PE shrink film pore-forming device

Abstract

The utility model provides a PE shrink film hole forming device which comprises a bottom box, an upper frame is fixed to the top of the bottom box, containing cavities are formed in the two ends of the bottom box, a winding roller is installed in the containing cavity in the front end of the bottom box, an unwinding roller is installed in the containing cavity in the rear end of the bottom box, and a PE shrink film is wound between the winding roller and the unwinding roller. A bearing table is fixed to the position, between the winding roller and the unwinding roller, of the bottom box, the PE shrink film of the winding roller and the PE shrink film of the unwinding roller penetrate through the bearing table in a sliding mode, and limiting plates are fixed to the two sides of the top of the bearing table. In the process, the pressing plate synchronously descends along with the connecting rod and the inclined groove and tensions the PE shrink film, punching is kept more uniform, the PE shrink film which is just put in can be conveniently pulled and conveyed through the push plate in the limiting plate, the PE shrink film is connected with the winding roller at the other end, and therefore the situation that the PE shrink film directly penetrates through equipment manually, and consequently the PE shrink film is accidentally injured by a faller gill is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of PE shrink film hole forming, in particular to a PE shrink film hole forming device. Background Art

[0002] PE shrink film is an industrial film product with high tensile strength, large elongation, good self-adhesion, high transparency, etc. It can be used for manual stretch film, machine stretch film, and can be widely used for centralized packaging of various goods. PE stretch film is mainly made of a mixture of several different grades of polyolefin resins. It has puncture resistance, super strength and high performance. It is used to wrap the goods stacked on the pallet, making the packaging more stable and tidy, and has a stronger waterproof effect. It is widely used in foreign trade exports, papermaking, hardware, plastic chemicals, building materials, food and medicine industries. In order to meet the needs of use, some PE shrink films need to be punched with a punching device during production.

[0003] Patent CN219617992U proposes a PE shrink film hole-forming device, in which the piston rod of the cylinder repeatedly extends and retracts to drive the moving plate to move. When the moving plate moves downward, the buffer spring pushes the puncher downward to perform the punching operation.

[0004] In the above scheme, during the long winding process, the supporting spring releases part of the elastic energy, pushing the connecting block to move toward the front side of the machine body, and then the connecting block drives the second roller to move away from the first roller, increasing the tension of the PE shrink film, so that the puncher can evenly punch holes on the surface of the PE shrink film. However, this technical method relies on the spring elastic force and has poor stability, and the service life of the spring will affect the maintenance of the tension of the PE shrink film. In addition, in the technical scheme, when replacing a new PE shrink film, it is inconvenient to guide the PE shrink film through various structures, and it is easy to be accidentally injured by the needle row. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model aims to provide a PE shrink film hole-forming device to solve the problems raised in the above-mentioned background technology. The utility model has a novel structure. The needle row is driven down by a cylinder to punch holes in the PE shrink film. During the process, the pressure plate is synchronously lowered along with the connecting rod and the inclined groove to tension the PE shrink film to keep the punching more uniform. The push plate in the limit plate can conveniently pull and convey the PE shrink film just put in and connect it to the winding roller at the other end, thereby avoiding direct human penetration of the film through the equipment and causing accidental injury by the needle row.

[0006] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a PE shrink film hole-forming device, comprising a bottom box, an upper frame is fixed on the top of the bottom box, and placement cavities are arranged at both ends of the bottom box, a winding roller is installed in the placement cavity at the front end of the bottom box, and an unwinding roller is installed in the placement cavity at the rear end of the bottom box, a PE shrink film is wound between the winding roller and the unwinding roller, a bearing platform is fixed on the bottom box between the winding roller and the unwinding roller, and the PE shrink film of the winding roller and the unwinding roller slides through the bearing platform, limiting plates are fixed on both sides of the top of the bearing platform, and clamping plates are arranged on the upper and lower surfaces of the limiting plates corresponding to both sides of the PE shrink film, the clamping plates can be clamped on both sides of the PE shrink film, a punching component is arranged inside the upper frame, and the punching component includes an insert plate, a needle row is arranged at the bottom of the insert plate, and pressure plates for pressing the PE shrink film are arranged on both sides of the needle row.

[0007] Furthermore, a motor is fixed on the outside of the bottom box at a position corresponding to the installation of the winding roller, and the shaft of the winding roller can be connected to the motor, and box doors are installed at positions of the bottom box corresponding to the winding roller and the unwinding roller.

