Multi-pass discharge port switching structure for a refiner

Abstract

The application provides a multi-pass pulp refiner automatic switching structure, which solves the problems that a single pulp refiner cannot automatically complete multi-pass pulp refining, and that multiple pulp refiners occupy a large area and have high procurement costs. The structure comprises a pulp refiner upper cover, at least two discharge ports, a shielding plate, a limiting and guiding assembly, a driving assembly, and a control unit. The at least two discharge ports are through openings in the circumferential side wall of the pulp refiner upper cover. The shielding plate comprises a shielding plate corresponding to each discharge port and is arranged outside the discharge port. The limiting and guiding assembly is fixed to the outer wall of the pulp refiner upper cover and is in sliding or hinged cooperation with the shielding plate. The driving assembly is in transmission connection with the shielding plate. The control unit is used to control the alternating switching of the opening and closing states of each discharge port, and only one discharge port is open at the same time. The application can realize multi-pass automatic pulp refining on a single device, reduce the equipment occupation area and procurement cost, improve the pulp refining operation efficiency and the sealing reliability of the discharge port, and is suitable for soy product processing scenes in narrow spaces.

Description

Technical Field

[0001] This application relates to the field of soybean product processing technology, specifically a multi-stage slag outlet switching structure for a grinding mill. Background Technology

[0002] Grinding is the core process in soy product production, and the functionality and performance of the grinding machine directly determine the soy milk yield, smoothness, and overall production efficiency. Currently, commercially available conventional grinding machines generally only have a single, fixed discharge port, corresponding to a single soy milk residue receiving container. If multiple grinding cycles are needed to improve soy milk quality, the industry typically employs two methods: one involves manual handling of soy milk residue transfer and container switching to assist in the second and even third grinding cycles; the other involves configuring a separate grinding machine for each grinding cycle, with multiple machines arranged sequentially to handle soy milk residue from different grinding cycles.

[0003] The aforementioned single-outlet pulping machine cannot independently complete automated multi-pass pulping, has high labor input costs and poor operational continuity, making it difficult to adapt to the needs of automated continuous production; the configuration of multiple pulping machines will significantly increase the overall equipment procurement cost and greatly increase the equipment footprint, making it unsuitable for application scenarios with limited space. Summary of the Invention

[0004] This application addresses the problem that existing pulp refiners typically only have a single slag outlet, resulting in low production efficiency and difficulty in meeting the requirements of large-scale and continuous production. It provides a pulp refiner multi-slag outlet switching structure, including a pulp refiner cover, at least two slag outlets, a baffle plate, a limiting guide assembly, a drive assembly, a rechargeable battery assembly, and a control unit. The at least two slag outlets are opened through the circumferential sidewall of the top cover of the pulper; The number of the baffle plates corresponds one-to-one with the number of the slag outlets, and each baffle plate is arranged on the outside of one of the slag outlets. The number of the limiting guide components corresponds one-to-one with the number of the baffles. Each limiting guide component is fixedly connected to the outer side wall of the upper cover of the pulper. Each baffle is connected to the corresponding limiting guide component in a sliding fit or a hinged fit. The number of drive components corresponds one-to-one with the number of shields. Each drive component is fixedly connected to the top surface or outer side wall of the pulper cover, and the movable end of each drive component is connected to the corresponding shield in a transmission manner. The control unit is connected to each of the drive components respectively. The control unit is configured to control each drive component to drive the corresponding baffle to perform opening and closing actions, so that all the slag outlets alternately switch between open and closed states, and only one of the slag outlets is in the open state at any given time.

[0005] In one feasible implementation, the limiting guide component includes a U-shaped frame, with guide rail grooves arranged opposite to each other on both sides of the U-shaped frame, and the U-shaped frame protruding from the upper surface of the grinder cover; The two guide rail grooves are respectively fixedly connected to the left and right sides of the corresponding slag outlet, and the groove openings of the two guide rail grooves are arranged opposite to each other; The baffle is a plate-shaped structure, with its left side embedded in the groove of the left guide rail and its right side embedded in the groove of the right guide rail. The baffle plate can slide vertically back and forth along the extension direction of the guide rail groove.

[0006] In one feasible implementation, the driving component is a pneumatic slide cylinder; The pneumatic slide cylinder is arranged vertically, and the cylinder body of the pneumatic slide cylinder is fixedly connected to the top surface of the grinder cover. The movable end of the pneumatic slide cylinder is arranged facing upwards, and the vertical side of the movable end of the slide is fixedly connected to the upper top of the baffle plate. The control unit includes a two-position five-way solenoid valve, which is connected to two air ports of each of the pneumatic slide cylinders via air pipes.

[0007] In one feasible implementation, the drive assembly includes a miniature lead screw slide module and a miniature motor; The miniature screw slide module is arranged vertically, and the module body of the miniature screw slide module is fixedly connected to the top surface of the grinder cover by an L-shaped mounting bracket. The micro motor is fixedly connected to the top of the micro lead screw slide module, and the output shaft of the micro motor is coaxially connected to the lead screw of the micro lead screw slide module. The sliding block of the miniature lead screw slide module is arranged vertically, and the side of the sliding block is fixedly connected to the top of the baffle plate. The control unit is electrically connected to the micro motor.

[0008] In one feasible implementation, the drive assembly includes a drive motor, a transmission gear, and a transmission rack; The transmission rack is fixedly connected vertically to the outer surface of the baffle plate; The drive motor is fixedly connected to the top surface of the pulper cover via a mounting plate; The transmission gear is coaxially and fixedly connected to the output shaft of the drive motor, and the teeth of the transmission gear mesh with the teeth of the transmission rack. The control unit is electrically connected to the drive motor.

[0009] In one feasible implementation, the limiting guide component includes a U-shaped frame and at least one combined page, wherein the upper surface of the U-shaped frame is flush with the upper surface of the pulper cover; One side of the hinge is fixedly connected to the upper surface of the pulper cover above the slag outlet, and the other side of the hinge is fixedly connected to the top edge of the baffle plate. The baffle is hinged to the top cover of the refiner via the hinge, and the baffle can rotate around the pivot of the hinge.

[0010] In one feasible implementation, the drive assembly includes a reciprocating motor, a linear guide rod, an external transmission crank, a motor mounting bracket, and a guide rail groove; The motor mounting bracket is fixedly connected to the upper surface of the pulper cover above the slag outlet; The reciprocating motor is fixedly connected to the motor mounting bracket in the horizontal direction, and the output end of the reciprocating motor faces the free end side of the baffle plate. The linear guide rod is arranged horizontally, and the guide rail groove is horizontally set on the side of the linear guide rod near the slag outlet. The linear guide rod is slidably connected to the guide rail groove so as to reciprocate along a straight line. One end of the linear guide rod is connected to the reciprocating output end of the reciprocating motor, and the other end of the linear guide rod is hinged to one end of the external transmission crank, and the other end of the external transmission crank is hinged to the free end of the baffle plate. The control unit is electrically connected to the reciprocating motor.

