A raw material pretreatment device for feed processing

Abstract

The present invention discloses a raw material pretreatment device for feed processing, including a cleaning machine body and a screening drum movably installed inside the cleaning machine body. A screening mechanism is provided inside the screening drum, and a cleaning mechanism is provided on the screening drum. A magnetic separation mechanism is provided at the bottom inside the cleaning machine body. The screening mechanism includes a feeding hopper, a conveying pipeline, a conveying motor, a conveying shaft, a plurality of auger conveying blades, a transmission shaft, a plurality of spiral blades, an adjusting motor, an adjusting shaft, a driving gear, and an annular rack. The beneficial effect of the present invention is that the screening drum of the screening mechanism located inside the screening drum is composed of three arc-shaped screen plates with different mesh sizes, and a suitable arc-shaped screen plate can be selected according to feed raw materials with different particle sizes, with higher applicability; the cleaning mechanism uses a plurality of rubber beating hammers to reciprocate and stagger to beat the screening drum for cleaning; the magnetic separation mechanism uses a group of magnetic separation rollers and an electromagnetic adsorption plate to effectively perform magnetic separation on magnetic impurities in the feed raw materials.

Description

Technical Field

[0001] The present invention relates to the field of feed processing, and specifically to a raw material pretreatment device for feed processing. Background Art

[0002] Feed raw materials refer to feeds sourced from animals, plants, microorganisms, or minerals in feed processing. Feed raw materials include thirteen varieties such as raw grains, soybeans, soybean meal, corn, fish meal, amino acids, miscellaneous meals, additives, whey powder, oils and fats, meat and bone meal, and grains. Impurities in feed raw materials not only affect the quality of feed products but also directly relate to the safety of feed processing equipment and personnel. In severe cases, the entire equipment may be damaged, affecting the smooth progress of feed production.

[0003] During the feed processing process, it is first necessary to pre-treat the feed raw materials to remove impurities such as hemp ropes, stones, and iron nails in the raw materials through a screening machine and a magnetic separator. Currently, when cleaning impurities from feed raw materials, two devices are required to cooperate, resulting in low cleaning efficiency. Moreover, due to the large number and different particle sizes of feed raw materials, different sieves need to be replaced when screening feed raw materials of different particle sizes. When a large amount of magnetic impurities are adsorbed on the magnetic separation roller, the magnetic separation effect of the feed raw materials becomes poor, affecting the magnetic separation effect. Summary of the Invention

[0004] In view of the above defects, the present invention provides a raw material pretreatment device for feed processing to solve the problem of raw material pretreatment for feed processing.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A raw material pretreatment device for feed processing includes a cleaning machine body and a screening drum movably installed inside the cleaning machine body. A screening mechanism is provided inside the screening drum, a cleaning mechanism is provided on the screening drum, and a magnetic separation mechanism is provided at the bottom inside the cleaning machine body;

[0007] The screening mechanism includes a feeding hopper, a conveying pipeline, a conveying motor, a conveying shaft, a plurality of auger conveying blades, a transmission shaft, a plurality of spiral blades, an adjustment motor, an adjustment shaft, a driving gear, and an annular rack. The feeding hopper is inserted and installed on the left side of the upper end of the cleaning machine body. The conveying pipeline is inserted and installed at the bottom of the feeding hopper, and its right end extends into the screening drum. The conveying motor is installed on the left side of the conveying pipeline. The conveying shaft is movably installed inside the conveying pipeline and its left end is connected to the rotating end of the conveying motor. A plurality of auger conveying blades are evenly installed on the conveying shaft. The transmission shaft is movably inserted into the screening drum. A plurality of spiral blades are evenly installed on the right side of the transmission shaft. The adjustment motor is installed at the top inside the cleaning machine body. The adjustment shaft is installed on the rotating end of the adjustment motor. The driving gear is installed on the adjustment shaft. The annular rack is installed on the outer surface of the left side of the screening drum and meshes with the driving gear.

