Multi-layer seamless paper tube extrusion compounding device
By adjusting the distance between the extrusion roller and the winding roller and designing the limiting components, the problem of insufficient paper tube extrusion in the existing technology has been solved, achieving the production of higher quality and more widely applicable paper tubes.
Patent Information
- Application Number
- CN202520679777.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-11
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-04-11
AI Technical Summary
In existing technologies, multiple paper strips are simply compressed and laminated using tensile force, which is not effective enough, resulting in poor paper tube quality and reducing the practicality of the device.
The design employs a combination of adjustment mechanism and extrusion roller. By adjusting the distance between the extrusion roller and the winding roller, and combining it with the rotating wrapping belt for re-extrusion and lamination, the paper tube is ensured to be tightly formed, and the position of the extrusion roller is stabilized by the limiting component.
It improves the quality of paper tubes and the practicality of the device, allowing paper tubes to be compressed more tightly, suitable for paper tubes of more thicknesses, and easier to operate.
Smart Images

Figure CN223972246U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of seamless paper tube technology, specifically to a multi-layer seamless paper tube extrusion composite device. Background Technology
[0002] Seamless paper tubes are tubular materials with no obvious paper seams or joints on their surface. They are an environmentally friendly packaging material. Most seamless paper tubes are made by winding them using a tube-making machine. First, the cut multi-layered paper strips are coated with glue and then neatly wound onto the winding roller of the tube-making machine. Through the rotating winding roller, the multi-layered paper strips can be extruded and laminated to form a paper tube. While winding, the wound paper tube can be transported through a covering belt.
[0003] Most tube-making machines currently use the tension generated by the rotation of the tube winding roller to extrude and laminate multiple layers of paper strips. However, extruding and laminating multiple layers of paper strips by tension alone may not be effective enough, and may result in insufficient compression, which in turn affects the quality of the final paper tube and greatly reduces the practicality of the device. To address this issue, we provide a multi-layer seamless paper tube extrusion and lamination device. Utility Model Content
[0004] The purpose of this invention is to provide a multi-layer seamless paper tube extrusion and lamination device, which solves the problem that in the prior art, the effect of extruding and laminating multiple layers of paper strips by tension alone is likely not good enough, and it is easy to cause insufficient extrusion, thereby affecting the quality of the final paper tube and greatly reducing the practicality of the device.
[0005] This utility model provides the following technical solution: a multi-layer seamless paper tube extrusion composite device, including a tube making machine, a tube winding roller is installed on the upper side of the tube making machine, a paper tube body is wound on the surface of the tube winding roller, and mounting frames are provided on both sides of the paper tube body. Each set of mounting frames has an extrusion roller for extruding the paper tube body rotatably installed inside. The tube making machine is provided with an adjustment mechanism for adjusting the distance between the two sets of extrusion rollers and the tube winding roller on the side near the two sets of extrusion rollers, and a limiting component for reinforcing the adjustment mechanism is provided on one side of the adjustment mechanism.
[0006] With the above technical solution, after the two sets of extrusion rollers are adjusted to the correct positions by the adjustment mechanism, the paper tube body can be extruded and compounded again during the initial winding and forming of the paper tube body by the rotating wrapping belt while the paper tube body is being rotated and transported. This makes the paper tube body more compact and achieves better results, thereby improving the quality of the paper tube body and greatly increasing the practicality of the device.
[0007] As a preferred embodiment of the above technical solution, the adjustment mechanism includes a mounting base, which is installed on one side of the tube making machine. The top of the mounting base has a movable groove, and a bidirectional screw is rotatably installed inside the movable groove. Both sides of the bidirectional screw are threaded with sleeves, and the top of each set of sleeves is connected to a support rod. Each set of mounting brackets is installed at the end of the support rod near the paper tube body.
[0008] The above technical solution allows the extrusion roller to be adjusted according to the thickness of the paper tube to be extruded and laminated, making the device suitable for paper tubes of more thicknesses.
[0009] As a preferred embodiment of the above technical solution, a rotating rod is mounted on one end of the bidirectional screw via a rotating shaft, the limiting component is disposed at the end of the mounting base near the rotating rod, and a handle is mounted on the end of the rotating rod away from the mounting base.
[0010] The above technical solution makes it easier to operate by rotating the handle to drive the rotating rod, which in turn drives the bidirectional screw.
[0011] As a preferred embodiment of the above technical solution, the limiting component includes a limiting sleeve, which is installed on one end of the mounting base near the rotating rod. The rotating rod is rotatably disposed inside the limiting sleeve. A threaded groove is provided at the top of the limiting sleeve, and a fastening screw is threaded into the inside of the threaded groove.
