Paper leftover material crushing device adaptive to paper product processing production line

Abstract

The invention relates to the technical field of crushing devices, in particular to a paper leftover material crushing device adaptive to a paper product processing production line, which comprises a feeding bin, and a push-in type slitting unit and a conveying unit which are arranged in the feeding bin, and the bottom of one side of the feeding bin is fixedly communicated with a crushing cylinder; a crushing unit matched with the conveying unit is arranged in the crushing barrel; according to the paper leftover material conveying and slitting device, through the push-in type slitting unit, paper leftover materials are conveyed in an automatic extrusion mode, and meanwhile vertical slitting treatment is synchronously conducted, so that effective conveying and slitting treatment is achieved; the triangular material guide block is promoted to move in a reciprocating mode, continuous material pushing and slitting treatment is achieved, and the efficient slitting efficiency is further achieved; and then the conveying unit and the crushing unit are combined, so that multi-stage staged conveying type crushing treatment is realized, and sufficient and efficient crushing treatment can be performed on the paper leftover materials, so that subsequent recovery and utilization are facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of pulverizing devices, and in particular to a paper scrap pulverizing device suitable for a paper product processing production line. Background Art

[0002] The scraps generated during the paper processing process are often regarded as potential secondary resources. In order to minimize paper waste and improve resource utilization efficiency, these scraps are usually sent to shredders for reuse. The shredder can convert scraps into reusable raw materials through precise cutting and sorting mechanisms. This process not only significantly reduces the generation of waste, but also promotes the recycling of resources. Therefore, shredding mechanisms have been widely used and recognized in many industries such as paper processing, packaging and printing, and have become an indispensable part of promoting the green and sustainable development of the industry.

[0003] For example, in the prior art, there is a paper product processing scrap pulverizing mechanism with publication number CN118594720A. The pulverizing mechanism pushes the paper product scraps through the arc-shaped hook frame on the first output shaft, and extrude and cuts them in combination with the second output shaft, which can avoid the problem that paper products cannot smoothly enter the pulverizer for pulverization due to their large size or disorder. However, the elastic telescopic installation of the cutter head on the second conveying shaft and the elastic rotation installation of the cutting frame matched with the cutter head can avoid the problem of material jamming when performing preliminary slitting of over-thick paper products, but it is difficult to ensure the effective slitting processing of paper products on one side of the cutting frame, and thus it is impossible to further improve the efficiency and effect of the secondary pulverizing process.

[0004] In view of the above technical defects, a solution is now proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a paper scrap crushing device suitable for a paper product processing production line to solve the above-mentioned technical defects. The present invention first uses a push-in slitting unit to autonomously extrusion-convey the paper scraps while simultaneously performing vertical slitting processing to achieve effective conveying and slitting processing; and promotes the reciprocating motion of the triangular material guide block to achieve continuous pushing and slitting processing, and further achieve high slitting efficiency; then combines the conveying unit and the shredding unit to realize multi-stage conveying shredding processing, which can fully and efficiently shred the paper scraps to facilitate subsequent recycling and utilization.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A paper scrap pulverizing device adapted for a paper product processing production line comprises a feed bin, and a push-in slitting unit and a conveying unit arranged in the feed bin, wherein a pulverizing cylinder is fixedly connected to the bottom of one side of the feed bin, and a pulverizing unit cooperating with the conveying unit is arranged inside the pulverizing cylinder;

[0008] The push-in slitting unit includes two groups of adjustment seats distributed in a mirror image, and a plurality of rotating belts are equidistantly sleeved on the outer side of the adjustment seat, and a plurality of auxiliary clamping blocks are equidistantly installed on the rotating belts. Two groups of rotating rods are rotatably installed in the feed bin, and a plurality of vertical cutting knives are installed on the rotating rods. The conveying unit includes a spiral blade and a plurality of cross-cutting knives 1 installed on the inner side of the spiral blade. The crushing unit includes a plurality of crushing knives 1 and cross-cutting knives 2.

[0009] Preferably, a rotating rod is rotatably installed at each corner of the adjustment seat, and a transmission wheel matched with the corresponding rotating belt is fixedly connected to the rotating rod, and a feeding motor for driving the corresponding rotating rod to rotate is installed on the adjustment seat through bolts.

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

[0011] Preferably, fixed plates are fixedly connected to the inner walls on both sides of the feed bin, and a triangular material guide block is arranged on the top of the fixed plate, and the bottom of the triangular material guide block is connected to a linkage plate through a plurality of sliding rods, and the sliding rods are slidably connected to the fixed plate.