[0011] In one feasible implementation, the drive assembly includes a small linear cylinder and a crankshaft drive rod; The small linear cylinder is fixedly connected to the upper cover of the pulper in the horizontal direction, and the piston rod of the small linear cylinder faces the free end side of the baffle plate. One end of the crank drive rod is hinged to the end of the piston rod, and the other end of the crank drive rod is hinged to the free end of the baffle plate. The control unit includes a solenoid valve, which is connected to two air ports of each of the small linear cylinders via air pipes.

[0012] In one feasible implementation, a rechargeable battery assembly is also included; the rechargeable battery assembly is fixedly connected to the upper surface of the grinder cover, and the rechargeable battery assembly is electrically connected to each of the micro motors, drive motors or reciprocating motors respectively. The control unit integrates a wireless communication module, which is either a Bluetooth module or a WiFi module.

[0013] In one feasible implementation, the at least two slag outlets are arranged at an angle on the circumferential sidewall of the top cover of the pulper; The shielding plate is a straight flat plate structure or an arc-shaped plate structure that matches the curvature of the side wall of the top cover of the grinding machine.

[0014] This application provides a multi-stage slag outlet switching structure for a pulp refiner. By setting at least two slag outlets on the top cover of a single pulp refiner, and equipping each slag outlet with an independent baffle, limiting guide component, and drive component, combined with unified control of the control unit, the interlocking and alternating switching of multiple slag outlets can be achieved. This ensures that only one slag outlet is open at any given time, eliminating the need for manual sealing of the slag outlets and switching of receiving containers. Multiple automated pulping operations can be completed on a single pulp refiner, effectively reducing labor input and improving the continuity and efficiency of the pulping process. This structure achieves multiple grinding functions without the need for multiple pulp refiners, reducing the overall equipment procurement cost and the overall footprint of the equipment, making it suitable for space-constrained operating scenarios. Attached Figure Description

[0015] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the implementation of the invention and, together with the description, serve to explain the principles of the embodiments of the invention. It is obvious that the drawings described below are merely some embodiments of the invention, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of a multi-stage slag outlet switching structure for a pulper, as shown in an exemplary embodiment of this application. Figure 2 This is a schematic diagram illustrating a sliding fit structure for the multi-stage slag outlet switching structure of a pulper, as shown in an exemplary embodiment of this application. Figure 3 This is a schematic diagram illustrating a sliding fit structure for a multi-stage slag outlet switching structure of a pulper, as shown in another exemplary embodiment of this application. Figure 4 for Figure 3 A diagram from another perspective; Figure 5 This is a schematic diagram of a sliding fit structure for a multi-stage slag outlet switching structure of a pulper, which is shown in yet another exemplary embodiment of this application. Figure 6 This is a schematic diagram illustrating a hinged joint structure of a multi-stage slag outlet switching structure for a pulper, as shown in an exemplary embodiment of this application. Figure 7 This is a schematic diagram illustrating a hinged joint structure for a multi-stage slag outlet switching structure of a pulper, which is shown as another exemplary embodiment of this application.

[0017] Attached image captions: 1-Pulping machine top cover; 2-Slag outlet; 3-Baffle plate; 4-Limiting and guiding assembly; 5-Drive assembly; 6-Rechargeable battery assembly; 41-Guide rail groove; Hinge-42; 51-Pneumatic slide cylinder; 521-Miniature ball screw slide module; 522-Miniature motor; 523-Type mounting bracket; 531-Drive motor; 532-Transmission gear; 533-Transmission rack; 534-Mounting plate; 541-Reciprocating motor; 542-Linear guide rod; 543-External transmission crank; 544-Motor mounting bracket; 545-Guide rail groove; 551-Small linear cylinder; 552-Crank transmission rod; 553-Piston rod. Detailed Implementation

[0018] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that the embodiments of the invention will be more comprehensive and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a full understanding of how embodiments of the invention are carried out.

[0019] Commercially available conventional grinders typically have only a single discharge port. With this fixed position, the corresponding position of the soybean residue mixing tank or receiving bag is also relatively fixed. Under this single-discharge structure, a single grinder cannot automatically complete multiple grinding processes. If a second or third round of fine grinding is required, manual transfer of the soybean residue and manual switching of the receiving container are necessary. This process is cumbersome, labor-intensive, and has low automation, making it unsuitable for continuous soybean product processing. Adding a second or third grinder to handle different grinding rounds would significantly increase equipment procurement costs and the overall footprint, making it unsuitable for space-constrained environments such as canteen kitchens.

[0020] To address the aforementioned technical problems, this embodiment provides a multi-stage slag outlet switching structure for a pulp refiner. By setting multiple slag outlets on a single pulp refiner and configuring an automatic switching structure, a single pulp refiner can complete multiple automated pulping operations, while simultaneously controlling equipment costs and reducing floor space. The multi-stage slag outlet switching structure for the pulp refiner in this embodiment is described below. Figure 1 As shown, it includes a pulper cover 1, at least two slag outlets 2, a baffle plate 3, a limit guide assembly 4, a drive assembly 5, and a control unit.

[0021] The upper cover 1 of the pulp mill is the upper closed component of the grinding chamber of the pulp mill, which forms the outer contour of the upper part of the pulp mill and the upper boundary of the internal chamber. On the one hand, it is used to support various functional components related to the slag outlet switching, and to provide installation benchmarks and support for each component; on the other hand, it is used to seal the internal grinding chamber of the pulp mill to prevent materials from splashing out of the chamber during the grinding process, while maintaining a stable grinding environment inside the chamber.

[0022] At least two discharge ports 2 are formed through the circumferential sidewall of the grinder cover 1. Each discharge port 2 connects the internal grinding chamber of the grinder to the external space, allowing the soybean residue generated during the grinding process to be discharged directionally from inside the chamber. In one embodiment, the number of discharge ports 2 can be set to two, corresponding to the first coarse grinding and the second fine grinding processes respectively; in another embodiment, the number of discharge ports 2 can also be set to three, corresponding to three progressively finer grinding processes, which can be flexibly adjusted according to the actual production requirements for the fineness of the soybean milk. Optionally, the opening size of each discharge port 2 can be set to be completely identical, so that the discharge efficiency of each discharge port 2 remains uniform, facilitating the matching of process parameters and process connection for different grinding passes. It is understood that the discharge ports 2 are formed through the circumferential sidewall of the grinder cover 1, which can make full use of the circumferential space layout of the grinder cover, avoid additional axial height of the equipment, further control the overall volume of the equipment, and adapt to the installation requirements of narrow spaces.

