Granulation production process for pet feed production and granulation production equipment thereof

Abstract

The invention discloses a granulation production process and granulation production equipment for pet feed production, and relates to the technical field of granulation production, the granulation production equipment comprises a U-shaped frame and a granulation assembly, a motor is fixedly mounted at the side end of the U-shaped frame, a belt wheel is coaxially connected to the middle of an output shaft of the motor, and a driving umbrella wheel is coaxially connected to the tail end of the output shaft of the motor; the granulating assembly is rotationally mounted below an opening of the U-shaped frame and comprises an inner sleeve, a lower cone pulley, a grinding disc and a gear ring, and the inner sleeve is of a hollow cylindrical structure. In the using process, on one hand, crushing pretreatment is added before the granulating procedure, so that it can be guaranteed that materials reach the uniform fineness after being crushed, the fluidity is improved by cutting the raw materials into smaller particles, and then the blockage risk of a grinding disc is reduced; and on the other hand, the power supply of the crushing process and the granulating process is uniformly provided by the motor, and an additional power mechanism is not needed, so that the structural linkage between the crushing process and the granulating process is improved.

Description

Technical Field

[0001] The invention relates to the technical field of granulation production, in particular to a granulation production process and granulation production equipment for pet feed production. Background Art

[0002] Pet feed is food specially provided for pets and small animals. It is a high-end animal food between human food and traditional livestock and poultry feed. Pet feed is usually made by pelleting equipment. Feed pelletizer belongs to feed pelleting equipment. It is a feed processing machinery that directly presses pellets from crushed materials such as corn, soybean meal, straw, grass, rice husk, etc.

[0003] However, the existing feed pelletizing machines do not crush the materials thoroughly and fully, and there is no screening mechanism. The materials generally cannot reach a uniform fineness after crushing, and the grinding disc is often blocked due to the poor fluidity of the materials. The main manifestation is a decrease in the grinding disc speed and reduced production efficiency. In severe cases, it may cause the equipment to burn out. Traditional technology often requires the equipment to be shut down and the blocked grinding disc to be cleaned manually when the grinding disc is blocked, which is time-consuming and labor-intensive and has low applicability.

[0004] Therefore, in view of this, the existing structural deficiencies are studied and improved, and a granulation production process and granulation production equipment for pet feed production are proposed. Summary of the invention

[0005] The object of the present invention is to provide a granulation production process and granulation production equipment for pet feed production to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a granulation production equipment, comprising a U-shaped frame and a granulation assembly, wherein a motor is fixedly installed on the side end of the U-shaped frame, and a pulley is coaxially connected to the middle part of the motor output shaft, and a driving bevel wheel is coaxially connected to the end of the motor output shaft, and the granulation assembly is rotatably installed below the opening of the U-shaped frame, and the granulation assembly comprises an inner sleeve, a lower cone wheel, a grinding disc and a gear ring, the inner sleeve is a hollow cylindrical structure, and the lower cone wheel is coaxially connected to the bottom of the inner sleeve, the lower cone wheel is rotatably installed below the opening of the U-shaped frame, and the lower cone wheel is toothedly meshed with the side end of the driving bevel wheel for transmission, the top of the inner sleeve is coaxially connected to the grinding disc, and granulation holes are arranged in an array on the surface of the grinding disc, and a gear ring is fixedly installed on the outer edge of the hole in the grinding disc.

[0007] Furthermore, a cutting assembly is rotatably installed above the opening of the U-shaped frame, and the cutting assembly includes an outer sleeve and an upper cone wheel. The outer sleeve is sleeved on the outside of the inner sleeve, and the inner diameter of the outer sleeve is larger than the outer diameter of the inner sleeve. The upper cone wheel is coaxially connected to the bottom of the outer sleeve, and the upper cone wheel is engaged with the teeth on the upper side end of the driving umbrella wheel for transmission.

[0008] Furthermore, the segmenting assembly also includes a segmenting knife, and the segmenting knives are coaxially connected to both sides of the top of the outer sleeve, and the segmenting knives are arranged in contact with the bottom plane of the grinding disc.

[0009] Furthermore, an extrusion assembly is arranged through the inner hole of the inner sleeve, and the extrusion assembly includes a fixed core rod, which is embedded in the inner hole of the inner sleeve, and the outer diameter of the fixed core rod is smaller than the inner diameter of the inner sleeve, and the top end of the fixed core rod extends from the gear ring on the outer edge of the hole in the grinding disc.

