Paper tube straightness shaping machine

By using a rotating shaft and abutment mechanism in the paper tube straightening machine, centrifugal force and extrusion force are used to improve the straightness and strength of the paper tube, solving the problem of easy deformation of the paper tube and achieving a highly efficient paper tube straightening effect.

CN223972247UActive Publication Date: 2026-03-06HENAN KEDE PAPER IND & TRADE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-03
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

Existing paper tube straightening equipment is prone to paper tube deformation, resulting in poor straightening effect and low structural strength of the paper tube.

Method used

Design a paper tube straightening machine that uses a rotating shaft and a contacting mechanism. The rotating shaft drives the paper tube to rotate, and centrifugal force is used to make the clamping arc plate evenly contact the inner wall of the paper tube. Combined with the contacting mechanism, the outer wall of the paper tube is squeezed to ensure the straightness and strength of the paper tube.

Benefits of technology

It improves the straightness and structural strength of the paper tube, reduces the probability of deformation during the shaping process, and enhances the shaping effect.

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Abstract

The utility model relates to a paper tube straightness shaping machine, and relates to the field of paper tube production and processing equipment, the paper tube straightness shaping machine comprises a machine body, a rotating shaft and an abutting mechanism, the rotating shaft comprises a mounting cylinder, a plurality of clamping arc plates and a plurality of connecting blocks, the mounting cylinder is vertically arranged and rotatably connected to the machine body, and the connecting blocks are slidably connected to the mounting cylinder; the sliding direction of the connecting block points to the circle center of the mounting cylinder, the clamping arc plate is fixed to the connecting block and used for abutting against the inner wall of the paper tube, and the abutting mechanism is used for abutting against the outer wall of the paper tube. The paper tube shaping device has the effect of reducing the paper tube deformation probability during paper tube shaping.
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Description

Technical Field

[0001] This application relates to the field of paper tube production and processing equipment, and in particular to a paper tube straightening machine. Background Technology

[0002] Paper tubes are a widely used industrial product. By winding threads around paper tubes, they can be conveniently used to store and utilize linear products such as fibers. When the paper tube is poorly manufactured, resulting in unevenness or low straightness, the threads will experience inconsistent stress when the paper tube is rotated and unloaded on textile machinery, which can easily lead to thread breakage.

[0003] Existing paper tube straightness shaping is achieved by rolling the paper tube. By fixing the paper tube on the main shaft of the machine, the main shaft drives the paper tube to rotate, which in turn causes the paper tube to come into contact with the rollers, allowing the rollers to roll and press the paper tube, resulting in a higher degree of straightness.

[0004] The aforementioned technical solutions have the following drawbacks: the paper tube structure has low strength, and fixing the paper tube to the machine requires clamping the paper tube, which makes the paper tube easy to deform and results in poor shaping effect. Utility Model Content

[0005] To reduce the likelihood of paper tube deformation during paper tube shaping, this application provides a paper tube straightness shaping machine.

[0006] The paper tube straightening machine provided in this application adopts the following technical solution:

[0007] A paper tube straightening machine includes a machine body, a rotating shaft, and an abutting mechanism. The rotating shaft includes an mounting cylinder, multiple snap-fit ​​arc plates, and multiple connecting blocks. The mounting cylinder is vertically arranged and rotatably connected to the machine body. The connecting blocks are slidably connected to the mounting cylinder, and the sliding direction of the connecting blocks points to the center of the mounting cylinder. The snap-fit ​​arc plates are fixed to the connecting blocks and are used to abut against the inner wall of the paper tube. The abutting mechanism is used to abut against the outer wall of the paper tube.

[0008] By adopting the above technical solution, a rotating shaft is set on the machine body, which enables the drive mechanism to drive the rotating shaft to rotate. When the user puts the paper tube on the rotating shaft, the rotating shaft can drive the paper tube to rotate. When the rotating shaft rotates, the connecting block slides relative to the mounting cylinder under the action of centrifugal force, so that the snap-fit ​​arc plate can abut against the inner wall of the paper tube. When the rotating shaft rotates, the multiple snap-fit ​​arc plates are subjected to centrifugal force evenly, which can snap the paper tube into a position coaxial with the mounting cylinder. At this time, the abutting mechanism abuts against the outer wall of the paper tube, which can squeeze the paper tube and make the paper tube have a high straightness. After the paper tube is installed on the rotating shaft, the multiple snap-fit ​​arc plates provide support for the inner wall of the paper tube, which can reduce the probability of paper tube deformation during paper tube shaping.

