Waste paper recycling machine for corrugated carton production

Abstract

The waste paper recycling machine for corrugated carton production comprises a crushing main body and a compression main body, a feeding port is fixed to the upper end of the crushing main body, the compression main body is fixed to the lower end of the crushing main body, and a crushing assembly used for crushing waste corrugated paper is arranged on the upper portion in the crushing main body; and the crushing assembly rotates in the crushing main body through a first motor and a second transmission gear set, and a feeding assembly used for assisting waste corrugated paper chippings to fall into the compression main body is arranged on the lower portion in the crushing main body. According to the waste paper recycling machine for corrugated carton production, the crushing roller is arranged in the crushing main body, corrugated paper waste can be crushed, the size of the corrugated paper waste is reduced, follow-up compression work is facilitated, meanwhile, the discharging roller is further arranged in the crushing main body, crushed corrugated paper chippings are preliminarily extruded through the discharging roller, and the waste paper recycling efficiency is improved. The scrap compacting device is used for compacting scraps to improve waste paper recycling and packaging work efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of waste paper recycling, and specifically to a waste paper recycling machine for corrugated cardboard box production. Background Art

[0002] Corrugated cardboard boxes are a common type of packaging container, with a delicate appearance and excellent quality, and are widely used in commodity packaging, warehousing, and transportation. They can not only protect the goods but also play a role in beautifying and promoting the goods. The materials of corrugated cardboard boxes mainly include corrugated base paper and liner board paper, where the core paper is used to make the corrugations, and the face paper or the inner paper is used for both sides.

[0003] For corrugated cardboard box production, the reel base paper is first processed through a series of processes such as corrugating, gluing, bonding and shaping, paper cutting and creasing, and transverse cutting into cardboard of specified sizes. Finally, corrugated cardboard is formed. The large sheets of cardboard produced need to be further cut into cardboard of predetermined sizes, and then a suitable die-cutting plate is selected according to the product size, characteristics, later required production volume, customer requirements, etc., and the cardboard is cut and scored according to the predetermined size and shape. Finally, the cardboard is assembled into a complete corrugated cardboard box by means of adhesive bonding or nail connection.

[0004] During the production of corrugated cardboard boxes, when the corrugated cardboard is cut, a large amount of corrugated cardboard edge waste will be generated. These waste paper materials will be recycled and reused. Currently, for the recycling of waste paper generated during the production of corrugated cardboard boxes, the waste paper materials are usually directly put into a baler for compression and baling. However, due to the limited internal space of the baler and the fact that corrugated paper has a certain strength and has a hollow structure inside itself, it is necessary to repeatedly squeeze many times during the baling process to complete the corresponding baling volume, and the waste paper extrusion and baling work is too cumbersome.

[0005] Therefore, we propose a waste paper recycling machine for corrugated cardboard box production to facilitate the solution of the problems raised above. Summary of the Invention

[0006] The purpose of the present invention is to provide a waste paper recycling machine for corrugated cardboard box production to solve the problem of low efficiency of waste paper recycling and baling work generated during the current production of corrugated cardboard boxes as mentioned in the above background art.

[0007] To achieve the above object, the present invention provides the following technical solution: A waste paper recycling machine for corrugated cardboard production, comprising a crushing main body and a compression main body. An inlet is fixed at the upper end of the crushing main body, and the compression main body is fixed at the lower end of the crushing main body. Above the interior of the crushing main body, there is a crushing assembly for crushing waste corrugated paper. The crushing assembly rotates in the crushing main body through a first motor and a second transmission gear set. Below the interior of the crushing main body, there is a feeding assembly for assisting the waste corrugated paper debris to fall into the compression main body. The feeding assembly rotates in the crushing main body through a second motor and a first transmission gear set. One end of the outer side of the compression main body is fixed with a bracket, and a first hydraulic cylinder is installed on the bracket. One end of the outer side of the compression main body is fixed with a fixed plate. The end of the first hydraulic cylinder is installed outside the fixed plate. The output end of the first hydraulic cylinder penetrates through the fixed plate, and a compression plate is fixed at the end of the output end. The compression plate is located inside the compression main body. The other end of the outer side of the compression main body is fixed with an extension plate, and a trolley is arranged inside the other end of the outer side of the compression main body. The trolley moves on the extension plate. On both sides of the other end of the compression main body, there are limit assemblies for restricting the position of the trolley.

