A crushing device for feed processing

Abstract

The present invention belongs to the technical field of pulverizing devices, and in particular relates to a pulverizing device for feed processing, comprising a bracket, a housing, a pulverizing motor, a large pulley, a pulverizing roller, a small pulley, and a transmission belt. The housing and the pulverizing motor are both mounted on the bracket, the large pulley is fixedly mounted on the output shaft of the pulverizing motor, the pulverizing roller is located inside the housing, and the rotating shaft of the pulverizing roller is fixedly connected to the small pulley, and the large pulley and the small pulley are connected by a transmission belt. The present invention achieves primary adaptive adjustment of the pulverizing motor power according to the size of the feed particles through a multi-stage filter screen and a feed detection mechanism within the feed hopper, and then combines the adjustment of the distance between the pulverizing roller and the pulverizing seat and the variable resistance mechanism to perform secondary power adjustment, thereby avoiding energy waste. At the same time, the dust suppression mechanism can process dust generated during the pulverizing process, thereby improving the efficiency and quality of feed processing.

Description

Technical Field

[0001] The invention belongs to the technical field of crushing devices, and in particular relates to a crushing device for feed processing. Background Art

[0002] In the feed processing industry, pulverization is a crucial step. The performance of the pulverization device directly affects the quality and palatability of the feed, as well as the digestion and absorption efficiency of the animal. For example, Publication No. CN118287225A discloses a high-efficiency pulverization device for feed processing. However, due to the wide variety of feed sources and types, the particle size of different feed types varies significantly.

[0003] At present, in the process of feed crushing, the larger the particles of feed, the greater the internal binding force of the material that needs to be overcome to crush it to a certain target particle size, which requires the crushing motor to output a larger power; conversely, the smaller the particles of feed, the smaller the power required by the crushing motor when crushed to the same target particle size; however, most existing feed crushing devices lack intelligent recognition and adjustment mechanisms, and are unable to automatically identify the size of the feed particles input and adjust the power of the crushing motor according to actual conditions. As a result, in the actual production process, whether facing large or small particles of feed, the crushing motor operates at a fixed or empirically set power, resulting in energy waste and increased production costs.

[0004] On the other hand, even for feeds of the same particle size, if a smaller particle size is to be obtained after grinding, the grinding motor needs to provide more energy to overcome the stronger intermolecular forces inside the material, which means that the power consumed by the grinding motor will increase significantly, causing energy waste and increasing production costs.

[0005] Therefore, a feed processing crushing device is proposed. Summary of the Invention

[0006] The object of the present invention is to provide a feed processing crushing device in view of the above problems.

[0007] To achieve the above-mentioned object, the present invention adopts the following technical solutions: A feed processing pulverizing device, comprising a bracket, a housing, a pulverizing motor, a large pulley, a pulverizing roller, a small pulley and a transmission belt, wherein the housing and the pulverizing motor are both arranged on the bracket, the large pulley is fixedly arranged on the output shaft of the pulverizing motor, the pulverizing roller is located inside the housing, and the rotating shaft of the pulverizing roller is fixedly connected to the small pulley, and the large pulley and the small pulley are connected by a transmission belt, and further comprising:

[0008] A feed hopper is fixedly arranged on the top of the shell, and a multi-stage filter screen is fixedly arranged inside the feed hopper at an angle, and the multi-stage filter screen is arranged downwardly at an angle from left to right;

[0009] Multiple feed detection mechanisms are fixedly arranged inside the feed hopper, and the multiple feed detection mechanisms are distributed and arranged in a one-to-one correspondence with different mesh positions of the multi-stage filter;

[0010] A crushing seat is arranged inside the shell, and the crushing seat is located on one side of the crushing roller. An L-shaped fixing plate is fixed to the outer wall of the shell, and a hydraulic cylinder is fixed to the side wall of the L-shaped fixing plate. A push rod is fixed to the movable end of the hydraulic cylinder. The end of the push rod away from the hydraulic cylinder extends to the interior of the shell and is fixedly connected to the side wall of the crushing seat.

