A slitter recovery roll structure with a paper tube pre-assembly

By designing a paper tube pre-assembly kit and a rotary switch, the problem of manual adjustment of the paper tubes in the slitting machine was solved, achieving automated installation and stable rotation, thus improving production efficiency and paper recycling accuracy.

CN224590307UActive Publication Date: 2026-08-04HUASONG PAPER (MAANSHAN) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUASONG PAPER (MAANSHAN) CO LTD
Filing Date
2025-09-30
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Existing slitting machines require manual placement and adjustment of multiple paper tubes after paper slitting, resulting in long downtime. Furthermore, traditional fixing methods cannot achieve synchronous opening and closing of the paper tubes, affecting production efficiency.

Method used

Design a slitting machine recycling roller structure with paper tube pre-assembly, including an air shaft, a reinforcing cylinder, a rotary switch and a paper tube pre-assembly. The paper tube is pre-fixed and automatically installed by the air shaft and the lifting cylinder, and the paper tube is stably rotated by the transmission cylinder and the drive component.

Benefits of technology

It enables automated pre-fixing and installation of paper tubes, reducing equipment downtime, improving production efficiency and the accuracy of paper recycling, and avoiding paper tangling errors.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a slit machine recovery roller structure with paper tube pre -sleeve set relates to workpiece fixture technical field, including frame and the recovery roller of being located frame bottom, the main part of recovery roller is gas inflation axle, be installed with the reinforcing cylinder in the frame department, and the reinforcing cylinder is connected on recovery roller, and the end of recovery roller away from reinforcing cylinder is installed with the rotary switch spare, and the bottom of rotary switch spare is connected with frame, and the upper end is used for the movable load recovery roller, and the paper tube pre -sleeve set is connected on recovery roller, the paper tube pre -sleeve set includes a plurality of phase sleeve position cylinder, and is provided with a plurality of group of tubular part no.
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Description

Technical Field

[0001] This utility model relates to the field of workpiece clamping technology, specifically to a slitting machine recycling roller structure with a paper tube pre-assembly kit. Background Technology

[0002] The roll paper slitting machine is a powerful type of roll paper slitting equipment, characterized by stable operation, convenient operation, high speed, high precision, strong adaptability, and high output. It can also be called a roll paper cutter, high-speed slitting machine, or high-speed cutting machine. It is widely used in the papermaking, paper trading, and printing industries.

[0003] In principle, the material is fed from one end, a raw material roller is installed, and the material is introduced into the equipment. After being guided, aligned and wound, it enters the slitting roller and the pressure roller. The raw paper on the raw material roller is cut between the slitting roller and the pressure roller to be cut into paper of the required spacing. The paper is then wound onto the paper tube for recycling.

[0004] Existing methods involve cutting a wide roll of paper into smaller, equal-width sheets, which are then wound onto a paper roll. Reference CN202321741580.0, a roll paper slitting machine, only describes the cutting process and does not explain the subsequent recycling. Further reference CN201621096679.X, a raw paper slitting and rewinding machine, utilizes a liftable roll shaft for recycling.

[0005] However, conventionally slit paper requires multiple paper rolls for recycling, which are placed on recycling rollers. Current methods still involve manually placing multiple sets of paper rolls, requiring individual positioning and adjustment, thus necessitating significant downtime for installation. Secondly, the latter literature describes using telescopic cylinders to fix both ends of the roll shaft, enabling opening and closing. This only allows for simultaneous opening, causing the roll shaft to drop and complete unloading. Therefore, multiple roll shafts are required, and it's not possible to separate the slit rolls individually.

[0006] To address these issues, we provide a slitting machine recycling roller structure with pre-assembled paper tubes. Utility Model Content

[0007] The purpose of this utility model is to make up for the shortcomings of the existing technology and provide a slitting machine recycling roller structure with paper tube pre-assemblies, so as to solve the technical problem that the existing traditional method still requires manual placement of multiple sets of paper tubes and requires one-by-one position adjustment and positioning, thus requiring a long period of downtime for installation.

