Crusher for feed processing and control method thereof

Abstract

The invention relates to the technical field of feed crushing and processing, and discloses a crusher for feed processing, which comprises a processing box, and a material containing cavity, a crushing cavity and a screening cavity are arranged in the processing box; the feeding assembly is arranged in the material containing cavity and used for conveying the feed raw materials in the material containing cavity into the crushing cavity; the crushing assembly is arranged at the communication part of the crushing cavity and the screening cavity and is used for crushing the feed raw materials; the screening assembly is arranged in the screening cavity and used for screening and classifying the processed feed according to different particle sizes and conveying the processed feed to different feed outlets; feed of different particle sizes can be screened and classified through the screening assembly arranged in the screening cavity, small particle feed generated in the feed raw material processing process of the crusher can be screened and removed, dust is not prone to being generated in the transporting or feeding process, and the health of workers or animals is not affected; the feed is beneficial to digestion of digestive systems of chickens, ducks and geese in the chicken, duck and goose feeding process.

Description

Technical Field

[0001] The invention relates to the technical field of feed crushing and processing, and in particular to a crusher for feed processing and a control method thereof. Background Art

[0002] Feed is a general term for food for animals raised by all people. In a narrower sense, feed mainly refers to food for animals raised in agriculture or animal husbandry. Feed includes more than ten varieties of feed raw materials such as soybeans, soybean meal, corn, fish meal, amino acids, miscellaneous meal, whey powder, oils, meat and bone meal, grains, feed additives, etc. When processing and producing feed, it is often necessary to use a crusher to crush the raw materials for easy absorption and digestion by animals.

[0003] In the prior art, in the process of crushing feed raw materials by a crusher, the size of the crushed feed particles is mostly screened through a single-layer filter screen, and the feed with too large particles is repeatedly crushed, and the particles with a size less than or equal to the standard size of the feed particles will pass through the filter screen and be discharged as finished feed. Although this crushing and processing process for producing feed can achieve the purpose of effectively crushing the feed raw materials, some powdered feed with too small particles will appear in the processed feed. This powdered feed is mixed in the finished feed, which is more likely to generate dust during transportation or feeding of animals, affecting the health of workers or animals, and, for example, in the feeding process of chickens, ducks and geese, the powdered feed Incomplete feed will reduce the feeding efficiency of chickens, ducks and geese. Feed particles that are too small may cause them to swallow too quickly, without sufficient time for saliva to moisten and soften them. Feed particles that are too small may reduce the secretion of digestive juices in the mouth and stomach, thereby increasing the burden on the digestive system and affecting the health of chickens, ducks and geese. In addition, the crushing roller in the crusher will adhere to a certain amount of feed residue during long-term operation, resulting in a smaller gap between the crushing teeth of the crushing roller, hindering the effective contact and impact of the crushing teeth on the feed particles. This may lead to an increase in the proportion of powdered feed in the finished feed produced by the crusher, which in turn leads to a decrease in the quality of the finished feed produced by the crusher and an increase in production costs. Summary of the invention

[0004] The object of the present invention is to provide a feed processing crusher and a control method thereof, so as to solve the problem of how to screen and remove small particles of feed generated during the crusher processing feed raw materials:

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A crusher for feed processing, comprising:

[0007] A processing box, wherein the processing box is provided with a material holding chamber, a crushing chamber and a screening chamber;

[0008] A feeding assembly is arranged in the feeding chamber and is used to transport the feed raw materials in the feeding chamber to the crushing chamber;

[0009] A crushing assembly is provided at the connection point between the crushing chamber and the screening chamber, and is used for crushing the feed raw materials;

[0010] A screening component is arranged in the screening chamber and is used to screen and classify the processed feed according to different particle sizes and transport them to different feed outlets;

[0011] The cleaning components are arranged on both sides of the crushing component and are used for cleaning the residual feed attached to the crushing component.

[0012] Furthermore, the feeding assembly includes a feeding barrel, the top end of which is connected to the crushing chamber, a spiral lifting rod is rotatably connected inside the feeding barrel, a feeding motor is fixedly connected to the processing box, and an output end of the feeding motor is fixedly connected to the spiral lifting rod.

[0013] Furthermore, the crushing assembly includes two crushing rollers, one of which is rotatably connected in the processing box, and the other crushing roller is rotatably connected to the adjustment mechanism, the two crushing rollers cooperate with each other, and the adjustment mechanism is used to adjust the distance between the two crushing rollers;

[0014] The adjustment mechanism includes two L-shaped support plates, the two L-shaped support plates are respectively slidably connected to the side walls of the processing box, and the two ends of the other crushing roller are respectively rotatably connected to the two L-shaped support plates. The side walls of the processing box are symmetrically fixed with fixed plates, and the fixed plates are threadedly connected with threaded rods. One end of the threaded rod is rotatably connected to the L-shaped support plate. The side walls of the processing box are symmetrically slidably connected with pitch-adjusting motors, and the output end of the pitch-adjusting motor is fixedly connected to the other end of the threaded rod.

[0015] Sliding windows are symmetrically provided on the side walls on both sides of the processing box, and the two L-shaped support plates are respectively slidably connected in the corresponding sliding windows. Both ends of the two L-shaped support plates are fixedly connected with sliding baffles, and the sliding baffles are embedded and slidably connected in the side walls on both sides of the processing box.

[0016] Furthermore, the cleaning assembly includes two electric slides, one of which is fixedly connected in the processing box and is located on one side of the crushing roller, and the other electric slide is fixedly connected at both ends to two L-shaped support plates and is located on one side of the other crushing roller, and a slider is installed on the electric slide, and a cleaning tooth is fixedly connected to the slider;

[0017] A plurality of crushing teeth are fixedly connected to the two crushing rollers, the crushing teeth of the two crushing rollers cooperate with each other, the cleaning teeth fit in the gap between adjacent crushing teeth, and both ends of the crushing rollers are provided with toothless parts.

[0018] Furthermore, the screening component includes two filter frames, one of which is fixedly connected with a medium-pore filter screen, and the other of which is fixedly connected with a small-pore filter screen, the two filter frames are arranged in the screening chamber and divide the screening chamber into a first chamber, a second chamber and a third chamber from top to bottom, one of which is located above the other filter frame, the material holding chamber and the screening chamber are separated and formed by a partition, a return port connected to the first chamber is provided on the partition, a discharge port connected to the second chamber is provided on the side wall of the processing box, and a waste port connected to the third chamber is provided on the bottom of the processing box;

[0019] A feeding hopper is fixedly connected to the side wall of the processing box, and the feeding hopper is communicated with the material holding cavity.

[0020] Furthermore, a servo motor is fixedly connected to the side wall of the processing box, and an output end of the servo motor is fixedly connected to one of the crushing rollers, and mutually meshing transmission gears are detachably connected to one end of the two crushing rollers, and a first guide wheel is fixedly connected to the other end of the other crushing roller;

[0021] The two filter frames are slidably connected in the screening chamber, and a plurality of triangular baffles are fixedly connected to the two filter frames, and the cross section of the triangular baffles is in the shape of a right-angled triangle. The first guide wheel drives the two filter frames to slide back and forth in the screening chamber through a linkage mechanism;

[0022] The linkage mechanism includes a support shaft, which is rotatably connected in the screening chamber, and a driving rod is symmetrically fixedly connected to the support shaft. A swing sleeve is slidably sleeved on one end of the driving rod away from the support shaft, and the swing sleeve is rotatably connected to the filter frame at one end away from the driving rod. One end of the support shaft extends to the outside of the processing box and is fixedly connected with an L-shaped connecting rod, and the end of the L-shaped connecting rod is fixedly connected with a sliding column. A cam and a second guide wheel are fixedly connected to the rotating shaft on the side wall of the processing box, and a limited slide rail is provided on the edge of the cam. The sliding column is slidably connected in the limited slide rail, and the first guide wheel is rotatably connected to the second guide wheel through a transmission belt.

