Perforating device for protective film production

Abstract

The utility model discloses a punching device for protective film production, and belongs to the technical field of protective film production devices. The punching device mainly comprises a pinwheel and a flexible pressing wheel which are arranged up and down, the pinwheel and the flexible pressing wheel are rotationally connected with a supporting base, punching needles which are regularly distributed are arranged on the outer side wall of the pinwheel, and the ends, away from the pinwheel, of the punching needles are tightly matched with the flexible pressing wheel; a first transmission wheel is coaxially arranged on the flexible pressing wheel, a second transmission wheel is coaxially arranged on the pinwheel, and the second transmission wheel drives the first transmission wheel to rotate oppositely and reversely. According to the punching device, the pinwheel and the flexible pressing wheel are matched to punch a protective film, so that holes in the protective film are consistent in size, the height of the pinwheel and the height of the flexible pressing wheel are adjusted by adjusting the height of the first sliding bearing seat and the height of the second sliding bearing seat, and then the punching size is flexibly adjusted. The protective film punching device is mainly used for punching the protective film.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of protective film production device, specifically, especially relates to a punching device for protective film production. BACKGROUND

[0002] The surface protective film is mainly attached to the surface of the protected substrate during use, and the purpose is to prevent the surface of the substrate from being scratched, contaminated and corroded during processing, transportation, storage and use, and the specific protection is the surface of various plastic plates, wood plates, stainless steel plates and aluminum alloy materials. In order to better adhere to the protected substrate, the protective film needs to be coated with an appropriate amount of adhesive on the surface of the protective film. The composition of the adhesive mainly includes natural high molecular compound, synthetic high molecular compound and inorganic compound. When the protective film is attached to the surface of the substrate, the size of the air bubble between the substrate and the protective film is not uniform due to different production methods. The air bubble makes the protective film unable to adhere to the substrate, which seriously affects the protection effect of the protective film. Therefore, a punching device is needed to produce a protective film with small holes that can timely discharge air bubbles.

[0003] The Chinese patent with the authorized announcement number "CN219075886U" discloses a film punching device, which comprises a rack, a punching mechanism, a film supporting mechanism, a fixing frame, a first linear cylinder, a punching needle, a telescopic extrusion assembly, a supporting frame, a second linear cylinder, a supporting plate and a pinhole. The supporting frame is driven upward by the second linear cylinder, and then the punching needle and the telescopic extrusion assembly are driven downward by the first linear cylinder. The telescopic extrusion assembly and the supporting frame clamp the film first and prevent the film from moving and deforming. At this time, the punching needle continues to drop into the corresponding pinhole through the movement of the first linear cylinder to realize punching. The telescopic extrusion assembly is slidably arranged outside the punching needle and can be retracted outside the punching needle without affecting the clamping of the film by the supporting frame and the telescopic extrusion assembly. After punching is completed, the telescopic extrusion assembly is reset.

[0004] Although the above-mentioned punching device solves the problem of film displacement and deformation through the telescopic extrusion assembly and the supporting frame, it still has the following disadvantages during use: 1. The punching is performed through the lifting of the linear cylinder, and the punching efficiency is low; 2. The hole diameter of the punching cannot be quickly adjusted, and different punching needles need to be replaced to change the hole diameter, which has poor flexibility; 3. The punching distance is not easy to control, which leads to poor uniformity of the punching on the protective film. If the local punching is too much, it will cause local concave-convex deformation of the protective film, affecting the product quality. UTILITY MODEL CONTENTS

[0005] The utility model wants to solve the technical problem: overcome the prior art's insufficient, provide a kind of punching device for protective film production, it is the punching of protective film by needle wheel and flexible pressure wheel cooperation, so that the hole size on protective film is consistent, and by adjusting the height of sliding bearing seat one and sliding bearing seat two, the height adjustment of needle wheel and flexible pressure wheel is realized, and then the flexible adjustment of punching size is realized.

[0006] The punching device for protective film production, including needle wheel and flexible pressure wheel arranged up and down, needle wheel and flexible pressure wheel are rotatably connected with support seat respectively, the outer side wall of needle wheel is equipped with the punching needle of regular distribution, and the end, away from needle wheel, of punching needle is closely matched with flexible pressure wheel.

