Polyimide film multi-layer composite pressing device

Abstract

The utility model discloses a polyimide film multilayer composite pressing device, which relates to the field of film pressing devices and comprises a bottom plate, a vertical rail is fixed at the top end of the bottom plate, a moving mechanism is in sliding fit with the vertical rail, a lower pressing plate is arranged at the bottom of the moving mechanism, and a plurality of second protruding balls are arranged at the bottom end of the lower pressing plate in a telescopic manner. The telescopic piece can support the pressing box, when the pressing plate is pressed downwards, the telescopic piece can be extruded to retract, so that the pressing box is attached to the bottom heating block, heat generated by the electric heating rod can be transmitted to the pressing box at the moment, a polyimide film in the pressing box is heated, the film can be softened, and the polyimide film can be heated and softened. And after press fit is completed, the lower pressing plate ascends, the elastic force of the telescopic piece drives the press fit box to ascend, and therefore the press fit box is controlled to be away from the bottom heating block, cooling is rapidly conducted, and continuous heat transfer is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of film compression device, especially to a polyimide film multilayer composite pressing device. BACKGROUND

[0002] Polyimide film (PI film) is a new type of high temperature resistant organic polymer film, and is one of the first polyimide commodities, which has excellent mechanical properties, electrical properties, chemical stability and high temperature resistance, and can be used for a long time in the temperature range of -269 DEG C to 400 DEG C, and is particularly suitable for being used as flexible printed circuit board substrate and various high temperature resistant motor and electrical insulation materials.

[0003] During the processing of the polyimide film, excess corner materials are generated, and with the increase of the corner materials, production space is occupied, and inconvenience is caused.

[0004] Therefore, it is necessary to provide a polyimide film multilayer composite pressing device to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model discloses a polyimide film multilayer composite pressing device, which solves the problem that polyimide film generates excess corner materials during processing, occupies production space and causes inconvenience with the increase of the corner materials.

[0006] To achieve the above object, the utility model provides the following technical scheme: a polyimide film multilayer composite pressing device, which comprises a bottom plate, the top end of the bottom plate is fixed with an upright rail, the movable mechanism is slidably connected to the upright rail, the bottom of the movable mechanism is provided with a lower pressing plate, and the bottom end of the lower pressing plate is provided with a plurality of second protruding balls in an extension mode.

[0007] The bottom of the lower pressing plate is provided with a bottom heating block, the bottom end of the bottom heating block is provided with a groove, the extension piece is fixedly connected in the groove, the pressing box is placed at the top end of the extension piece, and the bottom end of the pressing box is provided with a plurality of first protruding balls in an extension mode.

[0008] Preferably, the movable mechanism comprises a lifting frame, the lifting frame is slidably arranged on the upright rail, the top end of the lifting frame is fixed with an air cylinder, the bottom of the air cylinder is provided with an extension end, the extension end extends out of the lifting frame, the bottom of the extension end is fixed with a connecting frame, and the lower pressing plate is fixedly connected to the bottom end of the connecting frame.

[0009] Preferably, the pressing box and the lower pressing plate are provided with extension grooves on opposite sides, the first spring is fixed in the extension groove, and the first spring is fixedly connected with the corresponding first protruding ball and second protruding ball.

[0010] Preferably, the bottom heating block is fixedly provided with an electric heating rod.

[0011] Preferably, the side of the pressing box is provided with a through slot, and the side of the top end of the bottom heating block is fixedly connected with a protruding block, and the protruding block is inserted into the inside of the through slot.

[0012] Preferably, the telescopic part comprises a second spring and a telescopic rod, and the second spring is sleeved outside the telescopic rod.

[0013] The technical effects and advantages of the present application are as follows:

[0014] 1. The telescopic part can support the pressing box. When the lower pressing plate is pressed down, the telescopic part is squeezed to retract, so that the pressing box and the bottom heating block are attached. At this time, the heat generated by the electric heating rod can be transmitted to the pressing box, and the polyimide film inside the pressing box can be heated to soften the film, so that the films can be more closely connected, the moisture and air between the films are reduced, and the subsequent processing is facilitated. When the pressing is completed, the lower pressing plate rises, and the elastic force of the telescopic part drives the pressing box to rise, so that the pressing box is controlled to move away from the bottom heating block, rapid cooling is performed, the continuous transmission of heat is reduced, and through the preheating treatment, the temperature of the edge material itself can be directly used for alkalization reaction, without the need of heating the lye.

