A dynamic drainage tofu forming device

Abstract

The application provides a tofu forming device with dynamic water blocking and draining, comprising a support frame, an extraction mechanism, a double-layer box mechanism, a dynamic water blocking mechanism, a feeding mechanism, a loosening mechanism and an extrusion mechanism; the support frame bears the overall structure; the extraction mechanism is slidably arranged on the support frame; the double-layer box mechanism is arranged on the bottom support plate; the water blocking body is arranged in the space structure composed of the outer box and the mesh box, and is used for forming a waterproof barrier to prevent leakage in the soybean milk solidification stage, and the waterproof function is removed to allow water draining in the tofu forming stage; the feeding mechanism is movably arranged on the upper part of the support frame, and is used for conveying the brine soybean milk to the mesh box; the loosening mechanism is arranged above the mesh box, and is used for crushing the solidified tofu brain through horizontal reciprocating motion; and the extrusion mechanism is arranged on the top of the support frame, and is used for extruding the tofu to form, so as to solve the problem that the functions of preventing leakage and water permeation cannot be dynamically switched in the same container in the tofu making.

Description

Technical Field

[0001] This invention relates to the field of soybean product processing equipment technology, and in particular to a dynamic water-blocking tofu forming device. Background Technology

[0002] In the tofu-making process, soy milk needs to go through grinding, boiling, coagulation with coagulant, and extrusion molding in sequence. The traditional method requires three separate pieces of equipment: a heating container, a coagulation tank, and a molding box. This process requires manual transfer of the coagulated soy milk to the coagulation container, and then scooping the coagulated tofu into the molding box lined with a bean curd cloth for extrusion.

[0003] Existing technology adopts a step-by-step container operation mode. After the soy milk is boiled by heating the container, the soy milk is pumped to the coagulation tank to solidify into tofu pudding. The tofu pudding is then transferred to the forming box by manual labor or pump for squeezing and draining.

[0004] This model requires the use of three independent containers, resulting in large equipment space occupation, low process connection efficiency, and manual transfer is prone to damaging the tofu structure. It is also impossible to achieve dynamic switching between leak prevention and water seepage functions within the same device, which means that materials must be transferred multiple times. The operation is cumbersome and relies on manual intervention, which restricts the simplification of the production process and the improvement of automation. Utility Model Content

[0005] This application provides a dynamic water-blocking tofu forming device to solve the problem that it is impossible to dynamically switch between leak-proof and seepage prevention functions within the same container during tofu production.

[0006] This application provides a dynamic water-blocking tofu forming device, including a support frame, a extraction mechanism, a double-layer box mechanism, a dynamic water-blocking mechanism, a feeding mechanism, a loosening mechanism, and an extrusion mechanism. The extraction mechanism is slidably mounted on the support frame to achieve drawer-type displacement. This mechanism includes a positioning groove fixed to the bottom frame of the support frame, a parallel track group slidably connected in the positioning groove, a bottom support plate at the top of the parallel track group, and an extraction panel vertically fixed to the front end of the bottom support plate. An L-shaped support strip is fixedly connected to the side of the extraction panel near the bottom support plate. The double-layer box mechanism is disposed on the bearing surface of the bottom support plate and includes an outer box disposed on the upper surface of the support plate and having drainage holes on the bottom surface of the four frames, a mesh box nested inside the outer box and having corresponding drainage holes, and a support telescopic motor fixed to the L-shaped support strip and connected to the bottom of the mesh box. The motor drives the mesh box to rise and fall. The dynamic water-blocking mechanism includes a water-blocking body, which is set in the space formed by the outer box and the mesh box. It is used to form a waterproof barrier to prevent liquid leakage during the coagulation stage of soy milk and to release the waterproof function to allow water to seep out during the tofu forming stage.

[0007] The feeding mechanism is movable and positioned on the upper part of the support frame to deliver coagulated soy milk to the mesh box. The loosening mechanism is located above the mesh box and breaks the solidified tofu curd into uniform pieces through horizontal reciprocating motion. The extrusion mechanism is located at the top of the support frame and above the mesh box to extrude the tofu and complete the forming process.

[0008] The dynamic water-blocking tofu forming device provided in this application, through the coordinated operation of a support frame, extraction mechanism, double-layer box mechanism, dynamic water-blocking mechanism, feeding mechanism, loosening mechanism, and extrusion mechanism, can achieve dynamic switching between waterproof sealing during the soy milk coagulation stage and water seepage drainage during the tofu forming stage within the same container. This reduces the number of material transfers in traditional processes and lowers the intensity of manual intervention. At the same time, through the controllable release mechanism of the water-blocking body, it improves the continuity and automation of the tofu production process, thereby increasing production efficiency and product consistency.

[0009] Optionally, the water-blocking body is made of food-grade plastic film, laid in the interlayer space between the outer box and the mesh box. The dynamic water-blocking mechanism includes an electric rotating shaft, which is fixed to the side of the support frame via a bracket. The core components of the electric rotating shaft include: a bracket integrally welded to the support frame; a rotating shaft rotatably mounted on the bracket via bearings, the shaft body having a long strip-shaped clamping structure with both open and closed working states; a first drive motor connected to the drive end of the rotating shaft via a coupling; and a rotary encoder located at the junction of the motor output shaft and the coupling. In the open state, the long strip-shaped clamping structure holds the end of the plastic wrap; in the closed state, it fixes the film. When the rotating shaft rotates, it rolls up the plastic wrap.

[0010] By setting a food-grade plastic film as a water barrier, and in conjunction with the winding function of the electric rotating shaft, the waterproof barrier can be quickly removed during the tofu forming stage; the long strip-shaped clamp design of the rotating shaft ensures the reliability of the end of the plastic film. This structure realizes the automatic switching between waterproof and drainage functions, reducing manual operation.

[0011] Optionally, the water-blocking body adopts a double-layer composite structure, comprising a food-grade plastic film disposed inside the mesh box, and a layer of fine cotton gauze adhered to the inside of the plastic film. The plastic film provides the core waterproof barrier, while the fine cotton gauze layer serves as the medium for direct contact between the tofu and the plastic film; this design ensures reliable leak prevention.

[0012] The dynamic water-blocking mechanism incorporates a movable spiked plate assembly, with its spiked plate base distributed across the four sides and bottom of the outer box. Puncture needles are arrayed on the surface of the spiked plate base. The fixed end of the drive mechanism is connected to a support frame, while the power end propels the spiked plate base. A guiding system is installed around the perimeter and bottom of the outer box, connecting to the spiked plate base and constraining its movement trajectory. When the drive mechanism is activated, the guiding system guides the spiked plate base along a predetermined path, causing the puncture needles to sequentially penetrate the water-blocking body, forming drainage micropores.

[0013] Optionally, the water-blocking material is a layer of fine cotton gauze coated with a soluble water-blocking coating, which is placed on the inner surface of the mesh box. The soluble water-blocking coating is made of plant-derived gum and automatically dissolves after maintaining its waterproof function for a predetermined time. The fine cotton gauze layer is configured as two layers, each coated with the coating to enhance waterproof reliability. This solution achieves automatic release of the water-blocking function through the timed dissolution characteristic of the coating, while the plant-based material ensures food contact safety.