[0011] The variable resistance mechanism is fixedly arranged inside the L-shaped fixing plate, and the variable resistance mechanism is connected to the rod wall of the push rod;

[0012] A dust suppression mechanism is provided on the outer wall of the shell and inside the crushing seat;

[0013] The PLC controller is fixedly arranged on the side wall of the L-shaped fixed plate, and the crushing motor, feed detection mechanism, variable resistance mechanism and dust suppression mechanism are all electrically connected to the PLC controller.

[0014] Preferably, the feed detection mechanism includes a detection box fixedly arranged on the inner wall of the feed hopper, a first slider is provided vertically slidingly inside the detection box, a spring is fixedly provided between the bottom of the first slider and the bottom of the detection box, an extrusion rod is fixedly provided on the top of the first slider, the upper end of the extrusion rod extends to the top of the detection box and is fixedly provided with an extrusion plate, a fixing seat is fixedly provided on the inner side wall of the detection box and below the first slider, and a touch switch is fixedly provided on the top of the fixing seat.

[0015] Preferably, the extrusion plate is arranged at an angle, and the area of the extrusion plate is smaller than the area of each stage of the multi-stage filter screen.

[0016] Preferably, the variable resistance mechanism includes a warehouse body fixedly arranged on the L-shaped fixed plate, a second slider is provided inside the warehouse body for horizontal sliding, a connecting rod is fixed on one side of the second slider, the end of the connecting rod away from the second slider extends to the outside of the warehouse body and is fixedly connected to the rod wall of the push rod, a resistance rod is fixedly provided inside the warehouse body for horizontal sliding, a conductive sleeve is fixed inside the second slider, and the conductive sleeve is slidably connected to the resistance rod.

[0017] Preferably, the dust suppression mechanism includes a vacuum cleaner fixedly mounted on the outer wall of the shell, a telescopic bellows is fixedly mounted on the input end of the vacuum cleaner, and the end of the telescopic bellows away from the vacuum cleaner is fixedly connected to the crushing seat, the crushing seat adopts a hollow structure, and a plurality of evenly distributed dust suction holes are opened at the bottom of the crushing seat.

[0018] Preferably, the pulverizing seat adopts a blade-shaped structure, a telescopic shielding piece is fixedly provided on the top of the pulverizing seat, and the end of the telescopic shielding piece away from the pulverizing seat is fixedly connected to the inner wall of the shell.

[0019] Preferably, a discharge pipe is provided at the bottom of the shell, and a receiving box is fixedly provided at the bottom of the bracket and below the discharge pipe.

[0020] Preferably, the top of the feed hopper adopts a closed structure, and a feed port is provided on one side of the feed hopper.

[0021] Compared with the existing technology, the beneficial effects of the present invention are:

[0022] By arranging a multi-stage filter and a feed detection mechanism in the feed hopper, when different types of feed fall on the surface of the multi-stage filter, they first contact the upward inclined end of the multi-stage filter. As the feed rolls on the surface of the multi-stage filter and passes through filter mesh holes of multiple specifications in turn, feed of different particle sizes can be automatically screened. The fallen feed will fall on the top of the feed detection mechanism accordingly. The feed detection mechanism then feeds back an electrical signal to the PLC controller, which controls the power of the crushing motor accordingly. The power of the crushing motor can be adaptively controlled according to the size of the feed particles. The larger the feed particles, the greater the power of the crushing motor controlled by the triggered feed detection mechanism; the smaller the feed particles, the smaller the power of the crushing motor, thereby avoiding energy waste and reducing production costs.

[0023] Through the provision of hydraulic cylinders, push rods, crushing seats and variable resistance mechanisms, during the crushing process, by adjusting the extension length of the hydraulic cylinder, the push rod drives the crushing seat to move, and the moving distance is adjustable, so that the distance between the crushing roller and the crushing seat can be adjusted. The variable resistance mechanism is then used to further perform secondary adaptive adjustment on the power of the crushing motor, automatically adjusting the power according to the required target particle size, more accurately matching the crushing requirements of different feeds, and reducing unnecessary energy consumption.