[0009] Optionally, multiple connecting blocks and snap-fit ​​arc plates are arranged at equal intervals along the circumference of the mounting cylinder.

[0010] By adopting the above technical solution and setting the connecting blocks at equal intervals, when the paper tube is sleeved on the rotating shaft and the rotating shaft rotates, the connecting blocks slide on the mounting cylinder, and multiple snap-fit ​​arc plates evenly abut against the inside of the paper tube, thereby making the paper tube evenly stressed and reducing the probability of paper tube deformation.

[0011] Optionally, the connecting block is provided with a contraction spring, which is disposed inside the mounting cylinder, with its two ends abutting against the two connecting blocks respectively.

[0012] By adopting the above technical solution, and by setting a shrinking spring on the connecting block, when the rotating shaft rotates, the connecting block can pull the shrinking spring and slide. When the rotating shaft stops rotating, the shrinking spring automatically shrinks. At this time, the connecting block can slide towards the axis of the rotating shaft, thereby disengaging the snap-fit ​​arc plate from the inner wall of the paper tube.

[0013] Optionally, the surface of the snap-fit ​​arc plate is provided with a rubber layer, which is made of rubber with a rough surface and elasticity.

[0014] By adopting the above technical solution, a rubber layer is set on the surface of the snap-fit ​​arc plate, so that the rubber layer abuts against the inner wall of the paper tube, thereby increasing the friction between the snap-fit ​​arc plate and the paper tube and reducing the probability of the paper tube rotating on the mounting cylinder.

[0015] Optionally, the plurality of abutment mechanisms are arranged at equal intervals along the circumferential direction of the rotating shaft.

[0016] By adopting the above technical solution, multiple abutting mechanisms are set outside the rotating shaft, and the abutting mechanisms are arranged around the rotating shaft. When the abutting mechanism abuts against the paper tube, the paper tube is subjected to uniform pressure, thereby making the force on the paper tube uniform.

[0017] Optionally, the abutting mechanism includes a mounting frame, a movable frame, and a roller. The mounting frame is fixedly connected to the machine body, the movable frame is slidably connected to the mounting frame, and the roller is rotatably connected to the movable frame. The length direction of the roller is parallel to the length direction of the rotating shaft.

[0018] By adopting the above technical solution, a movable frame is slidably set on the mounting frame, and the roller is rotated and connected to the movable frame. By controlling the movement of the movable frame, the user can make the roller abut against the outer wall of the paper tube, thereby achieving the effect of shaping the paper tube.

[0019] Optionally, the movable frame is provided with multiple guide rods, one end of which is fixed to the movable frame, and the other end passes through the mounting frame and is slidably connected to the mounting frame. The length direction of the guide rod points towards the axis of rotation.

[0020] By adopting the above technical solution, and by setting guide rods on the movable frame so that the guide rods pass through the mounting frame, the guide rods play a guiding role, which can reduce the probability of the movable frame tilting on the mounting frame and ensure that the length direction of the rollers is always parallel to the length direction of the rotating shaft.

[0021] Optionally, the mounting bracket is provided with a screw, which passes through the mounting bracket and is threadedly connected to the mounting bracket. The end of the screw is rotatably connected to the movable bracket, and the length direction of the screw is parallel to the length direction of the guide rod.

[0022] By adopting the above technical solution, a screw is installed on the mounting frame, and the screw passes through the mounting frame. By rotating the screw, the user can make the movable frame slide back and forth on the mounting frame, thereby enabling the roller to move.

[0023] In summary, the beneficial technical effects of this application are as follows:

[0024] 1. By setting a rotating shaft on the machine body, the drive mechanism can drive the rotating shaft to rotate. When the user puts the paper tube on the rotating shaft, the rotating shaft can drive the paper tube to rotate. When the rotating shaft rotates, the connecting block slides relative to the mounting cylinder under the action of centrifugal force, so that the snap-fit ​​arc plate can abut against the inner wall of the paper tube. When the rotating shaft rotates, the multiple snap-fit ​​arc plates are subjected to centrifugal force evenly, so that the paper tube can be snapped in a position coaxial with the mounting cylinder. At this time, the abutting mechanism abuts against the outer wall of the paper tube, which can squeeze the paper tube and make the paper tube have a high straightness. After the paper tube is installed on the rotating shaft, the multiple snap-fit ​​arc plates provide support for the inner wall of the paper tube, which can reduce the probability of paper tube deformation during paper tube shaping.

