Perforating device for POF (Polyolefin Fiber) heat shrink film production

Abstract

The utility model discloses a punching device for producing a POF (Polyolefin Fiber) heat shrink film, relates to the technical field of punching devices, and aims to solve the problem that the existing punching device is lack of an effective positioning mechanism when punching the POF heat shrink film, so that the film is easy to displace in the punching process and the punching dislocation is caused. Two supporting plates are welded to the bottom of the machining platform, a bottom support is welded between the two supporting plates, a hydraulic cylinder is arranged at the upper end of the bottom support, and a power box is arranged on the outer wall of one side of each supporting plate. The through guide hole is formed in the center position in the machining platform, a movable table plate is arranged above the through guide hole, a punching cutter cylinder is arranged at the upper end of the movable table plate, and the punching cutter cylinder and the movable table plate are of an integrated structure; and the film carrying table plate is arranged on the upper portion of the movable table plate, and a penetrating connection hole is formed in the film carrying table plate.

Description

Technical Field

[0001] The utility model relates to the technical field of punching devices, in particular to a punching device for producing POF heat shrinkable films. Background Art

[0002] POF heat shrink film refers to biaxially oriented polyolefin shrink film, which is the most widely used and rapidly developing new environmentally friendly shrink film in the world. It is widely used in the outer packaging and collective packaging of products in various industries such as food, cosmetics, gifts, medicines, stationery, toys, audio-visual products, electronics, wood products, plastic hardware, and daily necessities. When POF heat shrink film is used as a packaging film for specific products, it needs to be punched during production.

[0003] For example, the announcement number is: CN217703722U (named as a POF heat shrink film punching device), which includes a workbench, a frame is fixed on the top of the workbench, guide rollers are arranged on both sides of the frame, a hydraulic cylinder is installed on the top plate of the frame, the output end of the hydraulic cylinder passes through the top plate of the frame and is fixedly connected to a push plate, a mounting plate is fixed to the bottom of the push plate, a plurality of punching needles are arranged at the bottom of the mounting plate, and a baffle is arranged below the punching needle, a plurality of through holes corresponding to the positions of the punching needles are arranged on the baffle, and the inner wall of the through hole is provided with mutually symmetrical baffles, the top of the baffle is hinged to the inner wall of the top end of the through hole through a pin shaft, and a spring is connected between the inner side of the baffle and the inner wall of the through hole, and the POF heat shrink film punching device can clean the waste material adhered to the punching needle in real time to ensure the subsequent normal operation of the punching needle. The device is provided with a baffle with adjustable height between the punching needle and the workbench. When the hydraulic cylinder drives the pushing plate to advance toward the workbench so that several punching needles perform punching operations on the shrink film, the punching needles will pass through several through holes on the baffle and make flexible friction contact with the baffle plate, which enables the baffle plate to clean the waste material adhered to the punching needle in real time under the action of the spring, so that the punching needle can operate normally afterwards.

[0004] The above-mentioned punching device lacks an effective positioning mechanism when punching the POF heat shrink film, which causes the film to easily shift during the punching process, resulting in the problem of misalignment of the punching. For this reason, we provide a punching device for the production of POF heat shrink film. Utility Model Content

[0005] The purpose of the utility model is to provide a punching device for POF heat shrink film production, so as to solve the problem that the existing punching device proposed in the above background technology lacks an effective positioning mechanism when punching POF heat shrink film, which causes the film to be easily displaced during the punching process, resulting in misalignment of the punching.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a punching device for POF heat shrink film production, comprising a processing platform, two support plates are welded at the bottom of the processing platform, a bottom bracket is welded between the two support plates, a hydraulic cylinder is arranged at the upper end of the bottom bracket, and a power supply box is arranged on the outer wall of one side of the support plate;

[0007] Also includes:

[0008] A through guide hole is arranged at the inner center of the processing platform, and a movable table is arranged above the through guide hole, and a punching knife cylinder is arranged at the upper end of the movable table, and the punching knife cylinder and the movable table are an integrated structure;

[0009] A film-carrying platen is arranged above the movable platen, and a through hole is arranged inside the film-carrying platen;

[0010] The film pressing frame is installed on the upper end of the film carrying platen, and an electromagnet is provided on one side of the through hole. The electromagnet is embedded and fixedly connected to the inside of the film carrying platen, and the film pressing frame is adsorbed and connected to the film carrying platen through the electromagnet.

[0011] Preferably, a central pillar is welded at the bottom center of the movable table, the central pillar is connected to the processing platform through a through guide hole, and a connecting plate is welded at the bottom of the central pillar, which is fixedly connected to the top position of the hydraulic cylinder piston rod by screws.

[0012] Preferably, a linear bearing is fixed inside the connecting plate by screws, and the central support column is movably connected to the through guide hole through the linear bearing.

