High-precision cutting device for DTY paper tube

By supporting the DTY paper tube with internal support columns and cutting grooves, and adjusting the cutter position with a servo motor and rocker wheel, the problem of collapse and deformation during DTY paper tube cutting is solved, achieving high-precision cutting.

CN224347919UActive Publication Date: 2026-06-12HENAN KEDE PAPER IND & TRADE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN KEDE PAPER IND & TRADE CO LTD
Filing Date
2025-06-30
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

DTY paper tubes are prone to collapse and deformation due to pressure from the cutting tool during cutting, which affects dimensional accuracy.

Method used

The paper tube is internally supported by an internal support column and a cutting groove structure. Combined with a servo motor driving a lead screw and a rocker wheel to adjust the position of the cutter, precision cutting is achieved.

Benefits of technology

To ensure the paper tube does not collapse during the cutting process, maintain stability and high cylindricity, and improve cutting accuracy to adapt to paper tubes of different diameters.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application discloses a high-precision cutting device for DTY paper tubes, belonging to the field of paper tube cutting. It includes a base plate, a positioning plate fixedly installed on the top of the base plate, a fixing frame installed on the outer wall of the positioning plate, a rotary motor fixedly installed on the outer side of the fixing frame, an inner support column fixedly connected to the power output shaft of the rotary motor, a fixing frame fixedly installed on the top of the base plate, a guide strip fixedly installed on the inner bottom of the fixing frame, a servo motor fixedly installed on the outer side of the fixing frame, a lead screw fixedly connected to the power output shaft of the servo motor, and a slider threadedly connected to the outer edge of the lead screw. By setting the inner support column and the cutting groove, the inner support column can form internal support for the DTY paper tube, ensuring that the DTY paper tube, when cut and fitted onto the outside of the inner support column, will not collapse or deform inward due to the squeezing force of the cutter, thus ensuring the stability of the DTY paper tube and maintaining a high cylindricity.
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Description

Technical Field

[0001] This application relates to the field of paper tube cutting technology, and in particular to a high-precision DTY paper tube cutting device. Background Technology

[0002] DTY stands for low-elastic polyester yarn. Chemical fiber paper tubes refer to paper tubes used for winding chemical fibers, spinning, texturing, etc. In the production process of chemical fiber paper tubes, it is necessary to cut the formed paper tubes so that the length of the cut paper tubes meets the requirements.

[0003] Existing DTY paper tubes are prone to compression by cutting tools during cutting, which can cause the DTY paper tubes to collapse inward and deform, thus reducing the dimensional accuracy of the paper tubes. Therefore, this application proposes a high-precision cutting device for DTY paper tubes. Utility Model Content

[0004] In view of the shortcomings of the prior art, this utility model provides a high-precision cutting device for DTY paper tubes, which overcomes the shortcomings of the prior art and aims to solve the problems in the background art.

[0005] To achieve the above objectives, this application adopts the following technical solution: a high-precision cutting device for DTY paper tubes, comprising a base plate, a positioning plate fixedly installed on the top of the base plate, a fixing frame installed on the outer wall of the positioning plate, a rotary motor fixedly installed on the outer side of the fixing frame, an inner support column fixedly connected to the power output shaft of the rotary motor, a fixing frame fixedly installed on the top of the base plate, a guide strip fixedly installed on the inner bottom of the fixing frame, a servo motor fixedly installed on the outer side of the fixing frame, a lead screw fixedly connected to the power output shaft of the servo motor, a slider threadedly connected to the outer edge of the lead screw, a movable frame fixedly installed on the top of the slider, a rotating plate rotatably connected to the inner wall of the movable frame, a cutter fixedly installed on the inner wall of the rotating plate, and an adjustment mechanism installed on the inner wall of the movable frame.

[0006] In a preferred embodiment, four foot pads are symmetrically fixedly installed on the bottom of the base plate, a protective cover is installed on the top of the base plate, one side of the protective cover is connected to the positioning plate, and the fixing frame and the rotary motor are arranged inside the protective cover.

[0007] By adopting the above technical solution, the device can be placed stably on the ground, ensuring that it will not easily shake during operation. Furthermore, the protective cover can protect the fixed frame and the rotating motor, ensuring that the fixed frame and the rotating motor are not directly exposed.

[0008] In a preferred embodiment, the adjusting mechanism includes a nut, which is fixedly installed on the inner wall of the movable frame. A threaded rod is threadedly connected to the inner wall of the nut, and a rocker wheel is fixedly installed on the outer edge of the threaded rod. The end of the threaded rod away from the rocker wheel is rotatably connected to the rotating plate.

[0009] By adopting the above technical solution, the rotatable rocker wheel drives the threaded rod to rotate, thereby adjusting the tilt of the rotating plate and further adjusting the position of the cutter, which is used to cut DTY paper tubes of different diameters.

[0010] In one preferred embodiment, the outer wall of the fixed frame is fixedly equipped with scale lines, and the outer wall of the slider is equipped with positioning lines.

[0011] By adopting the above technical solution, the accuracy of the position of the moving cutter can be easily improved, further ensuring the accuracy of DTY paper tube cutting.

