Paper scrap crushing device suitable for paper product processing production lines

Abstract

This invention relates to the field of crushing equipment technology, and more particularly to a paper scrap crushing device adapted to paper product processing production lines. It includes a feeding hopper, and a push-in slitting unit and a conveying unit disposed within the feeding hopper. A crushing cylinder is fixedly connected to one side of the bottom of the feeding hopper, and the crushing cylinder contains a crushing unit that cooperates with the conveying unit. This invention first uses the push-in slitting unit to simultaneously perform vertical slitting while autonomously squeezing and conveying the paper scrap, achieving effective conveying and slitting. It also causes the triangular guide block to reciprocate, achieving continuous pushing and slitting, further increasing slitting efficiency. Finally, combined with the conveying unit and the crushing unit, it achieves multi-stage conveying and crushing processing, enabling thorough and efficient crushing of the paper scrap for subsequent recycling and utilization.

Description

Technical Field

[0001] This invention relates to the field of crushing equipment technology, and more particularly to a crushing equipment for paper scraps adapted to paper product processing production lines. Background Technology

[0002] Paper scraps generated during paper processing are often considered potential secondary resources. To minimize paper waste and maximize resource utilization efficiency, these scraps are typically fed into shredders for reuse. Shredders, through precise cutting and sorting mechanisms, can transform scraps into reusable raw materials. This process not only significantly reduces waste generation but also promotes resource recycling. Therefore, shredding equipment has been widely used and recognized in various industries, including paper processing, packaging, and printing, becoming an indispensable part of promoting green and sustainable development in these sectors.

[0003] For example, in the prior art, there is a paper product processing scrap crushing mechanism disclosed in CN118594720A. This crushing mechanism pushes the paper product scraps through the arc-shaped hook on the first output shaft and squeezes and cuts them in conjunction with the second output shaft. This can avoid the problem that paper products cannot enter the crusher smoothly due to their large size or mess. However, the elastic telescopic installation of the cutter head on the second conveyor shaft and the elastic rotation installation of the cutting frame that cooperates with the cutter head make it difficult to ensure the effective cutting of paper products located on the cutting frame side when performing preliminary cutting of excessively thick paper products, even though it can avoid the problem of material jamming. Therefore, it is difficult to further improve the efficiency and effect of secondary crushing.

[0004] To address the aforementioned technical shortcomings, a solution is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a paper scrap crushing device suitable for paper product processing production lines to solve the aforementioned technical defects. This invention first uses a push-in slitting unit to simultaneously perform vertical slitting on the paper scrap through autonomous compression conveying, thereby achieving effective conveying and slitting. It also causes the triangular guide block to reciprocate, achieving continuous pushing and slitting, further achieving high slitting efficiency. Finally, by combining the conveying unit and the crushing unit, it achieves multi-stage conveying and crushing, which can fully and efficiently crush the paper scrap, facilitating subsequent recycling and utilization.

[0006] The objective of this invention can be achieved through the following technical solutions:

[0007] A paper scrap crushing device adapted to a paper product processing production line includes a feeding bin, and a push-in slitting unit and a conveying unit set in the feeding bin. A crushing cylinder is fixedly connected to one side bottom of the feeding bin, and a crushing unit that cooperates with the conveying unit is set inside the crushing cylinder.

[0008] The push-in cutting unit includes two sets of mirror-distributed adjusting seats, and multiple rotating belts are equidistantly sleeved on the outer side of the adjusting seats. Multiple auxiliary clamping blocks are equidistantly installed on the rotating belts. Two sets of rotating rods are rotatably installed in the feeding hopper, and multiple vertical cutting blades are installed on the rotating rods. The conveying unit includes spiral blades and multiple transverse cutting blades installed on the inner side of the spiral blades. The crushing unit includes multiple sets of crushing blades and transverse cutting blades.

[0009] Preferably, a rotating rod is rotatably installed at each corner of the adjusting seat, and a transmission wheel that cooperates with the corresponding rotating belt is fixedly connected to the rotating rod. A feeding motor that drives the corresponding rotating rod to rotate is installed on the adjusting seat by bolts.

