Waste paper shredding device for loose-leaf paper production

Abstract

The present invention relates to the field of waste paper shredding technology, specifically a waste paper shredding device for loose-leaf paper production, comprising a shredding box and a first feed hopper and a second feed hopper disposed on the top of the shredding box, wherein the bottom end of the first feed hopper is connected to the interior of the shredding box, and the bottom end of the second feed hopper is connected to the interior of the first feed hopper. The present invention provides two feed hoppers on the top of the shredding box. When feeding waste paper in different states, the first feed hopper and the second feed hopper are selected to feed the waste paper into the shredding box, thereby improving the efficiency of shredding the waste paper. The structural design of the cleaning mechanism enables automatic cleaning of shredding material attached to the surface of the shredding tool in the shredding device, eliminating the need for manual cleaning of the surface of the shredding tool, thereby avoiding the danger of manual operation and improving the cleaning efficiency of the interior of the shredding device.

Description

Technical Field

[0001] The invention relates to the technical field of waste paper shredding, in particular to a waste paper shredding device used for loose-leaf paper production. Background Art

[0002] Loose-leaf paper is the paper used in loose-leaf notebooks. It's typically used for writing, often made from high-quality beige wood-based paper and white offset paper. The production process of loose-leaf paper generates waste paper. To reduce paper waste, this waste paper needs to be shredded and recycled.

[0003] The existing waste paper shredders are usually designed with a flat feed port, which is often only suitable for relatively flat papers to enter the shredder for shredding. For waste paper in a clumped shape, it is necessary to manually unfold the paper balls and flatten them before they can be conveniently fed into the shredder for shredding, which makes the shredding operation of waste paper more troublesome. In addition, after the waste paper is shredded in the existing shredder, the shredded paper is easily attached to the shredding blades, which makes it very troublesome to clean the inside of the shredder.

[0004] Therefore, we propose a waste paper shredding device for loose-leaf paper production. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides a waste paper shredding device for loose-leaf paper production, which is used to achieve rapid feeding and processing of waste paper in different states and can quickly clean the interior of the shredding device.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a waste paper shredding device for loose-leaf paper production, comprising a shredding box and a first feed hopper and a second feed hopper disposed on top of the shredding box, wherein the bottom end of the first feed hopper is connected to the interior of the shredding box, and the bottom end of the second feed hopper is connected to the interior of the first feed hopper, a feeding mechanism is disposed inside the first feed hopper, and a material guide assembly is disposed at the bottom of the second feed hopper;

[0007] A crushing mechanism is provided inside the crushing box, and the crushing mechanism includes a mounting frame, a crushing knife roller, a rotating rod and a crushing knife holder. A crushing chamber is provided inside the crushing box, mounting frames are provided on both sides of the upper part of the crushing chamber, and a plurality of crushing knife rollers are provided between the two mounting frames. A plurality of rotating rods are provided below the crushing chamber, and a plurality of crushing knife holders are provided on the surface of the rotating rods.

[0008] A movable frame is also slidably provided inside the crushing chamber, and a pressing frame is provided at the bottom of the movable frame. Two servo electric cylinders are provided inside the movable frame, and the driving ends of the two servo electric cylinders are fixedly connected to the inside of the pressing frame. A crushing pressing groove is provided at the bottom of the pressing frame to match the crushing tool holder.

[0009] A cleaning mechanism is also provided inside the crushing chamber and above the crushing knife roller. The cleaning mechanism includes a fixing frame and a connecting frame. A fixing frame is provided on the back of the inner wall of the crushing chamber, and connecting frames are provided on both sides of the front of the fixing frame. A cleaning frame is movably provided between the two connecting frames, and a material extraction port is slidably provided on the back of the cleaning frame. A material extraction trough is provided at the bottom of the cleaning frame, and the interior of the material extraction port is connected to the interior of the material extraction trough.

[0010] Preferably, an air guide frame is rotatably provided on one side of the extraction port, and the other side of the air guide frame is slidably provided inside the fixed frame. A dust suction pump is provided on the back of the crushing box, and the feed end of the dust suction pump is connected to one side of the air guide frame through a conduit.

[0011] Preferably, a first screw rod is rotatably provided inside the two connecting frames, and one end of the two first screw rods is threadedly connected to two sides of the inside of the cleaning frame.

