above the second lifting frame 625. The piston rod of the second-level lifting cylinder 626 is connected to the second lifting frame 625, and a group of gripper assemblies 624 are symmetrically arranged at the lower end of the second lifting frame 625; a conveying chain 623 is arranged on the de-coding station 622, and the conveying chain 623 is driven by a conveying motor 621.

[0044] The working principle of the de-coding mechanism 62 is as follows: when the pressed stacked mold boxes are conveyed to the de-coding station 622, the first-level lifting cylinder 627 is actuated to lower the second lifting frame 625 to the height of the second-layer mold box, and then the gripper assembly 624 is clamped. After grasping the second-layer mold box, the first-level lifting cylinder 627 is raised to lift the second-layer and above mold boxes to a certain height, and then the conveying chain 623 is actuated to convey the lowest layer of mold boxes out of the de-coding position. At this time, the de-coding of one layer of mold boxes is completed. After conveying out of the de-coding mechanism, the conveying chain 623 stops rotating. At this time, the first-level lifting cylinder 627 and the second-level lifting cylinder 626 simultaneously descend to place the grasped mold box on the conveying chain at the lowest position, the gripper assembly 624 is opened, and the second-level lifting cylinder 626 rises. After it is in place, the gripper assembly 624 clamps and grasps the two-layer mold box, and the first-level lifting cylinder 627 rises and circulates in sequence until the de-coding is completed.

[0045] The multi-layer step-by-step pressing mechanism 63 includes a step-by-step conveyor 631 , and a plurality of downward pressing cylinders 632 are arranged at equal intervals above the step-by-step conveyor 631 .

[0046] This embodiment adopts multi-layer step pressing, and multiple mold boxes are stacked by the stacking mechanism 61, and then the stacked multi-layer mold boxes are pressed simultaneously by the multi-layer step pressing mechanism 63, which has higher pressing efficiency and higher production capacity. After pressing and forming, the mold box is split into single layers by the destacking mechanism 62 and transported to the subsequent process.

[0047] According to the customer's process requirements and production capacity needs, the pressing station area can also use a traditional single-layer crawler continuous press.

[0048] See also Fig. 9 In this embodiment, the automatic soymilk dosing and solidification device 1 includes a soymilk dosing barrel conveyor line 12, on which a plurality of soymilk dosing barrels 11 are placed at equal intervals, and the soymilk dosing barrel conveyor line 12 is also provided with a pouring mechanism that can drive the soymilk dosing barrels 11 to flip and dump; it also includes multiple sets of soymilk quantitative mechanisms 14, multiple sets of soymilk dosing stirring mechanisms 13 and multiple sets of soymilk beating stirring mechanisms 15, the soymilk quantitative mechanisms 14 supply soymilk to the soymilk dosing barrels 11, and the soymilk dosing stirring mechanisms 13 and the soymilk beating stirring mechanisms 15 are located above the soymilk dosing barrel conveyor line 12.

[0049] See also Fig.10 and Fig.11 The soymilk quantitative mechanism 14 includes a quantitative barrel 141, on the barrel wall of which a slurry inlet valve 145 and a slurry discharge valve 146 are respectively arranged, and a float liquid level switch 142 is arranged in the quantitative barrel 141; it also includes an overflow barrel 143 connected to the quantitative barrel 141, and an overflow slurry discharge valve 144 is arranged between the overflow barrel 143 and the quantitative barrel 141.

[0050] See also Fig.12 and Fig.13 The slurry-doping stirring mechanism 13 includes a stirring shaft 133, a stirring lifting cylinder 131 is provided at the upper end of the stirring shaft 133, a stirring blade 134 is provided at the lower end of the stirring shaft 133, and the stirring shaft 133 is driven to rotate by a stirring motor 132; a coagulant supply mechanism is provided in coordination with the slurry-doping stirring mechanism 13, and the coagulant supply mechanism includes a coagulant delivery pipe 138, a coagulant circulation inlet 135 and a coagulant circulation outlet 136 are respectively provided at the upper end of the coagulant delivery pipe 138, and an automatic switch valve 137 and a flow regulating valve 139 are also provided on the coagulant delivery pipe 138.

[0051] See also Fig.14 In this embodiment, the beating and stirring mechanism 15 includes a beating shaft 153, a beating lifting cylinder 151 is provided at the upper end of the beating shaft 153, a beating blade 154 is provided at the lower end of the beating shaft 153, and the beating shaft 153 is driven to rotate by a beating motor 152.

[0052] The working principle of the automatic slurry solidification device 1 is:

[0053] First, the soy milk enters the quantitative barrel 141 through the inlet valve 145. When the set liquid level is reached, the float liquid level switch 142 outputs a signal to close the inlet valve 145. If there is an impact in the pipeline that exceeds the set liquid level, the soy milk is discharged into the overflow barrel 143 through the overflow pipe. After the slurry barrel reaches the discharge position, the discharge valve 146 opens to discharge the soy milk quantitatively into the slurry barrel. After the quantitative barrel 141 is emptied, the overflow discharge valve 144 opens to discharge the excess soy milk into the quantitative barrel 141, and then the inlet valve 145 is opened to work in a cycle.

[0054] Then, after the slurry barrel is transferred to the bottom of the slurry stirring mechanism 13, the stirring lifting cylinder 131 descends, the stirring blade 134 rotates, and the coagulant is quantitatively added through the coagulant supply mechanism to make it fully combined with the soybean milk. (This stirring method is a magnesium chloride or gypsum slurry mechanism, and high-speed stirring can also be used for oily magnesium chloride).

[0055] Next, the slurry-doping barrel is moved to the bottom of the beating and stirring mechanism 15, and the beating lifting cylinder 151 descends, and the beating blades 154 rotate to break and dehydrate the solidified bean curd. This step can be used or not according to the process requirements.

