Full-automatic bean curd making system

By integrating and precisely controlling the fully automated tofu-making system, the problems of low production efficiency and unstable quality of traditional tofu-making machines have been solved, achieving efficient and stable automated production and diversified product manufacturing.

CN120959436APending Publication Date: 2025-11-18KUNMING UNIVERSITY
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Patent Information

Application Number
CN202510985959.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-17
Publication Date
2025-11-18

AI Technical Summary

Technical Problem

Existing traditional tofu making machines rely heavily on manual operation, resulting in low production efficiency, high labor intensity, poor product quality consistency, hygiene and safety risks, and difficulty in adapting to changes in market demand.

Method used

A fully automated tofu-making system was designed, integrating grinding, boiling, air pressure, and forming components. It is equipped with ultrasonic, temperature, pressure, and liquid level sensors, and achieves fully automated operation and precise control through a controller.

Benefits of technology

It has achieved full automation from raw material input to tofu forming, which has improved production efficiency, ensured the stability and consistency of product quality, reduced labor intensity, enhanced equipment compatibility and scalability, and enabled flexible adjustment of process parameters according to market demand.

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Abstract

The invention relates to the technical field of food production equipment manufacturing, and discloses a full-automatic bean curd making system which comprises a box body, a grinding assembly, a boiling assembly, an air pressure assembly, a forming assembly and a controller. Wherein the box body is distributed in a left-right extending mode, the grinding assembly, the boiling assembly and the air pressure assembly are sequentially arranged from right to left, the forming assembly comprises the air pressure assembly, and the air pressure assembly is arranged above the forming assembly; the soybean milk grinding assembly is communicated with the soybean milk boiling assembly, and the soybean milk boiling assembly is output to the forming assembly through a pipeline; the soybean milk grinding assembly comprises an ultrasonic sensor, the soybean milk boiling assembly comprises a temperature sensor and a liquid level sensor, and the air pressure assembly comprises a pressure sensor. The production efficiency is improved, the bean curd quality control is stable, the labor intensity is reduced, meanwhile, good compatibility and expandability are achieved, and diversified requirements can be met.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of food production equipment manufacturing, in particular to a full-automatic bean curd making system. BACKGROUND

[0002] As a traditional bean product, the making process of bean curd mainly includes key steps such as bean grinding, boiling, point-mixing and pressing. At present, traditional bean curd making machines are mostly used for bean curd making.

[0003] However, the existing traditional bean curd making machine highly depends on manual operation to complete the key processes such as bean grinding, boiling, point-mixing and pressing. This manual or semi-manual production mode not only needs manual participation in many steps, but also has high labor intensity and low production efficiency, which restricts the improvement of production capacity. At the same time, the main factors such as the amount of coagulant added during point-mixing, temperature control, pressing force and time mainly rely on the experience of the operator, lack of accurate control, and finally lead to large fluctuations in key quality indicators such as product texture, taste and moisture content, making it difficult to achieve standardized and stable production. In the raw material processing, production processing and product exposure links, it is easy to be affected by environmental factors such as microorganisms and dust, and the control ability of the sanitary conditions of the production environment is limited, which exists potential food safety risks.

[0004] Therefore, it is necessary to provide a full-automatic bean curd making system to solve the problems of low production efficiency, many manual participation steps, high labor intensity, poor product quality consistency, potential health and safety risks and difficulty in adapting to market demand changes in the prior art. SUMMARY

[0005] Therefore, the present application provides a full-automatic bean curd making system, which aims to solve the problems of low production efficiency, many manual participation steps, high labor intensity, poor product quality consistency, potential health and safety risks and difficulty in adapting to market demand changes in the prior art.

[0006] The present application provides a full-automatic bean curd making system, which includes a box body, a grinding assembly, a boiling assembly, a gas pressure assembly, a forming assembly and a controller. The box body extends left and right, and the grinding assembly, the boiling assembly and the gas pressure assembly are arranged in sequence from right to left. The forming assembly includes the gas pressure assembly, and the gas pressure assembly is arranged above the forming assembly. The grinding assembly is connected with the boiling assembly, and the boiling assembly is output to the forming assembly through a pipeline. The grinding assembly includes an ultrasonic sensor, the boiling assembly includes a temperature sensor and a liquid level sensor, and the gas pressure assembly includes a pressure sensor.