[0010] Preferably, a convex block is fixedly connected to the inclined surface of the auxiliary clamping block, and a trapezoidal mounting block that slides with the convex block is installed on the rotating belt by screws, and a spring is connected between one side of the convex block and the trapezoidal mounting block.

[0011] Preferably, a fixing plate is fixedly connected to the inner walls on both sides of the feeding hopper, and a triangular guide block is provided at the top of the fixing plate. The bottom of the triangular guide block is connected to a linkage plate through multiple sliding rods, and the sliding rods are slidably connected to the fixing plate.

[0012] Preferably, an adjusting block and a slider are fixedly connected to both sides of the adjusting seat, and a bidirectional lead screw threadedly connected to the adjusting block is rotatably installed on the outer wall of the feeding hopper, and a guide rod slidably connected to the slider is fixedly connected.

[0013] Preferably, a sleeve is rotatably mounted on the feed hopper, and a rotating disk connected to the spiral blades is fixedly mounted on the sleeve.

[0014] Preferably, a rotating shaft fixedly connected to a crushing blade is rotatably mounted on the crushing cylinder, and the rotating shaft is rotatably connected to a sleeve. A mounting bracket connected to a cross-cutting blade is fixedly connected to the rotating shaft. A bevel gear is fixedly connected to both the rotating shaft and the sleeve. A crushing motor that drives the rotating shaft to rotate is mounted on the crushing cylinder by bolts.

[0015] Preferably, the ends of the plurality of cross-cutting blades are fixedly connected to the same mounting ring, and the mounting ring is fixedly mounted with a plurality of shredder blades that cooperate with one of the sets of shredder blades.

[0016] Preferably, a transmission rod is rotatably mounted on the feed hopper, and one end of the transmission rod is fixedly connected to a bevel gear two that meshes with two sets of bevel gears, and a worm gear is fixedly mounted on the other end of the transmission rod. A worm wheel that meshes with the worm gear is fixedly connected to the rotating rod.

[0017] The beneficial effects of this invention are as follows:

[0018] (1) The present invention uses the rotating belts on two sets of adjusting seats to carry the auxiliary clamping blocks to rotate. It can not only perform extrusion conveying of paper scraps in the feed bin, but also achieve effective slitting by combining with the vertical cutter during the extrusion conveying process. Furthermore, the auxiliary clamping blocks can be obliquely slidably installed on the trapezoidal mounting block. When the paper scraps come into contact with the vertical cutter and generate conveying resistance, the auxiliary clamping blocks will move relatively horizontally, autonomously increasing the extrusion force on the paper scraps, ensuring effective conveying and slitting, and thus improving slitting efficiency.

[0019] Furthermore, by utilizing the auxiliary clamping block to follow the rotation of the rotating belt and the gravity of the scrap paper in the feed bin, the triangular guide block is driven to reciprocate up and down, assisting the scrap paper in the feed bin to be fed out and contact the auxiliary clamping block, thereby achieving continuous feeding and slitting processing and further ensuring slitting efficiency; in addition, by adjusting the distance between the two sets of adjusting seats, it is possible to effectively feed and slit scrap paper of different sizes and volumes, further expanding the applicability of the device;

[0020] (2) The present invention, through the combination of a rotating shaft and a transmission rod, can not only cause the rotating rod to rotate carrying the vertical cutting blade, but also cause the sleeve to rotate in the opposite direction, thereby achieving a linkage effect between the transmission structures; and cause the first horizontal cutting blade and the second horizontal cutting blade to cooperate to first achieve secondary horizontal cutting and refinement of the vertically cut paper scraps, and then achieve the conveying of the refined paper scrap fragments through the spiral blades, and finally combine the first pulverizing blade and the second pulverizing blade to achieve a third pulverizing process. Through this multi-stage pulverizing method, the paper scraps can be fully and efficiently pulverized to facilitate subsequent recycling and utilization. Attached Figure Description

[0021] The invention will now be further described with reference to the accompanying drawings;

