Traction tension control structure

By designing a traction tension control structure and utilizing tension detection and a worm gear transmission system, the problem of uneven tension in media materials during digital printing was solved, achieving stable delivery of media materials and improving print quality.

CN224312920UActive Publication Date: 2026-06-02FOSHAN KAISHENG PRINTING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FOSHAN KAISHENG PRINTING CO LTD
Filing Date
2025-08-13
Publication Date
2026-06-02

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Abstract

The utility model discloses a kind of traction tension control structures, comprising: No. support frame;Tension detection machine body, tension detection machine body is installed in the inside of No. support frame, the beneficial effects of the utility model are: by being provided with No. cylinder, No. support frame, rotating stand and adjusting roller, the output end of No. cylinder drives No. support frame, rotating rod, rotating stand and adjusting roller whole up-down movement adjustment are realized, rotating is driven by worm to meshed worm wheel, worm wheel drives the rotation of inside rotating rod, to rotate the angle of rotating stand, adjusting roller and be adjusted, the medium material that passes through adjusting roller is tension control processing, by being provided with No. cylinder, No. fixed stand, No. fixed stand and traction roller, the output end of No. cylinder drives No. fixed stand, traction roller and be adjusted to height position, No. fixed stand inside traction roller and No. fixed stand inside traction roller cooperate.
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Description

Technical Field

[0001] This utility model relates to the field of traction tension control technology, specifically a traction tension control structure. Background Technology

[0002] In the continuous development of the digital printing industry, digital printing machines, as core equipment, directly determine printing quality and production efficiency. During the digital printing process, media materials (such as paper, film, etc.) need to be smoothly unrolled from the roll and accurately transported to the printing unit. If the media material experiences uneven tension during transport, excessive tension may cause the media material to be stretched and deformed, resulting in dimensional deviations and color distortion in the printed pattern. Insufficient tension, on the other hand, will cause wrinkles and loosening of the media material, resulting in defects such as printing ghosting and misregistration, which seriously affect the quality of the printed products. Utility Model Content

[0003] The purpose of this utility model is to provide a tension control structure to solve the problems mentioned in the background art, which are that excessive tension may cause the medium material to be stretched and deformed, resulting in dimensional deviations and color distortion in the printed pattern, while insufficient tension may cause wrinkles and loosening of the medium material, resulting in defects such as printing ghosting and misregistration, which seriously affect the quality of printed products.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a traction tension control structure, comprising:

[0005] Support frame number one;

[0006] Tension testing machine body, which is installed inside the No. 1 support frame, and tension testing roller is installed on the tension testing machine body;

[0007] Fixed brackets are symmetrically installed inside the first support frame. The fixed brackets are located on both sides of the tension testing machine body, and support rollers are rotatably arranged on the inner side of the fixed brackets.

[0008] Cylinder No. 2 is installed on top of support frame No. 1, and support frame No. 2 is provided at the output end of cylinder No. 2.

[0009] A rotating rod is rotatably mounted inside the second support frame, and a rotating frame is fixedly connected to the outside of the rotating rod. The rotating frame is rotatably connected to the second support frame.

[0010] The adjusting roller is rotatably mounted inside the rotating frame;

[0011] A rotating assembly is placed on one side of the second support frame, and the rotating rod is connected to the rotating assembly.

[0012] As a preferred embodiment of this utility model: the rotating assembly includes a side fixing box, a worm gear, and a worm. The side fixing box is fixedly connected to one side of the second support frame. The rotating rod is rotatably connected to the side fixing box. The worm gear is fixedly connected to the outer side of the rotating rod. The worm is rotatably installed inside the side fixing box. The worm is meshed with the worm gear. A second motor is installed on the top of the side fixing box. The output end of the second motor is fixedly connected to the worm.

[0013] As a preferred embodiment of this utility model: a cylinder is installed on the top of the first support frame, and a second fixing frame is fixedly connected to the output end of the first cylinder. A fixing frame is installed inside the first support frame. Traction rollers are rotatably arranged on the inner sides of both the first and second fixing frames. A motor is installed on one side of both the first and second fixing frames. The output end of the first motor is fixedly connected to the traction roller. A limiting rod is symmetrically fixed to the top of the second fixing frame, and the first limiting rod is slidably connected to the first support frame.

[0014] As a preferred embodiment of this utility model: a connecting frame is installed inside the first support frame by bolts, and a second guide roller is rotatably arranged on the inner side of the connecting frame.

[0015] As a preferred embodiment of this utility model: a first guide roller is rotatably provided on the inner side of the first support frame, and a plurality of second limiting rods are symmetrically fixed to the top of the second support frame, and the second limiting rods are slidably connected to the first support frame.