[0012] The above technical solution allows the rotating rod to be limited by friction, thus better restricting the rotation of the bidirectional screw. This better prevents accidental contact with the handle from causing the handle to drive the rotating rod, which in turn drives the bidirectional screw to rotate, resulting in a change in the distance between the adjusted extrusion roller and the coiling roller, affecting the extrusion effect.
[0013] As a preferred embodiment of the above technical solution, a knob is installed at the top of the fastening screw.
[0014] The above technical solution makes it more convenient to operate the fastening screw by turning the knob.
[0015] As a preferred embodiment of the above technical solution, each set of support rods has a slot at one end near the paper tube body, and each set of mounting brackets has a plug connected at one end away from the paper tube body. Each set of plugs is inserted into the slot, and each set of plugs has disassembly and assembly components for disassembling and assembling the extrusion roller on both the upper and lower sides.
[0016] The above technical solution allows for the installation of the extrusion roller by inserting the insert block into the slot and then fixing the insert block in the slot using the disassembly and assembly components. The operation is simple.
[0017] As a preferred embodiment of the above technical solution, each set of disassembly and assembly components includes a slide groove, each set of slide grooves is formed on the surface of the insert block, each set of slide grooves has a spring installed on the inner side, each set of slide grooves has a limit rod slidably installed at the opening, and the inner end of the limit rod is connected to the spring, each set of slots has a limit groove formed on both sides of the inner wall, and each set of limit rods is inserted into the limit groove.
[0018] The above technical solution allows for the disassembly of the extrusion roller, making it easier to maintain or replace it, and greatly increasing the convenience of the device.
[0019] Compared with the prior art, the beneficial effects of this utility model are:
[0020] This invention, by setting an adjustment mechanism in conjunction with the extrusion roller, allows the distance between the extrusion roller and the winding roller to be adjusted according to the required thickness of the paper tube to be extruded and laminated. After the extrusion roller is adjusted, the paper tube body can be extruded and laminated again during the initial winding and forming of the paper tube body, while the rotating wrapping belt drives the paper tube body to rotate and transmit. This makes the paper tube body more compact and achieves better results, thereby improving the quality of the paper tube body. At the same time, by setting a limiting component, the rotating rod can be limited by friction, which better restricts the rotation of the bidirectional screw, thus making the adjustment of the extrusion roller more stable. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of a multi-layer seamless paper tube extrusion composite device;
[0022] Figure 2 This is a partial cross-sectional structural diagram of a multi-layer seamless paper tube extrusion composite device;
[0023] Figure 3 for Figure 2 Enlarged diagram of A in the middle;
[0024] Figure 4 for Figure 2 Enlarged diagram of B in the diagram.
[0025] In the diagram: 1. Tube making machine; 11. Tube winding roller; 12. Paper tube body; 2. Mounting frame; 21. Extrusion roller; 22. Insert block; 3. Adjustment mechanism; 31. Mounting base; 32. Movable groove; 33. Bidirectional screw; 34. Screw sleeve; 35. Support rod; 36. Slot; 37. Rotating rod; 38. Handle; 4. Limiting assembly; 41. Limiting sleeve; 42. Threaded groove; 43. Fastening screw; 44. Knob; 5. Disassembly and assembly assembly; 51. Slide groove; 52. Spring; 53. Limiting rod; 54. Limiting groove. Detailed Implementation
[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0027] like Figures 1-4 As shown, this utility model provides a technical solution: a multi-layer seamless paper tube extrusion composite device, including a tube-making machine 1. A winding roller 11 is installed on the upper side of the tube-making machine 1. A paper tube body 12 is wound around the surface of the winding roller 11. Mounting frames 2 are provided on both sides of the paper tube body 12. An extrusion roller 21 for extruding the paper tube body 12 is rotatably installed inside each set of mounting frames 2. An adjustment mechanism 3 for adjusting the distance between the two sets of extrusion rollers 21 and the winding roller 11 is provided on one side of the tube-making machine 1 near the two sets of extrusion rollers 21. A useful adjustment mechanism is provided on one side of the adjustment mechanism 3. The limiting component 4 is adjusted by the reinforcing adjustment mechanism 3. The adjustment mechanism 3 includes a mounting base 31, which is installed on one side of the tube making machine 1. The top of the mounting base 31 has a movable groove 32. A bidirectional screw 33 is rotatably installed inside the movable groove 32. Both sides of the bidirectional screw 33 are threaded with screw sleeves 34. The top of each set of screw sleeves 34 is connected to a support rod 35. Each set of mounting brackets 2 is installed at the end of the support rod 35 near the paper tube body 12. This structure is achieved by rotating the bidirectional screw 33, which, through the threaded rotation, drives the two sets of screw sleeves 34 in the movable groove 3. 2. Internal sliding: Two sets of screw sleeves 34 drive two sets of support rods 35 to move, so that the two sets of support rods 35 simultaneously drive the two sets of mounting frames 2. The two sets of mounting frames 2 drive the two sets of extrusion rollers 21 to move towards the winding roller 11. In this way, the thickness of the paper tube to be extruded and compounded can be adjusted according to the required thickness, so that the device can be used for paper tubes of more thicknesses, until it moves to abut against the paper tube body 12 and extrudes the paper tube body 12. In this way, when the paper tube body 12 is initially wound and formed, the rotating wrapping belt drives the paper tube body 12 to rotate and be transported at the same time. The paper tube body 12 is further extruded and laminated, making it more compact and effective, thereby improving its quality and greatly increasing the practicality of the device. One end of the bidirectional screw 33 is equipped with a rotating rod 37 via a rotating shaft. The limiting component 4 is located at the end of the mounting base 31 near the rotating rod 37. A handle 38 is installed at the end of the rotating rod 37 away from the mounting base 31. This structure allows the rotating rod 37 to be driven by rotating the handle 38, which in turn drives the bidirectional screw 33 to rotate, making operation more convenient.