[0008] Preferably, the crushing assembly includes crushing rollers and guide blocks. The crushing rollers are movably installed in the crushing main body through bearings, and two are arranged in the crushing main body. The crushing teeth on the two crushing rollers are arranged staggeredly. The guide blocks are fixed on the inner side surfaces of the crushing main body and the inlet. The front end of the guide block is embedded between the crushing teeth on the crushing rollers, and the upper side of the guide block is inclined.

[0009] Preferably, the feeding assembly includes feeding rollers. Two feeding rollers are arranged in the crushing main body, and inclined guide plates are arranged on the upper sides of the two feeding rollers. The guide plates are fixed on the inner wall of the crushing main body.

[0010] Preferably, a receiving plate is arranged between the crushing main body and the compression main body. A material discharge opening is formed on the receiving plate, and the material discharge opening is located at the position between the two feeding rollers.

[0011] Preferably, convex blocks are arranged on the outer sides of the feeding rollers. The outer shapes of the convex blocks are conical. Cylindrical grooves are formed on the upper side surface of the receiving plate, and the sizes of the grooves are adapted to the sizes of the feeding rollers. The lower sides of the feeding rollers are located in the grooves, and through grooves are formed in the grooves, and the positions of the through grooves are opposite to those of the convex blocks.

[0012] Preferably, the limit assembly includes limit blocks and second hydraulic cylinders. The outer shapes of the limit blocks are L-shaped, and the limit blocks are rotationally structured on the compression main body through rotating shafts. Both ends of the second hydraulic cylinder are movably connected to the compression main body and the limit blocks. The limit blocks form a stable limit structure for the trolley through the second hydraulic cylinders.

[0013] Preferably, the trolley includes a baffle, a handle, a bottom plate and rollers. A handle is fixed to the outside of the baffle. A bottom plate is fixed to the lower side of the baffle. Rollers are installed on the lower side of the bottom plate. The baffle and the bottom plate form an L-shaped structure, and the baffle is always located outside the compression body. The bottom plate is embedded and connected to the inner bottom of the compression body, and the upper side of the bottom plate is flush with the upper side of the inner bottom of the compression body.

[0014] Preferably, a support plate is provided at the inner bottom of the compression body. The upper side of the support plate is in contact connection with the lower side of the bottom plate. An empty groove is provided between the support plates. The rollers are located in the empty groove between the support plates.

[0015] Preferably, through holes are evenly distributed on the compression plate, the sides of the compression body and the baffle.

[0016] Preferably, the fixing plate is integrally provided with the compression body, and openings are provided between the upper and lower sides of the fixing plate and the compression body.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] (1) The waste paper recycling machine for corrugated cardboard production is provided with a crushing roller in the crushing body, which can crush the corrugated paper waste to reduce the volume of the corrugated paper waste, facilitating subsequent compression work. At the same time, a feeding roller is also provided in the crushing body. The crushed corrugated paper debris is preliminarily extruded by the feeding roller to compact the debris and increase the feeding amount in the compression body. Moreover, the feeding roller is provided with conical protrusions, which can assist in stabilizing the feeding work, prevent the corrugated paper debris from accumulating in the crushing body, and at the same time, the rotation of the feeding roller cooperates with the protrusions to enable stable and continuous feeding, so as to achieve the effect of continuously stuffing materials into the compression body, ensuring the fullness of the crushed materials in the compression body, and improving the waste paper recycling and packing work efficiency;

[0019] (2) A trolley is provided in the compression body, which can compress shredded paper in the trolley. At the same time, limiting blocks and second hydraulic cylinders are provided on both sides of the compression body to limit the position of the trolley, ensure the stability of the connection state of the trolley on the compression body, and thus ensure the normal progress of the shredded paper compression work. It is also convenient to directly take away the compressed shredded paper materials through the trolley, improving the waste paper recycling work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a three-dimensional structure schematic diagram of the present invention;

[0021] Figure 2 is a three-dimensional structure schematic diagram of the present invention;

[0022] Figure 3 is a cross-sectional structure schematic diagram of the present invention;

[0023] Figure 4Schematic diagram of the opening structure of the cart of the present invention;

[0024] Figure 5 Schematic cross-sectional view of the crushing main body of the present invention;

[0025] Figure 6 Schematic diagram of the receiving plate structure of the present invention;

[0026] Figure 7 Schematic cross-sectional view of the compression main body of the present invention;

[0027] Figure 8 Schematic diagram of the cart structure of the present invention;

[0028] Figure 9 Schematic diagram of the cart structure of the present invention.

