An extrusion briquetting mechanism of a paper scrap briquetting machine
By designing a material passage hole and a clearance hole in the paper scrap briquetting machine, combined with the gradually narrowing channel of the discharge pipe and the external port extrusion, the problem of loose paper blocks is solved, and the compact forming and stable block maintenance of paper scraps are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG SANMU INFORMATION SECURITY CO LTD
- Filing Date
- 2025-08-01
- Publication Date
- 2026-07-14
AI Technical Summary
In existing paper scrap briquetting machines, the formed paper blocks are not compact, have difficulty maintaining a stable block shape, and are prone to falling apart.
A paper scrap briquetting machine with an extrusion and briquetting mechanism is designed. By setting a material passage hole on the side of the receiving seat and a clearance hole on the side of the discharge pipe, the paper scraps are initially compressed through a gradually narrowing channel before entering the discharge pipe, and then formed into a compact paper block by the extrusion at the outer end of the discharge pipe.
It achieves initial compression and final compaction of paper scraps, ensuring that the paper blocks can better maintain their block shape and are less likely to fall apart.
Smart Images
Figure CN224490201U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of mechanical technology and relates to a paper scrap briquetting machine, and more particularly to an extrusion and briquetting mechanism of the paper scrap briquetting machine. Background Technology
[0002] After paper documents are used up, they are usually shredded into paper scraps using a paper shredder, and then briquetted for easy storage or transportation. The briquetting of paper scraps is done by a briquetting machine. For example, an automatic briquetting machine for paper media tailings disclosed in patent application number 202311517381.6 includes a housing and a suction fan, a cyclone separator, a collecting device, a pressing device, and a control system all housed within the housing. The collecting device includes a mixing tank, a mixing motor, and mixing blades. A collecting port is located at the top of the mixing tank and communicates with the cyclone separator. A discharge port is located at the bottom of the mixing tank and communicates with the pressing device. The mixing blades are located inside the mixing tank and are connected to the mixing motor. The pressing device includes… The mounting base includes a pushing hydraulic cylinder, a pressing chamber, a discharge pipe, and a clamping hydraulic cylinder, all mounted on the mounting base. The pressing chamber is a circular tube with an inlet on the top side of the middle section that connects to the discharge port of the collecting device. The clamping hydraulic cylinder is located above the discharge pipe, and the side of the discharge pipe has a squeezing slit to squeeze the paper media tail material in the discharge pipe downwards through the clamping hydraulic cylinder. The pushing hydraulic cylinder, pressing chamber, and discharge pipe are connected in sequence so that the pushing hydraulic cylinder sequentially pushes the paper media tail material in the pressing chamber and the discharge pipe out of the discharge pipe. The output shaft of the pushing hydraulic cylinder is equipped with a top head. In use, the paper media tail material is sucked up by a suction fan, and then the dust in the air is separated from the paper media tail material by a cyclone separator. The paper media enters the collecting device, and the stirring motor in the collecting device drives the stirring blades to rotate, pushing the paper media tail material in the stirring tank to the discharge port and falling into the pressing chamber.
[0003] When the paper media tail material reaches a certain deposition amount in the briquetting chamber, the pushing hydraulic cylinder advances, squeezing the paper media tail material out of the discharge pipe. Simultaneously, the clamping hydraulic cylinder above the discharge pipe clamps the discharge pipe, forming a conical pipe. Utilizing the principle that the conical compression of the tail material becomes increasingly tighter, the paper media tail material is briquetting and forming. However, according to its instruction manual... Figure 4 It is clear that the briquetting chamber is located above the discharge pipe, and the two are directly connected vertically. This means that after the paper medium enters the briquetting chamber, it falls directly into the discharge pipe. In this case, the paper medium is in an expanded and relatively loose state inside the discharge pipe, resulting in the paper block formed by compression when it exits the discharge pipe not being actually compact. Therefore, it cannot stably maintain the block shape and is easily scattered. Utility Model Content
[0004] The purpose of this invention is to address the aforementioned problems in the existing technology by proposing an extrusion and briquetting mechanism for a paper scrap briquetting machine, which solves the problem that the formed paper blocks are not compact and cannot stably maintain their block shape.
