Metallized polypropylene film production edge pressing device

Abstract

The utility model provides an edge pressing device for metalized polypropylene film production, belongs to the technical field of polypropylene film production, and aims to solve the problems that in the hot-pressing shaping process of the edge of an existing metalized polypropylene film, a hot pressing plate is often adhered to the edge of the film, the manual intervention frequency is increased, and the production efficiency is influenced. Comprising a workbench, an extrusion plate, a placement plate, a transmission box, an anti-adhesion assembly and a limiting assembly; the extrusion plate is fixedly connected to the upper surface of the workbench; the placing plate is fixedly connected to the upper surface of the workbench; the two transmission boxes are dispersedly and fixedly connected to the upper surface of the shielding cover; the anti-adhesion assembly is arranged above the workbench; and the limiting assembly is arranged in the extrusion plate. In the edge pressing operation, when the hot pressing plate ascends, the arc-shaped pressing block is automatically driven to press downwards, thin films which are possibly adhered can be automatically separated, meanwhile, the thin films are prevented from being placed at the back position through the automatically-telescopic limiting plate, the production efficiency is improved, and the product quality is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of polypropylene film production technology, and more specifically, it relates to a pressing device for producing metallized polypropylene film. Background Technology

[0002] In the production process of metallized polypropylene film, the edge pressing device is used to ensure that the film edges are flat, without wrinkles or damage, thereby improving product quality and the stability of subsequent processing (such as slitting and winding). The hot-press edge setting machine is a commonly used edge pressing device, which is generally composed of a body, a pressing cylinder and a hot pressing plate.

[0003] Existing application number: CN202023177607.7, this utility model discloses a pressing device for producing metallized polypropylene film, including a machine body. A first drive motor is provided on one side of the outer surface of the machine body. A transmission shaft is fixedly connected to the drive end of the first drive motor, and the transmission shaft extends vertically through the outer surface of the machine body into the interior. A turntable is fixedly connected to the end of the transmission shaft away from the first drive motor. A protrusion is fixedly connected to the side of the turntable away from the transmission shaft. A stroke frame is provided on the outer surface of the protrusion, and a first stroke rod is fixedly connected to the top of the stroke frame. In this utility model, by setting up a first drive motor, transmission shaft, turntable, protrusion, stroke frame, first stroke rod, second stroke rod, first slider, and second slider, starting the motor, through the cooperation of each component, drives the heating plate and pressing strip to reciprocate, pressing the metallized polypropylene film edge-to-edge without manual pressing, and effectively improving production efficiency.

[0004] Based on the above, in the hot pressing and shaping process of metallized polypropylene film edges, the hot press plate often sticks to the film edge or surface after hot pressing. This sticking phenomenon is closely related to the enhanced intermolecular forces between the metal layer on the film surface, the polypropylene substrate, and the hot press plate material at high temperatures during hot pressing. Frequent sticking problems increase the frequency of manual intervention, leading to longer downtime and reduced production efficiency. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a metallized polypropylene film production edge pressing device. This device solves the problem of adhesion between the hot press plate and the film edge or surface after hot pressing, which often occurs in the existing hot pressing and shaping process of metallized polypropylene film edges. This adhesion phenomenon is closely related to the enhanced intermolecular forces between the metal layer on the film surface, the polypropylene substrate, and the hot press plate material at high temperatures during hot pressing. Frequent adhesion problems increase the frequency of manual intervention, leading to prolonged downtime and reduced production efficiency.

[0006] The purpose and effectiveness of this utility model's edge-pressing device for producing metallized polypropylene film are achieved through the following specific technical means:

[0007] An edge-pressing device for producing metallized polypropylene film includes a worktable, a shielding cover, an extrusion plate, a placement plate, pressing cylinders, piston rods, a transmission box, an anti-adhesion component, and a limiting component. The shielding cover is fixedly connected to the worktable. The extrusion plate is fixedly connected to the worktable. The placement plate is fixedly connected to the worktable. Two pressing cylinders are provided, and the two pressing cylinders are separately fixedly connected to the shielding cover. Two piston rods are provided, and the two piston rods are separately slidably connected inside the pressing cylinders. Two transmission boxes are provided, and the two transmission boxes are separately fixedly connected to the shielding cover. The anti-adhesion component is located above the worktable. The limiting component is located inside the extrusion plate.

