A mixed forage conveying line permanent magnet gate cleaning device

Abstract

This utility model belongs to the field of permanent magnet door cleaning, and particularly relates to a permanent magnet door cleaning device for a mixed hay conveyor line. It includes a feed pipe, a discharge chamber, and a pump. The feed pipe is fixedly connected to the upper surface of the discharge chamber, and the pump is fixedly connected to the lower part of the discharge chamber. A permanent magnet door and a housing are rotatably connected to one side wall of the discharge chamber. A locking plate is slidably connected to the side of the discharge chamber near the permanent magnet door. When the permanent magnet door is open, the housing contacts the opposite side of the permanent magnet door. The housing is equipped with a locking structure, a lifting cleaning structure, and a vibration structure. The permanent magnet door is locked to the housing through the locking structure. In this utility model, a mechanical drive is used to clean the permanent magnet door, improving cleaning efficiency. The positioning rod can be limited by the provided slot and limit cap, ensuring the stability of the scraper when sliding downwards.

Description

Technical Field

[0001] This utility model belongs to the field of permanent magnet door cleaning, and in particular relates to a permanent magnet door cleaning device for a mixed hay conveyor line. Background Technology

[0002] Unprocessed hay often contains some soil, which may also contain magnetic soil and larger metal impurities. If livestock accidentally ingest unprocessed hay, it can cause poisoning and other adverse reactions. Therefore, hay needs to be demagnetized before processing. A common method is to place a permanent magnet gate on the hay transport line. As the hay passes through the permanent magnet gate, it can attract magnetic materials. However, as magnetic materials accumulate, the permanent magnet gate needs to be cleaned regularly. Usually, this is done manually with a scraper. However, larger metal impurities will be firmly attracted by the permanent magnet gate, making scraping difficult and slow. Utility Model Content

[0003] This invention provides a permanent magnet door cleaning device for a mixed straw conveyor line to solve the problems of difficulty in scraping and slow cleaning effect when manually using scrapers to clean large metal impurities.

[0004] This utility model provides a permanent magnet door cleaning device for a mixed hay conveyor line, which can effectively solve the above problems. The specific solution is as follows: A permanent magnet door cleaning device for a mixed hay conveyor line includes a feeding pipe, a feeding chamber and a pump. The feeding pipe is fixedly connected to the upper surface of the feeding chamber, and the pump is fixedly connected to the lower part of the feeding chamber. A permanent magnet door and a machine box are rotatably connected to one side wall of the feeding chamber, and a locking plate is slidably connected to the side of the feeding chamber near the permanent magnet door.

[0005] When the permanent magnet door is in the open state, the side of the housing opposite the permanent magnet door is in contact. The housing is equipped with a locking structure, a lifting cleaning structure and a vibration structure. The permanent magnet door is locked to the housing through the locking structure.

[0006] Furthermore, the chassis is L-shaped and hollow inside. The lifting cleaning structure includes a drive motor, a threaded rod, and a scraper. The drive motor is fixedly connected inside the chassis and connected to the threaded rod via a first transmission belt assembly. The chassis extends outward to form a support platform. One end of the threaded rod is rotatably connected to the support platform. An internally threaded lifting block is fixedly connected to one side of the scraper. The lifting block is threadedly connected to the threaded rod. The bottom of the scraper has a pointed tip. When the permanent magnet door is open, the side of the permanent magnet door away from the chassis and the pointed tip are on the same vertical plane.

[0007] Furthermore, the scraper has a first groove, which is arc-shaped, with the opening of the first groove facing downwards and located on one side of the tip.

[0008] Furthermore, a stepped groove is provided on the side of the feeding cavity near the permanent magnet door. A limit rod is slidably connected to the stepped groove, and a first compression spring is fixedly connected to the bottom of the stepped groove. The other end of the first compression spring is fixedly connected to the limit rod.

[0009] Furthermore, a clearance groove and a discharge port are provided on the horizontal end face below the chassis. The clearance groove is adapted to the scraper. A socket is provided on one side of the clearance groove, and a positioning rod is detachably inserted into the socket. The depth of the socket is greater than the height of the stepped groove. The socket and the positioning rod are interference-fitted. The other end of the positioning rod extends outward through the scraper and is slidably connected to the scraper. The center of the positioning rod and the threaded rod are on the same vertical plane. A push switch is provided on the other side of the clearance groove. The push switch is electrically connected to the drive motor.