[0008] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a slitting machine recycling roller structure with paper tube pre-assembly, including a frame and a recycling roller located at the bottom of the frame, wherein the main body of the recycling roller is an air shaft, and one end is used for a driving component to drive rotation;

[0009] A reinforcing cylinder is installed at the frame and is sleeved on the recovery roller; a rotary switch is installed at the end of the recovery roller away from the reinforcing cylinder;

[0010] The bottom end of the rotary switch is connected to the frame, and the upper end is used to flexibly support the recycling roller;

[0011] A paper tube pre-assembly kit is fitted onto the recycling roller. The paper tube pre-assembly kit includes multiple nested position tubes. Multiple sets of cylindrical sections are provided on the position tubes. The paper tubes correspond one-to-one with the cylindrical sections. The paper tubes are adapted to be installed on the cylindrical sections, and the adjacent position tubes jointly constrain the position of the paper tubes. Constraints are installed between adjacent position tubes.

[0012] In a further technical solution, the frame has an internal cavity, and a transmission cylinder is installed inside the internal cavity. An air passage pipe connecting the transmission cylinder to the recovery roller is connected inside the transmission cylinder. A connecting bearing is installed at the outer end of the transmission cylinder and connected to the frame. A transmission component is fixedly installed outside the transmission cylinder and connected to the drive component.

[0013] In a further technical solution, the transmission component is a pulley one, and the driving component includes a drive motor and a pulley two, with pulley one and pulley two connected by a transmission belt; the output shaft of the drive motor drives pulley two to rotate.

[0014] In a further technical solution, the position tube includes an annular plate portion, a cylindrical portion one, and a cylindrical portion two. The cylindrical portion one and the cylindrical portion two are located on both sides of the annular plate portion, and the diameter of the cylindrical portion one is smaller than the diameter of the cylindrical portion two, and the diameter of the cylindrical portion two is smaller than the diameter of the annular plate portion; the width of the paper tube is smaller than the width of the cylindrical portion one.

[0015] In a further technical solution, the constraint member is a locking bolt; the outer surface of the cylindrical part two is polygonal and has a central circular hole inside;

[0016] The second cylindrical part has a positioning threaded hole inside, and the first cylindrical part has a positioning blind hole on the side away from the ring plate; the locking bolt is used to pass through the positioning threaded hole and connect with the positioning blind hole of the adjacent position cylinder.

[0017] Multiple sets of position cylinders are connected sequentially through cylindrical section one and cylindrical section two.

[0018] In a further technical solution, a small-diameter ring is provided on the outer side of the second cylindrical part, the diameter of which is not greater than the diameter of the paper tube mounted on the first cylindrical part; the small-diameter ring is movably abutted against the side wall of the paper tube.

[0019] In a further technical solution, the rotary switch includes a rotary arm, and the frame has an installation groove, with a hinge seat one and a hinge seat two installed above and below the installation groove, respectively.

[0020] One end of the rotating arm is rotatably connected to the hinge seat, and a fixed shaft is provided on the body of the rotating arm.

[0021] A lifting cylinder is connected to the second hinge seat, and a connecting sleeve is installed on the output end of the lifting cylinder and rotatably mounted on the fixed shaft.

[0022] In a further technical solution, the rotating arm is bent and a stepped opening is provided at the end away from the hinge seat; a connecting recess plate is detachably installed at the stepped opening, and the two sides of the connecting recess plate are fixed to the rotating arm by bolts; a recessed part is opened in the connecting recess plate, the recessed part is arc-shaped, and the recessed part is engaged with the end of the recovery roller away from the transmission cylinder.

[0023] A limit cylinder is detachably installed on the outside of the connecting notch plate. The output end of the limit cylinder passes through the connecting notch plate and a roller is installed at the output end. The roller abuts against the surface of the recovery roller. When the recovery roller rotates, the roller rolls synchronously with the recovery roller.

[0024] In a further technical solution, multiple sets of balls are circumferentially installed inside the recess, and the balls are built into the recess and rotate; the balls are used to abut the end of the recovery roller to keep the recovery roller rotating.