[0007] Further, the pulping assembly comprises a plurality of sets of grinding elements arranged side by side and an adjusting element, the grinding element comprises a rotating shaft, a first servo motor and a grinding disc; the rotating shaft is arranged in an up-down distribution and is rotatably connected to the box body through a bearing; the grinding disc is provided in a plurality of sets and is sleeved on the rotating shaft; the grinding discs of different grinding elements are arranged in an interlaced manner, and the adjusting element is used for adjusting the spacing of the central axes of the grinding discs of different grinding elements.

[0008] Further, the pulping assembly further comprises a hollow inner cavity, a feeding hopper, a pulp outlet, a residue outlet and a water inlet end; the pulp outlet is provided with a filter screen and an electromagnetic on-off valve.

[0009] Further, the pulping assembly further comprises a tank body, a heating disc and an agitator; the tank body is connected to the pulp outlet at the pulp inlet end, the tank body is provided with a second servo motor at the bottom, the second servo motor drives a rotating rod through a transmission member, the rotating rod drives the upper end of the agitator to rotate, an agitator connector is arranged between the agitator and the rotating rod, and the temperature sensor is arranged in the agitator connector.

[0010] Further, the pulping assembly further comprises a point brine device, the point brine device comprises the liquid level sensor, a peristaltic pump, an electric regulating valve, a brine storage tank, a nozzle and a discharge port; wherein the brine storage tank and the peristaltic pump are communicated through a pipeline, the electric regulating valve is installed on the branch pipe of the nozzle; the liquid level sensor is used for monitoring the liquid level in the brine storage tank, and the controller controls the opening and closing of the electric regulating valve and the peristaltic pump.

[0011] Further, the gas pressure assembly comprises a lifting element, a pressing element, a tofu pressing box and the pressure sensor, the pressing element slides along the lifting element; the lifting element comprises a sliding rail support arranged on the box body, a sliding rail arranged on the sliding rail support and a sliding block in sliding connection with the sliding rail, and the sliding block is fixedly connected with the pressing element; the pressing element comprises a sliding seat connected with the lifting assembly, a pressing plate arranged on the sliding seat and a weight on the pressing plate; the pressure sensor is arranged at the bottom of the tofu pressing box, and the sliding of the pressing element is controlled through the gas cylinder and the electromagnetic valve.

[0012] Further, the forming assembly comprises a plurality of layers of tofu pressing boxes, and the tofu pressing boxes are in a drawer type structure, each layer is provided with an independent mold, a drainage hole and a water storage tank.

[0013] Further, the mold comprises a block element, a base and a frame, the frame is arranged on the base, and the block element is arranged in the frame.

[0014] Further, the adjusting piece comprises a fixed block, a moving block and a lead screw, a moving groove is arranged on one side of the box body, the fixed block is arranged on the side wall of the box body, the moving block is connected with the rotating shaft through a bearing, the lead screw penetrates through the fixed block and the moving block, and the moving block is driven to move by rotating the lead screw.

[0015] Further, a display screen is arranged outside the box body, the display screen is connected to the controller, keys are arranged on the display screen, the keys, the ultrasonic sensor, the temperature sensor, the pressure sensor, the liquid level sensor and the controller are electrically connected, and the controller is externally connected with a communication terminal.

[0016] Compared with the prior art, the full-automatic bean curd production system has the beneficial effects that:

[0017] 1. By integrating the pulping assembly, the boiling assembly, the air pressure assembly, the forming assembly and the controller in the box body, full-process automatic operation from raw material input to bean curd forming is realized, manual intervention is significantly reduced compared with the traditional manual or semi-manual production mode, production efficiency is improved, and large-scale production demand can be met.

[0018] 2. The ultrasonic sensor, the temperature sensor, the pressure sensor and the liquid level sensor are adopted to monitor and control key process parameters such as pulping fineness, soybean milk temperature, coagulation time and pressing force in real time, and the quality stability of each batch of bean curd is ensured through accurate control, the taste is consistent, and the influence of human factors on product quality is reduced.