[0029] In the figure: 1. Crushing main body; 2. Feeding port; 3. First motor; 4. Second motor; 5. Compression main body; 6. Bracket; 7. First hydraulic cylinder; 8. Extension plate; 9. Cart; 901. Baffle; 902. Handle; 903. Bottom plate; 904. Roller; 10. Limit block; 11. Second hydraulic cylinder; 12. First transmission gear set; 13. Second transmission gear set; 14. Crushing roller; 15. Feeding roller; 16. Guide plate; 17. Guide block; 18. Compression plate; 19. Discharge port; 20. Convex block; 21. Receiving plate; 22. Through groove; 23. Fixed plate; 24. Support plate. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0031] Please refer to Figures 1-9 , the present invention provides a technical solution: a waste paper recycling machine for corrugated cardboard production, including a crushing main body 1 and a compression main body 5. The upper end of the crushing main body 1 is fixed with a feeding port 2, and the lower end of the crushing main body 1 is fixed with a compression main body 5.

[0032] Above the interior of the crushing main body 1, there is a crushing assembly for crushing waste corrugated paper, and the crushing assembly rotates in the crushing main body 1 through the first motor 3 and the second transmission gear set 13.

[0033] Further, the crushing assembly includes a crushing roller 14 and a material guiding block 17. The crushing roller 14 is movably installed in the crushing main body 1 through bearings, and two are provided in the crushing main body 1. The crushing teeth on the two crushing rollers 14 are staggered, and the two crushing rollers 14 rotate in opposite directions through gear transmission, capable of performing stable crushing work on waste paper. The material guiding block 17 is fixed on the inner side surfaces of the crushing main body 1 and the feeding port 2. The front end of the material guiding block 17 is embedded between the crushing teeth on the crushing roller 14, and the upper side of the material guiding block 17 is inclined, which not only ensures the normal feeding of waste paper but also avoids the crushed waste paper chips from getting stuck between the crushing teeth.

[0034] A feeding assembly for assisting the waste corrugated paper chips to fall into the compression main body 5 is arranged below the interior of the crushing main body 1. The feeding assembly rotates in the crushing main body 1 through a second motor 4 and a first transmission gear set 12. Through the feeding roller 15 on the feeding assembly, the shredded paper material can be preliminarily extruded to ensure the compactness of the shredded paper material.

[0035] Further, the feeding assembly includes feeding rollers 15. Two feeding rollers 15 are provided in the crushing main body 1. The two feeding rollers 15 rotate in opposite directions through gear transmission to ensure the normal feeding of the shredded paper chips. Inclined guide plates 16 are arranged on the upper sides of the two feeding rollers 15. The guide plates 16 are fixed on the inner wall of the crushing main body 1 to ensure that the shredded paper chips can be located between the two feeding rollers 15, thus facilitating the feeding work.

[0036] Furthermore, a receiving plate 21 is provided between the crushing main body 1 and the compression main body 5. A feeding port 19 is opened on the receiving plate 21. The feeding port 19 is located at the position between the two feeding rollers 15, ensuring that the shredded paper material conveyed downward by the feeding rollers 15 can stably enter the feeding port 19, thereby ensuring the normal feeding work in the compression main body 5.