[0023] In one embodiment, a weighing module is further included, the weighing module includes three weighing boxes, the three weighing boxes are fixedly connected to the processing box, and respectively cooperate with the discharge port, the return port, and the waste port, the weighing box includes a rectangular side plate and a bottom plate, the bottom plate is rotatably connected to the rectangular side plate, a torsion spring and an electronic counter are installed on the rotation connection shaft of the bottom plate and the rectangular side plate, and a permanent magnet that attracts each other is fixedly connected to the corresponding rectangular side plate on one side of the bottom plate away from the torsion spring;

[0024] A control module is fixedly connected to the processing box, and the control module is used to control the feeding motor, the pitch adjusting motor, the servo motor and the electric slide.

[0025] A method for controlling a crusher for feed processing, the method being used for a crusher for feed processing, the method comprising:

[0026] S1. Feed raw materials to be crushed and processed are added into the feeding chamber through the feeding hopper, and the feeding motor and servo motor are controlled to work through the control module;

[0027] S2. Control the spacing motor to rotate forward through the control module, drive the other crushing roller to approach the other crushing roller from the farthest spacing at a preset speed at a uniform speed until the minimum spacing is reached, and monitor the cumulative discharge volume of the discharge port, return port and waste port in real time through the weighing module, and analyze and obtain the time node corresponding to the optimal spacing between the two crushing rollers;

[0028] S3, controlling the distance adjustment motor to rotate in the reverse direction through the control module, so as to move the other crushing roller away from the one crushing roller at a constant speed at a preset speed until the distance between the two crushing rollers reaches the optimum distance, and then stopping;

[0029] S4. Analyze the accumulated discharge volume of the discharge port and the waste port, and judge that when the feed raw material processing conversion rate does not meet the standard, control the feeding motor to stop working, switch the servo motor to the intermittent working mode, synchronously control the two electric slides to work, drive the cleaning teeth to move back and forth to clean the gap between adjacent crushing teeth, and continue the crushing work after cleaning.

[0030] Furthermore, in step S2, the process of analyzing and obtaining the time node corresponding to the optimal spacing between the two crushing rollers includes:

[0031] Drive the other crushing roller to approach the other crushing roller at a preset speed. The time point when the distance between the two crushing rollers is the largest is preset as t. 1 The time point when the distance between the two crushing rollers is the smallest is t 2 ;

[0032] Establish a rectangular coordinate system to preset the time interval [t 1,t 2 ] is the X-axis, and the cumulative weighing value collected by each weighing module is the Y-axis. The dot graph of the cumulative discharge amount of the discharge port, the return port and the waste port is obtained. The points of the cumulative discharge amount of each discharge port are connected in sequence through a smooth curve to obtain the curve Q of the cumulative discharge amount of large particle feed discharged from the return port over time. s (t), the curve W of the cumulative discharge amount of pellet feed discharged from the discharge port changing with time s (t) and the curve E showing the cumulative discharge of small particle feed discharged from the waste outlet over time s (t);

[0033]

[0034] The feed discharge rate f of the crusher is obtained by analyzing and calculating the formula (1): s (t);

[0035] Among them, Q′ s (t) is the discharge speed curve of large particle feed discharged from the return port, W′ s (t) is the discharge speed curve of the pellet feed discharged from the discharge port, E′ s (t) is the discharge speed variation curve of small particle feed discharged from the waste outlet;

[0036] Preset in the time interval [t 1 , t 2 ], there exists a 0 hour;

[0037] f s (t 0 )=MAX{f s (t)} (2)

[0038] The crusher feed processing time t is obtained by analyzing and calculating the formula (2). 0 The discharge rate at the time node f s (t 0 );

[0039] Among them, MAX{f s (t)} is the feed discharge rate f of the crusher s The maximum value of (t), that is, t = t 0 When , the crusher has the highest discharge rate of processed feed, and the corresponding distance between the two crushing rollers is the optimal spacing.

[0040] Furthermore, in step S4, the process of determining whether the feed raw material processing conversion rate does not meet the standard includes:

[0041] The feed raw material processing conversion rate during the crushing process is detected by the control module at a preset frequency;

[0042]

[0043] The feed raw material processing conversion rate C is obtained by analysis and calculation through formula (3): s ;

[0044] Among them, the preset time period [t a , t b ] is the time length for the control module to perform a single detection on the feed raw material processing conversion rate, E s (t b ) is t b The cumulative discharge amount of small-particle feed discharged from the waste outlet at the time node, E s (t a ) is t a The cumulative amount of small-particle feed discharged from the waste outlet at the time node, W s (t b ) is t b The cumulative discharge amount of medium-sized pellet feed discharged from the discharge port at the time node, W s (t a ) is t a The cumulative discharge amount of medium-sized pellet feed discharged from the discharge port at the time node;

[0045] The feed raw material processing conversion rate C s and preset standard conversion rate C for feed raw material processing abn Make a comparison;

[0046] When C s ≤C abn When the feed raw material processing conversion rate is not up to standard, it means that the gap between adjacent crushing teeth on the crushing roller needs to be cleaned;

[0047] On the contrary, the crusher continuously processes and crushes the feed raw materials.

[0048] Beneficial effects of the present invention:

[0049] (1) The present invention screens and classifies feeds of different particle sizes through a screening component disposed in a screening chamber, and transports the feeds to different feed outlets for discharge according to the different particle sizes of the feeds. Large particles of feed are returned to the material holding chamber for repeated crushing, small particles of feed are screened to the bottom of the processing box and discharged through the outlet, and medium particles of feed are screened out and discharged through the outlet on the side wall of the processing box. In this way, small particles of feed generated during the processing of feed raw materials by the crusher can be screened and removed, and the obtained feeds are all particles of moderate size. Dust is not easily generated during transportation or feeding to affect the health of workers or animals, and the feed is beneficial to the digestion of the digestive system of chickens, ducks and geese when used in feeding.

[0050] (2) The present invention uses a cleaning component to clean the residual feed attached to the crushing component at a preset frequency or by intelligent control, thereby ensuring the conversion rate of the feed raw materials into finished qualified feed and reducing the production cost of the feed.

[0051] (3) In the present invention, when the filter frame slides back and forth in the screening chamber, when the filter frame slides upward, the triangular baffle rod will drive the feed particles on the filter screen in the upward direction. When the filter frame moves downward, the feed particles driven by the triangular baffle rod will roll over the triangular baffle rod moving downward under the action of their own inertia, and then will be blocked by the triangular baffle rod when they fall down by their own weight. During the movement of the filter frame in this way, the feed particles on the filter screen will roll a large distance on the filter screen, so that the feed particles are fully filtered by the filter screen, thereby improving the efficiency and probability of feed particles with a particle diameter less than or equal to the filter mesh hole passing through the filter screen. Feed particles with a particle diameter greater than the filter mesh hole will be gradually sent to the highest point of the corresponding filter frame under the sequential pushing action of each triangular baffle rod, and then discharged into the feed holding chamber through the return port or discharged from the processing box through the discharge port. The crushed feed can be fully screened according to different particle sizes, and the small particle feed generated in the production process can be screened and removed from the medium particle size feed, thereby ensuring the quality of the feed obtained through processing and production.

