Wood chip roller screening machine capable of absorbing and removing ferrous materials

Abstract

The utility model relates to the field of wood chip roller screening machines, in particular to a wood chip roller screening machine capable of absorbing iron materials. The technical problems that according to screening equipment in the prior art, it is usually difficult to rapidly separate and screen out iron materials in wood and sundries, and the interior of a screening mechanism is inconvenient to maintain are solved. According to the technical scheme, the wood chip roller screening machine capable of absorbing and removing the iron materials comprises a conveying assembly; the device further comprises a supporting assembly, a screening assembly, a first iron attraction assembly, a second iron attraction assembly and a third iron attraction assembly. When the rotary drum rotates, iron materials in materials in the rotary drum can be adsorbed by a plurality of second magnet columns, so that the iron materials can be rapidly separated, when the rotary drum needs to be rotated, a gear rotates to drive a gear ring to rotate through the meshing effect, the rotary drum is rotated, and the iron materials in the materials in the rotary drum can be rapidly separated. When the interior of the roller needs to be maintained, the mounting discs are taken down from the inner walls of the front end and the rear end of the roller, and the technical problem is solved.

Description

Technical Field

[0001] The utility model belongs to the field of wood chip roller screens, and in particular relates to a wood chip roller screen capable of removing iron materials by absorption. Background Art

[0002] There are easily some iron pieces or nails in the wood and miscellaneous materials, and someone is needed to separate them out to prevent the processing equipment from being scratched or stuck. However, manual sorting not only takes a lot of time, increases the workers' workload, and reduces work efficiency, but also is prone to negligence during manual sorting, and cannot ensure that all the iron pieces are picked out. The screening equipment in the prior art usually finds it difficult to quickly separate and screen out the iron materials in wood and miscellaneous materials, and it is inconvenient to maintain the screening mechanism, which needs further improvement. Utility Model Content

[0003] In order to overcome the problem that screening equipment in the prior art is usually difficult to quickly separate and screen out iron materials from wood and miscellaneous materials, and it is inconvenient to maintain the screening mechanism.

[0004] The technical solution of the utility model is: a wood chip roller screen machine capable of removing ferrous materials, comprising a conveying assembly; further comprising a supporting assembly, a screening assembly, a first iron-absorbing assembly, a second iron-absorbing assembly and a third iron-absorbing assembly; support assemblies for supporting are arranged at the front and rear of the conveying assembly; a screening assembly for screening ferrous materials is arranged on the supporting assembly; a first iron-absorbing assembly and a second iron-absorbing assembly for absorbing iron are arranged on the conveying assembly; and a third iron-absorbing assembly for absorbing iron is arranged on the screening assembly.

[0005] Preferably, when in use, open the support assembly to rotate the screening assembly, then open the third magnetic assembly, place the wood and miscellaneous materials into the screening assembly through the third magnetic assembly, then close the third magnetic assembly, open the support assembly to rotate the screening assembly, the ferrous material will be attracted by the magnet on the third magnetic assembly, the wood and miscellaneous materials will fall on the conveying assembly, then open the conveying assembly to move the wood and miscellaneous materials to the right, and when the material passes through the first magnetic assembly and the second magnetic assembly, it will be attracted again by the magnets on the first magnetic assembly and the second magnetic assembly, thereby achieving three adsorptions of the ferrous material, and facilitating rapid cleaning and maintenance of the screening assembly, solving the problem that the screening equipment in the prior art is usually difficult to quickly separate and screen out the ferrous materials in the wood and miscellaneous materials, and it is inconvenient to maintain the screening mechanism.

[0006] Preferably, the conveying assembly includes a U-shaped plate and a belt conveyor; the inner wall of the U-shaped plate is provided with a belt conveyor, and opening the belt conveyor can facilitate the transfer of the screened materials.

