Pinhole forming device for protective film

Abstract

The utility model relates to the technical field of production and manufacturing of protective films, in particular to a pinhole forming device for a protective film, which comprises supporting legs, the supporting legs are positioned at the bottom end of the whole device, a processing table is fixedly mounted at the upper ends of the supporting legs, a conveying device is mounted on the processing table, and a fixing frame is fixedly mounted at the upper end of the conveying device. An air cylinder is installed at the top end of the fixing frame, an air rod is installed at the output end of the air cylinder, a connecting block is fixedly installed at the bottom end of the air rod, a moving assembly is installed in the connecting block, and a drill bit is installed at the bottom end of the moving assembly. The two sides of a protective film can be limited and moved through a containing groove in a conveying device of the pinhole forming device, high efficiency of trepanning is guaranteed, a connecting rod is driven to move inwards or outwards at the same time in cooperation with rotation of a motor, trepanning at different positions is achieved, an arranged drill bit is replaced through a locking screw, and the efficiency of trepanning is improved. And drill bits with different sizes can be replaced conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of protective film production and manufacturing, in particular to a pinhole opening device for a protective film. Background Art

[0002] Protective films include digital product protective films, car protective films, household protective films, food protective films, etc.; protective films can be made of PP material, PVC material, PET material or PE material, and can be adhesive films or self-adhesive films.

[0003] Heat-shrinkable film is a new type of packaging material that has gradually replaced cartons. During its processing, it is necessary to make pinholes in the protective film. In the related technology, such as the Chinese patent with application number: "202123151484.4", its name is: "A pinhole opening device for protective film", including: a mounting bracket, a film needle roller and a power mechanism; the mounting bracket includes a sliding support rod, the film needle roller is fixed on the sliding support rod, and is slidably connected to the sliding support rod through a connecting assembly; a film transport mechanism is arranged opposite to the bottom of the film needle roller, wherein a roller needle is arranged on the side of the film needle roller facing the film transport mechanism, and the power mechanism controls the sliding height of the film needle roller.

[0004] The utility model can automatically perform pinhole processing on the protective film, but the position of the pinhole is fixed and cannot meet the requirements of different opening positions, and the pinhole cannot be replaced, resulting in a fixed opening size and a small scope of application. A pinhole opening device for a protective film is needed to solve this problem. Utility Model Content

[0005] The utility model aims to provide a pinhole opening device for a protective film to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pinhole opening device for a protective film, comprising a supporting leg, the supporting leg is located at the bottom end of the entire device, a processing table is fixedly installed on the upper end of the supporting leg, a conveying device is installed on the processing table, a fixing frame is fixedly installed on the upper end of the conveying device, a cylinder is installed on the top of the fixing frame, a gas rod is installed on the output end of the cylinder, a connecting block is fixedly installed on the bottom end of the gas rod, a moving component is installed in the connecting block, a drill bit is installed on the bottom end of the moving component, a groove is opened at the bottom end of the connecting block, the diameter of the groove is larger than the diameter of the connecting rod, an opening is opened at the bottom end of the connecting rod, a threaded groove is installed on the side end of the opening, a locking screw is threadedly connected to the threaded groove, a drill bit is installed on the opening, a U-shaped groove is opened on the drill bit, and the U-shaped groove is limited by a locking screw penetrating the threaded groove.

[0007] As a preferred technical solution of the utility model, a motor is installed in the moving component, a bidirectional threaded rod is installed at the output end of the motor, the symmetrical ends of the bidirectional threaded rod are threadedly connected with threaded sleeves, and a connecting rod is fixedly installed at the bottom end of the threaded sleeve.

[0008] As a preferred technical solution of the utility model, a second sliding block is fixedly installed on the top of the threaded sleeve, a second sliding groove is opened in the connecting block, and the second sliding groove is slidably connected to the second sliding block on the threaded sleeve.

[0009] As a preferred technical solution of the utility model, a storage groove is provided on the conveying device, a protective film is installed on the storage groove, and a panel is fixedly installed on the front side of the conveying device.

