Novel automatic tension roller

Abstract

The utility model discloses a novel automatic tension roller, which belongs to the technical field of tension rollers, and comprises a rotating shaft, a shell fixedly connected to the rotating shaft, and a sealing cover movably connected to one side of the shell. The friction blocks are arranged on the shell in an equal-angle sliding mode and used for increasing the material friction coefficient; the placing assembly is arranged on the shell and used for installing the friction block, the placing assembly comprises a placing frame arranged in the shell in a sliding mode, and the friction block is movably connected into the placing frame; and the lifting assembly is arranged in the shell and used for lifting the placing frame, the lifting assembly comprises an extrusion wheel rotationally arranged in the shell, and the extrusion wheel is fixed through a self-locking assembly arranged on the sealing cover, so that the equipment is more convenient to use, and the service life is longer.

Description

Technical Field

[0001] This utility model belongs to the field of tension roller technology, and in particular relates to a novel automatic tension roller. Background Technology

[0002] Tension control systems are often integrated systems of tension sensors and tension controllers. Currently, they are mainly used in equipment in metallurgy, papermaking, film production, dyeing and finishing, weaving, plastics, and wire manufacturing. They are automatic control systems that achieve constant or tapered tension control, primarily ensuring synchronization between rollers and uniform control of winding and unwinding. A typical tension control system mainly consists of a tension controller, a tension reader, a tension detector, a brake, and a clutch.

[0003] Tension rollers are one such component. Their function is to tighten the wound material through their positioning, preventing loosening during winding. Traditionally, to increase the friction coefficient, polyurethane material is poured onto the main shaft of tension rollers. However, in actual use, friction between the material and the polyurethane causes the amount of polyurethane to gradually decrease. As the polyurethane decreases, the diameter of the tension roller shrinks, requiring repeated adjustments to its position. Furthermore, excessive wear of the polyurethane makes timely replenishment impossible, necessitating replacement and shortening the roller's lifespan. This also reduces its ease of use. For example, the patent with the number CN202321864687.4 exhibits these problems, resulting in a short equipment lifespan, inconvenience in replacing polyurethane material, and waste of materials such as the main shaft. Utility Model Content

[0004] In response to the problems existing in the prior art, this utility model provides a new type of automatic tension roller, which solves the problem that the existing equipment wears out over a long period of time and cannot be replenished in time, resulting in a shortened lifespan.

[0005] This utility model is implemented as follows: a novel automatic tension roller includes a rotating shaft, a housing fixedly connected to the rotating shaft, a sealing cover movably connected to one side of the housing, and also includes;

[0006] Friction blocks are equidistantly slidably mounted on the housing to increase the coefficient of friction of the material.

[0007] A placement assembly, mounted on a housing, for mounting friction blocks, includes a placement bracket slidably disposed within the housing, wherein the friction blocks are movably connected within the placement bracket;

[0008] A lifting assembly, disposed within the housing, is used to lift the rack, including rotating a compression wheel disposed within the housing, the compression wheel being secured by a self-locking assembly disposed on a sealing cover.

[0009] As a preferred embodiment of this utility model, there are multiple placement racks, which are circumferentially distributed within the rotating shaft. The multiple friction blocks on each set of placement racks are arranged linearly, and the ends of the friction blocks pass through the housing.

[0010] As a preferred embodiment of this utility model, the placement assembly further includes two pairs of springs fixedly disposed within the housing, a track plate fixedly disposed between the two pairs of springs, and the placement frame slidably disposed within the track plate, with a limiting rod for guiding the springs.

[0011] As a preferred embodiment of the present invention, the lifting assembly further includes a pressing block installed on the lower side of the placement frame, and the pressing block is in active contact with the pressing wheel.