[0022] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0023] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0024] Figure 3 This is a schematic diagram of the internal structure of the feed hopper of the present invention;

[0025] Figure 4 This is a schematic diagram of the push-in slitting unit of the present invention;

[0026] Figure 5 This is a schematic diagram of the rotating belt structure of the present invention;

[0027] Figure 6 This is a schematic diagram of the auxiliary clamping block of the present invention;

[0028] Figure 7 This is a schematic diagram of the conveying unit of the present invention;

[0029] Figure 8 This is a schematic diagram of the pulverizing unit of the present invention;

[0030] Figure 9 This is a schematic diagram showing the linkage between the conveying unit, the crushing unit, and the vertical cutter of the present invention;

[0031] Figure 10 This is a schematic diagram of the triangular guide block of the present invention.

[0032] Legend:

[0033] 1. Feed hopper; 11. Crushing cylinder; 12. Fixing plate; 13. Triangular guide block; 14. Slide rod; 15. Linkage plate; 16. Double-acting lead screw; 17. Transmission rod; 18. Bevel gear II; 19. Worm gear;

[0034] 2. Push-in slitting unit; 21. Adjusting seat; 22. Rotating belt; 23. Auxiliary clamping block; 24. Rotating rod; 25. Vertical cutter; 26. Convex block; 27. Trapezoidal mounting block; 28. Spring; 29. ​​Worm gear;

[0035] 3. Conveying unit; 31. Spiral blade; 32. Cross-cutting blade one; 33. Tube sleeve; 34. Rotating disc; 35. Crushing blade two;

[0036] 4. Crushing unit; 41. Crushing blade one; 42. Cross-cutting blade two; 43. Rotating shaft; 44. Bevel gear one. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0038] Example 1: Please refer to Figures 1-6 and Figure 10 As shown, the existing technology has difficulty in ensuring effective preliminary cutting of excessively thick paper products during transport, which affects the efficiency and effect of secondary crushing. The following solution can be used to address this problem:

[0039] This embodiment is adapted to a paper scrap crushing device for paper product processing production lines. It includes a feeding bin 1 with a top-opening structure. The feeding bin 1 is placed in the scrap conveying area of ​​the paper product processing production line so that the paper scraps are automatically fed into the feeding bin 1. The feeding bin 1 also includes a push-in slitting unit 2 and a conveying unit 3. The push-in slitting unit 2 performs extrusion conveying on the paper scraps in the feeding bin 1 and performs slitting simultaneously during the extrusion conveying process. The conveying unit 3 is used to convey the slitting paper scrap fragments.

[0040] The bottom side of the feeding hopper 1 is fixedly connected to the crushing cylinder 11, and the crushing cylinder 11 is equipped with a crushing unit 4 that cooperates with the conveying unit 3. Through the crushing unit 4 combined with the conveying unit 3, the vertically cut paper scraps are subjected to multi-stage crushing treatment, and the slitting components in the push-in slitting unit 2 are carried out.

[0041] The push-in slitting unit 2 includes two sets of mirror-distributed adjusting seats 21. The upper half of the opposite sides of the two sets of adjusting seats 21 are inclined surfaces to facilitate the entry of paper scraps in the feed bin 1 between them, thereby achieving the effect of conveying and unloading. Multiple rotating belts 22 are equidistantly sleeved on the outer side of the adjusting seats 21, and multiple auxiliary clamping blocks 23 are equidistantly installed on the rotating belts 22. An elastic rubber layer is provided on one side of the auxiliary clamping block 23 to increase the friction between the auxiliary clamping block 23 and the paper scraps, thereby driving the paper scraps to move.

[0042] Two sets of rotating rods 24 are rotatably installed inside the feed hopper 1, and multiple vertical cutters 25 are installed on the rotating rods 24. The vertical cutters 25 on the two sets of rotating rods 24 are staggered, and the multiple vertical cutters 25 are distributed between two adjacent rotating belts 22. The adjusting seat 21 has a cutter groove for accommodating the vertical cutters 25. When the rotating belt 22 rotates, the auxiliary clamping block 23 on the rotating belt 22 rotates accordingly.