[0023] The baffle plate 3 includes baffle plates 3 corresponding one-to-one with the number of slag outlets 2. Each baffle plate 3 is arranged on the outside of a corresponding slag outlet 2 to control the opening and closing of the corresponding slag outlet 2. When the baffle plate 3 moves away from the outer position of the slag outlet 2, the slag outlet 2 is in the open state, and the soybean residue produced by grinding can be discharged normally from the slag outlet 2 to the external receiving container; when the baffle plate 3 moves to a position that is completely aligned with the opening of the slag outlet 2, the slag outlet 2 is in the closed state, and the soybean residue cannot be discharged from this slag outlet 2, but can only be discharged from other open slag outlets 2.

[0024] The limiting guide assembly 4 includes a one-to-one correspondence between the number of shield plates 3 and the number of shield plates 3. Each limiting guide assembly 4 is fixedly connected to the outer wall of the upper cover 1 of the refiner. Each shield plate 3 is connected to the corresponding limiting guide assembly 4 in a sliding or hinged manner. The limiting guide assembly 4 is used to constrain the movement trajectory of the shield plate 3, limiting the movement direction and range of the shield plate 3, preventing the shield plate 3 from shifting or misaligning during opening and closing, and ensuring that the shield plate 3 can accurately align with the opening of the slag outlet 2 to achieve a reliable sealing effect.

[0025] Optionally, when the limiting guide component 4 and the baffle plate 3 are connected in a sliding fit, the baffle plate 3 can reciprocate linearly along the limiting guide component 4, thereby opening and closing the slag outlet 2 through linear displacement; when the limiting guide component 4 and the baffle plate 3 are connected in a hinged fit, the baffle plate 3 can rotate along the hinge axis, thereby opening and closing the slag outlet 2 through changes in the rotation angle; both fit methods can achieve stable opening and closing of the slag outlet, and can be flexibly selected according to the actual installation space, processing conditions and usage requirements.

[0026] The drive assembly 5 includes drive components 5 corresponding one-to-one with the number of baffles 3. Each drive assembly 5 is fixedly connected to the top surface or outer wall of the refiner cover 1, and the movable end of each drive assembly 5 is connected to the corresponding baffle 3 in a transmission manner. The drive assembly 5 provides the power source for the opening and closing movement of the baffles 3. Through the reciprocating motion of its own movable end, it drives the corresponding baffle 3 to move along the trajectory defined by the limiting guide assembly 4, thereby realizing the opening and closing switching of the slag outlet 2.

[0027] In one embodiment, the drive assembly 5 can be fixed to the top surface of the grinder cover 1, utilizing the flat space of the top surface for installation and layout, thus avoiding the occupation of the circumferential slag discharge operation space. It is understood that the drive assembly 5 and the baffle plate 3 are set up in a one-to-one correspondence, so that the opening and closing of each slag discharge port 2 can be controlled independently, which facilitates the alternating switching and interlocking control of different slag discharge ports.

[0028] The control unit is connected to each drive component 5. The control unit is configured to control each drive component 5 to open and close the corresponding baffle 3, causing all slag outlets 2 to alternately switch between open and closed states, with only one slag outlet 2 open at any given time. As the control core of the overall switching structure, the control unit outputs control signals to each drive component 5, coordinating the timing of their actions to achieve interlocked alternating switching of multiple slag outlets. By maintaining only one slag outlet open at any given time, it ensures that slag from different grinding cycles is discharged from its corresponding outlet, preventing mixing of slag from different cycles and ensuring the orderly and accurate execution of the multiple grinding processes.

[0029] In one implementation, the control unit can be integrated into the overall control system of the refiner, and linked with the start-up, shutdown, feeding, and delivery processes of the refiner to further improve the automation level of the entire line. In another implementation, the control unit can also be set up independently to control the switching action of the slag outlet separately, adapting to different equipment modification scenarios.

[0030] The overall usage process of this embodiment is as follows: During the first grinding operation, the control unit outputs a control signal to the drive component corresponding to the first slag outlet, controlling the movable end of the drive component to move, driving the first baffle plate to move along the corresponding limiting guide component 4, so that the first slag outlet 2 is in a fully open state; at the same time, it controls the drive components 5 corresponding to the other slag outlets 2 to move, driving the corresponding baffle plates 3 to the closed position, so that the other slag outlets 2 are all in a fully closed state. After the grinder starts, the soybean residue produced in the first grinding is discharged from the opened first slag outlet 2 and falls into the corresponding first receiving container. After the first grinding is completed, the collected soybean residue is sent back into the grinder for a second grinding. The control unit outputs a switching control signal, controlling the drive component 5 corresponding to the first slag outlet 2 to move the baffle plate 3 to close the first slag outlet 2, and at the same time controlling the drive component 5 corresponding to the second slag outlet 2 to move the baffle plate 3 to open the second slag outlet 2. The soybean residue produced in the second grinding is discharged from the second slag outlet 2 and falls into the corresponding second receiving container. If three or more slag outlets are set, the slag outlets can be switched sequentially according to the same logic to complete the corresponding number of grinding processes.

[0031] Therefore, this embodiment achieves automatic alternating switching of multiple slag outlets on a single refiner by setting at least two slag outlets 2 on a single refiner and configuring corresponding baffles 3, limiting guide components 4, drive components 5, and control units. This eliminates the need for manual blocking or switching of slag outlets, enabling multiple automated refinement operations, effectively reducing labor costs and improving work efficiency. The multiple refinement function can be achieved without adding multiple refiners, effectively reducing equipment procurement costs and minimizing the overall footprint of the equipment, making it suitable for confined kitchen work environments. The limiting guide components 4 constrain the movement trajectory of the baffles 3, ensuring the accuracy of the opening and closing of the slag outlets 2 and the reliability of their closure, thus improving the stability and reliability of the equipment operation.