[0007] Preferably, the support assembly includes a support block, a fixed body, a first slot body, a motor and a gear; support blocks are arranged on the left and right sides of the U-shaped plate; the upper end of the support block is fixedly connected to the fixed body; the front and rear ends of the fixed body are penetrated by a first slot body; the central axes of the two first slot bodies are collinear; the upper end of one of the fixed bodies is fixedly connected to the motor; a gear is fixedly connected to the output shaft of the motor, and when the screening assembly needs to be rotated, the motor is turned on to rotate the gear, and the screening assembly can be rotated.

[0008] Preferably, the screening assembly includes a drum, a gear ring, a limit ring, a mounting plate and a first handle; the inner walls of the two first trough bodies are movably provided with a drum; the outer wall of the drum is fixedly connected to two gear rings symmetrical about the center of the drum; the outer wall of the drum is also fixedly connected to two limit rings symmetrical about the center of the drum; the ends of the two gear rings away from each other are fitted with the ends of the two fixed bodies close to each other; the ends of the two limit rings close to each other are fitted with the ends of the two fixed bodies away from each other; the inner walls of the front and rear ends of the limit rings are threadedly mounted with mounting plates; the end of the mounting plate away from the center of the drum is fixedly connected to the first handle; the gear ring and the gear are meshed with each other, and when the drum needs to be rotated, the rotation of the gear can drive the gear ring to rotate through the meshing action, thereby realizing the rotation of the drum, and when the interior of the drum needs to be maintained, the mounting plate can be removed from the inner walls of the front and rear ends of the drum, thereby facilitating the maintenance of the interior of the drum.

[0009] Preferably, the first magnetic magnet assembly includes a second trough body, a movable block, a first electric cylinder and a magnetic magnet plate; two second trough bodies symmetrically arranged about the center of the right end face of the U-shaped plate are provided at the right edge of the upper end of the U-shaped plate; movable blocks are movably provided on the inner walls of the two second trough bodies; the movable block is in an inverted "U" shape; the upper end of the movable block is fixedly connected to the first electric cylinder; the lower end of the output shaft of the first electric cylinder passes through the movable block and is fixedly connected to the magnetic magnet plate, the movable block is placed on the inner walls of the two second trough bodies, and then the first electric cylinder is turned on to move the magnetic magnet plate downward to a suitable height, when the material on the belt conveyor passes through the magnetic magnet plate, the iron material therein will be adsorbed by the magnetic magnet plate, thereby realizing secondary screening of the iron material in the material.

[0010] Preferably, the second magnet assembly includes a third slot, a movable frame, a second handle, a screw hole, a first threaded column and a first magnet column; the third slot is penetrated at the front and rear ends of the U-shaped plate; a movable frame is movably provided on the inner wall of the third slot; the second handle is fixedly connected to the front end of the movable frame; screw holes are penetrated at the front and rear ends of the movable frame; the first threaded column is threadedly installed on the inner wall of the screw hole; the first magnet column is fixedly connected to one end of the two first threaded columns close to each other, and the first threaded column can be manually rotated to facilitate the removal of the first magnet column from the screw hole, and when the conveyor belt of the belt conveyor moves downward, the tiny iron material remaining on the conveyor belt can be adsorbed by the first magnet column, and the adsorption effect on the iron material can be improved through adsorption.