[0008] Further, the cleaning mechanism includes a crankshaft, a plurality of connecting rods, a plurality of fixed sleeves, a plurality of sliding rods, a plurality of limiting grooves, a plurality of rubber striking hammers, a guide plate, an arc-shaped material pushing plate, a material pushing shaft, and two groups of material pushing plate needles. The crankshaft is movably installed at the top inside the cleaning machine body. The plurality of connecting rods are evenly installed on the crankshaft. The plurality of fixed sleeves are fixedly installed inside the cleaning machine body. The plurality of sliding rods are movably inserted into the plurality of fixed sleeves, and the upper ends are movably hinged to the plurality of connecting rods. The plurality of limiting grooves are formed at the bottoms of the plurality of sliding rods. The tops of the plurality of rubber striking hammers are movably inserted into the plurality of limiting grooves. The guide plate is inclined and installed on the right side of the screening drum. The arc-shaped material pushing plate is installed on the right side inside the cleaning machine body. The material pushing shaft is movably inserted into the arc-shaped material pushing plate. The two groups of material pushing plate needles are evenly installed on the material pushing shaft.

[0009] Further, the crankshaft and the adjusting shaft are drivingly connected through a set of driving gears I. Springs are respectively installed at the tops of the plurality of limiting grooves. A plurality of strip-shaped holes corresponding to the material pushing plate needles are evenly formed on the guide plate and the arc-shaped material pushing plate.

[0010] Further, the magnetic separation mechanism includes a set of magnetic separation rollers, a set of partition plates, a set of cleaning rollers I, a mounting frame, a servo cylinder I, a set of rotating shafts, a connecting rod, an electromagnetic adsorption plate, a servo cylinder II, a cleaning scraper, a cleaning roller II, a strip-shaped rack, and a driving gear. The set of magnetic separation rollers are movably installed at the bottom inside the cleaning machine body. The set of partition plates are located below the set of magnetic separation rollers. The set of cleaning rollers I are located on the right side of the set of magnetic separation rollers. The mounting frame is installed at the rear end of the bottom of the cleaning machine body. The bottom of the servo cylinder I is movably hinged to the mounting frame. The set of rotating shafts are movably inserted into the upper ends inside the mounting frame. One end of the connecting rod is connected to one of the rotating shafts, and the other end is connected to the telescopic end of the servo cylinder I. The electromagnetic adsorption plate is installed on the other rotating shaft. The servo cylinder II is installed at the upper end inside the electromagnetic adsorption plate. The cleaning scraper is installed on the telescopic end of the servo cylinder II. The cleaning roller II is movably installed at the front end of the cleaning scraper. The strip-shaped rack is installed on one side inside the electromagnetic adsorption plate. The driving gear is installed on the cleaning roller II and meshes with the strip-shaped rack.

[0011] Further, a touch switch is installed on the mounting frame, and a touch rod corresponding to the touch switch is installed at the bottom of the connecting rod.

[0012] Further, a motor is installed on the left side of the bottom of the cleaning machine body. The motor is drivingly connected to the set of magnetic separation rollers and the material pushing shaft respectively through a set of driving belts I. A set of driving gears II are used for driving connection between the set of magnetic separation rollers and the cleaning rollers I. The rear ends of the set of rotating shafts are drivingly connected through a set of driving gears III.

[0013] Further, the conveying shaft and the transmission shaft are connected by a second transmission belt. Two groups of guide wheels are installed at the bottom inside the cleaning machine body, and a group of guide rings opposite to the guide wheels are installed on both sides of the outer surface of the screening drum.

[0014] Further, the screening drum is composed of three arc-shaped screen plates with different mesh sizes and three arc-shaped connecting parts. Each arc-shaped screen plate is divided into a blanking area and an inspection area, and the mesh of the inspection area is slightly smaller than that of the blanking area.

[0015] Further, a raw material discharge port, a magnetic impurity discharge port, and a non-magnetic impurity discharge port are respectively opened at the bottom of the cleaning machine body.

[0016] The present invention provides a raw material pretreatment device for feed processing, which has the following beneficial effects. The screening mechanism located inside the screening drum is composed of three arc-shaped screen plates with different mesh sizes. Appropriate arc-shaped screen plates can be selected according to feed raw materials of different particle sizes, and the applicability is higher. The blanking area on the arc-shaped screen plate can preliminarily screen impurities from the feed raw materials, and the inspection area, in cooperation with several spiral blades, can prevent larger impurities from falling into the bottom inside the cleaning machine body along with the material.

