Device for improving wrinkles of rolled base film
By using a stepper motor-driven cutting module and guide rollers, the problem of bottom wrinkles in the base film during the winding process was solved, achieving smooth winding and high-quality coating of the base film.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-04-03
AI Technical Summary
The base film is prone to bottom wrinkles during the winding process, which can lead to the base film being wrinkled and scrapped during the coating process.
The cutting module and guide rollers driven by stepper motors achieve smooth winding of the base film through a single cut, avoiding wrinkles caused by lateral cutting, and the guide rollers guide the direction of the base film.
It effectively reduces wrinkles in the base film during the winding process, prevents the base film from being scrapped due to wrinkles during the coating process, and improves the winding quality.
Smart Images

Figure CN224076678U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of base film winding equipment technology, and in particular to a device for improving the wrinkles of wound base film. Background Technology
[0002] Currently, the basic method used in the industry for cutting diaphragms is as follows: once the required length is reached, a motor drives a turntable, and two winding shafts rotate. The film is then cut using an air knife on one side. Because the air knife cuts from one side, during winding, one side of the film adheres to the winding shaft first, and the other side adheres to it later. This causes bottom wrinkles to appear on the film during winding. As the length of the winding increases, the bottom wrinkles become more severe, resulting in wrinkles and scrapping of the base film during the coating process. Summary of the Invention
[0003] In view of this, the purpose of this utility model is to provide a device for improving the wrinkling of the base film during winding, so as to solve the problem of bottom wrinkles in the base film during the winding process.
[0004] To achieve the above objectives, this utility model provides a device for improving the wrinkles of a wound base film, comprising: a mounting frame; a rotating disk disposed on the mounting frame; a large drive motor disposed on the mounting frame, the output shaft of which is poweredly connected to the rotating disk; two small drive motors disposed on the rotating disk; two rolling shafts disposed on the output shafts of the two small drive motors respectively; a collecting roller disposed on the rolling shafts for winding the base film; and a cutting module disposed on the mounting frame, located above the center position of the rotating disk.
[0005] As a further improvement to this application, the large drive motor is a stepper motor.
[0006] As a further improvement to this application, the small drive motor is a stepper motor.
[0007] As a further improvement of this application, the cutting module includes a cutting motor mounted on the mounting bracket, a cutting blade mounted on the mounting bracket, a drive disk mounted on the cutting motor, and a drive rod connecting the cutting blade and the drive disk; the drive disk is mounted on the output shaft of the cutting motor; one end of the cutting blade is movably connected to the mounting bracket via a rotating shaft, and the cutting blade has a degree of freedom to rotate around the rotating shaft; both ends of the drive rod are movably connected to the cutting blade and the drive disk respectively via pins.
[0008] As a further improvement of this application, the mounting frame is also provided with a guide roller for guiding the base film.
[0009] The beneficial effects of this utility model are: by cutting once by the cutting module and then taking turns with the two collecting rollers, the generation of too many wrinkles is avoided, which effectively prevents the base film from developing bottom wrinkles during the winding process. Attached Figure Description
[0010] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0011] Figure 1 This is a schematic diagram of the structure of a device for improving wrinkles in a wound base film during cutting, according to an embodiment of the present invention.
[0012] Figure 2 This is a schematic diagram of the structure of a device for improving wrinkles in a wound base film during normal operation, according to an embodiment of the present invention.
[0013] Figure 3 This is a schematic diagram of the cutting module of a device for improving wrinkles in the winding base film according to an embodiment of the present invention.
[0014] The diagram is marked as follows:
[0015] 1. Mounting frame; 2. Rotating disc; 3. Large drive motor; 4. Small drive motor; 5. Rolling shaft; 6. Collecting roller; 71. Cutting motor; 72. Cutting blade; 73. Drive disc; 74. Drive rod; 8. Guide roller. Detailed Implementation
[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.
