Bean curd self-pressing machine

Abstract

The utility model belongs to the technical field of bean curd production equipment, and relates to a bean curd self-pressing machine which comprises a machine frame, a vertically-through self-pressing frame is arranged on the machine frame, a plurality of mold frames are stacked in the self-pressing frame, bean curd exceeding the upper end face of the mold frames is loaded in the mold frames, and the mold frames are arranged on the machine frame. The bean curd abuts against the bottom of the upper-layer mold frame to form a self-pressing dehydration structure, a clamping mechanism, a lifting mechanism and an output mechanism are arranged below the self-pressing frame, the clamping mechanism is driven by a power device to clamp or loosen the bottommost mold frame, the lifting mechanism is driven by the power device to upwards support the mold frame, and the output mechanism is driven by the power device to output the bean curd. The lifting mechanism and the clamping mechanism are matched to separate the mold frame on the lowermost layer, the lifting mechanism supports the separated mold frame to move downwards and enter the output mechanism, and the output mechanism supports the separated mold frame and conveys the separated mold frame out of the rack. The bean curd self-pressing machine provided by the utility model has the advantages of simple structure and convenience in operation.

Description

Technical Field

[0001] This utility model belongs to the technical field of tofu production equipment, and relates to a self-pressing tofu machine. Background Technology

[0002] In the tofu production process, dehydration and pressing are crucial steps. Chinese utility model patent CN201146796Y (publication date: 2008-11-12) discloses a gantry-type self-pressurized dehydrator, which consists of a steel frame structure, an arm lifting mechanism, a moving block mechanism, and a control device. The lower part of the steel frame structure is connected to a base, with upright plates fixed on both sides and a support plate connected to the top. The support plate is connected to a slide rail plate. Below is a plate positioning mechanism, which consists of plate positioning wheels, positioning blocks, a mold, and a support beam. The support beam is fitted with positioning wheels and the positioning blocks, connecting to the mold. The arm lifting mechanism consists of an arm beam, sprockets, and support rollers. The moving block mechanism consists of an arm beam, sprockets, a moving slider, and a coupling.

[0003] When the self-pressurized dehydrator removes the bottom layer mold, all the molds above the bottom layer need to be lifted. Since there are many stacked molds, lifting them is not easy, and frequently moving the molds up and down is not conducive to the formation of tofu. Utility Model Content

[0004] This invention addresses the shortcomings of existing technologies by providing a self-pressing tofu machine, which has the advantages of simple structure, convenient operation, and high degree of automation.

[0005] To solve the above-mentioned technical problems, the objective of this utility model is achieved through the following technical solution:

[0006] A self-pressing tofu machine includes a frame with a vertically extending self-pressing frame on the frame. Several mold frames are stacked within the self-pressing frame, and tofu exceeding its upper surface is loaded into each mold frame. The tofu abuts against the bottom of the upper mold frame, forming a self-pressing dehydration structure. A clamping mechanism, a lifting mechanism, and an output mechanism are arranged below the self-pressing frame. The clamping mechanism, driven by a power device, clamps or releases the lowermost mold frame. The lifting mechanism, driven by a power device, supports the mold frame upwards. The lifting mechanism cooperates with the clamping mechanism to separate the lowermost mold frame. The lifting mechanism supports the separated mold frame, moves it downwards, and enters the output mechanism. The output mechanism carries the separated mold frame and transports it out of the frame.

[0007] In the aforementioned self-pressing tofu machine, the clamping mechanism includes a pair of clamping arms, which are driven by clamping cylinders to move in opposite directions or in the horizontal direction to clamp or release the mold frame; preferably, a pair of clamping cylinders are provided and each drives the two clamping arms to move; preferably, the clamping arms are U-shaped clamping arms adapted to the outer contour of the mold frame; the driving mechanism of the clamping arms can also be replaced by other mechanisms in this field, such as motors.

[0008] In the aforementioned self-pressing tofu machine, the lifting mechanism includes a lifting platform, which is driven to move up and down by a lifting cylinder below it. The lifting platform is positioned corresponding to the center of the mold frame. The driving mechanism of the lifting platform can also be replaced by other mechanisms in this field, such as an electric push rod.

[0009] In the aforementioned self-pressing tofu machine, the self-pressing frame, clamping cylinder, and lifting cylinder are all fixedly connected to the machine frame.

[0010] In the aforementioned self-pressing tofu machine, the output mechanism includes a motor-driven circulating chain, which is distributed on both sides of the lifting mechanism; the plane containing the lower limit of the lifting platform's stroke is lower than the bearing plane containing the circulating chain.

[0011] In the aforementioned self-pressing tofu machine, a feeding conveyor is provided on one side of the frame, and a discharging conveyor is provided on the other side. A truss is provided above the frame and the feeding conveyor, and a robotic arm for gripping and transferring the mold frame is slidably mounted on the truss. The discharging conveyor is connected to the output mechanism. Both the feeding conveyor and the discharging conveyor are driven by motor-driven circulating chains.

