CN203246936U - Thin film tension control device - Google Patents
Thin film tension control device Download PDFInfo
- Publication number
- CN203246936U CN203246936U CN 201320212345 CN201320212345U CN203246936U CN 203246936 U CN203246936 U CN 203246936U CN 201320212345 CN201320212345 CN 201320212345 CN 201320212345 U CN201320212345 U CN 201320212345U CN 203246936 U CN203246936 U CN 203246936U
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- film
- control device
- tension control
- roll
- thin film
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- Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
- Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
Abstract
The utility model discloses a thin film tension control device. A pressure sensor is arranged on a guide roller. A magnetic powder brake is installed at one end of an unrolling roller. The pressure sensor and the magnetic powder brake are controlled by a controller. According to the thin film tension control device, the pressure sensor is utilized for sensing pressure on the guide roller in the rotating process of thin film rolls, a pressure signal is transmitted to a control box, the control box converts the received signal into an order and transmits the order to the magnetic powder brake, and the magnetic power brake is started according to the order to adjust the rotating speed of the unrolling roller. Accordingly, the surface quality of thin films is improved, the scrap rate of the thin films is lowered and production efficiency is also improved.
Description
Technical field
The utility model belongs to the protective film manufacturing, particularly a kind of film tension control device.
Background technology
The first step of producing protective film is to unreel, and the film of rolling is placed on the upper material roller, then spurs film and rotates by film roll.But the drum diameter of film roll changes in unreeling process, and the variation of diameter can cause the variation of memberane stress.Tension force is too small, causes film lax wrinkling, also can wander off in the horizontal.Overtension causes film stretching excessive, tension lines can occur in the vertical, the rib of protuberance can occur on the surface of film roll, even can make the deformation of thin membrane fracture.Therefore, in the process that unreels, be the efficient of assurance production and the surface quality of film, it is very necessary keeping constant tension force.
The utility model content
For solving the problems of the technologies described above, the utility model provides a kind of film tension control device, with degree of tension that realize to regulate film, the purpose that improves the surface quality of film, effectively reduce film condemnation factor, enhance productivity.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of film tension control device comprises deflector roll and let off roll, is provided with pressure sensor on the described deflector roll, and an end of described let off roll is equipped with electromagnetic power brake, and described pressure sensor and electromagnetic power brake are controlled by a controller.
Preferably, be provided with the Three pressures sensor on the described deflector roll, described Three pressures sensor lays respectively at the two ends of described deflector roll with middle.
Preferably, on the described electromagnetic power brake radiator is installed.
Pass through technique scheme, the film tension control device that the utility model provides, when utilization is positioned at deflector roll two ends and middle pressure sensor and comes the sensor film volume to rotate to the pressure of deflector roll, and pressure signal reached control box, control box is converted into instruction with the signal that receives and passes to electromagnetic power brake, electromagnetic power brake starts according to instruction, and then adjusts the velocity of rotation of let off roll.Because let off roll is just rotated by the film pulling, when the velocity of rotation of let off roll is slowed down, can be to pulling force backward of film, film can moment by retighten, when the velocity of rotation of let off roll increases, can give thrust forward of film, film moment is relaxed, so not only improved film surface quality, reduced the condemnation factor of film, but also improved production efficiency.
Description of drawings
In order to be illustrated more clearly in the technical scheme among the utility model embodiment, the accompanying drawing of required use was done to introduce simply during the below will describe embodiment.
Fig. 1 is the structural representation of the disclosed a kind of film tension control device of the utility model embodiment.
The specific embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described.
The utility model provides a kind of film tension control device (referring to Fig. 1), comprise deflector roll 11 and let off roll 12, be provided with pressure sensor 13 on the deflector roll 11, an end of let off roll 12 is equipped with electromagnetic power brake 14, and pressure sensor 13 and electromagnetic power brake 14 are by a controller 15 controls.
Be provided with Three pressures sensor 13 on the deflector roll 11, Three pressures sensor 13 lays respectively at the two ends of deflector roll 11 with middle.Wherein, be provided with the two ends that lay respectively at let off roll 12 and middle Three pressures sensor 13 on the let off roll 12.Film generally is two pine, middle tight to occur in unreeling process, and perhaps two is tight, the situation of middle pine, and so placement force sensor 13 can obtain comparatively accurately pressure data.