[0017] The cleaning mechanism uses several rubber striking hammers to strike the screening drum reciprocally and alternately to prevent materials or impurities from clogging in the mesh holes. Since the outer surface of the screening drum is irregular, the several rubber striking hammers are of a telescopic structure, and the deflector plate needles can deflect the screened non-magnetic impurities to the non-magnetic impurity discharge port.

[0018] The magnetic separation mechanism uses a group of magnetic separation rollers and electromagnetic adsorption plates to effectively perform magnetic separation on magnetic impurities in the feed raw materials. A group of cleaning rollers I can clean the outer surfaces of the group of magnetic separation rollers. The electromagnetic adsorption plates are of an expandable structure. The cleaning scraper, in cooperation with the cleaning rollers II, can clean the electromagnetic adsorption plates, which is convenient to use. Moreover, the screening and magnetic separation are of an integrated structure, effectively improving the feed cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the raw material pretreatment device for feed processing according to the present invention.

[0020] Figure 2 It is a cross-sectional view of the feeding hopper according to the present invention.

[0021] Figure 3 It is a cross-sectional view of the screening drum according to the present invention.

[0022] Figure 4 It is a longitudinal cross-sectional view of the screening drum according to the present invention.

[0023] Figure 5 It is a schematic diagram of the cleaning mechanism according to the present invention.

[0024] Figure 6 Schematic diagram of needle material feeding by the material feeding plate in the present invention.

[0025] Figure 7 Top view of the material feeding shaft in the present invention.

[0026] Figure 8 Schematic diagram of the electromagnetic adsorption plate closing in the present invention.

[0027] Figure 9 Schematic diagram of the mounting bracket in the present invention.

[0028] Figure 10 Schematic diagram of the electromagnetic adsorption plate opening in the present invention.

[0029] Figure 11 Top view of the electromagnetic adsorption plate in the present invention.

[0030] Figure 12 External view of a raw material pretreatment device for feed processing in the present invention.

[0031] In the figure: 1. Cleaning machine body; 2. Screening drum; 3. Feeding hopper; 4. Conveying pipeline; 5. Conveying motor; 6. Conveying shaft; 7. Screw conveyor blade; 8. Transmission shaft; 9. Spiral blade; 10. Adjusting motor; 11. Adjusting shaft; 12. Driving gear; 13. Annular rack; 14. Crankshaft; 15. Connecting rod; 16. Fixed sleeve; 17. Sliding rod; 18. Limit groove; 19. Rubber hitting hammer; 20. Guide plate; 21. Arc-shaped material feeding plate; 22. Material feeding shaft; 23. Material feeding plate needle; 24. Transmission gear one; 25. Spring; 26. Strip-shaped hole; 27. Magnetic separation roller; 28. Partition plate; 29. Cleaning roller one; 30. Mounting bracket; 31. Servo cylinder one; 32. Rotating shaft; 33. Connecting rod; 34. Electromagnetic adsorption plate; 35. Servo cylinder two; 36. Cleaning scraper; 37. Cleaning roller two; 38. Strip-shaped rack; 39. Transmission gear; 40. Touch switch; 41. Touch rod; 42. Motor; 43. Transmission belt one; 44. Transmission gear two; 45. Transmission gear three; 46. Transmission belt two; 47. Guide wheel; 48. Guide ring; 49. Arc-shaped screen plate; 50. Arc-shaped connecting part; 51. Feeding area; 52. Inspection area; 53. Raw material discharge port; 54. Magnetic impurity discharge port; 55. Non-magnetic impurity discharge port. Detailed implementation manners

[0032] The present invention will be specifically described below with reference to the accompanying drawings, as Figures 1 - 12 shown: A raw material pretreatment device for feed processing includes a cleaning machine body 1 and a screening drum 2 movably installed in the cleaning machine body 1. A screening mechanism is provided inside the screening drum 2, a cleaning mechanism is provided on the screening drum 2, and a magnetic separation mechanism is provided at the bottom inside the cleaning machine body 1;