[0008] Furthermore, a movable groove is provided on the surface of the limiting plate, a movable notch of the same length is provided at a position of the bottom box corresponding to the movable groove, and a push plate is slidably connected inside the movable groove, and the other end of the push plate passes through the movable notch.

[0009] Furthermore, a cavity is provided inside the push plate, and two groups of clamps symmetrically extend out of the outer end of the push plate. A bidirectional screw is rotatably mounted on the outer end of the push plate through a bearing seat, and the clamps are meshed and sleeved on the surface of the bidirectional screw.

[0010] Furthermore, the punching assembly also includes a cylinder, a plurality of groups of cylinders are equidistantly fixed on the inner wall at the top of the upper frame, and a mounting frame is fixed to the extended end of the cylinder, and the plug plate is plugged into the mounting frame.

[0011] Furthermore, a bolt is engaged and inserted at the top of one end of the installation frame, and the bottom of the bolt can be locked inside the plug plate, and a side door is provided on one side of the upper frame corresponding to the bolt.

[0012] Furthermore, connecting rods are symmetrically rotatably connected to the front and rear surfaces of the installation frame via a rotating shaft, and the other end of the connecting rod is rotatably connected to the pressure plate via the rotating shaft, and an arc surface is provided at the bottom of the pressure plate.

[0013] Furthermore, an inclined groove is provided on the surface of the limiting plate at a position corresponding to the pressing plate, and both ends of the pressing plate slide along the inside of the inclined groove.

[0014] Beneficial effects of the utility model: the utility model is a PE shrink film hole forming device, comprising a bottom box; a motor; a box door; a movable notch; a bearing platform; a winding roller; an unwinding roller; an upper frame; a side door; a punching assembly; a cylinder; a mounting frame; a plug plate; a needle row; a bolt; a connecting rod; an inclined groove; a pressure plate; a limit plate; a movable groove; a push plate; a clamping plate; a bidirectional screw;

[0015] The utility model moves the pressing plate from the middle of the PE shrink film to both sides under the push of the connecting rod and the guidance of the inclined groove, and gradually changes from the contact state to the extrusion state, thereby ensuring the tension of the PE shrink film during each hole punching.

[0016] The utility model can unlock the bolts and open the side door to take out the plug plate and the needle row, so that needle rows of different models can be replaced conveniently to meet different punching requirements.

[0017] The utility model moves a push plate to one side of the unwinding roller, and after the new unwinding roller is installed, pulls the movable end of the PE shrink film on the surface, rotates the bidirectional screws on both sides of the push plate, drives the clamping plates to clamp the upper and lower sides of the PE shrink film, and then pulls the PE shrink film to one side of the winding roller along the moving groove and the moving notch for connection.

[0018] Compared with the prior art, the utility model uses an air cylinder to drive the needle row to descend to punch holes in the PE shrink film. During the process, the pressure plate descends synchronously with the connecting rod and the inclined groove and tensions the PE shrink film to keep the punching more uniform. The push plate in the limit plate can conveniently pull and convey the PE shrink film just put in and connect it to the winding roller at the other end, thereby preventing people from directly passing it through the equipment and causing accidental injury by the needle row. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a PE shrink film hole-forming device of the utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the bottom box and upper frame of a PE shrink film hole-forming device of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of a punching component of a PE shrink film hole-forming device of the utility model;

[0022] Figure 4 The utility model is a schematic diagram of the outer end structure of a limit plate of a PE shrink film hole-forming device.