In normally loaded process, when having the startup magnetic powders brake of inertia, magnetic can with the working surface production slippage, having slippage to produce will heat generation, namely is the production frictional heat.The temperature of electromagnetic power brake 14 inside, each parts will rise thereupon, and frictional heat is larger, and temperature inner and each parts will be higher, and therefore 16 pairs of electromagnetic power brakes 14 of installation of heat radiator dispel the heat on electromagnetic power brake 14.
When the utility model utilization is positioned at deflector roll 11 two ends and middle pressure sensor 13 and comes the sensor film volume to rotate to the pressure of deflector roll 11, and pressure signal reached control box, control box is converted into instruction with the signal that receives and passes to electromagnetic power brake 14, electromagnetic power brake 14 starts according to instruction, and then adjusts the velocity of rotation of let off roll 12.Because let off roll 12 is just rotated by the film pulling, when the velocity of rotation of let off roll 12 is slowed down, can be to pulling force backward of film, film can moment by retighten, when the velocity of rotation of let off roll 12 increases, can give thrust forward of film, film moment is relaxed, so not only improved film surface quality, reduced the condemnation factor of film, but also improved production efficiency.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and General Principle as defined herein can in the situation that does not break away from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (3)
1. a film tension control device comprises deflector roll and let off roll, it is characterized in that, is provided with pressure sensor on the described deflector roll, and an end of described let off roll is equipped with electromagnetic power brake, and described pressure sensor and electromagnetic power brake are controlled by a controller.
2. a kind of film tension control device according to claim 1 is characterized in that, is provided with the Three pressures sensor on the described deflector roll, and described Three pressures sensor lays respectively at the two ends of described deflector roll with middle.
3. a kind of film tension control device according to claim 1 and 2 is characterized in that, on the described electromagnetic power brake radiator is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320212345 CN203246936U (en) | 2013-04-24 | 2013-04-24 | Thin film tension control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320212345 CN203246936U (en) | 2013-04-24 | 2013-04-24 | Thin film tension control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203246936U true CN203246936U (en) | 2013-10-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320212345 Expired - Fee Related CN203246936U (en) | 2013-04-24 | 2013-04-24 | Thin film tension control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203246936U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104876047A (en) * | 2015-05-25 | 2015-09-02 | 苏州爱立方服饰有限公司 | Tensile force automatic adjusting device for coating machine cloth unwinding roller |
| CN106966211A (en) * | 2017-05-22 | 2017-07-21 | 北塘区军之印纸品加工厂 | A kind of printing equipment paper rate of tension automatic adjusting control device |
| CN107934633A (en) * | 2017-12-14 | 2018-04-20 | 江苏华夏电影胶片修复技术有限公司 | A kind of new and effective cinefilm rewind bench |
| CN110329827A (en) * | 2019-05-20 | 2019-10-15 | 潍坊职业学院 | The automatic compression device of base fabric and frame |
| CN113381160A (en) * | 2021-06-18 | 2021-09-10 | 上海航天测控通信研究所 | Film antenna tensile force active adjusting mechanism |
| CN113636384A (en) * | 2021-10-19 | 2021-11-12 | 佛山市天正机械有限公司 | Unreeling machine suitable for easily-stretched and deformed film material |
-
2013
- 2013-04-24 CN CN 201320212345 patent/CN203246936U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104876047A (en) * | 2015-05-25 | 2015-09-02 | 苏州爱立方服饰有限公司 | Tensile force automatic adjusting device for coating machine cloth unwinding roller |
| CN106966211A (en) * | 2017-05-22 | 2017-07-21 | 北塘区军之印纸品加工厂 | A kind of printing equipment paper rate of tension automatic adjusting control device |
| CN107934633A (en) * | 2017-12-14 | 2018-04-20 | 江苏华夏电影胶片修复技术有限公司 | A kind of new and effective cinefilm rewind bench |
| CN110329827A (en) * | 2019-05-20 | 2019-10-15 | 潍坊职业学院 | The automatic compression device of base fabric and frame |
| CN113381160A (en) * | 2021-06-18 | 2021-09-10 | 上海航天测控通信研究所 | Film antenna tensile force active adjusting mechanism |
| CN113636384A (en) * | 2021-10-19 | 2021-11-12 | 佛山市天正机械有限公司 | Unreeling machine suitable for easily-stretched and deformed film material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131023 Termination date: 20160424 |