Mixed grassland raw material demagnetizing device

Abstract

The utility model belongs to the field of demagnetization, and particularly relates to a mixed grassland material demagnetization device which comprises a feeding pipe and a demagnetization bin, the feeding pipe is located above the demagnetization bin, and a mounting opening is formed in one side of the demagnetization bin; an electromagnet is further included, the electromagnet is located in the mounting opening, the electromagnet is sleeved with a protective sleeve, the side, away from the electromagnet, of the protective sleeve is fixedly connected with a drawing structure, the drawing structure comprises an outer frame and a drawing handle, and the drawing handle is slidably connected with the outer frame; the outer frame and the mounting opening are locked through the lock rod; according to the electromagnet assembly and disassembly device, the outer frame and the installation opening can be locked through the arranged locking rod, a worker can better exert force when stretching the pulling handle, through the arranged disassembly opening, when the worker disassembles the electromagnet in the later period, the worker can conveniently disassemble the electromagnet, and the labor intensity of the worker is reduced. And the electromagnet can be warped out of the disassembly port by using a tool, so that the disassembly process is simplified.

Description

Technical Field

[0001] The utility model belongs to the field of demagnetization, in particular to a mixed grass raw material demagnetization device. Background Art

[0002] When processing forage, the unprocessed forage is often mixed with broken soil, and the soil contains some magnetic substances. If animals ingest forage containing magnetic substances for a long time, the magnetic substances will accumulate in the animal's digestive system, causing digestive problems and even intestinal obstruction. On the other hand, after animals ingest forage containing magnetic substances, the magnetic substances may react with other substances during the digestion process to produce harmful substances, causing a series of health problems for the animals. Therefore, the forage needs to be demagnetized before processing, but the common demagnetization device is not easy to disassemble. When repairing and replacing the electromagnet, the process is cumbersome and requires a lot of time to dismantle. Utility Model Content

[0003] The utility model provides a mixed grass raw material demagnetization device to solve the problem that common demagnetization devices are difficult to disassemble, and the process is cumbersome and takes a lot of time to dismantle when repairing and replacing the electromagnet.

[0004] The utility model provides a mixed grass raw material demagnetization device, which can effectively solve the above problems. The specific scheme is as follows: a mixed grass raw material demagnetization device, comprising a feed pipe and a demagnetization bin, wherein the feed pipe is located above the demagnetization bin, and a mounting port is provided on one side of the demagnetization bin;

[0005] It also includes an electromagnet, the electromagnet is located in the installation opening, the electromagnet sleeve is provided with a protective sleeve, a side of the protective sleeve away from the electromagnet is fixedly connected with a pull-out structure, the pull-out structure includes an outer frame and a pull-out handle, and the pull-out handle is slidably connected to the outer frame;

[0006] A locking rod, the outer frame and the mounting opening are locked together by the locking rod;

[0007] A first collecting box is detachably mounted on the outer frame.

[0008] Furthermore, the upper surface of the demagnetization bin is fixedly connected to a supporting seat by bolts, the interior of the supporting seat is hollow and communicated with the interior of the demagnetization bin, the feed pipe is fixedly connected to the upper surface of the supporting seat, a pump is installed on the side of the feed pipe close to the demagnetization bin, the pump is provided with a feed port and a discharge port, the feed port is communicated with the interior of the feed pipe, and the discharge port is connected with the interior of the supporting seat.

[0009] Further, a first electrical sheet is installed on one side of the installation opening. The first electrical sheet is electrically connected to an electrical wire. The other end of the electrical wire penetrates through the installation opening and extends to the outside and is fixedly connected to a plug. A slot is formed on the side of the protective sleeve opposite to the first electrical sheet. A second electrical sheet is inserted into the slot. The second electrical sheet is electrically connected to the electromagnet, and the second electrical sheet is in contact with the first electrical sheet.

[0010] Further, disassembly openings are formed on two opposite surfaces of the protective sleeve.

[0011] Further, an interface is provided on the side of the protective sleeve away from the electromagnet. Both ends of the pull handle penetrate through the outer frame and extend to the inside, and are inserted into the interface.