[0010] Furthermore, the end of the positioning rod extending out of the scraper is provided with a thread, and the other end of the limiting rod is rotatably connected to a limiting cap, which is threaded onto the positioning rod.

[0011] Furthermore, a guide plate is fixedly connected to the discharge port, one end of the guide plate is inclined downwards, a ceramic plate is fixedly connected to the lower surface of the guide plate, and the vibration structure is located below the ceramic plate.

[0012] Furthermore, the vibration structure includes a U-shaped fixed plate, a cam, a push rod, and a limiting base. The two ends of the fixed plate are fixedly connected to ceramic plates, the push rod is slidably connected to the fixed plate, a rubber sleeve is fitted on the upper surface of the push rod, there is a gap between the upper surface of the rubber sleeve and the ceramic plates, an extension plate is fixedly connected to the lower surface of the push rod, a second compression spring is fixedly connected to the upper surface of the extension plate, and the other end of the second compression spring is fixedly connected to the lower surface of the fixed plate.

[0013] The cam has a second groove, which is corrugated. The limiting base is fixedly connected to the chassis. One side of the limiting base has a stepped limiting groove. A slider is slidably connected to the limiting groove. A sliding rod is fixedly connected to one side of the slider. The sliding rod is inverted T-shaped and its side away from the slider is slidably connected to the second groove. The long end of the sliding rod is located below the extension plate. The cam is driven by a second transmission belt assembly.

[0014] Furthermore, a storage box is snapped into the bottom of the chassis, and the storage box abuts against the inclined end of the guide plate. Multiple sets of platforms are provided inside the chassis, and the storage box is placed on the platforms.

[0015] Furthermore, the locking structure includes a first locking docking block and a locking rod. The first locking docking block has a slot for accommodating the locking rod, and a limit block is provided on the first locking docking block. The free end of the locking rod is provided with a telescopic slider.

[0016] A second locking docking block is fixedly connected to one side of the permanent magnet door. The second locking docking block is provided with a locking hole. The second locking docking block is located below the first locking docking block. The locking hole is adapted to the locking rod.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] I. In this utility model, a mechanical drive is used to clean the permanent magnet door, improving cleaning efficiency. When the permanent magnet door needs to be cleaned, the sliding lock plate is undone, and the permanent magnet door is rotated out of the feeding cavity and into contact with the machine box. The locking rod is rotated out by moving the telescopic slider, and part of the locking rod is slid into the locking hole to fix the permanent magnet door on the machine box. Then, the positioning rod is passed through the scraper and inserted into the clearance groove through the socket. The positioning rod is locked by the limit cap. The socket and limit cap can limit the positioning rod to ensure the stability of the scraper when it slides down.

[0019] Second, in this utility model, the sharp tip can scrape away the magnetic material adsorbed on the permanent magnet door. The first groove is arc-shaped, which can prevent some magnetic material from re-attaching to the permanent magnet door as the tip tilts. As the scraper descends and the magnetic material accumulates in the first groove, the weak magnetic material at the outer edge will flow into the guide plate through the discharge port.

[0020] Thirdly, in this utility model, when the cam rotates, the sliding rod can slide up and down through the cooperation of the limiting base, the slider, and the second groove. As the sliding rod slides upward, it will push the extension plate upward. The extension plate will drive the push rod upward, causing the rubber sleeve on the push rod to impact the ceramic sheet. The vibration is transmitted to the guide plate through the ceramic sheet, which in turn allows the magnetic material on the guide plate to flow into the storage box more quickly, preventing the material from accumulating on the guide plate. The ceramic sheet has high density and strong rigidity. When subjected to external force, its deformation is small, and it can quickly transmit the force and generate obvious vibration. When the push rod impacts the ceramic sheet, the rubber sleeve plays a buffering role, preventing the ceramic sheet from being damaged by prolonged impact in a localized area. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of the entire utility model;

[0022] Figure 2This is a three-dimensional schematic diagram of the permanent magnet door in the cleaning state in this utility model;