[0032] In some embodiments of this application, reference is made to Figures 2-5As shown, the limiting and guiding component 4 includes a U-shaped frame with guide rail grooves 41 arranged opposite to each other on both sides. The U-shaped frame protrudes from the upper surface of the grinder cover 1. The U-shaped frame serves as the overall support frame for the limiting and guiding component 4, supporting and fixing the guide rail grooves 41 on both sides, while limiting the relative distance and extension direction of the two guide rail grooves 41 to ensure the parallelism and positional accuracy of the guide rail grooves on both sides. The U-shaped frame protruding from the upper surface of the grinder cover 1 allows the vertical extension range of the guide rail grooves 41 to exceed the upper edge of the slag outlet 2, ensuring that when the baffle plate 3 slides upward to its highest position, it can completely remove the opening range of the slag outlet 2, avoiding obstruction of the slag discharge path and ensuring smooth discharge of soybean slag. Optionally, the vertical extension length of the U-shaped frame can be matched and set according to the lifting stroke of the baffle plate 3 to ensure that the baffle plate 3 is guided and constrained by the guide rail grooves 41 throughout the entire stroke range, avoiding the problem of detachment from the groove at the end of the stroke.

[0033] Two guide rail grooves 41 are fixedly connected to the left and right sides of the corresponding slag outlet 2, with the groove openings of the two guide rail grooves 41 facing each other. The guide rail grooves 41 extend vertically and are symmetrically distributed along the left and right sides of the slag outlet 2, with the groove openings facing the center of the slag outlet 2, forming a vertical guide channel. Setting the guide rail grooves 41 on the left and right sides of the slag outlet 2 can make full use of the side wall space on both sides of the slag outlet 2, without occupying the slag outlet space directly in front of the slag outlet 2, thus avoiding obstruction of the discharge path of the soybean residue. The guide rail grooves 41 can be fixedly connected to the outer wall of the upper cover 1 of the grinder by welding or screw fastening. The connection structure is stable and can withstand the lateral force and load from the impact of soybean residue during the movement of the baffle plate 3. The groove width of the two guide rail grooves 41 corresponds to the thickness of the baffle plate 3, leaving only a very small assembly gap, which ensures that the baffle plate 3 can slide smoothly along the groove body, and effectively limits the back-and-forth sway of the baffle plate 3, improving the stability of the movement.

[0034] The baffle plate 3 has a plate-like structure. The left side of the baffle plate 3 is embedded in the groove of the left guide rail 41, and the right side of the baffle plate 3 is embedded in the groove of the right guide rail 41. The left and right sides of the baffle plate 3 are respectively embedded in the corresponding guide rail grooves 41. The inner wall of the guide rail groove 41 provides double restriction for the baffle plate 3 in both the left-right and front-back directions, so that the baffle plate 3 can only move along the extension direction of the guide rail groove 41 and cannot produce left-right deviation or front-back swaying. This ensures that the movement plane of the baffle plate 3 always corresponds to the opening plane of the slag outlet 2, improving the alignment accuracy.

[0035] The baffle plate 3 can slide vertically back and forth along the extension direction of the guide rail groove 41. Through vertical back and forth sliding, the baffle plate 3 can switch positions up and down: when the baffle plate 3 slides down to the lowest position, the plate completely covers the opening area of ​​the slag outlet 2, thus closing the slag outlet 2; when the baffle plate 3 slides up to the highest position, the plate completely moves away from the opening area of ​​the slag outlet 2, thus opening the slag outlet 2. The vertical sliding opening and closing method has a compact structure, does not require additional operating space in front of the slag outlet, adapts to the circumferential spatial layout of the pulper, and is especially suitable for scenarios with multiple circumferentially distributed slag outlets.

[0036] The working process of this embodiment is as follows: When the corresponding slag outlet 2 needs to be opened, the drive component 5 outputs an upward driving force, which drives the baffle plate 3 to slide vertically upward along the guide rail groove 41 until the baffle plate 3 completely moves away from the opening area of ​​the slag outlet 2, and the slag outlet 2 is in a fully open state, and the soybean residue produced by grinding can be discharged normally from the opening; when the corresponding slag outlet 2 needs to be closed, the drive component 5 outputs a downward driving force, which drives the baffle plate 3 to slide vertically downward along the guide rail groove 41 until the plate body of the baffle plate 3 is completely aligned with the opening of the slag outlet 2, and the slag outlet 2 is in a fully closed state, and the soybean residue cannot be discharged from the opening.

[0037] Therefore, in this embodiment, the guide rail grooves 41 arranged symmetrically on the left and right sides are used to embed and guide the baffle plate 3, which effectively limits the left and right offset and back and forth sway of the baffle plate 3, ensures the trajectory accuracy of the vertical sliding of the baffle plate 3, improves the tightness of the slag outlet 2, and can effectively avoid the problem of slag leakage caused by the offset of the baffle plate 3; the setting of the U-shaped frame protruding from the surface of the grinding mill cover 1 ensures the lifting stroke of the baffle plate 3, so that the slag outlet 2 is unobstructed when it is opened, the slag discharge is smooth, and there is a guiding constraint throughout the stroke, so the operation is stable and reliable.

[0038] In some embodiments of this application, reference is made to Figure 2 As shown, the driving component 5 is a pneumatic slide cylinder 51, which is arranged vertically. The cylinder body of the pneumatic slide cylinder 51 is fixedly connected to the top surface of the refiner cover 1. The pneumatic slide cylinder 51 is a double-acting cylinder, which can achieve bidirectional reciprocating motion of the movable end through air path switching, providing stable power for the lifting and lowering of the baffle plate 3. The vertical arrangement of the pneumatic slide cylinder 51 on the top surface of the refiner cover 1 ensures that the extension and retraction direction of the cylinder is consistent with the sliding direction of the baffle plate 3, resulting in a direct transmission path, high transmission efficiency, and full utilization of the top space of the refiner cover 1 without occupying the circumferential slag discharge area. In one embodiment, the cylinder body of the pneumatic slide cylinder 51 can be fixedly connected to the top surface of the refiner cover 1 via an L-shaped connector, resulting in a simple and stable installation structure that facilitates disassembly and maintenance.

[0039] The movable end of the pneumatic slide cylinder 51 is arranged facing upwards, and its vertical side is fixedly connected to the top of the baffle plate 3. The movable end of the slide is the power output component of the pneumatic slide cylinder 51. Its upward arrangement allows it to directly transmit vertical extension force to the top of the baffle plate 3, driving the baffle plate 3 to rise and fall synchronously. Connecting the vertical side of the movable end of the slide to the top of the baffle plate 3 increases the contact area between the two, improving the connection's firmness and transmission stability. The connection position is set at the top of the baffle plate 3, ensuring that the cylinder still has sufficient clearance when the baffle plate 3 is lowered to its lowest closed position, avoiding motion interference.

