CN216400519U

CN216400519U - Large-area lossless forming die for organic glass plate

Info

Publication number: CN216400519U
Application number: CN202122636416.0U
Authority: CN
Inventors: 谢曼丰; 王清笋; 林顺建
Original assignee: Fujian Shishi Tongda Electrical Appliance Co Ltd
Current assignee: Fujian Shishi Tongda Electrical Appliance Co Ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-04-29
Anticipated expiration: 2031-10-29

Abstract

The utility model discloses a large-area nondestructive forming die for an organic glass plate, which comprises an upper die and a lower die, wherein the lower die is provided with a lower bottom plate, a material supporting device, a forming die core and a vacuum adsorption device; the forming mold core is a self-adaptive expansion mold core with expansion on heating and contraction on cooling, the forming mold core is installed on the lower bottom plate, the vacuum adsorption device is located below the lower bottom plate, the upper mold is provided with an upper top plate and two lower pressing plates, the two lower pressing plates are transversely and oppositely erected at intervals, and the two lower pressing plates are aligned to be located outside two side walls of the forming mold core and can be attached to and matched with the side walls of the forming mold core. Compared with the prior art, the expansion and contraction of the organic glass plate during the forming of the organic glass plate, the corresponding synchronous expansion and contraction of the forming mold core are always closely attached to the organic glass plate, so that the comprehensive and balanced traction force is achieved, no crease is generated in the contraction process of the organic glass plate, and the organic glass plate cannot be stretched, deformed and distorted during the forming.

Description

Large-area lossless forming die for organic glass plate

Technical Field

The utility model relates to the field of electronic panel processing, in particular to a large-area lossless forming die for an organic glass plate.

Background

As is well known, organic glass plates have good transparency, chemical stability, mechanical properties and weather resistance, especially good permeability and similar visual effect to glass plates, and are commonly used to replace glass panels to be applied to various appearance decorative parts, such as air conditioner panels, on-hook panels, washing machine masks and the like. In order to pursue stronger texture, the organic glass plate is usually printed (coated) with various patterns on the back surface, and made into various three-dimensional shapes, so as to replace the bent steel glass effect. Because the plastic property of the organic glass plate is better than that of toughened glass, the shape of the organic glass plate is more updated, and the application is wider. However, the traditional organic glass plate forming process has the following defects and cannot meet the new market requirements.

The first method is stretching deformation, when the plate is stretched and thinned, exquisite pattern textures printed on the plate can be damaged in the stretching process, particularly printing ink layers with metal-texture mirror silver trademarks, metal-texture flash silver ground colors and the like, the stretching resistance limit of the patterns containing metal powder in a high proportion is below 5% (for example, a screen printing high bright silver ink layer is a panel with the length of 1000mm, when the stretching length reaches more than 1050mm, the bright silver ink layer cracks, becomes thin, has different colors and the like, and has the defect that the reject ratio is 100%). Use the panel at outward appearance decoration, for the sense of penetrating stronger, adopt the organic glass board more than 1.5mm of thickness to carry out the shaping usually, and panel is thicker, and surface tension is big more in the forming process, and the printing ink layer is the fracture more easily. When the flexibility is larger than the silver flash stretch-resistant degree, the ink layer cracks.

The second is distortion, because the organic glass plate is amorphous high polymer, is an amorphous thermoplastic engineering plastic, so do not have fixed melting point, just be in the molten state in certain scope, the softening state of each local region of big panel extremely difficult to reach unanimity, so at above-mentioned traditional forming process panel deformation thickness inequality, the fine pattern on the panel is consequently yielding, display window on the panel, the lamp symbol picture position of reserving is also easily run the position and is askew.

Accordingly, the present inventors have made extensive studies on the above problems, and as a result, the present invention has been made.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a large-area nondestructive forming die for an organic glass plate, which aims to solve the problem of stretching or distortion deformation caused by the forming of a large-size organic glass plate in the prior art.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a large-area nondestructive forming die for an organic glass plate comprises an upper die and a lower die matched with the upper die, wherein the lower die is provided with a lower bottom plate, a material supporting device for placing the organic glass plate, a forming die core for forming the organic glass plate and a vacuum adsorption device for generating vacuum suction; the material supporting device is provided with two material supporting plates which are transversely arranged at intervals and oppositely, the two material supporting plates are arranged above the lower bottom plate in a way of lifting up and down, the molding mold core is positioned in the range between the two material supporting plates, the molding mold core is a self-adaptive expansion and contraction mold core which expands with heat and contracts with cold, the forming mold core is arranged on the lower bottom plate, the vacuum adsorption device is arranged below the lower bottom plate, the air suction end of the vacuum adsorption device is arranged upwards and passes through the outer surface of the top surface of the lower bottom plate, and the end of breathing in of vacuum adsorption device is outside the periphery edge of shaping mold core, and above-mentioned upper die utensil has last roof and fixes the holding down plate that pushes down the side of organic glass board on last roof bottom surface, and the holding down plate is provided with two, and two holding down plates are horizontal to erect the interval relatively and set up, and two holding down plate counterpoints and be in outside the both sides wall of shaping mold core and can paste the cooperation setting mutually with the lateral wall of shaping mold core.

