CN212919714U

CN212919714U - PC sheet material preforming blanking die and device thereof

Info

Publication number: CN212919714U
Application number: CN202020940585.6U
Authority: CN
Inventors: 孙海波; 毛宇剑; 赵晓云
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-28
Filing date: 2020-05-28
Publication date: 2021-04-09
Anticipated expiration: 2030-05-28

Abstract

The utility model relates to a PC sheet preforming blanking mould and device thereof tears the separation inconvenience with the rim charge to the automobile PC sheet and protection film processing of the bilayer structure of the same kind now, automatic technical problem who tailors the rim charge behind the difficult stamping forming and designs. The device comprises a mould, a fixed mould and a movable mould, wherein the fixed mould is fixed on a workbench, and a starting button is arranged on one side of the operating position of the workbench; the movable mould is positioned above the fixed forming mould, the control cabinet is positioned above the movable mould, four end corners of the fixed forming mould are respectively provided with a positioning hole, the positioning holes of the fixed forming mould are provided with a guide pillar corresponding to the movable mould, a heating assembly is arranged outside the other side of the operating position symmetry of the workbench between the fixed forming mould and the movable mould, and two sides of the heating assembly are arranged between the slide rails on the two sides through the placing rack. Thereby PC sheet preforming and blanking back, PC sheet and rim charge separation are convenient, are convenient for the later stage simultaneously and realize the automatic of protection film and tear.

Description

PC sheet material preforming blanking die and device thereof

Technical Field

The utility model relates to a blanking forming die of diaphragm is a PC sheet preforming blanking die and device thereof.

Background

The PC sheet material, also called polycarbonate sheet material, is an amorphous, odorless, nontoxic and highly transparent colorless or yellowish thermoplastic engineering plastic, generally is a sheet material in the plastic industry with the thickness of more than 0.25 mm to 5.0 mm, and belongs to a colorless and transparent amorphous thermoplastic material. Some existing PC sheets are of a double-layer structure, namely, the surface of the PC sheet is covered with a layer of protective film made of the same material, and some PC sheets are preformed and then used for in-mold injection molding production of automotive upholsteries. The existing membrane blanking technology is disclosed as application number 201711331889.1 published in Chinese patent literature, application publication date 2019.06.21, and the invention name is 'an IMR forming PET membrane blanking die and a using method thereof'; the invention is named as 'an automobile central control IMF membrane blanking die' according to the application number 201811580169.3 published in Chinese patent document, application publication No. 2019.04.16. However, the similar products are not necessarily suitable for PC sheets, and meanwhile, the existing process and related processing equipment are that after the PC sheets are preformed and blanked, the formed PC sheet protective film is manually torn off, so that the production efficiency is low, and the manual link restricts the automation of the production of automotive upholstery.

Disclosure of Invention

In order to overcome the defects, the utility model aims to provide a PC sheet preforming blanking die and device thereof for automatically cutting off rim charge after PC sheet preforming, which make the PC sheet and the protective film of the automobile with the same type of double-layer structure solve the problem that the separation is inconvenient and the rim charge is torn off and the technical problem of automatically cutting off the rim charge after difficult stamping forming is solved. The purpose is realized by the following technical scheme.

The utility model provides a PC sheet preforming blanking mould and device thereof, the device's mould includes the shaping stationary mould and moves the mould, the center of shaping stationary mould is equipped with the shaping groove, moves the mould and is equipped with bellied die head, and the shaping stationary mould is fixed in the workstation, and operating position one side of workstation is equipped with start button, moves the mould and passes through the ejector pin and connect the pneumatic assembly in the switch board, and the switch board is equipped with control button, and the ejector pin of moving the mould passes through the pneumatic assembly and drives to the shaping stationary mould and remove the stamping forming operation to PC sheet material on the shaping stationary mould. The movable mould is located above the fixed forming mould, the control cabinet is located above the movable mould, the fixed forming mould is rectangular, four end corners of the fixed forming mould are respectively provided with a positioning hole, the positioning holes of the fixed forming mould are provided with a guide pillar corresponding to the movable mould, a heating assembly is arranged outside the other side of the symmetrical operation position of the workbench between the fixed forming mould and the movable mould, and two sides of the heating assembly are arranged between slide rails on two sides through the placing frame. Thereby adjust the control button who sets up the switch board, put into the shaping fixed mould with PC sheet raw materials earlier, put into the protection film with the surface of PC sheet raw materials again, put into heating element in the protection film top of PC sheet raw materials after that, trigger the start button, open the movable mould after the completion, can obtain the shaping PC sheet.

