Four-shaft shredding machine

Abstract

The utility model relates to the technical field of shredding machines, and discloses a four-shaft shredding machine. Comprising a machine box, a transmission seat is fixedly connected to the left side face of the machine box, a motor is fixedly connected to the left side face of the transmission seat, a first shredding roller is fixedly connected to the output end of the motor, and a second shredding roller is rotationally connected to the position, located in front of the first shredding roller, in the transmission seat; a first shredding roller is arranged in the transmission seat, a second shredding roller is arranged in the transmission seat, a fourth shredding roller is rotationally connected to the position, located above the first shredding roller, in the transmission seat, a third shredding roller is rotationally connected to the position, located in front of the second shredding roller, in the transmission seat, and a feeding groove is formed in the front surface of the machine box. When dust and chippings generated in the shredding process are extracted and removed, leakage is avoided when flying dust and waste chippings generated in the material shredding process are extracted, meanwhile, the fed to-be-shredded materials are guided, the phenomenon of feeding deviation is avoided, and the machining efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of shredders, in particular to a four-axis shredder. Background Art

[0002] A shredder is a machine used for fine crushing, generally used to process unprocessed raw materials or scraps to make them smaller in size. A representative example is to shred plastic or rubber scraps and use them as raw materials for melting and granulation to remake plastic bottles, tires or trash cans, etc. Shredders are used in the plastic recycling industry and are often used to crush waste large-diameter PE plastic pipes, bales of plastic film, large piles of plastic sheets and head materials. For example, the patent subject "A four-axis shredder" and application number "201922079524.5" can be used to set a dust removal mechanism in the feed hopper to absorb and reduce the dust generated during the shredding process to ensure the quality of the processing environment. However, the feeding slot of the chassis cannot be blocked, resulting in leakage when extracting dust and waste generated by the shredded materials, reducing the dust removal effect. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a four-axis shredder, which can extract and remove dust and debris generated during the shredding process, avoid leakage when extracting dust and waste debris generated by the shredded materials, and guide the fed materials to be shredded to avoid the phenomenon of feeding deviation, thereby improving processing efficiency and solving the above-mentioned technical problems.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: comprising a chassis, a transmission seat is fixedly connected to the left side of the chassis, a motor is fixedly connected to the left side of the transmission seat, a shredding roller 1 is fixedly connected to the output end of the motor, the interior of the transmission seat is located in front of the shredding roller 1 and is rotatably connected to the shredding roller 2, the interior of the transmission seat is located above the shredding roller 1 and is rotatably connected to the shredding roller 4, the interior of the transmission seat is located in front of the shredding roller 2 and is rotatably connected to the shredding roller 3, and a feed trough is provided on the front surface of the chassis;

[0005] The inside of the feed trough is rotatably connected with a movable rod, the side surface of the movable rod is fixedly connected with a connecting block, the front surface of the connecting block is fixedly connected with a sealing plate, the rear surface of the connecting block is fixedly connected with a material guide plate, the rear surface of the sealing plate is movably connected with a pull rod through a bearing, and the end of the pull rod away from the sealing plate is fixedly connected with a movable plug;

[0006] A dust extraction net cylinder seat is fixedly connected to the upper surface of the chassis, an exhaust fan is arranged inside the dust extraction net cylinder seat, an L-shaped duct is fixedly connected to the side surface of the dust extraction net cylinder seat, and one end of the L-shaped duct away from the dust extraction net cylinder seat is connected to the pull rod.

[0007] Through the above technical scheme, in the process of shredding materials, the air inside the L-shaped duct is continuously extracted through the vacuum fan to form a negative pressure at the connection between the inside and the pull rod, and the movable plug is pulled upward, so that the pull rod pulls the sealing plate backward to seal the feed chute, so that the chassis forms a closed box when the material is shredded, avoiding leakage when extracting dust and waste generated by the shredded material, thereby improving the dust removal effect of the four-axis shredder.

[0008] As a preferred technical solution of the utility model, a slide groove is provided inside the transmission seat, a spring 1 is fixedly connected inside the slide groove, a slider is fixedly connected to the end of the spring 1 away from the slide groove, and the right side surface of the slider is rotationally connected to the shredding roller three and the shredding roller four respectively.