[0024] The dust suppression mechanism is set up to effectively deal with the dust generated during the crushing process. The dust collector sucks in and processes the dust generated by the crushing through the telescopic bellows and the dust suction holes at the bottom of the crushing seat to prevent the dust from being discharged with the feed and causing environmental pollution. Moreover, the dust suppression mechanism can automatically adjust the power of the vacuum cleaner according to the target particle size of the feed crushing. The smaller the target particle size, the more dust is generated, the greater the power of the vacuum cleaner, and the better the suction effect; otherwise, the power is reduced to avoid energy waste, thereby achieving energy saving while ensuring a clean production environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a perspective view of a feed processing crushing device provided by the present invention;

[0026] Figure 2 This is a cross-sectional view of a feed processing crushing device provided by the present invention;

[0027] Figure 3 This is a top view of a multi-stage filter screen of a feed processing crushing device provided by the present invention;

[0028] Figure 4 This is a diagram of a feed detection mechanism of a feed processing crushing device provided by the present invention;

[0029] Figure 5 This is a structural diagram of an L-shaped fixing plate, a hydraulic cylinder, a push rod and a variable resistance mechanism of a feed processing crushing device provided by the present invention;

[0030] Figure 6 It is a structural schematic diagram of a dust suppression mechanism of a pulverizing device for feed processing provided by the present invention.

[0031] In the figure: 1 bracket, 2 shell, 3 crushing motor, 4 large pulley, 5 crushing roller, 6 small pulley, 7 transmission belt, 8 feed hopper, 9 multi-stage filter, 10 feed detection mechanism, 101 detection box, 102 first slider, 103 spring, 104 extrusion rod, 105 extrusion plate, 106 fixed seat, 107 touch switch, 11 crushing seat, 12 L-type fixed plate, 13 hydraulic cylinder, 14 push rod, 15 variable resistance mechanism, 151 warehouse body, 152 second slider, 153 connecting rod, 154 resistance rod, 155 conductive sleeve, 16 dust suppression mechanism, 161 dust collector, 162 telescopic bellows, 163 dust suction hole, 17 PLC controller, 18 telescopic shielding piece, 19 discharge pipe, 20 receiving box, 21 feed port. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] like Figures 1-6 As shown, a feed processing crushing device includes a bracket 1, a shell 2, a crushing motor 3, a large pulley 4, a crushing roller 5, a small pulley 6 and a transmission belt 7. The shell 2 and the crushing motor 3 are both arranged on the bracket 1, the large pulley 4 is fixedly arranged on the output shaft of the crushing motor 3, the crushing roller 5 is located inside the shell 2, and the rotating shaft of the crushing roller 5 is fixedly connected to the small pulley 6. The large pulley 4 and the small pulley 6 are connected by a transmission belt 7. A discharge pipe 19 is provided at the bottom of the shell 2, and a receiving box 20 is fixedly provided at the bottom of the bracket 1 and below the discharge pipe 19. When the crushing motor 3 works according to the set power, it can drive the large pulley 4 to rotate, and the large pulley 4 drives the small pulley 6 to rotate through the transmission belt 7, so that the crushing roller 5 rotates inside the shell 2 and performs a crushing operation. The crushed feed automatically falls into the inside of the discharge pipe 19 and then falls and is collected in the inside of the receiving box 20. It also includes:

[0034] The feed hopper 8 is fixedly arranged on the top of the shell 2. The top of the feed hopper 8 adopts a closed structure, and a feed port 21 is provided on one side of the feed hopper 8. Such a design can reduce the small amount of dust generated during the screening process from being scattered outward. The interior of the feed hopper 8 is fixedly inclined with a multi-stage filter screen 9, and the multi-stage filter screen 9 is arranged to be inclined downward from left to right.