[0014] Optionally, the feeding mechanism includes a dovetail-shaped sliding bar fixed to the support frame. The first connecting block forms a sliding pair with the sliding bar through a dovetail groove adapted to its inner wall, achieving lateral displacement constraint. The hollow feeding column is vertically fixed to the first connecting block, and its bottom has a dual-mode through hole with a circular water outlet and a long strip water outlet. The side inlet connects to the conveying pipe of the electronically controlled metering instrument and the normally closed electric valve. The first threaded rod is rotatably connected to the support frame, the second drive motor is fixed to the support frame, and the first transmission belt connects the output shaft of the second drive motor to the connecting shaft of the first threaded rod. The first threaded rod is threadedly connected to a snap-fit ​​sleeve, and the snap-fit ​​sleeve is rotatably connected to the outer wall of the hollow feeding column.

[0015] The second drive motor drives the first threaded rod to rotate via the first transmission belt, pushing the hollow feed column to move along the sliding strip dovetail guide rail, achieving precise positioning of the feeding station. Soy milk flows into the mesh box through the circular water outlet, while the elongated water outlet is mainly used to convey the already solidified paste-like tofu pudding.

[0016] Optionally, the loosening mechanism includes a second connecting block, a drive rod, a third drive motor, a metal mesh, a second threaded rod, a linkage block, a fourth drive motor, and a second transmission belt.

[0017] The second connecting block is slidably connected to the sliding bar, and the inner wall of the connecting block is rotatably connected to the drive rod. The third drive motor is fixedly mounted on the second connecting block, and its output shaft is fixedly connected to the drive rod. A metal mesh, woven from stainless steel chains, is installed on the drive rod. The second threaded rod is rotatably connected to the support frame, and a linkage block is threadedly connected to the second threaded rod and rotatably connected to the drive rod. The fourth drive motor is fixed to the support frame, and its output shaft is connected to the connecting shaft of the second threaded rod via a second transmission belt.

[0018] When the fourth drive motor starts, the second transmission belt drives the second threaded rod to rotate. The linkage block converts the rotational motion into the horizontal reciprocating movement of the drive rod, causing the metal mesh to move inside the tofu pudding. The mesh-like metal chain structure uniformly breaks up the solidified tofu pudding, promoting water extraction.

[0019] Optionally, the extrusion mechanism includes a top support block fixed to the top of the support frame. The first ends of two symmetrically arranged top support arms are hinged to the top support block, and a middle support block is rotatably connected to the second ends of the top support arms. The first end of a bottom support arm is hinged to the bottom of the middle support block, and the bottom support block is hinged to the second end of the bottom support arm. A rigid plate is fixedly connected to the bottom of the bottom support block. A bidirectional third threaded rod is threaded to the inner walls of the two middle support blocks. A fifth drive motor is fixed to the middle support block, and its output shaft is fixedly connected to the connecting shaft of the third threaded rod. The rigid plate is located directly above the mesh box.

[0020] The fifth drive motor rotates the bidirectional third threaded rod, which in turn pushes the two central support blocks to move towards each other via the threaded joint. The displacement of the central support blocks is converted into vertical downward pressure from the rigid plate through a four-bar linkage consisting of the top and bottom support arms. The bidirectional threaded design ensures uniform pressure distribution, and the perforated structure of the rigid plate simultaneously achieves pressure application and drainage. This structure provides controllable linear compressive force, avoiding the instability of traditional heavy-load compression.

[0021] The diameter of the seepage holes in the outer box is larger than that in the mesh box, and the central axes of all seepage holes are strictly coincident. When the water-blocking body covers the gap between the two boxes, the area where the axes of the seepage holes coincide is completely sealed by the water-blocking body, forming a waterproof barrier; after the function of the water-blocking body is released, the coaxial seepage holes form a through drainage channel.

[0022] Optionally, the double-layer box mechanism includes a second outer box fixed to the bottom of the support frame. The second outer box is a non-mesh sealed structure, and its bottom is equipped with a drain pipe with a drain valve and a drain pump. A mesh box is nested inside the second outer box, and the mesh box has drainage holes evenly distributed on its four walls and bottom surface.

[0023] The liquid soy milk, after coagulation, is injected into a mesh box via a feeding mechanism. The sealing structure of the second outer box prevents leakage, allowing it to solidify and form tofu pudding. A supporting telescopic motor pushes the mesh box upward, bringing it into contact with the upper extrusion mechanism to apply pressure. The tofu water produced by extrusion seeps through the mesh holes into the second outer box and is discharged via a drain pipe valve pump. This structure achieves a single-container leak-proof and drainage function through the dynamic switching between the sealing layer and the seepage layer.

[0024] As can be seen from the above technical solutions, this application provides a dynamic water-blocking tofu forming device. Through the coordinated work of the support frame, extraction mechanism, double-layer box mechanism, dynamic water-blocking mechanism, feeding mechanism, loosening mechanism and extrusion mechanism, the device can dynamically switch between the leak-proof sealing function during the soy milk coagulation stage and the seepage and drainage function during the tofu forming stage within the same container. This solves the problems of large equipment space occupation and low process efficiency caused by multiple material transfers in traditional processes. Attached Figure Description

[0025] To more clearly illustrate the technical solution of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the overall structure of this application;

[0027] Figure 2 This is a structural schematic diagram of the front view of this application;

[0028] Figure 3 This is a partial structural schematic diagram of the rear view of this application;

[0029] Figure 4 This is a schematic diagram of the extraction mechanism in this application;

[0030] Figure 5 This is a schematic diagram of the double-layer box mechanism of this application;

[0031] Figure 6 This is a schematic diagram of the dynamic water-blocking mechanism of this application;

[0032] Figure 7 This is a schematic diagram of the structure of the electrically rotating shaft of this application;

[0033] Figure 8 This is a schematic diagram of the movable barbed plate assembly of this application;

[0034] Figure 9 This is a schematic diagram of the drive mechanism of this application;

[0035] Figure 10 This is a schematic diagram of the feeding mechanism in this application;

[0036] Figure 11 This is a schematic diagram of the feeding mechanism in this application;

[0037] Figure 12 This is a schematic diagram of the loosening mechanism in this application;

[0038] Figure 13 This is a schematic diagram of the extrusion mechanism of this application;

[0039] Figure 14 This is a schematic diagram of the double-layer box mechanism of this application;

[0040] Figure 15 This is a schematic diagram of the drain pipe of the double-layer box mechanism in this application;

[0041] Figure 16 This is a schematic diagram of the structure of the second drive motor in this application;

[0042] Figure 17 This is a schematic diagram of the structure of the fourth drive motor in this application.

[0043] In the diagram: 1. Support frame; 2. Extraction mechanism; 21. Positioning groove; 22. Parallel track assembly; 23. Bottom support plate; 24. Extraction panel; 25. L-shaped support bar; 3. Double-layer box mechanism; 31. Outer box; 32. Mesh box; 33. Support telescopic motor; 34. Second outer box; 35. Drain pipe; 4. Dynamic water-blocking mechanism; 41. Water-blocking body; 42. Electric rotating shaft; 421. Support; 422. Rotating shaft; 423. First drive motor; 424. Coupling; 425. Rotary encoder; 43. Movable spike plate assembly; 431. Spike plate base; 432. Drive mechanism; 433. Guide system; 5. 51. Feeding mechanism; 52. Sliding bar; 53. First connecting block; 54. Hollow feeding column; 55. First threaded rod; 56. Second drive motor; 57. First transmission belt; 68. Snap-fit ​​sleeve; 69. Loosening mechanism; 60. Second connecting block; 61. Drive rod; 62. Third drive motor; 63. Metal mesh; 64. Second threaded rod; 65. Linkage block; 66. Fourth drive motor; 67. Second transmission belt; 78. Extrusion mechanism; 71. Top support block; 72. Top support arm; 73. Middle support block; 74. Bottom support arm; 75. Bottom support block; 76. Rigid plate; 77. Threaded rod three; 78. Fifth drive motor. Detailed Implementation

[0044] The embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described below do not represent all embodiments consistent with this application. They are merely examples of systems and methods consistent with some aspects of this application.

