CN215946209U - Unreeling tension control device - Google Patents
Unreeling tension control device Download PDFInfo
- Publication number
- CN215946209U CN215946209U CN202122635917.7U CN202122635917U CN215946209U CN 215946209 U CN215946209 U CN 215946209U CN 202122635917 U CN202122635917 U CN 202122635917U CN 215946209 U CN215946209 U CN 215946209U
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- spring
- control device
- film
- tension control
- unwinding
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Abstract
The utility model discloses an unreeling tension control device which comprises a fixed plate, a first spring arranged on the fixed plate, a cam connected with the first spring, a rotating shaft driving the cam to rotate and a pinch roller connected with the rotating shaft, wherein the pinch roller is tightly attached to a film, the film is arranged on an unreeling shaft, a moving ring is connected to the unreeling shaft, a friction plate is arranged on the outer side of the moving ring, a static ring is connected to the friction plate, a second spring is connected to the front end of the static ring, the other end of the second spring is connected with a sliding shaft, the end part of the sliding shaft is connected with a shifting wheel, a shifting rod is connected to the shifting wheel, and the shifting rod is connected with the cam. The unwinding tension control device with the structure realizes that the unwinding resistance is reduced along with the reduction of the unwinding diameter of the film, and ensures constant tension and stable operation when the film is unwound.
Description
Technical Field
The utility model relates to the technical field of film finishing and processing, in particular to an unreeling tension control device.
Background
In the film finishing process, the whole roll of cut film needs to be subjected to subsequent treatment, and the film needs to be continuously and stably unreeled by the unreeling device so as to realize subsequent processing of the film. Unwinding device's mechanical structure generally adopts fixed frictional resistance to realize unreeling the film and tighten, along with the film unreels the gradual reduction of diameter, and fixed frictional resistance just can make the operation tension grow gradually of film, and the film operation is unstable, has seriously influenced product quality. In view of the above, it is desirable to design an unwinding tension control device.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an unreeling tension control device, which realizes that the unreeling resistance is reduced along with the reduction of the unreeling diameter of a film, ensures constant tension when the film is unreeled and operates stably.
In order to achieve the purpose, the utility model provides an unreeling tension control device which comprises a fixed plate, a first spring arranged on the fixed plate, a cam connected with the first spring, a rotating shaft driving the cam to rotate and a pinch roller connected with the rotating shaft, wherein the pinch roller is tightly attached to a film, the film is arranged on an unreeling shaft, the unreeling shaft is connected with a movable ring, a friction plate is arranged on the outer side of the movable ring, a static ring is connected onto the friction plate, the front end of the static ring is connected with a second spring, the other end of the second spring is connected with a sliding shaft, the end of the sliding shaft is connected with a shifting wheel, the shifting wheel is connected with a shifting rod, and the shifting rod is connected with the cam.
Preferably, the bottom end of the first spring is fixed on the fixing plate through a fixing rod, and the fixing plate is connected with the fixing rod through a bolt and is perpendicular to the fixing rod.
Preferably, the rotating shaft is parallel to the fixing rod, and the rotating shaft is connected with the fixing rod through a bearing.
Preferably, the shifting lever is connected with the fixed plate through a telescopic rod, the fixed plate is connected with the telescopic rod through a bolt, and the telescopic rod is parallel to the rotating shaft.
Preferably, the friction plate is connected with the sliding shaft through a connecting plate, and the sliding shaft is perpendicular to the connecting plate.
Preferably, the outer diameter of the dynamic ring is smaller than that of the static ring.
Therefore, the unwinding tension control device with the structure realizes that the unwinding resistance is reduced along with the reduction of the unwinding diameter of the film, ensures constant tension when the film is unwound, and operates stably.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
Fig. 1 is a schematic structural diagram of an unwinding tension control device according to an embodiment of the present invention;
fig. 2 is a schematic sheet path diagram of an unwinding tension control device according to an embodiment of the present invention.