[0040] The control unit includes a two-position five-way solenoid valve, which is connected to two air ports of each pneumatic slide cylinder 51 via air pipes. The two-position five-way solenoid valve acts as a switching and on / off component of the air path, controlling the on / off state and flow direction of the air path, thereby controlling the extension and retraction of the pneumatic slide cylinder 51. The two-position five-way solenoid valve allows for the interchange of the intake and exhaust functions of the two air ports, thus driving the movable end of the slide to complete bidirectional extension and retraction. In one embodiment, the two-position five-way solenoid valve can be connected to the equipment's built-in air source system, utilizing existing air pumps and air tanks to provide stable compressed air, eliminating the need for an additional air source and simplifying the system structure.

[0041] The working process of this embodiment is as follows: When it is necessary to open the slag outlet 2, the control unit outputs an energizing signal to the two-position five-way solenoid valve. The valve core inside the solenoid valve switches, the air path reverses, compressed air enters the lower air port of the pneumatic slide cylinder 51, the upper air port exhausts, the movable end of the slide extends upward, driving the baffle plate 3 to slide vertically upward along the guide rail groove 41, and the slag outlet 2 opens. When it is necessary to close the slag outlet 2, the control unit controls the solenoid valve to de-energize and reset, the air path reverses again, compressed air enters the upper air port of the pneumatic slide cylinder 51, the lower air port exhausts, the movable end of the slide retracts downward, driving the baffle plate 3 to slide vertically downward along the guide rail groove 41, and the slag outlet 2 closes. By switching the energization and de-energization of the solenoid valve, the reciprocating lifting and lowering of the baffle plate can be realized, completing the opening and closing switching of the slag outlet.

[0042] Therefore, this embodiment uses a pneumatic slide cylinder 51 as the driving component, which has good waterproof and moisture-proof performance, is suitable for the humid working environment of bean product processing, has a low failure rate, and a long service life; it can directly utilize the equipment's own air source system, without the need for additional power supply, the system structure is simple, and the cost is low; the two-position five-way solenoid valve controls the air circuit switching, with fast action response, high switching efficiency, and smooth slide transmission, which can ensure the stability and accuracy of the opening and closing of the baffle 3.

[0043] In some embodiments of this application, reference is made to Figure 3 and Figure 4As shown, the drive assembly 5 may include a miniature lead screw slide module 521 and a miniature motor 522. The miniature lead screw slide module 521 is arranged vertically, and its module body is fixedly connected to the top surface of the refiner cover 1 via an L-shaped mounting bracket 523. The miniature lead screw slide module 521 is a transmission and actuation component that can convert rotary motion into linear motion, achieving high-precision vertical reciprocating motion of the sliding block. The L-shaped mounting bracket 523 serves as a transition and fixing component, used to firmly install the miniature lead screw slide module 521 onto the top surface of the refiner cover 1, ensuring the vertical installation accuracy of the module.

[0044] A micro motor 522 is fixedly connected to the top of the micro lead screw slide module 521, and the output shaft of the micro motor 522 is coaxially connected to the lead screw of the micro lead screw slide module 521. The micro motor 522 is a power source used to output rotational power, which drives the lead screw to rotate synchronously through the coaxial connection, thereby driving the sliding block of the slide module to move vertically along the lead screw. Arranging the micro motor 522 at the top of the slide module ensures that the power input direction is consistent with the lead screw axis, resulting in low transmission loss, and the top layout avoids the motor occupying the slag discharge space below. In one embodiment, the micro motor 522 can be fixedly connected to the end cover of the slide module through a flange to ensure the coaxiality of the motor output shaft and the lead screw, improve transmission smoothness, and reduce operating noise and wear.

[0045] The sliding block of the miniature lead screw slide module 521 is vertically arranged, and its side is fixedly connected to the top of the baffle plate 3. The sliding block is the power output end of the slide module. Its downward arrangement allows it to directly transmit vertical linear power to the top of the baffle plate 3, driving the baffle plate 3 to rise and fall synchronously. The bottom surface of the sliding block is in close contact with the top surface of the baffle plate 3, resulting in a large contact area and uniform force distribution. This ensures the horizontality of the baffle plate during its rise and fall, preventing tilting and jamming.

[0046] The control unit is electrically connected to the micro motor 522 and is used to output control signals to the micro motor 522 to control the start, stop, direction and rotation of the motor, thereby precisely controlling the lifting direction and lifting stroke of the sliding block, and realizing precise control of the opening and closing position of the baffle.

[0047] The working process of this embodiment is as follows: When it is necessary to open the slag outlet 2, the control unit controls the micro motor 522 to rotate in the forward direction, which drives the lead screw of the micro lead screw slide module 521 to rotate synchronously, driving the sliding block to move vertically upward, and then driving the baffle plate 3 to slide upward along the guide rail groove 41 until the preset opening height is reached, and the slag outlet 2 is fully opened; when it is necessary to close the slag outlet 2, the control unit controls the micro motor 522 to rotate in the reverse direction, which drives the sliding block to move vertically downward, driving the baffle plate 3 to slide downward along the guide rail groove 41 until the preset closing position is reached, and the slag outlet 2 is fully closed.

[0048] In some embodiments of this application, reference is made to Figure 5 As shown, the drive assembly 5 may include a drive motor 531, a transmission gear 532, and a transmission rack 533. The transmission rack 533 is vertically fixedly connected to the outer surface of the baffle plate 3, with the teeth of the transmission rack 533 facing outwards, for cooperating with the gear to transmit power and drive the baffle plate 3 to rise and fall synchronously. In one embodiment, the transmission rack 533 and the baffle plate 3 may be fixedly connected by welding or screw fastening, resulting in high connection strength and the ability to withstand large transmission forces.

[0049] The drive motor 531 is fixedly connected to the top surface of the refiner cover 1 via a mounting plate 534. The mounting plate 534 serves as a lifting support component, elevating the drive motor 531 to a certain height. By raising the motor's mounting position, the transmission rack 533 can operate entirely outside the refiner cavity, preventing the rack from interfering with the refining operation by extending into the cavity. Simultaneously, it ensures sufficient lifting stroke for the rack to fully open and close the shielding plate 3. In one embodiment, the mounting plate 534 can be a vertical plate structure, with its vertical height matching the height of the shielding plate 3 to ensure the accuracy of the motor's raised position.

[0050] The transmission gear 532 is coaxially and fixedly connected to the output shaft of the drive motor 531, and the teeth of the transmission gear 532 mesh with the teeth of the transmission rack 533. The transmission gear 532 rotates synchronously with the output shaft of the motor, and through the meshing of the teeth, the rotational power of the motor is converted into the vertical linear power of the transmission rack 533, which in turn drives the baffle plate 3 to move up and down along the guide rail groove 41. The gear and rack meshing transmission has a large contact area, uniform power transmission, smooth operation, and can withstand the reverse load caused by the impact of soybean residue.