[0045] It should be noted that the brief descriptions of terms in this application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise stated, these terms should be understood in their ordinary and common meaning.

[0046] The terms "first," "second," "third," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar or related objects or entities, and do not necessarily imply a specific order or sequence, unless otherwise specified. It should be understood that such terms are interchangeable where appropriate.

[0047] The terms “comprising” and “having”, and any variations thereof, are intended to cover but not exclude inclusion, for example, a product or device that includes a range of components is not necessarily limited to all of the components that are clearly listed, but may include other components that are not clearly listed or that are inherent to such product or device.

[0048] Similar parts between the embodiments provided in this application can be referred to mutually. The specific implementation methods provided above are only a few examples under the overall concept of this application and do not constitute a limitation on the scope of protection of this application. For those skilled in the art, any other implementation methods extended from the solution of this application without creative effort shall fall within the scope of protection of this application.

[0049] This embodiment provides a tofu forming device with dynamic water-blocking mechanism. See [link to relevant documentation]. Figures 1-15 ,include:

[0050] The support frame 1 adopts a metal frame structure, providing a stable support foundation for the entire device. Its frame design ensures that each functional component can be accurately positioned and maintain operational stability. The upper area of ​​the support frame 1 is used to install the feeding mechanism 5 and the extrusion mechanism 7, the middle area is equipped with a double-layer box mechanism 3, and the bottom is equipped with an extraction mechanism 2.

[0051] The extraction mechanism 2 includes a positioning groove 21, a parallel rail assembly 22, a bottom support plate 23, an extraction panel 24, and an L-shaped support bar 25. The positioning groove 21 is fixed to the bottom frame of the support frame 1, forming a precise guide rail. The parallel rail assembly 22 slides along the positioning groove 21, driving the bottom support plate 23 to achieve smooth drawer-like displacement. The extraction panel 24 is fixed to the front end of the bottom support plate 23, facilitating the operator's application of force. The horizontal portion of the L-shaped support bar 25 is fixed to the bottom support plate 23, while the vertical portion extends upward for mounting other components.

[0052] The double-layer box mechanism 3 consists of an outer box 31, a mesh box 32, and a support telescopic motor 33. The top edge of the mesh box 34 has an outward-flared edge, the width of which matches the wall thickness of the outer box 31. The outer box 31 is fixed to the bottom support plate 23, and its perimeter and bottom are provided with evenly distributed drainage holes. The mesh box 32 is located inside the outer box 31 and employs a mesh structure design. The support telescopic motor 33 is mounted on an L-shaped support bar 25 and connected to the mesh box 32 via a transmission mechanism to achieve its lifting and lowering movement.

[0053] It should be noted that the support telescopic motor 33 can also be a pneumatic cylinder, an electro-hydraulic jack, an electric cylinder, or other different lifting and jacking power components.

[0054] The dynamic water-blocking mechanism 4 includes a water-blocking body 41, which is disposed within a spatial structure composed of an outer box 31 and a mesh box 32. The water-blocking body 41 is made of a flexible waterproof material and can cover or expose the seepage holes of the double-layer box mechanism 3 as needed.

[0055] When the water-blocking body 41 is removed, the support telescopic motor 33 drives the mesh box 32 to rise. The mesh box is kept at a high position under the lifting action of the support telescopic motor 33, and works with the top extrusion mechanism 7 to apply pressure to complete the extrusion process.

[0056] The feeding mechanism 5 includes a sliding bar 51, a first connecting block 52, and a hollow feeding column 53. The sliding bar 51 is fixed to the upper part of the support frame 1, and the first connecting block 52 moves along the sliding bar 51. The hollow feeding column 53 is connected to the first connecting block 52, enabling precise material conveying.

[0057] The loosening mechanism 6 consists of a second connecting block 61, a drive rod 62, and a metal mesh 64. The metal mesh 64 is mounted on the drive rod 62 and performs reciprocating motion to crush the material. The extrusion mechanism 7 includes components such as a top support block 71, a top support arm 72, and a rigid plate 76, forming an adjustable pressing mechanism.

[0058] Understandably, when the device is in operation, the extraction mechanism 2 is fully pushed into the support frame 1. The support telescopic motor 33 lifts the mesh box 32 to the working position, at which point the water-blocking body 41 unfolds to cover all the seepage holes of the double-layer box mechanism 3, forming a sealed state.

[0059] The hollow feed column 53 of the feeding mechanism 5 moves above the mesh box 32 and injects the processed soy milk into the double-layer box 3. The water-blocking body 41 ensures that the soy milk will not be lost through the seepage holes during the coagulation stage, thus maintaining the integrity of the material.

[0060] Once the soy milk is poured in, the device enters the coagulation stage. The metal mesh 64 of the loosening mechanism 6 begins to reciprocate, breaking the coagulated tofu into uniform pieces. This process ensures uniform material density during subsequent pressing.

[0061] Once the predetermined solidification degree is reached, the support telescopic motor 33 drives the mesh box 32 to slowly rise. At the same time, the water-blocking body 41 is gradually retracted, exposing the seepage holes of the double-layer box mechanism 3. The rigid plate 76 of the extrusion mechanism 7 presses down synchronously, applying uniform pressure to the material.

[0062] During the pressing process, the mesh box 32 continuously rises, and the moisture in the material is discharged through the gradually exposed drainage holes. After the entire drainage process is completed, the operator can remove the formed tofu by pulling out the bottom support plate 23 through the pull panel 24.

[0063] This embodiment achieves coordinated operation of various functional components through the integrated design of the support frame 1. The cooperation between the double-layer box mechanism 3 and the dynamic water-blocking mechanism 4 solves the problem of difficulty in simultaneously addressing leakage prevention and drainage in traditional processes. The dynamic water-blocking mechanism 4 adopts a water-blocking body 41, and the switching between leakage prevention and drainage states of the water-blocking body 41 solves the problem of the container having a single function in traditional processes. This design prevents the loss of uncoagulated soy milk while ensuring drainage during the molding stage.

[0064] In some embodiments, see Figures 3-7 The dynamic water-blocking mechanism 4 includes a water-blocking body 41 and an electric rotating shaft 42. The electric rotating shaft 42 is fixedly mounted on the L-shaped support bar 25 and includes a support 421, a rotating shaft 422, a first drive motor 423, a coupling 424, and a rotary encoder 425.

[0065] Support 421 is fixedly connected to L-shaped support bar 25 by bolts, and has a bearing seat inside. Rotary shaft 422 is rotatably mounted in support 421 by bearing. One end of rotary shaft 422 is provided with a long strip-shaped clamp, which has two working states: open and closed.

