Film anti-stretching double-sided cooling system
By introducing the coordinated control of tension and temperature sensing modules into the film cooling system, the traction speed and cooling wheel speed are adjusted, and the stretching problem caused by tension changes in the film during cooling is solved, ensuring the forming quality and cooling effect of the film.
Patent Information
- Application Number
- CN202420441541.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-07
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-03-07
AI Technical Summary
Existing film cooling devices are difficult to effectively deal with tension changes caused by inconsistent velocity in the length direction of the material belt, which leads to the film being easily stretched during cooling, affecting its quality.
A film anti-stretch double-sided cooling system is designed, including a traction wheel set, cooling wheel set and guide wheel set. Through the coordinated control of the tension sensing module and the temperature sensing module, the traction speed and the rotation speed of the cooling wheel set are adjusted to ensure that the film maintains appropriate tension and temperature during the cooling process.
It effectively prevents the film from stretching due to tension changes during cooling, ensures the forming quality of the film, and achieves the expected cooling effect.
Smart Images
Figure CN222755878U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of film cooling, in particular to a film stretch-proof double-sided cooling system. Background Art
[0002] In the film production process, since the film is very easy to be stretched at a high temperature, wrinkles will appear on the film surface, affecting the flatness of the film, so the film needs to be cooled and shaped; common cooling devices are difficult to respond in time to the tension changes caused by the inconsistent speed of the film strip in the length direction. Since the strip is not completely reduced to the target temperature during the cooling process, the tension generated by the tension change will still cause the film to stretch, affecting the quality of the film. Summary of the invention
[0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the utility model provides a double-sided cooling system for film stretch resistance, which ensures that the expected cooling effect is achieved while maintaining the tension range of the film to prevent the film from stretching and affecting the quality.
[0004] Technical solution: To achieve the above-mentioned purpose, the utility model provides a film anti-stretching double-sided cooling system, comprising a traction wheel group, a cooling wheel group and a guide wheel group, the traction wheel group rolls and clamps the film, the film passes through the cooling wheel group and the guide wheel group, the guide wheel group is arranged at the film inlet and outlet port of the cooling wheel group; a tension sensing module is provided on the film inlet port side of the cooling wheel group, and the tension feedback signal output end of the tension sensing module is electrically connected to the control signal receiving end of the cooling wheel group through a control module; a temperature sensing module is provided on the film output port side of the cooling wheel group, and the temperature feedback signal output end of the temperature sensing module is electrically connected to the control signal receiving end of the traction wheel group through a control module.
[0005] Furthermore, the cooling wheel group is provided with two cooling wheels, and the two cooling wheels are arranged with a height difference; the guide wheel group on the film entrance port side of the cooling wheel group is a front guide wheel group, which is higher than the lower cooling wheel; the guide wheel group on the film exit port side of the cooling wheel group is a rear guide wheel group, which is lower than the higher cooling wheel; after the film passes through the front guide wheel group, it successively bypasses the lower cooling wheel and the high cooling wheel.
[0006] Furthermore, the traction wheel group includes a driving wheel and a clamping wheel, the clamping wheel swings away from or close to the driving wheel, the driving wheel is connected to the output end of the drive motor, and the rotating shaft of the driving wheel is connected to the rotating shaft of the lower cooling wheel through a transmission structure.
[0007] Furthermore, the rotating shaft of the high-position cooling wheel is connected to the output end of the driving device, and the control signal receiving end of the cooling wheel group is electrically connected to the speed regulating module of the driving device.
[0008] Furthermore, the front guide wheel group includes two guide wheels with a vertical spacing, the film passes through the two guide wheels successively and contacts the opposite side wheel surfaces of the two guide wheels respectively, and the tension sensing module is attached to the film section between the two guide wheels.
[0009] Furthermore, the rear guide wheel group includes two guide wheels with a vertical spacing, the film passes through the two guide wheels successively and contacts the wheel surfaces on the same side of the two guide wheels, and the temperature sensing module includes two temperature sensors, which are symmetrically arranged on both sides of the film segment between the two guide wheels.