[0010] Furthermore, the extrusion assembly also includes a rotating shaft and a gear. The rotating shafts are rotatably installed on both sides of the top of the fixed core rod, and the root of the rotating shaft is coaxially connected with a gear, and the gear is meshed with the outer edge of the gear ring for transmission.

[0011] Furthermore, the extrusion assembly also includes an eccentric wheel and a grinding roller. The eccentric wheel is coaxially connected to the end of the rotating shaft, and the grinding roller is sleeved on the outside of the rotating shaft, and the outer edge of the grinding roller is tightly fitted with the surface of the grinding disc.

[0012] Furthermore, the U-shaped frame is fixed to the right end of the base, and a control box is fixed to the left end of the base, and the control box is electrically connected to the motor through a wiring harness.

[0013] Furthermore, the outer sleeve of the grinding disc is provided with a shell, and the inner wall of the hole in the shell is fixed to the U-shaped frame through connecting ribs, a discharge port is opened at the bottom side end of the shell, and a material guide inclined plate is inclinedly arranged on the inner side of the discharge port opening, and the rotational connection between the material guide inclined plate and the outer sleeve is sealed by a sealing bearing.

[0014] Furthermore, a crushing assembly is fixed to the top opening of the shell, and the crushing assembly includes a screen barrel, a feed pipe, a rotating rod, a belt, a crushing knife and a shoveling plate. The bottom end of the curved surface of the screen barrel is provided with a sieve hole array, and the top end of the side of the screen barrel is connected to the feed pipe. A rotating rod is rotatably installed inside the screen barrel, and the end of the rotating rod is connected to the pulley for rotation transmission through a belt. The middle array of the rotating rod is connected to the crushing knife, and the shoveling plate at the end of the crushing knife fits against the inner wall of the screen barrel.

[0015] A granulation production process for pet feed production, the granulation production process for pet feed production is produced using the granulation production equipment as described above, comprising the following steps:

[0016] S1: The coaxial pulley in the middle of the motor output shaft rotates to the rotating rod in the middle of the screen barrel through a belt, driving the crushing knives connected to the array in the middle of the rotating rod to rotate at high speed, and also synchronously drives the scraper at the end of the crushing knives to rotate against the inner wall of the screen barrel, and the straw and other raw materials required for feed production are put into the screen barrel through the feed pipe, and the straw and other raw materials come into contact with the high-speed rotating crushing knives to achieve crushing;

[0017] S2: First, the driving umbrella wheel is meshed with the lower cone wheel below the opening of the U-shaped frame, and then the grinding disc is driven to rotate through the inner sleeve. Secondly, the driving umbrella wheel is meshed with the upper cone wheel above the opening of the U-shaped frame, and then the cutting knives on both sides are driven to rotate in contact with the bottom surface of the grinding disc through the outer sleeve. Finally, one end of the fixed core rod located in the middle of the inner sleeve is fixed to the U-shaped frame, and a roller is provided on the outer sleeve of the rotating shaft at the other end. When in use, the outer edge of the roller is tightly fitted with the top surface of the grinding disc, and the material is crushed by the gravity of the roller so that it is extruded through the granulation hole on the grinding disc, and further the feed is cut into fixed length segments under the action of the cutting knife coaxially rotating with the grinding disc;

[0018] S3: The coaxial gear at the root of the rotating shaft meshes with the gear ring on the outer edge of the hole in the grinding disc. In this way, during the rotation of the grinding disc, the eccentric wheel inside the hollow grinding wheel rotates synchronously to generate vibration. The vertical downward force generated by the vibration is used to improve the fluidity of the feed and reduce the blockage of the grinding disc.