[0037] Furthermore, convex blocks 20 are arranged on the outer sides of the feeding rollers 15. The outer shapes of the convex blocks 20 are conical. The shredded paper material can be pulled by the convex blocks 20 when the feeding rollers 15 rotate to ensure stable and continuous feeding. A cylindrical groove is opened on the upper side surface of the receiving plate 21, and the size of the groove is adapted to the size of the feeding rollers 15. The lower sides of the feeding rollers 15 are located in the groove, and through grooves 22 are opened in the groove. The positions of the through grooves 22 are opposite to those of the convex blocks 20, and the adhered shredded paper material on the feeding rollers 15 can be scraped off by the receiving plate 21 to ensure that the shredded paper material stably enters the compression main body 5 through the feeding port 19.

[0038] One end of the outer side of the compression main body 5 is fixed with a bracket 6, and a first hydraulic cylinder 7 is installed on the bracket 6. One end of the outer side of the compression main body 5 is fixed with a fixing plate 23. The end of the first hydraulic cylinder 7 is installed on the outer side of the fixing plate 23. The output end of the first hydraulic cylinder 7 penetrates through the fixing plate 23, and the end of the output end is fixed with a compression plate 18. The compression plate 18 is located in the compression main body 5.

[0039] Furthermore, the fixed plate 23 is integrally provided with the compression main body 5, and both the upper and lower sides of the fixed plate 23 and the compression main body 5 are provided in an open shape. When the compression plate 18 performs the moving and compressing work, even if shredded paper materials fall to the other side of the compression plate 18, with the reciprocating movement of the compression plate 18, the shredded paper materials can be discharged through the lower opening, without affecting the normal progress of the compression work inside the compression main body 5.

[0040] At the other end outside the compression main body 5, an extension plate 8 is fixed, and inside the other end outside the compression main body 5, a trolley 9 is provided. The trolley 9 displaces on the extension plate 8, and on both sides of the other end of the compression main body 5, a limiting component for restricting the position of the trolley 9 is provided.

[0041] Furthermore, the limiting component includes a limiting block 10 and a second hydraulic cylinder 11. The limiting block 10 is in an L shape, and the limiting block 10 forms a rotating structure on the compression main body 5 through a rotating shaft. Both ends of the second hydraulic cylinder 11 are movably connected between the compression main body 5 and the limiting block 10. The limiting block 10 forms a stable limiting structure for the trolley 9 through the second hydraulic cylinder 11, realizing a stable connection state between the trolley 9 and the compression main body 5, and ensuring the normal progress of the compression work.

[0042] Furthermore, the trolley 9 includes a baffle 901, a handle 902, a bottom plate 903, and rollers 904. The handle 902 is fixed on the outer side of the baffle 901, the bottom plate 903 is fixed on the lower side of the baffle 901, the rollers 904 are installed on the lower side of the bottom plate 903. The baffle 901 and the bottom plate 903 form an L-shaped structure, and the baffle 901 is always located outside the compression main body 5. The bottom plate 903 is embedded and connected to the inner bottom of the compression main body 5, and the upper side of the bottom plate 903 is flush with the upper side of the inner bottom of the compression main body 5, ensuring that the compression plate 18 can move normally on the bottom plate 903, and further ensuring the normal progress of the compression work.

[0043] Even further, a support plate 24 is provided at the inner bottom of the compression main body 5. The upper side of the support plate 24 is in contact connection with the lower side of the bottom plate 903. An empty groove is provided between the support plates 24, and the rollers 904 are located in the empty groove between the support plates 24, which not only facilitates the docking of the bottom plate 903 with the inner bottom of the compression main body 5, but also can support the bottom plate 903, ensuring a stable working state of the bottom plate 903 during the compression work process.

[0044] Even further, through holes are evenly distributed on the side of the compression plate 18, the compression main body 5, and the baffle 901, facilitating exhaust during the compression work process.