[0052] (4) In the present invention, the whole process of another crushing roller approaching the one crushing roller at a preset speed is timed, and a curve Q of the cumulative discharge amount of large-particle feed discharged from the return feed port changing with time is obtained by modeling. s (t), the curve W of the cumulative discharge amount of pellet feed discharged from the discharge port changing with time s (t) and the curve E showing the cumulative discharge of small particle feed discharged from the waste outlet over time s (t), and then the curve f of the feed discharge rate of the crusher over time is obtained by analyzing and calculating formula (1) s (t), the curve f of the feed output rate of the crusher over time within the preset time interval s The maximum value of (t)MAX{f s (t)}, analyze and obtain the time node t corresponding to the optimal spacing between the two crushing rollers 0 , and then control the pitch-adjusting motor to rotate in the reverse direction through the control module until t a Stopping after a period of time can achieve the optimum spacing between the two crushing rollers. By keeping the two crushing rollers working at this spacing, the feed raw material can be crushed with optimal efficiency. Feed raw materials with different particle sizes can be intelligently analyzed to obtain the optimal crushing efficiency, thereby improving the efficiency of the crusher in crushing feed raw materials.

[0053] (5) In the present invention, the feed raw material is analyzed by formula (3) to obtain the feed raw material in the preset time period [t a ,t b ] within the processing conversion rate C s , when there is any preset time period [t a ,t b ] within the processing conversion rate C s Less than or equal to the preset standard conversion rate C for feed raw material processing abn When the feed residue attached to the crushing roller is cleaned by the cleaning teeth through the control module, the crushing work can be resumed after the cleaning is completed, thereby improving the feed raw material processing conversion rate, achieving the purpose of increasing the production output of feed raw materials, and reducing the cost of consuming feed raw materials in the feed processing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] The present invention will be further described below in conjunction with the accompanying drawings.

[0055] Figure 1 The structure of a feed processing crusher proposed in the present invention is shown in FIG. Figure 1 ;

[0056] Figure 2 For the present invention Figure 1 A partial enlarged view of the middle A area;

[0057] Figure 3 The structure of a feed processing crusher proposed in the present invention is shown in FIG. Figure 2 ;

[0058] Figure 4 For the present invention Figure 3 A partial enlarged view of the middle B area;

[0059] Figure 5 It is a structural schematic diagram of the cam part of a feed processing crusher proposed in the present invention;

[0060] Figure 6 The structural schematic diagram of a feed processing crusher proposed in the present invention is a cross-sectional view Figure 1 ;

[0061] Figure 7 For the present invention Figure 6 A partial enlarged view of the middle C area;

[0062] Figure 8 For the present invention Figure 6 A partial enlarged view of the D area in the middle;

[0063] Fig. 9 The structural schematic diagram of a feed processing crusher proposed in the present invention is a cross-sectional view Figure 2 ;

[0064] Fig.10 For the present invention Fig. 9 A partial enlarged view of the middle E area;

[0065] Fig.11 It is a structural schematic diagram of a cleaning tooth part of a feed processing crusher proposed in the present invention;

[0066] Fig.12 The present invention is a flow chart of the steps of a feed processing crusher control method.

[0067] Description of the drawings: 1. Processing box; 11. Fixed plate; 12. Pitch-adjusting motor; 13. Sliding window; 14. Partition; 141. Return port; 15. Discharge port; 16. Waste port; 17. Feeding hopper; 18. Control module; 19. Servo motor; 2. Material chamber; 21. Loading barrel; 22. Screw lifting rod; 23. Loading motor; 3. Crushing chamber; 31. Crushing roller; 311. Crushing teeth; 312. No-tooth part; 32. Transmission gear; 33. First guide wheel; 4. Screening chamber; 41. First chamber; 42. First Second chamber; 43, third chamber; 5, L-shaped support plate; 51, threaded rod; 52, sliding baffle; 6, electric slide; 61, slider; 62, cleaning teeth; 7, filter frame; 71, medium-pore filter; 72, small-pore filter; 73, triangular baffle; 8, support shaft; 81, drive rod; 82, swing sleeve; 83, L-shaped connecting rod; 84, sliding column; 85, rotating shaft; 86, cam; 87, limit slide rail; 88, second guide wheel; 89, transmission belt; 9, weighing box; 91, rectangular side panel; 92, bottom plate. DETAILED DESCRIPTION

[0068] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0069] See also Figures 1 to 11 As shown, in one embodiment, a feed processing crusher is provided, comprising:

[0070] A processing box 1, wherein the processing box 1 is provided with a material holding chamber 2, a crushing chamber 3 and a screening chamber 4;

[0071] The feeding assembly is arranged in the feeding chamber 2 and is used to transport the feed raw materials in the feeding chamber 2 to the crushing chamber 3;

[0072] A crushing assembly is provided at the connection point between the crushing chamber 3 and the screening chamber 4, and is used for crushing the feed raw materials;

[0073] A screening component is arranged in the screening chamber 4, and is used to screen and classify the processed feed according to different particle sizes and transport them to different feed outlets;

[0074] The cleaning components are arranged on both sides of the crushing components and are used to clean the residual feed attached to the crushing components.

[0075] Through the above technical scheme, this embodiment provides a feed processing crusher, including a processing box 1, wherein a material holding chamber 2, a crushing chamber 3 and a screening chamber 4 are arranged in the processing box 1. During operation, the feed raw materials in the material holding chamber 2 are transported to the crushing chamber 3 through the feeding component, and then the feed raw materials fall into the screening chamber 4 through the crushing chamber 3 under the action of their own weight. During this process, the crushing component will crush the feed raw materials to make the feed raw materials into feeds of different particle sizes. After entering the screening chamber 4, the screening component arranged in the screening chamber 4 will screen and classify the feeds of different particle sizes, and transport them to different feed outlets for discharge according to the different particle sizes of the feeds, wherein the large particles of feed will be returned to the material holding chamber 2 for repeated crushing, the small particles of feed will be screened to the bottom of the processing box 1 and discharged through the outlet, and the medium particles of feed will be screened out and discharged through the processing box 1. The outlet on the side wall can be used to discharge the small particles of feed generated in the process of crushing feed raw materials by the crusher, so that the small particles of feed generated in the process of crushing feed raw materials can be screened and removed, and the obtained feed are all particles of moderate size. It is not easy to generate dust during transportation or feeding, which affects the health of workers or animals. It is beneficial to the digestion of chickens, ducks and geese in the process of feeding chickens, ducks and geese. As the crushing components continue to crush the feed raw materials, feed residues will adhere to the crushing components, which will cause the gaps between the crushing components to become smaller, which may cause the proportion of small particles of feed generated in the process of crushing feed raw materials to increase, thereby reducing the conversion rate of feed raw materials into finished qualified feed. Therefore, the residual feed attached to the crushing components can be cleaned by the cleaning component at a preset frequency or by intelligent control, thereby ensuring the conversion rate of feed raw materials into finished qualified feed and reducing the production cost of feed.