[0033] The screening mechanism includes a feeding hopper 3, a conveying pipe 4, a conveying motor 5, a conveying shaft 6, a plurality of auger conveying blades 7, a transmission shaft 8, a plurality of spiral blades 9, an adjusting motor 10, an adjusting shaft 11, a driving gear 12 and an annular rack 13. The feeding hopper 3 is inserted on the left side of the upper end of the cleaning machine body 1, the conveying pipe 4 is inserted at the bottom of the feeding hopper 3, and the right end extends into the screening drum 2, the conveying motor 5 is installed on the left side of the conveying pipe 4, the conveying shaft 6 is movably installed in the conveying pipe 4, and the left end is connected to the rotating end of the conveying motor 5, a plurality of auger conveying blades 7 are evenly installed on the conveying shaft 6, the transmission shaft 8 is movably inserted in the screening drum 2, a plurality of spiral blades 9 are evenly installed on the right side of the transmission shaft 8, the adjusting motor 10 is installed on the top of the cleaning machine body 1, the adjusting shaft 11 is installed on the rotating end of the adjusting motor 10, the driving gear 12 is installed on the adjusting shaft 11, and the annular rack 13 is installed on the left side of the outer surface of the screening drum 2 and meshes with the driving gear 12.

[0034] The cleaning mechanism includes a crankshaft 14, a plurality of connecting rods 15, a plurality of fixed sleeves 16, a plurality of sliding rods 17, a plurality of limit grooves 18, a plurality of rubber hammers 19, a guide plate 20, an arc-shaped material-diverting plate 21, a material-diverting shaft 22 and two sets of material-diverting plate needles 23. The crankshaft 14 is movably mounted on the top of the cleaning machine body 1, a plurality of connecting rods 15 are evenly mounted on the crankshaft 14, a plurality of fixed sleeves 16 are fixedly mounted in the cleaning machine body 1, and a plurality of sliding rods 17 are movably mounted on the top of the cleaning machine body 1. It is inserted into a number of fixed sleeves 16, and the upper end is movably hinged with a number of connecting rods 15, a number of limit grooves 18 are opened at the bottom of a number of sliding rods 17, and the tops of a number of rubber hammers 19 are movably inserted into a number of limit grooves 18, the guide plate 20 is obliquely installed on the right side of the screening drum 2, the arc-shaped material stripping plate 21 is installed on the right side of the cleaning machine body 1, the material stripping shaft 22 is movably inserted in the arc-shaped material stripping plate 21, and two groups of material stripping plate needles 23 are evenly installed on the material stripping shaft 22.

[0035] The crankshaft 14 is connected to the adjusting shaft 11 through a group of transmission gears 24. Springs 25 are installed at the tops of the plurality of limit grooves 18. The guide plate 20 and the arc-shaped material-diverting plate 21 are evenly provided with a plurality of strip holes 26 corresponding to the material-diverting plate needles 23.

[0036] The magnetic separation mechanism includes a group of magnetic separation rollers 27, a group of partitions 28, a group of cleaning rollers 29, a mounting frame 30, a servo cylinder 31, a group of rotating shafts 32, a connecting rod 33, an electromagnetic adsorption plate 34, a servo cylinder 35, a cleaning scraper 36, a cleaning roller 37, a bar rack 38 and a transmission gear 39. A group of magnetic separation rollers 27 are movably mounted on the bottom of the cleaning machine body 1, a group of partitions 28 are located below a group of magnetic separation rollers 27, a group of cleaning rollers 29 are located on the right side of a group of magnetic separation rollers 27, the mounting frame 30 is installed at the bottom rear end of the cleaning machine body 1, and the bottom of the servo cylinder 31 is movably hinged on the mounting frame 30. A set of rotating shafts 32 are movably inserted in the upper end of the mounting frame 30, one end of the connecting rod 33 is connected to one of the rotating shafts 32, and the other end is connected to the telescopic end of the servo cylinder 1 31, the electromagnetic adsorption plate 34 is installed on the other rotating shaft 32, the servo cylinder 2 35 is installed on the upper end of the electromagnetic adsorption plate 34, the cleaning scraper 36 is installed on the telescopic end of the servo cylinder 2 35, the cleaning roller 2 37 is movably installed at the front end of the cleaning scraper 36, the bar rack 38 is installed on one side of the electromagnetic adsorption plate 34, and the transmission gear 39 is installed on the cleaning roller 2 37 and meshes with the bar rack 38.