[0012] Further, a pull rod is fixedly connected to the side of the pull handle opposite to the outer frame. The pull rod is slidably connected to the outer frame. The other end of the pull rod penetrates through the outer frame and is fixedly connected to the protective sleeve. A tension spring is fixedly connected to the side surface of the outer frame opposite to the protective sleeve. Both ends of the tension spring are fixedly connected to the outer frame and the protective sleeve respectively.

[0013] Further, the tension spring is sleeved on the pull rod. A telescopic block is provided on the rod body of the pull rod between the outer frame and the protective sleeve. A limiting member is fixedly connected to the side of the outer frame opposite to the pull handle. The limiting members are symmetrically arranged on both sides of the pull rod. A reset rod is slidably connected to the limiting member, and the reset rod is adapted to the pull rod.

[0014] Further, a socket is formed on the side of the outer frame opposite to the protective sleeve. A limiting opening is formed on the side of the demagnetization bin opposite to the protective sleeve. One side of the first collection box is inserted into the socket, and the other side is located in the limiting opening and the lower surface abuts against the upper surface of the limiting opening. The first collection box is located directly below the electromagnet.

[0015] Further, a hinge is fixedly connected to one side of the installation opening. The outer frame is rotatably connected to the installation opening through the hinge. A first limiting plate is fixedly connected to the side of the outer frame away from the hinge. A second limiting plate is fixedly connected to the side of the installation opening opposite to the outer frame. Lock holes are formed on both the first limiting plate and the second limiting plate. The lock rod is inserted into the lock holes.

[0016] Further, the lower surface of the demagnetization bin is fixedly connected to a blanking frame through bolts. The inside of the blanking frame is communicated with the demagnetization bin. A sieve is fixedly connected inside the blanking frame. The sieve is inclined downward. A second collection box and a third collection box are placed at the bottom of the blanking frame. The third collection box is located directly below the sieve, and the second collection box is located below the end of the sieve inclined downward.

[0017] Beneficial effects

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0019] First, in the present utility model, the staff pulls the pull handle outwards until the telescopic block arranged on the pull rod slides out of the outer frame. After the telescopic block slides out of the outer frame, it will be clamped on the outer frame to prevent the pull handle from automatically retracting. During the process of the pull handle moving outwards, the protective sleeve will move outwards simultaneously with the pull handle. When the telescopic block slides out of the outer frame, the protective sleeve is pulled by the pull handle into the outer frame. At this time, the first electrical sheet and the second electrical sheet stop contacting, and at the same time, the side of the electromagnet away from the protective sleeve is located above the opening of the first collection box. After the second electrical sheet is powered off, the magnetic force of the electromagnet disappears, and the magnetic substance on the electromagnet will fall into the first collection box. Then, the lock rod is pulled out and the outer frame is rotated, so that the first collection box can be replaced or the electromagnet can be cleaned and repaired, which is convenient and fast.

[0020] Second, in the present utility model, the outer frame and the installation opening can be locked by the arranged lock rod, enabling the staff to exert force better when stretching the pull handle.

[0021] Third, in the present utility model, through the arranged disassembly interface, when the staff disassembles the electromagnet in the later stage, the electromagnet can be pried out from the disassembly interface by using tools, simplifying the disassembly process.

[0022] Fourth, in the present utility model, when the pull handle moves outwards, the tension spring is compressed and contracted. When the pull handle needs to be reset, by pressing the reset rod, the reset rod pushes the telescopic block back into the pull rod. At this time, the tension spring starts to reset and stretch, squeezing the protective sleeve to drive the protective sleeve to reset, realizing automatic reset. Description of the Drawings

[0023] Figure 1 is the overall three-dimensional schematic diagram of the present utility model;

[0024] Figure 2 is Figure 1 the partial enlarged schematic diagram at A in

[0025] Figure 3 the partial sectional schematic diagram of the feed pipe in the present utility model;

[0026] Figure 4 is the three-dimensional schematic diagram of the demagnetization bin in the present utility model;

[0027] Figure 5 is Figure 4 the partial enlarged schematic diagram at B in

[0028] Figure 6 the schematic diagram of the electromagnet, protective sleeve, pull handle and second electrical sheet in the present utility model;

[0029] Figure 7 is Figure 6 a partial enlarged schematic view of the C position in

[0030] Figure 8 is a schematic view of another perspective of the electromagnet, protective sleeve, pull handle and second electrical sheet in the present utility model;

[0031] Figure 9 is a sectional view of the present utility model except for the magnetic bin, outer frame and first collection box;

[0032] Figure 10 is Figure 9 a partial enlarged schematic view of the D position in

[0033] Figure 11 is a schematic view of the lock rod, outer frame, pull rod, limiting member and reset rod in the present utility model;

[0034] Figure 12 is a sectional view of the blanking frame in the present utility model.