[0045] Working principle of this embodiment: When using the waste paper recycling machine for corrugated cardboard boxes production, first start the first motor 3 and the second motor 4 to make the crushing roller 14 and the feeding roller 15 rotate normally in the crushing main body 1. Then put the collected corrugated paper waste into the feeding port 2. Through the rotation of the crushing roller 14, the crushing work of the corrugated paper waste is realized. At the same time, the guiding block 17 ensures the normal progress of the crushing work;

[0046] The waste paper after crushing falls into the crushing main body 1. Under the action of the guiding plate 16, the shredded paper scraps are concentrated at the middle position of the feeding roller 15. The feeding roller 15 rotates, and through the bumps 20 on the feeding roller 15, the stable feeding of the shredded paper scraps can be realized. And after the shredded paper scraps pass through the feeding roller 15, they will be clamped and squeezed by the two feeding rollers 15 to ensure the compaction of the shredded paper scraps;

[0047] The compacted shredded paper scraps enter the compression main body 5 through the feeding port 19 on the receiving plate 21. When the feeding roller 15 rotates, its lower side rotates in the groove on the receiving plate 21. At the same time, the bumps 20 on the feeding roller 15 will pass through the through groove 22 on the receiving plate 21 to ensure the normal rotation of the feeding roller 15. Even if there are shredded paper scraps adhered to the feeding roller 15 due to the bumps 20, they will be scraped off by the side of the middle feeding port 19 of the receiving plate 21 to ensure the stable falling of the shredded paper scraps into the feeding port 19;

[0048] Before the shredded paper scraps accumulate in the compression main body 5, first push the trolley 9 into the compression main body 5. Operate the trolley 9 through the handle 902, and realize the displacement of the trolley 9 through the rollers 904, so that the bottom plate 903 is docked with the inner bottom surface of the compression main body 5. Then the baffle 901 blocks the end opening of the compression main body 5. Through the elongation of the second hydraulic cylinder 11, the position of the limiting block 10 rotates, and then it can be buckled outside the baffle 901 to realize the limitation of the baffle 901;

[0049] When a large amount of shredded paper scraps accumulate in the compression main body 5, the feeding roller 15 can still be continuously rotated, and the shredded paper scraps can be continuously stuffed into the compression main body 5 through the feeding roller 15 to increase the amount of materials in the compression main body 5;

[0050] When the amount of materials is appropriate, stop the rotation of the feeding roller 15. The shredded paper scraps are blocked by the feeding roller 15 and will not fall. The crushing work on the crushing main body 1 can still continue, and the crushed shredded paper scraps will be temporarily stored in the crushing main body 1;

[0051] Then, the compression plate 18 is pushed by the first hydraulic cylinder 7 to move within the compression main body 5 to extrude the shredded paper scraps. As the compression plate 18 continues to advance, the extrusion force on the trolley 9 becomes greater and greater. The limit block 10 can ensure the stable position of the trolley 9. Finally, the shredded paper scraps in the compression main body 5 are extruded onto the trolley 9. After the extrusion work is completed, the limit block 10 can be opened by the second hydraulic cylinder 11. With the continuous advancement of the compression plate 18, the compressed waste paper together with the trolley 9 can be pushed out of the compression main body 5 to facilitate the rapid transfer of the compressed waste paper to a specific location;

[0052] After the trolley 9 is pushed out of the compression main body 5, the compression plate 18 is retracted by the first hydraulic cylinder 7, and a new trolley 9 can be replaced to enter the compression main body 5 to facilitate the next compression work quickly;

[0053] During the extrusion work process, if the shredded paper scraps remaining in the feeding port 19 fall to the rear side of the compression plate 18, with the retraction of the compression plate 18, the shredded paper scraps can be pushed out of the compression main body 5 through the opening on the lower side of the support plate 24 to avoid affecting the normal progress of the compression work;

[0054] The above is the working process of this recycling machine, and the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0055] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A waste paper recycling machine for corrugated paper box production, comprising a crushing body (1) and a compression body (5), characterized in that: A feed port (2) is fixed at the upper end of the crushing body (1), a compression body (5) is fixed at the lower end of the crushing body (1), a crushing assembly for crushing waste corrugated paper is arranged at the upper part of the crushing body (1), the crushing assembly rotates in the crushing body (1) through a first motor (3) and a second transmission gear set (13), a feeding assembly for assisting waste corrugated paper debris to fall into the compression body (5) is arranged at the lower part of the crushing body (1), the feeding assembly rotates in the crushing body (1) through a second motor (4) and a first transmission gear set (12); A bracket (6) is fixed to one end of the outer side of the compression body (5), and a first hydraulic cylinder (7) is installed on the bracket (6); a fixed plate (23) is fixed to one end of the outer side of the compression body (5), and an end of the first hydraulic cylinder (7) is installed on the outer side of the fixed plate (23); an output end of the first hydraulic cylinder (7) passes through the fixed plate (23), and a compression plate (18) is fixed to the end of the output end, and the compression plate (18) is located in the compression body (5); an extension plate (8) is fixed to the other end of the outer side of the compression body (5), and a trolley (9) is provided inside the other end of the outer side of the compression body (5), and the trolley (9) is displaced on the extension plate (8), and limit components for limiting the position of the trolley (9) are provided on both sides of the other end of the compression body (5).