[0051] The control unit is electrically connected to the drive motor 531 and is used to control the start, stop and forward / reverse rotation of the drive motor 531, thereby controlling the lifting direction and stroke of the transmission rack 533 to realize the opening and closing switching of the slag outlet.

[0052] The working process of this embodiment is as follows: When it is necessary to open the slag outlet 2, the control unit controls the drive motor 531 to rotate in the forward direction, which drives the transmission gear 532 to rotate synchronously. Through meshing, the transmission rack 533 is driven to move vertically upward, which in turn drives the baffle plate 3 to slide upward along the guide rail groove 41, and the slag outlet 2 is opened; when it is necessary to close the slag outlet 2, the control unit controls the drive motor 531 to rotate in the reverse direction, which drives the transmission rack 533 to move vertically downward, which drives the baffle plate 3 to slide downward along the guide rail groove 41, and the slag outlet 2 is closed.

[0053] In some embodiments of this application, reference is made to Figure 6 and Figure 7As shown, the limiting guide assembly 4 includes a U-shaped frame and at least one hinge 42. The upper surface of the U-shaped frame is flush with the upper surface of the refiner cover 1. The U-shaped frame forms the outer frame of the slag outlet 2, defining the opening range of the slag outlet and providing a fitting reference for the closure of the baffle plate 3. The upper surface of the U-shaped frame is flush with the upper surface of the refiner cover 1, so it does not protrude additionally and increase the height of the equipment, ensuring the installation and movement of the hinge 42.

[0054] One side of hinge 42 is fixedly connected to the upper surface of the refiner cover 1 above the slag outlet 2, and the other side of hinge 42 is fixedly connected to the top edge of the baffle plate 3. Hinge 42 is a hinged connector, forming the pivot reference for the rotation of the baffle plate 3, hinged the top of the baffle plate 3 to the refiner cover 1 as a single unit, allowing the baffle plate 3 to rotate only around the pivot of hinge 42, restricting displacement in other directions. In one embodiment, the number of hinges 42 can be set to two sets, respectively arranged on the left and right sides of the top of the baffle plate 3, ensuring uniform force and stability during the rotation of the baffle plate 3.

[0055] The baffle plate 3 is hinged to the upper cover 1 of the refiner via a hinge 42, and the baffle plate 3 can rotate around the pivot of the hinge 42. Through the rotational movement around the pivot, the baffle plate 3 can switch between opening and closing the slag outlet 2: when the baffle plate 3 is rotated downward to a vertical position, the plate body fits against the U-shaped frame, completely covering the opening of the slag outlet 2, thus closing the slag outlet; when the baffle plate 3 is rotated upward to a horizontal position, the plate body completely moves away from the front of the slag outlet 2, thus opening the slag outlet. The flip-type opening and closing does not require the vertical space above the slag outlet, only the front flipping space, adapting to different spatial layout requirements.

[0056] The working process of this embodiment is as follows: When it is necessary to open the slag outlet 2, the drive component 5 outputs a pulling force, which drives the free end of the baffle plate 3 to rotate upward around the hinge 42 until the baffle plate 3 completely leaves the opening area of ​​the slag outlet 2, and the slag outlet 2 is in the open state; when it is necessary to close the slag outlet 2, the drive component 5 outputs a pushing force, which drives the free end of the baffle plate 3 to rotate downward around the hinge 42 until the baffle plate 3 and the opening of the slag outlet 2 are completely aligned and fitted together, and the slag outlet 2 is in the closed state.

[0057] In some embodiments of this application, reference is made to Figure 6 As shown, the drive assembly 5 may include a reciprocating motor 541, a linear guide rod 542, an external transmission crank 543, a motor mounting bracket 544, and a guide rail groove 545. The motor mounting bracket 544 is fixedly connected to the upper surface of the mill cover 1 above the slag outlet 2, and is used to provide mounting support and a fixing reference for the reciprocating motor 541.

[0058] The reciprocating motor 541 is fixedly connected to the motor mounting bracket 544 in the horizontal direction, with the output end of the reciprocating motor 541 facing the free end of the baffle plate 3. The reciprocating motor 541 is a power source that can output reciprocating extension and retraction power in the horizontal direction. The horizontal arrangement can make full use of the space above the slag outlet 2 without occupying vertical space, and is compatible with the transmission layout of the flip-type baffle plate.

[0059] The linear guide rod 542 is arranged in a horizontal direction, and the guide rail groove 545 is horizontally set on the side of the linear guide rod 542 near the slag outlet 2. The linear guide rod 542 is slidably connected to the guide rail groove 545. The guide rail groove 545 can ensure that the linear guide rod 542 reciprocates along a straight line and prevent the linear guide rod 542 from deviating from its movement trajectory.

[0060] One end of the linear guide rod 542 is connected to the reciprocating output end of the reciprocating motor 541. The linear guide rod 542 is the transmission component for reciprocating power, moving horizontally back and forth with the output end of the reciprocating motor 541, transmitting the motor's power forward. The rod-shaped structure of the linear guide rod 542 provides good guidance, low resistance during movement, and smooth operation. In one embodiment, the reciprocating motor 541 may be internally configured with an eccentric wheel and a built-in crank structure, converting the motor's rotational motion into the horizontal reciprocating motion of the linear guide rod 542, resulting in a compact transmission structure and reliable operation.

[0061] The other end of the linear guide rod 542 is hinged to one end of the external transmission crank 543, and the other end of the external transmission crank 543 is hinged to the free end of the baffle plate 3. The external transmission crank 543 is a transmission transition component. Through the hinged structure at both ends, the horizontal reciprocating motion of the linear guide rod 542 is converted into the flipping motion of the free end of the baffle plate 3, thereby realizing the conversion of the power direction. The hinged structure at both ends can adapt to the angle changes during the motion process, avoid motion interference, and ensure smooth transmission.

[0062] The control unit is electrically connected to the reciprocating motor 541 and is used to control the start, stop and reciprocating stroke of the reciprocating motor 541, thereby controlling the flip angle and opening / closing state of the baffle 3.

[0063] The working process of this embodiment is as follows: When it is necessary to open the slag outlet 2, the control unit controls the reciprocating motor 541 to retract backward, driving the linear guide rod 542 to move horizontally backward, and pulling the free end of the baffle plate 3 upward through the external transmission crank 543, thus opening the slag outlet 2; when it is necessary to close the slag outlet 2, the control unit controls the reciprocating motor 541 to extend forward, driving the linear guide rod 542 to move horizontally forward, and pushing the free end of the baffle plate 3 downward through the external transmission crank 543, thus closing the slag outlet 2.