[0025] 2. By setting a shrink spring on the connecting block, when the shaft rotates, the connecting block can pull the shrink spring and slide. When the shaft stops rotating, the shrink spring automatically shrinks. At this time, the connecting block can slide towards the shaft center, thereby disengaging the snap-fit ​​arc plate from the inner wall of the paper tube.

[0026] 3. By sliding a movable frame on the mounting frame, the roller is connected to the movable frame and rotates. The user can control the movement of the movable frame to make the roller abut against the outer wall of the paper tube, thereby achieving the effect of shaping the paper tube. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0028] Figure 2 This is a schematic diagram of the structure of the rotating shaft according to an embodiment of this application.

[0029] Figure 3 This is a schematic diagram showing the position of the retraction spring in an embodiment of this application.

[0030] Figure 4This is a schematic diagram of the abutment mechanism according to an embodiment of this application.

[0031] Reference numerals in the attached drawings: 1. Machine body; 2. Rotating shaft; 21. Mounting cylinder; 22. Snap-fit ​​arc plate; 23. Connecting block; 24. Retraction spring; 3. Abutment mechanism; 31. Mounting frame; 32. Movable frame; 33. Roller; 34. Screw; 35. Guide rod. Detailed Implementation

[0032] The present application will be further described in detail below with reference to the accompanying drawings.

[0033] This application discloses a paper tube straightening machine, referring to... Figure 1 The machine includes a body 1, a rotating shaft 2, and a contact mechanism 3. The rotating shaft 2 is rotatably connected to the body 1 and is vertically arranged. The contact mechanism 3 is arranged on the body 1. The paper tube can be sleeved on the rotating shaft 2. The rotating shaft 2 drives the paper roll to rotate. The contact mechanism 3 is used to abut against the outer wall of the paper tube, thereby squeezing the paper tube and making the straightness of the outer wall of the paper tube higher, resulting in better production quality.

[0034] Reference Figure 2 and Figure 3 The rotating shaft 2 includes a mounting cylinder 21, multiple snap-fit ​​arc plates 22, and multiple connecting blocks 23. The mounting cylinder 21 is a cylindrical structure, vertically mounted on the machine body 1, and its lower end is connected to the drive mechanism, allowing it to rotate on the machine body 1. Multiple connecting blocks 23 are equidistantly spaced along the circumference of the mounting cylinder 21, passing through it and slidably connected to it. The snap-fit ​​arc plates 22 are fixed to the connecting blocks 23 and are located outside the mounting cylinder 21. When the paper tube is fitted onto the rotating shaft 2, the snap-fit ​​arc plates 22 on the multiple connecting blocks 23 abut against the inner wall of the paper tube. In its natural state, the connecting block 23 can slide on the mounting cylinder 21. At this time, the user can put the paper tube on the rotating shaft 2. When the rotating shaft 2 rotates, the connecting block 23 and the snap-fit ​​arc plate 22 can slide relative to the mounting cylinder 21 under the action of centrifugal force, so that the snap-fit ​​arc plate 22 can abut against the inner wall of the paper tube, so that the paper tube is coaxially connected to the rotating shaft 2.

[0035] Reference Figure 3In this embodiment, four connecting blocks 23 are provided, equidistantly spaced along the circumference of the mounting cylinder 21. A contraction spring 24 is positioned between two opposing connecting blocks 23, with each end of the spring connected to one of the two connecting blocks 23. When the rotating shaft 2 stops rotating, the contraction spring 24 pulls the two connecting blocks 23, thereby disengaging the locking arc plate 22 from the paper tube, facilitating the removal of the paper tube from the rotating shaft 2. The surface of the locking arc plate 22 is covered with a rubber layer made of elastic and rough-surfaced rubber. When the locking arc plate 22 abuts against the inner wall of the paper tube, the friction between the locking arc plate 22 and the inner wall of the paper tube is relatively large, resulting in better connection stability.

[0036] Reference Figure 4 Multiple abutting mechanisms 3 are provided, and these mechanisms are equidistantly spaced along the circumference of the mounting cylinder 21. Each abutting mechanism 3 includes a mounting frame 31, a movable frame 32, and a roller 33. The mounting frame 31 is vertically fixed to the machine body 1, and the movable frame 32 is slidably connected to the mounting frame 31. The sliding direction of the movable frame 32 relative to the mounting frame 31 points towards the center of the rotating shaft 2. The roller 33 is rotatably connected to the movable frame 32, and its length direction is parallel to the rotating shaft 2. The roller 33 is used to abut against the outer wall of the paper tube and roll the paper tube, thereby achieving a high degree of flatness on the surface of the paper tube.