[0015] 2. In the actual operation of the present application, during the pressing process of the lower pressing plate and the pressing box, the film and the first protruding ball and the second protruding ball are in extrusion contact, and the extrusion force can make the first protruding ball and the second protruding ball retract into the corresponding telescopic groove, so as to avoid affecting the planar pressing between the lower pressing plate and the pressing box. When the pressing is completed, the first protruding ball and the second protruding ball lose the extrusion force and automatically pop out, forming a protrusion on the opposite side of the lower pressing plate and the pressing box, so as to avoid the adhesion between the film in the planar state after pressing and the lower pressing plate and the bottom end of the pressing box, and play a role of separation. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is a structural schematic view of the polyimide film multi-layer composite pressing device.

[0017] Fig. 2 It is a structural schematic view of the through slot and the protruding block.

[0018] Fig. 3 It is a structural schematic view of the telescopic part and the electric heating rod.

[0019] In the figure: 1, bottom plate; 2, vertical rail; 3, air cylinder; 4, lifting frame; 5, connecting frame; 6, lower pressing plate; 7, bottom heating block; 8, pressing box; 9, first protruding ball; 10, second protruding ball; 11, through slot; 12, protruding block; 13, telescopic part; 14, electric heating rod; 15, first spring; 16, telescopic rod; 17, second spring. DETAILED DESCRIPTION

[0020] The utility model provides a kind of polyimide film multilayer composite pressing device as Figs. 1-3 As shown in a kind of polyimide film multilayer composite pressing device, including bottom plate 1, bottom plate 1 top end is fixed with vertical rail 2, sliding fit has moving mechanism on vertical rail 2, moving mechanism bottom is provided with lower pressing plate 6, the moving mechanism includes lifting frame 4, lifting frame 4 is slidably arranged on vertical rail 2, lifting frame 4 top end is fixed with air cylinder 3, air cylinder 3 bottom is provided with telescopic end, telescopic end extends lifting frame 4, and telescopic end bottom is fixed with connecting frame 5, lower pressing plate 6 is fixedly connected to the bottom end of connecting frame 5.

[0021] In the actual operation of the utility model, lifting frame 4 can slide up and down on vertical rail 2, so as to adjust the height of lifting frame 4, specifically, vertical rail 2 can use electric sliding rail, the moving height of lifting frame 4 is controlled by electricity.

[0022] Polyimide film scrap can be alkalized, acidified, then washed, dried, and finally dissolved in solvent to prepare a resin solution. This method has high recovery rate, simple process, low cost and no environmental pollution. Before alkalization, the scrap needs to be extruded to reduce its volume and save space.

[0023] Specifically, the polyimide film waste is immersed in an alkali solution with a temperature of 5-50℃ and a concentration of 1.5-10N for 5-30 hours, then immersed in an acid solution with a temperature of 5-50℃ and a concentration of 0.5-5N for 1-20 hours, taken out, washed, and then vacuum dried. The dried polyimide film is dissolved in solvent to obtain a resin solution for manufacturing polyimide.

[0024] Therefore, a bottom heating block 7 is arranged below the lower pressing plate 6, a groove is formed in the bottom end of the bottom heating block 7, a telescopic piece 13 is fixedly connected in the groove, the telescopic piece 13 includes a second spring 17 and a telescopic rod 16, the second spring 17 is sleeved on the outer side of the telescopic rod 16, a pressing box 8 is placed on the top end of the telescopic piece 13, a placing groove is formed in the top end of the pressing box 8, the bottom end of the lower pressing plate 6 extends into the placing groove, and an electric heating rod 14 is fixed in the bottom heating block 7.

[0025] In specific use, the excess scrap of polyimide film during production is placed in the placing groove, i.e. in the pressing box 8. By starting the air cylinder 3, the air cylinder 3 drives the lower pressing plate 6 to descend, thereby pressing the multiple polyimide film scraps together, reducing the occupied space of the polyimide film scraps, and facilitating the reduction of volume and subsequent alkalization and acidification treatment for recycling.