[0012] Preferably, an adjustment block and a slider are fixedly connected to both sides of the adjustment seat respectively, and a bidirectional screw rod threadedly connected to the adjustment block is rotatably mounted on the outer side wall of the feed bin, as well as a guide rod slidably connected to the slider.

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

[0014] Preferably, a rotating shaft fixedly connected to a crushing knife 1 is rotatably mounted on the crushing cylinder, and the rotating shaft is rotatably connected to a pipe sleeve, a mounting frame connected to a second cross-cutting knife is fixedly connected to the rotating shaft, a bevel gear 1 is fixedly connected to the rotating shaft and the pipe sleeve, and a crushing motor for driving the rotating shaft to rotate is mounted on the crushing cylinder via bolts.

[0015] Preferably, the ends of the plurality of cross-cutting knives 1 are fixedly connected to the same mounting ring, and the mounting ring is fixedly mounted with a plurality of crushing knives 2 that match one group of crushing knives 1.

[0016] Preferably, a transmission rod is rotatably mounted on the feed bin, and one end of the transmission rod is fixedly connected to bevel gear 2 meshing with two sets of bevel gears 1, and a worm is fixedly mounted on the other end of the transmission rod, and a worm wheel meshing with the worm is fixedly connected to the rotating rod.

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

[0018] (1) The present invention uses the rotating belts on the two sets of adjustment seats to carry the auxiliary clamping blocks to rotate, which can not only perform extrusion-type conveying processing on the paper scraps in the feed bin, and realize effective slitting processing in combination with the vertical cutter during the extrusion and conveying process, but also utilize the oblique sliding installation of the auxiliary clamping blocks on the trapezoidal mounting blocks, so that when the paper scraps contact the vertical cutter to generate conveying resistance, the auxiliary clamping blocks are prompted to move relatively horizontally, and the extrusion force on the paper scraps is autonomously increased, thereby ensuring effective conveying and slitting processing, thereby improving the slitting efficiency;

[0019] The auxiliary clamping block follows the rotation of the rotating belt and the gravity of the scraps in the feed bin to promote the reciprocating lifting and lowering movement of the triangular guide block, assisting the paper scraps in the feed bin to be discharged to contact the auxiliary clamping block, thereby achieving the effect of continuous pushing and slitting processing, further ensuring the slitting efficiency; in addition, by adjusting the spacing between the two sets of adjustment seats, paper scraps of different sizes can be effectively pushed and slid, further improving the application range of the device;

[0020] (2) The present invention combines the rotating shaft with the transmission rod, which can not only cause the rotating rod to carry the vertical cutter to rotate, but also cause the pipe sleeve to rotate in the opposite direction, thereby realizing the linkage effect between the transmission structures; and causes the cross-cutting knife 1 to cooperate with the cross-cutting knife 2, firstly realizing the secondary cross-cutting and refining processing of the vertically cut paper scraps, and then realizing the transportation of the refined paper scraps fragments through the spiral blades, and finally combining the crushing knife 1 and the crushing knife 2 to achieve the third crushing processing. Through this multi-stage crushing method, the paper scraps can be fully and efficiently crushed to facilitate the subsequent recycling and utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the accompanying drawings;

[0022] Figure 1 The structure of the present invention is schematically shown in FIG. Figure 1 ;

[0023] Figure 2 The structure of the present invention is schematically shown in FIG. Figure 2 ;

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

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

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

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

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

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

[0030] Fig. 9 It is a schematic diagram of the linkage of the conveying unit, the crushing unit and the vertical cutter of the present invention;

[0031] Fig.10 It is a structural schematic diagram of the triangular material guide block of the present invention.

[0032] Legend:

[0033] 1. Feed bin; 11. Crushing cylinder; 12. Fixed plate; 13. Triangular guide block; 14. Sliding rod; 15. Linkage plate; 16. Bidirectional screw; 17. Transmission rod; 18. Bevel gear 2; 19. Worm;

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

[0035] 3. Conveying unit; 31. Spiral blade; 32. Cross-cutting knife 1; 33. Pipe sleeve; 34. Rotating disc; 35. Crushing knife 2;