[0012] In the aforementioned self-pressing tofu machine, multiple self-pressing frames, robotic arms, clamping mechanisms, and lifting mechanisms are provided and correspond one-to-one; multiple clamping mechanisms can share a clamping cylinder, and when shared, multiple clamping mechanisms are connected into one unit through a connecting plate.

[0013] Compared with the prior art, this utility model has the following advantages:

[0014] This invention provides a self-pressing tofu machine, which uses a clamping mechanism and a lifting mechanism to separate the bottom mold frame. The separation action is simple and smooth, with low energy consumption. During separation, the mold frame does not move up and down frequently, which is more conducive to the self-pressing and forming of tofu. The separated mold frame is output from the machine frame through an output mechanism. Furthermore, this invention also includes a feeding conveyor mechanism with a robotic arm and a discharging conveyor mechanism that connects to the output mechanism, realizing full automation of the self-pressing of tofu. Attached Figure Description

[0015] Figure 1 This is the front view of this utility model;

[0016] Figure 2 This is the front view (middle section) of this utility model;

[0017] Figure 3 This is a perspective view of a single self-pressurizing device of this utility model;

[0018] Reference numerals: 1. Frame; 2. Self-pressurizing frame; 3. Mold frame; 4. Clamping mechanism; 41. Clamping arm; 42. Clamping cylinder; 5. Lifting mechanism; 51. Lifting platform; 52. Lifting cylinder; 6. Output mechanism; 61. Motor; 62. Circulating chain; 7. Feeding conveyor mechanism; 8. Unloading conveyor mechanism; 9. Truss; 10. Robot arm. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. See also: Figure 1-3 :

[0020] A self-pressing tofu machine includes a frame 1 with a vertically extending self-pressing frame 2 on the frame 1. Several mold frames 3 are stacked inside the self-pressing frame 2. Tofu exceeding the upper surface of each mold frame 3 is loaded inside the mold frame 3. The tofu abuts against the bottom of the upper mold frame 3, forming a self-pressing dehydration structure. A clamping mechanism 4, a lifting mechanism 5, and an output mechanism 6 are arranged below the self-pressing frame 2. The clamping mechanism 4 is driven by a power device to clamp or release the lowermost mold frame 3. The lifting mechanism 5 is driven by a power device to lift the mold frame 3 upwards. The lifting mechanism 5 cooperates with the clamping mechanism 4 to separate the lowermost mold frame 3. The lifting mechanism 5 supports the separated mold frame 3, moves it downwards, and enters the output mechanism 6. The output mechanism 6 carries the separated mold frame 3 and transports it out of the frame 1.

[0021] The workflow of this embodiment is as follows: The feeding mechanism places the mold frames 3 containing tofu into the self-pressing frame 2 in a stacked manner. In the initial state, the clamping mechanism 4 clamps the bottom mold frame 3, keeping all the mold frames 3 stationary, and the lifting mechanism 5 is in a low position. The lifting mechanism 5 is activated and moves upward until it touches the bottom of the bottom mold frame 3. The clamping mechanism 4 is then released, and the mold frames 3 support the bottom mold frame 3 and all the stacked mold frames 3 above it. The lifting mechanism 5 lifts all the mold frames 3 and moves them down one frame position. The clamping mechanism 4 re-clamps the mold frames 3, and the lifting mechanism 5 continues to move downward. The bottom mold frame 3 moves downward to the output mechanism 6, while the other mold frames 3 are supported by the clamping mechanism 4. The bottom mold frame 3 is thus separated, and the separated mold is output from the frame 1 by the output mechanism 6. The feeding mechanism then adds a mold frame 3 to be self-pressed on the top layer of the self-pressing frame 2.

[0022] The specific structures of each mechanism in this embodiment are as follows:

[0023] Clamping mechanism 4: The clamping mechanism 4 includes a pair of clamping arms 41, which are driven by clamping cylinders 42 to move in opposite directions or in the horizontal direction to clamp or release the mold frame 3; preferably, the clamping cylinders 42 are provided in pairs and drive the two clamping arms 41 to move respectively; preferably, the clamping arms 41 are U-shaped clamping arms 41 adapted to the outer contour of the mold frame, and the clamping cylinders 42 are horizontally arranged. When the piston rod of the clamping cylinders 42 extends or retracts, the clamping arms 41 clamp or release accordingly.

[0024] Lifting mechanism 5: The lifting mechanism 5 includes a lifting platform 51, which is driven to move up and down by a lifting cylinder 52 below it. The lifting platform 51 is correspondingly arranged in the middle of the mold frame 3. The lifting cylinder 52 is vertically arranged. When the piston rod of the lifting cylinder 52 extends or retracts, the lifting platform 51 moves up and down accordingly.