[0023] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle;

[0024] Figure 4 for Figure 2 A magnified view of a portion of point B in the middle;

[0025] Figure 5 This is a three-dimensional schematic diagram of the chassis in this utility model;

[0026] Figure 6 This is a partial cross-sectional view of the chassis in this utility model;

[0027] Figure 7 for Figure 6 A magnified view of a portion of point C in the middle;

[0028] Figure 8 for Figure 6 A magnified view of a portion of point D in the middle;

[0029] Figure 9 This is a three-dimensional schematic diagram of the feeding cavity in this utility model;

[0030] Figure 10 for Figure 9 A magnified view of a portion of point E in the middle;

[0031] Figure 11 This is an exploded view of the guide plate, ceramic sheet, and vibration structure in this utility model;

[0032] Figure 12 for Figure 11 A magnified view of a portion of point F in the middle.

[0033] In the diagram: 1. Feed pipe; 2. Discharge chamber; 3. Pump; 4. Permanent magnet door; 5. Chassis; 6. Locking plate; 7. Drive motor; 8. Threaded rod; 9. Scraper; 10. First transmission belt assembly; 11. Support platform; 12. Lifting block; 13. Tip; 14. First groove; 15. Stepped groove; 16. Limiting rod; 17. First compression spring; 18. Clearance groove; 19. Discharge port; 20. Positioning rod; 21. Limiting cap; 22. Guide plate; 23. Ceramic plate; 24. 25. Fixed plate; 26. Cam; 27. Top rod; 28. Limiting base; 29. ​​Rubber sleeve; 30. Extension plate; 31. Second compression spring; 32. Second groove; 33. Limiting groove; 34. Slider; 35. Sliding rod; 36. Storage box; 37. Platform; 38. First locking docking block; 39. Locking rod; 40. Limiting block; 41. Telescopic slider; 42. Second locking docking block; 43. Locking hole; 44. Press switch; 45. Second transmission belt assembly; 46. Insertion port. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0035] like Figure 1-12 As shown, a permanent magnet door cleaning device for a mixed hay conveyor line includes a feed pipe 1, a discharge chamber 2, and a pump 3. The feed pipe 1 is fixedly connected to the upper surface of the discharge chamber 2, and the pump 3 is fixedly connected to the lower part of the discharge chamber 2. A permanent magnet door 4 and a housing 5 are rotatably connected to one side wall of the discharge chamber 2. A locking plate 6 is slidably connected to the side of the discharge chamber 2 near the permanent magnet door 4. During operation, the feed pipe 1 is connected to the hopper, and the pump 3 extracts the hay in the feed pipe 1. During the extraction process, the hay passes through the discharge chamber 2, and the permanent magnet door 4 can adsorb the magnetic substances mixed in the hay.

[0036] When the permanent magnet door 4 is in the open state, the side of the housing 5 opposite to the permanent magnet door 4 comes into contact. The housing 5 is equipped with a locking structure, a lifting cleaning structure and a vibration structure. The permanent magnet door 4 is locked onto the housing 5 through the locking structure.

[0037] Furthermore, the chassis 5 is L-shaped and hollow inside. The lifting cleaning structure includes a drive motor 7, a threaded rod 8, and a scraper 9. The drive motor 7 is fixedly connected inside the chassis 5. The drive motor 7 is connected to the threaded rod 8 through the first transmission belt assembly 10. The chassis 5 extends outward to a support platform 11 for supporting the threaded rod 8. One end of the threaded rod 8 is rotatably connected to the support platform 11. An internal threaded lifting block 12 is fixedly connected to one side of the scraper 9. The lifting block 12 is threadedly connected to the threaded rod 8. The bottom of the scraper 9 is provided with a tip 13. When the permanent magnet door 4 is in the open state, the side of the permanent magnet door 4 away from the chassis 5 is on the same vertical plane as the tip 13.

[0038] Furthermore, the scraper 9 has a first groove 14, which is arc-shaped and has its opening facing downwards. The first groove 14 is located on one side of the tip 13.