[0064] In some embodiments of this application, reference is made to Figure 7As shown, the drive assembly 5 may include a small linear cylinder 551 and a crank transmission rod 552. The small linear cylinder 551 is fixedly connected to the upper cover 1 of the refiner in a horizontal direction, with the piston rod 553 of the small linear cylinder 551 facing the free end of the baffle plate 3. The small linear cylinder 551 is a pneumatic power component, and the horizontal reciprocating extension and retraction of the piston rod 553 can be controlled by the air circuit to output a stable push and pull force. The horizontally arranged cylinder can make full use of the side wall space above the slag outlet, and the transmission direction matches the force direction of the crank transmission rod, resulting in high transmission efficiency. In some embodiments, a pneumatic slide cylinder 51 can also be used in conjunction with the crank transmission rod 552 for more stable transmission.

[0065] One end of the crank drive rod 552 is hinged to the end of the piston rod 553, and the other end of the crank drive rod 552 is hinged to the free end of the baffle plate 3. The crank drive rod 552 is a transmission transition component. Through the hinge structure at both ends, the horizontal linear motion of the piston rod 553 is converted into the flipping motion of the free end of the baffle plate 3, realizing the conversion of the power direction. The hinge structure can adapt to the angle changes during the movement, avoid movement jamming, and ensure smooth opening and closing actions.

[0066] The control unit includes solenoid valves, which are connected to two air ports of each small linear cylinder 551 via air pipes. The solenoid valves control the opening and closing of the air path and its flow direction, thereby controlling the extension and retraction direction of the piston rod 553 and switching the opening and closing states of the baffle. In one embodiment, the solenoid valves can be connected to the equipment's built-in air supply system, utilizing existing air pumps and air tanks to provide a stable air source, eliminating the need for an additional power system.

[0067] The working process of this embodiment is as follows: When it is necessary to open the slag outlet 2, the control unit controls the solenoid valve to reverse, causing the piston rod 553 of the small linear cylinder 551 to retract backward, and pulling the free end of the baffle plate 3 to rotate upward around the hinge 42 through the crank transmission rod 552, thus opening the slag outlet 2; when it is necessary to close the slag outlet 2, the control unit controls the solenoid valve to reverse again, causing the piston rod 553 to extend forward, and pushing the free end of the baffle plate 3 to rotate downward through the crank transmission rod 552, thus closing the slag outlet 2.

[0068] Therefore, this embodiment adopts a pneumatic drive structure with a small linear cylinder and a crank transmission rod, which has excellent waterproof and moisture-proof performance, is suitable for the humid working environment of bean product processing, and has a low failure rate; it can directly utilize the equipment's own air source system without the need to lay additional power lines, the system structure is simple, and the modification cost is low; the cylinder output thrust is stable, which can ensure the sealing force when the baffle is closed, improve the sealing tightness, and effectively avoid the problem of residue leakage.

[0069] In some embodiments of this application, the multi-discharge switching structure of the pulper further includes a rechargeable battery assembly 6. The rechargeable battery assembly 6 is fixedly connected to the upper surface of the pulper cover 1 and is electrically connected to each micro motor 522, drive motor 531, and reciprocating motor 541. The rechargeable battery assembly 6 is an independent power supply component, providing operating power to the micro motors 522 without requiring external mains power lines, resulting in simple wiring and convenient equipment movement. Placing the rechargeable battery assembly 6 on the upper surface of the pulper cover 1 facilitates subsequent charging operations and maintenance replacements without occupying internal space. In one embodiment, the rechargeable battery assembly 6 can be equipped with a waterproof cover to improve safety and service life in humid environments.

[0070] The control unit integrates a wireless communication module, which can be either a Bluetooth module or a WiFi module. Through this module, the control unit can wirelessly interface with the control system of the entire equipment, eliminating the need for control wiring, simplifying cabling, and facilitating equipment modification, installation, and debugging. In one implementation, a Bluetooth module provides a stable, short-range wireless connection with low power consumption, suitable for short-range equipment linkage; a WiFi module enables longer-range wireless control, suitable for plant-wide equipment networking scenarios, allowing for flexible selection based on actual usage requirements.

[0071] This embodiment achieves independent power supply by configuring a rechargeable battery component 6, freeing it from the constraints of an external power cord. The overall wiring is simple, the equipment is easy to move, and it can be adapted to work scenarios without an external power supply. The integrated wireless communication module enables wireless linkage control with the whole system, eliminating the need to lay control lines, making installation and modification convenient, and further improving the automation level and ease of use of the equipment.

[0072] In some embodiments of this application, at least two slag outlets 2 are arranged at an angle on the circumferential sidewall of the grinder cover 1. For example, the angle between the axes of two adjacent slag outlets 2 is 90 degrees. This 90-degree circumferential arrangement ensures that the slag outlets are evenly distributed around the circumference of the grinder cover, allowing corresponding receiving containers to be arranged on different sides of the equipment. This provides ample operating space and facilitates the transfer and receiving of soybean slag. Simultaneously, the 90-degree angled layout fully utilizes the circumferential space of the grinder without increasing the overall radial dimension of the equipment, effectively controlling the equipment's footprint. It is understood that when three slag outlets are provided, the angle between adjacent slag outlets can be adjusted according to actual space requirements to ensure a compact and reasonable layout.

[0073] The baffle plate 3 can be a straight flat plate structure or an arc-shaped plate structure that matches the curvature of the side wall of the refiner cover 1. The straight flat plate structure of the baffle plate 3 has a simple processing technology, low manufacturing cost, and is easy to install and debug; the arc-shaped plate structure of the baffle plate can perfectly fit the arc-shaped side wall of the refiner cover 1, providing better sealing. The two structural forms can be flexibly selected according to actual needs, improving the adaptability of the structure.

[0074] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the disclosure in the specification and the embodiments. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein.