[0043] The paper scraps are first moved between the two sets of adjusting seats 21 by the elastic rubber layer on the auxiliary clamping block 23. Then, the paper scraps are pushed downward by the rotating belts 22 on both sides. The paper scraps come into contact with the vertical cutter 25 during the compression and conveying process. The conveying unit 3 includes a spiral blade 31 and multiple transverse cutters 32 installed inside the spiral blade 31. The crushing unit 4 includes multiple sets of crushing blades 41 and transverse cutters 42. The paper scrap fragments entering the crushing cylinder 11 are crushed by the rotation of the crushing blades 41.

[0044] Each corner of the adjusting seat 21 is rotatably mounted with a rotating rod, and a transmission wheel that cooperates with the corresponding rotating belt 22 is fixedly connected to the rotating rod. Multiple anti-slip ridges are provided on the outer side wall of the transmission wheel, and anti-slip grooves that cooperate with the anti-slip ridges are provided on the rotating belt 22, thereby avoiding relative sliding between the transmission wheel and the rotating belt 22, thus reducing the problem of the paper scrap pushing effect.

[0045] The adjusting seat 21 is equipped with a feeding motor that drives the corresponding rotating rod to rotate. The feeding motors on the two sets of adjusting seats 21 drive the corresponding rotating rod to rotate in opposite directions. The rotating rod drives multiple rotating belts 22 to rotate through the transmission wheel, thereby achieving the effect of the rotating belts 22 causing the paper scraps to be squeezed and conveyed.

[0046] A convex block 26 is fixedly connected to the inclined surface of the auxiliary clamping block 23. A trapezoidal mounting block 27 that slides with the convex block 26 is installed on the rotating belt 22 by screws. The screws on the trapezoidal mounting block 27 are linearly distributed to avoid interference with the rotation of the rotating belt 22. An elastic rope is installed between the side of the trapezoidal mounting block 27 away from the screw and the rotating belt 22 to cooperate with the screw to achieve the fitting effect between the trapezoidal mounting block 27 and the rotating belt 22, and simultaneously avoid motion interference caused by the trapezoidal mounting block 27 moving to the position of the transmission wheel.

[0047] A spring 28 is connected between one side of the convex block 26 and the trapezoidal mounting block 27. The compression force of the spring 28 causes the auxiliary clamping block 23 to be initially positioned on the screw side of the trapezoidal mounting block 27. When the auxiliary clamping block 23 moves, it increases the distance between itself and the rotating belt 22. The auxiliary clamping block 23 then moves towards the elastic rope to maintain the fit between the trapezoidal mounting block 27 and the rotating belt 22.

[0048] When the paper scraps come into contact with the vertical cutter 25 and generate feeding resistance, the auxiliary clamping block 23 is obliquely slidably installed on the trapezoidal mounting block 27. When the paper scraps come into contact with the vertical cutter 25 and generate conveying resistance, the auxiliary clamping block 23 is moved relatively horizontally, and the corresponding spring 28 is compressed. This increases the squeezing force on the paper scraps, thereby improving the pushing effect of the paper scraps and ensuring effective conveying and cutting, thus improving the cutting efficiency.

[0049] Fixed plates 12 are fixed to the inner walls on both sides of the feeding hopper 1, and triangular guide blocks 13 are provided on the top of the fixed plates 12. The bottom of the triangular guide blocks 13 is connected to the linkage plates 15 through multiple sliding rods 14, and the sliding rods 14 are slidably connected to the fixed plates 12. As the auxiliary clamping block 23 rotates with the rotating belt 22, it contacts the corresponding linkage plate 15 and causes it to rise. The linkage plate 15, in conjunction with the sliding rods 14, pushes the triangular guide blocks 13 to rise. After the auxiliary clamping block 23 separates from the linkage plate 15, it falls due to the gravity of the paper scraps and the triangular guide blocks 13.