[0005] The objective of this utility model can be achieved through the following technical solutions:
[0006] A briquetting mechanism for a paper scrap briquetting machine, the paper scrap briquetting machine including a frame and a stirring device fixed on the frame and having a discharge port at the bottom, the briquetting mechanism including a receiving seat located below the stirring device and having a receiving cavity opposite to the discharge port, a discharge pipe arranged horizontally and having an adjustable outer port size, and a pusher provided at the inner end of the discharge pipe, characterized in that the discharge pipe is fixed on one side of the receiving seat and the receiving seat has a through hole communicating with the receiving cavity on this side, the through hole gradually decreasing in size towards the axis of the discharge pipe, a relief hole correspondingly provided on the side of the discharge pipe, the relief hole being opposite to the through hole and the walls of the two holes being flush, a guide hole provided on the other side of the receiving seat, the guide hole communicating with the receiving cavity and being opposite to the through hole, a top material block being slidably arranged in the guide hole, the top material block being able to pass through the receiving cavity to the through hole, and a driving member fixed outside the receiving seat to drive the top material block to move.
[0007] During operation, paper scraps are sucked into the mixing device, where they are continuously agitated and swept into the discharge port, falling into the receiving chamber of the receiving seat. Once a certain amount of paper scraps is collected in the receiving chamber, the drive unit moves the top block into the feed hole. As the top block moves, the paper scraps are pushed into the feed hole and then through the clearance hole into the discharge pipe. Afterward, the outer end of the discharge pipe is narrowed, and the pusher is controlled to move, pushing the paper scraps fed into the discharge pipe towards its outer end. Because the outer end of the discharge pipe is narrowed, it forms a constricted state, equivalent to a change in diameter creating a taper. Thus, as the paper scraps are pushed out of the discharge pipe, they are continuously compressed and eventually formed into a block shape.
[0008] This extrusion and block-forming mechanism fixes the discharge pipe to one side of the receiving seat. A material passage hole is provided on the side of the receiving seat, and a corresponding clearance hole is provided on the side of the discharge pipe. The clearance hole and the material passage hole are aligned, ensuring that paper scraps entering the receiving seat from the discharge port of the mixing device do not fall directly into the discharge pipe. Instead, they must pass through the channel formed by the material passage hole and the clearance hole to enter the discharge pipe. Furthermore, by setting the material passage hole to gradually decrease in size towards the axis of the discharge pipe, and by ensuring the wall of the clearance hole is flush with the wall of the material passage hole, the channel formed by the material passage hole and the clearance hole gradually narrows, thus providing initial compression of the paper scraps. This initial compression makes the paper scraps entering the discharge pipe less loose. Then, the compression as the paper scraps are pushed out from the outer end of the discharge pipe results in a more compact paper block that better maintains its shape and is less likely to crumble.
[0009] It should be noted that the length of the channel formed by the feed hole and the clearance hole is very short. Therefore, in practice, paper scraps will not be compressed tightly in the channel formed by the feed hole and the clearance hole, causing blockage.
[0010] In the extrusion and briquetting mechanism of the paper scrap briquetting machine described above, both the material passage hole and the clearance hole are square holes. The upper and lower walls of the material passage hole are inclined in opposite directions. The distance between the upper and lower walls of the material passage hole gradually decreases along the direction close to the axis of the discharge pipe, and the top material block is square in shape.
[0011] The upper and lower walls of the feed hole are both inclined in opposite directions. The distance between the upper and lower walls of the feed hole gradually decreases along the direction close to the axis of the discharge pipe, so that the feed hole gradually decreases in the direction close to the axis of the discharge pipe. This can play a preliminary compression role on the paper scraps as they are pushed from the receiving chamber into the discharge pipe.
[0012] In the extrusion and briquetting mechanism of the paper scrap briquetting machine described above, the side of the receiving seat is provided with abutment, the abutment is provided with an arc-shaped mating groove, the material passage hole penetrates the bottom wall of the mating groove, and the side wall of the discharge pipe is in contact with the bottom wall of the mating groove.
[0013] An arc-shaped mating groove is provided on the abutment part. The side wall of the discharge pipe abuts against the bottom wall of the mating groove, so that the relief hole and the material passage hole can form a stable connection with the hole walls flush. This ensures that the paper scraps can be initially compressed when passing through the channel formed by the material passage hole and the relief hole.