[0017] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0018] like Figure 1-3 As shown, an apparatus for improving wrinkles in wound base film includes a mounting frame 1; a rotating disk 2 disposed on the mounting frame 1; a large drive motor 3 disposed on the mounting frame 1, its output shaft being poweredly connected to the rotating disk 2; two small drive motors 4 disposed on the rotating disk 2; two rolling shafts 5 respectively disposed on the output shafts of the two small drive motors 4; a collecting roller 6 disposed on the rolling shafts 5 for winding the base film; and a cutting module disposed on the mounting frame 1, located above the center position of the rotating disk 2.
[0019] To enable seamless start-up, stopping, and maintenance, the large drive motor 3 is a stepper motor. When the cutting module begins cutting the base film, the large drive motor 3 drives the unwound collecting roller 6 to move towards the material inlet direction of the winding collecting roller 6, preparing for material collection. Simultaneously, the rolling shaft 5 containing the unwound collecting roller 6 starts running to facilitate collection. When the cutting module begins cutting the base film, the unwound collecting roller 6 contacts the base film and begins winding, completing the handover between the different collecting rollers 6 before and after cutting.
[0020] In order to be able to start, stop and maintain the state at any time, the small drive motor 4 is a stepper motor.
[0021] The cutting module includes a cutting motor 71 mounted on the mounting frame 1, a cutting blade 72 mounted on the mounting frame 1, a drive disk 73 mounted on the cutting motor 71, and a drive rod 74 connecting the cutting blade 72 and the drive disk 73. The drive disk 73 is mounted on the output shaft of the cutting motor 71. One end of the cutting blade 72 is movably connected to the mounting frame 1 via a rotating shaft, and the cutting blade 72 has a degree of freedom to rotate around the rotating shaft. Both ends of the drive rod 74 are movably connected to the cutting blade 72 and the drive disk 73 respectively via pins. When the cutting motor 71 rotates, it drives the drive disk 73 to rotate, which in turn drives the cutting blade 72 to swing back and forth around the rotating shaft via the drive rod 74. The cutting edge of the cutting blade 72 is located at the bottom and contacts the base film to complete the cutting action. The rapid top-to-bottom cutting by the cutting blade 72 effectively reduces the formation of base film wrinkles caused by lateral cutting.
[0022] To further guide the direction of the base film, the mounting frame 1 is also equipped with a guide roller 8, which is used to guide the base film. The guidance of the guide roller 8 further improves the wrinkle removal effect.
[0023] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.
[0024] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. An apparatus for improving the creasing of a wound base film, characterized by The utility model relates to a kind of cutting device for film cutting machine, including Mounting frame (1); Rotary disc (2) is arranged on the mounting frame (1); Large drive motor (3) is arranged on the mounting frame (1), and the output shaft of the rotary disc (2) is power connected; Two small drive motors (4) are arranged on the rotary disc (2); Two rolling shafts (5) are respectively arranged on the output shaft of two small drive motors (4); Collecting cylinder (6) is arranged on the rolling shaft (5), and is used to wind base film; Cutting module is arranged on the mounting frame (1), and is located above the center position of the rotary disc (2); The cutting module includes cutting motor (71) arranged on the mounting frame (1), cutting knife (72) arranged on the mounting frame (1), drive disc (73) arranged on the cutting motor (71) and drive rod (74) connecting the cutting knife (72) and the drive disc (73); The drive disc (73) is arranged on the output shaft of the cutting motor (71); One end of the cutting knife (72) is movably connected with the mounting frame (1) by rotating shaft, and the cutting knife (72) has the freedom of rotation around the rotating shaft; Two ends of the drive rod (74) are movably connected with the cutting knife (72) and the drive disc (73) by pin shaft respectively.
2. The apparatus for improving wrinkles of a rolled base film according to claim 1, wherein The large drive motor (3) is a stepper motor.
3. The apparatus for improving wrinkles of a rolled base film according to claim 1, wherein The small drive motor (4) is a stepper motor.
4. The apparatus for improving wrinkles of a rolled base film according to claim 1, wherein The mounting frame (1) is further provided with a guide roller (8), and the guide roller (8) is used to guide the base film.