[0036] 4. Crushing unit; 41. Crushing knife 1; 42. Cross-cutting knife 2; 43. Rotating shaft; 44. Bevel gear 1. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0038] Example 1: Please refer to Figure 1-Figure 6 and Fig.10 As shown, in the prior art, it is difficult to ensure effective preliminary slitting of overly thick paper products during transportation, thereby affecting the efficiency and effect of secondary shredding. This problem can be solved by the following solution:

[0039] The paper scrap shredding device adapted for the paper product processing production line in this embodiment comprises a feed bin 1, which is a top-opening structure, and is placed in the scrap conveying area of ​​the paper product processing production line so that the conveyed paper scraps automatically enter the feed bin 1, and a push-in slitting unit 2 and a conveying unit 3 arranged in the feed bin 1, wherein the push-in slitting unit 2 performs an extrusion conveying process on the paper scraps in the feed bin 1, and performs a slitting process synchronously during the extrusion conveying process, and the conveying unit 3 is used to convey the paper scrap fragments after slitting;

[0040] A crushing cylinder 11 is fixedly connected to the bottom of one side of the feed bin 1, and a crushing unit 4 cooperating with the conveying unit 3 is arranged inside the crushing cylinder 11. The crushing unit 4 is combined with the conveying unit 3 to perform multi-stage crushing on the vertically cut paper scraps, and the slitting components in the push-in slitting unit 2 are carried out;

[0041] The push-in slitting unit 2 includes two groups of adjustment seats 21 distributed in a mirror image, and the upper halves of the opposite sides of the two groups of adjustment seats 21 are inclined surfaces, so that the paper scraps in the feed bin 1 can enter between the two, thereby achieving the effect of conveying and unloading, and a plurality of rotating belts 22 are equidistantly sleeved on the outer side of the adjustment seat 21, and a plurality of auxiliary clamping blocks 23 are equidistantly installed on the rotating belt 22, and 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 groups of rotating rods 24 are rotatably installed in the feed bin 1, and a plurality of vertical cutters 25 are installed on the rotating rods 24. The vertical cutters 25 on the two groups of rotating rods 24 are staggered, and the plurality of vertical cutters 25 are distributed between two adjacent rotating belts 22. A knife groove for accommodating the vertical cutters 25 is provided on the adjusting seat 21. When the rotating belt 22 rotates, the auxiliary clamping block 23 on the rotating belt 22 rotates accordingly.

[0043] By means of the elastic rubber layer on the auxiliary clamping block 23, the paper scraps are first driven to move between the two groups of adjustment seats 21, and then the rotating belts 22 on both sides cooperate to push the paper scraps downward in an extruded manner, so that the paper scraps come into contact with the vertical cutting knife 25 during the extrusion and transportation process. The conveying unit 3 includes a spiral blade 31 and a plurality of cross-cutting knives 1 32 installed on the inner side of the spiral blade 31. The crushing unit 4 includes a plurality of groups of crushing knives 1 41 and cross-cutting knives 2 42. The crushing knife 1 41 rotates to crush the paper scrap fragments entering the crushing cylinder 11.

[0044] A rotating rod is rotatably installed at each corner of the adjustment seat 21, and a transmission wheel matched with the corresponding rotating belt 22 is fixedly connected to the rotating rod. A plurality of anti-skid edges are arranged on the outer wall of the transmission wheel, and an anti-skid groove matched with the anti-skid edge is opened on the rotating belt 22, thereby avoiding relative sliding between the transmission wheel and the rotating belt 22, thereby reducing the problem of pushing effect on paper scraps;

[0045] A feeding motor that drives the corresponding rotating rod to rotate is installed on the adjustment seat 21 through bolts. The feeding motors on the two groups of adjustment seats 21 drive the corresponding rotating rods to rotate in opposite directions. The rotating rods drive multiple rotating belts 22 to rotate through transmission wheels, thereby achieving the effect of the rotating belts 22 for extruding and conveying paper scraps.

[0046] A convex block 26 is fixedly connected to the oblique surface of the auxiliary clamping block 23, and a trapezoidal mounting block 27 that slides with the convex block 26 is mounted 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 screws and the rotating belt 22 to cooperate with the screws to achieve a 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 transmission wheel position;

[0047] A spring 28 is connected between one side of the convex block 26 and the trapezoidal mounting block 27. The initial position of the auxiliary clamping block 23 is located on the screw side of the trapezoidal mounting block 27 by the compression force of the spring 28. When the auxiliary clamping block 23 moves to increase the distance between it and the rotating belt 22, the auxiliary clamping block 23 moves toward 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 clamp block 23 is installed by oblique sliding on the trapezoidal mounting block 27, so that when the paper scraps come into contact with the vertical cutter 25 and generate conveying resistance, the auxiliary clamp block 23 is prompted to move relatively horizontally, and the corresponding spring 28 is prompted to be compressed, thereby simultaneously increasing the squeezing force on the paper scraps, thereby autonomously improving the pushing effect of the paper scraps, ensuring effective conveying and slitting processing, and thereby improving the slitting efficiency.

