Raw material crushing device for feed production

Abstract

The invention relates to the technical field of feed crushing, and discloses a raw material crushing device for feed production. The crushing assembly is used for crushing and filtering the feed raw materials; the receiving box is used for receiving the feed crushed by the crushing assembly; the material receiving box is installed on the machine body, and the smashing assembly is fixedly installed on the machine body. The smashing assembly comprises a fixing box, and a grinding and cutting device, a quantifying device and a filtering device are arranged on the fixing box. According to the raw material crushing device for feed production, through the arranged crushing assembly, quantitative feeding of raw materials for feed production can be achieved, relative pressurized grinding and crushing are achieved, and compared with stirring and crushing in a traditional mode, the grinding and crushing mode is better in crushing effect, so that the crushed raw materials are finer and smoother; and the overall principle is similar to'two-hand staggered rubbing ', so that quantitative feeding of the raw materials to hedging type extrusion, cutting and crushing is achieved, and the overall crushing effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of feed crushing, in particular to a raw material crushing device for feed production. Background Art

[0002] The main function of a feed grinder is to grind feed to facilitate digestion and improve digestibility. The grinding of feed raw materials is a very important part of feed processing. The degree of feed grinding is directly related to the digestibility of animals. With the development of the economy, people's requirements for feed grinders are getting higher and higher.

[0003] When the current feed grinder grinds the feed, the traditional method uses a cutting knife to directly cut and grind the feed. The grinding method has uneven particle texture. At the same time, the raw materials are directly put into the grinder in the traditional method. If the grinder is put into too much raw materials at one time, the load of the equipment is large, and it will also be accompanied by uneven cutting and grinding. In addition, when the feed is directly put into the feed grinding barrel, the feed stays on the grinding blade for a short time, resulting in poor cutting effect. At the same time, the required particle size cannot be adjusted according to the needs. Therefore, a raw material grinding device for feed production is proposed to solve the above-mentioned problems. Summary of the invention

[0004] In view of the deficiencies of the prior art, the present invention provides a raw material crushing device for feed production, which solves the problem that the prior art crushing of feed raw materials is too single, resulting in poor crushing effect and uneven texture.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a raw material crushing device for feed production, comprising a machine body; a crushing component, used for crushing and filtering feed raw materials; a receiving box, used for receiving feed crushed by the crushing component; the receiving box is installed on the machine body, and the crushing component is fixedly installed on the machine body; the crushing component includes a fixed box, and the fixed box is provided with a grinding and cutting device, a quantitative device and a filtering device, and the fixed box is installed with a feeding rack; the grinding and cutting device quantitatively feeds the feed raw materials through the quantitative device while performing rotary grinding and crushing on the feed, and the filtering device filters the crushed feed raw materials.

[0006] Preferably, the grinding and cutting device includes a slide seat, a push rod is fixedly connected to the right side of the slide seat, the end of the push rod away from the slide seat is fixedly connected to a driving member, the driving member is fixed inside the machine body, a spiral rod is rotatably connected to the slide seat, the end of the spiral rod away from the slide seat is connected to a grinding disc through an extrusion member, a plurality of blades are arranged on the side of the grinding disc, a fixing pin is fixedly connected to the inside of the fixed box, and the fixing pin is slidably connected to a spiral groove opened on the spiral rod.

[0007] Preferably, the extrusion piece includes a circular sleeve, one end of the circular sleeve away from the spiral rod is fixed on the grinding disc, the interior of the circular sleeve is slidably connected to a connecting seat via a keyway, one end of the connecting seat is fixedly connected to the spiral rod, the other end of the connecting seat is connected to a connecting spring, and the connecting spring is located inside the circular sleeve.

[0008] Preferably, two of the grinding disc, spiral rod and slide are provided, and relative tooth plates are fixedly connected to the two slides, a central gear is meshed in the middle of the two relative tooth plates, and the central gear is rotatably connected to the machine body, and the spiral grooves on the two spiral rods are respectively a left-handed structure and a right-handed structure.

[0009] Preferably, the dosing device includes a transmission gear, and the upper and lower positions of the transmission gear are respectively meshed with a fixed plate and a baffle plate, the baffle plate is slidably connected in the feed rack, the fixed plate is slidably connected inside the fixed box, the bottom of the fixed plate is fixedly connected with a spacer, and the left side of the spacer is fixedly connected to the grinding disc.