[0019] 3. The controller can realize automatic process, greatly reduce manual operation steps, reduce the skill requirement for the operator, thereby reduce the labor intensity, and in addition, the resource utilization rate can be improved by accurately controlling the amount of raw materials and water.

[0020] 4. The center axes of different grinding elements are adjustable, so that the grinding accuracy can be controlled, and the system has good compatibility and scalability, can flexibly adjust process parameters according to market demand, and produce various bean products. At the same time, the multi-layer pressing structure and the drawer type design of the forming assembly enable the equipment to press multiple blocks of bean curd at a time, greatly improve the production efficiency, and meet the diversified needs of different consumers. BRIEF DESCRIPTION OF DRAWINGS

[0021] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments with reference made to the accompanying drawings. The drawings are for purposes of illustration only and are not considered a limitation of the present application. Furthermore, like reference numerals are used to denote like parts throughout the accompanying drawings. In the drawings:

[0022] Figure 1A whole structure diagram of a full-automatic bean curd making system provided by the embodiment of the present application is provided;

[0023] Figure 2 A side view of a full-automatic bean curd making system provided by the embodiment of the present application is provided;

[0024] Figure 3 A partial structure schematic view of a full-automatic bean curd making system provided by the embodiment of the present application is provided;

[0025] Figure 4 A partial structure schematic view of a full-automatic bean curd making system provided by the embodiment of the present application is provided.

[0026] In the figure: 01 - water inlet end, 02 - feeding hopper, 03 - residue outlet, 04 - rotating shaft, 05 - first servo motor, 06 - second servo motor, 07 - rotating rod, 08 - stirring head, 09 - pulp outlet, 10 - lifting piece, 11 - squeezing piece, 12 - bean curd pressing box, 13 - box body, 14 - air pressure assembly, 15 - forming assembly, 16 - drainage hole, 17 - water storage tank. DETAILED DESCRIPTION

[0027] Exemplary embodiments of the present disclosure will be described in greater detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it is understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be accurately conveyed to those skilled in the art. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0028] Referring to Figure 1 , Figure 2 , Figure 3 and Figure 4 , the full-automatic bean curd making system disclosed in the present application comprises a box body 13, a pulp grinding assembly, a pulp boiling assembly, an air pressure assembly 14, a forming assembly 15 and a controller. The box body 13 extends left and right, and the pulp grinding assembly, the pulp boiling assembly and the air pressure assembly 14 are arranged in sequence from right to left. The forming assembly 15 comprises the air pressure assembly 14, and the air pressure assembly 14 is arranged above the forming assembly 15. The pulp grinding assembly is in communication with the pulp boiling assembly, and the pulp boiling assembly is output to the forming assembly 15 through a pipeline. The pulp grinding assembly comprises an ultrasonic sensor, the pulp boiling assembly comprises a temperature sensor and a liquid level sensor, and the air pressure assembly 14 comprises a pressure sensor.

[0029] Therefore, the workflow is as follows: Soybean raw materials enter the grinding assembly through the feeding hopper 02, and the ultrasonic sensor monitors the grinding status in real time; the rotating shaft 04 drives the staggered grinding discs to crush the raw materials, and the slurry is output through the slurry outlet 09, while the soybean residue is separated through the residue outlet 03, completing the raw material input and grinding. The slurry output from the grinding assembly is transported to the cooking assembly through pipelines; the electric heating plate precisely heats the slurry, and the temperature sensor provides real-time data feedback; the stirrer operates continuously to prevent scorching and ensure uniform heating, completing the slurry transportation and cooking. After cooking, the liquid level sensor triggers the brine-injecting device; the peristaltic pump injects brine from the storage tank into the slurry quantitatively through the electric regulating valve, controlling the amount and time of brine addition, completing the brine-injection and coagulation control.