[0011] Preferably, the third magnetic magnet assembly includes a fourth slot body, a fifth slot body, a smooth column, a second threaded column, an internally threaded cylinder, a first groove, a second electric cylinder, a movable door, a sixth slot body, a second magnetic magnet column, a sleeve, a through hole and a second groove; the inner and outer walls of the drum are penetrated by the fourth slot body; the front and rear ends of the drum are penetrated by the fifth slot body; the fifth slot body and the fourth slot body are interconnected; the inner wall of the fifth slot body is movably provided with a smooth column; the front and rear ends of the smooth column are fixedly connected to the second threaded column; the outer wall of the second threaded column is threadedly installed with an internally threaded cylinder; the front and rear ends of the inner wall of the fourth slot body are provided with a first groove; the inner wall of the first groove is fixedly connected to the second electric cylinder; the front and rear ends of the inner wall of the fourth slot body are movably provided with movable doors; the left and right ends of the movable door are penetrated by the sixth slot body; the front and rear ends of the inner wall of the sixth slot body are fixedly connected to evenly distributed second magnetic magnet columns; the outer walls of multiple second magnetic magnet columns are sleeved There is a sleeve block; through holes are opened at the front and rear ends of the movable door; the inner wall of the through hole fits with the outer wall of the smooth column; the front and rear ends of the movable door are opened with a second groove; the inner wall of the second groove fits with the outer wall of the output shaft of the second electric cylinder, the movable door is placed at the front and rear ends of the inner wall of the fourth slot body, and then the smooth column is inserted into the fifth slot body, and the second threaded column is threadedly installed on the internal threaded cylinder, so that the movable door can rotate along the outer wall of the smooth column, which is convenient for feeding into the drum through the fourth slot body. When the movable door needs to be fixed, the second groove is matched with the first groove, and then two second electric cylinders facing each other are opened so that the output shaft of the second electric cylinder extends into the inner wall of the second groove, and the movable door can be fixed to the inner wall of the fourth slot body. In this way, when the drum rotates, the iron material in the material therein will be adsorbed by multiple second magnet columns, thereby realizing rapid separation of the iron material.

[0012] Beneficial effects of the utility model:

[0013] 1. By placing the movable door at the front and rear ends of the inner wall of the fourth trough body, and then inserting the smooth column into the fifth trough body, and threading the second threaded column on the inner threaded cylinder, the movable door can rotate along the outer wall of the smooth column, which is convenient for feeding into the drum through the fourth trough body. When the movable door needs to be fixed, the second groove is matched with the first groove, and then the two second electric cylinders arranged opposite to each other are opened so that the output shaft of the second electric cylinder extends into the inner wall of the second groove, and the movable door can be fixed to the inner wall of the fourth trough body. In this way, when the drum rotates, the iron material in the material therein will be adsorbed by the multiple second magnet columns, so that the iron material can be quickly separated. When the drum needs to be rotated, the gear rotation can drive the gear ring to rotate through the meshing action, so as to realize the rotation of the drum. When the interior of the drum needs to be maintained, the installation plate can be removed from the inner walls of the front and rear ends of the drum, so as to facilitate the maintenance of the interior of the drum, which solves the problem that the screening equipment in the prior art is usually difficult to quickly separate and screen out the iron materials in wood and miscellaneous materials, and it is inconvenient to maintain the screening mechanism;

[0014] 2. By placing the movable block on the inner wall of the two second trough bodies, and then turning on the first electric cylinder to move the magnet plate downward to a suitable height, when the material on the belt conveyor passes through the magnet plate, the iron material therein will be adsorbed by the magnet plate, thereby realizing secondary screening of the iron material in the material;

[0015] 3. The first magnet column can be easily removed from the screw hole by manually rotating the first threaded column. When the conveyor belt of the belt conveyor moves downward, the tiny iron materials remaining on the conveyor belt can be adsorbed by the first magnet column. Through three adsorptions, the adsorption effect on the iron materials can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 What is shown is a three-dimensional structural schematic diagram of a wood chip roller screen machine capable of removing iron materials according to the utility model;

[0017] Figure 2 The three-dimensional structure schematic diagram of the third iron-absorbing component of a wood chip roller screen machine capable of absorbing iron materials according to the utility model is shown;

[0018] Figure 3 The present invention shows a schematic diagram of the three-dimensional split structure of a conveying component, a first iron-absorbing component and a second iron-absorbing component of a wood chip roller screen machine capable of absorbing iron materials;

[0019] Figure 4 The three-dimensional structure schematic diagram of the support assembly of a wood chip roller screen machine capable of removing iron materials according to the utility model is shown;

[0020] Figure 5The three-dimensional structure schematic diagram of the screening component of a wood chip roller screening machine capable of removing iron materials according to the utility model is shown;

[0021] Figure 6 What is shown is a three-dimensional disassembled structural schematic diagram of the third iron-absorbing component of a wood chip roller screen machine capable of absorbing iron materials according to the utility model.