[0039] Furthermore, a stepped groove 15 is provided on the side of the feeding cavity 2 near the permanent magnet door 4. The stepped groove 15 is slidably connected to a limit rod 16. A first compression spring 17 is fixedly connected to the bottom of the stepped groove 15, and the other end of the first compression spring 17 is fixedly connected to the limit rod 16.

[0040] Furthermore, a clearance groove 18 and a discharge port 19 are provided on the horizontal end face below the chassis 5. The clearance groove 18 is adapted to the scraper 9. A socket 45 is provided on one side of the clearance groove 18. A positioning rod 20 is detachably inserted into the socket 45. The depth of the socket 45 is greater than the height of the stepped groove 15, which can effectively prevent the positioning rod 20 from popping out of the socket 45. At the same time, the socket 45 and the positioning rod 20 are interference fit. The other end of the positioning rod 20 extends outward through the scraper 9, and the rod body is slidably connected to the scraper 9. The center of the positioning rod 20 and the threaded rod 8 are on the same vertical plane. A push switch 43 is provided on the other side of the clearance groove 18. The push switch 43 is electrically connected to the drive motor 7.

[0041] Furthermore, the positioning rod 20 extends out of the scraper 9 and is threaded at one end. The other end of the limiting rod 16 is rotatably connected to the limiting cap 21. The limiting cap 21 is threaded onto the positioning rod 20. Through the provided socket 45 and the limiting cap 21, the positioning rod 20 can be limited to ensure the stability of the scraper 9 when it slides downward.

[0042] Furthermore, a guide plate 22 is fixedly connected to the discharge port 19. One end of the guide plate 22 is inclined downwards. A ceramic plate 23 is fixedly connected to the lower surface of the guide plate 22. The vibration structure is set below the ceramic plate 23. The ceramic plate 23 has high density and strong rigidity. When subjected to external force, its deformation is small, and it can quickly transmit the force and generate obvious vibration.

[0043] Furthermore, the vibration structure includes a U-shaped fixed plate 24, a cam 25, a push rod 26, and a limiting base 27. The two ends of the fixed plate 24 are fixedly connected to the ceramic sheet 23. The push rod 26 is slidably connected to the fixed plate 24. A rubber sleeve 28 is sleeved on the upper surface of the push rod 26. There is a gap between the upper surface of the rubber sleeve 28 and the ceramic sheet 23. When the push rod 26 impacts the ceramic sheet 23, the rubber sleeve 28 plays a buffering role to prevent the ceramic sheet 23 from being damaged by prolonged impact. An extension plate 29 is fixedly connected to the lower surface of the push rod 26. A second compression spring 30 is fixedly connected to the upper surface of the extension plate 29. The other end of the second compression spring 30 is fixedly connected to the lower surface of the fixed plate 24.

[0044] The cam 25 has a second groove 31, which is corrugated. The limiting base 27 is fixedly connected to the housing 5. One side of the limiting base 27 has a stepped limiting groove 32. A slider 33 is slidably connected to the limiting groove 32. A sliding rod 34 is fixedly connected to one side of the slider 33. The sliding rod 34 is inverted T-shaped and its side away from the slider 33 is slidably connected to the second groove 31. The long end of the sliding rod 34 is located below the extension plate 29. The cam 25 is connected by a second transmission belt assembly 44. During the rotation of the cam 25, the sliding rod 34 can slide up and down through the cooperation of the limiting base 27, the slider 33, and the second groove 31. When the sliding rod 34 slides up, it will push the extension plate 29 up. At the same time, the second compression spring 30 is compressed. When the sliding rod 34 slides down, the second compression spring 30 is reset and stretched, and the extension plate 29 is reset.

[0045] Furthermore, a storage box 35 is snapped into the bottom of the chassis 5, and the storage box 35 abuts against the inclined end of the guide plate 22. The chassis 5 is equipped with multiple sets of platforms 36, on which the storage box 35 is placed, so that the staff can replace the storage box 35 in a timely manner.