[0010] As a preferred technical solution of the utility model, first sliders are fixedly installed on both side ends of the connection block, and first slide grooves are opened on the inner wall of the fixing frame. The first slide grooves are slidably connected to the first sliders on both sides of the connection block.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] (1) The utility model is a device for drilling a pinhole in a protective film. The storage slot on the conveying device of the pinhole drilling device provided in the device can limit and move the two sides of the protective film to ensure the high efficiency of drilling holes. The rotation of the motor drives the connecting rod to move inward or outward at the same time to realize drilling holes at different positions. The drill bit provided can be replaced by a locking screw, which is convenient for replacing drill bits of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a structural schematic diagram of a pinhole opening device for a protective film according to an embodiment of the utility model;

[0015] Figure 2 It is a schematic diagram of the structure inside a fixing frame of a pinhole opening device for a protective film according to an embodiment of the utility model;

[0016] Figure 3 According to the utility model Figure 2 Schematic diagram of the structure enlarged at point A in the middle.

[0017] Reference numerals:

[0018] 1. Support legs; 2. Processing table; 3. Conveying device; 4. Storage slot; 5. Protective film; 6. Fixed frame; 7. Panel; 8. Cylinder; 9. Gas rod; 10. Connecting block; 11. First slider; 12. First slide slot; 13. Motor; 14. Bearing; 15. Bidirectional threaded rod; 16. Threaded sleeve; 17. Second slider; 18. Second slide slot; 19. Connecting rod; 20. Slotting; 21. Opening hole; 22. Drill bit; 23. U-shaped slot; 24. Threaded slot; 25. Locking screw. DETAILED DESCRIPTION

[0019] Below, in conjunction with the accompanying drawings and specific implementation methods, the utility model is further described:

[0020] Example 1

[0021] See also Figure 1 to Figure 2 Embodiment 1 is described, comprising a support leg 1, the support leg 1 is located at the bottom end of the entire device, a processing table 2 is fixedly installed on the upper end of the support leg 1, a conveying device 3 is installed on the processing table 2, a fixing frame 6 is fixedly installed on the upper end of the conveying device 3, a cylinder 8 is installed on the top of the fixing frame 6, a gas rod 9 is installed on the output end of the cylinder 8, a connecting block 10 is fixedly installed on the bottom end of the gas rod 9, a moving component is installed in the connecting block 10, a drill bit 22 is installed on the bottom end of the moving component, a storage groove 4 is opened on the conveying device 3, a protective film 5 is installed on the storage groove 4, a panel 7 is fixedly installed on the front of the conveying device 3, first sliders 11 are fixedly installed on both sides of the connecting block 10, a first slide groove 12 is opened on the inner wall of the fixing frame 6, and the first slide groove 12 is slidably connected to the first sliders 11 on both sides of the connecting block 10;

[0022] In this embodiment, the conveying device 3 is convenient for conveying the protective film 5 and for quickly opening holes. The placement slot 4 is convenient for limiting the position of the protective film 5 and for opening holes.

[0023] Example 2

[0024] See also Figure 2 to Figure 3Embodiment 2 is described. This embodiment further describes Embodiment 1, including a motor 13 installed in a moving component, a bidirectional threaded rod 15 installed at the output end of the motor 13, a threaded sleeve 16 threadedly connected to the symmetrical ends of the bidirectional threaded rod 15, a connecting rod 19 fixedly installed at the bottom end of the threaded sleeve 16, a second slider 17 fixedly installed at the top end of the threaded sleeve 16, a second slide groove 18 is provided in the connecting block 10, the second slide groove 18 is slidably connected to the second slider 17 on the threaded sleeve 16, a slot 20 is provided at the bottom end of the connecting block 10, the diameter of the slot 20 is larger than the diameter of the connecting rod 19, an opening 21 is provided at the bottom end of the connecting rod 19, a threaded groove 24 is installed at the side end of the opening 21, a locking screw 25 is threadedly connected to the threaded groove 24, a drill bit 22 is installed on the opening 21, a U-shaped groove 23 is provided on the drill bit 22, and the U-shaped groove 23 is limited by the locking screw 25 penetrating the threaded groove 24;

[0025] In this embodiment, the provided moving assembly can drive the connecting rod 19 at the bottom end of the threaded sleeve 6 to move inward or outward at the same time through the rotation of the motor 13, so as to realize opening holes at different positions.