[0028] It should be noted that the tube making machine 1 is existing technology and contains a structure that can drive the tube winding roller 11 to rotate, so it is not described in detail.
[0029] As one implementation method in this embodiment, such as Figure 3As shown, the limiting component 4 includes a limiting sleeve 41, which is installed on the end of the mounting base 31 near the rotating rod 37. The rotating rod 37 is rotatably disposed inside the limiting sleeve 41. A threaded groove 42 is provided at the top of the limiting sleeve 41, and a fastening screw 43 is threadedly inserted into the threaded groove 42. This structure allows the fastening screw 43 to rotate within the limiting sleeve 41. Through the threaded rotation, the fastening screw 43 moves downward until it abuts against the rotating rod 37. This allows the rotating rod 37 to be limited by friction, better restricting the rotation of the bidirectional screw 33. This better prevents accidental contact with the handle 38, which would cause the handle 38 to drive the rotating rod 37, and the rotating rod 37 to drive the bidirectional screw 33 to rotate, causing a change in the distance between the adjusted extrusion roller 21 and the coiling roller 11, affecting the extrusion effect. A knob 44 is installed at the top of the fastening screw 43, making it more convenient to operate the fastening screw 43 by turning the knob 44.
[0030] As one implementation method in this embodiment, such as Figure 4 As shown, each set of support rods 35 has a slot 36 at one end near the paper tube body 12, and each set of mounting brackets 2 has an insert block 22 connected to the end away from the paper tube body 12. Each set of insert blocks 22 is inserted into the slot 36. Each set of insert blocks 22 has disassembly and assembly components 5 on its upper and lower sides for disassembling and assembling the squeeze roller 21. This allows the installation of the squeeze roller 21 to be completed by inserting the insert block 22 into the slot 36 and then fixing the insert block 22 in the slot 36 by the disassembly and assembly components 5. The operation is simple. Each set of disassembly and assembly components 5 includes a sliding groove 51, and each set of sliding grooves 51 is formed on the surface of the insert block 22. Each set of slide grooves 51 has a spring 52 installed on its inner side, and a limit rod 53 is slidably installed at the opening of each set of slide grooves 51. The inner end of the limit rod 53 is connected to the spring 52. Each set of slots 36 has a limit groove 54 on both sides of its inner wall. Each set of limit rods 53 is inserted into the limit groove 54. This structure allows the two sets of limit rods 53 to be pressed from the limit groove 54 into the slide groove 51 to compress the spring 52. This allows the mounting bracket 2 to be pulled to pull the insert block 22 out of the slot 36, thereby completing the disassembly of the extrusion roller 21. This makes it easier to maintain or replace the extrusion roller 21.
[0031] Working principle: To make paper tubes, simply apply glue, place the paper strips and wrap them around the winding roller 11, and start the tube-making machine 1 to rotate the winding roller 11. This will rotate and compress the multiple layers of paper strips into the paper tube body 12. If further compression and lamination of the paper tube body 12 is required, simply turn the handle 38 to drive the rotating rod 37. The rotating rod 37 drives the bidirectional screw 33 to rotate. Through the screw rotation, the two sets of screw sleeves 34 slide inside the movable groove 32. The two sets of screw sleeves 34 move the two sets of support rods 35, which in turn move the two sets of mounting frames 2. The two sets of mounting frames 2 move the two sets of extrusion rollers 21 towards the winding roller 11. This allows adjustment according to the thickness of the paper tube to be extruded and laminated, enabling the device to accommodate paper tubes of various thicknesses. The compression continues until the paper tube body 12 is pressed against it. During the initial winding of the paper tube body 12, the rotating wrapping belt drives the paper tube body 12 to rotate and transmit simultaneously, allowing for a second compression and compounding process. This results in a tighter compression of the paper tube body 12, improving its quality and significantly enhancing the practicality of the device. Finally, the knob 44 can be rotated to drive the fastening screw 43 to rotate within the limiting sleeve 41. Through the screw rotation, the fastening screw 43 moves downward until it abuts against the rotating rod 37. This frictional force limits the rotation of the rotating rod 37, better restricting the rotation of the bidirectional screw 33. This prevents accidental contact with the handle 38, which could cause the handle 38 to drive the rotating rod 37, which in turn drives the bidirectional screw 33 to rotate, thus altering the distance between the adjusted extrusion roller 21 and the winding roller 11 and affecting the extrusion effect.