[0046] In this embodiment: when the permanent magnet door 4 needs to be cleaned, slide the locking plate 6 to release the locking plate 6 from fixing the permanent magnet door 4, rotate the permanent magnet door 4 out of the unloading cavity 2 and make contact with the machine box 5, and fix the permanent magnet door 4 on the machine box 5 through the locking structure. Then, the positioning rod 20 passes through the scraper 9 and is inserted into the clearance groove 18 through the insertion port 45. The positioning rod 20 is locked by the limit cap 21. The insertion port 45 and the limit cap 21 can limit the positioning rod 20 to ensure the stability of the scraper 9 when it slides down.

[0047] Next, the drive motor 7 will be turned on. The drive motor 7 drives the threaded rod 8 to rotate through the first transmission belt assembly 10. The threaded engagement with the lifting block 12 drives the lifting block 12 to descend, thereby causing the scraper 9 to descend as well. The set tip 13 can scrape off the magnetic material adsorbed on the permanent magnet door 4. The first groove 14 is arc-shaped, which can prevent some magnetic material from re-attaching to the permanent magnet door 4 as the tip 13 is tilted. As the scraper 9 descends and the magnetic material accumulates in the first groove 14, the weak magnetic material at the outer edge will flow into the guide plate 22 through the discharge port 19. During the rotation of the threaded rod 8, the second transmission belt assembly 44 drives the cam 25 to rotate.

[0048] During the rotation of the cam 25, the sliding rod 34 can slide up and down through the cooperation of the limiting base 27, the slider 33, and the second groove 31. As the sliding rod 34 slides upward, it will push the extension plate 29 upward. The extension plate 29 drives the push rod 26 to push upward, causing the rubber sleeve 28 on the push rod 26 to impact the ceramic plate 23. The vibration is transmitted to the guide plate 22 through the ceramic plate 23, which in turn causes the magnetic material on the guide plate 22 to flow into the storage box 35 more quickly, preventing the material from accumulating on the guide plate 22. Example 2

[0049] like Figure 1-12 As shown, this embodiment has been improved on the basis of embodiment one as follows: Further, the locking structure includes a first locking docking block 37 and a locking rod 38. The first locking docking block 37 is provided with a slot for accommodating the locking rod 38. A limit block 39 is provided on the first locking docking block 37. A telescopic slider 40 is provided at the free end of the locking rod 38.

[0050] A second locking docking block 41 is fixedly connected to one side of the permanent magnet door 4. The second locking docking block 41 is provided with a locking hole 42. The second locking docking block 41 is located below the first locking docking block 37. The locking hole 42 is adapted to the locking rod 38.

[0051] In this embodiment: the permanent magnet door 4 is rotated out of the feeding cavity 2 and comes into contact with the housing 5. The locking rod 38 is rotated out by moving the telescopic slider 40, and part of the locking rod 38 is slid into the locking hole 42, thus locking the permanent magnet door 4. When the scraper 9 passes the locking rod 38, it will press the telescopic slider 40. When the scraper 9 moves completely into the clearance groove 18, it will press the push switch 43, causing the telescopic slider 40 to retract into the locking rod 38, avoiding interference with the movement path of the scraper 9. At this time, the drive motor 7 is turned off, the rotating limit cap 21 cancels the restriction on the positioning rod 20, and the positioning rod 20 is pulled out. At the same time, the locking rod 38 is pulled out from the locking hole 42, canceling the restriction on the permanent magnet door 4. The permanent magnet door 4 is rotated back into the feeding cavity 2, and the sliding locking plate 6 locks the permanent magnet door 4 onto the feeding cavity 2, thus completing the cleaning of the permanent magnet door 4.

[0052] In summary, the working process of this utility model is as follows: During the working process, the feed pipe 1 is connected to the silo, and the feed pump 3 extracts the straw in the feed pipe 1. During the extraction process, the straw will pass through the discharge chamber 2, and the magnetic substances mixed in the straw can be adsorbed by the permanent magnet door 4.

[0053] When cleaning the permanent magnet door 4 is required, slide the locking plate 6 to release the fixing of the permanent magnet door 4 by the locking plate 6, rotate the permanent magnet door 4 out of the feeding cavity 2 and make it contact the machine box 5. Rotate the locking rod 38 out by moving the telescopic slider 40, and slide part of the locking rod 38 into the locking hole 42 to fix the permanent magnet door 4 on the machine box 5. Then, pass the positioning rod 20 through the scraper 9 and insert it into the clearance groove 18 through the socket 45. Lock the positioning rod 20 through the limit cap 21. The socket 45 and the limit cap 21 can limit the positioning rod 20 to ensure the stability of the scraper 9 when it slides down.