[0009] Through the above technical scheme, the shredding roller three and the shredding roller four are moved to the two sides of the shredding roller one and the shredding roller two with the shredding roller one and the shredding roller two as the axis. When the four rollers shred materials of different sizes, the distance between the shredding roller three and the shredding roller four can be adjusted to avoid the phenomenon that large-volume materials are difficult to shred.

[0010] As a preferred technical solution of the utility model, one end of the shredding roller 1 close to the transmission seat is fixedly connected to gear 1, and one end of the shredding roller 2 close to the transmission seat is fixedly connected to gear 2, and gear 2 is meshed with gear 1.

[0011] Through the above technical solution, the meshing of gear one and gear two is utilized to enable the shredding roller one and the shredding roller two to rotate in relative directions, thereby performing secondary shredding on the material.

[0012] As the preferred technical solution of the utility model, one end of the shredding roller three close to the transmission seat is fixedly connected to gear three, and gear three is meshed with gear two, and one end of the shredding roller four close to the transmission seat is fixedly connected to gear four, and gear four is meshed with gear one.

[0013] Through the above technical solution, by utilizing the meshing of gear three with gear two and the meshing of gear four with gear one, shredding roller one, shredding roller two, shredding roller three and shredding roller four can be driven by the same end head, thereby reducing the energy consumption of the four-axis shredder.

[0014] As a preferred technical solution of the utility model, the side surfaces of the shredding roller two and the shredding roller four are evenly distributed with shredding knife groups, the side surfaces of the shredding roller one and the shredding roller three are evenly distributed with metal cone edge plates, the side surfaces of the metal cone edge plates are fixedly connected with spring two, the end of the spring two away from the metal cone edge plate is fixedly connected with a sharpening plate, and the sharpening plate and the metal cone edge plate are cross-distributed with the shredding knife groups.

[0015] Through the above technical scheme, the shredding knife group and the metal cone edge plate are used to cut and shred the material. Since the shredding knife group and the metal cone edge plate are relatively staggeredly distributed on the surfaces of the shredding rollers two and three and the shredding rollers one and four, the material can be cut and shredded horizontally and vertically, thereby improving the shredding efficiency. Meanwhile, during the shredding process, since the grinding plate and the metal cone edge plate are cross-distributed with the shredding knife group, the shredding knife group and the side surface of the grinding plate are rubbed, so that the shredding knife group is always kept sharp. At the same time, the debris and dust attached to the surface of the shredding knife group can be scraped off, thereby improving the shredding effect of the four-axis shredder.

[0016] As the preferred technical solution of the utility model, a partition net is fixedly connected to the inside of the dust extraction net cylinder seat, and the partition net is located below the L-shaped duct, and a dust collecting hopper is fixedly connected to the lower surface of the dust extraction net cylinder seat, and the dust collecting hopper is located above the shredding roller three and the shredding roller four.

[0017] Through the above technical solution, when extracting dust and debris, the L-shaped duct and the dust guide pipe are separated by a separation net to prevent dust and debris from floating into the interior of the L-shaped duct.

[0018] As a preferred technical solution of the utility model, a dust guide pipe is fixedly connected to the side surface of the dust extraction net cylinder seat, and the dust guide pipe is located below the partition net, and a threaded buckle is sleeved on one end of the dust guide pipe away from the dust extraction net cylinder seat.

[0019] Through the above technical solution, the extracted dust and debris are introduced into the interior of the dust collecting tank by means of the dust guide pipe, and are collected for centralized treatment.

[0020] As an optimal technical solution of the utility model, the right side surface of the chassis is fixedly connected with a limiting arc ring, the inner part of the limiting arc ring is snap-connected with a dust collecting tank, the top of the dust collecting tank is fixedly connected with a threaded connection seat, and the threaded connection seat is threadedly connected with a threaded buckle, and the side surface of the dust collecting tank is fixedly connected with a vacuum pump 2.

[0021] Through the above technical solution, the dust and debris inside the dust guide pipe are sucked into the interior of the dust collecting tank by using the second vacuum pump, and the threaded connection seat is threadedly connected to the threaded buckle ring. After the shredding process is completed, the threaded buckle ring can be twisted to disassemble the dust collecting tank and process the collected dust and debris.