[0010] Preferably, the filtering device includes a filter sleeve, the filter sleeve is provided with holes and grooves for filtering feed raw materials, the filter sleeve is rotatably connected to the inside of the fixed box, a slide groove is provided on the inner wall of the filter sleeve, one of the grinding discs is provided with a key bar, the key bar is slidably connected to the slide groove, and an adjustment device is provided inside the filter sleeve for adjusting the size of the hole groove.

[0011] Preferably, the adjusting device includes a bearing ring, which is rotatably connected to the filter plate, the side of the bearing ring away from the grinding disc is connected to an adjusting rod through a guide rod, the inside of the adjusting rod is slidably connected to a positioning cone, the bottom of the positioning cone is connected to a compression spring, three slots matching the positioning cone are provided inside the fixed box, the side of the bearing ring close to the grinding disc is fixedly connected to the filter plate, and the filter plate is slidably connected to the inside of the filter sleeve through a key slot.

[0012] Preferably, a discharging device is also included, which includes a push plate, a connecting rod is connected to the right side of the push plate, the end of the connecting rod away from the push plate is connected to the blocking plate, the push plate is slidably connected to the surface of the filter sleeve, and a material guide rack is installed at the bottom of the fixed box.

[0013] Preferably, a telescopic sleeve made of rubber is fixedly connected to one side of the push plate close to the connecting rod, and one end of the telescopic sleeve close to the blocking plate is connected to the fixed box.

[0014] Compared with the prior art, the present invention provides a raw material crushing device for feed production, which has the following beneficial effects: 1. The raw material crushing device for feed production can realize quantitative input of raw materials for feed production and relative pressurized grinding and crushing through the provided crushing components. Compared with the traditional stirring and crushing method, this grinding and crushing method has better crushing effect, making the crushed raw materials more delicate. The overall principle is similar to "interlaced kneading with both hands", so as to achieve quantitative input of raw materials into counter-extrusion cutting and crushing, thereby improving the overall crushing effect.

[0015] 2. The raw material crushing device for feed production can screen and filter the crushed raw materials through the provided filtering device, so that the raw materials that meet the size are screened out. Even if there are raw materials with larger sizes that are not evenly cut, they will still remain inside the filter sleeve for repeated crushing. In addition, the holes and slots of the filter sleeve can be adjusted by the adjusting mechanism to control the screening size in turn, which is convenient for screening different types of feed raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a raw material crushing device for feed production proposed by the present invention; Figure 2 This is a schematic diagram of the structure of a crushing component of a raw material crushing device for feed production proposed by the present invention; Figure 3 This is a schematic diagram of the connection structure of a quantitative device and a grinding and cutting device of a raw material crushing device for feed production proposed by the present invention; Figure 4 For the present invention Figure 3 The enlarged schematic diagram at A in the middle; Figure 5 This is a schematic diagram of the internal structure of two grinding discs of a raw material crushing device for feed production proposed by the present invention in a filter sleeve; Figure 6 This is a schematic diagram of the structure of a filtering device of a raw material crushing device for feed production proposed by the present invention; Figure 7 For the present invention Figure 6 The enlarged structural diagram at B in the middle; Figure 8 This is a schematic structural diagram of a discharging device of a raw material crushing device for feed production proposed by the present invention.

[0017] In the figure: 1. body; 2. crushing assembly; 21. fixed box; 211. slide seat; 212. push rod; 213. screw rod; 214. grinding disc; 215. round sleeve; 216. connecting seat; 217. connecting spring; 218. spacer sleeve; 219. fixing pin; 22. feeding rack; 23. grinding and cutting device; 24. quantitative device; 241. fixed plate; 242. transmission gear; 243. baffle plate; 25. filtering device; 251. filter sleeve; 252. filter plate; 253. bearing ring; 254. guide rod; 255. positioning cone; 256. slot; 257. compression spring; 258. adjusting rod; 26. discharging device; 261. push plate; 262. telescopic sleeve; 263. connecting rod; 264. guiding rack; 3. receiving box; 4. center gear; 5. relative gear plate. DETAILED DESCRIPTION

[0018] 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.