[0007] Preferably, the flexible pressure wheel is provided with a coaxially arranged transmission wheel one, and the needle wheel is provided with a coaxially arranged transmission wheel two, and the transmission wheel two drives the transmission wheel one to rotate in opposite directions.

[0008] Preferably, the transmission wheel two and the transmission wheel one are both gears, and the two gears are of the same size and mesh with each other.

[0009] Preferably, the support seat is two, and the two support seats are arranged at the two ends of the needle wheel and the flexible pressure wheel respectively, the sliding bearing seat one and the sliding bearing seat two are slidably connected in the support seat, the upper part of the support seat is fixedly connected with the telescopic mechanism, the extending end of the telescopic mechanism is movably connected with the sliding bearing seat two, the bottom of the support seat is provided with an adjusting hand wheel and a threaded rod, the adjusting hand wheel is fixedly connected with one end of the threaded rod, the threaded rod is threadedly connected with the bottom of the support seat, and the other end of the threaded rod is movably connected with the sliding bearing seat one, the two ends of the needle wheel are connected with the sliding bearing seat two, and the two ends of the flexible pressure wheel are connected with the sliding bearing seat one.

[0010] Preferably, the support seat is fixedly connected with a guide rail, and the sliding bearing seat one and the sliding bearing seat two are respectively provided with a sliding groove matched with the guide rail.

[0011] Preferably, the sliding bearing seat one is provided with a mounting hole, the threaded rod passes through the mounting hole, the threaded rod is gap matched with the mounting hole, and the threaded rod at the two ends of the mounting hole is respectively provided with a limiting nut.

[0012] Preferably, the punching needle is in conical or circular truncated cone structure.

[0013] Preferably, the support seat is fixedly connected with a protective cover for protecting the punching needle.

[0014] Preferably, the needle wheel is internally provided with a circulating channel capable of being communicated with a heat medium.

[0015] Preferably, it further includes a rack, and the support seat is fixedly connected with a connecting groove, and the side, away from the support seat, of the connecting groove is fixedly connected with the rack.

[0016] Compared with the prior art, the utility model has the beneficial effects that:

[0017] 1、 The utility model discloses a needle wheel and flexible pressure wheel cooperation carry out the punching of protection film, and the punching needle on the needle wheel can penetrate protection film in the process of needle wheel rotation, and the flexible pressure wheel has the effect of assisting protection film to unfold on one hand, and the ductility of protection film is greatly improved, and the protection film can be supported and limited on the other hand, avoids the downward movement of protection film in the punching process, and simultaneously, prevents the protection film from being pulled when punching, causes local concave-convex deformation, and the size of the hole on the protection film is made consistent through the cooperation of the needle wheel and the flexible pressure wheel.

[0018] 2、Add position -adjustable sliding bearing seat no. 1 and sliding bearing seat no. 2, realize the height adjustment of needle wheel and flexible pressure wheel through the height adjustment of sliding bearing seat no. 1 and sliding bearing seat no. 2, then realize the flexible adjustment of punching size, and the punching needle is regularly distributed on the needle wheel, realizes the regular distribution of the small hole of the film surface of protection film.

[0019] 3、The utility model discloses a support seat, sliding bearing seat no. 1, sliding bearing seat no. 2, telescopic mechanism and adjusting hand wheel that are symmetrically arranged on both sides, guarantee the bilateral balance of needle wheel and flexible pressure wheel after adjustment, so that the size of the small hole of the film surface is consistent, and the winding uniformity is good, and the winding size head and the three -dimensional difference are not appeared and so on. DRAWINGS

[0020] Figure 1 It is the whole structure schematic diagram of the utility model;

[0021] Figure 2 It is the internal structure schematic diagram of the utility model;

[0022] Figure 3 It is the installation schematic diagram of sliding bearing seat no. 1 and sliding bearing seat no. 2;

[0023] Figure 4 It is the use state reference drawing of the utility model;

[0024] Figure 5 It is the side schematic drawing of the use state of the utility model.