The notch of slide rail is respectively downwards, and the bottom of slide rail sets up respectively in the inboard bottom of mounting panel, and the outside bottom both ends of mounting panel are equipped with the cylinder ejector pin that the symmetry set up, and the cylinder ejector pin passes through the trachea to be connected with the pneumatic valve in the switch board. The heating assembly is convenient to take out after being pulled out through the sliding rail and is pushed away after being put in, the heating assembly is prevented from being placed to interfere the use of the device, and the height of the mounting plate is adjusted through the cylinder ejector rod.

The bottom of the forming fixed mold of the workbench is provided with a bottom plate, the bottom bilateral symmetry of the bottom plate is provided with supporting blocks, the bottom plate is connected with the supporting blocks into a whole, the supporting blocks and the bottom plate are clamped and fixed through side fixtures at least arranged in bilateral symmetry, one end of an L-shaped clamp body of each side fixture is fixed on the workbench, a step end angle of the other end of each side fixture is fixedly abutted to the forming fixed mold, the bottom plate and the supporting blocks, a locking block is arranged at the top of the L-shaped clamp body between each side fixture and the workbench, the locking block penetrates through the L-shaped clamp body through a screw rod and is fixed on the workbench. Thereby through the shaping fixed die on the side anchor clamps fixed work platform, place the shaping fixed die through bottom plate and supporting shoe.

The waist-shaped column is arranged on one side of the forming groove on the inner side of the positioning hole of the forming fixed die, the positioning pin is arranged on the peripheral plane of the forming groove, the height of the positioning pin is smaller than that of the waist-shaped column, and the waist-shaped column and the positioning pin of the forming fixed die are inserted into the hole groove corresponding to the movable die. The structure is convenient for limiting the PC sheet raw material through the waist-shaped column when the PC sheet raw material is put in, and positioning the punching plane of the PC sheet raw material through the positioning pin.

The right side position of the movable mould is lower than 1cm in length downwards. Therefore, on the basis that the forming fixed die is kept unchanged, the height of the movable die is slightly and gradually reduced at the right side, the clearance between the male die and the female die is properly reduced at the position of further reducing the height, namely, the separation of the preformed sheet and the rim charge of the PC sheet is realized by adjusting the local height of the male die, and the protective film covered by the PC sheet is continuous at the designated position.

PC sheet raw materials stamping forming and tear the shaping PC sheet of rim charge and be the trapezoidal PC sheet on both sides hypotenuse for the arc limit, the end angle of shaping PC sheet is equipped with the chamfer respectively, and the centre of shaping PC sheet is equipped with the rectangular hole of taking the chamfer, and the shaping PC sheet is arched to a side plane punching press, and the surface of shaping PC sheet is equipped with the protection film. The later stage of the protective film in the molded PC sheet made by the device is automatically torn off conveniently, and most of the protective film of the molded PC sheet is separated and only a small section is continuous.

The device of the utility model has reasonable structural design, simple operation, convenient adjustment and installation, and accurate positioning and placement of the PC sheet in the die; the punching die is suitable for being used as a PC sheet preforming punching die and a device thereof, or improving the structure of the like products.

Drawings

Fig. 1 is a schematic view of a table part of the present invention.

Fig. 2 is a schematic diagram of the structure of the formed PC sheet according to the present invention.

The names of the sequence numbers in the figure are: 1. the device comprises a workbench, 2 a side clamp, 3 a forming fixed die, 4 a sliding rail, 5 a movable die, 6 a control cabinet, 7 a baffle, 8 a heating assembly, 9 a mounting plate, 10 a placing frame, 11 and a forming PC sheet.