[0019] See also Figure 1-Figure 8 A raw material crushing device for feed production, comprising a body 1; a crushing component 2, used for crushing and filtering feed raw materials; a receiving box 3, used for receiving feed crushed by the crushing component 2; the receiving box 3 is installed on the body 1, and the crushing component 2 is fixedly installed on the body 1; the crushing component 2 includes a fixed box 21, on which a grinding and cutting device 23, a quantitative device 24 and a filtering device 25 are provided, and a feeding rack 22 is installed on the fixed box 21; the grinding and cutting device 23 quantitatively feeds feed raw materials through the quantitative device 24 while performing rotary grinding and crushing on the feed, and the filtering device 25 filters the crushed feed raw materials.

[0020] In this embodiment, the grinding and cutting device 23 includes a slide 211, a push rod 212 is fixedly connected to the right side of the slide 211, and the end of the push rod 212 away from the slide 211 is fixedly connected to a driving member, and the driving member is fixed inside the machine body 1. A spiral rod 213 is rotatably connected to the slide 211, and the end of the spiral rod 213 away from the slide 211 is connected to a grinding disc 214 through an extrusion member, and a plurality of blades are arranged on the side of the grinding disc 214. A fixing pin 219 is fixedly connected to the inside of the fixed box 21, and the fixing pin 219 is slidably connected to a spiral groove opened on the spiral rod 213. The extrusion member includes a round sleeve 215, one end of the round sleeve 215 away from the spiral rod 213 is fixed on the grinding disc 214, and the inside of the round sleeve 215 is slidably connected with a connecting seat 216 through a keyway, one end of the connecting seat 216 is fixedly connected to the spiral rod 213, and the other end of the connecting seat 216 is connected to a connecting spring 217. By using the provided connecting spring 217, the two grinding discs 214 are elastically extruded when they are relatively extruded, so as to avoid solid particles inside the equipment, which may cause the blade of the equipment to be damaged by rotation, extrusion, and the connecting spring 217 is located inside the round sleeve 215. When the top rod 212 is pushed by the driving member, it will drive the lateral movement of the sliding seat 211, and then drive the spiral rod 213 to slide inside the fixed box 21. By using the lateral movement of the spiral rod 213, the raw materials are extruded and the raw materials are also subjected to rotary grinding and crushing. The whole is inspired by the artificial "interlaced kneading of both hands" to make a kneading-type cutting when relatively extruded, so that the overall crushing effect of the raw materials is better. There are two grinding discs 214, two spiral rods 213 and two slides 211, and two slides 211 are fixedly connected with relative tooth plates 5, and the middle parts of the two relative tooth plates 5 are meshed with central gears 4, and the central gear 4 is rotatably connected to the machine body 1. The spiral grooves on the two spiral rods 213 are respectively a left-handed structure and a right-handed structure. Because the directions of the spiral grooves are different, when the two grinding discs 214 slide relative to each other, the two grinding discs 214 will be driven to rotate in opposite directions at the same time, so that the raw materials inside are kneaded in an interlaced manner, and the blades are used for interlaced cutting and rotational crushing.

[0021] Furthermore, the metering device 24 includes a transmission gear 242, and the upper and lower positions of the transmission gear 242 are respectively meshed with a fixed plate 241 and a blocking plate 243, the blocking plate 243 is slidably connected in the feed rack 22, the fixed plate 241 is slidably connected to the inside of the fixed box 21, and the bottom of the fixed plate 241 is fixedly connected with a spacer sleeve 218, and the left side of the spacer sleeve 218 is fixedly connected to the grinding disc 214. By sliding the slide 211 to the right laterally, the fixed plate 241 is driven to move backward through the connection of the spacer sleeve 218, and the relative meshing transmission of the gears is used to drive the blocking plate 243 to move to the left, so as to cut off the feed port position of the feed rack 22. When the grinding disc 214 moves to the right to the extreme position, the raw materials below the cut-off will enter the internal crushing space of the fixed box 21 along the connecting channel. When the relative extrusion of the slide 211 is controlled, the grinding disc 214 will be used to push it back into the interior of the filter device 25. At this time, the spacer sleeve 218 will be blocked at the bottom of the feed rack 22 again, because the blocking plate 243 will move to the right at this time to discharge the material and be carried on the top of the spacer sleeve 218, so as to realize quantitative feeding.