[0066] The first drive motor 423 is fixed to the side of the support 421 by bolts, and its output shaft is connected to the rotating shaft 422 through a coupling 424. The rotary encoder 425 is disposed between the output shaft of the first drive motor 423 and the coupling 424 and is used to record the rotation state of the rotating shaft 422.

[0067] It should be noted that the water-blocking body 41 is made of food-grade plastic film. Because the temperature of the soy milk injected into the double-layer box mechanism 3 can reach above 90 degrees Celsius, the material of the food-grade plastic film is strictly selected from high-temperature resistant polyvinylidene chloride or high-temperature resistant polyethylene, and its width matches the width of the outer box 31. One end of the plastic film is fixedly clamped in the long strip-shaped clamp of the rotating shaft 422, and the rest is laid flat in the gap between the outer box 31 and the mesh box 32.

[0068] Understandably, when the device starts working, the plastic wrap of the water-blocking body 41 completely covers the water seepage holes of the outer box 31, forming a waterproof barrier. After the soy milk is coagulated, it is injected into the mesh box 32 through the feeding mechanism 5. At this time, the food-grade plastic film prevents the uncoagulated soy milk from seeping out through the water seepage holes of the outer box 31.

[0069] After the soy milk coagulates into tofu pudding inside the mesh box 32, the control system activates the first drive motor 423. The first drive motor 423 drives the rotating shaft 422 to rotate via the coupling 424. The elongated clamp of the rotating shaft 422 gradually rolls up the plastic wrap. The rotary encoder 425 monitors the rotation status of the rotating shaft 422 in real time. When the plastic wrap is completely removed from the double-layer box mechanism 3, the first drive motor 423 stops working.

[0070] It should be noted that when the water-blocking body 41 needs to be removed, the support telescopic motor 33 drives the mesh box 32 to rise, so that a gap is formed between the mesh box and the outer box, which makes it easier for the electric rotating shaft 42 to wind up the water-blocking body 41.

[0071] At this point, the drainage holes of the outer box 31 are fully exposed, and the loosening mechanism 6 begins to work, with the metal mesh curtain reciprocating within the tofu pudding to break it up. Subsequently, the squeezing mechanism 7 presses down, and the water in the tofu pudding is smoothly discharged through the drainage holes of the mesh box 32 and the outer box 31.

[0072] By combining the electric rotating shaft 42 with the food-grade plastic film, the automatic removal function of the water-blocking body 41 is achieved. The rotary encoder 425 ensures precise control of the plastic film removal process, preventing incomplete removal from affecting the drainage effect.

[0073] The fixed connection method of the support 421 and the bearing mounting structure of the rotating shaft 422 ensure the smooth rotation of the rotating shaft 422 and prevent the plastic wrap from shifting or getting stuck during the removal process. The design of the long strip clamp facilitates the quick installation and replacement of the plastic wrap, improving the ease of operation.

[0074] This structure combines water-blocking function with automatic control, ensuring effective leakage prevention during the soy milk coagulation stage and efficient drainage during the tofu forming stage.

[0075] In some embodiments, see Figures 3-9 The dynamic water-blocking mechanism 4 consists of a water-blocking body 41 and a movable spike plate assembly 43. The water-blocking body 41 is made of food-grade plastic film and a layer of fine cotton gauze. Because the temperature of the soy milk injected into the double-layer box mechanism 3 can reach above 90 degrees Celsius, the food-grade plastic film is made of high-temperature resistant polyvinylidene chloride or high-temperature resistant polyethylene. The food-grade plastic film is placed inside the mesh box 32. The layer of fine cotton gauze is placed inside the food-grade plastic film. The four frames and bottom surfaces of the outer box 31 and the mesh box 32 are evenly distributed with water seepage holes. The mesh box 32 is nested inside the outer box 31. The positions of the water seepage holes in the two are corresponding, but the mesh box has a smaller hole diameter.

[0076] The movable spike plate assembly 43 is disposed around the perimeter and bottom of the outer box 31. The movable spike plate assembly 43 consists of a bottom spike plate base 431, a drive mechanism 432, and a guide system 433. The bottom spike plate base 431 is made of stainless steel plate, with densely packed puncture needles evenly arranged on its surface. For example, the base thickness is 5 mm, and the surface is arrayed with puncture needles of 2 mm diameter. The exposed portion of each puncture needle is 8 mm long, and its tip is precision ground to form a pointed structure. The center-to-center spacing of each puncture needle is 6 mm, and the needle tips face the mesh openings of the double-layer box mechanism. A 2 mm diameter drainage hole is provided at the center point where four adjacent puncture needles intersect to enhance drainage efficiency during the extrusion process.

[0077] The bottom barbed plate base 431 has a guide hole at each of its four corners; the guide system 433 includes four guide rods, each with a stepped structure design, having a thicker end and a thinner end, with the thicker end of the guide rod fixedly mounted on the drawer bottom plate. The bottom barbed plate base 431 engages with the guide rods through the guide holes at its four corners, resting stably on the thicker end plane of the guide rods, with the piercing needle on the bottom barbed plate base 431 facing the bottom drainage hole of the outer box 31. The drive mechanism 432 consists of a push rod and a matching drive motor, and is vertically mounted directly below the bottom barbed plate base 431.

[0078] Understandably, during operation, after the drive motor starts, it drives the push rod to rise upward, pushing the bottom spike plate base 431 to rise smoothly along the guide rod. During this process, the piercing needle on the bottom spike plate base 431 sequentially penetrates the bottom seepage hole of the outer box 31, the bottom seepage hole of the mesh box 32, and the water blocking body 41. After completing the piercing action, it pauses briefly to ensure complete penetration, and then the push rod retracts, causing the bottom spike plate base 431 to return to its initial position along the guide rod.

[0079] The base of the left and right barbed plates is made of 431 stainless steel plate, with densely packed puncture needles evenly arranged on the surface. For example, the base thickness is 5 mm, and the surface is arrayed with puncture needles of 2 mm diameter. The exposed portion of each puncture needle is 8 mm long, and its tip is precision ground to form a pointed structure. The center-to-center spacing of each puncture needle is 6 mm, and the needle tips face the mesh openings of the double-layer box mechanism. A 2 mm diameter drainage hole is provided at the center point where four adjacent puncture needles meet to enhance drainage efficiency during the extrusion process.

[0080] The left and right barbed plate bases 431 have guide holes at their four corners. The guiding system 433 includes four guide rods and a left and right slide rail slider mechanism. The guide rods have a stepped structure with a thick end and a thin end, and the thick end of the guide rod is fixedly mounted on the support frame 1. The left and right barbed plate bases 431 cooperate with the guide rods through the guide holes and achieve guided movement through the sliders and slide rails. The piercing needles on the left and right barbed plate bases 431 face the water seepage holes on the side wall of the outer box 31. The drive mechanism 432 includes a bidirectional threaded screw and a drive motor. The bidirectional threaded screw has positive and negative thread sections that spread out from the middle of the screw to both sides, and the two ends of the bidirectional threaded screw are respectively connected to the left and right barbed plate bases 431. The drive motor is connected to the bidirectional threaded screw through a coupling, and the output shaft of the drive motor is equipped with a rotary encoder, which monitors the rotation status of the bidirectional threaded screw in real time. The power lines and signal lines of the drive motor and the rotary encoder are connected to the upper terminal block.