[0049] Fixed plates 12 are fixedly connected to the inner walls of both sides of the feed bin 1, and a triangular guide block 13 is arranged on the top of the fixed plate 12. The bottom of the triangular guide block 13 is connected to a linkage plate 15 through a plurality of slide bars 14, and the slide bars 14 are slidably connected to the fixed plate 12. The auxiliary clamping block 23 follows the rotation of the rotating belt 22, and contacts with the corresponding linkage plate 15 to make it move upward. The linkage plate 15 combines with the slide bar 14 to push the triangular guide block 13 to move upward. After the auxiliary clamping block 23 is separated from the linkage plate 15, it descends due to the gravity of the paper scraps and the triangular guide block 13.

[0050] With the help of the reciprocating triangular guide block 13, the paper scraps in the auxiliary feed bin 1 are assisted to contact the auxiliary clamping block 23, thereby realizing the effect of continuous pushing and slitting processing, further ensuring the slitting efficiency, and the width of the linkage plate 15 is greater than the horizontal movement size of the rotating rod at the top of the adjustment seat 21, thereby realizing that when the adjustment seat 21 is in different positions, it can drive the triangular guide block 13 to move up and down.

[0051] An adjusting block and a sliding block are fixedly connected to the two sides of the adjusting seat 21 respectively. A bidirectional screw rod 16 threadedly connected to the adjusting block is rotatably installed on the outer wall of the feed bin 1. A torsion wheel is fixedly installed at one end of the bidirectional screw rod 16, and a guide rod slidably connected to the sliding block is fixedly connected. The bidirectional screw rod 16 is driven to rotate by rotating the torsion wheel. The bidirectional screw rod 16 is combined with the adjusting block to adjust the distance between the two groups of adjusting seats 21 to complete the pushing of paper scraps of different sizes.

[0052] Example 2: Please refer to Figure 3 and Figure 7-Figure 9 As shown in the figure, the problem that the paper scraps can only be initially cut into strips and it is difficult to further improve the subsequent crushing efficiency can be solved by the following solutions:

[0053] In this embodiment, a pipe sleeve 33 is rotatably installed on the feed bin 1, and a rotating disk 34 connected to the spiral blade 31 is fixedly installed on the pipe sleeve 33. The provided pipe sleeve 33 and rotating disk 34 are used for installing the spiral blade 31, and the bottom of the feed bin 1 is a semicircular 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 fixedly connected to the pulverizing blade 1 41 is rotatably mounted on the pulverizing cylinder 11, and the rotating shaft 43 is rotatably connected to the pipe sleeve 33. A mounting frame connected to the cross-cutting blade 2 42 is fixedly connected to the rotating shaft 43. The cross-cutting blade 2 42 is mounted inside the spiral blade 31. When the vertically cut paper scraps contact the spiral blade 31 and extend into the inside of the spiral blade 31, the spiral blade 31 carrying the cross-cutting blade 1 32 and the rotating rod 24 carrying the cross-cutting blade 2 42 rotate in opposite directions, and the vertically cut paper scraps are firstly subjected to efficient cross-cutting and thinning treatment, and then the paper scraps are pushed into the pulverizing cylinder 11.

[0055] A bevel gear 1 44 is fixedly connected to the rotating shaft 43 and the pipe sleeve 33. A crushing motor for driving the rotating shaft 43 to rotate is installed on the crushing cylinder 11 through bolts. The crushing motor drives the rotating shaft 43 to rotate, and the rotating shaft 43 drives the crushing knife 1 41 to rotate, and the cross-cutting knife 2 42 is driven to rotate inside the spiral blade 31 in combination with the mounting frame.

[0056] The ends of the plurality of cross-cutting knives 32 are fixedly connected to the same mounting ring, on which the plurality of crushing knives 35 matched with one group of crushing knives 41 are fixedly mounted, the crushing knives 35 match with the crushing knives 41 on one side close to the spiral blade 31, and through the reverse rotation of the crushing knives 41 and the crushing knives 35, combined with the pushing process of the spiral blade 31, the crushing effect of the paper scraps is improved, and a discharge port is provided at the bottom of the crushing cylinder 11, and after the efficient crushing process is carried out through the reverse rotation of the crushing knives 41 and the crushing knives 35, the paper scraps are discharged through the discharge port on the crushing cylinder 11.