[0026] Since the telescopic piece 13 can support the pressing box 8, when the lower pressing plate 6 is pressed down, the telescopic piece 13 is squeezed to retract, so that the pressing box 8 and the bottom heating block 7 are attached, at this time, the heat generated by the electric heating rod 14 can be transmitted to the pressing box 8, and the polyimide film scraps inside the pressing box 8 can be heated, the polyimide film scraps can be softened, the films can be more closely attached, and the moisture and air between the films can be reduced, so that the subsequent alkalization treatment is facilitated.

[0027] When the pressing is completed, the lower pressing plate 6 is lifted, the elastic force of the telescopic piece 13 drives the pressing box 8 to rise, so that the pressing box 8 is controlled to move away from the bottom heating block 7, rapid cooling is performed, and the continuous transmission of heat is reduced.

[0028] The bottom end of the lower pressing plate 6 is telescopically provided with a plurality of second protruding balls 10, and the bottom end inside the pressing box 8 is telescopically provided with a plurality of first protruding balls 9, specifically, the pressing box 8 and the lower pressing plate 6 are provided with telescopic grooves on opposite sides, the first spring 15 is fixed in the telescopic groove, and the first spring 15 is fixedly connected with the corresponding first protruding ball 9 and second protruding ball 10.

[0029] In the actual operation of the utility model, in the pressing process of the lower pressing plate 6 and the pressing box 8, the film and the first protruding ball 9 and the second protruding ball 10 are extruded and contacted, the extrusion force can make the first protruding ball 9 and the second protruding ball 10 retract into the corresponding telescopic groove, so as to avoid affecting the planar pressing between the lower pressing plate 6 and the pressing box 8, when the pressing is completed, the first protruding ball 9 and the second protruding ball 10 lose the extrusion force and automatically pop out, so as to avoid the adhesion between the pressed film and the lower pressing plate 6 and the bottom end of the pressing box 8, and play a role of separation.

[0030] The side of the pressing box 8 is provided with a through groove 11, and the side of the top end of the bottom heating block 7 is fixedly connected with a protruding block 12, the protruding block 12 is inserted into the inside of the through groove 11, so as to facilitate the butt joint of the pressing box 8 and the bottom heating block 7.

Claims

1. A polyimide film multilayer composite pressing device, comprising a base plate (1), characterized in that: The top of the base plate (1) is fixed with a vertical rail (2), and a moving mechanism is slidably fitted on the vertical rail (2). A lower pressure plate (6) is provided at the bottom of the moving mechanism, and multiple second protruding balls (10) are provided at the bottom end of the lower pressure plate (6). A bottom heating block (7) is provided below the lower pressure plate (6). A groove is provided at the bottom end of the bottom heating block (7). A telescopic component (13) is fixedly connected in the groove. A pressing box (8) is placed at the top of the telescopic component (13). Multiple first protruding balls (9) are telescopically provided at the bottom end of the pressing box (8).

2. The polyimide film multilayer composite pressing device according to claim 1, characterized in that: The moving mechanism includes a lifting frame (4), which is slidably mounted on a vertical rail (2). A cylinder (3) is fixed at the top of the lifting frame (4), and a telescopic end is provided at the bottom of the cylinder (3). The telescopic end extends out of the lifting frame (4), and a connecting frame (5) is fixed at the bottom of the telescopic end. The lower pressure plate (6) is fixedly connected to the bottom of the connecting frame (5).

3. The polyimide film multilayer composite pressing device according to claim 1, characterized in that: The pressing box (8) and the lower pressing plate (6) are provided with telescopic grooves on opposite sides. A first spring (15) is fixed inside the telescopic groove. The first spring (15) is fixedly connected to the corresponding first protruding ball (9) and second protruding ball (10).

4. The polyimide film multilayer composite pressing device according to claim 1, characterized in that: An electric heating rod (14) is fixed inside the bottom heating block (7).

5. The polyimide film multilayer composite pressing device according to claim 1, characterized in that: The side of the pressing box (8) is provided with a through groove (11), and a protruding block (12) is fixedly connected to the side of the top of the bottom heating block (7). The protruding block (12) is inserted into the inside of the through groove (11).

6. The polyimide film multilayer composite pressing device according to claim 1, characterized in that: The telescopic component (13) includes a second spring (17) and a telescopic rod (16), with the second spring (17) sleeved on the outside of the telescopic rod (16).

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