Self-checking device for film detection

Abstract

The utility model discloses a self-checking device for film detection, which relates to the technical field of film detection and comprises a self-checking frame for supporting a film, and a first fastener and a second fastener are respectively arranged at the top and the bottom of a working surface of the self-checking frame. The first fastener elastically positions the high end of the film at the high position of the working face through the movable roller, and the second fastener locks the low end of the film at the low position of the working face in a pedal mode, so that the whole film is in a tightened and stretched state. Through the arrangement of the first fastening piece and the second fastening piece, the first fastening piece elastically limits the high end of the film through the movable roller, the film can be stably pulled downwards to be within the lockable range of the second fastening piece in the process that a follow-up worker pulls the film downwards to the second fastening piece, and after locking and limiting are conducted, the film can be stably pulled downwards to be within the lockable range of the second fastening piece. And the film is in a stretched and tightened state, so that wrinkles are avoided, and subsequent accurate detection by workers is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of film detection, in particular to a self-detection device used for film detection. Background Art

[0002] Existing films can be categorized into various types based on their materials and functions. For example, conventional CPP films for paper packaging are typically made from homopolymer PP, mixed with an appropriate amount of lubricant, and then extruded in a single layer or co-extruded across multiple layers before being cast, cooled, and shaped. Finally, the cooled and shaped film undergoes corona treatment to produce the CPP film.

[0003] During the production process, after the film is wound on rollers to form a film roll, a portion of the film needs to be cut from the roll for film surface inspection and corona inspection. Among them, the film surface inspection requires the staff to hold the cut film with both hands and observe it under the light; the corona inspection requires the staff to spread the cut film flat on the workbench and then perform the corresponding inspection steps. If the film is too wide and the workbench cannot fully support it, the film needs to be folded and inspected in sections. This segmented inspection process will cause creases on the film surface, which will affect the accuracy of the inspection.

[0004] In summary, it is relatively cumbersome to perform these two tests on the film, requiring manual operation with many steps. The labor intensity of the workers is high, and the workers' continuous work for a long time is also prone to physical and visual fatigue, which makes it impossible to carefully and accurately detect and judge the film surface, which easily reduces the detection accuracy and increases the defective rate of the film product. If the film is supported and stretched by a display stand in the prior art, the workers need to operate the multiple fasteners on the display stand in sequence to fix the top and bottom of the film. Among them, for fixing the bottom of the film, the workers need to bend over many times to operate, which also increases the labor intensity of the workers. Moreover, if the fasteners are simply set as spring clips, the area that the spring clips can clamp on the film is small, and the clamping is a point contact method, wrinkles are easily generated during the clamping process, and the partial clamping of the film by multiple spring clips can easily cause the film to not be fully supported and stretched, that is, it cannot be well inspected by the workers, which is inconvenient to use.

[0005] Therefore, we propose a self-test device for thin film detection to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to solve the problems in the prior art and to propose a self-inspection device for film detection. The first fastener on the self-inspection frame can be used to elastically limit the film, and the second fastener on the self-inspection frame can be used to pedal-type lock the film, so that the film as a whole is in a taut and stretched state, so that the staff can perform inspections quickly and accurately.

[0007] In order to solve the above problems, the present invention provides the following technical solutions:

[0008] A self-inspection device for film detection includes a self-inspection frame for supporting the film, and a first fastener and a second fastener are respectively provided at the top and bottom of the working surface of the self-inspection frame. The first fastener elastically positions the high end of the film at a high position on the working surface through a movable roller, and the second fastener locks the low end of the film at a low position on the working surface in a foot-operated manner, so that the entire film is in a taut and stretched state.

[0009] As a further solution of the present invention: the first fastener includes a movable roller and a fixed roller, a through hole is opened on the self-inspection frame, the fixed roller and the movable roller are both arranged in the through hole, and the movable roller can move toward or away from the fixed roller in the vertical direction, so that a clamping area for clamping the film is formed between the movable roller and the fixed roller.