[0081] Understandably, during operation, the drive motor starts and rotates the bidirectional threaded screw. Due to the forward and reverse thread design of the bidirectional threaded screw, the left and right spike plate bases 431 move synchronously towards each other under the guidance of the slide rail slider. The piercing needles on the spike plate base 431 sequentially penetrate the water seepage holes on the side wall of the outer box 31, the water seepage holes on the side wall of the mesh box 32, and the water-blocking body 41. The rotary encoder monitors the rotation angle of the screw in real time to ensure that the spike plate moves into position. After completing the piercing, there is a brief pause, and then the drive motor reverses to reset the spike plate base 431.

[0082] The front and rear end barbed plate bases 431 are metal plates with densely packed puncture needles, and guide holes are provided at the four corners of the front and rear end barbed plate bases 431. The guiding system 433 includes four guide rods and a front and rear slide rail slider mechanism. The guide rods have a stepped structure with a thick end and a thin end, and the thick end of the guide rod is fixed to the support frame 1. The barbed plate bases 431 cooperate with the guide rods through the guide holes and achieve guided movement through the sliders and slide rails. The puncture needles face the water seepage holes on the side wall of the outer box 31. The drive mechanism 432 consists of a one-way threaded screw and a drive motor. The drive motor is connected to the one-way threaded screw through a coupling. The output shaft of the drive motor is equipped with a rotary encoder, which monitors the rotation status of the two-way threaded screw in real time. The power lines and signal lines of the drive motor and the rotary encoder are connected to the upper terminal block.

[0083] Understandably, during operation, the drive motor starts and rotates the one-way threaded screw, pushing the front and rear end barbed plate bases 431 along the slide rail slider. The piercing needle sequentially penetrates the water seepage holes in the front wall of the outer box 31, the mesh holes in the rear wall of the mesh box 32, and the water-blocking body 41. The rotary encoder monitors the rotation angle of the screw in real time, pauses briefly after piercing, and then the drive motor reverses to reset the barbed plate base 431.

[0084] This structure achieves dynamic switching of water-blocking function through precise mechanical coordination. During the soy milk coagulation stage, the complete water-blocking layer ensures no liquid leakage. During the tofu forming stage, the coordinated piercing of the movable piercing plate assembly 43 forms drainage channels.

[0085] It should be noted that, if the location permits, the drive mechanism 432 can also be other lifting equipment such as pneumatic cylinders or electric hydraulic jacks.

[0086] In some embodiments, the dynamic water-blocking mechanism 4 includes a water-blocking body 41, which is composed of two layers of fine cotton gauze. Each layer of fine cotton gauze is coated with a soluble water-blocking coating. This soluble water-blocking coating uses plant-extracted adhesive, which can withstand liquid temperatures of 90 to 85 degrees Celsius for 25 minutes without leaking. For example, a specially formulated glutinous rice adhesive, with glutinous rice as the main ingredient, is mixed with other plant-extracted raw materials. The fine cotton gauze layer is laid on the inner surface of the mesh box 32, completely covering the drainage holes of the mesh box 32.

[0087] After the soy milk is coagulated and poured into the mesh box 32, the bean curd cloth coated with plant-based adhesive remains leak-proof for up to 25 minutes while the soy milk coagulates into tofu pudding, preventing uncoagulated soy milk from seeping through the double-layered pure cotton gauze. After 25 minutes, the sealed plant-based adhesive on the bean curd cloth naturally dissolves, and the coating gradually dissolves under the influence of the soy milk's temperature.

[0088] Once the soy milk has completely coagulated into tofu pudding, the soluble water-resistant coating has largely dissolved, and the fine cotton gauze layer has regained its permeability. At this point, the support telescopic motor 33 is activated, pushing the mesh box 32 upward to squeeze it, allowing the water in the tofu pudding to drain out through the perforations of the fine cotton gauze layer and the mesh box 32.

[0089] The soluble water-blocking coating achieves automatic dissolution and conversion without manual intervention or additional mechanisms. This structure simplifies the water-blocking function switching process, automatically switching from leak prevention to drainage through material properties, and the overall structure is simple and reliable.

[0090] In some embodiments, after the soy milk coagulates in the coagulation container, the paste-like tofu curd is broken into uniform pieces by a rotating stirrer, and the pieces are then transported to a forming box by a pump. The forming box has only a single layer of fine cotton gauze in contact with the tofu curd, which directly receives the broken pieces. A mechanical extrusion device applies pressure to the material inside the box, causing water to seep out naturally from the gauze and the mesh of the box, thus completing the tofu shaping process.

[0091] In some embodiments, see Figure 14 and Figure 15The double-layer box mechanism 3 consists of a second outer box 34 and a mesh box 32. The outer box 34 is a sealed structure without mesh and has a drain pipe 35 at the bottom. The mesh box 32 is nested inside the second outer box 34, and the four walls and bottom surface of the mesh box 32 are provided with evenly distributed seepage holes.

[0092] The bottom of the second outer box 34 is equipped with a drain pipe 35, which is fitted with a drain valve and a drain pump. A layer of fine cotton gauze is laid inside the mesh box 32 as the direct contact layer for tofu forming.

[0093] The liquid soy milk, after the coagulation process is complete, is injected into the mesh box 32 through the feeding mechanism 5. At this time, the sealing structure of the second outer box 34 prevents the soy milk from leaking out. The soy milk gradually coagulates to form tofu pudding during the standing process.

[0094] After the tofu curd has solidified, the electric pusher is activated, pushing the mesh box 32 upward. The rise of the mesh box 32 brings it into contact with the upper extrusion mechanism 7, initiating the extrusion process. The tofu liquid produced during extrusion seeps out through the drainage holes of the mesh box 32, drips into the second outer box 34, and is finally discharged through the drain pipe 35.

[0095] In some embodiments, see Figure 10 , Figure 11 and Figure 16 The feeding mechanism includes a sliding bar 51, a first connecting block 52, a hollow feeding column 53, a first threaded rod 54, a second drive motor 55, a first transmission belt 56, and a snap-fit ​​sleeve 57. The sliding bar 51 is a dovetail-shaped guide rail, fixedly connected to the longitudinal frame of the support frame 1. The first connecting block 52 slides with the sliding bar 51 through a dovetail groove at its bottom, achieving directional displacement along the guide rail. The hollow feeding column 53 is vertically fixed to the top of the first connecting block 52, and its bottom has two types of through holes: a circular water outlet suitable for conveying liquid coagulated soy milk, and a long strip water outlet suitable for conveying paste-like tofu pudding.

[0096] The first threaded rod 54 is rotatably connected to the support frame 1 via a bearing seat and is arranged parallel to the sliding bar 51. A threaded hole is formed in the center of the snap-fit ​​sleeve 57, forming a threaded drive pair with the first threaded rod 54. The bottom of the snap-fit ​​sleeve 57 is rotatably connected to the outer wall of the hollow feed column 53 via a ball joint. The second drive motor 55 is fixed to the support frame 1, and the support frame 1 and the second drive motor 55 are connected via a mounting component. A drive pulley is mounted on the output shaft of the second drive motor 55. The first transmission belt 56 connects the drive pulley and the driven pulley at the end of the first threaded rod 54, forming a belt drive system.