[0035] In the figure: 1, feed pipe; 2, magnetic removal bin; 3, electromagnet; 4, installation port; 5, protective sleeve; 6, outer frame; 7, pull handle; 8, lock rod; 9, first collection box; 10, support seat; 11, pump; 12, feed port; 13, discharge port; 14, first electrical sheet; 15, electrical wire; 16, slot; 17, second electrical sheet; 18, disassembly interface; 19, docking interface; 20, pull rod; 21, tension spring; 22, telescopic block; 23, limiting member; 24, reset rod; 25, socket; 26, limiting port; 27, hinge; 28, first limiting plate; 29, second limiting plate; 30, lock hole; 31, blanking frame; 32, screen; 33, second collection box; 34, third collection box. Specific embodiments

[0036] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model. Embodiment 1

[0037] As Figures 1 - 12 shown, a magnetic removal device for mixed grass raw materials includes a feed pipe 1 and a magnetic removal bin 2. The feed pipe 1 is located above the magnetic removal bin 2, and an installation port 4 is provided on one side of the magnetic removal bin 2;

[0038] It also includes an electromagnet 3. The electromagnet 3 is located in the installation opening 4. A protective sleeve 5 is sleeved on the electromagnet 3. A pulling structure is fixedly connected to the side of the protective sleeve 5 away from the electromagnet 3. The pulling structure includes an outer frame 6 and a pulling handle 7. The pulling handle 7 is slidably connected to the outer frame 6;

[0039] A locking rod 8. The outer frame 6 and the installation opening 4 are locked by the locking rod 8;

[0040] A first collection box 9. The first collection box 9 is detachably installed on the outer frame 6;

[0041] Furthermore, a supporting seat 10 is fixedly connected to the upper surface of the demagnetization bin 2 by bolts. The inside of the supporting seat 10 is hollow and is connected to the inside of the demagnetization bin 2. The feed pipe 1 is fixedly connected to the upper surface of the supporting seat 10. The feed pipe 1 can be supported by the provided supporting seat 10. A pump 11 is installed on the side of the feed pipe 1 close to the demagnetization bin 2. The pump 11 is provided with a feed inlet 12 and a discharge outlet 13. The feed inlet 12 is connected to the inside of the feed pipe 1, and the discharge outlet 13 is connected to the inside of the supporting seat 10. Under the action of the pump 11, the forage in the feed pipe 1 enters from the feed inlet 12 and is discharged into the demagnetization bin 2 through the discharge outlet 13;

[0042] Furthermore, a first electrical sheet 14 is installed on one side of the installation opening 4. The first electrical sheet 14 is electrically connected to an electrical wire 15. The other end of the electrical wire 15 penetrates through the installation opening 4 and extends to the outside and is fixedly connected to a plug. A slot 16 is opened on the side of the protective sleeve 5 opposite to the first electrical sheet 14. A second electrical sheet 17 is inserted into the slot 16. The second electrical sheet 17 is electrically connected to the electromagnet 3. The second electrical sheet 17 is in contact with the first electrical sheet 14. By connecting the plug on the electrical wire 15 to an external power supply, the first electrical sheet 14 is powered on. The first electrical sheet 14 provides power for the second electrical sheet 17. The electromagnet 3 is powered on through the second electrical sheet 17 and generates a magnetic force. During the process of the forage falling in the demagnetization bin 2, the magnetic substances will be adsorbed by the electromagnet 3;

[0043] Furthermore, disassembly interfaces 18 are opened on two opposite surfaces of the protective sleeve 5. Through the provided disassembly interfaces 18, when the staff disassembles the electromagnet 3 in the later stage, a tool is used to pry the electromagnet 3 out from the disassembly interfaces 18, and the disassembly process is simplified;