[0050] With the help of the reciprocating triangular guide block 13, the paper scraps in the feed bin 1 are fed into the auxiliary clamp block 23, thereby achieving the effect of continuous feeding and cutting, further ensuring cutting efficiency. In addition, the width of the linkage plate 15 is greater than the horizontal movement of the top rotating rod of the adjusting seat 21, so that the adjusting seat 21 can drive the triangular guide block 13 to move up and down when it is in different positions.

[0051] Adjusting blocks and sliders are fixedly connected to both sides of the adjusting seat 21. A bidirectional lead screw 16, which is threadedly connected to the adjusting block, is rotatably installed on the outer wall of the feed hopper 1. A torsion wheel is fixedly installed at one end of the bidirectional lead screw 16, and a guide rod that is slidably connected to the slider is fixedly connected. By rotating the torsion wheel, the bidirectional lead screw 16 is driven to rotate. The bidirectional lead screw 16, in conjunction with the adjusting block, adjusts the distance between the two sets of adjusting seats 21 to complete the feeding of paper scraps of different sizes.

[0052] Example 2: Please refer to Figure 3 and Figures 7-9 As shown, the problem that it can only perform preliminary strip cutting of paper scraps and is difficult to further improve the efficiency of subsequent shredding can be solved by the following solution:

[0053] In this embodiment, a sleeve 33 is rotatably installed on the feed hopper 1, and a rotating disk 34 connected to the spiral blade 31 is fixedly installed on the sleeve 33. The sleeve 33 and the rotating disk 34 are used for the installation of the spiral blade 31. The bottom of the feed hopper 1 has a semi-circular structure, which is used to cooperate with the rotating spiral blade 31 to achieve the conveying effect of paper scraps.

[0054] A rotating shaft 43 is rotatably mounted on the crushing cylinder 11 and fixedly connected to the crushing blade 41. The rotating shaft 43 is rotatably connected to the sleeve 33. A mounting bracket is fixedly connected to the rotating shaft 43 and connected to the cross-cutting blade 42. The cross-cutting blade 42 is installed inside the spiral blade 31. When the vertically cut paper scraps come into contact with the spiral blade 31 and extend into the spiral blade 31, the spiral blade 31 carries the cross-cutting blade 32 and the rotating rod 24 carries the cross-cutting blade 42 in opposite directions. The vertically cut paper scraps are first subjected to efficient cross-cutting and refining treatment, and then the paper scrap fragments are pushed into the crushing cylinder 11.

[0055] Both the rotating shaft 43 and the sleeve 33 are fixedly connected to bevel gear 44. The crushing cylinder 11 is bolted to a crushing motor that drives the rotating shaft 43 to rotate. The crushing motor drives the rotating shaft 43 to rotate, the rotating shaft 43 drives the crushing blade 41 to rotate, and the mounting bracket drives the cross-cutting blade 42 to rotate inside the spiral blade 31.

[0056] The ends of multiple cross-cutting blades 32 are fixedly connected to the same mounting ring. Multiple shredder blades 35 that cooperate with one set of shredder blades 41 are fixedly installed on the mounting ring. The shredder blades 35 cooperate with the shredder blades 41 on the side near the spiral blades 31. Through the counter-rotation of the shredder blades 41 and 35, combined with the pushing action of the spiral blades 31, the shredding effect on paper scraps is improved. The bottom of the shredding cylinder 11 is provided with a discharge port. After efficient shredding through the counter-rotation of the shredder blades 41 and 35, the material is discharged through the discharge port on the shredding cylinder 11.

[0057] A transmission rod 17 is rotatably mounted on the feed hopper 1, and one end of the transmission rod 17 is fixedly connected to a bevel gear 18 that meshes with two sets of bevel gears 44. When the crushing motor drives the rotating shaft 43 to rotate, the meshing of bevel gears 44 and bevel gear 18 causes the sleeve 33 to rotate synchronously in the opposite direction, causing the cross-cutting blade 32 and cross-cutting blade 42, as well as the crushing blade 41 and crushing blade 35 to rotate in the opposite direction, thereby achieving the effect of efficient cross-cutting and crushing.