[0097] When liquid soy milk needs to be delivered, the second drive motor 55 starts rotating in the forward direction. The first transmission belt 56 transmits power to the first threaded rod 54, driving it to rotate clockwise. The rotational motion of the first threaded rod 54 is converted into the linear displacement of the snap-fit ​​sleeve 57, pushing the hollow feed column 53 along the sliding bar 51 towards the top of the mesh box 32. After the hollow feed column 53 reaches the predetermined position, the normally closed electric valve opens, and the liquid soy milk is injected into the mesh box 32 through the bottom circular outlet. The electronically controlled metering device monitors the flow rate in real time and automatically closes the valve to complete the filling when the set value is reached.

[0098] When it is necessary to convey the paste-like tofu curd, the second drive motor 55 switches to reverse rotation. The first transmission belt 56 drives the first threaded rod 54 to rotate counterclockwise, and the traction clamp sleeve 57 and the hollow feed column 53 retract to the standby position along the sliding bar 51. The switching valve activates to open the elongated water outlet passage, and the crushed paste-like tofu curd is evenly spread into the mesh box 32 through the elongated water outlet. After the displacement sensor detects that the hollow feed column 53 has fully reset, it sends a signal to the control system to stop the motor operation.

[0099] In some embodiments, see Figure 12 and Figure 17 The loosening mechanism 6 includes a second connecting block 61, a drive rod 62, a third drive motor 63, a metal mesh 64, a second threaded rod 65, a linkage block 66, a fourth drive motor 67, and a second transmission belt 68. The second connecting block 61 is slidably connected to the sliding strip 51 through a dovetail groove at the bottom to achieve lateral displacement. The drive rod 62 is a hollow shaft structure and is horizontally installed inside the second connecting block 61 through bearings. The third drive motor 63 is vertically fixed to the top surface of the second connecting block 61, and its output shaft is directly connected to the end of the drive rod 62 through a coupling. The metal mesh 64 is a stainless steel mesh structure and is vertically connected to the bottom of the drive rod 62 through a hanging component.

[0100] The second threaded rod 65 is arranged parallel above the sliding bar 51, and its two ends are rotatably connected to the support frame 1 through bearing seats. A threaded hole is formed in the center of the linkage block 66, creating a threaded pair with the second threaded rod 65. The bottom of the linkage block 66 is rotatably connected to the middle of the drive rod 62 through a universal joint. The fourth drive motor 67 is fixed to the support frame 1, and a drive pulley is mounted on its output shaft. The second transmission belt 68 connects the drive pulley and the driven pulley at the end of the second threaded rod 65, forming a belt drive system.

[0101] When the tofu pudding has solidified and needs to be loosened, the fourth drive motor 67 starts, driving the second transmission belt 68 to rotate. The second transmission belt 68 drives the second threaded rod 65 to rotate, pushing the linkage block 66 to move axially along the threaded rod. The linkage block 66 pulls the drive rod 62 and the second connecting block 61 laterally along the sliding bar 51 via a universal joint. During the displacement, the third drive motor 63 synchronously drives the drive rod 62 to rotate, causing the metal mesh 64 to move on the surface of the tofu pudding.

[0102] As the metal mesh 64 moves laterally with the drive rod 62, its mesh-like structure continuously sinks into the tofu pudding. The rotational motion of the drive rod 62 causes the metal chains of the metal mesh 64 to generate 8, breaking the entire block of tofu pudding into uniform pieces. When the linkage block 66 moves to the end of the second threaded rod 65, the fourth drive motor 67 automatically reverses, driving the metal mesh 64 back to the starting position along the original path. After completing the reciprocating stroke, the metal mesh 64 is lifted and reset, and the loosening operation ends.

[0103] It should be noted that, while keeping the function of the components unchanged, the installation position can be reasonably selected to improve space utilization. Loosening mechanism 6 can be suspended from the top or installed upwards at the lower part of the partition plate.

[0104] In some embodiments, see Figure 13 The extrusion mechanism 7 includes a top support block 71, a top support arm 72, a middle support block 73, a bottom support arm 74, a bottom support block 75, a rigid plate 76, a third threaded rod 77, and a fifth drive motor 78. The top support block 71 is bolted to the center of the top crossbeam of the support frame 1. Two top support arms 72 are symmetrically arranged, with their first ends hinged to both sides of the top support block 71 via pins. The middle support block 73 is rotatably connected to the second ends of the two top support arms 72 via bearings. The first end of the bottom support arm 74 is hinged to both sides of the bottom of the middle support block 73 via pins. The bottom support block 75 is hinged to the second end of the bottom support arm 74 via pins. The rigid plate 76 is a 304 stainless steel plate with drainage holes and is vertically fixed to the lower surface of the bottom support block 75 by bolts.

[0105] The third threaded rod 77 is a bidirectional threaded rod, with its left-hand and right-hand threaded sections respectively threaded to the built-in nuts of the two central support blocks 73. The fifth drive motor 78 is fixedly mounted on the side of the central support block 73 via a flange, and its output shaft is directly connected to the end of the third threaded rod 77 via a coupling. The output shaft of the drive motor is equipped with a rotary encoder.

[0106] When the tofu pudding is loosened and needs to be extruded and shaped, the fifth drive motor 78 starts, driving the third threaded rod 77 to rotate. The left-hand threaded section of the third threaded rod 77 drives the left middle support block 73 to move to the right, while the right-hand threaded section drives the right middle support block 73 to move to the left. The opposing movement of the middle support blocks 73 pushes the top support arm 72 to deflect downwards around the hinge point of the top support block 71, simultaneously driving the bottom support arm 74 to unfold vertically.

[0107] The unfolding motion of the bottom support arm 74 is transmitted to the bottom support block 75, driving the rigid plate 76 to descend vertically. When the rigid plate 76 contacts the surface of the tofu pudding, the fifth drive motor 78 starts, driving the rotation of the third threaded rod 77. The rotational force of the third threaded rod 77 is converted into pressure on the rigid plate 76 through the four-bar linkage, applying pressure to the tofu pudding. The water that is squeezed out during the process is discharged through the drainage holes of the rigid plate 76. After the pressure is maintained for ten minutes, the fifth drive motor 78 automatically stops.

[0108] After extrusion is complete, the fifth drive motor 78 reverses, and the third threaded rod 77 drives the two central support blocks 73 to separate in the opposite direction. The top support arm 72 and the bottom support arm 74 then retract and fold, causing the rigid plate 76 to rise vertically to its initial high position. This extrusion mechanism achieves precise pressure control through a combination of a bidirectional threaded rod and a four-bar linkage force-increasing mechanism.

[0109] It should be noted that the lifting and lowering movement of the rigid plate 76 can also be achieved through the following driving methods: pneumatic cylinder, screw-type electric jack, electric push rod or electric cylinder.

[0110] It should be noted that, while keeping the function of the components unchanged, the installation position can be reasonably selected to improve space utilization. Loosening mechanism 7 can be suspended from the top or installed upwards at the lower part of the partition plate.