[0022] Compared with the prior art, the utility model provides a four-axis shredder, which has the following beneficial effects:

[0023] 1. The utility model starts the vacuum pump to extract the air inside the chassis and the L-shaped duct by providing an L-shaped duct, a sealing plate, a pull rod and a movable plug, and continuously extracts the air inside the L-shaped duct to form a negative pressure state at the connection between the inside and the pull rod, and utilizes the pressure difference to move the movable plug to the bent end of the L-shaped duct, thereby driving the pull rod to move to the inside of the L-shaped duct, pulling the sealing plate backward to swing it backward to seal the feed chute, so that the chassis forms a closed box when the material is shredded, avoiding leakage when dust and waste generated by extracting the shredded material, and at the same time, the swing of the sealing plate drives the movable rod to deflect backward, so that the guide plate swings downward to drop the material to be shredded onto the surface of the shredding roller three and the shredding roller four for shredding processing, thereby avoiding the phenomenon of feeding deviation and improving processing efficiency.

[0024] 2. The utility model provides a chute, a slider and a spring 1, so that the material falls onto the surface of the shredding roller 3 and the shredding roller 4, and squeezes the shredding roller 3 and the shredding roller 4, so that the shredding roller 3 and the shredding roller 4 move to both sides of the shredding roller 1 and the shredding roller 2 with the shredding roller 1 and the shredding roller 2 as the axis, so that the slider squeezes the spring 1 and moves to the bottom end of the chute, and the distance between the shredding roller 3 and the shredding roller 4 can be adjusted when the four rollers shred materials of different sizes, so as to avoid the phenomenon that large-volume materials are difficult to shred. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 This is a schematic diagram of the sealing plate connection structure of the utility model;

[0027] Figure 3 It is a schematic diagram of the pull rod splitting structure of the utility model;

[0028] Figure 4 This is a schematic diagram of the disassembled structure of the dust extraction net cylinder seat of the utility model;

[0029] Figure 5 This is a schematic diagram of the internal structure of the chassis side of the utility model;

[0030] Figure 6 This is a schematic diagram of the structure of the shredding roller of the utility model;

[0031] Figure 7 for Figure 1 Schematic diagram of the structure at point A in the middle.

[0032] Among them: 1. Chassis; 2. Transmission seat; 3. Motor; 4. Shredder roller one; 5. Shredder roller two; 6. Shredder roller three; 7. Shredder roller four; 8. Slide; 9. Slider; 10. Spring one; 11. Gear one; 12. Gear two; 13. Gear three; 14. Gear four; 15. Shredder knife group; 16. Metal cone edge plate; 17. Spring two; 18. Sharpening plate; 19. Feed trough; 20. Movable rod; 21. Connecting block; 22. Sealing plate; 23. Guide plate; 24. Pull rod; 25. Moving plug; 26. Dust extraction net cylinder seat; 27. L-shaped duct; 28. Vacuum pump one; 29. ​​Separation net; 30. Dust hopper; 31. Dust guide pipe; 32. Limiting arc ring; 33. Dust collection tank; 34. Vacuum pump two; 35. Threaded connection seat; 36. Threaded buckle ring. DETAILED DESCRIPTION

[0033] The following is a further detailed description of the implementation of the present utility model in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0034] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] See also Figure 1-4A four-axis shredder comprises a chassis 1, a transmission seat 2 is fixedly connected to the left side of the chassis 1, a motor 3 is fixedly connected to the left side of the transmission seat 2, a shredding roller 1 4 is fixedly connected to the output end of the motor 3, the interior of the transmission seat 2 is located in front of the shredding roller 1 4 and is rotatably connected to the shredding roller 2 5, the interior of the transmission seat 2 is located above the shredding roller 1 4 and is rotatably connected to the shredding roller 4 7, the interior of the transmission seat 2 is located in front of the shredding roller 2 5 and is rotatably connected to the shredding roller 3 6, and a feed trough 19 is provided on the front surface of the chassis 1;