[0058] A worm gear 19 is fixedly installed at the other end of the transmission rod 17. A worm wheel 29 that meshes with the worm gear 19 is fixedly connected to the rotating rod 24. With the help of the rotation of the bevel gear 18, the transmission rod 17 is driven to rotate. The transmission rod 17 drives the two sets of rotating rods 24 to rotate with the corresponding vertical cutting blades 25 through the meshing of the worm gear 19 and the worm wheel 29. This vertically cuts the paper scraps that are extruded and feeds them, thus achieving a linkage effect between the transmission structures.

[0059] Example 3: Please refer to Figures 1-10 As shown, the present invention also proposes a method for using a paper scrap shredding device adapted to a paper product processing production line, comprising the following steps:

[0060] Step 1: Place this device in the scrap conveying area of ​​the paper product processing production line. After the paper scraps enter the feeding hopper 1, the feeding motors on the two sets of adjusting seats 21 drive the corresponding rotating rods to rotate in opposite directions. The rotating rods drive multiple rotating belts 22 to rotate through the transmission wheel. The auxiliary clamps 23 on the rotating belts 22 follow the rotation. With the help of the elastic rubber layer on the auxiliary clamps 23, the paper scraps are contacted. First, the paper scraps are moved between the two sets of adjusting seats 21. Then, with the cooperation of the rotating belts 22 on both sides, the paper scraps are pushed downward in a squeezing manner, so that the paper scraps come into contact with the vertical cutter 25 during the squeezing and conveying process.

[0061] Step 2: When the paper scraps come into contact with the vertical cutter 25 and generate feeding resistance, the auxiliary clamping block 23 is obliquely slidably connected to the trapezoidal mounting block 27, causing the auxiliary clamping block 23 to move horizontally when it moves relatively upward and compress the corresponding spring 28, thereby simultaneously increasing the squeezing force on the paper scraps, thus improving the pushing effect of the paper scraps. By rotating the torsion wheel, the bidirectional lead screw 16 is driven to rotate. The bidirectional lead screw 16, in conjunction with the adjusting block, adjusts the distance between the two sets of adjusting seats 21 to complete the pushing of paper scraps of different sizes and volumes.

[0062] Step 3: As the auxiliary clamping block 23 rotates with the rotating belt 22, it contacts the corresponding linkage plate 15 and causes it to rise. The linkage plate 15, in conjunction with the slide rod 14, pushes the triangular guide block 13 to rise. After the auxiliary clamping block 23 separates from the linkage plate 15, it descends due to the gravity of the paper scraps and the triangular guide block 13. With the help of the reciprocating triangular guide block 13, the paper scraps in the feed bin 1 are fed out and contact the auxiliary clamping block 23 for continuous feeding and cutting.

[0063] Step 4: The crushing motor drives the rotating shaft 43 to rotate. With the meshing of bevel gear 1 44 and bevel gear 2 18, the sleeve 33 rotates synchronously in the opposite direction, and the transmission rod 17 rotates. The transmission rod 17, in conjunction with the meshing of worm gear 19 and worm wheel 29, drives the two sets of rotating rods 24 to rotate with the corresponding vertical cutting blades 25, and performs vertical cutting of the paper scraps from the extrusion feeding process.

[0064] Step 5: When the vertically slit paper scraps come into contact with the spiral blades 31 and extend into the interior of the spiral blades 31, the spiral blades 31 carry the first cross-cutting blade 32 and the rotating rod 24 carries the second cross-cutting blade 42 in opposite directions. The vertically slit paper scraps are first finely cross-cut, and then the paper scrap fragments are pushed into the crushing cylinder 11. Combined with the opposite rotation of the first crushing blade 41 and the second crushing blade 35, they are efficiently crushed and then discharged through the discharge port on the crushing cylinder 11.