[0008] Furthermore, the anti-adhesion assembly includes: a hot press plate and a first transmission rack; the hot press plate is fixedly connected to the bottom of two piston rods; two first transmission racks are provided, and the two first transmission racks are dispersedly and fixedly connected to the hot press plate.

[0009] Furthermore, the anti-adhesion assembly also includes: a first drive shaft and a first drive gear; two first drive shafts are provided, and the two first drive shafts are rotatably connected inside the two drive boxes respectively; two first drive gears are provided, and the two first drive gears are coaxially fixedly connected to the outside of the two first drive shafts respectively, and the two first drive gears mesh with the two first drive racks respectively.

[0010] Furthermore, the anti-adhesion assembly also includes: a sliding block, a connecting rod, and a second transmission rack; two sliding blocks are provided, and the two sliding blocks are slidably connected inside the shield; the connecting rod is fixedly connected to the inner side of the two sliding blocks; two second transmission racks are provided, and the two second transmission racks are fixedly connected to the connecting rod, and the two second transmission racks respectively mesh with two first transmission gears.

[0011] Furthermore, the anti-adhesion component also includes: an arc-shaped pressing block; the bottom of the arc-shaped pressing block has an arc surface structure, and the arc-shaped pressing block is fixedly connected to the bottom of the connecting rod.

[0012] Furthermore, the limiting component includes: a connecting spring and a limiting plate; multiple connecting springs are provided, and the bottoms of the multiple connecting springs are dispersedly and fixedly connected inside the extrusion plate; the limiting plate is slidably connected inside the extrusion plate, and the limiting plate is fixedly connected to the tops of the multiple connecting springs.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] First, when the hot press plate rises after the edge pressing is completed, the anti-adhesion component automatically drives the arc-shaped pressing block to move downward, squeezing and separating the film that may be stuck under the hot press plate, avoiding inconvenience in handling and reducing the frequency of manual intervention. The arc-shaped structure design of the pressing plate and the placement plate near the end can prevent the arc-shaped pressing block from damaging the film when it is pressed down, ensuring production quality.

[0015] Secondly, when the connecting spring is in the relaxed state, it will push the limiting plate out of the extrusion plate. When the film is placed, its rear end face is in contact with the limiting plate, which can prevent the film from being placed too far back. When the hot press plate presses down to perform the edge pressing operation, the limiting plate will be completely pressed into the extrusion plate, which will not affect the edge pressing action.

[0016] In the edge pressing operation, the hot pressing plate automatically drives the arc-shaped pressing block to press down when it rises, which can automatically separate the film that may stick together, avoid inconvenience in handling and reduce manual intervention, and improve production efficiency. At the same time, the connecting spring causes the limiting plate to extend out of the extrusion plate when the film is placed. The limiting plate achieves precise positioning by adhering to the rear end face of the film, avoiding placement too far back and ensuring product quality. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the placement plate structure of this utility model.

[0019] Figure 3 This is a schematic diagram of the connecting rod structure of this utility model.

[0020] Figure 4 This is a schematic diagram of the extrusion plate structure of this utility model.

[0021] Figure 5 This is a schematic diagram of the limiting plate structure of this utility model.

[0022] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0023] 1. Workbench; 101. Shielding cover; 102. Extrusion plate; 103. Placement plate; 2. Pressing cylinder; 201. Piston rod; 3. Hot press plate; 4. Transmission box; 5. First transmission rack; 6. First transmission shaft; 601. First transmission gear; 7. Sliding block; 701. Connecting rod; 702. Second transmission rack; 703. Arc-shaped pressing block; 8. Connecting spring; 9. Limiting plate. Detailed Implementation

[0024] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0025] Example 1:

[0026] As attached Figure 1 To be continued Figure 5 As shown:

[0027] This utility model provides a pressing device for producing metallized polypropylene film, including a workbench 1, a shielding cover 101, an extrusion plate 102, a placement plate 103, pressing cylinders 2, piston rods 201, transmission boxes 4, and an anti-adhesion assembly; the shielding cover 101 is fixedly connected to the workbench 1; the extrusion plate 102 is fixedly connected to the workbench 1; the placement plate 103 is fixedly connected to the workbench 1; two pressing cylinders 2 are provided, and the two pressing cylinders 2 are separately fixedly connected to the shielding cover 101; two piston rods 201 are provided, and the two piston rods 201 are separately slidably connected inside the pressing cylinders 2; two transmission boxes 4 are provided, and the two transmission boxes 4 are separately fixedly connected to the shielding cover 101; the anti-adhesion assembly is located above the workbench 1.

[0028] The anti-adhesion component includes a hot press plate 3 and a first transmission rack 5. The hot press plate 3 is fixedly connected to the bottom of the two piston rods 201. Two first transmission racks 5 are provided, and the two first transmission racks 5 are separately fixedly connected to the hot press plate 3.

[0029] The anti-adhesion assembly also includes: a first drive shaft 6 and a first drive gear 601; two first drive shafts 6 are provided, and the two first drive shafts 6 are rotatably connected inside the two drive boxes 4 respectively; two first drive gears 601 are provided, and the two first drive gears 601 are coaxially fixedly connected to the outside of the two first drive shafts 6 respectively, and the two first drive gears 601 mesh with the two first drive racks 5 respectively.

[0030] The anti-adhesion assembly also includes: a sliding block 7, a connecting rod 701, and a second transmission rack 702; two sliding blocks 7 are provided, and the two sliding blocks 7 are slidably connected inside the shield 101; the connecting rod 701 is fixedly connected to the inner side of the two sliding blocks 7; two second transmission racks 702 are provided, and the two second transmission racks 702 are fixedly connected to the connecting rod 701, and the two second transmission racks 702 respectively mesh with two first transmission gears 601.

[0031] The anti-adhesion component also includes: an arc-shaped pressing block 703; the bottom of the arc-shaped pressing block 703 has an arc surface structure, and the arc-shaped pressing block 703 is fixedly connected to the bottom of the connecting rod 701.

[0032] The specific usage and function of this embodiment are as follows: In use, the metallized polypropylene film is first placed on the extrusion plate 102 and the placement plate 103. Then, the pressing cylinder 2 is started, and the piston rod 201 drives the hot pressing plate 3 to move downward, thereby performing the edge pressing operation on the film. After the edge pressing is completed, the hot pressing plate 3 moves upward. During the process, the first transmission shaft 6 is driven to rotate through the gear and rack transmission mechanism composed of the first transmission rack 5 and the first transmission gear 601. The first transmission shaft 6 drives the sliding block 7 and the connecting rod 701 to move downward through the gear and rack transmission mechanism composed of the second transmission rack 702 and the two first transmission gears 601. If the film is stuck to the bottom of the hot pressing plate 3, the arc-shaped pressing block 703 moves downward when the hot pressing plate 3 rises. The arc-shaped pressing block 703 can squeeze the film off, avoiding the difficulty of picking it up caused by adhesion. The extrusion plate 102 and the placement plate 103 are both arc-shaped structures at their near ends, which can prevent the arc-shaped pressing block 703 from crushing the film.

[0033] Example 2:

[0034] Based on Example 1, as shown in the appendix Figure 1 To be continued Figure 5 As shown, it also includes a limiting component, which is disposed inside the extrusion plate 102.

[0035] The limiting component includes: a connecting spring 8 and a limiting plate 9; multiple connecting springs 8 are provided, and the bottom of the multiple connecting springs 8 are dispersedly and fixedly connected inside the extrusion plate 102; the limiting plate 9 is slidably connected inside the extrusion plate 102, and the limiting plate 9 is fixedly connected to the top of the multiple connecting springs 8.