[0012] As a preferred embodiment of this utility model, the self-locking component includes a guide groove formed on the sealing cover, two slide rods are provided at the end of the extrusion wheel, and the slide rods are slidably disposed in the guide groove. A ratchet is movably engaged between the two slide rods, and a pawl that is in movable contact with the ratchet is installed on the sealing cover.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention utilizes the cooperation between the placement rack and the friction block in the device to form a friction surface on the outer shell, thereby effectively ensuring the friction effect of the outer shell and preventing the outer shell from being too smooth, which would prevent it from achieving the desired tension. Furthermore, when the friction block shortens due to prolonged friction, the position of the placement plate can be adjusted to extend the friction block, ensuring it maintains its extended length. This allows the device to maintain the diameter of the shell during use, preventing the diameter from decreasing due to friction loss, further improving the practicality and ease of use of the device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the front view structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the front cross-sectional structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the internal structure of this utility model from a partial right-side view.

[0019] In the picture:

[0020] 1. Rotating shaft; 2. Housing; 3. Sealing cover; 4. Friction block; 5. Track plate; 6. Placement rack; 7. Spring; 8. Limiting rod; 9. Extrusion block; 10. Extrusion wheel; 11. Guide groove; 12. Ratchet; 13. Pawl. Detailed Implementation

[0021] To further understand the utility model content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0022] The structure of this utility model will now be described in detail with reference to the accompanying drawings.

[0023] like Figures 1 to 4 As shown, the novel automatic tension roller provided in this embodiment of the present invention includes a rotating shaft 1, a housing 2 fixedly connected to the rotating shaft 1, a sealing cover 3 movably connected to one side of the housing 2, and further includes;

[0024] Friction blocks 4 are equidistantly slidably mounted on the housing 2 to increase the coefficient of friction of the material;

[0025] A placement component, mounted on the housing 2, is used for mounting the friction block 4, including a placement rack 6 slidably disposed within the housing 2, wherein the friction block 4 is movably connected within the placement rack 6;

[0026] The lifting assembly, located inside the housing 2, is used to lift the placement rack 6. It includes rotating the extrusion wheel 10 located inside the housing 2, and the extrusion wheel 10 is fixed by a self-locking assembly located on the sealing cover 3.

[0027] As a preferred embodiment of this utility model, there are multiple placement racks 6, which are circumferentially distributed within the rotating shaft 1. The multiple friction blocks 4 on each set of placement racks 6 are arranged linearly, and the ends of the friction blocks 4 pass through the housing 2, making the distribution of friction blocks 4 more uniform, thereby ensuring the friction force on the outside of the housing 2 and further ensuring the friction between the material and the housing 2.

[0028] As a preferred embodiment of this utility model, the placement assembly further includes two pairs of springs 7 fixedly disposed within the housing 2, a track plate 5 fixedly disposed between the two pairs of springs 7, and the placement frame 6 slidably disposed within the track plate 5. A limiting rod 8 for guiding the spring 7 is provided within the spring 7, which facilitates the replacement of the friction block 4 and ensures the lifting of the placement frame 6, preventing it from shifting during lifting.

[0029] As a preferred embodiment of this utility model, the lifting assembly also includes a pressing block 9 installed on the lower side of the placement frame 6, and the pressing block 9 is in active contact with the pressing wheel 10, which facilitates the movement of the placement frame 6 and ensures the extension of the friction block 4, thereby ensuring not only its friction force but also its diameter.

[0030] As a preferred embodiment of this utility model, the self-locking component includes a guide groove 11 formed on the sealing cover 3, two slide rods provided at the end of the extrusion wheel 10, and the slide rods are slidably disposed in the guide groove 11. A ratchet 12 is movably engaged between the two slide rods, and a pawl 13 is installed on the sealing cover 3 that is in movable contact with the ratchet 12, so as to lock the extrusion wheel 10 and ensure the lifting of the placement frame 6 by the extrusion wheel 10.

[0031] The working principle of this utility model:

[0032] refer to Figure 1 When the friction block 4 extends, the end of the friction block 4 is located on the outside of the housing 2. The arrangement of multiple sets of friction blocks 4 can effectively change the friction force on the outside of the housing 2, thereby ensuring sufficient friction between the material and the outer shell to ensure its tension.