[0030] After coagulation, the soy milk is fed into the forming component 15 through a pipe; the pneumatic component 14 is activated: the solenoid valve controls the compressed gas to press the soy milk into the multi-layer drawer-type mold of the forming component 15; the soy milk is initially dehydrated through the drain hole 16 at the bottom of the mold; the pneumatic component 14 descends above the forming component 15 to press the tofu inside the mold; the pressure sensor monitors the pressing force in real time, and the controller dynamically adjusts the air pressure to achieve uniform pressurization; after pressing is completed, the pneumatic component 14 resets; the drawer-type structure is pulled out, and the formed tofu is exposed to the operating area; the dividing component set above the forming component 15 automatically divides the tofu into pieces, completing the forming output and cutting.

[0031] The controller integrates data from ultrasonic sensors, temperature sensors, liquid level sensors, and pressure sensors via a PLC; and automatically adjusts the grinding fineness, boiling temperature, brine addition amount, and pressing intensity to achieve closed-loop continuous production.

[0032] Its overall structure is as follows Figure 1 As shown: It includes a housing 13, a grinding assembly, a cooking assembly, a pneumatic assembly 14, a forming assembly 15, and a controller. The overall system is supported by the housing 13 extending to the left and right. The components are distributed in the order of material flow. Specifically, the grinding assembly is set on the right side to receive raw materials, the cooking assembly is set in the middle and connected to the pulp outlet 09 of the grinding assembly, the forming assembly 15 is set on the left side and connected to the output end of the cooking assembly, and the pneumatic assembly 14 is set directly above the forming assembly 15 and realizes the vertical pressing function through a lifting mechanism.

[0033] Specifically, the grinding assembly comprises a plurality of sets of grinding elements arranged side by side and an adjusting element, the grinding element comprises a rotating shaft 04, a first servo motor 05 and a grinding disc; the rotating shaft 04 is distributed up and down and is rotationally connected with the box 13 through a bearing; the grinding disc is provided with a plurality of sets, which are sleeved on the rotating shaft 04; the grinding discs of different grinding elements are arranged in a staggered manner, and the adjusting element can be used to adjust the spacing of the central axes of the grinding discs of different grinding elements. The grinding assembly further comprises a hollow inner cavity, a feeding hopper 02, a pulp outlet 09, a residue outlet 03 and a water inlet end 01; the pulp outlet 09 is provided with a filter screen and an electromagnetic on-off valve.

[0034] Therefore, the grinding element comprises two sets of grinding elements arranged side by side, each set comprising rotating shafts 04 distributed up and down, the rotating shaft 04 being rotationally connected with the box 13 through a bearing; each rotating shaft 04 is sleeved with a plurality of grinding discs, the grinding discs of different grinding elements being arranged in a staggered manner and having adjustable spacing. The top is provided with a feeding hopper 02, the bottom is provided with a pulp outlet 09, and the pulp outlet 09 is provided with a filter screen and an electromagnetic on-off valve and a residue outlet 03. The water inlet end 01 is connected with a water source, and an ultrasonic sensor is built in the inner cavity.

[0035] Specifically, the adjusting element comprises a fixed block, a moving block and a lead screw, a moving groove is arranged on one side of the box 13, the fixed block is arranged on the side wall of the box 13, the moving block is connected with the rotating shaft 04 through a bearing, and the lead screw penetrates the fixed block and the moving block, and the fixed block is driven to rotate by rotating the lead screw to drive the moving block to move.

[0036] As can be easily understood, the adjusting element comprises a fixed block which is fixedly connected to the side wall of the box 13, a moving block which is bearing-connected with the rotating shaft 04, and a lead screw which penetrates the fixed block and the moving block; the moving block is driven to horizontally displace by rotating the lead screw, so as to realize accurate adjustment of the spacing between the grinding discs. In turn, the grinding particle size can be controlled to meet different product requirements.

[0037] Specifically, the cooking assembly further comprises a bin body, a heating disc and a stirrer; the bin body is connected with the pulp outlet 09 at the pulp inlet end, the bin body is provided with a second servo motor 06 at the bottom, the second servo motor 06 drives a rotating rod 07 through a transmission member, the rotating rod 07 drives an upper end stirring head 08 to rotate, a stirring head 08 connector is arranged between the stirring head 08 and the rotating rod 07, and a temperature sensor is arranged in the stirring head 08 connector.