[0035] A plurality of feed detection mechanisms 10 are fixedly arranged inside the feed hopper 8, and the plurality of feed detection mechanisms 10 are distributed in a one-to-one correspondence with the different mesh positions of the multi-stage filter 9. The feed detection mechanism 10 includes a detection box 101 fixedly arranged on the inner wall of the feed hopper 8, a first slider 102 is provided in the detection box 101 for vertical sliding, a spring 103 is fixed between the bottom of the first slider 102 and the bottom of the detection box 101, an extrusion rod 104 is fixed on the top of the first slider 102, the upper end of the extrusion rod 104 extends to the top of the detection box 101 and is fixed with an extrusion plate 105, and the extrusion plate 105 It is set up tilted, and the area of the squeezing plate 105 is smaller than the area of each level of the multi-stage filter 9. A fixing seat 106 is fixed on the inner wall of the detection box 101 and located below the first slider 102. A touch switch 107 is fixed on the top of the fixing seat 106. When the feed falls on the surface of the squeezing plate 105 below, it can cause a downward impact force on the squeezing plate 105, so that the squeezing plate 105 drives the squeezing rod 104 to move downward. When the squeezing rod 104 moves downward, it drives the first slider 102 to overcome the elastic force of the spring 103 and move downward until the bottom of the first slider 102 contacts the button of the touch switch 107.

[0036] The crushing seat 11 is arranged inside the shell 2, and the crushing seat 11 is located on one side of the crushing roller 5. The outer wall of the shell 2 is fixedly provided with an L-shaped fixing plate 12, and the side wall of the L-shaped fixing plate 12 is fixedly provided with a hydraulic cylinder 13. The movable end of the hydraulic cylinder 13 is fixedly provided with a push rod 14, and the push rod 14 extends to the inside of the shell 2 away from one end of the hydraulic cylinder 13 and is fixedly connected to the side wall of the crushing seat 11. The extension of the hydraulic cylinder 13 can drive the push rod 14 to move toward the inside of the shell 2, so that the end of the push rod 14 pushes the crushing seat 11 to move toward the direction of the crushing roller 5, and the distance between the crushing roller 5 and the crushing seat 11 can be adjusted; the crushing seat 11 adopts a blade-shaped structure, and a telescopic shielding piece 18 is fixed on the top of the crushing seat 11, and the telescopic shielding piece 18 is fixedly connected to the inner side wall of the shell 2 at one end away from the crushing seat 11. During the movement of the crushing seat 11, the distance between the inner wall of the shell 2 will increase, and the telescopic shielding piece 18 can block this gap to prevent feed from entering, thereby improving the crushing effect.

[0037] The variable resistance mechanism 15 is fixedly arranged inside the L-shaped fixed plate 12, and the variable resistance mechanism 15 is connected to the rod wall of the push rod 14. The variable resistance mechanism 15 includes a warehouse body 151 fixedly arranged on the L-shaped fixed plate 12, and a second slider 152 is provided for sliding horizontally inside the warehouse body 151. A connecting rod 153 is fixed on one side of the second slider 152. The end of the connecting rod 153 away from the second slider 152 extends to the outside of the warehouse body 151 and is fixedly connected to the rod wall of the push rod 14. A resistance rod 154 is fixed horizontally inside the warehouse body 151, and a conductive sleeve 155 is fixed inside the second slider 152, and the conductive sleeve 155 is slidably connected to the resistance rod 154. When the push rod 14 moves, it drives the connecting rod 153 to move together, so that the end of the connecting rod 153 drives the second slider 152 to move inside the warehouse body 151. When the second slider 152 moves, it drives the conductive sleeve 155 to move on the resistance rod 154, so that the resistance value of the resistance rod 154 connected to the circuit is reduced.