[0025] In the drawing, 1, needle wheel;101, punching needle;102, protective cover;2, flexible pressure wheel;3, transmission wheel no. 1;4, transmission wheel no. 2;5, sliding bearing seat no. 1;501, threaded rod;6, adjusting hand wheel;7, sliding bearing seat no. 2;8, telescopic mechanism;9, connecting groove;10, rack;11, support seat;1101, guide rail;12, protection film. DETAILED DESCRIPTION

[0026] The utility model will be further described in connection with the drawings:

[0027] The directional terms used in the detailed description paragraphs are only for the convenience of those skilled in the art to understand the technical solutions described in this application based on the visual orientation shown in the accompanying drawings. Unless otherwise expressly specified and limited, the terms "setting," "installation," "connection," etc., should be interpreted broadly, and those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] Example 1:

[0029] like Figure 2 As shown, a punching device for producing protective film includes a needle wheel 1 and a flexible pressure roller 2 arranged vertically. In use, the protective film 12 passes between the needle wheel 1 and the flexible pressure roller 2. The outer wall of the needle wheel 1 is provided with regularly distributed punching needles 101, that is, the outer wall of the needle wheel 1 is provided with multiple sets of punching groups distributed at equal intervals, and each set of punching groups includes multiple punching needles 101 evenly distributed in the circumferential direction.

[0030] The needle wheel 1 and the punching needle 101 are made of metal. The punching needle 101 punches holes in the protective film 12. The punching needle 101 is in close contact with the flexible pressure roller 2. The flexible pressure roller 2 has a metal drive shaft in the middle and a flexible buffer layer on the outside. The flexible buffer layer is preferably made of rubber. The two ends of the needle wheel 1 and the flexible pressure roller 2 are rotatably connected to the support base 11 through coaxially arranged drive shafts.

[0031] The flexible pressure roller 2 is equipped with a coaxially arranged transmission wheel 3, and the needle wheel 1 is equipped with a coaxially arranged transmission wheel 4. In this embodiment, both the transmission wheel 4 and the transmission wheel 3 are gears, and the two gears are of equal size and mesh with each other. The transmission wheel 4 can drive the transmission wheel 3 to rotate synchronously in opposite directions, which can assist the protective film 12 in advancing and synchronously punching holes.

[0032] During manufacturing, the punching needle 101 is conical or frustum-shaped with a smaller diameter at the front end. That is, the larger diameter end of the punching needle 101 is fixedly connected to the needle wheel 1, and the smaller diameter end of the punching needle 101 is used to punch holes in the protective film 12.

[0033] In this embodiment, the protective film 12 is installed behind the protective film winding mechanism. The protective film 12 passes between the needle wheel 1 and the flexible pressure wheel 2. The punching needle 101 on the needle wheel 1 can penetrate the protective film 12, and the front end of the punching needle 101 is embedded in the flexible buffer layer of the flexible pressure wheel 2. Therefore, the flexible pressure wheel 2 plays a supporting and limiting role for the protective film 12, preventing the protective film 12 from moving down during the punching process. At the same time, it prevents the protective film from being pulled during punching, causing local uneven deformation. In addition, the flexible pressure wheel 2 also has the function of assisting the protective film 12 to unfold, which greatly improves the extensibility of the protective film 12. When the protective film is wound up, the winding mechanism provides power to drive the protective film 12 to move and wind up. The movement of the protective film 12 drives the needle wheel 1 to rotate. The rotation of the needle wheel 1 drives the punching needle 101 to continue punching holes in the protective film 12 behind it. This method makes the holes on the protective film 12 uniform in size. At the same time, the needle wheel 1 drives the transmission wheel 3 and the flexible pressure wheel 2 to rotate synchronously through the transmission wheel 4, so that the perforated protective film 12 can move forward stably and flatly for synchronous winding.

[0034] Example 2:

[0035] like Figures 1 to 5 As shown, a punching device for producing protective film has two support seats 11, which are respectively disposed at both ends of the needle wheel 1 and the flexible pressure roller 2. Figure 1 As shown, two support bases 11 are jointly and fixedly connected to a protective cover 102 for protecting the punching needle 101. The protective cover 102 serves two purposes: protecting the punching needle 101 and preventing it from being exposed and causing injury, thus improving the safety of the device. Each support base 11 has a sliding bearing seat 5 and a sliding bearing seat 7 slidably connected inside. Specifically, guide rails 1101 are fixedly connected to both sides of the support base 11. Sliding grooves that mate with the guide rails 1101 are respectively opened on both sides of the sliding bearing seat 5 and the sliding bearing seat 7. A telescopic mechanism 8 is fixedly connected to the upper part of each support base 11. The telescopic mechanism 8 is preferably an adjustable stroke cylinder. The extended end of the telescopic mechanism 8 passes through the support base 11 and is movably connected to the sliding bearing seat 7. Figure 3 As shown, a movable hole is provided on the side of the sliding bearing housing 7 near the protruding end of the telescopic mechanism 8. The protruding end of the telescopic mechanism 8 passes through the movable hole, and the movable hole and the protruding end are clearance-fitted. Limit nuts are threadedly connected to both sides of the protruding end located at the movable hole. Activating the telescopic mechanism 8 can adjust the height of the needle wheel 1, thereby adjusting the drilling depth of the punching needle 101 and thus changing the drilling size. Secondly, when the needle wheel 1 is moved by the telescopic mechanism 8, the pressure between the needle wheel 1 and the flexible pressure roller 2 can be flexibly adjusted, which has the function of protecting the flexible pressure roller 2 and preventing the punching needle 101 from puncturing the flexible pressure roller 2.