[0065] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A paper scrap crushing device adapted for paper product processing production lines, comprising a feeding bin (1), and a push-in slitting unit (2) and a conveying unit (3) disposed within the feeding bin (1), characterized in that, The bottom side of the feed hopper (1) is fixedly connected to a crushing cylinder (11), and the crushing cylinder (11) is provided with a crushing unit (4) that cooperates with the conveying unit (3). The push-in cutting unit (2) includes two sets of mirror-distributed adjustment seats (21), and multiple rotating belts (22) are equidistantly sleeved on the outer side of the adjustment seats (21), and multiple auxiliary clamping blocks (23) are equidistantly installed on the rotating belts (22). Two sets of rotating rods (24) are rotatably installed in the feed bin (1), and multiple vertical cutting blades (25) are installed on the rotating rods (24). The conveying unit (3) includes a spiral blade (31) and multiple transverse cutting blades (32) installed on the inner side of the spiral blade (31). The crushing unit (4) includes multiple sets of crushing blades (41) and transverse cutting blades (42). A convex block (26) is fixedly connected to the inclined surface of the auxiliary clamping block (23). A trapezoidal mounting block (27) that slides with the convex block (26) is installed on the rotating belt (22) by screws. A spring (28) is connected between one side of the convex block (26) and the trapezoidal mounting block (27). An elastic rope is installed between the side of the trapezoidal mounting block (27) away from the screw and the rotating belt (22). Fixed plates (12) are fixedly connected to the inner walls on both sides of the feeding bin (1), and a triangular guide block (13) is provided on the top of the fixed plate (12). The bottom of the triangular guide block (13) is connected to a linkage plate (15) through multiple slide rods (14), and the slide rods (14) are slidably connected to the fixed plate (12). During the rotation of the auxiliary clamping block (23) following the rotating belt (22), it contacts the corresponding linkage plate (15) and causes it to rise. The linkage plate (15) combined with the slide rods (14) pushes the triangular guide block (13) to rise.

2. The paper scrap crushing device adapted for paper product processing production lines according to claim 1, characterized in that, Each corner of the adjusting seat (21) is rotatably mounted with a rotating rod, and a transmission wheel that cooperates with the corresponding rotating belt (22) is fixedly connected to the rotating rod. A feeding motor that drives the corresponding rotating rod to rotate is installed on the adjusting seat (21) by bolts.

3. The paper scrap crushing device adapted for paper product processing production lines according to claim 1, characterized in that, An adjusting block and a slider are fixedly connected to both sides of the adjusting seat (21). A two-way screw (16) that is threadedly connected to the adjusting block is rotatably installed on the outer wall of the feeding bin (1), and a guide rod that is slidably connected to the slider is fixedly connected.

4. The paper scrap crushing device adapted for paper product processing production lines according to claim 1, characterized in that, The feed hopper (1) is rotatably mounted with a sleeve (33), and a rotating disk (34) connected to the spiral blade (31) is fixedly mounted on the sleeve (33).

5. The paper scrap crushing device adapted for paper product processing production lines according to claim 4, characterized in that, The crushing cylinder (11) is rotatably mounted with a rotating shaft (43) fixedly connected to the crushing blade (41), and the rotating shaft (43) is rotatably connected to the sleeve (33). The rotating shaft (43) is fixedly connected to a mounting bracket connected to the cross-cutting blade (42). The rotating shaft (43) and the sleeve (33) are both fixedly connected with a bevel gear (44). The crushing cylinder (11) is mounted with a crushing motor that drives the rotating shaft (43) to rotate by bolts.

6. The paper scrap crushing device adapted for paper product processing production lines according to claim 5, characterized in that, The ends of the plurality of cross-cutting blades (32) are fixedly connected to the same mounting ring, and the mounting ring is fixedly mounted with a plurality of shredder blades (35) that cooperate with one of the shredder blades (41).

7. The paper scrap crushing device adapted to a paper product processing production line according to claim 5, characterized in that, A transmission rod (17) is rotatably mounted on the feed hopper (1), and one end of the transmission rod (17) is fixedly connected to a bevel gear (18) that meshes with two sets of bevel gears (44). A worm gear (19) is fixedly mounted on the other end of the transmission rod (17), and a worm wheel (29) that meshes with the worm gear (19) is fixedly connected on the rotating rod (24).

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