[0012] Preferably, the feeding mechanism includes two feeding rollers, feeding rollers are rotatably provided on both sides of the inside of the first feed hopper, and movable blocks are provided at both ends of the two feeding rollers through rotating bearings, the four movable blocks are respectively located on the front and rear sides of the first feed hopper for sliding, and a second screw rod is rotatably provided inside the two movable blocks located on the rear side.

[0013] Preferably, the material guide assembly includes a material guide rack and a material guide conveyor belt. The bottom of the second feed hopper is provided with a material guide rack, and the interior of the material guide rack is provided with a material guide conveyor belt. Two movable baffles are rotatably provided on one side of the interior of the second feed hopper.

[0014] Preferably, a sampling rack is movably provided on the front of the crushing box, and one side of the sampling rack extends to the inside of the discharge chamber. A return mechanism is also provided on the right side inside the crushing box. The return mechanism includes an air pump, a material extraction rack and a material feeding rack. An air pump is provided on the right side inside the crushing box.

[0015] Preferably, a drawing rack is provided on the right side inside the discharge chamber, a feeding rack is provided on the right side inside the crushing chamber, the feed end of the air pump is connected to the interior of the drawing rack through a conduit, and the discharge end of the air pump is connected to the interior of the feeding rack through a conduit.

[0016] Preferably, a discharge hopper is provided below the left side of the crushing box, and a baffle is slidably provided inside the discharge hopper.

[0017] Preferably, a discharge cavity is provided at the lower part of the crushing box, a drop chute is provided at the bottom of the inner wall of the crushing cavity, a discharge rack is provided inside the discharge cavity, and an arc-shaped groove with a lower left and a higher right is provided at the top of the discharge rack.

[0018] Preferably, a detachable side panel is provided on the left side of the crushing chamber, and a maintenance door is also provided below the inside of the side panel.

[0019] The present invention provides a waste paper shredding device for loose-leaf paper production. Compared with the prior art, it has the following advantages:

[0020] By arranging two feed hoppers on the top of the shredding box, arranging two relatively rotating feed rollers inside the first feed hopper, arranging a guide conveyor belt inside the second feed hopper, and extending the bottom end of the second feed hopper to the inside of the first feed hopper, when feeding waste paper in different states, the first feed hopper and the second feed hopper are selected to feed the waste paper into the inside of the shredding box, thereby improving the shredding efficiency of the waste paper; in addition, when feeding waste paper of different thicknesses, the feeding distance between the two feed rollers can be adjusted by the second screw rod, so that the feeding mechanism can be suitable for waste paper of different thicknesses for rapid feeding processing, thereby significantly improving the shredding efficiency of the waste paper.

[0021] By arranging a cleaning mechanism above the inside of the pulverizing chamber, when cleaning the pulverized material attached to the surface of the pulverizing blade roller, firstly, suction is generated inside the extraction trough through the dust suction pump, the air guide frame and the extraction port, and then the cleaning frame is controlled to perform reciprocating motion back and forth above the pulverizing blade roller. Under the action of the suction of the extraction trough, the pulverized material attached to the surface of the pulverizing blade roller is sucked into the extraction trough, and a collecting box is provided at the discharge end of the dust suction pump. Finally, the pulverized material enters the collecting box for storage through the extraction port and the air guide frame. Through the structural design of the cleaning mechanism, the pulverized material attached to the surface of the pulverizing tool in the pulverizing device can be automatically cleaned without manual cleaning of the surface of the pulverizing tool, which not only avoids the danger of manual operation, but also improves the cleaning efficiency of the inside of the pulverizing device.

[0022] By arranging a sampling rack inside the pulverizing box and a return mechanism on one side of the pulverizing box, during the process of pulverizing the waste paper, the sampling rack is used to randomly sample the pulverized material on one side of the discharge chamber. Through multiple sampling of the pulverized material, the pulverization specifications of the waste paper are compared with the pulverization process standards. After the specifications of the pulverized materials from multiple samples do not meet the pulverization process standards, the air pump extracts the pulverized material inside the discharge chamber through the extraction rack, and then uses the feeding rack to send the extracted pulverized material back into the pulverizing chamber, and uses the pulverizing knife roller and the crushing knife rack to perform secondary pulverization on the pulverized material, so as to ensure that the specifications of the waste paper after pulverization meet the pulverization process standards, and significantly improve the pulverization effect of the waste paper. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of a waste paper shredding device for loose-leaf paper production according to an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the internal structure of a crushing box according to an embodiment of the present invention;