[0019] The present invention provides a granulation production process and granulation production equipment for pet feed production, which have the following beneficial effects:

[0020] 1. During the use of the present invention, on the one hand, the present application adds crushing pretreatment before the granulation process, so as to ensure that the material reaches a uniform fineness after crushing, and improves the fluidity by cutting the raw materials into smaller particles, thereby reducing the risk of clogging of the grinding disc. On the other hand, the power supply of the crushing process and the granulation process is uniformly provided by the motor, without the need to add an additional power mechanism, thereby improving the structural linkage between the crushing process and the granulation process and reducing costs;

[0021] 2. During the use of the present invention, only one motor is required. While the middle pulley of the output shaft provides power for the crushing pretreatment process before the granulation process, the output shaft end drives the bevel wheel to synchronously provide power for the granulation component and the segmentation component. Then, the coaxial reversal of the lower grinding disc driven by the granulation component and the lower segmentation knife driven by the segmentation component is realized to extrusion and fixed-length segmentation of the feed. In addition, during the self-rotation of the grinding disc, the outer edge gear ring of the middle hole and the gears at the root of the rotating shaft on both sides of the top of the fixed core rod are meshed and driven, so as to drive the eccentric wheel inside the hollow grinding wheel to rotate synchronously and generate vibration, thereby reducing the blockage of the grinding disc by improving the fluidity of the feed. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the device of the present invention;

[0023] Figure 2 It is a partial structural schematic diagram of the device of the present invention;

[0024] Figure 3 It is a partial structural schematic diagram of the device of the present invention;

[0025] Figure 4 It is a schematic diagram of the structure of the granulation assembly of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of the segment cutting assembly of the present invention;

[0027] Figure 6 It is a schematic diagram of the structure of the extrusion assembly of the present invention;

[0028] Figure 7 It is a schematic diagram of the structure of the crushing component of the present invention.

[0029] In the figure: 1, U-shaped frame; 2, motor; 3, pulley; 4, driving umbrella wheel; 5, granulating assembly; 501, inner sleeve; 502, lower cone wheel; 503, grinding disc; 504, gear ring; 6, segmenting assembly; 601, outer sleeve; 602, upper cone wheel; 603, segmenting knife; 7, extrusion assembly; 701, fixed core rod; 702, rotating shaft; 703, gear; 704, eccentric wheel; 705, rolling roller; 8, base; 9, control box; 10, shell; 11, connecting rib; 12, discharge port; 13, guide inclined plate; 14, crushing assembly; 1401, screen barrel; 1402, feed pipe; 1403, rotating rod; 1404, belt; 1405, crushing knife; 1406, copying plate. DETAILED DESCRIPTION

[0030] The following embodiments of the present invention are further described in detail with reference to the accompanying drawings and examples. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0031] See also Figures 1 to 4 The present invention provides a technical solution: a granulation production equipment, comprising a U-shaped frame 1 and a granulation assembly 5, a motor 2 is fixedly installed on the side end of the U-shaped frame 1, and a pulley 3 is coaxially connected to the middle of the output shaft of the motor 2, and a driving bevel wheel 4 is coaxially connected to the end of the output shaft of the motor 2, and the granulation assembly 5 is rotatably installed below the opening of the U-shaped frame 1, and the granulation assembly 5 comprises an inner sleeve 501, a lower cone wheel 502, a grinding disc 503 and a gear ring 504, the inner sleeve 501 is a hollow cylindrical structure, and the bottom of the inner sleeve 501 is coaxially connected to the lower cone wheel 502, the lower cone wheel 502 is rotatably installed below the opening of the U-shaped frame 1, and the lower cone wheel 502 is gear-engaged with the lower side end of the driving bevel wheel 4, the top of the inner sleeve 501 is coaxially connected to the grinding disc 503, and the surface of the grinding disc 503 is provided with granulation holes in an array, and the outer edge of the hole in the grinding disc 503 is fixedly installed with a gear ring 504;

[0032] The specific operation is as follows: the coaxial gear 703 at the root of the rotating shaft 702 is meshed with the gear ring 504 at the outer edge of the hole in the grinding disc 503, so that during the rotation of the grinding disc 503, the eccentric wheel 704 inside the hollow grinding wheel rotates synchronously to generate vibration. The vertical downward force generated by the vibration is used to improve the fluidity of the feed and reduce the blockage of the grinding disc 503. The present application only requires the setting of one motor 2. While providing power for the crushing pretreatment process before the granulation process through the pulley 3 in the middle of the output shaft, it also drives the umbrella wheel through the end of the output shaft 4 synchronously provides power to the granulating component 5 and the segmenting component 6, and then the coaxial reversal of the lower grinding disc 503 driven by the granulating component 5 and the lower segmenting knife 603 driven by the segmenting component 6 realizes the extrusion molding and the fixed-length segmenting of the feed. In addition, during the self-rotation process of the grinding disc 503, the outer edge gear ring 504 of the middle hole and the root gear 703 of the rotating shaft 702 on both sides of the top of the fixed core rod 701 are meshed and driven, so as to drive the eccentric wheel 704 inside the hollow grinding wheel to rotate synchronously and generate vibration, thereby improving the fluidity of the feed to reduce the blockage of the grinding disc 503;