Detailed Description

The invention will now be further described with reference to the accompanying drawings. As shown in figures 1 and 2, the device's mould includes the shaping stationary mould 3 and moves mould 5, the center of shaping stationary mould is equipped with the shaping groove, moves the mould and is equipped with bellied die head, and the shaping stationary mould is fixed in workstation 1, and operating position one side of workstation is equipped with start button, moves the mould and passes through the ejector pin and connect the pneumatic assembly in switch board 6, and the switch board is equipped with control button, and the ejector pin of moving the mould passes through pneumatic assembly and drives to the shaping stationary mould and remove the stamping forming operation to PC sheet material on the shaping stationary mould. The concrete structure is as follows: the movable mould is located above the fixed forming mould, the control cabinet is located above the movable mould, the fixed forming mould is rectangular, four end corners of the fixed forming mould are respectively provided with a positioning hole, the positioning hole of the fixed forming mould is provided with a guide pillar corresponding to the movable mould, the other side of the symmetrical operation position of the workbench between the fixed forming mould and the movable mould is externally provided with a heating assembly 8, and two sides of the heating assembly are arranged between the slide rails 4 of the two sides through the placing frame 10. The notches of the slide rails are downward respectively, the bottoms of the slide rails are arranged at the bottom of the inner side of the mounting plate 9 respectively, symmetrically arranged cylinder ejector rods are arranged at two ends of the bottom of the outer side of the mounting plate, and the cylinder ejector rods are connected with a pneumatic valve in the control cabinet through air pipes; a baffle 7 is arranged on one side of the workbench below the control cabinet.

The mould bottom is decided in the shaping of above-mentioned workstation is equipped with the bottom plate, the bottom bilateral symmetry of bottom plate is equipped with the supporting shoe, the bottom plate is even as an organic whole with the supporting shoe, 2 centre grippings of side anchor clamps that supporting shoe and bottom plate set up through bilateral symmetry are fixed, the L type clamp one end of side anchor clamps is fixed in the workstation, the step end angle and the shaping of the other end decide the mould, the bottom plate, the supporting shoe offsets fixedly, L type clamp top between side anchor clamps and the workstation is equipped with the locking piece, the locking piece passes L type clamp through the screw rod and is fixed in the workstation, the screw rod department of locking piece is equipped with. A protruding waist-shaped column is arranged on one side of the forming groove on the inner side of the positioning hole of the forming fixed die, a positioning pin is arranged on the peripheral plane of the forming groove, the height of the positioning pin is smaller than that of the waist-shaped column, and the waist-shaped column and the positioning pin of the forming fixed die are inserted into the hole groove corresponding to the movable die.

The molded PC sheet 11 formed by punching and tearing off the raw material of the PC sheet is a trapezoidal PC sheet with oblique edges at two sides being arc edges, the end corners of the molded PC sheet are respectively provided with a chamfer, the middle of the molded PC sheet is provided with a rectangular hole with the chamfer, the molded PC sheet is arched towards a plane at one side by punching, and the surface of the molded PC sheet is provided with a protective film.

The die and the device thereof relate to an improved scheme design of a PC sheet material preforming blanking die, and the automatic operation of tearing off a PC sheet material protective film in the later period is realized according to the production requirement of the PC sheet material used for automotive interior parts. The specific design is as follows: the protection film after will heating and PC sheet material are the punching shaping of pressurizeing together to combine the PC sheet material preforming to need to tear the needs of removing the protection film after the blanking, through the convex-concave mould clearance and the height of optimizing current mould structure, accomplish PC sheet material three-dimensional forming smoothly, realize that the protection film that covers on the PC sheet material surface after the shaping is most separated, only a small segment is continuous, makes things convenient for the automation of later stage protection film to tear and removes. Compared with the similar products, the die and the device thereof have the advantages that the difficult problems that the sticking protective film is difficult to peel off and needs to be manually torn off after the three-dimensional curved surface is blanked in the IMD process are effectively solved, and the possibility is provided for the whole-process automation of the automobile interior trim part in the later period. The operation process comprises the following steps: mold in a closed state → mold opening for placing the PC sheet and the protective film → placing the heating element → starting → baking and pressing down → mold opening for taking out the heating element and the sheet. Therefore, the whole production of the injection molding in the automotive upholstery mold in the similar products can realize the whole streamlined operation, and the production efficiency is improved; after the PC sheet material is preformed and blanked, the PC sheet material is convenient to separate from the rim charge, and meanwhile, the automatic tearing of the protective film is convenient to realize in the later stage.