[0016] As a preferred embodiment of this utility model, guide rings are symmetrically installed on the outer side of the support roller by bolts.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model, by setting up a second cylinder, a second support frame, a rotating frame, and an adjusting roller, realizes that the output end of the second cylinder drives the second support frame, the rotating rod, the rotating frame, and the adjusting roller to move up and down as a whole. The worm gear drives the meshing worm wheel to rotate, and the worm wheel drives the inner rotating rod to rotate, thereby adjusting the angle of the rotating frame and the adjusting roller, and controlling the tension of the medium material passing through the adjusting roller. By setting up a first cylinder, a second fixed frame, a first fixed frame, and a traction roller, the output end of the first cylinder drives the second fixed frame and the traction roller to adjust the height position. The traction roller inside the second fixed frame cooperates with the traction roller inside the first fixed frame, and the printing medium material is traction and transported through the two traction rollers. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a rear view of the present invention;

[0020] Figure 3 This is a schematic diagram of the internal structure of the side fixing box of this utility model;

[0021] Figure 4 This is a top view of the present invention.

[0022] In the diagram: 1. Support frame 1; 2. Fixed frame 1; 3. Fixed frame 2; 4. Cylinder 1; 5. Limiting rod 1; 6. Traction roller; 7. Motor 1; 8. Guide roller 1; 9. Cylinder 2; 10. Limiting rod 2; 11. Support frame 2; 12. Rotating frame; 13. Rotating rod; 14. Worm gear; 15. Worm; 16. Motor 2; 17. Adjusting roller; 18. Connecting frame; 19. Guide roller 2; 20. Fixed bracket; 21. Support roller; 22. Guide ring; 23. Tension detection body; 24. Tension detection roller; 25. Side fixing box. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0024] Please see Figures 1 to 4 This utility model provides a technical solution: a traction tension control structure, comprising: a first support frame 1; a tension detection body 23 bolted to the inside of the first support frame 1, with a tension detection roller 24 mounted on the tension detection body 23; a fixed bracket 20 bolted symmetrically mounted inside the first support frame 1, the fixed bracket 20 located on both sides of the tension detection body 23, with a support roller 21 rotatably mounted on the inner side of the fixed bracket 20; a second cylinder 9 bolted to the top of the first support frame 1, with the output end of the second cylinder 9 fixedly connected to the second support frame 11; a rotating rod 13 rotatably mounted inside the second support frame 11, with a rotating frame 12 fixedly mounted on the outer side of the rotating rod 13, the rotating frame 12 rotatably connected to the second support frame 11; an adjusting roller 17 rotatably mounted inside the rotating frame 12; and a rotating assembly placed on one side of the second support frame 11, with the rotating rod 13 connected to the rotating assembly.

[0025] It should be noted that in this embodiment, the device is centrally controlled by an external controller. The output end of cylinder 4 drives the second fixed frame 3 to adjust its height. The second fixed frame 3 drives the inner traction roller 6 to adjust its height. The traction roller 6 inside the second fixed frame 3 cooperates with the traction roller 6 inside the first fixed frame 2 to pull the printing media material. The media material is guided and conveyed by adjusting roller 17 and guide roller 19, and then reaches the tension detection roller 24 through support roller 21. The tension detection roller 24 and tension detection body 23 perform tension detection on the conveyed media material. The tension detection roller 24 serves as the material contact point, transmitting tension signals through its force displacement. The tension detection body 23 integrates a force sensor, a displacement sensor, and a signal processing module to convert physical quantities into electrical signals. After being filtered and amplified by the signal conditioning circuit inside the tension detection body 23, the signals are transmitted to the control system. The control system compares the real-time tension... The force value and the set value are used to output adjustment commands through a PID algorithm, driving the second motor 16 to operate. The output end of the second motor 16 drives the worm 15 to rotate. The worm 15 meshes with the worm wheel 14, converting the rotational motion into the directional rotation of the worm wheel 14. When the medium material is conveyed, the tension change causes the displacement of the tension detection roller 24 to change. The sensor collects the signal in real time and converts it into a tension value. The control system compares the set value and the detected value and dynamically adjusts the drive / brake parameters to maintain tension stability. The output end of the second motor 16 drives the worm 15 to rotate. When the worm 15 rotates, it drives the meshing worm wheel 14 to rotate. The worm wheel 14 drives the inner rotating rod 13 to rotate. The rotating rod 13 adjusts the rotation angle of the rotating frame 12 and the adjusting roller 17. The change in the angle of the adjusting roller 17 changes the path length of the medium material and adjusts the friction distribution between the material and the roller surface, thereby accurately controlling the tension of the medium and forming a complete closed loop of "detection-feedback-adjustment".

[0026] In one embodiment, such as Figures 1 to 3 As shown, the rotating assembly includes a side fixed box 25, a worm gear 14, and a worm 15. The side fixed box 25 is fixedly connected to one side of the second support frame 11. The rotating rod 13 is rotatably connected to the side fixed box 25. The worm gear 14 is fixedly connected to the outside of the rotating rod 13. The worm 15 is rotatably installed inside the side fixed box 25. The worm 15 is meshed with the worm gear 14. The second motor 16 is bolted to the top of the side fixed box 25. The output end of the second motor 16 is fixedly connected to the worm 15.

[0027] It should be noted that in this embodiment, the output end of the second motor 16 drives the worm gear 15 to rotate, the worm gear 15 drives the meshing worm wheel 14 to rotate, the worm wheel 14 drives the inner rotating rod 13 to rotate, the rotating rod 13 drives the rotating frame 12 and the adjusting roller 17 to rotate and adjust, and the adjusting roller 17 completes the adjustment of the conveying tension of the medium material.