[0076] In one embodiment, the feeding assembly includes a feeding barrel 21, the top end of the feeding barrel 21 is connected to the crushing chamber 3, a spiral lifting rod 22 is rotatably connected inside the feeding barrel 21, a feeding motor 23 is fixedly connected to the processing box 1, the output end of the feeding motor 23 is fixedly connected to the spiral lifting rod 22, the lowest end of the spiral lifting rod 22 is immersed in the feed raw materials in the feeding chamber 2, when the feeding motor 23 is controlled to work, the feeding motor 23 can drive the spiral lifting rod 22 to rotate, the spiral lifting rod 22 can lift the feed raw materials, and transport them to the crushing chamber 3 through the feeding barrel 21.

[0077] The crushing assembly includes two crushing rollers 31, one crushing roller 31 is rotatably connected to the processing box 1, and the other crushing roller 31 is rotatably connected to the adjusting mechanism. The two crushing rollers 31 cooperate with each other to crush the feed material passing through the gap between the two crushing rollers 31. The adjusting mechanism is used to adjust the distance between the two crushing rollers 31, which can facilitate the crushing of feed materials with different particle sizes. For example, the distance between the two crushing rollers 31 of feed materials of soybean and corn will have a certain difference during the crushing process, and the particle size of the same feed material may also have a certain difference due to the growth environment or variety. During the processing, the distance between the two crushing rollers 31 is adjusted according to the particle size of the feed material, which can effectively improve the crushing efficiency of the feed processing process and reduce the cost of the feed material;

[0078] The adjusting mechanism comprises two L-shaped supporting plates 5, which are respectively slidably connected to the side walls of the processing box 1 on both sides, and two ends of another crushing roller 31 are respectively rotatably connected to the two L-shaped supporting plates 5, and the side walls of the processing box 1 on both sides are symmetrically fixedly connected with fixed plates 11, and threaded rods 51 are threadedly connected to the fixed plates 11, and one end of the threaded rod 51 is rotatably connected to the L-shaped supporting plates 5, and the side walls of the processing box 1 on both sides are symmetrically slidably connected with distance-adjusting motors 12, and the output end of the distance-adjusting motor 12 is fixedly connected to the other end of the threaded rod 51. When it is necessary to adjust the distance between the two crushing rollers 31, the two distance-adjusting motors 12 can be controlled to rotate synchronously, and the distance-adjusting motor 12 drives the threaded rod 51 to rotate. Under the thread limit of the fixed plate 11, the threaded rod 51 drives the threaded rod 51 and the distance-adjusting motor 12 to slide in the left and right directions during the rotation process, thereby driving the L-shaped supporting plate 5 to slide on the side walls of the processing box 1, thereby adjusting the distance between the two crushing rollers 31;

[0079] Sliding windows 13 are symmetrically provided on the side walls on both sides of the processing box 1, and the two L-shaped support plates 5 are slidably connected in the corresponding sliding windows 13 respectively. Both ends of the two L-shaped support plates 5 are fixedly connected with sliding baffles 52, and the sliding baffles 52 are embedded and slidably connected in the side walls on both sides of the processing box 1. The sliding baffles 52 are fixedly connected at both ends of the L-shaped support plates 5, which can guide and block the sliding windows 13 during the sliding process of the L-shaped support plates 5, thereby preventing the L-shaped support plates 5 from falling off from the side walls of the processing box 1, and also preventing the feed from rolling out of the processing box 1 through the sliding windows 13.

[0080] The cleaning assembly includes two electric slides 6, one electric slide 6 is fixedly connected in the processing box 1, and is located on one side of a crushing roller 31, and the other electric slide 6 is fixedly connected at both ends to two L-shaped support plates 5, and is located on the other side of the crushing roller 31. A slider 61 is installed on the electric slide 6, and a cleaning tooth 62 is fixedly connected to the slider 61;

[0081] A plurality of crushing teeth 311 are fixedly connected to the two crushing rollers 31. The crushing teeth 311 of the two crushing rollers 31 cooperate with each other, and the cleaning teeth 62 fit in the gap between adjacent crushing teeth 311. Both ends of the crushing roller 31 are provided with toothless portions 312. During the cleaning process of the crushing roller 31 by the cleaning component, the slider 61 and the cleaning teeth 62 can be driven to move back and forth by the electric slide 6. When the cleaning teeth 62 are aligned with the gap between adjacent crushing teeth 311, the electric slide 6 drives the cleaning teeth 62 to move to clean the gap between adjacent crushing teeth 311, so as to achieve the purpose of cleaning the feed residues attached to the crushing roller 31. When the crushing roller 31 rotates, the cleaning teeth 62 are arbitrarily aligned with the toothless portions 312 provided on both ends of the crushing roller 31, which can avoid the collision between the crushing roller 31 and the cleaning teeth 62 during the rotation process.

[0082] The screening component includes two filter frames 7, one of which is fixedly connected with a medium-pore filter screen 71, and the other filter frame 7 is fixedly connected with a small-pore filter screen 72. The two filter frames 7 are arranged in the screening chamber 4 and divide the screening chamber 4 into a first chamber 41, a second chamber 42 and a third chamber 43 from top to bottom. One filter frame 7 is located above the other filter frame 7. The material chamber 2 and the screening chamber 4 are separated by a partition 14. The partition 14 is provided with a return port 141 connected to the first chamber 41, a discharge port 15 connected to the second chamber 42 is provided on the side wall of the processing box 1, and a waste port 16 connected to the third chamber 43 is provided on the bottom of the processing box 1. In the process of filtering the crushed feed through the screening component, First, all feed particles will fall into the first chamber 41, among which small-particle feed and medium-particle feed will pass through the medium-pore filter screen 71 and enter the second chamber 42, and large-particle feed will enter the material holding chamber 2 through the return port 141, so as to be repeatedly crushed, and the small-particle feed entering the second chamber 42 will continue to pass through the small-pore filter screen 72 and enter the third chamber 43, and the medium-particle feed will be discharged through the discharge port 15, and the small-particle feed entering the third chamber 43 will be discharged through the waste port 16, so that the crushed feed can be fully screened according to different particle sizes, and the small-particle feed generated in the production process can be screened and removed from the medium-particle feed, thereby ensuring the quality of the feed obtained by processing and production;

[0083] A feeding hopper 17 is fixedly connected to the side wall of the processing box 1 , and the feeding hopper 17 is communicated with the material holding chamber 2 . The feeding hopper 17 is convenient for adding feed raw materials to be processed into the material holding chamber 2 .