[0014] In the extrusion and briquetting mechanism of the paper scrap briquetting machine described above, the driving component is a hydraulic cylinder / air cylinder, and a connecting part is provided at the end of the top material block away from the discharge pipe. The piston rod of the hydraulic cylinder / air cylinder is fixedly connected to the connecting part.
[0015] In the extrusion and briquetting mechanism of the aforementioned paper scrap briquetting machine, the outer end of the discharge pipe extends out of the frame, and the outer end of the discharge pipe is symmetrically provided with deformation grooves. The deformation grooves are strip-shaped along the axial direction of the discharge pipe, and the outer end of the discharge pipe is divided into two sheet-like parts by the two deformation grooves. An adjusting hydraulic cylinder and a limiting block are fixed outside the frame. A top pressing block is fixedly connected to the piston rod end of the adjusting hydraulic cylinder. The top pressing block has an arc-shaped notch on the side facing away from the adjusting hydraulic cylinder. The limiting block abuts against the outer side of one of the aforementioned sheet-like parts, and the other aforementioned sheet-like part is located inside the notch.
[0016] Symmetrical deformation grooves are made on the outer side of the discharge pipe. The two deformation grooves are strip-shaped along the axial direction of the discharge pipe, which divides the outer end of the discharge pipe into two sheet-like parts. Since the outer side of one sheet-like part abuts against the limiting block fixed on the frame, while the other sheet-like part is located in the arc-shaped recess of the top pressure block, adjusting the piston rod of the hydraulic cylinder will cause the top pressure block to press against the corresponding sheet-like part. With the help of the two deformation grooves, the outer end of the discharge pipe is in a contracted state, which is equivalent to a change in diameter and a tapered shape. In this way, as the paper scraps are pushed out of the discharge pipe, they are continuously squeezed and eventually formed into the required block shape.
[0017] By setting an arc-shaped notch on the top pressure block, the top pressure block can better fit with the corresponding sheet-like part, resulting in a larger contact area. This ensures that the entire corresponding sheet-like part will deform when the piston rod of the adjusting hydraulic cylinder is pushed out.
[0018] In the extrusion and briquetting mechanism of the paper scrap briquetting machine described above, a positioning block is also fixed outside the frame. A limiting block is arranged opposite to the positioning block. A semi-circular groove is provided on the side of the limiting block and the positioning block opposite to each other. The limiting block and the positioning block are fixed. An installation groove is opened on the groove wall of the semi-circular groove of the positioning block. The top pressing block is located in the installation groove. The adjusting hydraulic cylinder is fixed on the side of the positioning block facing away from the limiting block.
[0019] The positioning block provides a position for fixing the hydraulic cylinder on the frame, while the top pressure block is inside the positioning block and the mounting groove provides space for the top pressure block to move. In this way, the top pressure block is basically not visible from the outside, resulting in better overall integrity.
[0020] Compared with existing technologies, the extrusion and briquetting mechanism of this paper scrap briquetting machine fixes the discharge pipe to one side of the receiving seat, and sets a material passage hole on the side of the receiving seat and a corresponding clearance hole on the side of the discharge pipe. The material passage hole gradually decreases in size towards the axis of the discharge pipe, and the wall of the clearance hole is flush with the wall of the material passage hole. This ensures that after the paper scraps enter the receiving seat, they must pass through the channel formed by the material passage hole and the clearance hole to enter the discharge pipe. Moreover, the channel formed by the material passage hole and the clearance hole gradually decreases in size, which can play a preliminary compression role on the paper scraps, ensuring that the paper scraps entering the discharge pipe are not so loose. Then, with the extrusion and compression when the paper scraps are pushed out from the outer end of the discharge pipe, the final extruded paper block is more compact and can better maintain the block shape and is not easy to fall apart. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of a paper scrap briquetting machine.
[0022] Figure 2 This is an internal diagram of a paper scrap briquetting machine.
[0023] Figure 3 This is another internal view of the paper scrap briquetting machine.
[0024] Figure 4 This is a three-dimensional schematic diagram of the extrusion block-making mechanism.
[0025] Figure 5 This is a cross-sectional view of the extrusion and block-forming mechanism.
[0026] Figure 6 yes Figure 5 Sectional view along the AA direction.
[0027] Figure 7 This is a 3D schematic diagram of the receiving base.