[0038] The dust suppression mechanism 16 is arranged on the outer wall of the shell 2 and the inside of the crushing seat 11. The dust suppression mechanism 16 includes a dust collector 161 fixedly arranged on the outer wall of the shell 2. The input end of the dust collector 161 is fixedly provided with a telescopic bellows 162, and the end of the telescopic bellows 162 away from the dust collector 161 is fixedly connected to the crushing seat 11. The crushing seat 11 adopts a hollow structure, and a plurality of evenly distributed dust suction holes 163 are provided at the bottom of the crushing seat 11. When the dust collector 161 is working, the telescopic bellows 162 sucks air into the interior of the crushing roller 5, so that a negative pressure is generated inside the crushing seat 11, so that the dust gas generated during the crushing process can be sucked into the interior of the crushing seat 11 through the dust suction holes 163 at the bottom, and then sucked into the interior of the dust collector 161 through the telescopic bellows 162 for treatment, so as to avoid the phenomenon that dust is discharged with the feed and causes environmental pollution.

[0039] The PLC controller 17 is fixedly mounted on the side wall of the L-shaped fixing plate 12 . The grinding motor 3 , the feed detection mechanism 10 , the variable resistance mechanism 15 and the dust suppression mechanism 16 are all electrically connected to the PLC controller 17 .

[0040] The operating principle of the present invention is described as follows: the staff transports the feed to the inside of the feed port 21 through the conveying device, so that the feed falls into the inside of the feed port 21. When the feed falls, it first contacts the upward inclined end of the multi-stage filter 9. As the feed rolls on the surface of the multi-stage filter 9 and passes through the filter mesh holes of multiple specifications in sequence, when the feed rolls to the filter mesh hole of the appropriate size, it will automatically fall, thereby automatically completing the screening of different types of feed. When different types of feed fall on the surface of the corresponding squeezing plate 105 below, it can cause the squeezing plate 105 to The downward impact force causes the squeezing plate 105 to drive the squeezing rod 104 to move downward. When the squeezing rod 104 moves downward, it drives the first slider 102 to overcome the elastic force of the spring 103 and move downward until the bottom of the first slider 102 contacts the button of the touch switch 107. When the touch switch 107 is triggered, it will feedback an electrical signal to the PLC controller 17 (the touch switch 107 is mechanical, relying on the internal reed and contact action. It is normally open or normally closed when not triggered. When triggered, the contact changes state to make the circuit conductive, and the electrical signal formed by the current is transmitted to the PLC controller 17 through the line). Control), the PLC controller 17 controls the grinding motor 3 to work at a certain power according to the pre-set program. At this time, the initial power setting of the grinding motor 3 is completed. Since the mesh diameter of the multi-stage filter 9 is set to increase from left to right, different types of feed are screened by the mesh of the multi-stage filter 9 and fall. Here, the feed detection mechanism 10 below the multi-stage mesh controls the grinding motor 3 to work at different powers, and the multiple feed detection mechanisms 10 trigger the power size of the grinding motor 3 to increase from left to right. When the grinding motor 3 works according to the set power, it can drive The large pulley 4 rotates, and the large pulley 4 drives the small pulley 6 to rotate through the transmission belt 7, so that the crushing roller 5 rotates inside the housing 2 and cooperates with the crushing seat 11, which can ensure that the feed is crushed between the crushing seat 11 and the crushing roller 5. The crushed feed falls through the discharge pipe 19 and is collected in the receiving box 20. The whole process can adaptively control the power of the crushing motor 3 according to the particle size of different types of feed. The larger the feed particles, the greater the power of the crushing motor 3, and the smaller the feed particles, the smaller the power of the crushing motor 3, thereby avoiding energy waste and reducing production costs.