[0022] The marks in the attached drawings are: 1. conveying assembly; 101. U-shaped plate; 102. belt conveyor; 2. supporting assembly; 201. supporting block; 202. fixed body; 203. first tank body; 204. motor; 205. gear; 3. screening assembly; 301. roller; 302. gear ring; 303. limit ring; 304. mounting plate; 305. first handle; 4. first magnetic absorption assembly; 401. second tank body; 402. movable block; 403. first electric cylinder; 404. magnetic absorption stone plate; 5. second magnetic absorption assembly ;501, third slot;502, movable frame;503, second handle;504, screw hole;505, first threaded column;506, first magnet column;6, third magnet assembly;601, fourth slot;602, fifth slot;603, smooth column;604, second threaded column;605, internal threaded cylinder;606, first groove;607, second electric cylinder;608, movable door;609, sixth slot;610, second magnet column;611, sleeve;612, through hole;613, second groove. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0024] See also Figure 1 and 2 The utility model provides an embodiment: a wood chip roller screen machine capable of removing ferrous materials, comprising a conveying assembly 1; further comprising a supporting assembly 2, a screening assembly 3, a first iron-absorbing assembly 4, a second iron-absorbing assembly 5 and a third iron-absorbing assembly 6; a supporting assembly 2 for supporting is provided at the front and rear of the conveying assembly 1; a screening assembly 3 for screening ferrous materials is provided on the supporting assembly 2; a first iron-absorbing assembly 4 and a second iron-absorbing assembly 5 for absorbing iron are provided on the conveying assembly 1; a third iron-absorbing assembly 6 for absorbing iron is provided on the screening assembly 3.

[0025] See also Figure 2 In this embodiment, the conveying assembly 1 includes a U-shaped plate 101 and a belt conveyor 102 ; the belt conveyor 102 is disposed on the inner wall of the U-shaped plate 101 .

[0026] See also Figure 4In this embodiment, the support assembly 2 includes a support block 201, a fixed body 202, a first slot body 203, a motor 204 and a gear 205; support blocks 201 are arranged on the left and right sides of the U-shaped plate 101; the upper end of the support block 201 is fixedly connected to the fixed body 202; the first slot body 203 is penetrated through the front and rear ends of the fixed body 202; the central axes of the two first slot bodies 203 are collinear; the upper end of one of the fixed bodies 202 is fixedly connected to the motor 204; and the gear 205 is fixedly connected to the output shaft of the motor 204.

[0027] See also Figure 5 In this embodiment, the screening component 3 includes a roller 301, a gear ring 302, a limiting ring 303, a mounting plate 304 and a first handle 305; the inner walls of the two first trough bodies 203 are movably provided with the roller 301; the outer wall of the roller 301 is fixedly connected with two gear rings 302 symmetrical about the center of the roller 301; the outer wall of the roller 301 is also fixedly connected with two limiting rings 303 symmetrical about the center of the roller 301; the ends of the two gear rings 302 away from each other are fitted with the ends of the two fixed bodies 202 close to each other; the ends of the two limiting rings 303 close to each other are fitted with the ends of the two fixed bodies 202 away from each other; the inner walls of the front and rear ends of the limiting rings 303 are threadedly installed with mounting plates 304; the end of the mounting plate 304 away from the center of the roller 301 is fixedly connected with the first handle 305; the gear ring 302 and the gear 205 are meshed with each other.