[0037] A movable rod 20 is rotatably connected inside the feed trough 19, a connecting block 21 is fixedly connected to the side surface of the movable rod 20, a sealing plate 22 is fixedly connected to the front surface of the connecting block 21, a material guide plate 23 is fixedly connected to the rear surface of the connecting block 21, a pull rod 24 is movably connected to the rear surface of the sealing plate 22 through a bearing, and a movable plug 25 is fixedly connected to the end of the pull rod 24 away from the sealing plate 22;

[0038] A dust extraction net cylinder seat 26 is fixedly connected to the upper surface of the chassis 1, and an air extractor 28 is arranged inside the dust extraction net cylinder seat 26. An L-shaped duct 27 is fixedly connected to the side surface of the dust extraction net cylinder seat 26, and one end of the L-shaped duct 27 away from the dust extraction net cylinder seat 26 is sleeved with the pull rod 24.

[0039] In the process of shredding the material, the material to be shredded is put into the inside of the chassis 1 from the feed trough 19 and placed on the surface of the guide plate 23. The external power supply is connected to start the vacuum pump 28 to extract the air inside the chassis 1 and the L-shaped duct 27. The air inside the L-shaped duct 27 is continuously extracted to form a negative pressure state at the connection between the inside and the pull rod 24. The pressure difference is used to move the movable plug 25 to the bent end of the L-shaped duct 27, thereby driving the pull rod 24 to the L-shaped duct 27. The sealing plate 22 moves inside and pulls the sealing plate 22 backward, so that it swings backward to seal the feed slot 19, so that the chassis 1 forms a closed box when the material is shredded, avoiding leakage when the dust and waste generated by the shredded material are extracted. At the same time, the swing of the sealing plate 22 drives the movable rod 20 to deflect backward, so that the guide plate 23 swings downward to drop the material to be shredded onto the surface of the shredding roller three 6 and the shredding roller four 7 for shredding processing, thereby avoiding the phenomenon of feeding deviation and improving processing efficiency.

[0040] See also Figure 5 A slide groove 8 is provided inside the transmission seat 2, and a spring 10 is fixedly connected inside the slide groove 8. A slider 9 is fixedly connected to one end of the spring 10 away from the slide groove 8, and the right side of the slider 9 is rotatably connected to the shredding roller three 6 and the shredding roller four 7 respectively.

[0041] When the material is shredded, the material falls onto the surface of the shredding roller three 6 and the shredding roller four 7, squeezing the shredding roller three 6 and the shredding roller four 7, so that the shredding roller three 6 and the shredding roller four 7 move to both sides of the shredding roller one 4 and the shredding roller two 5 with the shredding roller one 4 and the shredding roller two 5 as the axis, so that the slider 9 squeezes the spring one 10 and moves to the bottom end of the slide 8, and the distance between the shredding roller three 6 and the shredding roller four 7 can be adjusted when the four rollers shred materials of different sizes, so as to avoid the phenomenon that large-volume materials are difficult to shred.

[0042] See also Figure 5 One end of the shredding roller 1 4 close to the transmission seat 2 is fixedly connected to a gear 11, and one end of the shredding roller 2 5 close to the transmission seat 2 is fixedly connected to a gear 2 12, and the gear 2 12 is meshed with the gear 1 11.

[0043] Connect an external power source to start the motor 3 to rotate the shredding roller 14, so that the shredding roller 14 drives the gear 11 to rotate. Since the gear 11 is meshed with the gear 2 12, the shredding roller 14 and the shredding roller 2 5 can rotate in relative directions to shred the material for the second time.

[0044] See also Figure 5 One end of the shredding roller three 6 close to the transmission seat 2 is fixedly connected to the gear three 13, and the gear three 13 is meshed with the gear two 12. One end of the shredding roller four 7 close to the transmission seat 2 is fixedly connected to the gear four 14, and the gear four 14 is meshed with the gear one 11.

[0045] Since gear three 13 is meshed with gear two 12, and gear four 14 is meshed with gear one 11, gear one 11 and gear two 12 drive gear three 13 and gear four 14 to rotate when rotating, thereby driving shredding roller three 6 and shredding roller four 7 to rotate, so that shredding roller one 4, shredding roller two 5, shredding roller three 6 and shredding roller four 7 can be driven by the same end, thereby reducing the energy consumption of the four-axis shredder.