[0013] Preferably, two connecting rods are welded at the lower end of the film pressing frame, and assembly circular grooves are provided at the connecting positions of the two connecting rods and the film carrying platen, and the two assembly circular grooves and the film carrying platen are an integral structure.

[0014] Preferably, a switch is provided on one side of the movable platform, and connecting wires are provided on the output end and the input end of the switch. The switch is electrically connected to the power box and the electromagnet respectively through the two connecting wires.

[0015] Preferably, the diameter of the penetration hole is equal to the diameter of the punching knife cylinder.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The utility model lays the POF heat shrink film that needs to be punched on the upper end of the film carrier plate, then installs the film pressing frame on the upper end of the film carrier plate, and makes the film pressing frame press the edges of the laid POF heat shrink film, and then presses the switch to make the power box supply power to the electromagnet. After the electromagnet is energized, it generates magnetic force to adsorb and fix the film pressing frame, thereby fixing the film pressing frame, improving the positioning stability of the POF heat shrink film, and overcoming the problem that the existing punching device lacks an effective positioning mechanism when punching the POF heat shrink film, which makes the film easily displaced during the punching process and causes the punching misalignment.

[0018] 2. After the punching is completed, turn off the switch, remove the film pressing frame, and pull the movable table back to its position with the hydraulic cylinder. Then the POF heat shrink film after the punching can be removed, and the punched and cut film will fall into the inside of the punching knife cylinder. After the punching is completed, it can be cleaned up in a centralized manner, which makes it easy to take out the material and clean it. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the punching device for producing POF heat shrinkable film of the utility model;

[0020] Figure 2 This is a schematic diagram of the processing platform structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the movable table of the utility model;

[0022] Figure 4 It is a schematic diagram of the structure of the film pressing frame and the film carrying table of the utility model;

[0023] In the figure: 1. Processing platform; 2. Bottom bracket; 3. Hydraulic cylinder; 4. Support plate; 5. Power box; 6. Connecting rod; 7. Film carrier plate; 8. Film pressing frame; 9. Movable plate; 10. Punching knife cylinder; 11. Switch; 12. Connecting wires; 13. Through-hole; 14. Assembling circular groove; 15. Electromagnet; 16. Through-guide hole; 17. Linear bearing; 18. Center support; 19. Connecting plate; 20. Connecting rod. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] See also Figure 1-4The utility model provides an embodiment: a punching device for POF heat shrink film production, comprising a processing platform 1, two support plates 4 are welded at the bottom of the processing platform 1, a bottom bracket 2 is welded between the two support plates 4, a hydraulic cylinder 3 is arranged at the upper end of the bottom bracket 2, and a power supply box 5 is arranged on the outer wall of one side of the support plate 4;

[0026] Also includes:

[0027] A through guide hole 16 is provided at the inner center of the processing platform 1, and a movable table 9 is provided above the through guide hole 16, and a punching knife cylinder 10 is provided at the upper end of the movable table 9, and the punching knife cylinder 10 and the movable table 9 are an integrated structure;

[0028] The film-carrying platen 7 is arranged above the movable platen 9, and a through hole 13 is arranged inside the film-carrying platen 7;

[0029] The film pressing frame 8 is installed at the upper end of the film carrier plate 7, and an electromagnet 15 is provided on one side of the through hole 13. The electromagnet 15 is embedded and fixedly connected to the inside of the film carrier plate 7. The film pressing frame 8 is adsorbed and connected to the film carrier plate 7 through the electromagnet 15.

[0030] When in use, the POF heat shrink film that needs to be punched is laid on the upper end of the film carrier plate, and then the film pressing frame is installed on the upper end of the film carrier plate, and the film pressing frame is used to press and position the edges of the laid POF heat shrink film. Then, the switch is pressed so that the power box supplies power to the electromagnet. After the electromagnet is energized, it generates magnetic force to adsorb and fix the film pressing frame, thereby fixing the film pressing frame and improving the positioning stability of the POF heat shrink film.

[0031] See also Figure 2 and Figure 3 A central pillar 18 is welded at the bottom center of the movable table 9, and the central pillar 18 is connected to the processing platform 1 through the through guide hole 16. A connecting plate 19 is welded at the bottom of the central pillar 18, and the connecting plate 19 is fixedly connected to the top position of the piston rod of the hydraulic cylinder 3 by screws. The central pillar 18 welded at the bottom center of the movable table 9 plays the role of extending and connecting with the hydraulic cylinder 3.

[0032] See also Figure 2 and Figure 3 A linear bearing 17 is fixed inside the connecting plate 19 by screws, and the center pillar 18 is movably connected to the through guide hole 16 through the linear bearing 17. The linear bearing 17 fixed inside the connecting plate 19 by screws plays a role in assisting the lifting and lowering activities of the center pillar 18.