[0028] See also Figure 3 In this embodiment, the first magnetic magnet assembly 4 includes a second slot body 401, a movable block 402, a first electric cylinder 403 and a magnetic magnet plate 404; two second slot bodies 401 symmetrical about the center of the right end surface of the U-shaped plate 101 are provided at the right edge of the upper end of the U-shaped plate 101; movable blocks 402 are movably arranged on the inner walls of the two second slot bodies 401; the movable blocks 402 are in an inverted "U" shape; the upper end of the movable block 402 is fixedly connected to the first electric cylinder 403; the lower end of the output shaft of the first electric cylinder 403 passes through the movable block 402 and is fixedly connected to the magnetic magnet plate 404; the second magnetic magnet assembly Component 5 includes a third slot body 501, a movable frame 502, a second handle 503, a screw hole 504, a first threaded column 505 and a first magnet column 506; the third slot body 501 is penetrated at the front and rear ends of the U-shaped plate 101; the movable frame 502 is movably provided on the inner wall of the third slot body 501; the second handle 503 is fixedly connected to the front end of the movable frame 502; screw holes 504 are penetrated at the front and rear ends of the movable frame 502; the first threaded column 505 is threadedly installed on the inner wall of the screw hole 504; the first magnet column 506 is fixedly connected to one end of the two first threaded columns 505 close to each other.

[0029] See also Figure 6In this embodiment, the third magnet assembly 6 includes a fourth slot body 601, a fifth slot body 602, a smooth column 603, a second threaded column 604, an internally threaded barrel 605, a first groove 606, a second electric cylinder 607, a movable door 608, a sixth slot body 609, a second magnet column 610, a sleeve 611, a through hole 612 and a second groove 613; the inner and outer walls of the drum 301 are penetrated with the fourth slot body 601; the front and rear ends of the drum 301 are penetrated with the fifth slot body 602; the fifth slot body 602 and the fourth slot body 601 are mutually connected; the inner wall of the fifth slot body 602 is movably provided with a smooth column 603; the front and rear ends of the smooth column 603 are both fixedly connected with the second threaded column 604; the outer wall of the second threaded column 604 is threadedly installed with an internally threaded barrel 6 05; The front and rear ends of the inner wall of the fourth slot body 601 are provided with a first groove 606; the inner wall of the first groove 606 is fixedly connected with a second electric cylinder 607; the front and rear ends of the inner wall of the fourth slot body 601 are movably provided with movable doors 608; the left and right ends of the movable door 608 are penetrated with a sixth slot body 609; the front and rear ends of the inner wall of the sixth slot body 609 are fixedly connected with uniformly distributed second magnet columns 610; the outer walls of the plurality of second magnet columns 610 are sleeved with sleeve blocks 611; the front and rear ends of the movable door 608 are penetrated with a through hole 612; the inner wall of the through hole 612 is fitted with the outer wall of the smooth column 603; the front and rear ends of the movable door 608 are both provided with a second groove 613; the inner wall of the second groove 613 is fitted with the outer wall of the output shaft of the second electric cylinder 607.

[0030] When working, first, place the movable door 608 at the front and rear ends of the inner wall of the fourth trough 601, then insert the smooth column 603 into the fifth trough 602, and thread the second threaded column 604 on the inner threaded cylinder 605, so that the movable door 608 can rotate along the outer wall of the smooth column 603, which is convenient for feeding into the drum 301 through the fourth trough 601. When the movable door 608 needs to be fixed, the second groove 613 is aligned with the first groove 606;

[0031] Then, the two second electric cylinders 607 facing each other are turned on so that the output shafts of the second electric cylinders 607 extend into the inner wall of the second groove 613, and the movable door 608 can be fixed to the inner wall of the fourth tank body 601. When the screening component 3 needs to be rotated, the motor 204 is turned on to rotate the gear 205, and the screening component 3 can be rotated. When the drum 301 rotates, the iron materials in the material therein will be adsorbed by the multiple second magnet columns 610, so that the iron materials can be quickly separated.