[0012] In a preferred embodiment, the bottom of the slider is slidably connected to the outside of the guide bar, and the slider is adapted to be slidably connected to the inside of the fixed frame. This ensures the stability of the slider when it is moving, and ensures that it moves stably in a straight line without easily shifting its position, thus further ensuring stability.

[0013] In a preferred embodiment, a limiting hole is provided on the inner wall of the fixed frame, and the end of the lead screw away from the servo motor is rotatably connected to the inner wall of the limiting hole.

[0014] By adopting the above technical solution, the lead screw can be used to limit its rotation, ensuring its stability during rotation and preventing it from easily swaying.

[0015] In a preferred embodiment, the outer edge of the inner support column is provided with multiple cutting grooves.

[0016] By adopting the above technical solution, the DTY paper tube that needs to be cut can be fitted onto the outer edge of the inner support column, so that the inner support column can form internal support for the DTY paper tube, and the cutter can ensure the thoroughness of the cut to the inner wall of the cutting groove.

[0017] The beneficial effects of this application are:

[0018] This high-precision cutting equipment for DTY paper tubes uses an inner support column and a cutting groove. The inner support column provides internal support for the DTY paper tube, ensuring that the DTY paper tube will not collapse or deform inward due to the squeezing force of the cutter when it is cut. This ensures the stability of the DTY paper tube and maintains a high degree of cylindricity.

[0019] This high-precision DTY paper tube cutting equipment uses a servo motor to drive a lead screw to rotate, which in turn moves a slider to slide on the inner wall of a fixed frame. The position of the cutter is adjusted to control the cutting length. Rotating a rocker wheel drives a threaded rod to rotate, which in turn adjusts the tilt of the rotating plate and further adjusts the position of the cutter until one side of the cutter's blade is in contact with the outside of the DTY paper tube, facilitating the cutting of DTY paper tubes of different diameters. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this application;

[0021] Figure 2 This is a schematic diagram of the cross-sectional structure of the protective cover in this application;

[0022] Figure 3 This is a schematic diagram of the cross-sectional structure of the fixed frame in this application;

[0023] Figure 4 This is a side view structural diagram of this application.

[0024] The following are the labels in the diagram: 1. Base plate; 2. Foot pad; 3. Positioning plate; 4. Fixing frame; 5. Rotary motor; 6. Protective cover; 7. Fixing frame; 8. Guide bar; 9. Servo motor; 10. Lead screw; 11. Slider; 12. Moving frame; 13. Nut; 14. Threaded rod; 15. Rotating plate; 16. Cutter; 17. Rocker wheel; 18. Scale line; 19. Inner support column; 20. Cutting groove. Detailed Implementation

[0025] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0026] Reference Figure 1-4 A high-precision cutting device for DTY paper tubes includes a base plate 1, a positioning plate 3 fixedly installed on the top of the base plate 1, a fixing frame 4 installed on the outer wall of the positioning plate 3, a rotary motor 5 fixedly installed on the outer side of the fixing frame 4, an inner support column 19 fixedly connected to the power output shaft of the rotary motor 5, a fixing frame 7 fixedly installed on the top of the base plate 1, a guide strip 8 fixedly installed on the inner bottom of the fixing frame 7, a servo motor 9 fixedly installed on the outer side of the fixing frame 7, a lead screw 10 fixedly connected to the power output shaft of the servo motor 9, a slider 11 threadedly connected to the outer edge of the lead screw 10, a movable frame 12 fixedly installed on the top of the slider 11, a rotating plate 15 rotatably connected to the inner wall of the movable frame 12, a cutter 16 fixedly installed on the inner wall of the rotating plate 15, and an adjustment mechanism installed on the inner wall of the movable frame 12.

[0027] See Figure 1 and Figure 2 Four foot pads 2 are symmetrically fixedly installed on the bottom of the base plate 1, and a protective cover 6 is installed on the top of the base plate 1. One side of the protective cover 6 is connected to the positioning plate 3. The fixing frame 4 and the rotary motor 5 are set inside the protective cover 6, so that the device can be placed stably on the ground and will not easily shake during operation. The protective cover 6 can also protect the fixing frame 4 and the rotary motor 5, ensuring that the fixing frame 4 and the rotary motor 5 are not directly exposed.

[0028] See Figure 3 and Figure 4 The adjustment mechanism includes a nut 13, which is fixedly installed on the inner wall of the movable frame 12. A threaded rod 14 is threadedly connected to the inner wall of the nut 13. A rocker wheel 17 is fixedly installed on the outer edge of the threaded rod 14, and the end of the threaded rod 14 away from the rocker wheel 17 is rotatably connected to the rotating plate 15, so that the rocker wheel 17 can be rotated to drive the threaded rod 14 to rotate, thereby adjusting the tilt of the rotating plate 15 and further adjusting the position of the cutter 16, which is used to cut DTY paper tubes of different diameters.