[0028] Figure 8 yes Figure 1 A cross-sectional view of the outer end of the feed tube.
[0029] Figure 9 This is a schematic diagram showing the fit between the top pressure block and the positioning block.
[0030] In the diagram, 1 is the frame; 2 is the mixing device; 3 is the receiving seat; 3a is the receiving chamber; 3b is the material passage hole; 3c is the guide hole; 3d is the abutment part; 3d1 is the mating groove; 4 is the discharge pipe; 4a is the clearance hole; 4b is the deformation groove; 5 is the pushing part; 6 is the mounting base; 7 is the pushing hydraulic cylinder; 8 is the top block; 8a is the connecting part; 9 is the driving part; 10 is the adjusting hydraulic cylinder; 11 is the limit block; 12 is the top pressure block; 12a is the notch; 13 is the positioning block; 13a is the mounting groove; and 14 is the cyclone separator. Detailed Implementation
[0031] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.
[0032] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a paper scrap briquetting machine includes a briquetting mechanism. The briquetting machine comprises a frame 1 and a stirring device 2 fixed on the frame 1. A cyclone separator 14 is fixed to the top of the stirring device 2, and a discharge port is located at the bottom of the stirring device 2. Rotatable stirring blades are provided inside the stirring device 2, which can sweep paper scraps into the discharge port. The structure of the stirring device 2 can refer to the material collection device in an automatic paper media tail material briquetting machine disclosed in patent application number 202311517381.6 mentioned in the background art, and will not be described again in this embodiment. This briquetting mechanism includes a receiving seat 3 and a discharge pipe 4. The receiving seat 3 is fixed on the frame 1 and located below the stirring device 2. The receiving seat 3 is provided with a receiving cavity 3a, the opening of which is located at the top of the receiving seat 3, and the jaws of the receiving cavity 3a are connected to the discharge port of the stirring device 2. The discharge pipe 4 is set horizontally, and the outer end of the discharge pipe 4 extends out of the frame 1. The size of the outer port of the discharge pipe 4 is adjustable. Specifically, the discharge pipe 4 is a round pipe. A mounting base 6 is fixed on the frame 1, and a pushing hydraulic cylinder 7 is fixed on the mounting base 6. The inner end of the discharge pipe 4 is fixedly connected to the mounting base 6, and the end of the pushing hydraulic cylinder 7 extends into the inner end of the discharge pipe 4 and is fixedly connected to the pushing component 5.
[0033] like Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, a pusher 5 is provided inside the inner end of the discharge pipe 4. The pusher 5 can move along the axial direction of the discharge pipe 4 and is in the shape of a cylindrical block. The discharge pipe 4 is fixed to one side of the receiving seat 3. The receiving seat 3 has a material passage hole 3b communicating with the receiving cavity 3a on this side. The central axis of the material passage hole 3b is perpendicular to the discharge pipe 4. The material passage hole 3b gradually decreases in size towards the axis of the discharge pipe 4. A clearance hole 4a is correspondingly provided on the side of the discharge pipe 4. The clearance hole 4a is connected to the material passage hole 3b and the walls of the two holes are flush. On the other side of the receiving seat 3, there is a guide hole 3c, which communicates with the receiving cavity 3a. The guide hole 3c is opposite to the material passage hole 3b. A top material block 8 is slidably disposed in the guide hole 3c. The top material block 8 can pass through the receiving cavity 3a into the material passage hole 3b. In this embodiment, both the material passage hole 3b and the clearance hole 4a are square holes. The distance between the upper and lower walls of the material passage hole 3b gradually decreases along the direction close to the axis of the discharge pipe 4. The top material block 8 is square in shape, and its cross-sectional area is between the maximum and minimum cross-sectional areas of the material passage hole 3b. The side of the receiving seat 3 is provided with an abutment part 3d, which is provided with an arc-shaped mating groove 3d1. The material passage hole 3b penetrates the bottom wall of the mating groove 3d1, and the side wall of the discharge pipe 4 is in contact with the bottom wall of the mating groove 3d1. The receiving seat 3 is fixed with a driving component 9 that can drive the top material block 8 to move. The driving component 9 is a hydraulic cylinder / air cylinder. The end of the top material block 8 away from the discharge pipe 4 has a protruding connecting part 8a. The piston rod of the hydraulic cylinder / air cylinder is fixedly connected to the connecting part 8a.