[0057] A transmission rod 17 is rotatably mounted on the feed bin 1, and one end of the transmission rod 17 is fixedly connected to a bevel gear 18 meshing with two sets of bevel gears 1 44. When the crushing motor drives the rotating shaft 43 to rotate, the meshing of the bevel gear 1 44 and the bevel gear 18 causes the pipe sleeve 33 to rotate in the opposite direction synchronously, causing the cross-cutting knife 1 32 and the cross-cutting knife 2 42, as well as the crushing knife 1 41 and the crushing knife 2 35 to rotate in the opposite direction, thereby achieving the effect of efficient cross-cutting and crushing processing;

[0058] A worm 19 is fixedly mounted on the other end of the transmission rod 17, and a worm wheel 29 meshing with the worm 19 is fixedly connected to the rotating rod 24. The rotation of the bevel gear 18 drives the transmission rod 17 to rotate. The transmission rod 17 drives the two sets of rotating rods 24 carrying the corresponding vertical cutting knives 25 to rotate through the meshing of the worm 19 and the worm wheel 29, so as to vertically cut the paper scraps cut by extrusion, thereby realizing the linkage effect between the transmission structures.

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

[0060] Step 1: Place the device in the scrap conveying area of ​​the paper product processing production line. After the paper scraps enter the feed bin 1, the feeding motors on the two groups of adjustment seats 21 drive the corresponding rotating rods to rotate in the opposite direction. The rotating rods drive multiple rotating belts 22 to rotate through the transmission wheels. The auxiliary clamping blocks 23 on the rotating belts 22 follow the rotation and contact the paper scraps with the help of the elastic rubber layer on the auxiliary clamping blocks 23. The paper scraps are first driven to move between the two groups of adjustment seats 21, and then the rotating belts 22 on both sides cooperate to push the paper scraps downward in an extruded manner, so that the paper scraps contact the vertical cutting knife 25 during the extrusion and conveying process.

[0061] Step 2: When the paper scraps contact the vertical cutter 25 and generate material feeding resistance, the auxiliary clamping block 23 is connected to the trapezoidal mounting block 27 by means of the oblique sliding connection, so that the auxiliary clamping block 23 moves horizontally when it moves upward relatively, and compresses the corresponding spring 28, thereby increasing the squeezing force on the paper scraps synchronously, thereby autonomously improving the pushing effect of the paper scraps, and the bidirectional screw rod 16 is driven to rotate by rotating the torsion wheel, and the bidirectional screw rod 16 is combined with the adjustment block to adjust the distance between the two groups of adjustment seats 21 to complete the pushing of paper scraps of different sizes;

[0062] Step 3: The auxiliary clamping block 23 follows the rotation of the rotating belt 22, contacts the corresponding linkage plate 15 and causes it to move upward. The linkage plate 15 combines with the slide bar 14 to push the triangular guide block 13 to move upward. After the auxiliary clamping block 23 is separated from the linkage plate 15, the paper scraps and the triangular guide block 13 move downward due to gravity. With the help of the reciprocating triangular guide block 13, the paper scraps in the feed bin 1 are assisted to contact the auxiliary clamping block 23, so as to perform continuous pushing and cutting processing;

[0063] Step 4: The pulverizing motor drives the rotating shaft 43 to rotate, and with the meshing of the bevel gear 1 44 and the bevel gear 2 18, the pipe sleeve 33 is synchronously rotated in the opposite direction, and the transmission rod 17 is rotated. The transmission rod 17, in combination with the meshing of the worm 19 and the worm wheel 29, drives the two sets of rotating rods 24 to carry the corresponding vertical cutting knives 25 to rotate, and the paper scraps discharged by the extrusion type are vertically cut;

[0064] Step 5: When the vertically cut paper scraps contact the spiral blade 31 and extend to the inside of the spiral blade 31, the spiral blade 31 carries the cross-cutting knife 1 32 and the rotating rod 24 carries the cross-cutting knife 2 42. The reverse rotation of the vertically cut paper scraps is used to first refine the cross-cutting process, and then the paper scrap fragments are pushed into the crushing cylinder 11. Combined with the reverse rotation of the crushing knife 1 41 and the crushing knife 2 35, efficient crushing is carried out, and then discharged through the discharge port on the crushing cylinder 11.