[0054] Next, the drive motor 7 will be turned on. The drive motor 7 drives the threaded rod 8 to rotate through the first transmission belt assembly 10. The threaded engagement with the lifting block 12 drives the lifting block 12 to descend, thereby causing the scraper 9 to descend as well. The set tip 13 can scrape off the magnetic material adsorbed on the permanent magnet door 4. The first groove 14 is arc-shaped, which can prevent some magnetic material from re-attaching to the permanent magnet door 4 as the tip 13 is tilted. As the scraper 9 descends and the magnetic material accumulates in the first groove 14, the weak magnetic material at the outer edge will flow into the guide plate 22 through the discharge port 19. During the rotation of the threaded rod 8, the second transmission belt assembly 44 drives the cam 25 to rotate.

[0055] During the rotation of the cam 25, the sliding rod 34 can slide up and down through the cooperation of the limiting base 27, the slider 33, and the second groove 31. As the sliding rod 34 slides upward, it will push the extension plate 29 upward. The extension plate 29 drives the push rod 26 to push upward, causing the rubber sleeve 28 on the push rod 26 to impact the ceramic plate 23. The vibration is transmitted to the guide plate 22 through the ceramic plate 23, which in turn causes the magnetic material on the guide plate 22 to flow into the storage box 35 more quickly, preventing the material from accumulating on the guide plate 22.

[0056] When the scraper 9 moves completely into the clearance groove 18, it will press the push switch 43. At this time, the drive motor 7 will be turned off, the rotating limit cap 21 will remove the restriction on the positioning rod 20, the positioning rod 20 will be pulled out, and the locking rod 38 will be pulled out from the locking hole 42, removing the restriction on the permanent magnet door 4. The permanent magnet door 4 will be rotated back into the feeding cavity 2, and the sliding locking plate 6 will lock the permanent magnet door 4 onto the feeding cavity 2, thus completing the cleaning of the permanent magnet door 4.

[0057] However, as is well known to those skilled in the art, the working principle and wiring method of the drive motor 7 and the push switch 43 are commonplace and are all conventional means or common knowledge. They will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0058] The different embodiments described above can be combined, substituted, or used in combination with each other.

[0059] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0060] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A permanent magnet door cleaning device for a mixed hay conveyor line, characterized in that: It includes a feed pipe (1), a discharge chamber (2) and a pump (3). The feed pipe (1) is fixedly connected to the upper surface of the discharge chamber (2), and the pump (3) is fixedly connected to the lower part of the discharge chamber (2). A permanent magnet door (4) and a machine box (5) are rotatably connected to one side wall of the discharge chamber (2). A lock plate (6) is slidably connected to the side of the discharge chamber (2) near the permanent magnet door (4). When the permanent magnet door (4) is in the open state, the side of the housing (5) opposite to the permanent magnet door (4) is in contact. The housing (5) is provided with a locking structure, a lifting cleaning structure and a vibration structure. The permanent magnet door (4) is locked to the housing (5) by the locking structure.

2. The permanent magnet door cleaning device for a mixed hay conveyor line according to claim 1, characterized in that: The chassis (5) is L-shaped and hollow inside. The lifting cleaning structure includes a drive motor (7), a threaded rod (8) and a scraper (9). The drive motor (7) is fixedly connected inside the chassis (5). The drive motor (7) is connected to the threaded rod (8) through a first transmission belt assembly (10). The chassis (5) extends outward to a support platform (11). One end of the threaded rod (8) is rotatably connected to the support platform (11). An internal threaded lifting block (12) is fixedly connected to one side of the scraper (9). The lifting block (12) is threadedly connected to the threaded rod (8). The bottom of the scraper (9) is provided with a tip (13). When the permanent magnet door (4) is in the open state, the side of the permanent magnet door (4) away from the chassis (5) is on the same vertical plane as the tip (13).