2. A waste paper recycling machine for corrugated box production according to claim 1, characterized in that: The crushing assembly comprises a crushing roller (14) and a guide block (17). The crushing roller (14) is movably mounted in the crushing body (1) via a bearing, and two crushing rollers (14) are arranged in the crushing body (1). The crushing teeth on the two crushing rollers (14) are arranged alternately. The guide block (17) is fixed on the inner side of the crushing body (1) and the feed port (2). The front end of the guide block (17) is embedded between the crushing teeth on the crushing roller (14), and the upper side of the guide block (17) is inclined.

3. The waste paper recycling machine for corrugated box production according to claim 1, characterized in that: The feeding assembly comprises a material discharge roller (15), two of which are arranged in the crushing body (1), and an inclined material guide plate (16) is arranged on the upper side of the two material discharge rollers (15), and the material guide plate (16) is fixed on the inner wall of the crushing body (1).

4. The waste paper recycling machine for corrugated box production according to claim 3, characterized in that: A receiving plate (21) is provided between the crushing body (1) and the compression body (5), and a material discharge port (19) is provided on the receiving plate (21), and the material discharge port (19) is located between the two material discharge rollers (15).

5. The waste paper recycling machine for corrugated paper box production according to claim 4, characterized in that: A protrusion (20) is provided on the outer side of the material discharge roller (15), and the protrusion (20) is conical in shape. A cylindrical groove is provided on the upper side of the receiving plate (21), and the size of the groove is adapted to the size of the material discharge roller (15). The lower side of the material discharge roller (15) is located in the groove, and a through groove (22) is provided in the groove, and the through groove (22) is opposite to the position of the protrusion (20).

6. The waste paper recycling machine for corrugated paper box production according to claim 1, characterized in that: The limiting assembly comprises a limiting block (10) and a second hydraulic cylinder (11); the limiting block (10) is L-shaped in appearance, and the limiting block (10) forms a rotating structure on the compression body (5) through a rotating shaft; both ends of the second hydraulic cylinder (11) are movably connected to the compression body (5) and the limiting block (10); the limiting block (10) forms a stable limiting structure for the cart (9) through the second hydraulic cylinder (11).

7. The waste paper recycling machine for corrugated paper box production according to claim 1, characterized in that: The cart (9) comprises a baffle (901), a handle (902), a bottom plate (903) and a roller (904); the handle (902) is fixed on the outer side of the baffle (901); the bottom plate (903) is fixed on the lower side of the baffle (901); the roller (904) is installed on the lower side of the bottom plate (903); the baffle (901) and the bottom plate (903) form an L-shaped structure, and the baffle (901) is always located on the outer side of the compression body (5); the bottom plate (903) is embedded in the inner bottom of the compression body (5), and the upper side of the bottom plate (903) is flush with the upper side of the inner bottom of the compression body (5).

8. The waste paper recycling machine for corrugated paper box production according to claim 7, characterized in that: A support plate (24) is provided at the inner bottom of the compression body (5); the upper side of the support plate (24) is in contact with the lower side of the bottom plate (903); empty grooves are provided between the support plates (24); and the roller (904) is located in the empty grooves between the support plates (24).

9. The waste paper recycling machine for corrugated box production according to claim 7, characterized in that: Through holes are evenly distributed on the compression plate (18), the side of the compression body (5) and the baffle (901).

10. The waste paper recycling machine for corrugated box production according to claim 1, characterized in that: The fixing plate (23) is integrally arranged with the compression body (5), and the upper and lower sides of the fixing plate (23) and the compression body (5) are both arranged in an opening shape.

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