[0038] In one of the specific embodiments, the tank body is made of 304 stainless steel into a cylindrical sealed body, the bottom of the tank body is embedded with a ring-shaped electric heating disc, the heating area covers the tank bottom and the side wall, the heating disc is filled with a layer of heat-conducting silicone grease between the tank body to ensure the heat transfer efficiency. The stirring head 08 is provided with a three-blade propeller stirring head 08, the edge is rounded to avoid hanging pulp; the speed range is 50-200 rpm, which is stepless speed regulation by servo motor. The sensor probe protrudes 0.5mm from the connector side wall to directly contact the flowing slurry for improving the monitoring accuracy.

[0039] Therefore, the pulp inlet end is communicated with the pulp outlet 09 of the grinding and pulping assembly, and the bottom is provided with a second servo motor 06; the motor drives a vertical rotating rod 07 through a transmission member, the rod top is fixed with the stirring head 08 through a connector, and a temperature sensor is integrated in the connector inside the stirring head 08 to monitor the slurry temperature in real time.

[0040] Specifically, the slurry cooking assembly further comprises a point brine device, the point brine device comprises the liquid level sensor, the peristaltic pump, the electric regulating valve, the brine storage tank, the nozzle and the pulp outlet 09; wherein the brine storage tank and the peristaltic pump are communicated through a pipeline, and the electric regulating valve is installed on the branch pipe of the nozzle; the liquid level sensor is used to monitor the liquid level in the brine storage tank, and the controller controls the opening and closing of the electric regulating valve and the peristaltic pump.

[0041] Therefore, the liquid flow direction of the point brine device is set as a closed loop conveying from the brine storage tank to the peristaltic pump through the electric regulating valve and finally through the nozzle; wherein the liquid level sensor monitors the liquid level of the brine storage tank, and the controller links the regulating valve and the pump to start and stop.

[0042] In one of the preferred embodiments, the brine storage tank is made of food-grade transparent polycarbonate material, and double liquid level sensors are built-in, and the liquid level sensors are linked with the controller, and when the liquid level is lower than the threshold value, a material shortage alarm signal is sent. The peristaltic pump is connected with the outlet of the brine storage tank through a food-grade silica gel pipe, the electric regulating valve is installed at the front end of the nozzle branch pipe, the nozzle is a 316L stainless steel fan-shaped atomizing nozzle, the spray angle is 60°, and the distance from the liquid surface of the slurry cooking tank is 150mm. The brine storage tank is provided with a magnetic stirrer to prevent brine crystallization and precipitation.

[0043] In actual work, when the temperature sensor of the slurry cooking assembly detects that the soybean milk temperature reaches 85±1℃, a point brine instruction is sent to the controller, the peristaltic pump delivers brine at a flow rate of 30ml / s, and the electric regulating valve controls the flow rate steplessly according to the preset opening degree; the brine is uniformly sprayed to the surface of the soybean milk through the atomizing nozzle, and at the same time, the slurry cooking stirrer maintains a speed of 120 rpm to promote mixing. A flowmeter is also provided for real-time feedback and control error.

[0044] Specifically, the air pressure assembly 14 comprises the lifting member 10, the pressing member 11, the tofu pressing box 12 and the pressure sensor, the pressing member 11 slides along the lifting member 10; the lifting member 10 comprises a slide rail support arranged on the box body 13, a slide rail arranged on the slide rail support and a sliding block in sliding connection with the slide rail, the sliding block is fixedly connected with the pressing member 11; the pressing member 11 comprises a sliding seat connected with the lifting assembly, a pressing plate arranged on the sliding seat and a weight on the pressing plate; the pressure sensor is arranged at the bottom of the tofu pressing box 12, and the sliding of the pressing member 11 is controlled by the air cylinder and the electromagnetic valve.

[0045] Therefore, the slide rail support is fixed to the box body 13, and the sliding block slides along the slide rail; the sliding block is fixedly connected with the pressing member 11, and the pressing member 11 comprises a sliding seat, a pressing plate and a counterweight, and the pressing member 11 is driven to lift by the air cylinder.