[0033] See also Figure 4Two connecting rods 20 are welded at the lower end of the film pressing frame 8, and an assembling circular groove 14 is provided at the connecting position of the two connecting rods 20 and the film carrying table 7. The two assembling circular grooves 14 and the film carrying table 7 are an integrated structure. The two connecting rods 20 welded at the lower end of the film pressing frame 8 play the role of corresponding connection with the assembling circular grooves 14.

[0034] See also Figure 2 A switch 11 is provided on one side of the movable table 9, and wiring 12 is provided on the output end and the input end of the switch 11. The switch 11 is electrically connected to the power box 5 and the electromagnet 15 through the two wiring 12. The switch 11 provided on one side of the movable table 9 plays a role in controlling the start and stop of power supply to the electromagnet 15.

[0035] See also Figure 1 The diameter of the penetration hole 13 is equal to the diameter of the punching knife cylinder 10.

[0036] Working principle: When in use, the POF heat shrink film to be punched is laid on the upper end of the film-carrying table 7, and then the film pressing frame 8 is installed on the upper end of the film-carrying table 7, and the film pressing frame 8 is used to press and position the edges of the laid POF heat shrink film. Then, the switch 11 is pressed, so that the power box 5 supplies power to the electromagnet 15. After the electromagnet 15 is powered, it generates magnetic force to adsorb and fix the film pressing frame 8, thereby fixing the film pressing frame 8, thereby improving the positioning stability of the POF heat shrink film, and the best Then, the movable table 9 is driven by the hydraulic cylinder 3 to lift up, so that the punching knife cylinder 10 passes through the penetration hole 13 and accurately punches and cuts the POF heat shrink film. After the punching is completed, the switch 11 is turned off, the film pressing frame 8 is removed, and the hydraulic cylinder 3 pulls the movable table 9 back to its original position, so that the POF heat shrink film after the punching can be removed, and the punched and cut film cuts fall into the inside of the punching knife cylinder 10. After the punching is completed, it can be cleaned up together, and the use of the punching device for the production of POF heat shrink film is completed.

[0037] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A punching device for producing POF heat shrinkable film, comprising a processing platform (1), two support plates (4) are welded to the bottom of the processing platform (1), a bottom bracket (2) is welded between the two support plates (4), a hydraulic cylinder (3) is arranged at the upper end of the bottom bracket (2), and a power supply box (5) is arranged on the outer wall of one side of the support plate (4); Features: Also includes: A through guide hole (16) is arranged at the inner center position of the processing platform (1), and a movable table (9) is arranged above the through guide hole (16), and a punching knife cylinder (10) is arranged at the upper end of the movable table (9), and the punching knife cylinder (10) and the movable table (9) are an integrated structure; A film-carrying table (7) is arranged above the movable table (9), and a through hole (13) is arranged inside the film-carrying table (7); The film pressing frame (8) is installed at the upper end of the film carrying platen (7), and an electromagnet (15) is provided on one side of the through hole (13). The electromagnet (15) is embedded and fixedly connected to the inside of the film carrying platen (7). The film pressing frame (8) is adsorbed and connected to the film carrying platen (7) through the electromagnet (15).

2. The punching device for producing POF heat shrinkable film according to claim 1, characterized in that: A central pillar (18) is welded at the center of the bottom of the movable table (9), and the central pillar (18) is connected to the processing platform (1) through a through guide hole (16). A connecting plate (19) is welded at the bottom of the central pillar (18), and the connecting plate (19) is fixedly connected to the top position of the piston rod of the hydraulic cylinder (3) through screws.

3. A punching device for producing POF heat shrinkable film according to claim 2, characterized in that: A linear bearing (17) is fixedly arranged inside the connection plate (19) by means of screws, and the central support (18) is movably connected to the through guide hole (16) through the linear bearing (17).

4. The punching device for producing POF heat shrinkable film according to claim 1, characterized in that: Two connecting rods (20) are welded at the lower end of the film pressing frame (8), and an assembly circular groove (14) is provided at the connection position between the two connecting rods (20) and the film carrying table (7), and the two assembly circular grooves (14) and the film carrying table (7) are an integrated structure.

5. The punching device for producing POF heat shrinkable film according to claim 1, characterized in that: A switch (11) is provided on one side of the movable platform (9), and connecting wires (12) are provided on the output end and the input end of the switch (11). The switch (11) is electrically connected to the power supply box (5) and the electromagnet (15) respectively through the two connecting wires (12).

6. The punching device for producing POF heat shrinkable film according to claim 1, characterized in that: The diameter of the penetration hole (13) is equal to the diameter of the perforating knife cylinder (10).

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