[0044] Furthermore, an interface 19 is provided on the side of the protective sleeve 5 away from the electromagnet 3. The two ends of the pulling handle 7 penetrate through the outer frame 6 and extend to the inside, and are inserted into the interface 19. Through the provided interface 19, the two ends of the pulling handle 7 can be fixed on the protective sleeve 5. When the pulling handle 7 is pulled, the protective sleeve 5 can move together with the pulling handle 7;

[0045] Further, a pull rod 20 is fixedly connected to one side of the pull handle 7 opposite to the outer frame 6. The pull rod 20 is slidably connected to the outer frame 6. The other end of the pull rod 20 penetrates through the outer frame 6 and is fixedly connected to the protective sleeve 5. A tension spring 21 is fixedly connected to one side surface of the outer frame 6 opposite to the protective sleeve 5. The two ends of the tension spring 21 are respectively fixedly connected to the outer frame 6 and the protective sleeve 5;

[0046] Further, the tension spring 21 is sleeved on the pull rod 20. A telescopic block 22 is arranged on the rod body of the pull rod 20 between the outer frame 6 and the protective sleeve 5. A limiting member 23 is fixedly connected to one side of the outer frame 6 opposite to the pull handle 7. The limiting members 23 are symmetrically arranged on both sides of the pull rod 20. A reset rod 24 is slidably connected to the limiting member 23. The reset rod 24 is adapted to the pull rod 20. When the telescopic block 22 on the pull rod 20 slides out of the outer frame 6, the telescopic block 22 will squeeze the reset rods 24 on both sides of the pull rod 20. The limiting member 23 can limit the reset rod 24;

[0047] Further, a socket 25 is opened on one side of the outer frame 6 opposite to the protective sleeve 5. A limiting port 26 is opened on one side of the demagnetizing bin 2 opposite to the protective sleeve 5. One side of the first collection box 9 is inserted into the socket 25, and the other side is located in the limiting port 26 and the lower surface abuts against the upper surface of the limiting port 26. The first collection box 9 is located directly below the electromagnet 3. The staff pulls the pull handle 7 outwards until the telescopic block 22 arranged on the pull rod 20 slides out of the outer frame 6. After the telescopic block 22 slides out of the outer frame 6, it will be clamped on the outer frame 6 to prevent the pull handle 7 from automatically retracting. During the outward movement of the pull handle 7, the protective sleeve 5 will move outwards simultaneously with the pull handle 7. When the telescopic block 22 slides out of the outer frame 6, the protective sleeve 5 is pulled by the pull handle 7 into the outer frame 6. At this time, the first electric sheet 14 and the second electric sheet 17 stop contacting. At the same time, the side of the electromagnet 3 away from the protective sleeve 5 is located above the box opening of the first collection box 9. After the second electric sheet 17 is powered off, the magnetic force of the electromagnet 3 disappears, and the magnetic substances on the electromagnet 3 will fall into the first collection box 9;

[0048] When the pull handle 7 moves outwards, the tension spring 21 is squeezed and contracted. When the pull handle 7 needs to be reset, by pressing the reset rod 24, the reset rod 24 pushes the telescopic block 22 back into the pull rod 20. At this time, the tension spring 21 starts to reset and stretch, squeezing the protective sleeve 5 to drive the protective sleeve 5 to reset. After the protective sleeve 5 is reset, the second electric sheet 17 contacts the first electric sheet 14 and gets powered, and the electromagnet 3 gets powered and generates magnetic force. Embodiment 2

[0049] As Figures 1 - 12As shown in the figure, the following improvements are made to this embodiment based on Embodiment 1: Further, one side of the installation opening 4 is fixedly connected with a hinge 27, and the outer frame 6 is rotatably connected to the installation opening 4 through the hinge 27. A first limiting plate 28 is fixedly connected to the side of the outer frame 6 away from the hinge 27, and a second limiting plate 29 is fixedly connected to the side of the installation opening 4 opposite to the outer frame 6. Lock holes 30 are formed in both the first limiting plate 28 and the second limiting plate 29. The lock rod 8 is inserted into the lock holes 30. By setting the lock rod 8, the outer frame 6 can be locked with the installation opening 4, enabling the staff to exert force more easily when stretching the pull handle 7. When the first collection box 9 needs to be replaced, first cut off the power supply, pull out the pull handle 7 to de-energize the electromagnet 3, then pull out the lock rod 8, and rotate the outer frame 6 to replace the first collection box 9. Embodiment 3