3. The permanent magnet door cleaning device for a mixed hay conveyor line according to claim 2, characterized in that: The scraper (9) has a first groove (14), which is arc-shaped and has its opening facing downwards. The first groove (14) is located on one side of the tip (13).

4. The permanent magnet door cleaning device for a mixed hay conveyor line according to claim 2, characterized in that: The feeding cavity (2) has a stepped groove (15) on the side near the permanent magnet door (4). The stepped groove (15) is slidably connected to a limit rod (16). A first compression spring (17) is fixedly connected to the bottom of the stepped groove (15). The other end of the first compression spring (17) is fixedly connected to the limit rod (16).

5. A permanent magnet door cleaning device for a mixed hay conveyor line according to claim 4, characterized in that: A clearance groove (18) and a discharge port (19) are provided on the horizontal end face below the chassis (5). The clearance groove (18) is adapted to the scraper (9). A socket (45) is provided on one side of the clearance groove (18). A positioning rod (20) is detachably inserted into the socket (45). The depth of the socket (45) is greater than the height of the stepped groove (15). The socket (45) and the positioning rod (20) are interference fit. The other end of the positioning rod (20) extends outward through the scraper (9) and the rod body is slidably connected to the scraper (9). The center of the positioning rod (20) and the threaded rod (8) are on the same vertical plane. A push switch (43) is provided on the other side of the clearance groove (18). The push switch (43) is electrically connected to the drive motor (7).

6. The permanent magnet door cleaning device for a mixed hay conveyor line according to claim 5, characterized in that: The positioning rod (20) extends out of the scraper (9) and is threaded at one end. The other end of the limiting rod (16) is rotatably connected to the limiting cap (21), which is threaded onto the positioning rod (20).

7. A permanent magnet door cleaning device for a mixed hay conveyor line according to claim 6, characterized in that: A guide plate (22) is fixedly connected to the discharge port (19). One end of the guide plate (22) is inclined downwards. A ceramic plate (23) is fixedly connected to the lower surface of the guide plate (22). The vibration structure is located below the ceramic plate (23).

8. A permanent magnet door cleaning device for a mixed hay conveyor line according to claim 7, characterized in that: The vibration structure includes a U-shaped fixed plate (24), a cam (25), a push rod (26), and a limiting base (27). The two ends of the fixed plate (24) are fixedly connected to the ceramic sheet (23). The push rod (26) is slidably connected to the fixed plate (24). A rubber sleeve (28) is fitted on the upper surface of the push rod (26). There is a gap between the upper surface of the rubber sleeve (28) and the ceramic sheet (23). An extension plate (29) is fixedly connected to the lower surface of the push rod (26). A second compression spring (30) is fixedly connected to the upper surface of the extension plate (29). The other end of the second compression spring (30) is fixedly connected to the lower surface of the fixed plate (24). The cam (25) has a second groove (31) which is corrugated. The limiting base (27) is fixedly connected in the housing (5). One side of the limiting base (27) has a stepped limiting groove (32). A slider (33) is slidably connected to the limiting groove (32). A slide rod (34) is fixedly connected to one side of the slider (33). The slide rod (34) is inverted T-shaped and its side away from the slider (33) is slidably connected in the second groove (31). The long end of the slide rod (34) is located below the extension plate (29). The cam (25) is connected by a second transmission belt assembly (44).

9. A permanent magnet door cleaning device for a mixed hay conveyor line according to claim 8, characterized in that: The bottom of the chassis (5) is fitted with a storage box (35), which abuts against the inclined end of the guide plate (22). The chassis (5) is provided with multiple sets of platforms (36), and the storage box (35) is placed on the platform (36).

10. A permanent magnet door cleaning device for a mixed hay conveyor line according to claim 1, characterized in that: The locking structure includes a first locking docking block (37) and a locking rod (38). The first locking docking block (37) has a slot for accommodating the locking rod (38). The first locking docking block (37) is provided with a limit block (39). The free end of the locking rod (38) is provided with a telescopic slider (40). A second locking docking block (41) is fixedly connected to one side of the permanent magnet door (4). The second locking docking block (41) is provided with a locking hole (42). The second locking docking block (41) is located below the first locking docking block (37). The locking hole (42) is adapted to the locking rod (38).

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