[0032] In addition, if it is necessary to disassemble the extrusion roller 21, simply press the two sets of limit rods 53, press the limit rods 53 from the limit groove 54 to the slide groove 51 to compress the spring 52, and then pull the mounting bracket 2 to drive the insert block 22 out of the slot 36, thereby completing the disassembly of the extrusion roller 21. This makes it more convenient to maintain or replace the extrusion roller 21.
[0033] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.
Claims
1. A multi-layer seamless paper tube extrusion composite device comprising a tube making machine (1), a tube winding roller (11) is installed on the upper side of the tube making machine (1), and a paper tube body (12) is wound on the surface of the tube winding roller (11), characterized in that: Both sides of the paper tube body (12) are provided with mounting racks (2), the inside of each group of mounting racks (2) is rotatably provided with an extrusion roller (21) for extruding the paper tube body (12), and the side of the pipe making machine (1) close to the two groups of extrusion rollers (21) is provided with an adjusting mechanism (3) for adjusting the distance between the two groups of extrusion rollers (21) and the pipe winding roller (11), and one side of the adjusting mechanism (3) is provided with a limiting assembly (4) for reinforcing the adjustment of the adjusting mechanism (3).
2. A multi-layer seamless paper tube extrusion lamination apparatus according to claim 1, characterized in that: The adjusting mechanism (3) comprises a mounting seat (31), the mounting seat (31) is installed on one side of the pipe making machine (1), the top end of the mounting seat (31) is provided with a movable slot (32), the inside of the movable slot (32) is rotatably provided with a bidirectional screw rod (33), the two sides of the bidirectional screw rod (33) are threadedly provided with a screw sleeve (34), and the top end of each group of screw sleeves (34) is connected with a supporting rod (35). Each group of mounting racks (2) is installed on one end of the supporting rod (35) close to the paper tube body (12).
3. A multi-layer seamless paper tube extrusion lamination apparatus according to claim 2, wherein: One end of the bidirectional screw rod (33) is rotatably provided with a rotating rod (37) through a rotating shaft, the limiting assembly (4) is arranged at one end of the mounting seat (31) close to the rotating rod (37), and the end of the rotating rod (37) away from the mounting seat (31) is provided with a handle (38).
4. A multi-layer seamless paper tube extrusion lamination apparatus according to claim 3, wherein: The limiting assembly (4) comprises a limiting sleeve (41), the limiting sleeve (41) is installed at one end of the mounting seat (31) close to the rotating rod (37), the rotating rod (37) is rotatably arranged in the limiting sleeve (41), the top end of the limiting sleeve (41) is provided with a threaded groove (42), and the threaded groove (42) is threadedly provided with a fastening screw rod (43).
5. A multi-layer seamless paper tube extrusion lamination apparatus according to claim 4, wherein: The top end of the fastening screw rod (43) is provided with a knob (44).
6. A multi-layer seamless paper tube extrusion lamination apparatus according to claim 2, wherein: The end of each group of supporting rods (35) close to the paper tube body (12) is provided with a slot (36), the end of each group of mounting racks (2) away from the paper tube body (12) is connected with a plug (22), each group of plugs (22) is inserted into the slot (36), and the upper and lower sides of each group of plugs (22) are provided with a dismounting assembly (5) for dismounting the extrusion roller (21).
7. A multi-layer seamless paper tube extrusion lamination apparatus according to claim 6, wherein: Each group of dismounting assemblies (5) comprises a sliding groove (51), each group of sliding grooves (51) is arranged on the surface of the plug (22), the inner side of each group of sliding grooves (51) is provided with a spring (52), the opening of each group of sliding grooves (51) is slidably provided with a limiting rod (53), the inner end of the limiting rod (53) is connected with the spring (52), and the inner wall of each group of slots (36) is provided with a limiting groove (54), and each group of limiting rods (53) is inserted into the limiting groove (54).