[0025] Compared with existing technologies, it has the following advantages:

[0026] This invention uses a pre-assembled paper tube kit to pre-fix multiple sets of paper tubes. This allows for direct pushing of the pre-assembled kit to the designated position during paper tube installation on the slitting machine, eliminating the need to move and position multiple sets of paper tubes during equipment downtime and saving downtime.

[0027] This invention uses a rotating arm and a lifting cylinder to open and close one end of the recycling roller, enabling the installation of paper tube pre-assemblies. The output end of the lifting cylinder drives the rotating arm to rotate, and the bottom hinge ensures the driving effect of the rotating arm. A connecting notch plate installed on the rotating arm restricts the end of the recycling roller. When the limit cylinder receives a limit command, its output end pushes the roller against the end of the recycling roller, achieving the effect of rotating together but limiting vertical movement. Attached Figure Description

[0028] Figure 1 This is a three-dimensional structural diagram of a slitting machine in the prior art;

[0029] Figure 2 This is a schematic diagram of the frame structure of the slitting machine of this utility model;

[0030] Figure 3 for Figure 2 Enlarged view of part A;

[0031] Figure 4 This is a top sectional view of the recycling roller, drive component, rotary switch component, paper tube pre-assembly kit, and paper tube of this utility model;

[0032] Figure 5 This is a schematic diagram of the structure of the single-unit position cylinder of this utility model. Figure 1 ;

[0033] Figure 6 This is a schematic diagram of the connecting notch plate of this utility model. Figure 1 ;

[0034] Figure 7 This utility model Figure 4 Enlarged view at point B in the middle;

[0035] Figure 8 This is a schematic diagram of the connecting notch plate of this utility model. Figure 2 ;

[0036] Figure 9 This is a schematic diagram of the structure of the single-unit position cylinder of this utility model. Figure 2 ;

[0037] Figure 10 This is a schematic diagram of the connection between the two sets of position diagrams of this utility model;

[0038] Figure 11 This is a side view of the rotating switch and the recovery roller of the frame of this utility model;

[0039] Figure 12 for Figure 11 Enlarged view of part C.

[0040] In the picture:

[0041] 1. Frame; 11. Reinforcing cylinder; 12. Transmission cylinder; 13. Air passage pipe; 14. Connecting bearing; 15. Pulley one; 16. Hinge seat one; 17. Hinge seat two;

[0042] 2. Recycling roller;

[0043] 3. Drive components; 31. Drive motor; 32. Pulley 2; 33. Transmission belt;

[0044] 4. Rotary switch component; 41. Rotary arm; 42. Fixed shaft; 43. Lifting cylinder; 44. Connecting sleeve; 45. Connecting notch plate; 46. Notch; 47. Limiting electric cylinder; 48. Roller; 49. Ball bearing;

[0045] 5. Paper tube pre-assembly kit; 51. Positioning tube; 511. Cylindrical part one; 512. Ring plate part; 513. Cylindrical part two; 514. Locking bolt; 515. Positioning threaded hole; 516. Positioning blind hole; 517. Small diameter ring;

[0046] 6. Paper tubes. Detailed Implementation

[0047] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0048] Figure 1 This is prior art, specifically the slitting machine previously applied for by the applicant. Conventionally, paper tubes are manually placed on the recovery roller, and the position of each paper tube on the recovery roller is manually moved to ensure the proper winding effect after paper slitting.

[0049] Example 1

[0050] Please see Figure 2-7 This utility model provides a technical solution for a slitting machine recycling roller structure with paper tube pre-assembly, including a frame 1 and a recycling roller 2 located at the bottom of the frame 1. The main body of the recycling roller 2 is an air shaft, and one end is used to drive the drive component 3 to rotate.

[0051] The principle of the air shaft can be referenced from existing technology. High-pressure air inflation causes the key strips or plates on the shaft surface to protrude, thereby locking the rolled tube. After deflating, the component quickly retracts. Here is a brief explanation: By introducing high-pressure gas, the rubber body inside the air shaft expands, causing the fastening component to protrude and extend beyond the surface of the air shaft, thus achieving an outward expansion effect to push and fix the paper tube.