[0025] Figure 3 Schematic diagram of the first feed hopper and the second feed hopper structure according to an embodiment of the present invention;

[0026] Figure 4 Schematic diagram of the material guide rack and material guide conveyor belt structure according to an embodiment of the present invention;

[0027] Figure 5 Schematic diagram of the mounting frame and the crushing roller structure according to an embodiment of the present invention;

[0028] Figure 6 A schematic diagram of the cleaning mechanism structure according to an embodiment of the present invention;

[0029] Figure 7 A bottom view of the structure of the fixing frame, the connecting frame and the cleaning frame according to an embodiment of the present invention;

[0030] Figure 8 Schematic diagram of the crushing box and material return mechanism structure according to an embodiment of the present invention;

[0031] Figure 9 Schematic diagram of the structure of the discharge rack and the return mechanism according to an embodiment of the present invention;

[0032] Figure 10 It is a schematic diagram of the movable frame and the pressing frame structure according to an embodiment of the present invention.

[0033] In the figure, 10, crushing box; 20, first feed hopper; 30, second feed hopper; 40, discharge hopper; 50, material baffle; 60, feeding mechanism; 70, material guide assembly; 80, side panel; 90, maintenance door; 11, mounting frame; 12, crushing roller; 13, rotating rod; 14, crushing blade frame; 15, crushing chamber; 16, movable frame; 17, material pressing frame; 18, servo cylinder; 19, crushing pressure groove; 21 , fixed frame; 22, connecting frame; 23, cleaning frame; 24, extraction port; 25, extraction chute; 26, air guide frame; 27, dust suction pump; 28, first screw rod; 31, blanking chute; 32, discharge rack; 33, sampling rack; 34, air pump; 35, extraction rack; 36, feeding rack; 41, feeding roller; 42, movable block; 43, second screw rod; 51, guide rack; 52, guide conveyor belt; 53, movable baffle. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] Example 1

[0036] See also Figures 1 to 10 As shown, a waste paper shredding device for loose-leaf paper production includes a shredding box 10 and a first feed hopper 20 and a second feed hopper 30 arranged on the top of the shredding box 10. The bottom end of the first feed hopper 20 is connected to the interior of the shredding box 10, and the bottom end of the second feed hopper 30 is connected to the interior of the first feed hopper 20. A discharge hopper 40 is provided at the lower left side of the shredding box 10, and a baffle plate 50 is slidably provided inside the discharge hopper 40.

[0037] It should be noted that a control panel is provided on the front of the shredding box 10 , and all the electronically controlled components in the shredding device are parameter-controlled via the control panel to achieve automated shredding of waste paper.

[0038] A feeding mechanism 60 is provided inside the first feed hopper 20, and a material guide assembly 70 is provided at the bottom of the second feed hopper 30. The feeding mechanism 60 is used to transport the flat waste paper entering the first feed hopper 20, and the material guide assembly 70 is used to transport the clumped waste paper entering the second feed hopper 30, so that waste paper in different states can quickly enter the interior of the shredding device.

[0039] Furthermore, the feeding mechanism 60 includes two feeding rollers 41. Feeding rollers 41 are rotatably provided on both sides of the interior of the first feeding hopper 20, and movable blocks 42 are provided at both ends of the two feeding rollers 41 through rotating bearings. The four movable blocks 42 are respectively located at the front and rear sides of the first feeding hopper 20 and are slidably provided. A second screw rod 43 is rotatably provided inside the two movable blocks 42 located at the rear side, and one end of the second screw rod 43 is driven by a motor. One side of the two movable blocks 42 located at the front side drives the two feeding rollers 41 to rotate relative to each other through the output shaft of the motor.

[0040] It should be noted that when feeding flat waste paper into the shredding box 10, the second screw rod 43 is controlled to rotate clockwise according to the thickness of the waste paper. When the second screw rod 43 rotates clockwise, the two movable blocks 42 on the rear side are driven away from each other, thereby adjusting the feeding distance between the two feeding rollers 41, so that waste paper with thicker thickness can easily pass through the first feed hopper 20 and enter the shredding box 10 for shredding.