[0037] A touch switch 40 is installed on the mounting frame 30 , and a touch rod 41 corresponding to the touch switch 40 is installed at the bottom of the connecting rod 33 .

[0038] An electric motor 42 is installed on the left side of the bottom of the cleaning machine body 1. The electric motor 42 is connected to a group of magnetic separation rollers 27 and the material-dispensing shaft 22 through a transmission belt 1 43, and a group of magnetic separation rollers 27 and a cleaning roller 1 29 are connected to each other through a group of transmission gears 2 44. The rear end of a group of rotating shafts 32 is connected to each other through a group of transmission gears 3 45.

[0039] The conveying shaft 6 is connected to the transmission shaft 8 by a transmission belt 46. Two sets of guide wheels 47 are installed at the bottom of the cleaning machine body 1, and a set of guide rings 48 opposite to the guide wheels 47 are installed on both sides of the outer surface of the screening drum 2.

[0040] The screening drum 2 is formed by three arc-shaped screen plates 49 with different mesh sizes and three arc-shaped connecting parts 50, and each arc-shaped screen plate 49 is divided into a material drop area 51 and an inspection area 52, and the mesh of the inspection area 52 is slightly smaller than the mesh of the material drop area 51.

[0041] A raw material discharge port 53 , a magnetic impurity discharge port 54 and a non-magnetic impurity discharge port 55 are respectively formed at the bottom of the cleaning machine body 1 .

[0042] Working principle of this embodiment: The electrical equipment used in the device is controlled by an external controller. When in use, the user can evenly put the feed materials that need to be cleaned into the conveying pipe 4 through the feeding hopper 3;

[0043] During screening: the feeding hopper 3 is inserted into the upper left side of the cleaning machine body 1, the conveying pipe 4 is inserted into the bottom of the feeding hopper 3, and the right end extends into the screening drum 2, the conveying motor 5 is installed on the left side of the conveying pipe 4, the conveying shaft 6 is movably installed in the conveying pipe 4 through a fastening bearing, and the left end is connected to the rotating end of the conveying motor 5, a number of auger conveying blades 7 are evenly installed on the conveying shaft 6, the left end of the transmission shaft 8 is movably inserted into the screening drum 2 through a fastening bearing, a number of spiral blades 9 are evenly installed on the right side of the transmission shaft 8, the adjustment motor 10 is installed at the top of the cleaning machine body 1, and the adjustment shaft 11 is installed at the rotating end of the adjustment motor 10 On the upper part, the driving gear 12 is installed on the adjusting shaft 11, the annular rack 13 is installed on the left side of the outer surface of the screening drum 2 and meshes with the driving gear 12, the conveying shaft 6 is connected to the transmission shaft 8 through the transmission belt 46, two groups of guide wheels 47 are installed at the bottom of the cleaning machine body 1, and a group of guide rings 48 opposite to the guide wheels 47 are installed on both sides of the outer surface of the screening drum 2. The screening drum 2 is composed of three arc-shaped screen plates 49 with different mesh sizes and three arc-shaped connecting parts 50, and each arc-shaped screen plate 49 is divided into a blanking area 51 and an inspection area 52. The mesh of the inspection area 52 is slightly smaller than the mesh of the blanking area 51. Figure 1 — Figure 4 As shown, the user first adjusts the appropriate arc screen plate 49 according to the particle size of the feed raw material, adjusts the motor 10 to rotate forward, and drives the screening drum 2 to rotate through the driving gear 12, so as to adjust and select the appropriate arc screen plate 49, and the conveying motor 5 drives a plurality of auger conveying blades 7 on the conveying shaft 6 to evenly convey the feed raw materials in the conveying pipe 4 to the screening drum 2. The screening drum 2 is tilted. Under the action of gravity, most of the screened feed raw materials fall into the bottom of the cleaning machine body 1 through the drop area 51, and impurities and a small part of the material enter the inspection area 52. The mesh of the inspection area 52 is slightly smaller than the mesh of the drop area 51. The feed raw materials are screened twice in cooperation with a plurality of spiral blades 9 on the transmission shaft 8 to prevent larger impurities from falling into the bottom of the cleaning machine body 1 together with the material. The arc connecting portion 50 is used to play a separating role. The material height on the arc screen plate 49 is controlled to be lower than the arc connecting portion 50, and the material discharge amount can be controlled by the auger conveying blade 7.