[0111] In some embodiments, see Figure 3 and Figure 4The extraction mechanism 2 includes a positioning groove 21, a parallel track assembly 22, a bottom support plate 23, an extraction panel 24, an L-shaped support strip 25, a limiting block, and a partition plate. The parallel track assembly 22 consists of multiple parallel 304 stainless steel tracks and is fixed to the bottom frame of the support frame 1, located between the cabinet partition plate and the bottom support plate 23. The positioning groove 21 is a U-shaped metal groove with a through groove at the bottom, allowing the parallel track assembly 22 to pass through the interior of the positioning groove 21. The guide groove is slidably connected to the surface of the parallel track assembly 22. The bottom support plate 23 is fixedly mounted on the top plane of the parallel track assembly 22. The extraction panel 24 is a long strip of stainless steel plate, vertically welded to the front end of the bottom support plate 23. The bottom support plate 23 is a stainless steel plate with a perforated array, and the surface of the bottom support plate 23 is evenly perforated with pinholes of a set diameter, for example, a pinhole diameter of 4 mm and a center distance of 6 mm between pinholes. The drainage holes on the drawer bottom facilitate the downward flow of tofu water or cleaning water. The divider is a perforated metal frame panel, with the dividers horizontally fixed to the vertical support frame. The numerous holes in the divider are designed to easily remove residues of soy milk and tofu during cleaning. For example, a cabinet divider panel measuring 1000 mm long * 650 mm wide * 8 mm thick has six horizontal dividers, each 36 mm wide * 10 mm thick, and four front-to-back dividers, each 36 mm wide * 10 mm thick, forming a grid structure. The metal frame is a rectangular frame welded from stainless steel round rods, and the connection between the metal rods and the drawer door panel and bottom panel ensures the overall structure is sturdy. The L-shaped support strip 25 is fixedly connected to the side of the pull-out panel 24 closest to the bottom support plate 23.

[0112] Understandably, when the tofu product needs to be removed, the operator grips the drawer panel 24 and applies force outward. The parallel track assembly 22 slides along the bottom guide groove, causing the bottom support plate 23 and the double-layer box mechanism mounted on it to move synchronously. The through groove at the bottom of the positioning slot 21 provides a through passage for the parallel track assembly 22. During the movement of the parallel track assembly 22, the cooperation between its bottom guide groove and the parallel track assembly 22 constrains the direction of movement, preventing the drawer from shifting. When the parallel track assembly 22 moves to the end of the track, the vertical surface of the limiting block prevents the parallel track assembly 22 from continuing to move, limiting the maximum drawer extension position. After completing the material removal operation, the drawer panel 24 is pushed inward.

[0113] In some embodiments, metal limiting pads are installed on the bottom support plate 23. The metal limiting pads are arranged regularly along the outer side of the bottom of the outer box 31. The metal limiting pads are fastened to the drawer metal bottom plate with flat-head screws. The outer box 31 is also fastened to the metal limiting pads with flat-head screws inside the outer box 31.

[0114] In some embodiments, during the soy milk coagulation stage, the water-blocking body 41 completely covers the overlapping area of ​​the seepage holes of the outer box 31 and the mesh box 32, forming a sealed and leak-proof state. When drainage is required, the water-blocking body 41 is removed or dissolved, and the overlapping area of ​​the seepage holes is opened to form a drainage channel.

[0115] The differentiated perforation design enables the conversion between leak prevention and drainage functions, while the structure of large holes surrounding smaller holes ensures smooth drainage. The precise coverage of overlapping perforation areas by 41 water-blocking elements guarantees reliable leak prevention.

[0116] In some embodiments, the self-cleaning system includes a water supply module, a spray module, and a drainage module. The water supply module includes cleaning fluid pipes and drinking water pipes, which are respectively connected to an external supply system. The spray module consists of an upper spray arm, a lower spray arm, and a dedicated spray arm. The upper spray arm is installed on the top of the cabinet, the lower spray arm is located at the bottom of the cabinet, and the dedicated spray arm is designed for specific components.

[0117] The core of the drainage module is the floor drain structure, located at the lowest point of the cabinet's base. Below it are connected in sequence the electrically controlled valve, drain pump, and liquid meter. The cabinet's base is designed with a sloping structure, the angle of which faces the floor drain. The support column height is adjustable to ensure the drainage pipes maintain a proper slope.

[0118] After the cleaning program is initiated, the system first supplies cleaning agent through the cleaning fluid pipeline. The upper and lower spray arms work simultaneously to thoroughly rinse the inner walls of the cabinet. A dedicated spray arm provides focused cleaning for special components such as the delivery pipes and the agitator shaft. After the cleaning agent has acted for a period of time, the system switches to the drinking water pipeline for a rinse with clean water.

[0119] Wastewater generated during cleaning flows along the sloping base to the floor drain. Once the electrically controlled valve opens, the drain pump starts to pump the wastewater out, and the liquid meter records the drainage volume. After drainage is complete, the electrically controlled valve automatically closes. The water volume, time, and procedure for the entire cleaning process can all be set and adjusted through the control system.

[0120] The multi-spray arm design achieves thorough cleaning without blind spots, ensuring hygiene and safety. Dedicated spray arms enhance cleaning effectiveness on critical components. The sloping base and drain structure guarantee complete drainage, preventing water accumulation and bacterial growth. The electrically controlled drainage system enables automated management, reducing manual operation.

[0121] Liquid metering helps monitor cleaning effectiveness and water consumption. Adjustable support columns adapt to different installation environments. The entire system is made of food-grade materials, making it corrosion-resistant and easy to clean. The modular design facilitates maintenance and extends equipment lifespan. This system effectively solves the hygiene and cleaning challenges of tofu production equipment, complying with food safety production standards.

[0122] This dynamic drainage tofu forming device integrates extrusion forming functionality, achieving tofu shaping through mechanical pressure. The device employs a multi-layer modular design, allowing for vertical stacking within a shared frame, supporting simultaneous independent operation of three or four layers. Each layer is equipped with an independent pressure system, enabling synchronous layered extrusion processing to meet the demands of efficient mass production.

[0123] Similar parts between the embodiments provided in this application can be referred to mutually. The specific implementation methods provided above are only a few examples under the overall concept of this application and do not constitute a limitation on the scope of protection of this application. For those skilled in the art, any other implementation methods extended from the solution of this application without creative effort shall fall within the scope of protection of this application.

Claims

1. A dynamic water-blocking tofu forming device, characterized in that, include: Support frame (1); A drawer mechanism (2), which is slidably mounted on a support frame (1) to achieve drawer-type displacement, includes: Positioning groove (21), the positioning groove (21) is fixedly connected to the bottom frame of the support frame (1); Parallel track assembly (22), which is slidably connected in positioning groove (21); Bottom support plate (23), which is fixedly installed on the top of the parallel track assembly (22); A removable panel (24) is vertically fixed to the front outer wall of the bottom support plate (23); L-shaped support bar (25), the L-shaped support bar (25) is fixedly connected to the side of the pull-out panel (24) near the bottom support plate (23); A double-layer box mechanism (3) is provided on the bearing surface of the bottom support plate (23); The double-layer box mechanism (3) includes: The outer box (31) is disposed on the upper surface of the bottom support plate (23), and the four frames and bottom surface of the outer box (31) are provided with water seepage holes; Mesh box (32), which is nested inside outer box (31), and the four frames and bottom surface of mesh box (32) are provided with seepage holes corresponding to those of outer box (31); A telescopic support motor (33) is fixed on an L-shaped support bar (25), and the output end of the telescopic support motor (33) is connected to the bottom of the mesh box (32). The dynamic water-blocking mechanism (4) includes: a water-blocking body (41), which is disposed in a spatial structure composed of an outer box (31) and a mesh box (32); Feeding mechanism (5), which is movably disposed on the upper part of support frame (1); Loosening mechanism (6), which is located directly above the mesh box (32); The extrusion mechanism (7) is located on the top of the support frame (1) and directly above the mesh box (32).