[0052] A reinforcing cylinder 11 is installed at the frame 1 and is sleeved on the recovery roller 2; a rotary switch 4 is installed at the end of the recovery roller 2 away from the reinforcing cylinder 11; a small-diameter shaft is provided at the end of the recovery roller facing the rotary switch to facilitate the connection and restriction of the rotary switch.

[0053] The bottom end of the rotary switch 4 is connected to the frame 1, and the upper end is used to flexibly support the recycling roller 2;

[0054] A paper tube pre-assembly 5 is sleeved on the recycling roller 2. The paper tube pre-assembly 5 includes multiple sleeved position tubes 51. Multiple sets of cylindrical portions 511 are provided on the position tubes 51. The paper tubes 6 correspond one-to-one with the cylindrical portions 511. The paper tubes 6 are adapted to be installed on the cylindrical portions 511, and the adjacent position tubes 51 jointly constrain the position of the paper tubes 6. Constraints are installed between adjacent position tubes 51.

[0055] This invention uses a pre-assembled paper tube kit to pre-fix multiple sets of paper tubes. This allows workers to assemble or pre-install the paper tube kits during the normal automatic cutting and winding of the paper by the slitting machine. Currently, automated slitting machines can already automate the normal cutting function. The operator only needs to control the feeding of raw materials and the installation and unloading of paper tubes.

[0056] like Figure 4 As shown, the frame 1 has an internal cavity, within which a transmission cylinder 12 is installed. An air passage pipe 13, connecting to the recovery roller 2, is connected to the transmission cylinder 12. The air passage pipe 13 can be a high-pressure pipe, through which high-pressure gas is introduced. The high-pressure air passage must realize input and output, which can be achieved through an external air passage circuit, as per existing technology. A connecting bearing 14 is installed at the outer end of the transmission cylinder 12 and connected to the frame 1. A transmission component is fixedly installed on the outside of the transmission cylinder 12, and this transmission component is connected to the drive component 3.

[0057] In this embodiment, the transmission component and the driving component are set separately. The transmission component is pulley 15, and the driving component 3 includes a drive motor 31 and pulley 32. The pulley 15 and pulley 32 are connected by a transmission belt 33. The output shaft of the drive motor 31 drives pulley 32 to rotate. The stable rotation of the recovery roller is achieved by using a traditional pulley drive method. The transmission belt can have V-shaped, trapezoidal, or other toothed shapes.

[0058] like Figure 4 As shown, the gas pipeline and the rubber body inside the recovery roller are fixed together to ensure the input and output of gas; the rotation of the recovery roller is achieved by installing a transmission cylinder, the end of the transmission cylinder is fixedly connected to the recovery roller, and the end of the transmission cylinder is connected to the bearing to achieve synchronous rotation with the drive component and transmission component.

[0059] like Figure 5 As shown, the position cylinder 51 includes an annular plate portion 512, a first cylindrical portion 511, and a second cylindrical portion 513. The first cylindrical portion 511 and the second cylindrical portion 513 are located on both sides of the annular plate portion 512, and the diameter of the first cylindrical portion 511 is smaller than the diameter of the second cylindrical portion 513, and the diameter of the second cylindrical portion 513 is smaller than the diameter of the annular plate portion 512; the width of the paper tube 6 is smaller than the width of the first cylindrical portion 511.

[0060] like Figure 7As shown, the constraint is a locking bolt 514; the outer surface of the cylindrical part 513 is polygonal and has a central circular hole inside; the locking bolt is a common constraint to achieve the effect of being detachable and fixed.

[0061] The second cylindrical part 513 has a positioning threaded hole 515, and the first cylindrical part 511 has a positioning blind hole 516 on the side away from the ring plate part 512; the locking bolt 514 is used to pass through the positioning threaded hole and connect to the positioning blind hole 516 of the adjacent position cylinder 51; multiple sets of position cylinders 51 are connected in sequence through the first cylindrical part 511 and the second cylindrical part 513.

[0062] Assembly of the paper tube pre-assembly kit: First, place all position tubes in the same direction, insert the first and second cylindrical parts of adjacent position tubes and tighten them with locking bolts; then insert and fix the second cylindrical part of the next group with the first cylindrical part of this group, and connect them in sequence.