[0032] After that, the material will fall onto the conveyor belt of the belt conveyor 102. Then, the belt conveyor 102 is turned on to facilitate the transfer of the once screened material. The movable block 402 is placed on the inner wall of the two second troughs 401. Then, the first electric cylinder 403 is turned on to move the magnet plate 404 downward to a suitable height. When the material on the belt conveyor 102 passes through the magnet plate 404, the iron material therein will be adsorbed by the magnet plate 404, thereby realizing the secondary screening of the iron material in the material.

[0033] By manually rotating the first threaded column 505, the first magnet column 506 can be easily removed from the screw hole 504. When the conveyor belt of the belt conveyor 102 moves downward, the tiny iron materials remaining on the conveyor belt can be adsorbed by the first magnet column 506. Through three adsorptions, the adsorption effect of the iron materials can be improved. When the interior of the drum 301 needs to be maintained, the mounting plate 304 can be removed from the inner walls at the front and rear ends of the drum 301, thereby facilitating the maintenance of the interior of the drum 301.

[0034] Through the above steps, when in use, open the support component 2 to rotate the screening component 3, then open the third magnetic component 6, place the wood and miscellaneous materials into the screening component 3 through the third magnetic component 6, then close the third magnetic component 6, open the support component 2 to rotate the screening component 3, the iron material will be attracted by the magnet on the third magnetic component 6, the wood and miscellaneous materials will fall on the conveying component 1, and then open the conveying component 1 to make the wood and miscellaneous materials move to the right, and when the material passes through the first magnetic component 4 and the second magnetic component 5, it will be attracted again by the magnets on the first magnetic component 4 and the second magnetic component 5, thereby realizing the three-time adsorption of the iron material, and facilitating the rapid cleaning and maintenance of the screening component 3, solving the problem that the screening equipment in the prior art is usually difficult to quickly separate and screen out the iron materials in the wood and miscellaneous materials, and it is inconvenient to maintain the screening mechanism.

[0035] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A wood chip roller screen capable of removing ferrous materials, comprising a conveying assembly (1); characterized in that: It also includes a support component (2), a screening component (3), a first iron-absorbing component (4), a second iron-absorbing component (5) and a third iron-absorbing component (6); a support component (2) for supporting is provided at the front and rear of the conveying component (1); and a screening component (3) for screening iron materials is provided on the support component (2); The conveying assembly (1) is provided with a first iron-absorbing assembly (4) and a second iron-absorbing assembly (5) for absorbing iron; A third iron-absorbing component (6) for absorbing iron is arranged on the screening component (3).

2. A wood chip roller screen capable of removing iron materials according to claim 1, characterized in that: The conveying assembly (1) comprises a U-shaped plate (101) and a belt conveyor (102); the belt conveyor (102) is arranged on the inner wall of the U-shaped plate (101).

3. A wood chip roller screen capable of removing iron materials according to claim 2, characterized in that: The support assembly (2) comprises a support block (201), a fixed body (202), a first slot body (203), a motor (204) and a gear (205); support blocks (201) are arranged on the left and right sides of the U-shaped plate (101); the upper end of the support block (201) is fixedly connected to the fixed body (202); the first slot body (203) is penetrated through the front and rear ends of the fixed body (202); the central axes of the two first slot bodies (203) are collinear; the upper end of one of the fixed bodies (202) is fixedly connected to the motor (204); and the gear (205) is fixedly connected to the output shaft of the motor (204).