Claims

1. A PC sheet preforming blanking die and a device thereof, wherein the die of the device comprises a forming fixed die (3) and a movable die (5), a forming groove is formed in the center of the forming fixed die, the movable die is provided with a raised die head, the forming fixed die is fixed on a workbench (1), a starting button is arranged on one side of the operating position of the workbench, the movable die is connected with a pneumatic assembly in a control cabinet (6) through a mandril, the control cabinet is provided with control keys, and the mandril of the movable die is driven by the pneumatic assembly to move towards the forming fixed die so as to perform punch forming operation on PC sheet raw materials on the forming fixed die; the automatic forming machine is characterized in that the movable die (5) is located above the forming fixed die (3), the control cabinet (6) is located above the movable die, the forming fixed die is rectangular, four end corners of the forming fixed die are respectively provided with a positioning hole, the positioning holes of the forming fixed die are provided with a guide pillar corresponding to the movable die, a heating assembly (8) is arranged outside the other side of the operating position symmetry of the workbench (1) between the forming fixed die and the movable die, and two sides of the heating assembly are arranged between the sliding rails (4) on two sides through the placing frame (10).

2. The PC sheet pre-forming blanking die and the device thereof according to claim 1, wherein the notches of the sliding rails (4) are downward respectively, the bottoms of the sliding rails are arranged at the bottom of the inner side of the mounting plate (9), the two ends of the bottom of the outer side of the mounting plate are provided with symmetrically arranged cylinder ejector rods, and the cylinder ejector rods are connected with a pneumatic valve in the control cabinet (6) through air pipes.

3. The PC sheet pre-forming blanking die and the device thereof as claimed in claim 1, wherein the bottom of the forming die (3) of the working table (1) is provided with a bottom plate, the bottom of the bottom plate is symmetrically provided with support blocks at both sides, the bottom plate is connected with the support blocks into a whole, the support blocks and the bottom plate are clamped and fixed by at least two symmetrically arranged side clamps (2), one end of the L-shaped clamp of the side clamp is fixed on the working table, the step end angle of the other end is fixed against the forming die, the bottom plate and the support blocks, the top of the L-shaped clamp between the side clamp and the working table is provided with a locking block, the locking block passes through the L-shaped clamp by a screw rod and is fixed on the working table, and the screw rod.

4. The PC sheet pre-forming blanking die and the device thereof as claimed in claim 1, wherein the forming groove side inside the positioning hole of the forming fixed die (3) is provided with a convex waist-shaped pillar, the peripheral plane of the forming groove is provided with a positioning pin, the height of the positioning pin is less than that of the waist-shaped pillar, and the waist-shaped pillar and the positioning pin of the forming fixed die are inserted into the corresponding hole groove of the movable die (5).

5. PC sheet pre-forming blanking die and its device, according to claim 1, characterized in that the right side position of the moving die (5) is below 1cm length downwards.

6. The PC sheet material pre-forming blanking die and the device thereof according to claim 1, wherein the formed PC sheet material (11) formed by punching and tearing off the edge material of the PC sheet material is a trapezoidal PC sheet material with arc-shaped oblique edges at two sides, the end corners of the formed PC sheet material are respectively provided with a chamfer, the middle of the formed PC sheet material is provided with a rectangular hole with a chamfer, the formed PC sheet material is punched and arched to a side plane, and the surface of the formed PC sheet material is provided with a protective film.