[0063] like Figure 3 As shown, the rotary switch 4 includes a rotary arm 41. The frame 1 has an installation groove, and a hinge seat 16 and a hinge seat 17 are installed above and below the installation groove, respectively. One end of the rotary arm 41 is rotatably connected to the hinge seat 16, and a fixed shaft 42 is provided on the arm of the rotary arm 41. A lifting cylinder 43 is connected to the hinge seat 17, and a connecting sleeve 44 is installed on the output end of the lifting cylinder 43 and rotatably mounted on the fixed shaft 42.

[0064] The rotating arm 41 is bent and has a stepped opening at the end away from the hinge seat 16; a connecting recess plate 45 is detachably installed at the stepped opening, and the two sides of the connecting recess plate 45 are fixed to the rotating arm 41 by bolts; a recess 46 is opened in the connecting recess plate 45, the recess 46 is arc-shaped, and the recess 46 is engaged at the end of the recovery roller 2 away from the transmission cylinder 12.

[0065] A limit cylinder 47 is detachably installed outside the connecting notch plate 45. The output end of the limit cylinder 47 passes through the connecting notch plate 45 and a roller 48 is installed at the output end. The roller 48 abuts against the surface of the recovery roller 2. When the recovery roller 2 rotates, the roller 48 rolls synchronously with the recovery roller 2.

[0066] This invention uses a rotating arm and a lifting cylinder to open and close one end of the recycling roller, enabling the installation of paper tube pre-assemblies. The output end of the lifting cylinder drives the rotating arm to rotate, and the bottom hinge ensures the driving effect of the rotating arm. A connecting notch plate installed on the rotating arm restricts the end of the recycling roller. When the limit cylinder receives a limit command, its output end pushes the roller against the end of the recycling roller, achieving the effect of rotating together but limiting vertical movement.

[0067] Example 2

[0068] like Figure 8-12 As shown, this is another embodiment of the present invention, based on embodiment 1, as follows: Figure 9 and 10 As shown, a small-diameter ring 517 is provided on the outer side of the second cylindrical part 513. The diameter of the small-diameter ring 517 is not greater than the diameter of the paper tube 6 installed on the first cylindrical part 511. This is to ensure that when the paper tube rotates with the recycling roller, it will not completely restrict the distance between the second cylindrical part and the first cylindrical part of the previous group. This ensures that the paper is only sufficiently wound, but the paper cannot be partially tilted or wrinkled, as this would cause winding errors during recycling, such as the paper being wound onto the second cylindrical part. The small-diameter ring 517 is movably abutted against the side wall of the paper tube 6.

[0069] like Figure 8 and 12 As shown, multiple sets of balls 49 are installed circumferentially inside the recess 46. The balls 49 are built into the recess 46 and rotate. The balls 49 are used to abut the end of the recycling roller 2 to keep the recycling roller 2 rotating, thereby maintaining the rotational stability of the recycling roller.

[0070] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A slitting machine recycling roller structure with paper tube pre-assembly, comprising a frame (1) and a recycling roller (2) located at the bottom of the frame (1), wherein the main body of the recycling roller (2) is an air shaft and one end is used to drive the drive component (3) to rotate; Its features are, A reinforcing cylinder (11) is installed at the frame (1) and is sleeved on the recovery roller (2); a rotary switch (4) is installed at the end of the recovery roller (2) away from the reinforcing cylinder (11); The bottom end of the rotary switch (4) is connected to the frame (1), and the upper end is used to support the recycling roller (2). A paper tube pre-assembly kit (5) is fitted onto the recycling roller (2). The paper tube pre-assembly kit (5) includes multiple fitted position tubes (51). Multiple sets of cylindrical sections (511) are provided on the position tubes (51). The paper tube (6) corresponds one-to-one with the cylindrical section (511). The paper tube (6) is adapted to be installed on the cylindrical section (511), and the adjacent position tubes (51) jointly constrain the position of the paper tube (6). Constraints are installed between adjacent position tubes (51).