[0046] See also Figure 6 The side surfaces of the shredding roller 2 5 and the shredding roller 4 7 are evenly distributed with shredding knife groups 15, the side surfaces of the shredding roller 1 4 and the shredding roller 3 6 are evenly distributed with metal cone edge plates 16, the side surfaces of the metal cone edge plates 16 are fixedly connected with springs 2 17, and one end of the springs 2 17 away from the metal cone edge plates 16 is fixedly connected with a sharpening plate 18, and the sharpening plate 18 and the metal cone edge plates 16 are cross-distributed with the shredding knife groups 15.

[0047] By rotating the shredding rollers 14, 25, 36 and 47, the shredding knife group 15 and the metal cone edge plate 16 are rotated, and the shredding knife group 15 and the metal cone edge plate 16 are used to cut and shred the materials. Since the shredding knife group 15 and the metal cone edge plate 16 are relatively staggeredly distributed on the surfaces of the shredding rollers 25 and 36 and the shredding rollers 14 and 47, the materials can be cut and shredded horizontally and vertically, thereby improving the shredding efficiency. At the same time, during the shredding process, since the grinding plate 18 and the metal cone edge plate 16 are cross-distributed with the shredding knife group 15, the shredding knife group 15 squeezes the grinding plate 18 to contract the spring 2 17, so that the shredding knife group 15 rubs against the side surface of the grinding plate 18, so that the shredding knife group 15 always remains sharp, and at the same time, the debris and dust attached to the surface of the shredding knife group 15 can be scraped off, thereby improving the shredding effect of the four-axis shredder.

[0048] See also Figure 1 and Figure 4 A partition net 29 is fixedly connected to the inside of the dust extraction net cylinder seat 26, and the partition net 29 is located below the L-shaped duct 27. A dust collecting hopper 30 is fixedly connected to the lower surface of the dust extraction net cylinder seat 26, and the dust collecting hopper 30 is located above the shredding roller three 6 and the shredding roller four 7.

[0049] When extracting dust and debris, start the vacuum fan 28 to draw the dust and debris generated by shredding from the dust collecting hopper 30 into the interior of the dust extraction net cylinder seat 26, and use the partition net 29 to separate the L-shaped duct 27 from the dust guide pipe 31 to prevent dust and debris from floating into the interior of the L-shaped duct 27.

[0050] See also Figure 1 and Figure 4 A dust guide tube 31 is fixedly connected to the side surface of the dust extraction net cylinder seat 26 , and the dust guide tube 31 is located below the partition net 29 , and a threaded buckle ring 36 is sleeved on one end of the dust guide tube 31 away from the dust extraction net cylinder seat 26 .

[0051] Through the operation of the vacuum pump 28, the dust guide pipe 31 guides the extracted dust and debris into the interior of the dust collecting tank 33 for collection and centralized treatment.

[0052] See also Figure 1 and Figure 7 The right side of the chassis 1 is fixedly connected with a limiting arc ring 32, and the inner part of the limiting arc ring 32 is snap-connected with a dust collecting tank 33. The top of the dust collecting tank 33 is fixedly connected with a threaded connection seat 35, and the threaded connection seat 35 is threadedly connected with a threaded buckle ring 36. The side surface of the dust collecting tank 33 is fixedly connected with an exhaust fan 34.

[0053] The limiting arc ring 32 is an arc ring made of soft metal material. The limiting arc ring 32 is used to clamp the dust collecting tank 33 to facilitate the disassembly and assembly of the dust collecting tank 33. When dust and debris are sucked into the dust extraction net cylinder seat 26, the vacuum pump 34 is started to allow the dust guide pipe 31 to guide the dust and debris into the dust collecting tank 33 for collection. After the dust removal is completed, the threaded buckle ring 36 is twisted to move it upward and separate it from the threaded connection seat 35, and then the dust collecting tank 33 is pulled to separate it from the limiting arc ring 32, and the dust collecting tank 33 is disassembled to dispose of the collected dust and debris.