[0044] During cleaning: the crankshaft 14 is movably mounted on the top of the cleaning machine body 1 through a fastening bearing, a plurality of connecting rods 15 are evenly mounted on the crankshaft 14, a plurality of fixed sleeves 16 are fixedly mounted at both ends in the cleaning machine body 1, a plurality of sliding rods 17 are movably inserted in the plurality of fixed sleeves 16, and the upper ends are movably hinged with the plurality of connecting rods 15, a plurality of limiting grooves 18 are opened at the bottom of the plurality of sliding rods 17, and the tops of a plurality of rubber hammers 19 are movably inserted in the plurality of limiting grooves 18, The guide plate 20 is installed obliquely on the right side of the screening drum 2, the arc-shaped material-diverting plate 21 is installed on the right side of the cleaning machine body 1, the material-diverting shaft 22 is movably inserted in the arc-shaped material-diverting plate 21, and two sets of material-diverting plate needles 23 are evenly installed on the material-diverting shaft 22. The crankshaft 14 is connected to the adjustment shaft 11 through a set of transmission gears 24. Springs 25 are installed on the tops of the plurality of limit grooves 18, and a plurality of strip holes 26 corresponding to the material-diverting plate needles 23 are evenly opened on the guide plate 20 and the arc-shaped material-diverting plate 21. Figure 5 — Figure 7 As shown, when the screening drum 2 needs to be cleaned, the adjusting motor 10 first drives the screening drum 2 to rotate, and at the same time, the crankshaft 14 drives a plurality of staggered rubber hammers 19 to reciprocately hit the screening drum 2 to prevent materials or impurities from being blocked in the mesh. Since the outer surface of the screening drum 2 is irregular, the plurality of rubber hammers 19 are retractable structures, and the material-dispensing shaft 22 drives the material-dispensing plate needle 23 to move the screened non-magnetic impurities to the non-magnetic impurity discharge port 55;

