Device for preventing film from rolling up
By using a film blowing box and a film pressing device in the production of plastic films, the film is prevented from retracting after breaking, and the roll accident caused by film breaking is solved, and production safety and efficiency are improved.
Patent Information
- Application Number
- CN202421042346.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-14
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-05-14
AI Technical Summary
During the production process of plastic film, the rolling accident may result in rolling accidents due to breakage in the winding part, resulting in production shutdown, increased costs and reduced efficiency.
A thin film roll roll device is designed, including a film blowing box and a film pressing device. The film blowing box blows the film to maintain its extended state through the air outlet. The film pressing device squeezes the film through the film telescopic cylinder and the rotor to prevent the return of the film. Shrink.
Effectively prevent the film from retracting after breaking, reduce the probability of roll accidents, ensure safe production and reduce the number of shutdown and maintenance times.
Smart Images
Figure CN222204261U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a device for preventing a film roller from rolling up, and belongs to the technical field of plastic film blowing machines. Background Art
[0002] During the production of plastic film, after the plastic film is formed by the film blowing part, it needs to be rolled up by the winding part. The winding part is usually a reel that rotates and rolls up, and the receipt part is provided with a feed roller and other components to ensure the normal conveying movement of the plastic film.
[0003] In actual use, after the plastic film passes through the feed roller of the winding part, it may break due to some reasons. After breaking, the plastic film will be pulled backwards, and then rolled up on the feed roller. At this time, a roll accident occurs, and the feed roller cannot work normally, and needs to be stopped for maintenance. This results in an increase in the overall cost of use and a decrease in production efficiency. Utility Model Content
[0004] The utility model aims to provide a device for preventing a film roller from rolling up, so as to solve the above technical problems.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0006] A device for preventing a film roller from rolling up comprises a frame and a film feeding roller arranged on the frame, a film blowing box is arranged corresponding to the feeding outlet of the film feeding roller, an air outlet is arranged on the surface of the film blowing box and the air outlet faces the direction of forward conveying of the film; a film pressing device is also arranged corresponding to the feeding outlet of the film feeding roller; the film pressing device comprises a film pressing frame and a film pressing rotating wheel arranged on the film pressing frame; the film pressing rotating wheel is driven to rotate by a film pressing motor arranged on the film pressing frame; the film pressing frame is driven to move up and down by a film pressing telescopic cylinder; the fixing part of the film pressing telescopic cylinder is installed on the frame; and a film feeding roller is arranged corresponding to the lower part of the film pressing rotating wheel.
[0007] A further improvement of the technical solution is that the film blowing box is located below the film feeding roller, and the air outlet of the film blowing box is obliquely upward toward the film feeding roller.
[0008] A further improvement of the technical solution is that the film blowing box is a box body with a long strip structure, and the film blowing box is connected with the air source.
[0009] A further improvement of this technical solution is that the film pressing telescopic cylinder is a hydraulic cylinder or a cylinder
[0010] Due to the adoption of the above technical solution, the technical effects achieved by the utility model are:
[0011] The utility model can play the role of a film retraction roller to prevent film breakage. First, when the film breaks, the film can be in a relatively stretched state due to the blowing effect of the film blowing box. At the same time, the film pressing device descends through the film pressing telescopic cylinder, so that the film pressing rotating wheel and the film feeding roller cooperate to squeeze the film so that the film cannot move, thereby playing the role of preventing the film from retracting.
[0012] The utility model can prevent the film roller from rolling up when the film is rolled up, thereby reducing the probability of the roller accident and ensuring safe production. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the structure of the utility model;
[0014] Among them, 1. frame, 2. film feeding roller, 3. film blowing box, 4. film pressing frame, 5. film pressing wheel, 6. film pressing motor, 7. film pressing telescopic cylinder, 8. film feeding roller, 9. air outlet, 10. air pump. DETAILED DESCRIPTION
[0015] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.
[0016] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.
[0017] The utility model relates to a device for preventing a film roller from rolling up, which is applied to a film receiving part of a film blowing machine.