Claims

1. A multi-stage slag outlet switching structure for a pulper, characterized in that, It includes a pulper cover (1), at least two slag outlets (2), a baffle (3), a limit guide assembly (4), a drive assembly (5), a rechargeable battery assembly (6), and a control unit; The at least two slag outlets (2) are opened through the circumferential sidewall of the upper cover (1) of the pulper; The number of the baffles (3) corresponds one-to-one with the number of the slag outlets (2), and each baffle (3) is arranged on the outside of one of the slag outlets (2); The number of the limiting guide components (4) corresponds one-to-one with the number of the baffles (3). Each limiting guide component (4) is fixedly connected to the outer side wall of the upper cover (1) of the pulper. Each baffle (3) is connected to the corresponding limiting guide component (4). The connection is a sliding fit or a hinged fit. The number of the drive components (5) corresponds one-to-one with the number of the baffles (3). Each drive component (5) is fixedly connected to the top surface or outer side wall of the grinding machine cover (1). The movable end of each drive component (5) is connected to the corresponding baffle (3) in a transmission manner. The control unit is connected to each of the drive components (5) respectively. The control unit is configured to control each of the drive components (5) to drive the corresponding baffle to perform opening and closing actions, so that all the slag outlets alternately switch between open and closed states, and only one of the slag outlets is in the open state at any given time.

2. The multi-stage slag outlet switching structure for the pulper according to claim 1, characterized in that, The limiting guide component (4) includes a U-shaped frame, and guide rail grooves (41) are arranged oppositely on both sides of the U-shaped frame. The U-shaped frame protrudes from the upper surface of the grinding machine cover (1). The two guide rail grooves (6) are respectively fixedly connected to the left and right sides of the corresponding slag outlet (2), and the groove openings of the two guide rail grooves (6) are arranged opposite to each other; The shielding plate (3) is a plate-shaped structure. The left side of the shielding plate (3) is embedded in the groove of the left guide rail groove (6), and the right side of the shielding plate (3) is embedded in the groove of the right guide rail groove (6). The shield (3) can slide vertically back and forth along the extension direction of the guide rail groove (6).

3. The multi-stage slag outlet switching structure for the pulper according to claim 2, characterized in that, The drive component (5) is a pneumatic slide cylinder (51); The pneumatic slide cylinder (51) is arranged vertically, and the cylinder body of the pneumatic slide cylinder (51) is fixedly connected to the top surface of the upper cover (1) of the pulper. The movable end of the pneumatic slide cylinder (51) is arranged facing upwards, and the vertical side of the movable end of the slide is fixedly connected to the upper part of the top of the baffle plate (3). The control unit includes a two-position five-way solenoid valve, which is connected to two air ports of each of the pneumatic slide cylinders (51) via air pipes.

4. The multi-stage slag outlet switching structure for the pulper according to claim 2, characterized in that, The drive assembly (5) includes a micro screw slide module (521) and a micro motor (522). The micro screw slide module (521) is arranged vertically, and the module body of the micro screw slide module (521) is fixedly connected to the top surface of the pulper cover (1) by an L-shaped mounting bracket (523). The micro motor (522) is fixedly connected to the top of the micro lead screw slide module (521), and the output shaft of the micro motor (522) is coaxially connected to the lead screw of the micro lead screw slide module (521). The sliding block of the micro screw slide module (521) is arranged vertically, and the side of the sliding block is fixedly connected to the top of the baffle plate (3). The control unit is electrically connected to the micro motor (522).

5. The multi-stage slag outlet switching structure for the pulper according to claim 2, characterized in that, The drive assembly (5) includes a drive motor (531), a transmission gear (532), and a transmission rack (533). The transmission rack (533) is fixedly connected vertically to the outer surface of the baffle plate (3); The drive motor (531) is fixedly connected to the top surface of the grinding machine cover (1) via a mounting plate (534); The transmission gear (532) is coaxially fixedly connected to the output shaft of the drive motor (531), and the teeth of the transmission gear (532) mesh with the teeth of the transmission rack (533). The control unit is electrically connected to the drive motor (531).

6. The multi-stage slag outlet switching structure for the pulper according to claim 1, characterized in that, The limiting guide component (4) includes a U-shaped frame and at least one assembly page (42), the upper surface of the U-shaped frame being flush with the upper surface of the pulper cover (1); One side of the hinge (42) is fixedly connected to the upper surface of the mill cover (1) above the slag outlet (2), and the other side of the hinge (42) is fixedly connected to the top edge of the baffle plate (3). The shield (3) is hinged to the upper cover (1) of the pulper via the hinge (42), and the shield (3) can rotate around the pivot of the hinge (42).

7. The multi-stage slag outlet switching structure for a pulper according to claim 6, characterized in that, The drive assembly (5) includes a reciprocating motor (541), a linear guide rod (542), an external transmission crank (543), a motor mounting bracket (544), and a guide rail groove (545). The motor mounting bracket (544) is fixedly connected to the upper surface of the pulper cover (1) above the slag outlet (2); The reciprocating motor (541) is fixedly connected to the motor mounting bracket (544) in the horizontal direction, and the output end of the reciprocating motor (541) faces the free end side of the shield (3). The linear guide rod (542) is arranged in a horizontal direction, and the guide rail groove (545) is horizontally arranged on the side of the linear guide rod (542) near the slag outlet (2). The linear guide rod (542) and the guide rail groove (545) are slidably connected to each other so as to reciprocate along a straight line. One end of the linear guide rod (542) is connected to the reciprocating output end of the reciprocating motor (541), and the other end of the linear guide rod (542) is hinged to one end of the external transmission crank (543). The other end of the external transmission crank (543) is hinged to the free end of the baffle plate (3). The control unit is electrically connected to the reciprocating motor (541).

8. The multi-stage slag outlet switching structure for a pulper according to claim 6, characterized in that, The drive assembly (5) includes a small linear cylinder (551) and a crankshaft (552). The small linear cylinder (551) is fixedly connected to the upper cover (1) of the pulper in the horizontal direction, and the piston rod (553) of the small linear cylinder (551) faces the free end of the baffle plate (3). One end of the crank drive rod (552) is hinged to the end of the piston rod (553), and the other end of the crank drive rod (552) is hinged to the free end of the baffle plate (3). The control unit includes a solenoid valve, which is connected to two air ports of each of the small linear cylinders (551) via air pipes.

9. The multi-stage slag outlet switching structure for a pulper according to claim 4, 5, or 7, characterized in that, It also includes a rechargeable battery assembly (6); the rechargeable battery assembly (6) is fixedly connected to the upper surface of the pulper cover (1), and the rechargeable battery assembly (6) is electrically connected to each of the micro motors (522), drive motors (531) or reciprocating motors (541); The control unit integrates a wireless communication module, which is either a Bluetooth module or a WiFi module.

10. The multi-stage slag outlet switching structure for the pulper according to claim 1, Its characteristics are: The at least two slag outlets (2) are arranged at an angle on the circumferential sidewall of the upper cover (1) of the pulper; The shield (3) is a straight flat plate structure or an arc plate structure that matches the curvature of the side wall of the grinding machine cover (1).

Images