[0037] Reference Figure 4 The movable frame 32 is provided with multiple guide rods 35. One end of each guide rod 35 is fixed to the side of the movable frame 32 away from the roller 33. The guide rod 35 passes through the mounting frame 31 and is slidably connected to the mounting frame 31. A screw 34 is provided on the movable frame 32. The screw 34 passes through the mounting frame 31 and is threadedly connected to the mounting frame 31. The end of the screw 34 is rotatably connected to the movable frame 32. The length direction of the screw 34 is parallel to the length direction of the guide rods 35, and the length directions of the screw 34 and the guide rods 35 point towards the axis of the rotating shaft 2. By turning the screw 34, the user can move the screw 34 on the mounting frame 31, thereby controlling the sliding of the movable frame 32 on the mounting frame 31.

[0038] The implementation principle of this application embodiment is as follows: By setting a rotating shaft 2 on the machine body 1 and setting the rotating shaft 2 vertically, the user can make the rotating shaft 2 drive the paper tube to rotate by putting the paper tube on the rotating shaft 2, so that the outer wall of the paper tube abuts against the roller 33, and the roller 33 can flatten the surface of the paper tube. By setting a snap-fit ​​arc plate 22 on the mounting cylinder 21, the snap-fit ​​arc plate 22 can automatically abut against the inner wall of the paper tube when the mounting cylinder 21 rotates, so that the paper tube is evenly supported, and the paper tube can be coaxially connected with the rotating shaft 2. The paper tube is evenly stressed, and the probability of deformation of the inner wall of the paper tube is small.

[0039] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A paper tube straightness shaper characterized by: The utility model provides a paper tube cutting device, including body (1), pivot (2) and abutment mechanism (3), pivot (2) includes installation cylinder (21), a plurality of clamping arc plate (22) and a plurality of connecting block (23), installation cylinder (21) is vertically arranged and is rotatably connected on body (1), connecting block (23) is slidably connected on installation cylinder (21), the sliding direction of connecting block (23) points to the center of installation cylinder (21), clamping arc plate (22) is fixed on connecting block (23), and clamping arc plate (22) is used to abut on the inner wall of paper tube, and abutment mechanism (3) is used to abut on the outer wall of paper tube.

2. A paper tube straightness shaper according to claim 1, characterized in that: A plurality of connecting blocks (23) and clamping arc plates (22) are equidistantly arranged along the circumference of the installation cylinder (21).

3. A paper tube straightness shaper according to claim 2, characterized in that: A contraction spring (24) is arranged on the connecting block (23) and arranged in the installation cylinder (21), and the two ends of the contraction spring (24) are respectively abutted against two connecting blocks (23).

4. A paper tube straightness shaper according to claim 1, characterized in that: A rubber layer is arranged on the surface of the clamping arc plate (22), and the rubber layer is made of rubber with rough surface and elasticity.

5. A paper tube straightness shaper according to claim 1, characterized in that: A plurality of abutment mechanisms (3) are equidistantly arranged along the circumferential direction of the pivot (2).

6. A paper tube straightness shaper according to claim 5, characterized in that: The abutment mechanism (3) comprises a mounting frame (31), a movable frame (32) and a roller (33), the mounting frame (31) is fixedly connected to the body (1), the movable frame (32) is slidably connected to the mounting frame (31), and the roller (33) is rotatably connected to the movable frame (32), and the length direction of the roller (33) is parallel to the length direction of the pivot (2).

7. A paper tube straightness shaper according to claim 6, characterized in that: A plurality of guide rods (35) are arranged on the movable frame (32), one end of the guide rod (35) is fixed to the movable frame (32), the other end penetrates through the mounting frame (31) and is slidably connected to the mounting frame (31), and the length direction of the guide rod (35) points to the shaft center of the pivot (2).

8. A paper tube straightness shaper according to claim 7, characterized in that: A screw rod (34) is arranged on the mounting frame (31), the screw rod (34) penetrates through the mounting frame (31) and is threadedly connected to the mounting frame (31), the end of the screw rod (34) is rotatably connected to the movable frame (32), and the length direction of the screw rod (34) is parallel to the length direction of the guide rod (35).