[0034] Furthermore, such as Figure 1 , Figure 4 , Figure 8 and Figure 9 As shown, deformation grooves 4b are symmetrically formed on the outer side of the discharge pipe 4. The deformation grooves 4b are strip-shaped along the axial direction of the discharge pipe 4, and the outer end of the discharge pipe 4 is divided into two plate-like parts by the two deformation grooves 4b. An adjusting hydraulic cylinder 10 and a limiting block 11 are fixedly fixed to the outside of the frame 1. A pressing block 12 is fixedly connected to the piston rod end of the adjusting hydraulic cylinder 10. The pressing block 12 has an arc-shaped notch 12a on the side facing away from the adjusting hydraulic cylinder 10. The limiting block 11 abuts against the side of one of the plate-like parts, and the other plate-like part is located in the notch 12a. A positioning block 13 is also fixed outside the frame 1. The limiting block 11 is set opposite to the positioning block 13. The limiting block 11 and the positioning block 13 are provided with a semi-circular groove on the opposite side. The limiting block 11 and the positioning block 13 are fixed together. An installation groove 13a is opened on the groove wall of the semi-circular groove of the positioning block 13. The top pressing block 12 is set in the installation groove 13a. The adjusting hydraulic cylinder 10 is fixed on the side of the positioning block 13 facing away from the limiting block 11. The piston rod of the adjusting hydraulic cylinder 10 is inserted into the installation groove 13a.
[0035] During operation, paper scraps are drawn into the mixing device 2 via the cyclone separator 14. The rotating blades in the mixing device 2 continuously sweep the paper scraps into the discharge port and drop them into the receiving chamber 3a of the receiving seat 3. Once a certain amount of paper scraps is collected in the receiving chamber 3a, the driving component 9 drives the top block 8 to move into the through hole 3b. As the top block 8 moves, the paper scraps are pushed into the through hole 3b and then through the clearance hole 4a into the discharge pipe 4. Because the through hole 3b gradually decreases in size towards the axis of the discharge pipe 4, and the clearance hole 4a is flush with the through hole 3b, the passage for the paper scraps from the receiving chamber 3a to the discharge pipe 4 gradually narrows. This results in the paper scraps being initially compressed as they enter the discharge pipe 4 from the receiving chamber 3a.
[0036] Subsequently, the piston rod of the control and adjusting hydraulic cylinder 10 extends, causing the top pressing block 12 to press against one of the sheet-like portions separated by two deformation grooves 4b. Since the other sheet-like portion separated by the two deformation grooves 4b abuts against the limiting block 11 fixed to the frame 1, the thrust of the piston rod of the control and adjusting hydraulic cylinder 10, combined with the arrangement of the two deformation grooves 4b, causes the outer port of the discharge pipe 4 to contract. Finally, the piston rod of the pushing hydraulic cylinder 7 extends, causing the pushing component 5 to push the paper scraps fed into the discharge pipe 4 towards the outer port of the discharge pipe 4. Because the outer port of the discharge pipe 4 is in a contracted state, it is equivalent to a change in diameter, forming a taper. Thus, during the process of the paper scraps being pushed out of the discharge pipe 4, the paper scraps are continuously squeezed and eventually formed into a block shape.
[0037] This extrusion and agglomeration mechanism fixes the discharge pipe 4 to one side of the receiving seat 3. A material passage hole 3b is provided on the side of the receiving seat 3, and a corresponding clearance hole 4a is provided on the side of the discharge pipe 4. The clearance hole 4a is aligned with the material passage hole 3b. This ensures that paper scraps entering the receiving seat 3 from the discharge port of the mixing device 2 do not fall directly into the discharge pipe 4, but must pass through the channel formed by the material passage hole 3b and the clearance hole 4a to enter the discharge pipe 4. Furthermore, by setting the material passage hole 3b to gradually decrease in size towards the axis of the discharge pipe 4, and by ensuring that the wall of the clearance hole 4a is flush with the wall of the material passage hole 3b, the channel formed by the material passage hole 3b and the clearance hole 4a gradually narrows, thus achieving a preliminary compression effect on the paper scraps. After the initial compression here, the paper scraps entering the discharge pipe 4 are no longer so loose. Then, with the squeezing and compression when the paper scraps are pushed out from the outer port of the discharge pipe 4, the paper block that is finally squeezed and formed is more compact and can better maintain the shape of the block and is not easy to fall apart.