[0033] refer to Figure 3 After the equipment has been used for a period of time, the friction block 4 will wear down, causing its protruding part to shorten. This can be remedied by rotating the ratchet 12, which will drive the extrusion wheel 10 inside the housing 2 to rotate. When the extrusion wheel 10 rotates, the protruding part on the extrusion wheel 10 will extrude pressure. Figure 4 The pressing block 9 at the bottom of the middle placement frame 6 drives the placement frame 6 and the track plate 5 to move upward. At the same time, the moving track plate 5 will press the spring 7, causing the spring 7 to contract. At this time, the friction block 4 on the placement frame 6 will extend out of the outer shell again to ensure the diameter of the outer side of the shell 2, thereby avoiding the situation where the diameter of the friction block 4 becomes smaller due to friction shortening. At the same time, the friction of the friction block 4 shortens, and with the pushing of the pressing block 9, it always keeps the outside in a state of friction.

[0034] refer to Figure 3 , 4 When the friction block 4 is worn down to its shortest length, it needs to be replaced. This can be done by removing the sealing cover 3 and then pulling the placement rack 6 out of the track plate 5. This makes the replacement more convenient and avoids the situation where the outer shell becomes unusable due to wear of the casting material on the outer shell, thus avoiding the waste of resources.

[0035] This invention utilizes the cooperation between the placement rack 6 and the friction block 4 in the device to form a friction surface on the outer shell, thereby effectively ensuring the friction effect of the outer shell and preventing the outer shell from being too smooth, which would prevent it from achieving the tension effect. At the same time, when the friction block 4 is subjected to friction for a long time and becomes shorter, the position of the placement plate can be adjusted to allow the friction block 4 to extend, thus maintaining its extended length. This ensures that the diameter of the shell 2 is maintained during use, preventing the diameter from decreasing due to friction loss, and further improving the practicality and ease of use of the device.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] 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 novel automatic tension roller, comprising a rotating shaft (1), wherein a housing (2) is fixedly connected to the rotating shaft (1), and a sealing cover (3) is movably connected to one side of the housing (2), characterized in that: Also includes; Friction blocks (4) are equidistantly sliding on the housing (2) to increase the coefficient of friction of the material; A placement assembly, disposed on the housing (2), is used for mounting the friction block (4), including a placement rack (6) slidably disposed within the housing (2), wherein the friction block (4) is movably connected within the placement rack (6); The lifting assembly, located inside the housing (2), is used to lift the rack (6), including rotating the extrusion wheel (10) located inside the housing (2), and the extrusion wheel (10) is fixed by a self-locking assembly located on the sealing cover (3).

2. The novel automatic tension roller as described in claim 1, characterized in that: There are multiple placement racks (6) and they are circumferentially distributed inside the rotating shaft (1). The multiple friction blocks (4) on each set of placement racks (6) are arranged linearly, and the ends of the friction blocks (4) pass through the shell (2).

3. The novel automatic tension roller as described in claim 2, characterized in that: The placement assembly also includes two pairs of springs (7) fixedly disposed within the housing (2), a track plate (5) fixedly disposed between the two pairs of springs (7), and the placement frame (6) is slidably disposed within the track plate (5), and a limiting rod (8) for guiding the springs (7) is disposed within the springs (7).

4. The novel automatic tension roller as described in claim 3, characterized in that: The lifting assembly also includes a pressing block (9) installed on the underside of the placement frame (6), and the pressing block (9) is in active contact with the pressing wheel (10).

5. The novel automatic tension roller as described in claim 4, characterized in that: The self-locking assembly includes a guide groove (11) opened on the sealing cover (3), two slide rods are provided at the end of the extrusion wheel (10), and the slide rods are slidably disposed in the guide groove (11). A ratchet (12) is movably engaged between the two slide rods, and a pawl (13) that is in movable contact with the ratchet (12) is installed on the sealing cover (3).

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