[0046] Specifically, the forming assembly 15 comprises a plurality of layers of tofu pressing boxes 12, and each layer of the tofu pressing box 12 is in a drawer type structure and is provided with an independent mold, a drainage hole 16 and a water storage tank 17. The mold comprises a block piece, a base and a frame, the frame is arranged on the base, and the block piece is arranged in the frame.

[0047] Therefore, the tofu pressing box 12 is in a multi-layer drawer structure, each layer contains an independent mold, i.e. a block piece, a base and a frame, a drainage hole 16 is arranged at the bottom of the mold, and a water storage tank 17 is integrated below to collect the drained water. Through the block piece, the tofu can be automatically shaped into equal small pieces after the drawer is pulled out.

[0048] Specifically, a display screen is arranged outside the box body 13, the display screen is connected to the controller, a key is arranged on the display screen, the key, the ultrasonic sensor, the temperature sensor, the pressure sensor and the liquid level sensor are electrically connected with the controller, and the controller is externally connected with a communication terminal.

[0049] Therefore, the touch display screen is arranged outside the box body 13, and the operation key and the parameter setting interface are arranged inside; the controller is electrically connected with the ultrasonic sensor, the temperature sensor, the pressure sensor, the liquid level sensor, the servo motor, the electromagnetic valve and other execution mechanisms. The controller supports external industrial communication terminals to realize remote monitoring and data interaction.

[0050] From the above, in the application, through the integrated layout of the box 13 and the modular assembly design, the whole process of tofu making is realized closed operation; wherein the grinding assembly is provided with staggered grinding discs, and the distance can be adjusted through the lead screw, which is suitable for different product grinding granularity required, and meets different market demand; the temperature sensor in the boiling assembly is integrated in the connector of the stirring head 08, which can realize accurate temperature measurement; the forming assembly 15 is provided with air pressure lifting and drawer type mold, and the single pressing yield is improved; control precision: the controller monitors the data of multiple sensors, and controls the servo motor, electromagnetic valve and other actuators, so that the qualified rate of tofu products is improved.

[0051] Those skilled in the art will appreciate that embodiments of the application can be provided as methods, systems or computer program products. Accordingly, the application can take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the application can take the form of a computer program product embodied in one or more computer-usable storage media including, but not limited to, disk storage, CD-ROMs, optical storage devices, etc.

[0052] The application is described with reference to flowcharts and / or block diagrams according to the method, equipment (system) and computer program product of the embodiments of the application. It should be understood that each flow and / or block in the flowcharts and / or block diagrams can be implemented by computer program instructions, and the combination of the flows and / or blocks in the flowcharts and / or block diagrams. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing equipment to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing equipment produce a means for implementing the functions specified in the flowcharts and / or block diagrams. Figure 1 one or more flows and / or blocks Figure 1 an apparatus for performing the functions specified in one or more flows or blocks.

[0053] These computer program instructions can also be stored in a computer readable storage medium which can guide the computer or other programmable data processing equipment to work in a specific way, so that the instructions stored in the computer readable storage medium produce a product including instruction apparatus, which implements the functions specified in the flowcharts and / or block diagrams. Figure 1 one or more flows and / or blocks Figure 1 an apparatus for performing the functions specified in one or more flows or blocks.

[0054] These computer program instructions can also be loaded into a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce a computer implemented process, so that the instructions executed on the computer or other programmable equipment provide a means for implementing the functions specified in the flowcharts and / or block diagrams. Figure 1 one or more flows and / or blocks ​steps of the functions specified in the one or more blocks.

[0055] It should be noted that the above-mentioned embodiments are only used to illustrate the technical solutions of the present application, but not limit the present application. Although the present application has been described in detail with reference to the above-mentioned embodiments, those skilled in the art should understand that the technical solutions of the present application can still be modified or equivalent replaced without departing from the spirit and scope of the present application, and any modification or equivalent replacement should be covered in the protection scope of the claims of the present application.

