Film edge positioning device
Through the photoelectric sensor and alarm system of the film edge positioning device, the problem of film edge offset during the winding and unwinding process is solved, real-time detection and correction are achieved, and the efficiency and quality of film production are improved.
Patent Information
- Application Number
- CN202422498834.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-15
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-10-15
AI Technical Summary
During the film production process, the edges of the film are easily offset during the rolling and unwinding process, resulting in uneven interfaces, affecting product quality and reducing production efficiency. It is difficult for the prior art to achieve real-time positioning and correction.
The film edge positioning device is adopted, including a first roller body, a second roller body, a photoelectric sensor, an amplifier, an alarm and a signal processing unit. The film edge offset is detected by the photoelectric sensor. The alarm emits an alarm when the offset exceeds the range, and the signal processing unit displays the offset.
Real-time positioning detection of film edges is realized to ensure the flat interface of the film, improve production efficiency and product quality, and avoid quality problems caused by offset.
Smart Images
Figure CN223254494U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a positioning device, in particular to a film edge positioning device. Background Art
[0002] During the PET film production process, the film's edges can shift and misalign during winding and unwinding due to positional fluctuations, tilted angles, or vibrational offsets of guide rollers. This can cause an uneven film interface, impacting product quality and even the next processing step. Manually measuring the film's edge during high-speed winding and unwinding is difficult. If measurement is required, production must be stopped on-site. If the film's edge offset exceeds a predetermined value, the film must be corrected. If the offset is within the predetermined range, the winding and unwinding process must be restarted, consuming significant time and effort, significantly reducing winding and unwinding efficiency. Utility Model Content
[0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. To this end, the present invention provides a film edge positioning device.
[0004] The technical solution adopted by the utility model to solve the technical problem is: a film edge positioning device, including a first roller body, a second roller body, a photoelectric sensor, an amplifier, an alarm, a signal processing unit and a display;
[0005] A film is provided between the first roller and the second roller, and the film between the first roller and the second roller always maintains tension; the first roller is a winding roller or an unwinding roller, and the second roller is an unwinding roller or a winding roller or a pressing roller;
[0006] A photoelectric sensor is provided on one side of the film between the first roller and the second roller. The photoelectric sensor is connected to an amplifier, the amplifier is connected to a signal processing unit, and the signal processing unit is also connected to an alarm and a display respectively.
[0007] In a preferred embodiment of the present invention, the first roller is a winding roller, the second roller is an unwinding roller or the first roller is an unwinding roller, the second roller is a winding roller or the first roller is a winding roller, the second roller is a pressure roller or the first roller is an unwinding roller, the second roller is a pressure roller.
[0008] In a preferred embodiment of the present invention, the first roller and the second roller are both arranged horizontally.
[0009] In a preferred embodiment of the present invention, a start switch is provided on the signal processing unit.
[0010] In a preferred embodiment of the present invention, the photoelectric sensor is arranged on a bracket via a universal joint, and the bracket is arranged on a fixing rod.
[0011] In a preferred embodiment of the present invention, the photoelectric sensor takes the position of the correct edge of the film as position 0, and the signal processing unit sets the photoelectric sensor to allow the film to move within a range of plus or minus 0.5-1 mm.
[0012] In a preferred embodiment of the present invention, the photoelectric sensor is a through-beam photoelectric sensor.
[0013] The beneficial effects of the present invention are as follows: the film edge positioning device of the present invention is used for real-time positioning detection of the edge of the film during the film winding or unwinding process; if the film deviation is within a predetermined range, the alarm does not sound an alarm, and the film winding and unwinding are carried out normally; when the film deviation exceeds the predetermined range, the alarm sounds an alarm, and the product deviation problem can be found in time according to the deviation range, thereby ensuring that the interface of the film is flat during the film winding or unwinding process, thereby ensuring the product quality of the film. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the structure of the utility model;
[0015] Figure 2 This is a schematic diagram of the photoelectric sensor located on one side of the film;
[0016] In the figure: a first roller body 1; a second roller body 2; a photoelectric sensor 3; an amplifier 4; an alarm 5; a signal processing unit 6; a display 7; a start switch 8; a universal joint 9; a bracket 10; a fixing rod 11; and a film 12. DETAILED DESCRIPTION
[0017] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be understood as limiting the present invention.