[0033] See also Figures 5 and 6 A segmentation assembly 6 is rotatably installed above the opening of the U-shaped frame 1. The segmentation assembly 6 includes an outer sleeve 601 and an upper cone wheel 602. The outer sleeve 601 is sleeved on the outside of the inner sleeve 501, and the inner diameter of the outer sleeve 601 is larger than the outer diameter of the inner sleeve 501. The bottom of the outer sleeve 601 is coaxially connected with the upper cone wheel 602, and the upper cone wheel 602 is toothedly meshed with the upper side end of the driving umbrella wheel 4 for transmission. The segmentation assembly 6 also includes a segmentation knife 603. The segmentation knife 603 is coaxially connected to the top two sides of the outer sleeve 601, and the segmentation knife 603 is arranged in a plane at the bottom of the grinding disc 503. An extrusion assembly 7 is arranged through the hole in the inner sleeve 501. The extrusion assembly 7 includes a fixed core rod 701, and the fixed core rod 701 is embedded It is arranged inside the hole of the inner sleeve 501, and the outer diameter of the fixed core rod 701 is smaller than the inner diameter of the inner sleeve 501, and the top of the fixed core rod 701 extends from the gear ring 504 on the outer edge of the hole in the grinding disc 503. The extrusion assembly 7 also includes a rotating shaft 702 and a gear 703. The rotating shaft 702 is rotatably installed on both sides of the top of the fixed core rod 701, and the root of the rotating shaft 702 is coaxially connected with the gear 703, and the gear 703 is meshed with the outer edge of the gear ring 504 for transmission. The extrusion assembly 7 also includes an eccentric wheel 704 and a grinding roller 705. The end of the rotating shaft 702 is coaxially connected with the eccentric wheel 704, and the outer sleeve of the rotating shaft 702 is provided with a grinding roller 705, and the outer edge of the grinding roller 705 is tightly fitted with the surface of the grinding disc 503.

[0034] The specific operation is as follows: during the power transmission process, the driving bevel wheel 4 coaxial with the output shaft end of the motor 2 firstly meshes and transmits with the lower cone wheel 502 below the opening of the U-shaped frame 1, and then drives the grinding disc 503 to rotate through the inner sleeve 501; secondly, the driving bevel wheel 4 meshes and transmits with the upper cone wheel 602 above the opening of the U-shaped frame 1, and then drives the cutting knives 603 on both sides to rotate in contact with the bottom surface of the grinding disc 503 through the outer sleeve 601; finally, one end of the fixed core rod 701 located in the middle of the inner sleeve 501 is fixed to the U-shaped frame 1, and the outer sleeve of the rotating shaft 702 at the other end is provided with a grinding roller 705. When in use, the outer edge of the grinding roller 705 is tightly fitted with the top surface of the grinding disc 503, and the material is crushed by the gravity of the grinding roller 705 so that it is extruded through the granulation hole on the grinding disc 503, and further, the fixed-length cutting of the feed is achieved under the action of the cutting knife 603 coaxially and inverted with the grinding disc 503;

[0035] See also Figure 7 The U-shaped frame 1 is fixed to the right end of the base 8, and a control box 9 is fixed to the left end of the base 8, and the control box 9 is electrically connected to the motor 2 through a harness. The grinding disc 503 is sleeved with a shell 10, and the inner wall of the hole in the shell 10 is fixed to the U-shaped frame 1 through a connecting rib 11. A discharge port 12 is opened at the bottom side of the shell 10, and a guide ramp 13 is inclinedly arranged on the inner side of the discharge port 12 opening, and the guide ramp 13 and the outer sleeve 601 are rotatably connected by a sealed bearing. A crushing assembly 14 is fixed to the top opening of the shell 10, and the crushing assembly 14 includes The screen barrel 1401 includes a screen barrel 1401, a feed pipe 1402, a rotating rod 1403, a belt 1404, a crushing knife 1405 and a shoveling plate 1406. The bottom end of the curved surface of the screen barrel 1401 is provided with screen holes in an array, and the top end of the side of the screen barrel 1401 is connected with the feed pipe 1402. The screen barrel 1401 is rotatably installed with a rotating rod 1403, and the end of the rotating rod 1403 is connected to the pulley 3 through the belt 1404 for rotational transmission. The middle part of the rotating rod 1403 is connected with a crushing knife 1405 in an array, and the shoveling plate 1406 at the end of the crushing knife 1405 is in contact with the inner wall of the screen barrel 1401.