Claims

1. A fully automated tofu-making system, characterized in that, It includes a housing, a pulping assembly, a boiling assembly, a pneumatic assembly, a molding assembly, and a controller, among which, The box extends left and right, and the grinding assembly, boiling assembly and air pressure assembly are arranged sequentially from right to left. The forming assembly includes the air pressure assembly, and the air pressure assembly is arranged above the forming assembly. The pulping assembly is connected to the pulp cooking assembly, and the pulp cooking assembly outputs the pulp to the molding assembly through a pipeline; The pulping assembly includes an ultrasonic sensor, the pulping assembly includes a temperature sensor and a liquid level sensor, and the air pressure assembly includes a pressure sensor.

2. The fully automatic tofu-making system according to claim 1, characterized in that, The grinding assembly includes multiple sets of grinding components arranged side by side and an adjusting component. The grinding components include a rotating shaft, a first servo motor, and a grinding disc. The rotating shafts are distributed vertically and are rotatably connected to the housing via bearings; there are several grinding discs, which are sleeved on the rotating shafts; The grinding discs of different grinding components are arranged alternately, and the adjusting component can be used to adjust the spacing between the central axes of the grinding discs of different grinding components.

3. The fully automatic tofu-making system according to claim 1, characterized in that: The pulping assembly also includes a hollow inner cavity, a feeding hopper, a pulp outlet, a slag outlet, and a water inlet; the pulp outlet is equipped with a filter screen and an electromagnetic switch valve.

4. A fully automatic tofu-making system according to claim 1 or 3, characterized in that: The pulp cooking assembly also includes a chamber, a heating plate, and a stirrer; The slurry inlet of the silo is connected to the slurry outlet. A second servo motor is installed at the bottom of the silo. The second servo motor drives a rotating rod through a transmission component. The rotating rod drives the upper stirring head to rotate. A stirring head connector is installed between the stirring head and the rotating rod. The temperature sensor is installed in the stirring head connector.

5. The fully automatic tofu-making system according to claim 1, characterized in that, The boiling assembly also includes a brine-adding device, which includes a level sensor, a peristaltic pump, an electric regulating valve, a brine storage tank, a nozzle, and a discharge port. The brine storage tank and the peristaltic pump are connected by a pipeline, and the electric regulating valve is installed on a branch pipe of the nozzle. The level sensor is used to monitor the level of the brine in the storage tank, and the controller controls the opening and closing of the electric regulating valve and the peristaltic pump.

6. The fully automatic tofu-making system according to claim 1, characterized in that, The pneumatic assembly includes a lifting component, a pressing component, a tofu pressing box, and the pressure sensor. The pressing component slides up and down along the lifting component. The lifting component includes a slide rail bracket on the box body, a slide rail on the slide rail bracket and a slider slidably connected to the slide rail, and the slider is fixedly connected to the pressing component. The pressing component includes a sliding seat connected to the lifting assembly, a pressing plate disposed on the sliding seat, and a weight on the pressing plate; The pressure sensor is located at the bottom of the tofu pressing box, and the sliding of the pressing component is controlled by a cylinder and a solenoid valve.

7. A fully automatic tofu-making system according to claim 1 or 6, characterized in that, The molding assembly includes a multi-layer tofu pressing box, and the tofu pressing box has a drawer-type structure, with each layer having an independent mold, drainage hole and water storage tank.

8. The fully automatic tofu-making system according to claim 7, characterized in that, The mold includes sub-components, a base, and a frame. The frame is disposed on the base, and the sub-components are disposed within the frame.

9. The fully automatic tofu-making system according to claim 2, characterized in that, The adjusting component includes a fixed block, a movable block, and a lead screw. A movable groove is provided on one side of the housing. The fixed block is located on the side wall of the housing. The movable block is connected to the rotating shaft through a bearing. The lead screw passes through the fixed block and the movable block. The movable block moves and the fixed block rotates when the lead screw rotates.

10. The fully automatic tofu-making system according to claim 1, characterized in that, A display screen is installed on the outside of the housing. The display screen is connected to the controller. Buttons are provided on the display screen. The buttons, ultrasonic sensor, temperature sensor, pressure sensor, and liquid level sensor are electrically connected to the controller. The controller is connected to an external communication terminal.

Citation Information

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