[0036] The specific usage and function of this embodiment are as follows: When the connecting spring 8 is in the relaxed state, it will push the limiting plate 9 out of the extrusion plate 102 by a part. When the film is placed on the extrusion plate 102 and the placement plate 103, the rear end face of the film is in contact with the limiting plate 9, which can prevent the film from being placed too far back. When the hot press plate 3 moves downward to gradually perform the edge pressing operation on the film, the hot press plate 3 can press the limiting plate 9 completely into the extrusion plate 102 without affecting the edge pressing operation. When the edge pressing is finished and the hot press plate 3 rises, the limiting plate 9 rises under the rebound action of the connecting spring 8, which facilitates the limiting of the next film.

[0037] The following points should be noted in this article:

[0038] 1. The accompanying drawings of this embodiment only involve the structures involved in this embodiment; other structures can refer to the general design.

[0039] 2. Where there is no conflict, this embodiment and the features in the embodiment can be combined with each other to obtain new embodiments.

[0040] The above are merely specific implementations of this embodiment, but the protection scope of this embodiment is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this embodiment should be included within the protection scope of this embodiment. Therefore, the protection scope of this embodiment should be determined by the protection scope of the claims.

Claims

1. A metallized polypropylene film production edge pressing device, comprising a worktable (1), a shielding cover (101), an extrusion plate (102), a placement plate (103), a pressing cylinder (2), a piston rod (201), a transmission box (4), an anti-adhesion component, and a limiting component; wherein the shielding cover (101) is fixedly connected to the worktable (1); characterized in that: The extrusion plate (102) is fixedly connected to the workbench (1); the placement plate (103) is fixedly connected to the workbench (1); two pressing cylinders (2) are provided, and the two pressing cylinders (2) are separately fixedly connected to the shielding cover (101); two piston rods (201) are provided, and the two piston rods (201) are separately slidably connected inside the pressing cylinders (2); two transmission boxes (4) are provided, and the two transmission boxes (4) are separately fixedly connected to the shielding cover (101); the anti-adhesion component is provided above the workbench (1); the limiting component is provided inside the extrusion plate (102).

2. The edge-pressing device for producing metallized polypropylene film as described in claim 1, characterized in that: The anti-adhesion assembly includes: a hot press plate (3) and a first transmission rack (5); the hot press plate (3) is fixedly connected to the bottom of two piston rods (201); two first transmission racks (5) are provided, and the two first transmission racks (5) are dispersedly and fixedly connected to the hot press plate (3).

3. The edge-pressing device for producing metallized polypropylene film as described in claim 2, characterized in that: The anti-adhesion assembly further includes: a first drive shaft (6) and a first drive gear (601); two first drive shafts (6) are provided, and the two first drive shafts (6) are rotatably connected inside the two drive boxes (4); two first drive gears (601) are provided, and the two first drive gears (601) are coaxially fixedly connected to the outside of the two first drive shafts (6), and the two first drive gears (601) mesh with the two first drive racks (5).

4. The edge-pressing device for producing metallized polypropylene film as described in claim 3, characterized in that: The anti-adhesion assembly further includes: a sliding block (7), a connecting rod (701), and a second transmission rack (702); two sliding blocks (7) are provided, and the two sliding blocks (7) are slidably connected inside the shield (101); the connecting rod (701) is fixedly connected to the inner side of the two sliding blocks (7); two second transmission racks (702) are provided, and the two second transmission racks (702) are fixedly connected to the connecting rod (701), and the two second transmission racks (702) respectively mesh with two first transmission gears (601).

5. The metallized polypropylene film production edge pressing device as described in claim 4, characterized in that: The anti-adhesion component also includes: an arc-shaped pressing block (703); the bottom of the arc-shaped pressing block (703) is an arc surface structure, and the arc-shaped pressing block (703) is fixedly connected to the bottom of the connecting rod (701).

6. The edge-pressing device for producing metallized polypropylene film as described in claim 1, characterized in that: The limiting component includes: a connecting spring (8) and a limiting plate (9); multiple connecting springs (8) are provided, and the bottoms of the multiple connecting springs (8) are dispersedly and fixedly connected inside the extrusion plate (102); the limiting plate (9) is slidably connected inside the extrusion plate (102), and the limiting plate (9) is fixedly connected to the tops of the multiple connecting springs (8).

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