[0018] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like, indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and 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 direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.
[0019] like Figure 1 and Figure 2 A film edge positioning device shown includes a first roller 1, a second roller 2, a photoelectric sensor 3, an amplifier 4, an alarm 5, a signal processing unit 6 and a display 7;
[0020] A film 12 is provided between the first roller 1 and the second roller 2, and the film 12 between the first roller 1 and the second roller 2 always maintains tension; the first roller 1 is a winding roller or an unwinding roller, and the second roller 2 is an unwinding roller or a winding roller or a pressure roller;
[0021] A photoelectric sensor 3 is provided on one side of the film 12 between the first roller 1 and the second roller 2. The photoelectric sensor 3 is connected to an amplifier 4, the amplifier 4 is connected to a signal processing unit 6, and the signal processing unit 6 is also connected to an alarm 5 and a display 7 respectively.
[0022] In the specific use of the film edge positioning device of the present application, the first roller 1 is a winding roller or an unwinding roller, and the second roller 2 is an unwinding roller or a winding roller or a pressure roller. Specifically, the following situations can be classified: the first roller 1 is a winding roller, the second roller 2 is an unwinding roller, or the first roller 1 is an unwinding roller, the second roller 2 is a winding roller, or the first roller 1 is a winding roller, the second roller 2 is a pressure roller, or the first roller 1 is an unwinding roller, the second roller 2 is a pressure roller. That is, the film between the first roller 1 and the second roller 2 is always kept in tension. Then, a photoelectric sensor 3 is set on one side of the film 12. In the present application, the photoelectric sensor 3 takes the position of the correct edge of the film 12 as the zero position, and the amplifier 4 is used to set the deviation range of the film 12 during movement to plus or minus 0.5-1 mm. When the film 12 is wound or unwound at high speed, if the edge position of the film 12 deviates from or approaches the photoelectric sensor 3 within a predetermined range, the alarm 5 will not sound. If the edge position of the film 12 deviates from or approaches the photoelectric sensor 3 beyond the predetermined range, the alarm will sound. For example, when the edge position of the film 12 deviates by more than 1 mm toward or away from the photoelectric sensor 3, the photoelectric sensor 3 transmits the detection signal to the amplifier 4, and the amplifier 4 amplifies the signal collected by the photoelectric sensor 3 and transmits it to the signal processing unit 6. The signal processing unit 6 drives the alarm 5 to sound an alarm, and the signal processing unit 6 also transmits the information collected by the photoelectric sensor 3 to the display screen 7 for display, reminding the staff to correct the film 12 to ensure the consistency of the edge position of the film 12 when the film 12 is wound and unwound, to ensure the flatness of the interface of the film 12, and thus to ensure the product quality of the film 12.
[0023] The film edge positioning device of the present invention is used to perform real-time positioning detection on the edge of the film during the film winding or unwinding process. If the film deviation is within a predetermined range, the alarm will not sound an alarm, and the film winding and unwinding will proceed normally. When the film deviation exceeds the predetermined range, the alarm will sound an alarm. The product deviation problem can be found in time according to the deviation range, thereby ensuring that the interface of the film is flat during the film winding or unwinding process, thereby ensuring the product quality of the film.
[0024] As a preferred embodiment, the first roller 1 and the second roller 2 in the present application are both arranged horizontally to facilitate the smoothness of the film 12 when it is rolled up.
[0025] The signal processing unit 6 is provided with a start switch 8, which can be used to control the on / off of the signal processing unit 6. When the start switch 8 is on, the signal processing unit 6 connects to the amplifier 4, the alarm 5, and the display 7. At this time, the photoelectric sensor 3 can normally monitor the edge of the film 12. The display 7 monitors the deviation of the film edge, thereby improving the accuracy of the film edge positioning and the quality of the film during winding and unwinding. When the edge positioning of the film 12 is no longer required, the start switch 8 is turned off, and the connection between the signal processing unit 6 and the amplifier 4 is disconnected. At this time, the photoelectric sensor 3 cannot transmit the detection signal to the signal processing unit 6, and the alarm 5 cannot be activated to sound an alarm.