[0056] Although the best 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 these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic tofu production line, characterized by: The invention comprises an automatic slurry solidification device (1), a bean curd distributing device (2), a first bean curd conveying line (3), a capping robot (4), a second bean curd conveying line (5), a pressing device (6), an automatic plate turning device (7) and a mold box turning and returning device (8) which are arranged in sequence along the production line; A plurality of tofu-shaped boxes are placed at equal intervals on the first tofu-shaped box conveyor line (3), and the tofu-shaped box distribution device (2) is used to evenly distribute the tofu-shaped boxes; the first tofu-shaped box conveyor line (3) is connected end to end with the box turning and returning device (8); a cover removal robot (9) is connected to the automatic plate turning device (7), and a cover return conveyor line (10) is provided between the cover removal robot (9) and the cover placement robot (4); The automatic panel turning device (7) comprises a panel turning machine frame, on which a first pushing paddle (71), a turning frame (73) and a second pushing paddle (75) are arranged in sequence along the conveying direction of the tofu-shaped box, the first pushing paddle (71) is driven by a first pushing cylinder (72), the second pushing paddle (75) is driven by a second pushing cylinder (76), a group of upper and lower clamping cylinders (74) are arranged oppositely at the top and bottom of the turning frame (73), a first rotating shaft is horizontally arranged on the turning frame (73), and the first rotating shaft is driven to rotate by a first rotating motor (77); The mold box turning and returning device (8) comprises a turning and returning machine frame, a second rotating shaft (85) is horizontally arranged at one end of the turning and returning machine frame adjacent to the automatic plate turning device (7), the second rotating shaft (85) is driven to rotate by a second rotating motor (86), a group of box clamping arms (81) are arranged opposite to each other at both ends of the second rotating shaft (85), and a clamping cylinder (84) is arranged at the end of the box clamping arm (81); a third pushing paddle (82) is arranged to dock with the box clamping arm (81), the third pushing paddle (82) is driven by a third pushing cylinder (83), and the third pushing paddle (82) is used to push the turned tofu mold box to the first tofu brain conveyor line (3); The pressing device (6) comprises a stacking mechanism (61), a multi-layer stepping pressing mechanism (63) and a stacking mechanism (62); The stacking mechanism (61) comprises a stacking station (611), a first lifting frame (613) is arranged above the stacking station (611), a lifting cylinder (614) is arranged above the first lifting frame (613), a piston rod of the lifting cylinder (614) is connected to the first lifting frame (613), and a group of mold box grippers (612) are symmetrically arranged at the lower end of the first lifting frame (613), and the mold box grippers (612) are one-way spring structures that can rotate upwards; The de-coding mechanism (62) comprises a de-coding station (622), a second lifting frame (625) is arranged above the de-coding station (622), a first-stage lifting cylinder (627) and a second-stage lifting cylinder (626) are connected from top to bottom above the second lifting frame (625), a piston rod of the second-stage lifting cylinder (626) is connected to the second lifting frame (625), and a group of gripper assemblies (624) are symmetrically arranged at the lower end of the second lifting frame (625); a conveying chain (623) is arranged on the de-coding station (622), and the conveying chain (623) is driven by a conveying motor (621); The automatic soymilk dosing and solidification device (1) comprises a soymilk dosing barrel conveyor line (12), on which a plurality of soymilk dosing barrels (11) are placed at equal intervals, and the soymilk dosing barrel conveyor line (12) is also provided with a material pouring mechanism capable of driving the soymilk dosing barrels (11) to flip and dump; and further comprises a plurality of soymilk dosing mechanisms (14), a plurality of soymilk dosing stirring mechanisms (13) and a plurality of soymilk beating stirring mechanisms (15), wherein the soymilk dosing mechanisms (14) supply soymilk to the soymilk dosing barrels (11), and the soymilk dosing stirring mechanisms (13) and the beating stirring mechanisms (15) are located above the soymilk dosing barrel conveyor line (12).

2. The automatic tofu production line according to claim 1, characterized in that: The multi-layer step-by-step pressing mechanism (63) comprises a step-by-step conveyor (631), and a plurality of downward pressing cylinders (632) are arranged at equal intervals above the step-by-step conveyor (631).

3. The automatic tofu production line according to claim 1, characterized in that: The soymilk quantitative mechanism (14) comprises a quantitative barrel (141), a slurry inlet valve (145) and a slurry discharge valve (146) are respectively arranged on the barrel wall of the quantitative barrel (141), and a float liquid level switch (142) is arranged in the quantitative barrel (141); and also comprises an overflow barrel (143) connected to the quantitative barrel (141), and an overflow slurry discharge valve (144) is arranged between the overflow barrel (143) and the quantitative barrel (141).

4. The automatic tofu production line according to claim 3, characterized in that: The slurry stirring mechanism (13) comprises a stirring shaft (133), the upper end of which is provided with a stirring lifting cylinder (131), the lower end of which is provided with a stirring blade (134), and the stirring shaft (133) is driven to rotate by a stirring motor (132); a coagulant supply mechanism is provided in coordination with the slurry stirring mechanism (13), the coagulant supply mechanism comprises a coagulant delivery pipe (138), the upper end of which is provided with a coagulant circulation inlet (135) and a coagulant circulation outlet (136), and the coagulant delivery pipe (138) is also provided with an automatic switch valve (137) and a flow regulating valve (139).

5. The automatic tofu production line according to claim 4, characterized in that: The beating and stirring mechanism (15) comprises a beating shaft (153), the upper end of which is provided with a beating lifting cylinder (151), the lower end of which is provided with a beating blade (154), and the beating shaft (153) is driven to rotate by a beating motor (152).

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