[0036] The bottom of the support base 11 is provided with an adjusting hand wheel 6 and a threaded rod 501, the adjusting hand wheel 6 is fixedly connected with the lower end of the threaded rod 501, the threaded rod 501 is threadedly connected with the bottom of the support base 11, the upper end of the threaded rod 501 is movably connected with the sliding bearing seat one 5, specifically, the sliding bearing seat one 5 is provided with a mounting hole, the threaded rod 501 passes through the mounting hole, the threaded rod 501 is in clearance fit with the mounting hole, and the threaded rod 501 at both ends of the mounting hole is respectively provided with a limiting nut. The both ends of the pin wheel 1 are rotatably connected with the sliding bearing seat two 7 through coaxially fixedly connected transmission shafts, and the both ends of the flexible pressing wheel 2 are rotatably connected with the sliding bearing seat one 5. Since the protective film 12 is extremely thin, the meshing depth of the transmission wheel two 4 and the transmission wheel one 3 is much larger relative to the thickness of the protective film 12, by rotating the adjusting hand wheels 6 on both sides, the height of the sliding bearing seat one 5 can be finely adjusted, that is, the height and the parallelism of the flexible pressing wheel 2 are finely adjusted, it should be noted that when the height of the flexible pressing wheel 2 is finely adjusted, it is required to ensure that the transmission wheel two 4 and the transmission wheel one 3 can normally mesh, at this time, the height and the parallelism of the flexible pressing wheel 2 are finely adjusted, so that the protective film 12 can be better flattened, and the punching depth is finely adjusted, and then the punching size is finely adjusted.

[0037] When the pin wheel 1 is manufactured, the pin wheel 1 also has a heating function, a circulating channel capable of passing in a heat medium is arranged in the pin wheel 1, by passing in the heat medium into the circulating channel, the pin wheel 1 and the punching needle 101 can be heated, the punching needle 101 after being heated can relieve the brittleness of the protective film 12 when punching, and the punching quality and the punching efficiency are improved.

[0038] The embodiment also comprises a rack 10, one side of the support base 11 is fixedly connected with a connecting groove 9, the side, away from the support base 11, of the connecting groove 9 is fixedly connected with the rack 10, so that the utility model can be installed into an existing protective film winding mechanism. The others are the same as in the first embodiment.

[0039] As shown in FIGS. Figure 4 and Figure 5 When used, the same as in the first embodiment, the protective film winding mechanism is installed behind the protective film winding mechanism, the protective film 12 passes between the pin wheel 1 and the flexible pressing wheel 2, the two telescopic mechanisms 8 are synchronously started, the telescopic mechanisms 8 drive the retractable ends to retract or extend, the pin wheel 1 can be driven to move up and down, so as to adjust the punching depth of the punching needle 101, the support bases 11 on both sides and the sliding bearing seat one 5 and the sliding bearing seat two 7 inside are symmetrically arranged, so that the pin wheel 1 and the flexible pressing wheel 2 can effectively ensure the bilateral balance, and the film surface of the protective film 12 is more uniform.

[0040] After the height of the needle wheel 1 is adjusted, because the surface of the flexible compression wheel 2 has a certain deformation space, at this time, the adjusting hand wheel 6 is rotated, the adjusting hand wheel 6 drives the threaded rod 501 to rotate, so that the height of the threaded rod 501 is adjusted, that is, the height of the flexible compression wheel 2 is finely adjusted, so that the transmission wheel one 3 can be engaged with the transmission wheel two 4, at this time, the punching depth of the punching needle 101 is changed, so that the punching size is changed, and the punching size determines the bubble exhaust capability of the protective film 12.