[0084] A servo motor 19 is fixedly connected to the side wall of the processing box 1, and the output end of the servo motor 19 is fixedly connected to a crushing roller 31. One end of the two crushing rollers 31 is detachably connected with a mutually meshing transmission gear 32. During the rotation of the servo motor 19, the two crushing rollers 31 can be driven to rotate in opposite directions, so that the feed materials passing through the gap between the two crushing rollers 31 are fully crushed. It should be noted that the distance between the two mutually meshing transmission gears 32 can be fine-tuned to a certain extent. During the fine-tuning process, the two transmission gears 32 have stable transmission performance. When the spacing between the two crushing rollers 31 that needs to be adjusted is beyond the fine-tunable spacing of the group of transmission gears 32, the two transmission gears 32 can be replaced. In actual use, the crusher supporting parts are provided with a plurality of groups of transmission gears 32 of different specifications. During use, the transmission gears 32 of corresponding specifications can be pre-installed according to the conventional size of the feed raw materials to be crushed. For example, when the feed raw materials are soybeans and corn, the transmission gears 32 used are of corresponding specifications. A first guide wheel 33 is fixedly connected to the other end of the other crushing roller 31;

[0085] The two filter frames 7 are both slidably connected in the screening chamber 4, and the two ends of the filter frames 7 are limited in the up and down directions by the side walls of the processing box 1 and the partition 14. A number of triangular blocking rods 73 are fixedly connected to the two filter frames 7. The cross section of the triangular blocking rods 73 is in the shape of a right-angled triangle. The two filter frames 7 are both tilted. The right-angled sides of the right-angled triangle in the cross section of the triangular blocking rods 73 on the filter frames 7 are all facing the highest point of the filter frames 7. The first guide wheel 33 drives the two filter frames 7 to slide back and forth in the screening chamber 4 through the linkage mechanism. During the screening process, the feed particles falling onto the filter screen will be distributed in a stepped manner under the obstruction of the triangular blocking rods 73. When the filter frame 7 reciprocates in the screening chamber 4, when the filter frame 7 slides upward, the feed particles on the filter screen will be tilted through the triangular blocking rods 73. Driven in an oblique upward direction, when the filter frame 7 moves obliquely downward, the feed particles driven by the triangular blocking rod 73 will roll over the triangular blocking rod 73 moving obliquely downward under the action of their own inertia, and then will be blocked by the triangular blocking rod 73 when falling down by their own weight. During the movement of the filter frame 7 in this way, the feed particles on the filter screen will roll a large distance on the filter screen, so that the feed particles are fully filtered by the filter screen, and the efficiency and probability of feed particles with a particle diameter less than or equal to the filter mesh hole passing through the filter screen are improved, and the feed particles with a particle diameter greater than the filter mesh hole will be gradually sent to the highest point of the corresponding filter frame 7 under the sequential pushing action of each triangular blocking rod 73, and then discharged into the material holding chamber 2 through the return port 141 or discharged from the processing box 1 through the discharge port 15;

[0086] The linkage mechanism includes a support shaft 8, which is rotatably connected in the screening chamber 4. A driving rod 81 is symmetrically fixedly connected to the support shaft 8. A swing sleeve 82 is slidably sleeved on the end of the driving rod 81 away from the support shaft 8. The end of the swing sleeve 82 away from the driving rod 81 is rotatably connected to the filter frame 7. One end of the support shaft 8 extends to the outside of the processing box 1 and is fixedly connected to an L-shaped connecting rod 83. The end of the L-shaped connecting rod 83 away from the support shaft 8 is fixedly connected to a sliding column 84. A rotating shaft 85 is rotatably connected to the side wall of the processing box 1. A cam 86 and a second guide wheel 88 are fixedly connected to the rotating shaft 85. A limited slide rail 87 is provided on the edge of the cam 86. The sliding column 84 is slidably connected in the limited slide rail 87. The first guide wheel 33 is driven by a transmission The driving belt 89 is rotatably connected with the second guide wheel 88. During the rotation of the crushing roller 31, the first guide wheel 33 can be driven to rotate, and then the second guide wheel 88 is driven to rotate through the transmission belt 89, and the cam 86 is driven to rotate through the rotating shaft 85. During the rotation of the cam 86, the L-shaped connecting rod 83 can be driven to swing back with the support shaft 8 as a fulcrum through the cooperation of the limiting slide rail 87 and the sliding column 84, thereby driving the support shaft 8 to reciprocate at a preset angle. In this way, the driving rod 81 fixedly connected to the support shaft 8 will drive the two filter frames 7 to slide back and forth in the screening chamber 4 along the frame direction of the filter frame 7 through the swing sleeve 82 of the sliding sleeve, thereby achieving the purpose of driving the two filter frames 7 to slide back and forth at an inclined angle.

[0087] It also includes a weighing module, which includes three weighing boxes 9. The three weighing boxes 9 are all fixedly connected to the processing box 1 and respectively cooperate with the discharge port 15, the return port 141 and the waste port 16. The feed particles discharged through the discharge port 15, the return port 141 and the waste port 16 will fall into the corresponding weighing boxes 9. The weighing box 9 includes a rectangular side plate 91 and a bottom plate 92. The bottom plate 92 is rotatably connected to the rectangular side plate 91. A torsion spring and an electronic counter are installed on the rotation connection shaft between the bottom plate 92 and the rectangular side plate 91. Permanent magnets that attract each other are fixedly connected to the corresponding rectangular side plate 91 on the side of the bottom plate 92 away from the torsion spring. When the feed particles falling into the weighing box 9 are small, their own weight cannot push the bottom plate 92 under the action of the permanent magnet and the torsion spring. When the feed particles falling into the weighing box 9 are large, the feed particles will not be able to move. When the weight of the feed particles in the weighing box 9 reaches a certain weight, it will push the bottom plate 92 under the action of the permanent magnet and the torsion spring. When the bottom plate 92 rotates, the mutually attracted permanent magnets will separate, the suction force will be reduced, and the bottom plate 92 will be fully opened under the weight of the feed particles, so that all the feed particles in the weighing box 9 will fall down. Then the bottom plate 92 will be reset under the action of the torsion spring until the two permanent magnets are in contact, forming a weighing box 9 with a rated weight. In this way, the weighing box 9 will discharge once every time the rated weight of feed particles is loaded. The electronic counter installed on the weighing box 9 counts the number of times the weighing box 9 is opened, so as to achieve the purpose of collecting the cumulative weight of the discharged feed from the discharge port 15, the return port 141, and the waste port 16.

[0088] A control module 18 is fixedly connected to the processing box 1 , and the control module 18 is used to control the feeding motor 23 , the pitch-adjusting motor 12 , the servo motor 19 and the electric slide 6 .

[0089] See also Fig.12 As shown, in one embodiment, a method for controlling a crusher for feed processing is provided, the method is used for a crusher for feed processing, and the method comprises:

[0090] S1, feed raw materials to be crushed and processed are added into the feeding chamber 2 through the feeding hopper 17, and the feeding motor 23 and the servo motor 19 are controlled by the control module 18 to work;

[0091] S2, control the spacing motor 12 to rotate forward through the control module 18, drive the other crushing roller 31 to approach the other crushing roller 31 from the farthest spacing at a preset speed at a uniform speed until the minimum spacing is reached, and monitor the cumulative discharge amount of the discharge port 15, the return port 141 and the waste port 16 in real time through the weighing module, and analyze and obtain the time node corresponding to the optimal spacing between the two crushing rollers 31;

[0092] S3, controlling the distance adjusting motor 12 to rotate in the reverse direction through the control module 18, so as to move the other crushing roller 31 away from the first crushing roller 31 at a preset speed at a uniform speed until the distance between the two crushing rollers 31 reaches the optimum distance, and then stops;

[0093] S4. Analyze the accumulated discharge amount of the discharge port 15 and the waste port 16, and judge that when the feed raw material processing conversion rate does not meet the standard, control the feeding motor 23 to stop working, switch the servo motor 19 to the intermittent working mode, synchronously control the two electric slides 6 to work, drive the cleaning teeth 62 to move back and forth to clean the gap between adjacent crushing teeth 311, and continue the crushing work after the cleaning is completed.