[0065] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A paper scrap shredding device adapted for a paper product processing production line, comprising a feed bin (1), and a push-in slitting unit (2) and a conveying unit (3) arranged in the feed bin (1), characterized in that: A grinding cylinder (11) is fixedly connected to the bottom of one side of the feed bin (1), and a grinding unit (4) cooperating with the conveying unit (3) is arranged inside the grinding cylinder (11); The push-in slitting unit (2) comprises two groups of adjustment seats (21) distributed in a mirror image, and a plurality of rotating belts (22) are equidistantly sleeved on the outer side of the adjustment seat (21), and a plurality of auxiliary clamping blocks (23) are equidistantly installed on the rotating belts (22); two groups of rotating rods (24) are rotatably installed in the feed bin (1), and a plurality of vertical cutting knives (25) are installed on the rotating rods (24); the conveying unit (3) comprises a spiral blade (31) and a plurality of cross-cutting knives (32) installed on the inner side of the spiral blade (31); and the crushing unit (4) comprises a plurality of crushing knives (41) and cross-cutting knives (42).

2. The paper scrap shredding device adapted for a paper product processing production line according to claim 1 is characterized in that: A rotating rod is rotatably mounted at each corner of the adjustment seat (21), and a transmission wheel matched with a corresponding rotating belt (22) is fixedly connected to the rotating rod. A feeding motor for driving the corresponding rotating rod to rotate is mounted on the adjustment seat (21) via bolts.

3. The paper scrap shredding device adapted for a paper product processing production line according to claim 1 is characterized in that: A convex block (26) is fixedly connected to the oblique surface of the auxiliary clamping block (23); a trapezoidal mounting block (27) that slides with the convex block (26) is mounted on the rotating belt (22) by means of screws; a spring (28) is connected between one side of the convex block (26) and the trapezoidal mounting block (27).

4. The paper scrap shredding device adapted for a paper product processing production line according to claim 3 is characterized in that: A fixed plate (12) is fixedly connected to the inner walls of both sides of the feed bin (1), and a triangular material guide block (13) is arranged on the top of the fixed plate (12). The bottom of the triangular material guide block (13) is connected to a linkage plate (15) via a plurality of sliding rods (14), and the sliding rods (14) are slidably connected to the fixed plate (12).

5. The paper scrap shredding device adapted for a paper product processing production line according to claim 1 is characterized in that: An adjusting block and a sliding block are fixedly connected to both sides of the adjusting seat (21), and a bidirectional screw rod (16) threadedly connected to the adjusting block is rotatably mounted on the outer wall of the feeding bin (1), as well as a guide rod fixedly connected to the sliding block in a sliding manner.

6. The paper scrap shredding device adapted for a paper product processing production line according to claim 1 is characterized in that: A pipe sleeve (33) is rotatably mounted on the feed bin (1), and a rotating disk (34) connected to the spiral blade (31) is fixedly mounted on the pipe sleeve (33).

7. The paper scrap shredding device adapted for a paper product processing production line according to claim 6 is characterized in that: A rotating shaft (43) fixedly connected to a crushing knife (41) is rotatably mounted on the crushing cylinder (11), and the rotating shaft (43) is rotatably connected to a pipe sleeve (33). A mounting frame connected to a cross-cutting knife (42) is fixedly connected to the rotating shaft (43). A bevel gear (44) is fixedly connected to both the rotating shaft (43) and the pipe sleeve (33). A crushing motor for driving the rotating shaft (43) to rotate is mounted on the crushing cylinder (11) via bolts.

8. The paper scrap shredding device adapted for a paper product processing production line according to claim 7 is characterized in that: The ends of the plurality of cross-cutting knives (32) are fixedly connected to the same mounting ring, and the mounting ring is fixedly mounted with a plurality of crushing knives (35) matched with one group of crushing knives (41).

9. The paper scrap shredding device adapted for a paper product processing production line according to claim 7 is characterized in that: A transmission rod (17) is rotatably mounted on the feed bin (1), and one end of the transmission rod (17) is fixedly connected to a bevel gear 2 (18) meshing with two sets of bevel gears 1 (44), a worm (19) is fixedly mounted on the other end of the transmission rod (17), and a worm wheel (29) meshing with the worm (19) is fixedly connected to the rotating rod (24).

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