[0018] The device includes a frame 1 and two film feeding rollers 2 arranged on the frame, wherein the film feeding rollers 2 are arranged opposite to each other. The finished film can be conveyed forward through the two film feeding rollers 2. The film is rolled up by the winding wheel. A film blowing box 3 is arranged at the position corresponding to the feeding outlet of the film feeding roller 2, and an air outlet 9 is arranged on the surface of the film blowing box 3, and the air outlet 9 is directed toward the direction in which the film is conveyed forward. The film is blown toward the film by the film blowing box 3, which has a certain cooling effect. At the same time, after the film breaks abnormally, the air blowing through the air outlet 9 can prevent the film from shrinking backward and causing a roller accident.
[0019] The frame and the feed roller are actually components of the winding part in the prior art.
[0020] A film pressing device is also provided at the material feeding outlet of the corresponding film feeding roller 2. By means of the film pressing device, the film is pressed when the film breaks, and further prevented from being recovered backwards and causing a roll accident.
[0021] The film pressing device includes a film pressing frame 4 and a film pressing wheel 5 arranged on the film pressing frame 4. A film pressing motor 6 is arranged on the film pressing frame 4, and the film pressing wheel 5 is arranged on the output shaft of the film pressing motor 6. The film pressing wheel 5 is driven to rotate by the film pressing motor 6. A film pressing telescopic cylinder 7 is arranged on the frame 1. The fixed part of the film pressing telescopic rod 7 is fixedly installed on the frame 1, and the telescopic end of the film pressing telescopic rod 7 is connected to the film pressing frame 4. The film pressing telescopic rod 7 can drive the film pressing frame 4 to move up and down. The film pressing frame 4 is driven to move up and down by the film pressing telescopic cylinder 7, thereby realizing the up and down movement of the film pressing wheel 5. The fixed part of the film pressing telescopic cylinder 7 is installed on the frame 1.
[0022] A film feeding roller 8 is provided below the corresponding film pressing wheel 5 and can cooperate with the film pressing wheel 5 .
[0023] In a specific implementation, the film blowing box 3 is usually located below the film feeding roller 8 , and the air outlet 9 of the film blowing box 3 is obliquely upward toward the film feeding roller 8 .
[0024] Further, such as Figure 1 As shown, the film blowing box 3 is a box body with a long strip structure, and the film blowing box 3 is connected to the air source. Figure 1 The middle film blowing box is communicated with the air pump 10 through a pipeline.
[0025] The film pressing telescopic cylinder 7 is a hydraulic cylinder or a gas cylinder.
[0026] The utility model can play the role of preventing the film from breaking and retracting the winding roller. When the film breaks, the film is in a relatively stretched state due to the blowing effect of the film blowing box. At the same time, the film pressing device can prevent the film from retracting by the film pressing rotating wheel and the film feeding roller through the descending of the film pressing telescopic cylinder.
[0027] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A device for preventing a film from rolling up, comprising a frame (1) and a film feeding roller (2) arranged on the frame, characterized in that: A film blowing box (3) is arranged at the feeding outlet of the film feeding roller (2), and an air outlet (9) is arranged on the surface of the film blowing box (3), and the air outlet (9) faces the direction of the film forward conveying; a film pressing device is also arranged at the feeding outlet of the film feeding roller (2); the film pressing device comprises a film pressing frame (4) and a film pressing wheel (5) arranged on the film pressing frame (4); the film pressing wheel (5) is driven to rotate by a film pressing motor (6) arranged on the film pressing frame (4); the film pressing frame (4) is driven to move up and down by a film pressing telescopic cylinder (7); the fixed part of the film pressing telescopic cylinder (7) is installed on the frame (1); and a film feeding roller (8) is arranged below the corresponding film pressing wheel (5).
2. The device for preventing film rolling according to claim 1, characterized in that: The film blowing box (3) is located below the film feeding roller (8), and the air outlet (9) of the film blowing box (3) is obliquely upward toward the film feeding roller (8).
3. The device for preventing film rolling according to claim 1, characterized in that: The film blowing box (3) is a box body with a long strip structure, and the film blowing box (3) is connected to the air source.
4. A device for preventing a film from rolling up according to any one of claims 1 to 3, characterized in that: The film pressing telescopic cylinder (7) is a hydraulic cylinder or a gas cylinder.