[0094] Through the above technical scheme, this embodiment provides a control method for a feed processing crusher, firstly, the feed raw material to be crushed is added into the material holding chamber 2, and the feeding motor 23 and the servo motor 19 are controlled by the control module 18 to work, the feeding motor 23 transports the feed raw material in the material holding chamber 2 to the crushing chamber 3, the servo motor 19 drives the two crushing rollers 31 to work, and the feed raw material entering the screening chamber 4 through the crushing chamber 3 is crushed, and then the control module 18 controls the pitch motor 12 to rotate forward, driving the other crushing roller 31 to rotate at a preset speed. The rollers 31 are moved toward one another from the farthest distance at a uniform speed until the minimum distance is reached. The farthest distance is the farthest distance that can be formed between the two crushing rollers 31 under the transmission gear 32 of the corresponding specification. Specifically, it is the distance between the two crushing rollers 31 when the transmission gear 32 of the corresponding specification is installed and the distance-adjusting motor 12 is controlled to work so that the two transmission gears 32 are close enough to be able to perform stable transmission. There is no need to perform actual measurement. The minimum distance is the minimum distance that can be formed between the two crushing rollers 31 under the transmission gear 32 of the corresponding specification. Specifically, it is the distance between the two crushing rollers 31 when the transmission gears 32 of the corresponding specification are fully meshed with each other. The distance between the two crushing rollers 31 formed when the feed material is processed is not required to be actually measured. In this process, the cumulative discharge amount of the discharge port 15, the return port 141 and the waste port 16 is monitored in real time by the weighing module. The distance between the two crushing rollers 31 is the most suitable distance when the proportion of qualified finished feed discharged from the discharge port 15 is the largest during the feed material processing. The time node of the most suitable distance is analyzed and obtained, and then the control module 18 controls the distance adjusting motor 12 to rotate in the opposite direction, and the other crushing roller 31 is moved away from the one crushing roller 31 at a preset speed. It moves at a constant speed until the distance between the two crushing rollers 31 reaches the optimal distance corresponding to the time node obtained by the analysis in step S2, and stops. In this way, the feed raw materials are continuously crushed to achieve the optimal efficiency crushing of the feeding motor 23 and the servo motor 19 of the crusher at this speed. It should be noted that the speed of the feeding motor 23 and the servo motor 19 during the operation of the crusher is manually preset. Generally, multiple speed gears are manually preset according to the specification parameters of the feeding motor 23 and the servo motor 19, which can facilitate the crushing of feed raw materials of different materials based on experience.

[0095] Finally, during the crushing process of the feed raw materials, the accumulated discharge amounts of the discharge port 15 and the waste port 16 collected are analyzed, and it is judged that when the feed raw material processing conversion rate does not meet the standard, continuing to crush the feed raw materials may produce more powdered feed, resulting in an increase in the feed production cost. The feeding motor 23 is controlled to stop working, and the servo motor 19 is switched to the intermittent working mode, and the two electric slides 6 are synchronously controlled to work, and the cleaning teeth 62 are driven to reciprocate to clean the gaps between adjacent crushing teeth 311. The specific process is that when the electric slide 6 drives the cleaning teeth 62 to reciprocate, when the cleaning teeth 62 correspond to the toothless portions 312 of the crushing roller 31 at both ends of the electric slide 6, the crushing roller 31 rotates at a preset angle under the drive of the servo motor 19, and when the cleaning teeth 62 move in the middle section of the electric slide 6, the crushing roller 31 does not rotate, and the cleaning teeth 62 scrape and clean the gaps between adjacent crushing teeth 311.

[0096] In one embodiment, in step S2, the process of analyzing and obtaining the time node corresponding to the optimal spacing between the two crushing rollers 31 includes:

[0097] The other crushing roller 31 is driven to approach the first crushing roller 31 at a preset speed, and the time point when the distance between the two crushing rollers 31 is the maximum is preset as t 1 The time point when the distance between the two crushing rollers 31 is the smallest is t 2 ;

[0098] Establish a rectangular coordinate system to preset the time interval [t 1 ,t 2 ] is the X-axis, and the cumulative weighing value collected by each weighing module is the Y-axis. The dot graph of the cumulative discharge amount of the discharge port 15, the return port 141 and the waste port 16 is obtained. The points of the cumulative discharge amount of each discharge port are connected in sequence through a smooth curve to obtain the curve Q of the cumulative discharge amount of large particle feed discharged from the return port 141 over time. s (t), curve W showing the cumulative discharge amount of medium-sized pellet feed discharged from the discharge port 15 as a function of time s (t) and the curve E showing the cumulative discharge amount of small particle feed discharged from the waste outlet 16 over time s (t);

[0099]

[0100] The feed discharge rate f of the crusher is obtained by analyzing and calculating the formula (1): s (t);

[0101] Among them, Q′ s (t) is the discharge speed curve of the large particle feed discharged from the return port 141, W′ s(t) is the discharge speed curve of the medium-sized pellet feed discharged from the discharge port 15, E s (t) is the discharge speed variation curve of the small particle feed discharged from the waste outlet 16;

[0102] Preset in the time interval [t 1 , t 2 ], there exists a 0 hour;

[0103] f s (t 0 )=MAX{f s (t)} (2)

[0104] The crusher feed processing time t is obtained by analyzing and calculating the formula (2). 0 The discharge rate at the time node f s (t 0 );

[0105] Among them, MAX{f s (t)} is the feed discharge rate f of the crusher s The maximum value of (t), that is, t = t 0 When , the discharge rate of the crusher for processing feed is the highest, and the corresponding distance between the two crushing rollers 31 is the optimal distance.

[0106] Through the above technical solution, this embodiment provides a method for analyzing and obtaining the time node corresponding to the optimal spacing between the two crushing rollers 31, by timing the entire process of the other crushing roller 31 approaching the one crushing roller 31 at a preset speed, and the starting time node is t 1 , the end time node is t 2 , establish a rectangular coordinate system to preset the time interval [t 1 , t 2 ] is the X-axis, the cumulative weighing values ​​collected by the three weighing boxes 9 are the Y-axis, and the curve Q of the cumulative discharge amount of large particle feed discharged from the return port 141 changing with time is obtained by modeling. s (t), curve W showing the cumulative discharge amount of medium-sized pellet feed discharged from the discharge port 15 as a function of time s (t) and the curve E showing the cumulative discharge amount of small particle feed discharged from the waste outlet 16 over time s(t), wherein the cumulative discharge amount can be obtained by multiplying the number of times each weighing box 9 is opened collected by the electronic counter by the rated weighing weight preset during the manufacturing process of each weighing box 9. The rated weighing weights of the three weighing boxes 9 can be the same, or the rated weighing weights preset for weighing boxes 9 at different positions can be different. In addition, the two permanent magnets fixedly connected to the weighing box 9 can be replaced with an electromagnet and an iron sheet with adjustable magnetic properties. This makes it easy to adjust and calibrate the rated weighing weight of each weighing box 9. Then, the curve f of the discharge rate of the crusher processed feed changing with time is obtained by analyzing and calculating the formula (1). s (t), where Q′ s (t) is the discharge speed variation curve of the large-particle feed discharged from the return port 141, which can be obtained by calculating the cumulative discharge amount of the large-particle feed discharged from the return port 141 versus time curve Q s (t) Take the derivative and get W′ s (t) is the curve of the discharge speed of the medium-sized pellet feed discharged from the discharge port 15, which can be obtained by measuring the cumulative discharge amount of the medium-sized pellet feed discharged from the discharge port 15 over time. s (t) Take the derivative and get E′ s (t) is the discharge speed variation curve of the small particle feed discharged from the waste port 16, which can be obtained by measuring the cumulative discharge amount of the small particle feed discharged from the waste port 16 over time. s (t) is derived to obtain the curve f of the feed discharge rate of the crusher over time within the preset time interval. s The maximum value of (t)MAX{f s (t)), get the corresponding time node t 0 , thus the time node corresponding to the optimum spacing between the two crushing rollers 31 can be analyzed and obtained;