[0041] The utility model realizes flexible adjustment of punching size, and the punching needle 101 is regularly distributed on the needle wheel 1, so that the regular distribution of the film surface small hole of the output protective film 12 is realized; through the support seat 11, the sliding bearing seat one 5, the sliding bearing seat two 7, the telescopic mechanism 8 and the adjusting hand wheel 6 symmetrically arranged on both sides, the bilateral balance of the needle wheel 1 and the flexible compression wheel 2 after adjustment is guaranteed, so that the film surface small hole size is consistent, the winding uniformity is good, and the winding size head and the three surrounding difference are not large and the like.

[0042] Finally, although the present specification is described according to the embodiments, not every embodiment only contains an independent technical scheme, and the description mode of the specification is only for the sake of clarity, and the person skilled in the art should regard the specification as a whole, and the technical scheme in each embodiment can be combined appropriately to form other embodiments that can be understood by the person skilled in the art.

Claims

1. A punching device for protecting film production, characterized by: It comprises an upper and lower needle wheel (1) and a flexible pressing wheel (2), the needle wheel (1) and the flexible pressing wheel (2) are rotatably connected with a support seat (11), the outer side wall of the needle wheel (1) is provided with regularly distributed punching needles (101), and the end of the punching needle (101) away from the needle wheel (1) is closely matched with the flexible pressing wheel (2).

2. The perforating device for the production of protective films according to claim 1, characterized in that: The flexible pressing wheel (2) is provided with a transmission wheel one (3) coaxially arranged, the needle wheel (1) is provided with a transmission wheel two (4) coaxially arranged, and the transmission wheel two (4) drives the transmission wheel one (3) to rotate in opposite directions.

3. The perforating device for the production of protective films according to claim 2, characterized in that: The transmission wheel two (4) and the transmission wheel one (3) are both gears, and the two gears are of equal size and mesh with each other.

4. The perforating device for the production of protective films according to claim 3, characterized in that: The support seat (11) is two, two support seats (11) are arranged at both ends of the needle wheel (1) and the flexible pressing wheel (2), the support seat (11) is slidably connected with a sliding bearing seat one (5) and a sliding bearing seat two (7), the upper part of the support seat (11) is fixedly connected with an extension mechanism (8), the extension end of the extension mechanism (8) is movably connected with the sliding bearing seat two (7), the bottom of the support seat (11) is provided with an adjusting hand wheel (6) and a threaded rod (501), the adjusting hand wheel (6) is fixedly connected with one end of the threaded rod (501), the threaded rod (501) is threadedly connected with the bottom of the support seat (11), the other end of the threaded rod (501) is movably connected with the sliding bearing seat one (5), both ends of the needle wheel (1) are connected with the sliding bearing seat two (7), and both ends of the flexible pressing wheel (2) are connected with the sliding bearing seat one (5).

5. The perforating device for the production of protective films according to claim 4, characterized in that: The support seat (11) is fixedly connected with a guide rail (1101), and the sliding bearing seat one (5) and the sliding bearing seat two (7) are respectively provided with sliding grooves matched with the guide rail (1101).

6. The perforating device for the production of protective films according to claim 4, characterized in that: The sliding bearing seat one (5) is provided with a mounting hole, the threaded rod (501) passes through the mounting hole, the threaded rod (501) is matched with the mounting hole in a clearance fit, and the threaded rod (501) at both ends of the mounting hole is respectively provided with a limiting nut.

7. The perforating device for the production of protective films according to claim 1, characterized in that: The punching needle (101) is in a conical or circular table structure.

8. The perforating device for the production of protective films according to claim 1, characterized in that: The support seat (11) is fixedly connected with a protective cover (102) for protecting the punching needle (101).

9. The perforating device for the production of protective films according to claim 1, characterized in that: The needle wheel (1) is internally provided with a circulating channel capable of introducing a heat medium.

10. A perforating device for the production of protective films according to any one of claims 1 to 9, characterized in that: It also comprises a rack (10), one side of the support seat (11) is fixedly connected with a connecting groove (9), and the side, away from the support seat (11), of the connecting groove (9) is fixedly connected with the rack (10).

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