[0023] In the figure: 1. bottom box; 11. motor; 12. box door; 13. moving notch; 14. bearing platform; 15. winding roller; 16. unwinding roller; 2. upper frame; 21. side door; 3. punching assembly; 31. cylinder; 32. mounting frame; 33. plug plate; 34. needle row; 35. bolt; 36. connecting rod; 37. inclined groove; 38. pressure plate; 4. limit plate; 41. moving groove; 42. push plate; 43. clamping plate; 44. bidirectional screw. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] See also Figures 1 to 4 The utility model provides a technical solution: a PE shrink film hole forming device, comprising a bottom box 1, an upper frame 2 is fixed on the top of the bottom box 1, and placement cavities are arranged at both ends of the bottom box 1, a winding roller 15 is installed in the placement cavity at the front end of the bottom box 1, and an unwinding roller 16 is installed in the placement cavity at the rear end of the bottom box 1, a PE shrink film is wound between the winding roller 15 and the unwinding roller 16, a bearing platform 14 is fixed between the winding roller 15 and the unwinding roller 16 of the bottom box 1, and the PE shrink film of the winding roller 15 and the unwinding roller 16 slides through the bearing platform 14, and limit plates 4 are fixed on both sides of the top of the bearing platform 14 , and the upper and lower surfaces of the limit plates 4 corresponding to the two sides of the PE shrink film are provided with clamping plates 43, and the clamping plates 43 can be clamped on both sides of the PE shrink film. A punching component 3 is provided inside the upper frame 2, and the punching component 3 includes an insert plate 33, and a needle row 34 is provided at the bottom of the insert plate 33, and pressure plates 38 for pressing the PE shrink film are provided on both sides of the needle row 34. When using the device, a winding roller 15 and an unwinding roller 16 are installed in the cavity at both ends of the bottom box 1, and the PE shrink film is guided to one side of the winding roller 15 for connection through the push plate 42, and then the surface of the PE shrink film is punched through the punching component 3 inside the upper frame 2.

[0026] In this embodiment, a motor 11 is fixed at a position on the outside of the bottom box 1 corresponding to the installation position of the winding roller 15, and the shaft of the winding roller 15 can be connected to the motor 11. The bottom box 1 is provided with a box door 12 at positions corresponding to the winding roller 15 and the unwinding roller 16. The box door 12 is used to conveniently take out and replace the winding roller 15 and the unwinding roller 16, and the connection method between the motor 11 and the winding roller 15 can be a common snap-on installation.

[0027] In this embodiment, a movable groove 41 is provided on the surface of the limit plate 4, and a movable notch 13 of the same length is provided at a position of the bottom box 1 corresponding to the movable groove 41, and a push plate 42 is slidably connected inside the movable groove 41, and the other end of the push plate 42 passes through the movable notch 13, and a cavity is provided inside the push plate 42, and two groups of clamping plates 43 symmetrically pass through the outer end of the push plate 42, and a bidirectional screw 44 is rotatably installed on the outer end of the push plate 42 through a bearing seat, and the clamping plate 43 is meshed and sleeved on the surface of the bidirectional screw 44, and the push plate 42 is moved to one side of the unwinding roller 16. After the new unwinding roller 16 is installed, the movable end of the PE shrink film on the surface is pulled, and the bidirectional screws 44 on both sides of the push plate 42 are rotated to drive the clamping plate 43 to clamp the upper and lower sides of the PE shrink film, and then the PE shrink film is pulled along the movable groove 41 and the movable notch 13 to the side of the winding roller 15 for connection.

[0028] In this embodiment, the punching assembly 3 also includes a cylinder 31, a plurality of groups of cylinders 31 are equidistantly fixed on the inner wall at the top of the upper frame 2, and a mounting frame 32 is fixed to the extended end of the cylinder 31, the plug plate 33 is plugged into the inside of the mounting frame 32, a bolt 35 is engaged and plugged into the top of one end of the mounting frame 32, and the bottom of the bolt 35 can be locked inside the plug plate 33, and a side door 21 is provided on the side of the upper frame 2 corresponding to the bolt 35, and connecting rods 36 are symmetrically rotatably connected to the front and rear surfaces of the mounting frame 32 through a rotating shaft, and the other end of the connecting rod 36 is rotatably connected to the pressure plate 38 through a rotating shaft, and the bottom of the pressure plate 38 is provided with an arc surface, and the limit An inclined groove 37 is provided on the surface of the positioning plate 4 at a position corresponding to the pressing plate 38, and the two ends of the pressing plate 38 slide along the inside of the inclined groove 37. The cylinder 31 drives the mounting frame 32, the inserting plate 33 and the needle row 34 to descend to punch holes on the surface of the PE shrink film. During the process, the pressing plate 38 is pushed by the connecting rod 36 and guided by the inclined groove 37, and moves from the middle of the PE shrink film to both sides, and gradually changes from a contact state to an extrusion state, thereby ensuring that the tension of the PE shrink film is maintained each time a hole is punched. By unlocking the bolt 35 and opening the side door 21, the inserting plate 33 and the needle row 34 can be taken out, so that different models of needle rows 34 can be replaced conveniently to meet different punching requirements.