4. A wood chip roller screen capable of removing iron materials according to claim 3, characterized in that: The screening assembly (3) comprises a roller (301), a gear ring (302), a limiting ring (303), a mounting plate (304) and a first handle (305); the rollers (301) are movably arranged on the inner walls of the two first trough bodies (203); The outer wall of the drum (301) is fixedly connected with two toothed rings (302) which are symmetrical about the center of the drum (301); The outer wall of the drum (301) is also fixedly connected with two limiting rings (303) symmetrically about the center of the drum (301); One end of the two gear rings (302) that is away from each other is in contact with one end of the two fixed bodies (202) that is close to each other; one end of the two limit rings (303) that is close to each other is in contact with one end of the two fixed bodies (202) that is away from each other; the inner walls of the front and rear ends of the limit rings (303) are threadedly mounted with mounting plates (304); one end of the mounting plate (304) that is away from the center of the drum (301) is fixedly connected with a first handle (305); the gear ring (302) and the gear (205) are meshed with each other.

5. A wood chip roller screen capable of removing iron materials according to claim 2, characterized in that: The first magnetic magnet assembly (4) comprises a second slot body (401), a movable block (402), a first electric cylinder (403) and a magnetic magnet plate (404); two second slot bodies (401) symmetrical about the center of the right end face of the U-shaped plate (101) are provided at the right edge of the upper end of the U-shaped plate (101); movable blocks (402) are movably arranged on the inner walls of the two second slot bodies (401); the movable blocks (402) are in an inverted "U" shape; the upper end of the movable block (402) is fixedly connected to the first electric cylinder (403); the lower end of the output shaft of the first electric cylinder (403) passes through the movable block (402) and is fixedly connected to the magnetic magnet plate (404).

6. A wood chip roller screen capable of removing iron materials according to claim 2, characterized in that: The second magnetic magnet assembly (5) comprises a third slot body (501), a movable frame (502), a second handle (503), a screw hole (504), a first threaded column (505) and a first magnetic magnet column (506); the third slot body (501) is penetrated at the front and rear ends of the U-shaped plate (101); the movable frame (502) is movably arranged on the inner wall of the third slot body (501); the second handle (503) is fixedly connected to the front end of the movable frame (502); the screw hole (504) is penetrated at the front and rear ends of the movable frame (502); the first threaded column (505) is threadedly installed on the inner wall of the screw hole (504); and the first magnetic magnet column (506) is fixedly connected to the ends of the two first threaded columns (505) close to each other.

7. A wood chip roller screen capable of removing iron materials according to claim 4, characterized in that: The third magnetic magnet assembly (6) comprises a fourth slot body (601), a fifth slot body (602), a smooth column (603), a second threaded column (604), an internally threaded barrel (605), a first groove (606), a second electric cylinder (607), a movable door (608), a sixth slot body (609), a second magnetic magnet column (610), a sleeve (611), a through hole (612) and a second groove (613); the inner and outer walls of the drum (301) are penetrated by the fourth slot body (601); the front and rear ends of the drum (301) are penetrated by the fifth slot body (602); the fifth slot body (602) and the fourth slot body (601) are mutually connected; the inner wall of the fifth slot body (602) is movably provided with a smooth column (603); the front and rear ends of the smooth column (603) are both fixedly connected with the second threaded column (604); the outer wall of the second threaded column (604) is threadedly mounted with an internally threaded barrel ( 605); first grooves (606) are provided at the front and rear ends of the inner wall of the fourth groove body (601); a second electric cylinder (607) is fixedly connected to the inner wall of the first groove (606); movable doors (608) are movably provided at the front and rear ends of the inner wall of the fourth groove body (601); a sixth groove body (609) is provided through the left and right ends of the movable door (608); second magnet columns (610) are fixedly connected to the front and rear ends of the inner wall of the sixth groove body (609) with uniformly distributed second magnet columns (610); a plurality of second magnet columns (610) are sleeved with sleeve blocks (611); through holes (612) are provided through the front and rear ends of the movable door (608); the inner wall of the through hole (612) is in contact with the outer wall of the smooth column (603); second grooves (613) are provided at the front and rear ends of the movable door (608); the inner wall of the second groove (613) is in contact with the outer wall of the output shaft of the second electric cylinder (607).

Images