[0010] As a further solution of the present invention: a connecting rod is movably provided on the self-inspection frame, one end of the connecting rod extends into the through hole, and a movable roller is rotatably provided on the end of the connecting rod, and a first elastic member is provided on the self-inspection frame, and the first elastic member is used to make the movable roller have a moving tendency to move toward the fixed roller.

[0011] As a further solution of the present invention: the second fastener includes a support block and a pad block both of which are arranged on the self-inspection frame, and a pedal is hingedly arranged on the support block, and a second elastic member is arranged on the self-inspection frame, and the second elastic member is used to make one end of the pedal have a tendency to move toward the pad block, so that this end of the pedal can press the film against the pad block.

[0012] As a further solution of the present invention: a guide roller is provided at one end of the pedal close to the pad, so that the guide roller can flexibly press the film against the pad.

[0013] As a further solution of the present invention: it also includes a lighting component for irradiating the film on the working surface, the working surface is arranged in a vertical direction, and the lighting component includes a plurality of lamp tubes, and the plurality of lamp tubes are distributed in the middle position of the self-inspection frame.

[0014] As a further solution of the present invention: it also includes a supporting bracket for supporting the film roll, and the film on the film roll can pass through the through hole and be locked by the first fastener and the second fastener.

[0015] As a further solution of the present invention: the self-inspection frame is provided with rollers for supporting the film on the film roll.

[0016] As a further solution of the present invention: the top of the supporting roller and the top of the fixed roller are in the same plane.

[0017] As a further solution of the present invention: the first elastic member and the second elastic member are both springs.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. Through the arrangement of the first fastener and the second fastener, the first fastener elastically limits the high end of the film through a movable roller. In the process of the subsequent staff pulling the film downward to the second fastener, the movable roller elastically limits the film, and thus the film can be stably pulled downward to the locking range of the second fastener. Then the staff locks the film by foot, that is, the film at this time will be stably locked and limited by the first fastener and the second fastener. The locking and limiting process is simple and convenient, and easy to use. After locking and limiting, the film is in a stretched and taut state without leaving wrinkles, which is convenient for subsequent staff to accurately detect.

[0020] 2. Through the setting of the movable roller and the fixed roller, the clamping area formed between the movable roller and the fixed roller can uniformly limit the film. Compared with the point contact clamping method using spring clips in the prior art, the clamping method of the clamping area of ​​the utility model is line contact or surface contact, which increases the clamping contact area and can better clamp and limit the film.

[0021] 3. By setting up the supporting bracket, the wound film roll can be placed on the supporting bracket before testing. When used for testing, the film on the film roll can pass through the through hole and be locked by the first fastener and the second fastener. The setting of this supporting bracket not only makes the testing convenient, but also makes the testing work streamlined.

[0022] 4. Through the setting of the lighting part, the light tube in the lighting part can be used to illuminate the taut and stretched film, so that the staff can observe the film surface more clearly and improve the accuracy of the detection.

[0023] 5. Through the setting of the guide roller, during the process of the pedal and the pad pressing and limiting the film, the guide roller can flexibly press the film against the pad, thereby protecting the film.

[0024] 6. Through the setting of the first elastic member, the first elastic member is used to make the movable roller have a movement tendency toward the fixed roller. This movement tendency can better press and limit the film, so that the film can always remain stable and uniform during the downward pulling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] Figure 1 This is a front view structural diagram of the present utility model;

[0027] Figure 2 yes Figure 1 Schematic diagram of the local structure Figure 1 ;

[0028] Figure 3 yes Figure 1 Schematic diagram of the local structure Figure 2 ;

[0029] Figure 4 It is a side structural schematic diagram of the utility model.