[0041] Furthermore, the material guide assembly 70 includes a material guide rack 51 and a material guide conveyor belt 52. The material guide rack 51 is provided at the bottom of the second feed hopper 30, and the material guide conveyor belt 52 is provided inside the material guide rack 51, wherein the material guide conveyor belt 52 is driven by the output shaft of the motor, and the top of the material guide conveyor belt 52 extends to the inside of the second feed hopper 30. Two movable baffles 53 are rotatably provided on one side of the inside of the second feed hopper 30. When the clumped waste paper is fed into the inside of the shredding box 10, the clumped waste paper is fed into the inside of the second feed hopper 30 through the two movable baffles 53, and is driven by the material guide conveyor belt 52 to smoothly feed the clumped waste paper into the inside of the first feed hopper 20, effectively solving the operational difficulty of the existing shredding device when feeding clumped waste paper.

[0042] The crushing box 10 is provided with a crushing mechanism inside, which includes a mounting frame 11, a crushing roller 12, a rotating rod 13 and a crushing knife frame 14. A crushing chamber 15 is provided inside the crushing box 10, and mounting frames 11 are provided on both sides of the upper part of the crushing chamber 15, and a plurality of crushing rollers 12 are provided between the two mounting frames 11, wherein the surfaces of two adjacent crushing rollers 12 are staggered with each other, and when the crushing rollers 12 rotate, they can crush the waste paper falling into the crushing chamber 15; a plurality of rotating rods 13 are provided below the crushing chamber 15, and a plurality of crushing knife frames 14 are provided on the surface of the rotating rods 13, wherein Each crushing tool holder 14 is provided with a crushing blade, and a reasonable distance is set between two adjacent crushing tool holders 14 and two adjacent rotating rods 13 to ensure that each crushing tool holder 14 will not interfere with each other during rotation; in addition, several crushing knife rollers 12 and one end of the rotating rod 13 are respectively provided with a gear set that meshes with each other, and one of the gears is driven by the output shaft of the motor. The motor is used to drive the crushing knife roller 12 and the rotating rod 13 to rotate inside the crushing chamber 15, thereby continuously crushing the waste paper, significantly improving the crushing efficiency of the waste paper, and at the same time improving the crushing effect of the waste paper.

[0043] The interior of the crushing chamber 15 is also provided with a movable frame 16 by sliding, and a pressing frame 17 is provided at the bottom of the movable frame 16, wherein both sides of the movable frame 16 are driven by sliding blocks provided on both sides of the inner wall of the crushing chamber 15, and two servo electric cylinders 18 are provided inside the movable frame 16, and the driving ends of the two servo electric cylinders 18 are fixedly connected to the interior of the pressing frame 17, and a crushing pressure groove 19 is provided at the bottom of the pressing frame 17 to match the crushing knife frame 14. A scraper is also provided inside the crushing chamber 15 and above the movable frame 16. After the waste paper is crushed by the two crushing knife rollers 12, the waste paper is crushed. After the initial crushing, the crushed materials fall onto the movable frame 16, and then the movable frame 16 is driven to slide outward by the sliding blocks on both sides of the movable frame 16, and the scraper plate above the movable frame 16 is used to scrape all the crushed materials above the movable frame 16 to the bottom of the crushing chamber 15, and then the movable frame 16 is controlled to reset, and the driving end of the servo electric cylinder 18 inside the movable frame 16 is used to drive the pressing frame 17 to move downward, pressing the crushed materials into the crushing pressure groove 19. At the same time, the two crushing tool holders 14 are both located inside the crushing pressure groove 19 to perform secondary crushing on the crushed materials, which significantly improves the crushing effect of waste paper.

[0044] A cleaning mechanism is further provided inside the pulverizing chamber 15 and above the pulverizing blade roller 12. The cleaning mechanism includes a fixed frame 21 and a connecting frame 22. The fixed frame 21 is provided on the back of the inner wall of the pulverizing chamber 15, and connecting frames 22 are provided on both sides of the front of the fixed frame 21. A cleaning frame 23 is movably provided between the two connecting frames 22, and a suction port 24 is slidably provided on the back of the cleaning frame 23. A suction trough 25 is provided at the bottom of the cleaning frame 23, and the interior of the suction port 24 is connected to the interior of the suction trough 25. An air guide frame 26 is also rotatably provided on one side of the suction port 24, and the other side of the air guide frame 26 is located in the interior of the fixed frame 21 and is slidably provided. A dust suction pump 27 is provided on the back of the pulverizing box 10, and the feeding end of the dust suction pump 27 is connected to one side of the air guide frame 26 through a conduit.