Detailed Description
The technical solution of the present invention is further illustrated by the accompanying drawings and examples.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
Examples
Fig. 1 is a schematic structural view of an unwinding tension control device according to an embodiment of the present invention, fig. 2 is a schematic sheet path view of an unwinding tension control device according to an embodiment of the present invention, as shown in the figure, the utility model provides an unreeling tension control device which comprises a fixing plate 1, a first spring 2 arranged on the fixing plate 1, a cam 3 connected with the first spring 2, a rotating shaft 4 driving the cam 3 to rotate and a pinch roller 5 connected with the rotating shaft 4, wherein the pinch roller 5 is tightly attached to a film 6, the film 6 is arranged on an unreeling shaft 7, the unreeling shaft 7 is connected with a moving ring 8, the outer side of the moving ring 8 is provided with a friction plate 9, the friction plate 9 is connected with a static ring 10, the front end of the static ring 10 is connected with a second spring 11, the other end of the second spring 11 is connected with a sliding shaft 12, the end part of the sliding shaft 12 is connected with a shifting wheel 13, the shifting wheel 13 is connected with a shifting rod 14, and the shifting rod 14 is connected with the cam 3. When the device works, the film is fixed on the unreeling shaft according to the graph shown in fig. 2, the pinch roller is tightly attached to the film through the tension of the first spring, the pinch roller unreels the film with reduced diameter under the tension of the spring and swings, so that the rotating shaft is driven to rotate, the rotating shaft rotates to drive the cam to rotate, the rotation of the cam can push the shifting rod to swing, the shifting rod swings to push the shifting wheel and the sliding shaft to move, the sliding shaft moves to change the length of the second spring, the length change of the second spring can change the pressure of the second spring on the stationary ring, the movable ring and the friction plates, the friction force between the friction plates controls the resistance of the unreeling shaft through the movable ring, and the friction force between the friction plates is controlled through the pressure change of the second spring. The tension is constant when the film is unreeled, and the operation is stable.
The bottom end of the first spring 2 is fixed on the fixing plate 1 through a fixing rod 15, and the fixing plate 1 is connected with the fixing rod 15 through a bolt and is perpendicular to the fixing rod 15. The rotary shaft 4 is parallel to the fixing rod 15, and the rotary shaft 4 is connected to the fixing plate 1 through a bearing 16.
The driving lever 14 is connected with the fixing plate 1 through the telescopic rod 17, the fixing plate 1 is connected with the telescopic rod 17 through a bolt, the telescopic rod 17 is parallel to the rotating shaft 4, and the driving lever can be guaranteed to be driven.
The friction plate 9 is connected with a sliding shaft 12 through a connecting plate 18, and the sliding shaft 12 is perpendicular to the connecting plate 18. The outer diameter of the rotating ring 8 is smaller than that of the stationary ring 10. The friction plate can move along with the sliding shaft, the moving of the friction plate can enable the movable ring to rotate, and the movable ring can control the resistance of the unwinding shaft.
Therefore, the unwinding tension control device with the structure realizes that the unwinding resistance is reduced along with the reduction of the unwinding diameter of the film, ensures constant tension when the film is unwound, and operates stably.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the utility model without departing from the spirit and scope of the utility model.
Claims (6)
1. The utility model provides an unreel tension control device which characterized in that:
the film unwinding device comprises a fixing plate, a first spring arranged on the fixing plate, a cam connected with the first spring, and a driving mechanism, wherein the rotating shaft is connected with the cam, and a pinch roller connected with the rotating shaft, the pinch roller is tightly attached to a film, the film is arranged on an unwinding shaft, a moving ring is connected to the unwinding shaft, a friction plate is arranged on the outer side of the moving ring, a static ring is connected to the friction plate, the front end of the static ring is connected with a second spring, the other end of the second spring is connected with a sliding shaft, the end of the sliding shaft is connected with a shifting wheel, a shifting rod is connected to the shifting wheel, and the shifting rod is connected with the cam.
2. The unwinding tension control device of claim 1, wherein: the bottom end of the first spring is fixed on the fixing plate through a fixing rod, and the fixing plate is connected with the fixing rod through a bolt and is perpendicular to the fixing rod.
3. The unwinding tension control device as claimed in claim 2, wherein: the rotating shaft is parallel to the fixed rod and is connected with the fixed plate through a bearing.
4. The unwinding tension control device as claimed in claim 3, wherein: the driving lever is connected with the fixed plate through a telescopic rod, the fixed plate is connected with the telescopic rod through a bolt, and the telescopic rod is parallel to the rotating shaft.
5. The unwinding tension control device as claimed in claim 4, wherein: the friction plate is connected with the sliding shaft through a connecting plate, and the sliding shaft is perpendicular to the connecting plate.
6. The unwinding tension control device as claimed in claim 5, wherein: the outer diameter of the dynamic ring is smaller than that of the static ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122635917.7U CN215946209U (en) | 2021-10-29 | 2021-10-29 | Unreeling tension control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122635917.7U CN215946209U (en) | 2021-10-29 | 2021-10-29 | Unreeling tension control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215946209U true CN215946209U (en) | 2022-03-04 |
Family
ID=80411487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122635917.7U Active CN215946209U (en) | 2021-10-29 | 2021-10-29 | Unreeling tension control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215946209U (en) |
-
2021
- 2021-10-29 CN CN202122635917.7U patent/CN215946209U/en active Active
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