[0038] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.
Claims
1. A briquetting mechanism for a paper scrap briquetting machine, the paper scrap briquetting machine comprising a frame (1) and a stirring device (2) fixed on the frame (1) and having a discharge port at the bottom, the briquetting mechanism comprising a receiving seat (3) located below the stirring device (2) and having a receiving cavity (3a) opposite to the discharge port, a discharge pipe (4) arranged horizontally and having an adjustable outer port size, and a pusher (5) disposed at the inner end of the discharge pipe (4), characterized in that, The discharge pipe (4) is fixed on one side of the receiving seat (3), and the receiving seat (3) is provided with a material passage hole (3b) communicating with the receiving cavity (3a) on this side. The material passage hole (3b) gradually decreases in size towards the axis of the discharge pipe (4). The side of the discharge pipe (4) is provided with a clearance hole (4a). The clearance hole (4a) is connected to the material passage hole (3b) and the holes of the two are flush. The other side of the receiving seat (3) is provided with a guide hole (3c). The guide hole (3c) is connected to the receiving cavity (3a) and is arranged opposite to the material passage hole (3b). A top material block (8) is slidably arranged in the guide hole (3c). The top material block (8) can pass through the receiving cavity (3a) to the material passage hole (3b). A driving member (9) that can drive the top material block (8) to move is fixed outside the receiving seat (3).
2. The extrusion and briquetting mechanism of a paper scrap briquetting machine according to claim 1, characterized in that, The material passage hole (3b) and the clearance hole (4a) are both square holes. The upper and lower walls of the material passage hole (3b) are inclined and their inclination directions are opposite. The distance between the upper and lower walls of the material passage hole (3b) gradually decreases along the direction close to the axis of the discharge pipe (4). The top block (8) is square in shape.
3. The extrusion and briquetting mechanism of a paper scrap briquetting machine according to claim 2, characterized in that, The receiving seat (3) has a side abutment (3d), the abutment (3d) has an arc-shaped mating groove (3d1), the material passage hole (3b) penetrates the bottom wall of the mating groove (3d1), and the side wall of the discharge pipe (4) is in contact with the bottom wall of the mating groove (3d1).
4. The extrusion and briquetting mechanism of a paper scrap briquetting machine according to claim 1, 2, or 3, characterized in that, The driving component (9) is a hydraulic cylinder / air cylinder. The end of the top block (8) away from the discharge pipe (4) is provided with a connecting part (8a). The piston rod of the hydraulic cylinder / air cylinder is fixedly connected to the connecting part (8a).
5. The extrusion and briquetting mechanism of a paper scrap briquetting machine according to claim 1, 2, or 3, characterized in that, The outer end of the discharge pipe (4) extends out of the frame (1). The outer end of the discharge pipe (4) is symmetrically provided with deformation grooves (4b). The deformation grooves (4b) are strip-shaped along the axial direction of the discharge pipe (4), and the outer end of the discharge pipe (4) is divided into two sheet-like parts by the two deformation grooves (4b). An adjusting hydraulic cylinder (10) and a limiting block (11) are fixed outside the frame (1). A top pressing block (12) is fixedly connected to the piston rod end of the adjusting hydraulic cylinder (10). The top pressing block (12) has an arc-shaped notch (12a) on the side facing away from the adjusting hydraulic cylinder (10). The limiting block (11) abuts against the outer side of one of the sheet-like parts, and the other sheet-like part is located in the notch (12a).
6. The extrusion and briquetting mechanism of a paper scrap briquetting machine according to claim 5, characterized in that, A positioning block (13) is fixed outside the frame (1). A limiting block (11) is set opposite to the positioning block (13). A semi-circular groove is provided on the opposite side of the limiting block (11) and the positioning block (13). The limiting block (11) and the positioning block (13) are fixed together. An installation groove (13a) is opened on the groove wall of the semi-circular groove of the positioning block (13). A top pressing block (12) is set in the installation groove (13a). An adjusting hydraulic cylinder (10) is fixed on the side of the positioning block (13) facing away from the limiting block (11).