[0022] Furthermore, the filter device 25 includes a filter sleeve 251, on which a hole groove for filtering feed raw materials is provided, the filter sleeve 251 is rotatably connected to the inside of the fixed box 21, a slide groove is provided on the inner wall of the filter sleeve 251, a key bar is provided on one of the grinding discs 214, the key bar is slidably connected to the slide groove, and an adjustment device is provided inside the filter sleeve 251 for adjusting the size of the hole groove. During the rotation of the grinding disc 214, the sliding connection between the key bar and the filter sleeve 251 can also drive the rotation of the filter sleeve 251, thereby achieving the effect of rolling screening of the raw materials in the filter sleeve 251, so that the crushed qualified raw materials will flow out from the hole groove inside the filter sleeve 251 for collection and processing.

[0023] In addition, the adjusting device includes a bearing ring 253, which is rotatably connected to the filter plate 252. The side of the bearing ring 253 away from the grinding disc 214 is connected to the adjusting rod 258 through the guide rod 254. The inside of the adjusting rod 258 is slidably connected to the positioning cone 255, and the bottom of the positioning cone 255 is connected to the compression spring 257. Three slots 256 cooperating with the positioning cone 255 are provided inside the fixed box 21. The side of the bearing ring 253 close to the grinding disc 214 is fixedly connected to the filter plate 252, and the filter plate 252 is slidably connected to the inside of the filter sleeve 251 through a key groove. Because the required size of each raw material is different, if the hole position of the filter sleeve 251 remains unchanged, the equipment can only screen and discharge materials of fixed size, so an adjustment device is set up. The operator controls the adjustment rod 258 to move right, and moves the positioning cone 255 therein horizontally to the slot 256 at a different position. At this time, the guide rod 254 will synchronously push the bearing ring 253 to move, thereby driving the lateral movement of the filter plate 252. The holes and grooves synchronously set on the filter plate 252 and the filter sleeve 251 use a staggered sliding connection to control the aperture of the filter sleeve 251. When the holes and grooves on the filter plate 252 coincide with the holes and grooves on the filter sleeve 251, it means that the size is maximum, so the operator adjusts according to actual needs.

[0024] In addition, a discharging device 26 is also included, which includes a push plate 261, a connecting rod 263 is connected to the right side of the push plate 261, and the end of the connecting rod 263 away from the push plate 261 is connected to the blocking plate 243. The push plate 261 is slidably connected to the surface of the filter sleeve 251, and a guide rack 264 is installed at the bottom of the fixed box 21. When the blocking plate 243 moves horizontally, the push plate 261 will be driven to move horizontally through the connection of the connecting rod 263. At this time, the crushed raw materials falling inside the fixed box 21 will be pushed out, and then discharged from the position of the guide rack 264 into the inside of the receiving box 3. A rubber telescopic sleeve 262 is fixedly connected to the side of the push plate 261 close to the connecting rod 263, and the end of the telescopic sleeve 262 close to the blocking plate 243 is connected to the fixed box 21. The telescopic sleeve 262 is provided with a telescopic effect, because it is necessary to ensure that when the push plate 261 moves horizontally, the raw materials inside the filter sleeve 251 cannot fall to the right side of the push plate 261, otherwise the crushed raw materials cannot be pushed out. Therefore, when the push plate 261 is pushed out, the telescopic sleeve 262 will also extend synchronously to seal the filter sleeve 251 as a whole.