[0010] Beneficial effect: The utility model is a film anti-stretching double-sided cooling system, which coordinates the traction speed through temperature detection after cooling and tension detection before cooling, ensuring that the cooling time fully achieves the expected cooling effect, while the uncooled section of the film will not be affected by the tension change and cause the film to stretch, effectively ensuring the film forming quality during the cooling process. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Attached Figure 1 The utility model is a schematic diagram of the overall structure of an embodiment. DETAILED DESCRIPTION
[0012] The utility model is further described below in conjunction with the accompanying drawings.
[0013] As attached Figure 1 The anti-stretching double-sided cooling system of a film comprises a traction wheel group 1, a cooling wheel group 2 and a guide wheel group 3. The traction wheel group 1 rolls and clamps a film 4, and the film 4 passes through the cooling wheel group 2 and the guide wheel group 3. The guide wheel group 3 is arranged at the film inlet and outlet ports of the cooling wheel group 2; a tension sensing module 5 is provided on the film inlet port side of the cooling wheel group 2, and the tension feedback signal output end of the tension sensing module 5 is electrically connected to the control signal receiving end of the cooling wheel group 2 through a control module; a temperature sensing module 6 is provided on the film output port side of the cooling wheel group 2, and the temperature feedback signal output end of the temperature sensing module 6 is electrically connected to the control signal receiving end of the traction wheel group 1 through a control module.
[0014] This solution uses a traction wheel group to roll and clamp the film, providing power for the film so that the film can pass through the cooling wheel group for double-sided cooling to improve the cooling effect, while maintaining the temperature difference range on both sides of the film to avoid unilateral stretching affecting the film quality. The guide wheel group is used to guide the film's trajectory. The film is measured in real time after passing through the cooling wheel group, and the traction speed is adjusted according to the measured temperature. If the measured temperature value is higher than the preset temperature range, the traction speed is appropriately lowered to ensure that the material belt stays on the cooling wheel group for a longer time to ensure that the expected cooling effect is achieved; at the same time, the tension sensing module monitors the tension change of the film after the speed adjustment to control the coordinated speed adjustment of the cooling wheel group and control the film tension within an appropriate range to avoid stretching of the film and affecting the quality.
[0015] The cooling wheel group 2 is provided with two cooling wheels 7, and the two cooling wheels 7 are arranged with a height difference; the guide wheel group 3 on the film inlet port side of the cooling wheel group 2 is a front guide wheel group, which is arranged higher than the lower cooling wheel 7; the guide wheel group 3 on the film outlet port side of the cooling wheel group 2 is a rear guide wheel group, which is arranged lower than the higher cooling wheel 7; after the film 4 passes through the front guide wheel group, it bypasses the lower cooling wheel 7 and the higher cooling wheel 7 in turn. When the film passes through the two cooling wheels, the contact area with the two cooling wheels is increased, thereby improving the cooling efficiency, reducing the frequency of traction speed adjustment, maintaining a relatively stable cooling state, and reducing the risk of film deformation under tension.
[0016] The traction wheel group 1 includes a driving wheel 11 and a clamping wheel 12. The clamping wheel 12 swings away from or close to the driving wheel 11. The driving wheel 11 is connected to the output end of the driving motor. The rotating shaft of the driving wheel 11 is connected to the rotating shaft of the lower cooling wheel 7 through a transmission structure. Figure 1 As shown in the figure, the traction wheel group rolls and clamps the cooled part of the film, thereby providing traction without stretching the film. The transmission structure can be driven by a pulley. When the driving wheel adjusts the rotation speed because the measured temperature is too high or far below the preset range, the low-position cooling wheel can adjust the speed synchronously to ensure that the linear speed of the cooling wheel at the tangent point to the film surface is consistent with the film traction speed.
[0017] Due to the need for double-sided cooling, the two cooling wheels rotate in opposite directions. Preferably, the high-position cooling wheel 7 is driven independently, the rotating shaft of the high-position cooling wheel 7 is connected to the output end of the driving device, and the control signal receiving end of the cooling wheel group 2 is electrically connected to the speed regulation module of the driving device.