2. The tofu forming device with dynamic drainage according to claim 1, characterized in that, The water barrier (41) includes a food-grade plastic film, which is disposed between the outer box (31) and the mesh box (32); The dynamic water-blocking mechanism (4) also includes an electric rotating shaft (42), which is fixedly mounted on an L-shaped support bar (25); The electrically rotating shaft (42) includes: Support (421), which is fixedly connected to the L-shaped support bar (25); A rotating shaft (422) is rotatably mounted on a support (421). The rotating shaft (422) is provided with an elongated clamp, which has an open state and a closed state. The first drive motor (423) is fixedly mounted on the support (421); A coupling (424) is provided, wherein the coupling (424) connects the output end of the first drive motor (423) to the rotating shaft (422); A rotary encoder (425) is disposed between the output shaft of the first drive motor (423) and the coupling (424).

3. The tofu forming device with dynamic drainage according to claim 1, characterized in that, The water-blocking body (41) includes: A food-grade plastic film is disposed inside the mesh box (32); A layer of fine cotton gauze is disposed on the inside of a food-grade plastic film.

4. The tofu forming device with dynamic drainage according to claim 3, characterized in that, The dynamic water-blocking mechanism (4) also includes a movable barbed plate assembly (43), which is disposed around the perimeter and bottom of the outer box (31); The movable barbed plate assembly (43) includes: multiple barbed plate bases (431), multiple drive mechanisms (432), and multiple guide systems (433); The surface of the piercing plate substrate (431) is provided with an array of piercing needles, which are located around the perimeter and bottom of the outer box (31); The fixed end of the drive mechanism (432) is connected to the support frame (1), and the power end of the drive mechanism (432) is connected to the spike plate base (431). The guiding system (433) is disposed around the perimeter and bottom of the outer box (31) and is connected to the spike plate base (431); When the driving mechanism (432) drives multiple barbed plate bases (431) to move, the guiding system (433) guides and constrains the movement trajectory of the barbed plate bases (431).

5. The tofu forming device with dynamic drainage according to claim 1, characterized in that, The water-blocking body (41) includes: a pure cotton fine mesh gauze layer coated with a soluble water-blocking coating, the pure cotton fine mesh gauze layer being disposed on the inner surface of the mesh box (32); The soluble water-resistant coating dissolves after maintaining its waterproof function for a predetermined time. The pure cotton fine mesh gauze layer is configured as two layers, and each layer of pure cotton fine mesh gauze layer is coated with the soluble water-resistant coating.

6. The tofu forming device with dynamic drainage according to claim 1, characterized in that, The feeding mechanism (5) includes: A sliding bar (51) is fixedly connected to the support frame (1); The first connecting block (52) is slidably connected to the sliding strip (51). The sliding strip (51) has a dovetail-shaped cross section, and the inner wall of the first connecting block (52) is provided with a matching dovetail groove. A hollow feed column (53) is fixedly connected to a first connecting block (52); The bottom of the hollow feed column (53) is provided with a through hole, which includes a circular water outlet hole and a long strip water outlet hole; The hollow feed column (53) has an input port on its side; The first threaded rod (54) is rotatably connected to the support frame (1); The second drive motor (55) is fixedly connected to the support frame (1), and the support frame (1) and the second drive motor (55) are connected by a mounting component; The first transmission belt (56) connects the output shaft of the second drive motor (55) to the connecting shaft of the first threaded rod (54); A snap-fit ​​sleeve (57) is threadedly connected to a first threaded rod (54), and the bottom of the snap-fit ​​sleeve (57) is rotatably connected to the outer wall of the hollow feed column (53).

7. The tofu forming device with dynamic drainage according to claim 6, characterized in that, The loosening mechanism (6) includes: The second connecting block (61) is slidably connected to the sliding bar (51); A drive rod (62) is rotatably connected to the inner wall of the second connecting block (61); The third drive motor (63) is fixedly connected to the second connecting block (61), and the output shaft of the third drive motor (63) is fixedly connected to the drive rod (62); Metal mesh (64), wherein the metal mesh (64) is placed on the drive rod (62), and the metal mesh (64) is a mesh-like structure; The second threaded rod (65) is rotatably connected to the support frame (1); Linkage block (66), which is threadedly connected to the second threaded rod (65), and is rotatably connected to the drive rod (62); The fourth drive motor (67) is fixedly connected to the support frame (1); The second transmission belt (68) connects the output shaft of the fourth drive motor (67) to the connecting shaft of the second threaded rod (65).

8. The tofu forming device with dynamic drainage according to claim 1, characterized in that, The extrusion mechanism (7) includes: The top support block (71) is connected to the top of the support frame (1); There are two top support arms (72) symmetrically arranged, and the first end of each top support arm (72) is hinged to the top support block (71); A middle support block (73) is rotatably connected to the second end of the top support arm (72); Bottom support arm (74), the first end of which is hinged to the bottom of the middle support block (73); Bottom support block (75), which is hinged to the second end of bottom support arm (74); A rigid plate (76) is fixedly connected to the bottom of the bottom support block (75); The third threaded rod (77) is a bidirectional threaded rod, and the third threaded rod is threadedly connected to the inner wall of the two central support blocks (73) respectively; The fifth drive motor (78) is fixedly connected to the central support block (73), and the output shaft of the fifth drive motor (78) is fixedly connected to the connecting shaft of the third threaded rod (77); The rigid plate (76) is located directly above the mesh box (32).

9. The tofu forming device with dynamic drainage according to claim 1, characterized in that: The diameter of the seepage holes in the outer box (31) is larger than that in the mesh box (32), and the central axes of the seepage holes in the outer box (31) and the seepage holes in the mesh box (32) are aligned and coincide. When the water-blocking body (41) is present, the area where the axes of the seepage holes coincide is completely covered by the water-blocking body (41). When the water-blocking body (41) is deactivated, the seepage holes form a through drainage channel.

10. A dynamic drainage-resistant tofu forming device, characterized in that, include: Support frame (1); A drawer mechanism (2), which is slidably mounted on a support frame (1) to achieve drawer-type displacement, includes: Positioning groove (21), the positioning groove (21) is fixedly connected to the bottom frame of the support frame (1); Parallel track assembly (22), which is slidably connected in positioning groove (21); Bottom support plate (23), which is fixedly installed on the top of the parallel track assembly (22); A removable panel (24) is vertically fixed to the front outer wall of the bottom support plate (23); L-shaped support bar (25), the L-shaped support bar (25) is fixedly connected to the side of the pull-out panel (24) near the bottom support plate (23); A double-layer box mechanism (3) is provided on the bearing surface of the bottom support plate (23); The double-layer box mechanism (3) includes: The second outer box (34) is connected to the top of the bottom support plate (23), and the bottom of the second outer box (34) is provided with a drain pipe (35); Mesh box (32), which is nested inside the second outer box (34), and the mesh box (32) has drainage holes on its four sides and bottom surface; A telescopic support motor (33) is fixed on an L-shaped support bar (25), and the output end of the telescopic support motor (33) is connected to the bottom of the mesh box (32). Feeding mechanism (5), which is movably disposed on the upper part of support frame (1); Loosening mechanism (6), which is located directly above the mesh box (32); The extrusion mechanism (7) is located on the top of the support frame (1) and directly above the mesh box (32).

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