[0030] In the figure: 1. Self-inspection frame; 2. Movable roller; 3. Fixed roller; 4. Through hole; 5. Connecting rod; 6. First elastic member; 7. Support block; 8. Pad; 9. Pedal; 10. Second elastic member; 11. Guide roller; 12. Lamp tube; 13. Support bracket; 14. Support roller; a. Film; b. Film roll. DETAILED DESCRIPTION

[0031] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] like Figure 1-Figure 4 The self-inspection device for film detection shown in FIG. 1 includes a self-inspection frame 1 for supporting a film a. The top and bottom of the working surface of the self-inspection frame 1 are respectively provided with a first fastener and a second fastener. Figure 1From the perspective of the working surface, the right side of the self-inspection frame 1; wherein, the first fastener elastically positions the high end of the film a at the high position of the working surface, and the second fastener locks the low end of the film a at the low position of the working surface by foot-operation, so that the film a as a whole is in a tight and stretched state. During this operation, the first fastener is first used to elastically position the film a at the high position of the working surface, and then the staff member holds the film a with both hands and pulls it downward until the film a is within the lockable range of the second fastener. Then the staff member locks the film a by foot-operation, that is, at this time, the film a will be stably locked and limited by the first fastener and the second fastener. The locking and limiting process is simple and convenient, easy to use, and after locking and limiting, the film a is in a stretched and tight state without leaving wrinkles, which is convenient for subsequent staff to accurately detect.

[0033] like Figure 1-Figure 2 As shown, the first fastener described above includes a movable roller 2 and a fixed roller 3. A through-hole 4 is provided in the self-inspection frame 1. Both the fixed roller 3 and the movable roller 2 are positioned within the through-hole 4. The movable roller 2 can move vertically toward or away from the fixed roller 3, thereby forming a clamping zone between the movable roller 2 and the fixed roller 3 for clamping the film A. During use, a worker can first pass one end of the film A through the movable roller 2 and the fixed roller 3, where it is pressed and positioned. The worker can then pull the film A downward. During this pulling process, the clamping zone formed by the locking of the movable roller 2 and the fixed roller 3 limits the movement of the film A, ensuring that the film A remains stable during the pulling process and does not produce any tear marks.

[0034] like Figure 2 As shown, in the case where only the movable roller 2 and the fixed roller 3 are provided, the movable roller 2 relies on its own weight to compress and position the film a. When the staff pulls the film a with great force, the movable roller 2 is likely to jump, thereby reducing the compression and position control effect of the film a. To this end, a connecting rod 5 can be movably provided on the self-inspection frame 1. One end of the connecting rod 5 extends into the through hole 4, and the movable roller 2 is rotatably provided on this end of the connecting rod 5. The self-inspection frame 1 is provided with a first elastic member 6, and the first elastic member 6 is used to cause the movable roller 2 to have a movement tendency toward the fixed roller 3. This movement tendency can better compress and position the film a, so that the film a can always remain stable and uniform during the downward pulling process. Preferably, the first elastic member 6 is a spring.

[0035] like Figure 1 and Figure 3As shown, regarding the arrangement of the second fastener described above, the second fastener includes a support block 7 and a pad 8, both of which are arranged on the self-inspection frame 1, and a pedal 9 is hingedly provided on the support block 7. A second elastic member 10 is provided on the self-inspection frame 1, and the second elastic member 10 is used to make one end of the pedal 9 have a tendency to move toward the pad 8, so that the end of the pedal 9 can press the film a against the pad 8. This pressing can make the film a as a whole taut and stretched, that is, the high end of the film a is pressed and limited by the movable roller 2 and the fixed roller 3, and the low end of the film a is pressed and limited by the pedal 9 and the pad 8. Preferably, the second elastic member 10 is a spring.

[0036] like Figure 3-Figure 4 As shown, during the process of the pedal 9 and the pad 8 pressing and limiting the film a, in order to prevent the film a from being damaged due to excessive pressing and limiting force, a guide roller 11 can be provided at one end of the pedal 9 close to the pad 8, so that the guide roller 11 can flexibly press the film a against the pad 8. It should be noted that the guide roller 11 is made of a flexible material such as rubber.