[0018] The front guide wheel group includes two guide wheels with a vertical spacing. The film passes through the two guide wheels in sequence and contacts the wheel surfaces on both sides of the two guide wheels respectively. The tension sensing module 5 is close to the film segment between the two guide wheels. It can make a certain angle between the front and rear ends of the film passing through the tension sensor. When the tension changes, it will be converted into a load on the tension sensor, which is conducive to improving the sensitivity of tension sensing, thereby timely adjusting the rotation speed of the high-position cooling wheel, reducing the relative displacement and friction between the wheel body and the film, and avoiding stretching of the film to affect the film quality.
[0019] Preferably, the rear guide wheel group includes two guide wheels with a vertical spacing, and the film passes through the two guide wheels successively and contacts the wheel surface on the same side of the two guide wheels, so that a vertical film is formed between the two guide wheels; the temperature sensing module 6 includes two temperature sensors 61, and the two temperature sensors 61 are symmetrically arranged on both sides of the film section between the two guide wheels. The temperature of both sides of the film can be measured at the same time. If the temperature on any side is too high, the traction speed can be appropriately reduced. If the temperature on both sides is far below the preset temperature value, the traction speed can be appropriately increased.
[0020] The above are only preferred embodiments of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.
Claims
1. A film anti-stretching double-sided cooling system, characterized in that: The invention comprises a traction wheel group (1), a cooling wheel group (2) and a guide wheel group (3); the traction wheel group (1) rolls and clamps a film (4); the film (4) passes through the cooling wheel group (2) and the guide wheel group (3); the guide wheel group (3) is arranged at the film inlet and outlet ports of the cooling wheel group (2); a tension sensing module (5) is arranged on the film inlet port side of the cooling wheel group (2); a tension feedback signal output end of the tension sensing module (5) is electrically connected to a control signal receiving end of the cooling wheel group (2) through a control module; a temperature sensing module (6) is arranged on the film output port side of the cooling wheel group (2); a temperature feedback signal output end of the temperature sensing module (6) is electrically connected to the control signal receiving end of the traction wheel group (1) through a control module.
2. A film anti-stretching double-sided cooling system according to claim 1, characterized in that: The cooling wheel group (2) is provided with two cooling wheels (7), and the two cooling wheels (7) are arranged with a height difference; the guide wheel group (3) on the film inlet port side of the cooling wheel group (2) is a front guide wheel group, which is arranged higher than the lower cooling wheel (7); the guide wheel group (3) on the film outlet port side of the cooling wheel group (2) is a rear guide wheel group, which is arranged lower than the higher cooling wheel (7); after the film (4) passes through the front guide wheel group, it successively bypasses the lower cooling wheel (7) and the higher cooling wheel (7).
3. A film anti-stretching double-sided cooling system according to claim 2, characterized in that: The traction wheel group (1) comprises a driving wheel (11) and a clamping wheel (12), wherein the clamping wheel (12) swings away from or approaches the driving wheel (11), the driving wheel (11) is connected to the output end of a driving motor, and the rotating shaft of the driving wheel (11) is connected to the rotating shaft of the lower cooling wheel (7) through a transmission structure.
4. A film anti-stretching double-sided cooling system according to claim 3, characterized in that: The rotating shaft of the high-position cooling wheel (7) is connected to the output end of the driving device, and the control signal receiving end of the cooling wheel group (2) is electrically connected to the speed regulating module of the driving device.
5. A film anti-stretching double-sided cooling system according to claim 4, characterized in that: The front guide wheel group comprises two guide wheels with a vertical spacing, the film passes through the two guide wheels in sequence and contacts the opposite side wheel surfaces of the two guide wheels respectively, and the tension sensing module (5) is attached to the film section between the two guide wheels.
6. A film anti-stretching double-sided cooling system according to claim 4, characterized in that: The rear guide wheel group includes two guide wheels with a vertical spacing, the film passes through the two guide wheels in sequence and contacts the wheel surfaces on the same side of the two guide wheels, and the temperature sensing module (6) includes two temperature sensors (61), and the two temperature sensors (61) are symmetrically arranged on both sides of the film section between the two guide wheels.