[0107] It should be noted that in step S3, the control module 18 controls the distance adjusting motor 12 to rotate in the reverse direction until the distance between the two crushing rollers 31 reaches the optimum distance and stops. a =t 2 -t 0 The analysis and calculation obtains that the other crushing roller 31 is controlled to move away from the crushing roller 31 at a preset speed t a By stopping after a period of time, the distance between the two crushing rollers 31 can be achieved to be the optimal distance. By keeping the two crushing rollers 31 working at this distance, the feed raw material can be crushed with the optimal efficiency. Feed raw materials with particles of different sizes can be intelligently analyzed to obtain the optimal crushing efficiency, thereby improving the efficiency of the crusher in crushing the feed raw materials.

[0108] In one embodiment, in step S4, the process of determining whether the feed raw material processing conversion rate does not meet the standard includes:

[0109] The control module 18 detects the feed material processing conversion rate during the crushing process at a preset frequency, and the preset frequency can be preset based on experience;

[0110]

[0111] The feed raw material processing conversion rate C is obtained by analysis and calculation through formula (3): s ;

[0112] Among them, the preset time period [t a , t b ] is the time length for the control module 18 to perform a single detection on the feed raw material processing conversion rate, that is, the time interval between adjacent detection times of the preset frequency, E s (t b ) is t b The cumulative amount of small-particle feed discharged from the waste outlet 16 at the time node, E s (t a ) is t a The cumulative amount of small-particle feed discharged from the waste outlet 16 at the time node, W s (t b ) is t b The cumulative amount of medium-sized pellet feed discharged from the discharge port 15 at the time node, W s (t a ) is t a The cumulative amount of medium-sized pellet feed discharged from the discharge port 15 at the time node, E s (t b ), E s (t a )、W s (t b ) and W s (t a ) can be obtained by analyzing the data collected by the weighing module;

[0113] The feed raw material processing conversion rate C s and preset standard conversion rate C for feed raw material processing abn Make a comparison;

[0114] When C s ≤C abn When the feed raw material processing conversion rate is not up to standard, it means that the gap between the adjacent crushing teeth 311 on the crushing roller 31 needs to be cleaned;

[0115] On the contrary, the crusher continuously processes and crushes the feed raw materials.

[0116] Through the above technical solution, this embodiment provides a method for detecting whether the feed raw material processing conversion rate meets the standard, and the feed raw material is analyzed by formula (3) to obtain the feed raw material in the preset time period [t a , t b ] within the processing conversion rate C s , when there is any preset time period [t a , t b ] within the processing conversion rate C s Less than or equal to the preset standard conversion rate C for feed raw material processing abn When the feed residue attached to the crushing roller 31 in the crusher is cleaned by the cleaning teeth 62 through the control module 18, the crushing work can be resumed after the cleaning is completed, thereby improving the feed raw material processing conversion rate, achieving the purpose of increasing the production output of feed raw materials, and reducing the cost of consuming feed raw materials during feed processing.

[0117] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A crusher for feed processing, characterized in that: include: A processing box (1), wherein the processing box (1) is provided with a material holding chamber (2), a crushing chamber (3) and a screening chamber (4); A feeding assembly is arranged in the feeding chamber (2) and is used to transport the feed raw materials in the feeding chamber (2) to the crushing chamber (3); A crushing assembly is provided at the connection point between the crushing chamber (3) and the screening chamber (4), and is used for crushing the feed raw materials; A screening component is arranged in the screening chamber (4) and is used to screen and classify the processed feed according to different particle sizes and transport them to different feed outlets; The cleaning components are arranged on both sides of the crushing component and are used for cleaning the residual feed attached to the crushing component.

2. A feed processing crusher according to claim 1, characterized in that: The feeding assembly comprises a feeding barrel (21), the top end of the feeding barrel (21) is connected to the crushing chamber (3), a spiral feeding rod (22) is rotatably connected inside the feeding barrel (21), a feeding motor (23) is fixedly connected to the processing box (1), and the output end of the feeding motor (23) is fixedly connected to the spiral feeding rod (22).

3. A feed processing crusher according to claim 2, characterized in that: The crushing assembly comprises two crushing rollers (31), one of the crushing rollers (31) is rotatably connected in the processing box (1), and the other crushing roller (31) is rotatably connected to an adjustment mechanism, the two crushing rollers (31) cooperate with each other, and the adjustment mechanism is used to adjust the distance between the two crushing rollers (31); The adjustment mechanism comprises two L-shaped support plates (5), the two L-shaped support plates (5) are respectively slidably connected to the side walls of the processing box (1), the two ends of the other crushing roller (31) are respectively rotatably connected to the two L-shaped support plates (5), the side walls of the processing box (1) are symmetrically fixedly connected with fixed plates (11), the fixed plates (11) are threadedly connected with threaded rods (51), one end of the threaded rod (51) is rotatably connected to the L-shaped support plates (5), the side walls of the processing box (1) are symmetrically slidably connected with pitch-adjusting motors (12), the output end of the pitch-adjusting motor (12) is fixedly connected to the other end of the threaded rod (51); The side walls of the processing box (1) are symmetrically provided with sliding windows (13), the two L-shaped support plates (5) are respectively slidably connected in the corresponding sliding windows (13), and both ends of the two L-shaped support plates (5) are fixedly connected with sliding baffles (52), and the sliding baffles (52) are embedded and slidably connected in the side walls of the processing box (1).

4. A feed processing crusher according to claim 3, characterized in that: The cleaning assembly comprises two electric slides (6), one of the electric slides (6) is fixedly connected in the processing box (1) and is located on one side of the crushing roller (31), and the other electric slide (6) has two ends respectively fixedly connected to two L-shaped support plates (5) and is located on one side of the other crushing roller (31), a slider (61) is installed on the electric slide (6), and a cleaning tooth (62) is fixedly connected to the slider (61); A plurality of crushing teeth (311) are fixedly connected to the two crushing rollers (31), the crushing teeth (311) of the two crushing rollers (31) cooperate with each other, the cleaning teeth (62) fit in the gap between adjacent crushing teeth (311), and both ends of the crushing roller (31) are provided with toothless portions (312).

5. A feed processing crusher according to claim 4, characterized in that: The screening component comprises two filter frames (7), one of the filter frames (7) is fixedly connected with a medium-pore filter screen (71), and the other of the filter frames (7) is fixedly connected with a small-pore filter screen (72), the two filter frames (7) are arranged in the screening chamber (4) and divide the screening chamber (4) into a first chamber (41), a second chamber (42) and a third chamber (43) from top to bottom, one of the filter frames (7) is located above the other of the filter frames (7), the material holding chamber (2) and the screening chamber (4) are separated by a partition (14), the partition (14) is provided with a return port (141) connected to the first chamber (41), the side wall of the processing box (1) is provided with a discharge port (15) connected to the second chamber (42), and the bottom of the processing box (1) is provided with a waste port (16) connected to the third chamber (43); A feeding hopper (17) is fixedly connected to the side wall of the processing box (1), and the feeding hopper (17) is communicated with the material holding chamber (2).