[0054] When in use, the material to be shredded is put into the interior of the chassis 1 from the feed chute 19 and placed on the surface of the guide plate 23. The external power supply is connected to start the vacuum pump 28 to extract the air inside the chassis 1 and the L-shaped duct 27. The air inside the L-shaped duct 27 is continuously extracted to form a negative pressure state at the connection between the inside and the pull rod 24. The movable plug 25 is moved toward the bent end of the L-shaped duct 27 by using the pressure difference, thereby driving the pull rod 24 to move toward the inside of the L-shaped duct 27, pulling the sealing plate 22 backwards to make it swing backwards to block the feed chute 19. At the same time, the swing of the sealing plate 22 drives the movable rod 20 to deflect backwards, causing the guide plate 23 to swing downward to drop the material to be shredded onto the surfaces of the shredding rollers 3 6 and 4 7. When shredding, the material falls onto the surface of the shredding roller three 6 and the shredding roller four 7, squeezing the shredding roller three 6 and the shredding roller four 7, so that the shredding roller three 6 and the shredding roller four 7 move to the two sides of the shredding roller one 4 and the shredding roller two 5 with the shredding roller one 4 and the shredding roller two 5 as the axis, so that the slider 9 squeezes the spring one 10 and moves to the bottom end of the slide 8, and the distance between the shredding roller three 6 and the shredding roller four 7 can be adjusted when the four rollers shred materials of different sizes, and the external power supply is connected to start the motor 3 to rotate the shredding roller one 4, so that the shredding roller one 4 drives the gear one 11 to rotate, and because the gear one 11 is meshed with the gear two 12, the shredding roller one 4 and the shredding roller two 5 can rotate in relative directions to shred the material for the second time, and because the gear three 13 is meshed with the gear The second wheel 12 is meshed, and the fourth gear 14 is meshed with the first gear 11, so that the first gear 11 and the second gear 12 drive the third gear 13 and the fourth gear 14 to rotate when they rotate, thereby driving the shredding roller three 6 and the shredding roller four 7 to rotate, so that the shredding roller one 4, the shredding roller two 5, the shredding roller three 6 and the shredding roller four 7 can be driven by the same end head, and the shredding knife group 15 and the metal cone edge plate 16 are rotated by the rotation of the shredding roller one 4, the shredding roller two 5, the shredding roller three 6 and the shredding roller four 7, and the shredding knife group 15 and the metal cone edge plate 16 are used to cut and shred the material. Since the shredding knife group 15 and the metal cone edge plate 16 are relatively staggered and distributed on the surfaces of the shredding roller two 5 and the shredding roller three 6 and the shredding roller one 4 and the shredding roller four 7, the material can be cut and shredded horizontally and vertically. At the same time, during the shredding process, since the sharpening plate 18 and the metal cone side plate 16 are cross-distributed with the shredding knife group 15, the shredding knife group 15 squeezes the sharpening plate 18 to shrink the spring 2 17, so that the shredding knife group 15 rubs against the side surface of the sharpening plate 18, so that the shredding knife group 15 always keeps a sharp state, and at the same time, the debris and dust attached to the surface of the shredding knife group 15 can be scraped off, and the vacuum pump 1 28 is started to draw the dust and debris generated by the shredding from the dust collecting hopper 30 into the interior of the dust extraction net cylinder seat 26. After the dust and debris are drawn into the interior of the dust extraction net cylinder seat 26, the vacuum pump 2 34 is started to make the dust guide pipe 31 guide the dust and debris into the interior of the dust collecting soft tank 33 for collection. After the dust removal is completed, the threaded buckle 36 is twisted to move it upward and separate from the threaded connection seat 35.Then pull the dust collecting tank 33 to separate it from the limiting arc ring 32, remove the dust collecting tank 33, and dispose of the collected dust and debris.