[0026] In specific applications, the pinhole opening device provided in the present device is configured to place the protective film 5 that needs to have a hole 21 opened into the placement groove 4 on the conveying device. The placement groove 4 can limit the two sides of the protective film 5 and move through the conveying device 3 to cooperate with the drill bit 22 at the bottom end of the connecting block 10 to open holes. In order to ensure that holes are opened at different positions, the present device drives the rotation of the threaded sleeve 16 on the bidirectional threaded rod 15 through the rotation of the motor 13. Since the threaded sleeve 6 is slidably connected with the second slide groove 18 through the second slider 17, the connecting rod 19 at the bottom end of the threaded sleeve 6 on both sides can move inward or outward at the same time to open holes at different positions. The sizes of the holes opened in different protective films 5 are different. The drill bit 22 provided in the present device is locked in the U-shaped groove 23 on the drill bit 22 by the locking screw 25. The drill bit 22 can be replaced by adjusting the locking screw 25, which is convenient for replacing drill bits 22 of different sizes, so that the use range of the entire device is widened.

[0027] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inside", "top end", "bottom end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance; in addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A pinhole opening device for a protective film, characterized in that: The device comprises a support leg (1), wherein the support leg (1) is located at the bottom end of the entire device, a processing table (2) is fixedly mounted on the upper end of the support leg (1), a conveying device (3) is mounted on the processing table (2), a fixing frame (6) is fixedly mounted on the upper end of the conveying device (3), a cylinder (8) is mounted on the top end of the fixing frame (6), a gas rod (9) is mounted on the output end of the gas cylinder (8), a connecting block (10) is fixedly mounted on the bottom end of the gas rod (9), a moving component is mounted inside the connecting block (10), and a drill bit (10) is mounted on the bottom end of the moving component The connecting block (10) is provided with a slot (20) at the bottom end, the diameter of the slot (20) is larger than the diameter of the connecting rod (19), the connecting rod (19) is provided with an opening (21) at the bottom end, a thread groove (24) is installed at the side end of the opening (21), a locking screw (25) is threadedly connected to the thread groove (24), a drill bit (22) is installed on the opening (21), a U-shaped slot (23) is provided on the drill bit (22), and the U-shaped slot (23) is limited by the locking screw (25) penetrating the thread groove (24).

2. The pinhole opening device for a protective film according to claim 1, characterized in that: A motor (13) is installed in the moving assembly, a bidirectional threaded rod (15) is installed at the output end of the motor (13), symmetrical ends of the bidirectional threaded rod (15) are both threadedly connected with threaded sleeves (16), and a connecting rod (19) is fixedly installed at the bottom end of the threaded sleeve (16).

3. The pinhole opening device for a protective film according to claim 2, characterized in that: A second sliding block (17) is fixedly mounted on the top of the threaded sleeve (16), a second sliding groove (18) is provided in the connecting block (10), and the second sliding groove (18) is slidably connected to the second sliding block (17) on the threaded sleeve (16).

4. The pinhole opening device for a protective film according to claim 1, characterized in that: The conveying device (3) is provided with a storage groove (4), a protective film (5) is installed on the storage groove (4), and a panel (7) is fixedly installed on the front of the conveying device (3).

5. The pinhole opening device for a protective film according to claim 1, characterized in that: First sliding blocks (11) are fixedly mounted on both side ends of the connection block (10), and a first sliding groove (12) is provided on the inner wall of the fixing frame (6). The first sliding groove (12) is slidably connected to the first sliding blocks (11) on both sides of the connection block (10).

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