6. A feed processing crusher according to claim 5, characterized in that: A servo motor (19) is fixedly connected to the side wall of the processing box (1), an output end of the servo motor (19) is fixedly connected to one of the crushing rollers (31), one end of the two crushing rollers (31) is detachably connected to mutually meshing transmission gears (32), and the other end of the other crushing roller (31) is fixedly connected to a first guide wheel (33); The two filter frames (7) are both slidably connected in the screening chamber (4); a plurality of triangular blocking rods (73) are fixedly connected to the two filter frames (7); the cross-section of the triangular blocking rods (73) is in the shape of a right-angled triangle; the first guide wheel (33) drives the two filter frames (7) to slide back and forth in the screening chamber (4) through a linkage mechanism; The linkage mechanism comprises a support shaft (8), the support shaft (8) is rotatably connected in the screening chamber (4), a driving rod (81) is symmetrically fixedly connected to the support shaft (8), a swing sleeve (82) is slidably sleeved on one end of the driving rod (81) away from the support shaft (8), and the swing sleeve (82) is rotatably connected to the filter frame (7) at one end away from the driving rod (81), one end of the support shaft (8) extends to the outside of the processing box (1) and is fixedly connected to an L-shaped connecting rod (83), A sliding column (84) is fixedly connected to one end of the L-shaped connecting rod (83) away from the supporting shaft (8); a rotating shaft (85) is rotatably connected to the side wall of the processing box (1); a cam (86) and a second guide wheel (88) are fixedly connected to the rotating shaft (85); a limiting slide rail (87) is provided on the edge of the cam (86); the sliding column (84) is slidably connected in the limiting slide rail (87); and the first guide wheel (33) is rotatably connected to the second guide wheel (88) via a transmission belt (89).

7. A feed processing crusher according to claim 6, characterized in that: It also includes a weighing module, the weighing module includes three weighing boxes (9), the three weighing boxes (9) are fixedly connected to the processing box (1), and respectively cooperate with the discharge port (15), the return port (141), and the waste port (16), the weighing box (9) includes a rectangular side plate (91) and a bottom plate (92), the bottom plate (92) is rotatably connected to the rectangular side plate (91), a torsion spring and an electronic counter are installed on the rotation connection shaft between the bottom plate (92) and the rectangular side plate (91), and a permanent magnet that attracts each other is fixedly connected to the corresponding rectangular side plate (91) on the side of the bottom plate (92) away from the torsion spring; A control module (18) is fixedly connected to the processing box (1), and the control module (18) is used to control the feeding motor (23), the pitch adjustment motor (12), the servo motor (19) and the electric slide (6).

8. A method for controlling a crusher for feed processing, characterized in that: The method is used for a feed processing crusher according to claim 7, and the method comprises: S1, adding feed materials to be crushed and processed into the material holding chamber (2) through the feeding hopper (17), and controlling the feeding motor (23) and the servo motor (19) to work through the control module (18); S2, controlling the spacing motor (12) to rotate in the forward direction through the control module (18), driving the other crushing roller (31) to move from the farthest spacing to the direction of the one crushing roller (31) at a preset speed at a uniform speed until the minimum spacing is reached, and monitoring the cumulative discharge amount of the discharge port (15), the return port (141) and the waste port (16) in real time through the weighing module, and analyzing and obtaining the time node corresponding to the optimal spacing between the two crushing rollers (31); S3, controlling the distance adjustment motor (12) to rotate in the reverse direction through the control module (18), so as to move the other crushing roller (31) at a preset speed in a uniform direction away from the first crushing roller (31), and stopping when the distance between the two crushing rollers (31) reaches an optimum distance; S4, analyzing the accumulated discharge amount of the discharge port (15) and the waste port (16) collected, and judging that when the feed raw material processing conversion rate does not meet the standard, controlling the feeding motor (23) to stop working, switching the servo motor (19) to an intermittent working mode, synchronously controlling the two electric slides (6) to work, driving the cleaning teeth (62) to reciprocate to clean the gap between adjacent crushing teeth (311), and continuing the crushing work after the cleaning is completed.

9. A feed processing crusher control method according to claim 8, characterized in that: In step S2, the process of analyzing and obtaining the time node corresponding to the optimum spacing between the two crushing rollers (31) includes: Driving the other crushing roller (31) to move toward the one crushing roller (31) at a preset speed, wherein the time point when the distance between the two crushing rollers (31) is the largest is preset as t1, and the time point when the distance between the two crushing rollers (31) is the smallest is preset as t2; A rectangular coordinate system is established, with the preset time interval [t1, t2] as the X-axis and the cumulative weighing values ​​collected by each weighing module as the Y-axis, to obtain a dot diagram of the cumulative discharge amount of the discharge port (15), the return port (141) and the waste port (16), and the points of the cumulative discharge amount of each discharge port are sequentially connected by a smooth curve to obtain a curve Q showing the cumulative discharge amount of large-particle feed discharged from the return port (141) over time. s (t), the curve W of the cumulative discharge amount of the medium-sized pellet feed discharged from the discharge port (15) changing with time s (t) and the curve E of the cumulative discharge amount of small particle feed discharged from the waste outlet (16) over time s (t); The feed discharge rate f of the crusher is obtained by analyzing and calculating the formula (1): s (t); Among them, Q s '(t) is the discharge speed variation curve of the large particle feed discharged from the return port (141), W s '(t) is the discharge speed variation curve of the medium-sized pellet feed discharged from the discharge port (15), E s '(t) is the discharge speed variation curve of the small particle feed discharged from the waste outlet (16); It is assumed that within the time interval [t1, t2], there exists when t = t0; f s (t0)=MAX{f s (t)} (2) The discharge rate f of the crusher processing feed at the time node t0 is obtained by analyzing and calculating formula (2): s (t0); Among them, MAX{f s (t)} is the feed discharge rate f of the crusher s When (t) is the maximum value, that is, when t=t0, the discharge rate of the feed processed by the crusher is the highest, and the corresponding distance between the two crushing rollers (31) is the optimal distance.

10. A feed processing crusher control method according to claim 9, characterized in that: In step S4, the process of determining whether the feed raw material processing conversion rate does not meet the standard includes: The feed material processing conversion rate during the crushing process is detected by a control module (18) at a preset frequency; The feed raw material processing conversion rate C is obtained by analysis and calculation through formula (3): s ; Among them, the preset time period [t a ,t b ] is the time length for the control module (18) to perform a single detection on the feed raw material processing conversion rate, E s (t b ) is t b The cumulative amount of small-particle feed discharged from the waste outlet (16) at the time point, E s (t a ) is t a The cumulative amount of small-particle feed discharged from the waste outlet (16) at the time point, W s (t b ) is t b The cumulative amount of medium-sized pellet feed discharged from the discharge port (15) at the time point, W s (t a ) is t a The cumulative amount of medium-grain feed discharged from the discharge port (15) at the time point; The feed raw material processing conversion rate C s and preset standard conversion rate C for feed raw material processing abn Make a comparison; When C s ≤C abn When the feed raw material processing conversion rate is not up to standard, it means that the gap between adjacent crushing teeth (311) on the crushing roller (31) needs to be cleaned; On the contrary, the crusher continuously processes and crushes the feed raw materials.

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