[0025] The working principle is that first, mechanical equipment is needed to put the raw materials into the feed rack 22, and then control the action of the driving part. The driving part in this technical solution is a power part belonging to the category of air cylinder and oil cylinder, and of course it also includes the driving method of the motor. As long as the driving push rod 212 is driven to perform a cyclic left and right movement, when the push rod 212 is pushed by the driving part, it will drive the lateral movement of the slide seat 211, and then drive the screw rod 213 to slide inside the fixed box 21, and use the fixed pin 219 to slide on the screw rod 213. At this time, when the screw rod 213 moves laterally, it will drive the screw rod 213 to rotate, and the screw rod 213 will synchronously drive the connecting seat 216 to rotate, and then use the slide groove connection to drive the circular sleeve 215 and the grinding disc 214 connected thereto to rotate, and when the screw rod 213 is pushed laterally During the movement, the two slides 211 will move relative to each other through the relative tooth plates 5 connected to the slide 211 and the mutual meshing of the central gear 4, thereby driving the two grinding discs 214 connected to the two spiral rods 213 to rotate. Because the directions of the spiral grooves are different, the two grinding discs 214 will rotate in opposite directions when they slide relative to each other, thereby interlacingly kneading the raw materials inside, and interlacingly cutting and rotating the raw materials with the blades. At the same time, the two grinding discs 214 are in elastic compression when they are relatively squeezed by the provided connection spring 217, so as to avoid the occurrence of solid particles inside the equipment, which will cause the blades of the equipment to rotate and squeeze and break. After that, the crushed raw materials will fall into the interior of the fixed box 21 through the holes on the filter sleeve 251. In the process of the rotation of the grinding disc 214, the sliding connection between the key bar and the filter sleeve 251 can also drive the rotation of the filter sleeve 251, thereby achieving the effect of rolling screening of the raw materials in the filter sleeve 251. Then, as the slide 211 is reset and slides in the opposite direction, the fixed plate 241 is driven to move backward through the connection of the spacer sleeve 218, and the relative meshing transmission of the gears is used to drive the blocking plate 243 to move left, thereby cutting off the feed port position of the feed rack 22. When the grinding disc 214 moves to the right to the extreme position, the raw materials below the cut-off will enter the internal crushing space of the fixed box 21 along the connecting channel. When the relative extrusion of the slide 211 is controlled, the grinding disc 214 will be used to push it back into the interior of the filter device 25. At this time, the spacer sleeve 218 will be blocked at the bottom of the feed rack 22 again, because the blocking plate 243 will move to the right at this time to discharge the material and be carried on the top of the spacer sleeve 218, thereby realizing quantitative feeding.When the blocking plate 243 moves laterally, the push plate 261 will be driven to move laterally through the connection of the connecting rod 263. At this time, the crushed raw materials that fall into the fixed box 21 will be pushed out, and then discharged from the position of the material guide rack 264 into the interior of the receiving box 3. The telescopic sleeve 262 is provided with a telescopic effect, because it is necessary to ensure that when the push plate 261 moves laterally, the raw materials inside the filter sleeve 251 cannot fall to the right side of the push plate 261, otherwise the crushed raw materials cannot be pushed out. Therefore, when the push plate 261 is pushed out, the telescopic sleeve 262 will also extend synchronously to close the filter sleeve 251 as a whole. At the same time, considering that the required size of each raw material is different, if the hole position of the filter sleeve 251 remains unchanged, the equipment can only screen and discharge materials of a fixed size, so an adjustment device is provided. When it is necessary to control the aperture of the screening, it is only necessary to control the adjustment rod 258 to move right and move the positioning cone 255 therein horizontally to the slot 256 at a different position. At this time, the guide rod 254 will synchronously push the bearing ring 253 to move, thereby driving the lateral movement of the filter plate 252. The holes and slots synchronously arranged on the filter plate 252 and the filter sleeve 251 control the aperture of the filter sleeve 251 by means of a staggered sliding connection. When the holes and slots on the filter plate 252 coincide with the holes and slots on the filter sleeve 251, it represents the maximum size. Therefore, the operator adjusts and controls according to actual needs. Although the filter sleeve 251 is in a rotating state, the filter sleeve 251 will also synchronously drive the filter plate 252 to rotate by means of a keyway connection, so as to achieve the effect of rotation synchronization, and the filter plate 252 can only be adjusted horizontally and staggered.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

Claims

1. A raw material crushing device for feed production, characterized in that: include Body (1); A crushing component (2), used for crushing and filtering feed raw materials; A receiving box (3) for receiving the feed crushed by the crushing component (2); The material receiving box (3) is mounted on the machine body (1), and the crushing assembly (2) is fixedly mounted on the machine body (1); The pulverizing assembly (2) comprises a fixed box (21), on which a grinding and cutting device (23), a dosing device (24) and a filtering device (25) are arranged, and a feeding rack (22) is installed on the fixed box (21); The grinding and cutting device (23) quantitatively feeds the feed raw materials through the quantitative device (24) and simultaneously performs rotary grinding and crushing on the feed, and the filtering device (25) filters the crushed feed raw materials.