2. The slitting machine recycling roller structure with paper tube pre-assembly according to claim 1, characterized in that, The frame (1) has an internal cavity, and a transmission cylinder (12) is installed in the internal cavity. The transmission cylinder (12) is connected to an air passage pipe (13) that connects to the recovery roller (2). A connecting bearing (14) is installed at the outer end of the transmission cylinder (12) and is connected to the frame (1). A transmission component is fixedly installed on the outside of the transmission cylinder (12) and is connected to the drive component (3).

3. The slitting machine recycling roller structure with paper tube pre-assembly according to claim 2, characterized in that, The transmission component is pulley one (15), and the driving component (3) includes a driving motor (31) and pulley two (32). The pulley one (15) and pulley two (32) are connected by a transmission belt (33); the output shaft of the driving motor (31) drives pulley two (32) to rotate.

4. The slitting machine recycling roller structure with paper tube pre-assembly according to claim 3, characterized in that, The position tube (51) includes an annular plate portion (512), a first cylindrical portion (511) and a second cylindrical portion (513). The first cylindrical portion (511) and the second cylindrical portion (513) are located on both sides of the annular plate portion (512), and the diameter of the first cylindrical portion (511) is smaller than the diameter of the second cylindrical portion (513), and the diameter of the second cylindrical portion (513) is smaller than the diameter of the annular plate portion (512). The width of the paper tube (6) is smaller than the width of the first cylindrical portion (511).

5. A slitting machine recycling roller structure with paper tube pre-assembly according to claim 4, characterized in that, The constraint member is a locking bolt (514); the outer surface of the cylindrical part two (513) is polygonal and has a central circular hole inside; The second cylindrical part (513) has a positioning threaded hole (515) inside, and the first cylindrical part (511) has a positioning blind hole (516) on the side away from the ring plate part (512); the locking bolt (514) is used to pass through the positioning threaded hole and connect with the positioning blind hole (516) of the adjacent position cylinder (51). Multiple sets of position cylinders (51) are connected in sequence through cylindrical part one (511) and cylindrical part two (513).

6. A slitting machine recycling roller structure with paper tube pre-assembly according to claim 5, characterized in that, A small diameter ring (517) is provided on the outer side of the second cylindrical part (513). The diameter of the small diameter ring (517) is not greater than the diameter of the paper tube (6) installed on the first cylindrical part (511). The small diameter ring (517) is movably abutted against the side wall of the paper tube (6).

7. A slitting machine recycling roller structure with a paper tube pre-assembly according to claim 6, characterized in that, The rotary switch (4) includes a rotary arm (41), and the frame (1) has an installation groove, with a hinge seat one (16) and a hinge seat two (17) installed above and below the installation groove, respectively. One end of the rotating arm (41) is rotatably connected to the hinge seat (16), and a fixed shaft (42) is provided on the arm of the rotating arm (41). A lifting cylinder (43) is connected to the hinge seat 2 (17), and a connecting sleeve (44) is installed on the output end of the lifting cylinder (43) and is rotatably mounted on the fixed shaft (42).

8. A slitting machine recycling roller structure with a paper tube pre-assembly according to claim 7, characterized in that, The rotating arm (41) is bent and has a stepped opening at the end away from the hinge seat (16); a connecting recess plate (45) is detachably installed at the stepped opening, and the two sides of the connecting recess plate (45) are fixed to the rotating arm (41) by bolts; a recess (46) is opened in the connecting recess plate (45), the recess (46) is arc-shaped, and the recess (46) is engaged at the end of the recovery roller (2) away from the transmission cylinder (12); A limit cylinder (47) is detachably installed outside the connecting notch plate (45). The output end of the limit cylinder (47) passes through the connecting notch plate (45) and a roller (48) is installed at the output end. The roller (48) abuts against the surface of the recycling roller (2). When the recycling roller (2) rotates, the roller (48) rolls synchronously with the recycling roller (2).

9. A slitting machine recycling roller structure with a paper tube pre-assembly according to claim 8, characterized in that, Multiple sets of balls (49) are installed circumferentially inside the recess (46). The balls (49) are built into the recess (46) and rotate. The balls (49) are used to abut the end of the recycling roller (2) to keep the recycling roller (2) rotating.