[0045] During magnetic separation: A set of magnetic separation rollers 27 are movably installed at the bottom inside the cleaning machine body 1 through fastening bearings. A set of partition plates 28 are located below the set of magnetic separation rollers 27. A set of first cleaning rollers 29 are movably installed inside the cleaning machine body 1 through fastening bearings and are located on the right side of the set of magnetic separation rollers 27. The mounting frame 30 is installed at the rear end of the bottom of the cleaning machine body 1. The bottom of the first servo cylinder 31 is movably hinged to the mounting frame 30. A set of rotating shafts 32 are movably inserted into the upper end inside the mounting frame 30 through fastening bearings. One end of the connecting rod 33 is connected to one of the rotating shafts 32, and the other end is connected to the telescopic end of the first servo cylinder 31. The electromagnetic adsorption plate 34 is installed on the other rotating shaft 32. The second servo cylinder 35 is installed at the upper end inside the electromagnetic adsorption plate 34. The cleaning scraper 36 is installed on the telescopic end of the second servo cylinder 35. The second cleaning roller 37 is movably installed at the front end of the cleaning scraper 36. The strip-shaped rack 38 is installed on one side inside the electromagnetic adsorption plate 34. The transmission gear 39 is installed on the second cleaning roller 37 and meshes with the strip-shaped rack 38. A touch switch 40 is installed on the mounting frame 30. A touch rod 41 corresponding to the touch switch 40 is installed at the bottom of the connecting rod 33. A motor 42 is installed on the left side of the bottom of the cleaning machine body 1. The motor 42 is respectively connected to the set of magnetic separation rollers 27 and the feeding shaft 22 through the first transmission belt 43. The set of magnetic separation rollers 27 and the first cleaning rollers 29 are connected through a set of second transmission gears 44. The rear ends of the set of rotating shafts 32 are connected through a set of third transmission gears 45. As Figure 8 — Figure 12 shown, the screened feed raw materials fall into the magnetic separation mechanism. The set of magnetic separation rollers 27 cooperate with the electromagnetic adsorption plate 34 to effectively perform magnetic separation on the magnetic impurities in the feed raw materials. The feed raw materials after magnetic separation are discharged through the raw material discharge port 53, and the magnetic impurities are discharged through the magnetic impurity discharge port 54. The set of first cleaning rollers 29 can clean the outer surface of the set of magnetic separation rollers 27. When it is necessary to clean the magnetic impurities on the electromagnetic adsorption plate 34, the telescopic end of the first servo cylinder 31 contracts, driving the electromagnetic adsorption plate 34 to flip 180° through the set of rotating shafts 32. At the same time, the touch rod 41 touches the touch switch 40, and the electromagnetic adsorption plate 34 is powered off. As Figure 10 shown, under the action of gravity, a part of the magnetic materials fall off from the electromagnetic adsorption plate 34. At the same time, the second servo cylinder 35 drives the cleaning scraper 36 to rotate in cooperation with the second cleaning roller 37 to clean the electromagnetic adsorption plate 34, which is convenient for use. Moreover, the screening and magnetic separation are integrated structures, effectively improving the feed cleaning efficiency.

[0046] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the present invention. Some changes that those skilled in the art may make to some parts thereof all reflect the principles of the present invention and are within the protection scope of the present invention.