2. The raw material crushing device for feed production according to claim 1, characterized in that: The grinding and cutting device (23) comprises a slide seat (211), a push rod (212) is fixedly connected to the right side of the slide seat (211), one end of the push rod (212) away from the slide seat (211) is fixedly connected to a driving member, and the driving member is fixed inside the machine body (1); a spiral rod (213) is rotatably connected to the slide seat (211), one end of the spiral rod (213) away from the slide seat (211) is connected to a grinding disc (214) via an extrusion member, and a plurality of blades are arranged on the side of the grinding disc (214); a fixing pin (219) is fixedly connected to the inside of the fixing box (21), and the fixing pin (219) is slidably connected to a spiral groove provided on the spiral rod (213).

3. The raw material crushing device for feed production according to claim 2, characterized in that: The extrusion component comprises a round sleeve (215), one end of the round sleeve (215) away from the spiral rod (213) is fixed on the grinding disc (214), the interior of the round sleeve (215) is slidably connected to a connecting seat (216) via a keyway, one end of the connecting seat (216) is fixedly connected to the spiral rod (213), the other end of the connecting seat (216) is connected to a connecting spring (217), and the connecting spring (217) is located inside the round sleeve (215).

4. The raw material crushing device for feed production according to claim 3, characterized in that: The grinding disc (214), the spiral rod (213) and the slide seat (211) are each provided with two, and the two slide seats (211) are both fixedly connected with relative tooth plates (5), the middle parts of the two relative tooth plates (5) are meshed with a central gear (4), and the central gear (4) is rotatably connected to the machine body (1), and the spiral grooves on the two spiral rods (213) are respectively a left-handed structure and a right-handed structure.

5. The raw material crushing device for feed production according to claim 4, characterized in that: The quantitative device (24) comprises a transmission gear (242), wherein the transmission gear (242) is respectively meshed with a fixed plate (241) and a blocking plate (243) at upper and lower positions, wherein the blocking plate (243) is slidably connected in the feed frame (22), and the fixed plate (241) is slidably connected in the interior of the fixed box (21), and a spacer sleeve (218) is fixedly connected at the bottom of the fixed plate (241), and the left side of the spacer sleeve (218) is fixedly connected to the grinding disc (214).

6. The raw material crushing device for feed production according to claim 5, characterized in that: The filtering device (25) comprises a filter sleeve (251), the filter sleeve (251) is provided with a hole slot for filtering feed raw materials, the filter sleeve (251) is rotatably connected to the inside of the fixed box (21), a slide slot is provided on the inner wall of the filter sleeve (251), one of the grinding discs (214) is provided with a key bar, the key bar is slidably connected to the slide slot, and an adjustment device is provided inside the filter sleeve (251) for adjusting the size of the hole slot.

7. A raw material crushing device for feed production according to claim 6, characterized in that: The adjusting device comprises a bearing ring (253), the bearing ring (253) being rotatably connected to the filter plate (252), the side of the bearing ring (253) away from the grinding disc (214) being connected to an adjusting rod (258) via a guide rod (254), the interior of the adjusting rod (258) being slidably connected to a positioning cone (255), the bottom of the positioning cone (255) being connected to a compression spring (257), the interior of the fixed box (21) being provided with three slots (256) cooperating with the positioning cone (255), the side of the bearing ring (253) close to the grinding disc (214) being fixedly connected to the filter plate (252), the filter plate (252) being slidably connected to the interior of the filter sleeve (251) via a key slot.

8. The raw material crushing device for feed production according to claim 7, characterized in that: The device also comprises a discharging device (26), the discharging device (26) comprising a push plate (261), a connecting rod (263) being connected to the right side of the push plate (261), an end of the connecting rod (263) away from the push plate (261) being connected to the blocking plate (243), the push plate (261) being slidably connected to the surface of the filter sleeve (251), and a material guide frame (264) being installed at the bottom of the fixed box (21).

9. The raw material crushing device for feed production according to claim 8, characterized in that: A telescopic sleeve (262) made of rubber is fixedly connected to one side of the push plate (261) close to the connecting rod (263), and one end of the telescopic sleeve (262) close to the blocking plate (243) is connected to the fixed box (21).

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