[0029] When using the device, the winding roller 15 and the unwinding roller 16 are installed in the cavity at both ends of the bottom box 1, and the push plate 42 is moved to one side of the unwinding roller 16. After the new unwinding roller 16 is installed, the movable end of the PE shrink film on the surface is pulled, and the bidirectional screws 44 on both sides of the push plate 42 are rotated to drive the clamping plate 43 to clamp the upper and lower sides of the PE shrink film, and then the PE shrink film is pulled to one side of the winding roller 15 along the moving groove 41 and the moving notch 13 for connection, and the cylinder 31 drives the installation frame 32, the plug plate 33 and the needle row 34 to descend to punch holes on the surface of the PE shrink film. During the process, the pressing plate 38 is pushed by the connecting rod 36 and guided by the inclined groove 37, and moves from the middle of the PE shrink film to both sides, and gradually changes from contact to extrusion, so as to ensure that the tension of the PE shrink film can be guaranteed each time a hole is punched. By unlocking the bolt 35 and opening the side door 21, the plug plate 33 and the needle row 34 can be taken out, which is convenient for replacing different types of needle rows 34 to meet different punching requirements.

[0030] The basic principles and main features of the present invention and the advantages of the present invention are shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention.

[0031] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A PE shrink film hole forming device, comprising a bottom box (1), characterized in that: An upper frame (2) is fixed on the top of the bottom box (1), and placement cavities are arranged at both ends of the bottom box (1). A winding roller (15) is installed in the placement cavity at the front end of the bottom box (1), and an unwinding roller (16) is installed in the placement cavity at the rear end of the bottom box (1), a PE shrink film is wound between the winding roller (15) and the unwinding roller (16), and a bearing platform (14) is fixed between the winding roller (15) and the unwinding roller (16), and the PE shrink film sliding between the winding roller (15) and the unwinding roller (16) is arranged on the bottom box (1). The upper frame (2) is provided with a punching assembly (3), and the punching assembly (3) comprises an insert plate (33), a needle row (34) is provided at the bottom of the insert plate (33), and pressure plates (38) for pressing the PE shrink film are provided on both sides of the needle row (34).

2. A PE shrink film hole forming device according to claim 1, characterized in that: A motor (11) is fixed on the outside of the bottom box (1) at a position corresponding to the installation of the winding roller (15), and the shaft of the winding roller (15) can be connected to the motor (11). Box doors (12) are installed at positions of the bottom box (1) corresponding to the winding roller (15) and the unwinding roller (16).

3. A PE shrink film hole forming device according to claim 1, characterized in that: A movable groove (41) is provided on the surface of the limit plate (4), a movable notch (13) of the same length is provided on the bottom box (1) at a position corresponding to the movable groove (41), and a push plate (42) is slidably connected inside the movable groove (41), and the other end of the push plate (42) passes through the movable notch (13).

4. A PE shrink film hole forming device according to claim 3, characterized in that: The push plate (42) has a cavity inside, and two groups of clamping plates (43) symmetrically extend out of the outer end of the push plate (42). A bidirectional screw (44) is rotatably mounted on the outer end of the push plate (42) through a bearing seat, and the clamping plates (43) are meshed and sleeved on the surface of the bidirectional screw (44).

5. A PE shrink film hole forming device according to claim 1, characterized in that: The punching assembly (3) further comprises a cylinder (31), a plurality of groups of cylinders (31) are fixed at equal intervals on the top inner wall of the upper frame (2), and a mounting frame (32) is fixed to the extended end of the cylinder (31), and the plug plate (33) is plugged into the interior of the mounting frame (32).

6. A PE shrink film hole forming device according to claim 5, characterized in that: A bolt (35) is engaged and inserted at the top of one end of the installation frame (32), and the bottom of the bolt (35) can be locked inside the plug plate (33). A side door (21) is provided on one side of the upper frame (2) corresponding to the bolt (35).

7. A PE shrink film hole forming device according to claim 6, characterized in that: Connecting rods (36) are symmetrically rotatably connected to the front and rear surfaces of the installation frame (32) via a rotating shaft, and the other end of the connecting rod (36) is rotatably connected to a pressure plate (38) via a rotating shaft. The bottom of the pressure plate (38) is provided with an arc surface.

8. A PE shrink film hole forming device according to claim 7, characterized in that: An inclined groove (37) is provided on the surface of the limiting plate (4) at a position corresponding to the pressing plate (38), and both ends of the pressing plate (38) slide along the inside of the inclined groove (37).

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