[0045] A first screw rod 28 is rotatably provided inside the two connecting frames 22, and one end of the two first screw rods 28 is driven by a motor provided inside the fixed frame 21. The two sides inside the cleaning frame 23 are respectively threadedly connected to the surfaces of the two first screw rods 28. When the two first screw rods 28 are driven to rotate clockwise, the cleaning frame 23 is located between the two connecting frames 22 and moves forward. When the two first screw rods 28 are driven to rotate counterclockwise, the cleaning frame 23 is located between the two connecting frames 22 and moves backward. By controlling the cleaning frame 23 to reciprocate back and forth above the crushing knife roller 12, the crushed material attached to the crushing knife roller 12 is effectively cleaned.

[0046] It should be noted that when cleaning the crushed material attached to the surface of the pulverizing blade roller 12, first, suction is generated inside the extraction trough 25 through the dust suction pump 27, the air guide frame 26 and the extraction port 24, and then the cleaning frame 23 is controlled to perform reciprocating motion back and forth above the pulverizing blade roller 12. Under the suction of the extraction trough 25, the crushed material attached to the surface of the pulverizing blade roller 12 is sucked into the extraction trough 25. A collection box is provided at the discharge end of the dust suction pump 27. Finally, the crushed material enters the collection box for storage through the extraction port 24 and the air guide frame 26. Through the structural design of the cleaning mechanism, the crushed material attached to the surface of the pulverizing tool in the pulverizing device can be automatically cleaned without manual cleaning of the surface of the pulverizing tool, which not only avoids the danger of manual operation, but also improves the cleaning efficiency of the inside of the pulverizing device.

[0047] Furthermore, a detachable side panel 80 is provided on the left side of the crushing chamber 15 , and a maintenance door 90 is provided below the inside of the side panel 80 . When the crushing tool holder 14 fails, maintenance operations can be quickly performed by opening the maintenance door 90 .

[0048] Furthermore, a discharge chamber is provided at the lower part of the crushing box 10, a feeding chute 31 is provided at the bottom of the inner wall of the crushing chamber 15, and the interior of the feeding chute 31 is connected to the discharge chamber and the interior of the crushing chamber 15 respectively. One side of the discharge hopper 40 extends to the interior of the discharge chamber, and a discharge rack 32 is provided inside the discharge chamber, and the top of the discharge rack 32 is provided with an arc-shaped groove with a lower left side and a higher right side;

[0049] It should be noted that after the waste paper is continuously shredded by the shredding knife roller 12 and the crushing knife frame 14, the shredded material falls from the inside of the shredding chamber 15 into the inside of the discharge chamber through the drop chute 31. When the shredded material is discharged and collected, the shredded material slides into the inside of the discharge hopper 40 under the action of gravity through the arc-shaped groove arranged at an angle on the top of the discharge frame 32. The baffle plate 50 in the discharge hopper 40 is pulled out, and the shredded material falls out from the inside of the discharge hopper 40, completing the centralized collection and processing of the shredded material.

[0050] Furthermore, a sampling rack 33 is movably provided on the front of the crushing box 10, and one side of the sampling rack 33 extends to the interior of the discharge chamber. A return mechanism is also provided on the right side of the interior of the crushing box 10, and the return mechanism includes an air pump 34, a material extraction rack 35 and a material feeding rack 36. The air pump 34 is provided on the right side of the interior of the crushing box 10, the material extraction rack 35 is provided on the right side of the interior of the discharge chamber, and the material feeding rack 36 is provided on the right side of the interior of the crushing chamber 15. The feeding end of the air pump 34 is communicated with the interior of the material extraction rack 35 through a conduit, and the discharging end of the air pump 34 is communicated with the interior of the material feeding rack 36 through a conduit.

[0051] It should be noted that, in the process of shredding waste paper, the sampling rack 33 is used to randomly sample the shredded material on one side of the discharge chamber. By sampling the shredded material multiple times, the shredding specifications of the waste paper are compared with the shredding process standards. After the specifications of the shredded materials from multiple samples do not meet the shredding process standards, the air pump 34 is turned on. The air pump 34 extracts the shredded material from the discharge chamber through the extraction rack 35, and then the extracted shredded material is sent back into the shredding chamber 15 by the feeding rack 36. The shredding material is shredded for the second time by the shredding knife roller 12 and the crushing knife rack 14, to ensure that the specifications of the waste paper after shredding meet the shredding process standards, thereby significantly improving the shredding effect of the waste paper.