[0036] The specific operation is as follows: the coaxial pulley 3 in the middle of the output shaft of the motor 2 is rotated to the rotating rod 1403 in the middle of the screen barrel 1401 through the belt 1404, and while driving the crushing knife 1405 connected to the array in the middle of the rotating rod 1403 to rotate at high speed, it also synchronously drives the lifting plate 1406 at the end of the crushing knife 1405 to rotate in contact with the inner wall of the screen barrel 1401. When in use, the straw and other raw materials required for feed production are put into the screen barrel 1401 through the feeding pipe 1402, and the straw and other raw materials are in contact with the high-speed rotating crushing knife 1405 to achieve crushing. When the particle size of the raw material particles does not reach the size of the screen barrel When the aperture of the sieve hole at the bottom of the arc surface 1401 is smaller than that of the sieve hole, the raw material will be picked up by the lifting plate 1406 and crushed again, and the cycle will be repeated until the raw material particles reach the expected level and fall through the sieve hole. On the one hand, the present application adds crushing pretreatment before the granulation process, so as to ensure that the material reaches a uniform fineness after crushing, and improves fluidity by cutting the raw material into smaller particles, thereby reducing the risk of clogging of the grinding disc 503. On the other hand, the power supply for the crushing process and the granulation process is uniformly provided by the motor 2, without the need for additional power mechanism, thereby improving the structural linkage between the crushing process and the granulation process and reducing costs.

[0037] In summary, when using the granulation production process and granulation production equipment for pet feed production, the coaxial pulley 3 in the middle of the output shaft of the motor 2 is rotated to the rotating rod 1403 in the middle of the screen barrel 1401 through the belt 1404, while driving the crushing knife 1405 connected to the array in the middle of the rotating rod 1403 to rotate at high speed, it also synchronously drives the shoveling plate 1406 at the end of the crushing knife 1405 to rotate in contact with the inner wall of the screen barrel 1401. When in use, the straw and other raw materials required for feed production are put into the screen barrel 1401 through the feeding pipe 1402, and the straw and other raw materials contact the high-speed rotating crushing knife 1405 to achieve crushing. When the particle size of the raw material particles does not reach the aperture of the sieve hole at the bottom end of the curved surface of the screen barrel 1401, the raw material will be picked up by the shoveling plate 1406 for crushing again. , and the cycle is repeated until the raw material particles reach the expected level and fall through the sieve holes. On the one hand, the present application adds crushing pretreatment before the granulation process, so as to ensure that the material reaches a uniform fineness after crushing, and improves fluidity by cutting the raw materials into smaller particles, thereby reducing the risk of clogging of the grinding disc 503. On the other hand, the power supply for the crushing process and the granulation process is uniformly provided by the motor 2, and there is no need to add an additional power mechanism, thereby improving the structural linkage between the crushing process and the granulation process and reducing costs. During the power transmission process, the driving bevel wheel 4 coaxial with the output shaft end of the motor 2 first engages with the lower cone wheel 502 below the opening of the U-shaped frame 1 for transmission, and then drives the grinding disc 503 to rotate through the inner sleeve 501; secondly, the driving bevel wheel 4 engages with the U-shaped frame 1 to open The upper cone wheel 602 above the opening is meshed for transmission, and then the cutting knives 603 on both sides are driven to rotate in contact with the bottom surface of the grinding disc 503 through the outer sleeve 601. Finally, one end of the fixed core rod 701 located in the middle of the inner sleeve 501 is fixed to the U-shaped frame 1, and the outer sleeve 702 of the other end is provided with a grinding roller 705. When in use, the outer edge of the grinding roller 705 is tightly fitted with the top surface of the grinding disc 503, and the material is crushed by the gravity of the grinding roller 705 to be extruded through the granulation hole on the grinding disc 503, and further, the feed is cut into fixed length segments under the action of the cutting knife 603 coaxially and counterclockwise with the grinding disc 503. At the same time, the gear 703 coaxial at the root of the rotating shaft 702 is meshed with the gear ring 504 on the outer edge of the hole in the grinding disc 503, so that when the grinding disc 503 rotates, the feed is cut into fixed length segments. During the process, the eccentric wheel 704 inside the hollow grinding wheel rotates synchronously to generate vibration. The vertical downward force generated by the vibration is used to improve the fluidity of the feed and reduce the blockage of the grinding disc 503. The present application only requires the setting of one motor 2. While providing power for the crushing pretreatment process before the granulation process through the pulley 3 in the middle of the output shaft, the bevel wheel 4 is driven by the end of the output shaft to synchronously provide power for the granulation component 5 and the segmentation component 6, and then the coaxial reversal of the lower grinding disc 503 driven by the granulation component 5 and the lower segmentation knife 603 driven by the segmentation component 6 is realized to realize the extrusion molding and fixed-length segmentation of the feed. In addition, during the self-rotation of the grinding disc 503, the meshing transmission is also carried out through the outer edge gear ring 504 of the middle hole and the root gear 703 of the rotating shaft 702 on both sides of the top of the fixed core rod 701.The eccentric wheel 704 inside the hollow grinding wheel is driven to rotate synchronously and generate vibration, thereby improving the fluidity of the feed to reduce the blockage of the grinding disc 503.