[0041] After different types of feed are identified and the initial power setting of the crushing motor 3 is completed, the PLC controller 17 will also control the hydraulic cylinder 13 to work. The extension of the hydraulic cylinder 13 can drive the push rod 14 to move toward the inside of the shell 2, so that the end of the push rod 14 pushes the crushing seat 11 to move toward the crushing roller 5, thereby adjusting the distance between the crushing roller 5 and the crushing seat 11, so that it can be adjusted according to the target crushing particle size of different types of feed. As the push rod 14 moves, and the degree of movement is different, the push rod 14 will drive the connecting rod 153 to move together, so that the end of the connecting rod 153 drives the second slider 152 to move inside the warehouse body 151, and the second slider 152 drives the conductive sleeve 155 to move on the resistance rod 154 when moving, so that The resistance of the resistor rod 154 connected to the circuit decreases. At the same time, the current in the same circuit of the resistor rod 154 and the grinding motor 3 increases, thereby increasing the power of the grinding motor 3 and completing the second power setting for the grinding motor 3. The smaller the particle size of the feed to be crushed, the smaller the distance between the grinding roller 5 and the grinding seat 11, and the greater the distance the push rod 14 is pushed, the greater the distance the connecting rod 153 drives the second slider 152 to move, thereby making the conductive sleeve 155 move a greater distance on the resistor rod 154, making the resistance of the resistor rod 154 smaller, and thus automatically increasing the power of the grinding motor 3. The whole process can adaptively adjust the power of the grinding motor 3 according to the required target particle size, avoiding energy waste and reducing production costs.

[0042] During the pulverizing process, dust is generated due to the cooperation between the pulverizing roller 5 and the pulverizing seat 11. When the pulverizing motor 3 is turned on, the PLC controller 17 also controls the start of the dust collector 161. The dust collector 161 sucks air from the inside of the pulverizing roller 5 through the telescopic bellows 162, so that negative pressure is generated inside the pulverizing seat 11. As a result, the dust gas generated during the pulverizing process can be sucked into the inside of the pulverizing seat 11 through the dust suction holes 163 at the bottom, and then sucked into the inside of the dust collector 161 through the telescopic bellows 162 for treatment, thereby preventing the dust from being discharged along with the feed and causing environmental pollution.

[0043] When the same type of feed is crushed, the smaller the target particle size, the greater the dust generated (a smaller crushing particle size means that the particles are easier to disperse. During the crushing operation, these fine particles are more easily driven by the airflow, forming a dust flying phenomenon). The smaller the target crushing particle size, the smaller the required spacing between the crushing roller 5 and the crushing seat 11, and the greater the distance the push rod 14 is pushed. At this time, the connecting rod 153 drives the second slider 152 to move a greater distance, thereby making the conductive sleeve 155 move a greater distance on the resistance rod 154 and gradually reducing the resistance value of the resistance rod 154. At this time, the current connected to the same circuit of the vacuum cleaner 161 and the resistance rod 154 is greater, thereby increasing the power of the vacuum cleaner 161 and improving the dust suction effect. Conversely, the larger the target crushing particle size, the smaller the dust generated. At this time, the power of the vacuum cleaner 161 can be reduced to avoid energy waste.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pulverizing device for feed processing, comprising a bracket (1), a housing (2), a pulverizing motor (3), a large pulley (4), a pulverizing roller (5), a small pulley (6) and a transmission belt (7), wherein the housing (2) and the pulverizing motor (3) are both arranged on the bracket (1), the large pulley (4) is fixedly arranged on the output shaft of the pulverizing motor (3), the pulverizing roller (5) is located inside the housing (2), and the rotating shaft of the pulverizing roller (5) is fixedly connected to the small pulley (6), and the large pulley (4) and the small pulley (6) are connected by a transmission belt (7), characterized in that: Also includes: A feed hopper (8) is fixedly arranged on the top of the housing (2), and a multi-stage filter screen (9) is fixedly arranged inside the feed hopper (8) at an angle, and the multi-stage filter screen (9) is arranged to be tilted downward from left to right, and the mesh diameters of the multi-stage filter screen (9) are arranged to increase in sequence from left to right; A plurality of feed detection mechanisms (10) are fixedly arranged inside the feed hopper (8), and the plurality of feed detection mechanisms (10) are distributed and arranged in a one-to-one correspondence with different mesh positions of the multi-stage filter (9). The plurality of feed detection mechanisms (10) trigger and control the power of the grinding motor (3) to increase from left to right. The feed detection mechanism (10) includes a detection box (101) fixedly arranged on the inner wall of the feed hopper (8), and a first slider (102) is provided in the interior of the detection box (101) for vertical sliding. A spring (103) is fixed between the bottom of the first slider (102) and the bottom of the detection box (101); an extrusion rod (104) is fixed to the top of the first slider (102); the upper end of the extrusion rod (104) extends to the top of the detection box (101) and is fixed with an extrusion plate (105); a fixing seat (106) is fixed to the inner side wall of the detection box (101) and located below the first slider (102); a touch switch (107) is fixed to the top of the fixing seat (106); A crushing seat (11) is arranged inside the shell (2), and the crushing seat (11) is located on one side of the crushing roller (5); an L-shaped fixing plate (12) is fixedly provided on the outer wall of the shell (2); a hydraulic cylinder (13) is fixedly provided on the side wall of the L-shaped fixing plate (12); a push rod (14) is fixedly provided on the movable end of the hydraulic cylinder (13); an end of the push rod (14) away from the hydraulic cylinder (13) extends into the interior of the shell (2) and is fixedly connected to the side wall of the crushing seat (11); A variable resistance mechanism (15) is fixedly arranged inside the L-shaped fixed plate (12), and the variable resistance mechanism (15) is connected to the rod wall of the push rod (14); A dust suppression mechanism (16) is arranged on the outer wall of the housing (2) and inside the crushing seat (11); The PLC controller (17) is fixedly mounted on the side wall of the L-shaped fixed plate (12), and the grinding motor (3), the feed detection mechanism (10), the variable resistance mechanism (15) and the dust suppression mechanism (16) are all electrically connected to the PLC controller (17).