[0052] Furthermore, the present invention also discloses a waste paper shredding device for loose-leaf paper production, and the working method is as follows:

[0053] First, the feeding position is selected according to the different states of the waste paper. When feeding the flat waste paper into the crushing box 10, the second screw rod 43 is controlled to rotate clockwise according to the thickness of the waste paper. When the second screw rod 43 rotates clockwise, the two movable blocks 42 on the rear side are driven to move away from each other, thereby adjusting the feeding distance between the two feeding rollers 41, so that thicker waste paper can easily pass through the first feeding hopper 20 and enter the crushing box 10 for crushing.

[0054] When the waste paper clumps are fed into the crushing box 10, the waste paper clumps are fed into the second feed hopper 30 through the two movable baffles 53. Driven by the guide conveyor belt 52, the waste paper clumps are smoothly fed into the first feed hopper 20 and then enter the crushing box 10 for crushing.

[0055] After the waste paper falls into the pulverizing chamber 15, the motor drives the pulverizing blade roller 12 and the rotating rod 13 to rotate in the pulverizing chamber 15, thereby continuously pulverizing the waste paper. After the waste paper is continuously pulverized by the pulverizing blade roller 12 and the crushing blade holder 14, the pulverized material passes through the drop chute 31 and falls from the pulverizing chamber 15 into the discharge chamber. When the pulverized material is discharged and collected, the pulverized material slides into the discharge hopper 40 under the action of gravity through the arc-shaped groove arranged at the top of the discharge rack 32. The baffle plate 50 in the discharge hopper 40 is pulled out, and the pulverized material falls out of the discharge hopper 40, thereby completing the centralized collection of the pulverized material.

[0056] During the shredding process of waste paper, a sampling rack 33 is used to randomly sample the shredded material on one side of the discharge chamber. By sampling the shredded material multiple times, the shredding specifications of the waste paper are compared with the shredding process standards. If the specifications of the shredded material from multiple samples do not meet the shredding process standards, the air pump 34 is turned on. The air pump 34 extracts the shredded material from the discharge chamber through the extraction rack 35. The extracted shredded material is then fed back into the shredding chamber 15 by the feeding rack 36. The shredding material is then subjected to a secondary shredding process by the shredding blade roller 12 and the crushing blade rack 14.

[0057] Finally, when cleaning the crushed material attached to the surface of the pulverizing blade roller 12, first, suction is generated inside the extraction trough 25 through the dust suction pump 27, the air guide frame 26 and the extraction port 24, and then the cleaning frame 23 is controlled to reciprocate back and forth above the pulverizing blade roller 12. Under the suction of the extraction trough 25, the crushed material attached to the surface of the pulverizing blade roller 12 is sucked into the extraction trough 25. A collection box is provided at the discharge end of the dust suction pump 27. Finally, the crushed material enters the collection box for storage through the extraction port 24 and the air guide frame 26.