[0050] As Figures 1 - 12 shown in the figure, the following improvements are made to this embodiment based on Embodiment 1: Further, a blanking frame 31 is fixedly connected to the lower surface of the demagnetization bin 2 through bolts. The inside of the blanking frame 31 is communicated with the demagnetization bin 2. A screen 32 is fixedly connected inside the blanking frame 31. The screen 32 is inclined downward. A second collection box 33 and a third collection box 34 are placed at the bottom of the blanking frame 31. The third collection box 34 is located directly below the screen 32, and the second collection box 33 is located below the end of the screen 32 inclined downward. The demagnetized forage falls on the screen 32. By setting the screen 32, the broken soil in the forage can fall into the third collection box 34, and the forage then falls into the second collection box 33 along the screen 32.

[0051] In summary, the working process of the present utility model is as follows: Turn on the pump 11. Under the action of the pump 11, the forage in the feed pipe 1 enters through the feed port 12 and is discharged through the discharge port 13 into the demagnetization bin 2;

[0052] By connecting the plug on the electrical wire 15 to an external power supply, the first electrical sheet 14 is energized. The first electrical sheet 14 provides power for the second electrical sheet 17. The electromagnet 3 is energized through the second electrical sheet 17 and generates a magnetic force. During the process of the forage falling in the demagnetization bin 2, the magnetic substances will be adsorbed by the electromagnet 3;

[0053] The demagnetized forage falls on the screen 32. By setting the screen 32, the broken soil in the forage can fall into the third collection box 34, and the forage then falls into the second collection box 33 along the screen 32;

[0054] When it is necessary to replace the first collection box 9 or clean and repair the electromagnet 3, first cut off the power supply, turn off the pump 11. The staff pulls the pull handle 7 outwards until the telescopic block 22 provided on the pull rod 20 slides out of the outer frame 6. After the telescopic block 22 slides out of the outer frame 6, it will be clamped to the outer frame 6 to prevent the pull handle 7 from automatically retracting. During the outward movement of the pull handle 7, the protective sleeve 5 will move outwards simultaneously with the pull handle 7. When the telescopic block 22 slides out of the outer frame 6, the protective sleeve 5 is pulled by the pull handle 7 into the outer frame 6. At this time, the first electrical sheet 14 and the second electrical sheet 17 stop contacting, and at the same time, the side of the electromagnet 3 away from the protective sleeve 5 is located above the opening of the first collection box 9. After the second electrical sheet 17 is powered off, the magnetic force of the electromagnet 3 disappears, and the magnetic substances on the electromagnet 3 will fall into the first collection box 9. Then, the locking rod 8 is pulled out, and the outer frame 6 is rotated to replace the first collection box 9 or clean and repair the electromagnet 3. The locking rod 8 provided can lock the outer frame 6 to the installation opening 4, enabling the staff to exert force better when stretching the pull handle 7;

[0055] When the pull handle 7 moves outwards, the tension spring 21 is compressed and contracted. When it is necessary to reset the pull handle 7, by pressing the reset rod 24, the reset rod 24 pushes the telescopic block 22 back into the pull rod 20. At this time, the tension spring 21 starts to reset and stretch, squeezing the protective sleeve 5 to drive the protective sleeve 5 to reset. After the protective sleeve 5 resets, the second electrical sheet 17 contacts the first electrical sheet 14 and gets powered, and the electromagnet 3 gets powered and generates magnetic force.

[0056] The above different embodiments can be combined, replaced, and used in combination with each other.

[0057] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0058] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mixed grass raw material demagnetization device, characterized in that: It comprises a feed pipe (1) and a demagnetization bin (2), wherein the feed pipe (1) is located above the demagnetization bin (2), and a mounting opening (4) is provided on one side of the demagnetization bin (2); It also comprises an electromagnet (3), the electromagnet (3) being located in the installation opening (4), the electromagnet (3) being provided with a protective cover (5), the protective cover (5) being fixedly connected to a pull-out structure on a side away from the electromagnet (3), the pull-out structure comprising an outer frame (6) and a pull-out handle (7), the pull-out handle (7) being slidably connected to the outer frame (6); A locking rod (8), wherein the outer frame (6) and the mounting opening (4) are locked together by means of the locking rod (8); A first collecting box (9), wherein the first collecting box (9) is detachably mounted on the outer frame (6).