[0038] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various implementations with various modifications suitable for specific uses.

Claims

1. A granulation production equipment, characterized in that, The invention comprises a U-shaped frame (1) and a granulating assembly (5), wherein a motor (2) is fixedly mounted on a side end of the U-shaped frame (1), a pulley (3) is coaxially connected to the middle of the output shaft of the motor (2), and a driving bevel wheel (4) is coaxially connected to the end of the output shaft of the motor (2), and the granulating assembly (5) is rotatably mounted below the opening of the U-shaped frame (1), and the granulating assembly (5) comprises an inner sleeve (501), a lower cone wheel (502), a grinding disc (503) and a gear ring (504), wherein the inner sleeve (5 01) is a hollow cylindrical structure, and the bottom of the inner sleeve (501) is coaxially connected to a lower cone wheel (502), the lower cone wheel (502) is rotatably installed below the opening of the U-shaped frame (1), and the lower cone wheel (502) is toothedly meshed with the lower side end of the driving bevel wheel (4) for transmission, the top of the inner sleeve (501) is coaxially connected to a grinding disc (503), and the surface of the grinding disc (503) is provided with granulation holes in an array, and a gear ring (504) is fixedly installed on the outer edge of the hole in the grinding disc (503).

2. A granulation production equipment according to claim 1, characterized in that, A cutting assembly (6) is rotatably mounted above the opening of the U-shaped frame (1), and the cutting assembly (6) comprises an outer sleeve (601) and an upper cone wheel (602). The outer sleeve (601) is sleeved outside the inner sleeve (501), and the inner diameter of the outer sleeve (601) is larger than the outer diameter of the inner sleeve (501). The bottom of the outer sleeve (601) is coaxially connected to the upper cone wheel (602), and the upper cone wheel (602) is toothedly meshed with the upper side end of the driving bevel wheel (4) for transmission.

3. A granulation production equipment according to claim 2, characterized in that, The segmenting assembly (6) further comprises a segmenting knife (603), and the segmenting knives (603) are coaxially connected to the top two sides of the outer sleeve (601), and the segmenting knife (603) is arranged in contact with the bottom plane of the grinding disc (503).

4. A granulation production equipment according to claim 3, characterized in that, An extrusion assembly (7) is provided through the hole in the inner sleeve (501), and the extrusion assembly (7) includes a fixed core rod (701). The fixed core rod (701) is embedded in the hole in the inner sleeve (501), and the outer diameter of the fixed core rod (701) is smaller than the inner diameter of the inner sleeve (501), and the top end of the fixed core rod (701) extends out from the tooth ring (504) at the outer edge of the hole in the grinding disc (503).

5. A granulation production equipment according to claim 4, characterized in that, The extrusion assembly (7) further comprises a rotating shaft (702) and a gear (703); the rotating shaft (702) is rotatably mounted on both sides of the top of the fixed core rod (701); the root of the rotating shaft (702) is coaxially connected to the gear (703); and the gear (703) is meshed with the outer edge gear teeth of the gear ring (504) for transmission.