[0025] The self-pressurizing frame 2, clamping cylinder 42 and lifting cylinder 52 mentioned above are all fixedly connected to the frame 1.

[0026] Output mechanism 6: The output mechanism 6 includes a circulating chain 62 driven by a motor 61, which is distributed on both sides of the lifting mechanism 5; the plane where the lower limit of the stroke of the lifting platform 51 is located is lower than the bearing plane where the circulating chain 62 is located, and the motor 61 drives the chain meshing with it to move cyclically through the sprocket, and the mold frame 3 moves outward with the upper chain.

[0027] Furthermore, this embodiment also includes an automatic feeding and unloading structure: a feeding conveyor 7 is provided on one side of the frame 1, and an unloading conveyor 8 is provided on the other side. A truss 9 is provided above the frame 1 and the feeding conveyor 7. A robotic arm 10 for gripping and transferring the mold frame 3 is slidably mounted on the truss 9. The unloading conveyor 8 is connected to the output mechanism 6. Both the feeding conveyor 7 and the unloading conveyor 8 are driven by a circulating chain 62 driven by a motor 61. The feeding conveyor 7 sequentially conveys the mold frame 3 to be self-pressed to the area below the robotic arm 10. The robotic arm 10 moves downward and clamps the mold frame 3, moves upward and then horizontally to the top of the self-pressing frame 2, moves downward to the top layer of the self-pressing frame 2, and then releases the mold frame 3 and resets. The output mechanism 6 conveys the mold frame 3 to the unloading conveyor 8, which further conveys it outward to the next process.

[0028] To improve efficiency, multiple self-pressing frames 2, robotic arms 10, clamping mechanisms 4, and lifting mechanisms 5 are provided in a one-to-one correspondence. Multiple robotic arms 10, clamping mechanisms 4, and lifting mechanisms 5 operate synchronously. In this embodiment, a total of four sets of self-pressing frames 2, robotic arms 10, clamping mechanisms 4, and lifting mechanisms 5 are provided, which can operate four mold frames 3 simultaneously. Multiple clamping mechanisms 4 can share clamping cylinders 42. When shared, multiple clamping mechanisms 4 are connected as one unit through connecting plates. In this embodiment, the four clamping mechanisms 4 are synchronously driven by two sets of clamping cylinders 42.

[0029] The above embodiments are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A tofu self-pressing machine comprising a frame (1) provided with a self-pressing frame (2) extending through the frame (1) from top to bottom, a plurality of mold frames (3) being stacked in the self-pressing frame (2), and tofu being loaded in the mold frames (3) beyond the upper end surface of the mold frames (3) and coming into contact with the bottom of the upper mold frame (3) to form a self-pressing dehydration structure, characterized in that, Below the self-pressurizing frame (2) are a clamping mechanism (4), a lifting mechanism (5), and an output mechanism (6). The clamping mechanism (4) is driven by a power device to clamp or release the bottom mold frame (3). The lifting mechanism (5) is driven by a power device to support the mold frame (3) upward. The lifting mechanism (5) and the clamping mechanism (4) cooperate to separate the bottom mold frame (3). The lifting mechanism (5) supports the separated mold frame (3) to move downward and enter the output mechanism (6). The output mechanism (6) carries the separated mold frame (3) and transports it out of the frame (1).

2. A soybean milk self-pressing machine according to claim 1, characterized in that, The clamping mechanism (4) includes a pair of clamping arms (41), which are driven by a clamping cylinder (42) to move in opposite directions in the horizontal direction to clamp or release the mold frame (3).

3. A soybean milk self-pressing machine according to claim 1, characterized in that, The lifting mechanism (5) includes a lifting platform (51), which is driven to move up and down by a lifting cylinder (52) below it. The lifting platform (51) is correspondingly arranged in the middle of the mold frame (3).

4. A soybean milk self-pressing machine according to claim 3, characterized in that, The output mechanism (6) includes a circulating chain (62) driven by a motor (61), and the circulating chain (62) is distributed on both sides of the lifting mechanism (5); the plane where the lower limit of the stroke of the lifting platform (51) is located is lower than the bearing plane where the circulating chain (62) is located.

5. A self-pressing tofu machine according to claim 1, characterized in that, A feeding conveyor (7) is provided on one side of the frame (1), and a discharging conveyor (8) is provided on the other side. A truss (9) is provided above the frame (1) and the feeding conveyor (7). A robotic arm (10) for grabbing and transferring the mold frame (3) is slidably provided on the truss (9). The discharging conveyor (8) is connected to the output mechanism (6).

6. A soybean milk self-pressing machine according to claim 5, characterized in that, The self-pressurizing frame (2), the robotic arm (10), the clamping mechanism (4), and the lifting mechanism (5) are all provided in multiple and correspond one-to-one.

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