2. A mixed grass material demagnetization device according to claim 1, characterized in that: The upper surface of the demagnetization bin (2) is fixedly connected to a support seat (10) by bolts; the interior of the support seat (10) is hollow and communicates with the interior of the demagnetization bin (2); the feed pipe (1) is fixedly connected to the upper surface of the support seat (10); a pump (11) is installed on the side of the feed pipe (1) close to the demagnetization bin (2); the pump (11) is provided with a feed port (12) and a discharge port (13); the feed port (12) is communicated with the interior of the feed pipe (1), and the discharge port (13) is communicated with the interior of the support seat (10).

3. A mixed grass material demagnetization device according to claim 1, characterized in that: A first electrical sheet (14) is installed on one side of the installation opening (4), the first electrical sheet (14) is electrically connected to an electrical wire (15), the other end of the electrical wire (15) passes through the installation opening (4) and extends to the outside and is fixedly connected to a plug, a slot (16) is provided on the side of the protective cover (5) opposite to the first electrical sheet (14), a second electrical sheet (17) is plugged into the slot (16), the second electrical sheet (17) is electrically connected to the electromagnet (3), and the second electrical sheet (17) is in contact with the first electrical sheet (14).

4. A mixed grass material demagnetization device according to claim 3, characterized in that: The protective cover (5) has two opposite surfaces provided with disassembly interfaces (18).

5. A mixed grass material demagnetization device according to claim 4, characterized in that: A docking port (19) is provided on the side of the protective cover (5) away from the electromagnet (3), and two ends of the pull-out handle (7) penetrate the outer frame (6) to extend to the interior and are plugged into the docking port (19).

6. A mixed grass material demagnetization device according to claim 5, characterized in that: A pull rod (20) is fixedly connected to the side of the pull handle (7) opposite to the outer frame (6), and the pull rod (20) is slidably connected to the outer frame (6). The other end of the pull rod (20) passes through the outer frame (6) and is fixedly connected to the protective cover (5). A tension spring (21) is fixedly connected to the side of the outer frame (6) opposite to the protective cover (5), and the two ends of the tension spring (21) are respectively fixedly connected to the outer frame (6) and the protective cover (5).

7. A mixed grass material demagnetization device according to claim 6, characterized in that: The tension spring (21) is sleeved on the pull rod (20); the pull rod (20) is provided with a telescopic block (22) on its rod body located between the outer frame (6) and the protective cover (5); a limiting member (23) is fixedly connected to the side of the outer frame (6) opposite to the pull handle (7); the limiting member (23) is symmetrically arranged on both sides of the pull rod (20); the limiting member (23) is slidably connected to a reset rod (24); and the reset rod (24) is adapted to the pull rod (20).

8. The mixed grass material demagnetization device according to claim 1, characterized in that: A socket (25) is provided on the side of the outer frame (6) opposite to the protective cover (5); a limit opening (26) is provided on the side of the demagnetizing bin (2) opposite to the protective cover (5); one side of the first collecting box (9) is inserted into the socket (25); the other side is located in the limit opening (26) and the lower surface abuts against the upper surface of the limit opening (26); the first collecting box (9) is located directly below the electromagnet (3).

9. The mixed grass material demagnetization device according to claim 1, characterized in that: A hinge (27) is fixedly connected to one side of the mounting opening (4); the outer frame (6) is rotatably connected to the mounting opening (4) via the hinge (27); a first limit plate (28) is fixedly connected to the side of the outer frame (6) away from the hinge (27); a second limit plate (29) is fixedly connected to the side of the mounting opening (4) opposite to the outer frame (6); a lock hole (30) is provided on each of the first limit plate (28) and the second limit plate (29); and the lock rod (8) is inserted into the lock hole (30).

10. The mixed grass material demagnetization device according to claim 1, characterized in that: A feeding frame (31) is fixedly connected to the lower surface of the demagnetization bin (2) by bolts. The interior of the feeding frame (31) is connected to the demagnetization bin (2). A screen (32) is fixedly connected to the inside of the feeding frame (31). The screen (32) is tilted downward. A second collection box (33) and a third collection box (34) are placed at the bottom of the feeding frame (31). The third collection box (34) is located directly below the screen (32). The second collection box (33) is located below the downward tilted end of the screen (32).

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