[0029] See Figure 2 The outer wall of the fixed frame 7 is fixedly equipped with scale lines 18, and the outer wall of the slider 11 is equipped with positioning lines, which can conveniently improve the accuracy of the position of the moving cutter 16, and further ensure the accuracy of cutting DTY paper tubes.

[0030] See Figure 3 The bottom of the slider 11 is slidably connected to the outside of the guide bar 8, and the slider 11 is adapted to be slidably connected to the inside of the fixed frame 7, which can ensure the stability of the slider 11 when it is moving, and can ensure that it moves stably in a straight line without easily shifting its position, thus further ensuring stability.

[0031] See Figure 3 A limiting hole is provided on the inner wall of the fixed frame 7. The end of the lead screw 10 away from the servo motor 9 is rotatably connected to the inner wall of the limiting hole, so that the lead screw 10 can be limited during rotation, ensuring the stability of the lead screw 10 during rotation and preventing it from swinging easily.

[0032] See Figure 1 The inner support column 19 has multiple cutting grooves 20 on its outer edge, so that the DTY paper tube to be cut can be fitted onto the outer edge of the inner support column 19. Thus, the inner support column 19 can provide internal support for the DTY paper tube, and the cutter 16 can ensure the thoroughness of the cut to the inner wall of the cutting groove 20.

[0033] Working principle:

[0034] First, the DTY paper tube to be cut can be fitted onto the outer edge of the inner support column 19, thus providing internal support for the DTY paper tube. Then, the servo motor 9 can be driven to rotate the lead screw 10 according to the required cutting length, thereby moving the slider 11 to slide on the inner wall of the fixed frame 7. The position of the cutter 16 can be adjusted to control the cutting length. Then, the rocker wheel 17 can be rotated to drive the threaded rod 14 to rotate, thereby adjusting the tilt of the rotating plate 15. Further, the position of the cutter 16 can be adjusted until one side of the cutter 16 is in contact with the outside of the DTY paper tube. Then, the rotary motor 5 can be driven to rotate the inner support column 19 and the DTY paper tube, so that the DTY paper tube can rotate around the cutter 16 once, thus realizing the cutting operation.

[0035] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] The present invention has been described above with reference to specific embodiments. However, those skilled in the art should understand that these descriptions are exemplary and not intended to limit the scope of protection of the present invention. Those skilled in the art can make various modifications and variations to the present invention based on its spirit and principles, and these modifications and variations are also within the scope of the present invention.

Claims

1. A high-precision cutting device for DTY paper tubes, comprising a base plate (1), characterized in that, A positioning plate (3) is fixedly installed on the top of the base plate (1). A fixing frame (4) is installed on the outer wall of the positioning plate (3). A rotary motor (5) is fixedly installed on the outer side of the fixing frame (4). An inner support column (19) is fixedly connected to the power output shaft of the rotary motor (5). A fixing frame (7) is fixedly installed on the top of the base plate (1). A guide strip (8) is fixedly installed on the inner bottom of the fixing frame (7). A servo motor (9) is fixedly installed on the outer side of the fixing frame (7). A lead screw (10) is fixedly connected to the power output shaft of the servo motor (9). A slider (11) is threadedly connected to the outer edge of the lead screw (10). A moving frame (12) is fixedly installed on the top of the slider (11). A rotating plate (15) is rotatably connected to the inner wall of the moving frame (12). A cutter (16) is fixedly installed on the inner wall of the rotating plate (15). An adjustment mechanism is installed on the inner wall of the moving frame (12).

2. The high-precision cutting equipment for DTY paper tubes according to claim 1, characterized in that, Four foot pads (2) are symmetrically fixedly installed on the bottom of the base plate (1), and a protective cover (6) is installed on the top of the base plate (1). One side of the protective cover (6) is connected to the positioning plate (3), and the fixing frame (4) and the rotary motor (5) are located inside the protective cover (6).

3. The high-precision cutting equipment for DTY paper tubes according to claim 1, characterized in that, The adjustment mechanism includes a nut (13), which is fixedly installed on the inner wall of the movable frame (12). The inner wall of the nut (13) is threadedly connected to a threaded rod (14), and a rocker wheel (17) is fixedly installed on the outer edge of the threaded rod (14). The end of the threaded rod (14) away from the rocker wheel (17) is rotatably connected to the rotating plate (15).

4. The high-precision cutting equipment for DTY paper tubes according to claim 1, characterized in that, The outer wall of the fixed frame (7) is fixedly installed with scale lines (18), and the outer wall of the slider (11) is installed with positioning lines.

5. The high-precision cutting equipment for DTY paper tubes according to claim 1, characterized in that, The bottom of the slider (11) is slidably connected to the outside of the guide bar (8), and the slider (11) is adapted to be slidably connected to the inside of the fixed frame (7).

6. The high-precision cutting equipment for DTY paper tubes according to claim 1, characterized in that, The inner wall of the fixed frame (7) has a limiting hole, and the end of the lead screw (10) away from the servo motor (9) is rotatably connected to the inner wall of the limiting hole.

7. The high-precision cutting equipment for DTY paper tubes according to claim 1, characterized in that, The outer edge of the inner support column (19) is provided with multiple cutting grooves (20).