6. A granulation production equipment according to claim 5, characterized in that: The extrusion assembly (7) further comprises an eccentric wheel (704) and a grinding roller (705); the end of the rotating shaft (702) is coaxially connected with the eccentric wheel (704); the rotating shaft (702) is externally sleeved with the grinding roller (705); and the outer edge of the grinding roller (705) is tightly fitted with the surface of the grinding disc (503).

7. A granulation production equipment according to claim 6, characterized in that: The U-shaped frame (1) is fixed to the right end of the base (8), and a control box (9) is fixed to the left end of the base (8), and the control box (9) is electrically connected to the motor (2) via a wiring harness.

8. A granulation production equipment according to claim 7, characterized in that: The grinding disc (503) is externally sleeved with a shell (10), and the inner wall of the hole in the shell (10) is fixed to the U-shaped frame (1) via a connecting rib (11); a discharge port (12) is provided at the bottom side end of the shell (10), and a material guide inclined plate (13) is obliquely provided on the inner side of the opening of the discharge port (12), and the rotational connection between the material guide inclined plate (13) and the outer sleeve (601) is sealed via a sealing bearing.

9. A granulation production equipment according to claim 8, characterized in that: A crushing assembly (14) is fixed to the top opening of the shell (10), and the crushing assembly (14) comprises a screen barrel (1401), a feed pipe (1402), a rotating rod (1403), a belt (1404), a crushing knife (1405) and a lifting plate (1406). The bottom end of the curved surface of the screen barrel (1401) is provided with screen holes in an array, and the top end of the side of the screen barrel (1401) is connected to the feed pipe (1402). A rotating rod (1403) is rotatably installed inside the screen barrel (1401), and the end of the rotating rod (1403) is connected to the pulley (3) for rotational transmission through a belt (1404). The middle part of the rotating rod (1403) is connected to the crushing knife (1405) in an array, and the lifting plate (1406) at the end of the crushing knife (1405) is in contact with the inner wall of the screen barrel (1401).

10. A granulation production process for pet feed production, characterized in that: The granulation production process for producing pet feed is produced using the granulation production equipment described in claim 9, and comprises the following steps: S1: The pulley (3) coaxial with the output shaft of the motor (2) is driven to rotate to the rotating rod (1403) in the middle of the screen barrel (1401) through the belt (1404), and while driving the crushing knives (1405) connected to the array in the middle of the rotating rod (1403) to rotate at high speed, it also synchronously drives the lifting plate (1406) at the end of the crushing knives (1405) to rotate in contact with the inner wall of the screen barrel (1401), and the straw and other raw materials required for feed production are put into the screen barrel (1401) through the feeding pipe (1402), and the straw and other raw materials come into contact with the high-speed rotating crushing knives (1405) to achieve crushing; S2: First, the driving bevel wheel (4) is meshed with the lower cone wheel (502) below the opening of the U-shaped frame (1) for transmission, and then the grinding disc (503) is driven to rotate through the inner sleeve (501). Secondly, the driving bevel wheel (4) is meshed with the upper cone wheel (602) above the opening of the U-shaped frame (1) for transmission, and then the cutting knives (603) on both sides are driven to rotate in contact with the bottom surface of the grinding disc (503) through the outer sleeve (601). Finally, the cutting knives (603) located in the middle of the inner sleeve (501) are driven to rotate in contact with the bottom surface of the grinding disc (503). One end of the fixed core rod (701) is fixed to the U-shaped frame (1), and the outer cover of the rotating shaft (702) at the other end is provided with a grinding roller (705). When in use, the outer edge of the grinding roller (705) is tightly fitted with the top surface of the grinding disc (503), and the material is crushed by the gravity of the grinding roller (705) so that it passes through the granulation holes on the grinding disc (503) to be extruded and formed, and further the feed is cut into fixed length segments under the action of the segmenting knife (603) coaxially and counter-rotating with the grinding disc (503); S3: The coaxial gear (703) at the root of the rotating shaft (702) meshes with the gear ring (504) at the outer edge of the hole in the grinding disc (503), so that during the rotation of the grinding disc (503), the eccentric wheel (704) inside the hollow grinding wheel rotates synchronously to generate vibration. The vertical downward force generated by the vibration is used to improve the fluidity of the feed and reduce the blockage of the grinding disc (503).

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