[0055] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A four-shaft shredder, comprising a chassis (1), characterized in that: The left side of the chassis (1) is fixedly connected to a transmission seat (2), the left side of the transmission seat (2) is fixedly connected to a motor (3), the output end of the motor (3) is fixedly connected to a shredding roller one (4), the interior of the transmission seat (2) is located in front of the shredding roller one (4) and is rotatably connected to a shredding roller two (5), the interior of the transmission seat (2) is located above the shredding roller one (4) and is rotatably connected to a shredding roller four (7), the interior of the transmission seat (2) is located in front of the shredding roller two (5) and is rotatably connected to a shredding roller three (6), and a feed trough (19) is provided on the front surface of the chassis (1); The feed trough (19) is internally rotatably connected to a movable rod (20), the side surface of the movable rod (20) is fixedly connected to a connecting block (21), the front surface of the connecting block (21) is fixedly connected to a sealing plate (22), the rear surface of the connecting block (21) is fixedly connected to a material guide plate (23), the rear surface of the sealing plate (22) is movably connected to a pull rod (24) via a bearing, and the end of the pull rod (24) away from the sealing plate (22) is fixedly connected to a movable plug (25); The upper surface of the chassis (1) is fixedly connected to a dust extraction net cylinder seat (26), an exhaust fan (28) is arranged inside the dust extraction net cylinder seat (26), and the side surface of the dust extraction net cylinder seat (26) is fixedly connected to an L-shaped duct (27), and one end of the L-shaped duct (27) away from the dust extraction net cylinder seat (26) is sleeved with a pull rod (24).

2. A four-shaft shredder according to claim 1, characterized in that: A slide groove (8) is provided inside the transmission seat (2), and a spring one (10) is fixedly connected inside the slide groove (8). A slider (9) is fixedly connected to one end of the spring one (10) away from the slide groove (8), and the right side surface of the slider (9) is rotationally connected to the shredding roller three (6) and the shredding roller four (7) respectively.

3. A four-shaft shredder according to claim 1, characterized in that: One end of the shredding roller 1 (4) close to the transmission seat (2) is fixedly connected to gear 1 (11), and one end of the shredding roller 2 (5) close to the transmission seat (2) is fixedly connected to gear 2 (12), and gear 2 (12) is meshed with gear 1 (11).

4. A four-shaft shredder according to claim 1, characterized in that: One end of the shredding roller three (6) close to the transmission seat (2) is fixedly connected to gear three (13), and gear three (13) is meshed with gear two (12); one end of the shredding roller four (7) close to the transmission seat (2) is fixedly connected to gear four (14), and gear four (14) is meshed with gear one (11).

5. A four-shaft shredder according to claim 1, characterized in that: The side surfaces of the shredding roller 2 (5) and the shredding roller 4 (7) are evenly distributed with shredding knife groups (15), the side surfaces of the shredding roller 1 (4) and the shredding roller 3 (6) are evenly distributed with metal cone edge plates (16), the side surfaces of the metal cone edge plates (16) are fixedly connected with spring 2 (17), the end of the spring 2 (17) away from the metal cone edge plate (16) is fixedly connected with a sharpening plate (18), and the sharpening plate (18) and the metal cone edge plate (16) are cross-distributed with the shredding knife groups (15).

6. A four-shaft shredder according to claim 1, characterized in that: The interior of the dust extraction net cylinder seat (26) is fixedly connected with a partition net (29), and the partition net (29) is located below the L-shaped duct (27); the lower surface of the dust extraction net cylinder seat (26) is fixedly connected with a dust collecting hopper (30), and the dust collecting hopper (30) is located above the shredding roller three (6) and the shredding roller four (7).

7. A four-shaft shredder according to claim 1, characterized in that: A dust guide tube (31) is fixedly connected to the side surface of the dust extraction net cylinder seat (26), and the dust guide tube (31) is located below the partition net (29). One end of the dust guide tube (31) away from the dust extraction net cylinder seat (26) is sleeved with a threaded buckle ring (36).

8. The four-shaft shredder according to claim 1, characterized in that: The right side surface of the chassis (1) is fixedly connected to a limit arc ring (32), the interior of the limit arc ring (32) is snap-connected with a dust collecting tank (33), the top of the dust collecting tank (33) is fixedly connected to a threaded connection seat (35), and the threaded connection seat (35) is threadedly connected to a threaded buckle ring (36), and the side surface of the dust collecting tank (33) is fixedly connected to a second exhaust fan (34).

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