Claims

1. A raw material pretreatment device for feed processing, comprising a cleaning machine body (1) and a screening drum (2) movably installed inside the cleaning machine body (1), characterized in that, A screening mechanism is provided inside the screening drum (2), a cleaning mechanism is provided on the screening drum (2), and a magnetic separation mechanism is provided at the bottom inside the cleaning machine body (1); The screening mechanism includes a feeding hopper (3), a conveying pipe (4), a conveying motor (5), a conveying shaft (6), a plurality of auger conveying blades (7), a transmission shaft (8), a plurality of spiral blades (9), an adjusting motor (10), an adjusting shaft (11), a driving gear (12), and an annular rack (13). The feeding hopper (3) is inserted into the left side of the upper end of the cleaning machine body (1). The conveying pipe (4) is inserted into the bottom of the feeding hopper (3), and the right end extends into the screening drum (2). The conveying motor (5) is installed on the left side of the conveying pipe (4). The conveying shaft (6) is movably installed in the conveying pipe (4), and the left end is connected to the rotating end of the conveying motor (5). A plurality of auger conveying blades (7) are evenly installed on the conveying shaft (6). The transmission shaft (8) is movably inserted into the screening drum (2). A plurality of spiral blades (9) are evenly installed on the right side of the transmission shaft (8). The adjusting motor (10) is installed at the top inside the cleaning machine body (1). The adjusting shaft (11) is installed on the rotating end of the adjusting motor (10). The driving gear (12) is installed on the adjusting shaft (11). The annular rack (13) is installed on the outer surface of the left side of the screening drum (2) and meshes with the driving gear (12); The screening drum (2) is formed by connecting three arc-shaped screen plates (49) with different mesh sizes and three arc-shaped connecting parts (50). Each arc-shaped screen plate (49) is divided into a blanking area (51) and an inspection area (52), and the mesh of the inspection area (52) is slightly smaller than that of the blanking area (51); The cleaning mechanism includes a crankshaft (14), a plurality of connecting rods (15), a plurality of fixed sleeves (16), a plurality of sliding rods (17), a plurality of limiting grooves (18), a plurality of rubber striking hammers (19), a guide plate (20), an arc-shaped material guiding plate (21), a material guiding shaft (22), and two groups of material guiding plate needles (23). The crankshaft (14) is movably installed at the top inside the cleaning machine body (1). A plurality of connecting rods (15) are evenly installed on the crankshaft (14). A plurality of fixed sleeves (16) are fixedly installed inside the cleaning machine body (1). A plurality of sliding rods (17) are movably inserted into the plurality of fixed sleeves (16), and the upper ends are movably hinged to the plurality of connecting rods (15). A plurality of limiting grooves (18) are opened at the bottoms of the plurality of sliding rods (17). The tops of the plurality of rubber striking hammers (19) are movably inserted into the plurality of limiting grooves (18). The guide plate (20) is inclined and installed on the right side of the screening drum (2). The arc-shaped material guiding plate (21) is installed on the right side inside the cleaning machine body (1). The material guiding shaft (22) is movably inserted into the arc-shaped material guiding plate (21). Two groups of material guiding plate needles (23) are evenly installed on the material guiding shaft (22); The magnetic separation mechanism comprises a group of magnetic separation rollers (27), a group of partitions (28), a group of cleaning rollers (29), a mounting frame (30), a servo cylinder (31), a group of rotating shafts (32), a connecting rod (33), an electromagnetic adsorption plate (34), a servo cylinder (35), a cleaning scraper (36), a cleaning roller (37), a bar rack (38) and a transmission gear (39), wherein the group of magnetic separation rollers (27) are movably mounted on the bottom of the cleaning machine body (1), the group of partitions (28) are located below the group of magnetic separation rollers (27), the group of cleaning rollers (29) are located on the right side of the group of magnetic separation rollers (27), the mounting frame (30) is mounted on the rear end of the bottom of the cleaning machine body (1), and the bottom of the servo cylinder (31) is movably hinged on the mounting frame. A frame (30) is provided, a group of rotating shafts (32) are movably inserted in the upper end of the mounting frame (30), one end of the connecting rod (33) is connected to one of the rotating shafts (32), and the other end is connected to the telescopic end of the servo cylinder one (31), the electromagnetic adsorption plate (34) is mounted on the other rotating shaft (32), the servo cylinder two (35) is mounted on the upper end of the electromagnetic adsorption plate (34), the cleaning scraper (36) is mounted on the telescopic end of the servo cylinder two (35), the cleaning roller two (37) is movably mounted on the front end of the cleaning scraper (36), the bar rack (38) is mounted on one side of the electromagnetic adsorption plate (34), and the transmission gear (39) is mounted on the cleaning roller two (37) and meshes with the bar rack (38).

2. The pretreatment device for feed processing raw materials according to claim 1, wherein, The crankshaft (14) and the adjusting shaft (11) are connected to each other through a group of transmission gears (24). Springs (25) are respectively installed at the tops of the plurality of limit grooves (18). The guide plate (20) and the arc-shaped material-diverting plate (21) are evenly provided with a plurality of strip holes (26) corresponding to the material-diverting plate needles (23).

3. A raw material pretreatment device for feed processing, characterized in that A touch switch (40) is mounted on the mounting frame (30), and a touch rod (41) corresponding to the touch switch (40) is mounted on the bottom of the connecting rod (33).

4. A raw material pretreatment device for feed processing, characterized in that, A motor (42) is installed on the left side of the bottom of the cleaning machine body (1). The motor (42) is connected to a group of magnetic separation rollers (27) and a material-dispensing shaft (22) through a transmission belt 1 (43), and the group of magnetic separation rollers (27) and a cleaning roller 1 (29) are connected to each other through a transmission gear 2 (44). The rear end of a group of rotating shafts (32) is connected to each other through a transmission gear 3 (45).

5. The pretreatment device for feed processing raw materials according to claim 1, characterized in that, The conveying shaft (6) is connected to the transmission shaft (8) by means of a second transmission belt (46). Two sets of guide wheels (47) are installed at the bottom of the cleaning machine body (1). A set of guide rings (48) opposite to the guide wheels (47) are installed on both sides of the outer surface of the screening drum (2).

6. The pretreatment device for feed processing raw materials according to claim 1, characterized in that The bottom of the cleaning machine body (1) is respectively provided with a raw material discharge port (53), a magnetic impurity discharge port (54) and a non-magnetic impurity discharge port (55).

Images