[0058] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0059] It should be noted that, in this document, relational terms such as first and second, etc., are used only 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 terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0060] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A waste paper shredding device for loose-leaf paper production, comprising a shredding box (10) and a first feed hopper (20) and a second feed hopper (30) disposed on the top of the shredding box (10), characterized in that: The bottom end of the first feed hopper (20) is in communication with the interior of the crushing box (10), and the bottom end of the second feed hopper (30) is in communication with the interior of the first feed hopper (20); A feeding mechanism (60) is provided inside the first feeding hopper (20), and the feeding mechanism (60) is used to feed flat waste paper; A material guide assembly (70) is provided at the bottom of the second feed hopper (30), and the material guide assembly (70) is used for feeding the waste paper in a clumped state; The material guide assembly (70) includes a material guide frame (51) and a material guide conveyor belt (52); the material guide frame (51) is provided at the bottom of the second feed hopper (30), and the material guide conveyor belt (52) is provided inside the material guide frame (51); two movable baffles (53) are rotatably provided on one side inside the second feed hopper (30); A shredding mechanism is provided inside the shredding box (10), and the shredding mechanism is used to continuously shred the waste paper entering the shredding box (10); The crushing mechanism comprises a mounting frame (11), a crushing blade roller (12), a rotating rod (13) and a crushing blade holder (14); a crushing chamber (15) is provided inside the crushing box (10); mounting frames (11) are provided on both sides above the crushing chamber (15); and a plurality of crushing blade rollers (12) are provided between the two mounting frames (11); a plurality of rotating rods (13) are provided below the crushing chamber (15); and a plurality of crushing blade holders (14) are provided on the surface of the rotating rods (13); A movable frame (16) is also slidably provided inside the crushing chamber (15), and a pressing frame (17) is provided at the bottom of the movable frame (16). Two servo electric cylinders (18) are provided inside the movable frame (16), and the driving ends of the two servo electric cylinders (18) are fixedly connected to the inside of the pressing frame (17). A crushing pressing groove (19) that matches the crushing knife frame (14) is provided at the bottom of the pressing frame (17); A cleaning mechanism is also provided inside the pulverizing chamber (15) and above the pulverizing blade roller (12), and is used to automatically clean the waste paper pulverized material remaining in the pulverizing mechanism, thereby ensuring the pulverizing effect of the pulverizing mechanism on the waste paper; The cleaning mechanism comprises a fixed frame (21) and a connecting frame (22), the fixed frame (21) is provided on the back side of the inner wall of the crushing chamber (15), and connecting frames (22) are provided on both sides of the front side of the fixed frame (21), a cleaning frame (23) is movably provided between the two connecting frames (22), and a material extraction port (24) is slidably provided on the back side of the cleaning frame (23), a material extraction groove (25) is provided at the bottom of the cleaning frame (23), an air guide frame (26) is rotatably provided on one side of the material extraction port (24), and the other side of the air guide frame (26) is located inside the fixed frame (21) and is slidably provided, a dust suction pump (27) is provided on the back side of the crushing box (10), and the feeding end of the dust suction pump (27) is connected to one side of the air guide frame (26) through a conduit, a first screw rod (28) is rotatably provided inside the two connecting frames (22), and one end of the two first screw rods (28) is respectively threadedly connected to the two sides inside the cleaning frame (23).

2. The waste paper shredding device for loose-leaf paper production according to claim 1, characterized in that: The feeding mechanism (60) includes two feeding rollers (41), feeding rollers (41) are rotatably provided on both sides of the first feeding hopper (20), and movable blocks (42) are provided at both ends of the two feeding rollers (41) via rotating bearings, and the four movable blocks (42) are respectively located on the front and rear sides of the first feeding hopper (20) and are slidably provided, and a second screw rod (43) is rotatably provided inside the two movable blocks (42) located on the rear side.

3. The waste paper shredding device for loose-leaf paper production according to claim 1, characterized in that: A sampling rack (33) is movably provided on the front of the crushing box (10), and one side of the sampling rack (33) extends to the inside of the discharge chamber. A material return mechanism is also provided on the right side inside the crushing box (10), and the material return mechanism includes an air pump (34), a material extraction rack (35) and a material feeding rack (36). The air pump (34) is provided on the right side inside the crushing box (10).

4. The waste paper shredding device for loose-leaf paper production according to claim 3, characterized in that: A material extraction rack (35) is provided on the right side of the inside of the discharge chamber, and a material feeding rack (36) is provided on the right side of the inside of the crushing chamber (15). The feed end of the air pump (34) is communicated with the inside of the material extraction rack (35) through a conduit, and the discharge end of the air pump (34) is communicated with the inside of the material feeding rack (36) through a conduit.

5. The waste paper shredding device for loose-leaf paper production according to claim 1, characterized in that: A discharge hopper (40) is provided below the left side of the crushing box (10), and a material blocking plate (50) is slidably provided inside the discharge hopper (40).

6. The waste paper shredding device for loose-leaf paper production according to claim 1, characterized in that: A discharge cavity is provided at the lower portion of the crushing box (10), a material drop chute (31) is provided at the bottom of the inner wall of the crushing cavity (15), and a discharge rack (32) is further provided inside the discharge cavity.

7. The waste paper shredding device for loose-leaf paper production according to claim 1, characterized in that: A side plate (80) is provided on the left side of the pulverizing chamber (15), and a maintenance door (90) is also provided below the inside of the side plate (80).

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