[0026] As a preferred embodiment, the photoelectric sensor 3 in the present application is set on the bracket 10 through the universal joint 9, which facilitates the rotation of the photoelectric sensor 3 through the universal joint 9, so as to improve the adaptability of the photoelectric sensor 3 to film detection; the bracket 10 is set on the fixed rod 11, and the support of the bracket 10 is achieved through the fixed rod 11, thereby achieving support for the photoelectric sensor 3.
[0027] The photoelectric sensor 3 in the present application is a through-beam photoelectric sensor, which has low environmental requirements and can achieve stable target detection.
[0028] The film edge positioning device of the present invention is designed to theoretically maintain a fixed distance between the photoelectric sensor 3 and the edge of the film 12 during film winding and unwinding. This distance is measured and set to position 0 in the amplifier 4. At this point, the film deviation range is set in the amplifier 4, and the correct edge position of the film 12 is at position 0. When the film is deflected, the real-time deviation from position 0 is displayed. The start switch 8 of the signal processing unit 6 is turned on to activate the detection device. When the photoelectric sensor 3 detects that the film deviation distance exceeds the set range, the alarm 5 sounds an audible alarm, indicating abnormal film deviation. This device achieves the function of real-time film edge positioning, effectively detecting whether the film edge deviation meets the requirements, and effectively avoiding substandard quality problems caused by winding slip film.
[0029] Throughout this specification, references to terms such as "one embodiment," "certain embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" indicate that a specific feature, structure, material, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative uses of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
[0030] In summary, although the present invention has been disclosed above with reference to preferred embodiments, the above preferred embodiments are not intended to limit the present invention. A person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope defined in the claims.
Claims
1. A film edge positioning device, characterized in that: It comprises a first roller body (1), a second roller body (2), a photoelectric sensor (3), an amplifier (4), an alarm (5), a signal processing unit (6) and a display (7); A film (12) is provided between the first roller (1) and the second roller (2), and the film (12) between the first roller (1) and the second roller (2) always maintains tension; the first roller (1) is a winding roller or an unwinding roller, and the second roller (2) is an unwinding roller or a winding roller or a pressure roller; A photoelectric sensor (3) is provided on one side of the film (12) between the first roller (1) and the second roller (2); the photoelectric sensor (3) is connected to an amplifier (4); the amplifier (4) is connected to a signal processing unit (6); and the signal processing unit (6) is also connected to an alarm (5) and a display (7), respectively.
2. The film edge positioning device according to claim 1, characterized in that: The first roller body (1) is a winding roller, the second roller body (2) is an unwinding roller, or the first roller body (1) is an unwinding roller, the second roller body (2) is a winding roller, or the first roller body (1) is a winding roller, the second roller body (2) is a pressing roller, or the first roller body (1) is an unwinding roller, the second roller body (2) is a pressing roller.
3. The film edge positioning device according to claim 2, characterized in that: The first roller body (1) and the second roller body (2) are both arranged horizontally.
4. The film edge positioning device according to claim 1, characterized in that: The signal processing unit (6) is provided with a start switch (8).
5. The film edge positioning device according to claim 1, characterized in that: The photoelectric sensor (3) is arranged on a bracket (10) via a universal joint (9), and the bracket (10) is arranged on a fixing rod (11).
6. The film edge positioning device according to claim 5, characterized in that: The photoelectric sensor (3) takes the position of the correct edge of the film as the 0 position, and sets the photoelectric sensor (3) to allow the film to move within a range of plus or minus 0.5-1 mm through the signal processing unit (6).
7. The film edge positioning device according to any one of claims 1 to 6, characterized in that: The photoelectric sensor (3) is a through-beam photoelectric sensor.