2. A feed processing crushing device according to claim 1, characterized in that: The extrusion plate (105) is arranged at an angle, and the area of the extrusion plate (105) is smaller than the area of each stage of the multi-stage filter screen (9).

3. A feed processing crushing device according to claim 1, characterized in that: The variable resistance mechanism (15) comprises a chamber body (151) fixedly arranged on the L-shaped fixed plate (12); a second slider (152) is provided in a transversely sliding manner inside the chamber body (151); a connecting rod (153) is fixedly provided on one side of the second slider (152); an end of the connecting rod (153) away from the second slider (152) extends to the outside of the chamber body (151) and is fixedly connected to the rod wall of the push rod (14); a resistance rod (154) is fixedly provided in a transversely fixed manner inside the chamber body (151); a conductive sleeve (155) is fixedly provided inside the second slider (152), and the conductive sleeve (155) is slidably connected to the resistance rod (154).

4. A feed processing pulverizing device according to claim 1, characterized in that: The dust suppression mechanism (16) comprises a dust collector (161) fixedly arranged on the outer side wall of the housing (2); a telescopic bellows (162) is fixedly arranged at the input end of the dust collector (161); and an end of the telescopic bellows (162) away from the dust collector (161) is fixedly connected to the pulverizing seat (11); the pulverizing seat (11) has a hollow structure, and a plurality of evenly distributed dust suction holes (163) are provided at the bottom of the pulverizing seat (11).

5. A feed processing pulverizing device according to claim 1, characterized in that: The pulverizing seat (11) adopts a blade-shaped structure, a telescopic shielding piece (18) is fixedly provided on the top of the pulverizing seat (11), and an end of the telescopic shielding piece (18) away from the pulverizing seat (11) is fixedly connected to the inner side wall of the shell (2).

6. A feed processing pulverizing device according to claim 1, characterized in that: A discharge pipe (19) is provided at the bottom of the housing (2), and a receiving box (20) is fixedly provided at the bottom of the bracket (1) and below the discharge pipe (19).

7. A feed processing pulverizing device according to claim 1, characterized in that: The top of the feed hopper (8) adopts a closed structure, and a feed port (21) is provided on one side of the feed hopper (8).

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