[0028] In one embodiment, such as Figures 1 to 4 As shown, a cylinder 4 is bolted to the top of the first support frame 1. A second fixed frame 3 is fixedly connected to the output end of the cylinder 4. A fixed frame 2 is bolted to the inside of the first support frame 1. Traction rollers 6 are rotatably installed on the inner sides of both the first fixed frame 2 and the second fixed frame 3. A motor 7 is bolted to one side of both the first fixed frame 2 and the second fixed frame 3. The output end of the motor 7 is fixedly connected to the traction roller 6. A limiting rod 5 is symmetrically fixed to the top of the second fixed frame 3. The limiting rod 5 is slidably connected to the first support frame 1.

[0029] It should be noted that in this embodiment, the medium material is traction and conveyed by the traction rollers 6 inside the first fixed frame 2 and the second fixed frame 3.

[0030] In one embodiment, such as Figures 1 to 4 As shown, a connecting frame 18 is bolted to the inside of the first support frame 1, and a second guide roller 19 is rotatably mounted on the inner side of the connecting frame 18.

[0031] It should be noted that in this embodiment, the conveying medium material is guided by the adjusting roller 17, the second guide roller 19, and the support roller 21.

[0032] In one embodiment, such as Figures 1 to 4 As shown, a first guide roller 8 is rotatably installed on the inner side of the first support frame 1, and multiple second limit rods 10 are symmetrically fixed to the top of the second support frame 11. The second limit rods 10 are slidably connected to the first support frame 1.

[0033] It should be noted that in this embodiment, when the second support frame 11 moves up and down for adjustment, it drives the second limiting rod 10 to move synchronously. The second limiting rod 10 slides with the first support frame 1 to limit the movement, thereby improving the adjustment stability of the second support frame 11.

[0034] In one embodiment, such as Figure 1 , Figure 2 and Figure 4 As shown, guide rings 22 are symmetrically installed on the outer side of the support roller 21 by bolts.

[0035] It should be noted that in this embodiment, the medium material is guided by the guide rings 22 symmetrically located on the outer side of the support roller 21.

[0036] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are 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.

[0037] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A traction tension control structure, characterized in that, include: Support frame No. 1 (1); Tension detection machine body (23) is installed inside the first support frame (1), and tension detection roller (24) is installed on the tension detection machine body (23); Fixed bracket (20) is symmetrically installed inside the first support frame (1). The fixed bracket (20) is located on both sides of the tension detection machine body (23). The inner side of the fixed bracket (20) is rotatably provided with a support roller (21). Cylinder No. 2 (9) is installed on the top of support frame No. 1 (1), and support frame No. 2 (11) is provided at the output end of cylinder No. 2 (9). A rotating rod (13) is rotatably mounted inside the second support frame (11). A rotating frame (12) is fixedly connected to the outside of the rotating rod (13). The rotating frame (12) is rotatably connected to the second support frame (11). Adjusting roller (17) is rotatably mounted inside the rotating frame (12); A rotating assembly is placed on one side of the second support frame (11), and the rotating rod (13) is connected to the rotating assembly.

2. The traction tension control structure according to claim 1, characterized in that: The rotating assembly includes a side fixing box (25), a worm gear (14), and a worm (15). The side fixing box (25) is fixedly connected to one side of the second support frame (11). The rotating rod (13) is rotatably connected to the side fixing box (25). The worm gear (14) is fixedly connected to the outside of the rotating rod (13). The worm (15) is rotatably installed inside the side fixing box (25). The worm (15) is meshed with the worm gear (14). The second motor (16) is installed on the top of the side fixing box (25). The output end of the second motor (16) is fixedly connected to the worm (15).

3. The traction tension control structure according to claim 1, characterized in that: A cylinder (4) is installed on the top of the first support frame (1). A second fixed frame (3) is fixedly connected to the output end of the first cylinder (4). A fixed frame (2) is installed inside the first support frame (1). Traction rollers (6) are rotatably arranged on the inner sides of both the first fixed frame (2) and the second fixed frame (3). A motor (7) is installed on one side of both the first fixed frame (2) and the second fixed frame (3). The output end of the first motor (7) is fixedly connected to the traction roller (6). A limiting rod (5) is symmetrically fixed to the top of the second fixed frame (3). The first limiting rod (5) is slidably connected to the first support frame (1).

4. The traction tension control structure according to claim 1, characterized in that: The first support frame (1) is fitted with a connecting frame (18) by bolts inside, and a second guide roller (19) is rotatably mounted on the inner side of the connecting frame (18).

5. The traction tension control structure according to claim 1, characterized in that: The first support frame (1) has a first guide roller (8) rotatably mounted on its inner side. The second support frame (11) has multiple second limit rods (10) symmetrically fixed to its top. The second limit rods (10) are slidably connected to the first support frame (1).

6. The traction tension control structure according to claim 1, characterized in that: Guide rings (22) are symmetrically installed on the outer side of the support roller (21) by bolts.