[0037] like Figure 4 As shown, in order to facilitate the staff to observe the film a more conveniently, the present invention also includes a lighting component for illuminating the film a on the working surface. Preferably, the working surface is arranged vertically, and the lighting component includes multiple lamp tubes 12, and the multiple lamp tubes 12 are evenly distributed in the middle of the self-inspection frame 1. The color tone of the lamp tubes 12 can be selected according to actual conditions.

[0038] For example Figure 1-Figure 2 As shown, to facilitate testing and streamline the testing process, the present invention also includes a support bracket 13 for supporting the film roll b. Before testing, the wound film roll b can be placed on the support bracket 13. During testing, the film a on the film roll b can pass through the through-hole 4 and be locked by the first and second fasteners. Furthermore, the self-test frame 1 is provided with a roller 14 for supporting the film a on the film roll b. The top of the roller 14 is in the same plane as the top of the fixed roller 3.

[0039] The above describes an embodiment of the present invention in detail. However, the above content is only a preferred embodiment of the present invention and should not be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent application of the present invention.

Claims

1. A self-test device for thin film detection, characterized in that: The invention comprises a self-inspection frame (1) for supporting a film (a), wherein a first fastener and a second fastener are respectively provided at the top and bottom of a working surface of the self-inspection frame (1), wherein the first fastener elastically positions the upper end of the film (a) at a high position on the working surface via a movable roller (2), and the second fastener locks the lower end of the film (a) at a low position on the working surface in a foot-operated manner, so that the film (a) as a whole is in a taut and stretched state.

2. A self-testing device for thin film detection according to claim 1, characterized in that: The first fastener comprises a movable roller (2) and a fixed roller (3); a through hole (4) is provided on the self-inspection frame (1); the fixed roller (3) and the movable roller (2) are both arranged in the through hole (4); and the movable roller (2) can move toward or away from the fixed roller (3) in a vertical direction, so that a clamping area for clamping the film (a) is formed between the movable roller (2) and the fixed roller (3).

3. A self-testing device for thin film detection according to claim 2, characterized in that: A connecting rod (5) is movably provided on the self-inspection frame (1), one end of the connecting rod (5) extends into the through hole (4), and the movable roller (2) is rotatably provided on the end of the connecting rod (5). A first elastic member (6) is provided on the self-inspection frame (1), and the first elastic member (6) is used to make the movable roller (2) have a tendency to move toward the fixed roller (3).

4. A self-testing device for thin film detection according to claim 3, characterized in that: The second fastener comprises a support block (7) and a cushion block (8) both of which are arranged on the self-inspection frame (1), and a pedal (9) is hingedly arranged on the support block (7). A second elastic member (10) is arranged on the self-inspection frame (1), and the second elastic member (10) is used to make one end of the pedal (9) have a tendency to move toward the cushion block (8) so that the end of the pedal (9) can press the film (a) against the cushion block (8).

5. The self-test device for thin film detection according to claim 4, characterized in that: A guide roller (11) is provided at one end of the pedal (9) close to the pad (8), so that the guide roller (11) can flexibly press the film (a) against the pad (8).

6. A self-testing device for thin film detection according to any one of claims 1 to 5, characterized in that: It also includes a lighting component for illuminating the film (a) on the working surface, the working surface is arranged in a vertical direction, and the lighting component includes a plurality of lamp tubes (12), and the plurality of lamp tubes (12) are evenly distributed in the middle position of the self-inspection frame (1).

7. A self-testing device for thin film detection according to any one of claims 2 to 5, characterized in that: It also includes a supporting bracket (13) for supporting the film roll (b), and the film (a) on the film roll (b) can pass through the through hole (4) and be locked by the first fastener and the second fastener.

8. The self-testing device for thin film testing according to claim 7, characterized in that: The self-inspection frame (1) is provided with a roller (14) for supporting the film (a) on the film roll (b).

9. The self-testing device for thin film testing according to claim 8, characterized in that: The top of the supporting roller (14) and the top of the fixed roller (3) are in the same plane.

10. A self-testing device for thin film testing according to claim 4 or 5, characterized in that: The first elastic member (6) and the second elastic member (10) are both springs.

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