The length direction of the large-size panel is used as the front-back direction, the lower bottom plate is a strip-shaped plate extending along the length direction of the large-size organic glass plate, the material supporting cylinders which are vertically arranged are fixedly arranged at four corners of the bottom surface of the lower bottom plate respectively, piston rods of the material supporting cylinders penetrate through the lower bottom plate upwards, the material supporting plates are fixedly arranged at the free end parts of the piston rods of the material supporting cylinders, the material supporting plates are strip-shaped plates extending along the front-back direction of the lower bottom plate, and the front ends and the rear ends of the strip-shaped plates are correspondingly fixedly arranged and matched with the piston rods of the two material supporting cylinders positioned on the same side.

The central area of the strip-shaped plate is fixedly locked with the piston rod of the material supporting cylinder.

The forming mold core is a strip mold core extending along the length direction of the lower bottom plate, the forming mold core is locked on the top surface of the lower bottom plate, air passages are formed in the lower bottom plate, the forming mold core falls into the range of the air passages, a plurality of air suction holes communicated with the air passages are formed in the top surface of the lower bottom plate, the air suction holes are distributed along the periphery of the forming mold core in a surrounding mode at intervals, a vacuum generator is arranged below the lower bottom plate, an air suction pipe is installed at the output end of the vacuum generator, the air suction pipe is communicated with the air passages and matched with the air passages, and the air suction pipe and the vacuum generator form the vacuum adsorption device.

The top surface of above-mentioned lower plate is located the left and right sides of forming die core and installs flexible stopper outward, and above-mentioned suction hole is in between flexible stopper and the forming die core, and above-mentioned flexible stopper is the rectangle plate that extends along the length direction of lower plate, and above-mentioned flexible stopper has lower block and upper block, and above-mentioned lower block and lower plate fixed fit install the supporting spring who upwards erects on the above-mentioned lower block, and above-mentioned upper block and above-mentioned supporting spring's upper end fixed fit.

The center area of the top surface of the forming mold core is provided with a positioning nail which can penetrate through the organic glass plate.

The bottom surface of the upper top plate is fixed with mounting blocks which are oppositely arranged left and right, the upper ends of the lower pressing plates are locked on the mounting blocks, the opposite surfaces of the lower ends of the two lower pressing plates are arc-shaped surfaces, the two arc-shaped surfaces form a horn structure which gradually expands from top to bottom, and the bottom surfaces of the lower pressing plates and the arc surfaces are in fillet transition.

The utility model relates to a large-area nondestructive forming die for an organic glass plate, which is applied to a large-area nondestructive forming die, wherein an upper die and a lower die are separated, the organic glass plate is horizontally placed on two material supporting plates, an external heating plate is horizontally arranged above the organic glass plate, the heat emitted by the external heating plate is transferred to the organic glass plate, the organic glass plate is heated and softened, the external heating plate is moved out at the moment, the material supporting plates are moved downwards to be close to a forming die core, the upper die is moved downwards to be matched with the lower die, two side edges of the organic glass plate are pressed downwards by a lower pressing plate, the organic glass plate falls onto the forming die core and is matched with the forming die core in a sticking way, the self-adaptive shrinkage and expansion die core expands under the heat of the organic glass plate, when the lower pressing plate presses the organic glass plate downwards, the expansion of the forming die core can be better matched with the organic glass plate to support the organic glass plate, the organic glass plate is full, and the forming die core correspondingly and also shrinks synchronously when the organic glass plate is cooled and shrunk, the traction force is always closely attached to the organic glass plate so as to achieve comprehensive and balanced traction force, and the organic glass plate is ensured to have no crease in the shrinkage process, so that the organic glass plate is prevented from stretching, deforming and twisting during molding; and when the vacuum adsorption device is used for closing the upper die and the lower die, the vacuum adsorption device generates downward vacuum suction force on a cavity formed by closing the upper die and the lower die, so that the organic glass plate is more attached to the forming die core by the downward suction force, and the phenomena of deformation and distortion cannot occur during the forming of the organic glass plate.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a view showing a state of the closed mold according to the present invention.

Detailed Description

The utility model relates to a large-area nondestructive forming die for an organic glass plate, which comprises an upper die and a lower die matched with the upper die, wherein the lower die is provided with a lower bottom plate 1, a material supporting device for placing an organic glass plate 100, a forming die core 2 for forming the organic glass plate 100 and a vacuum adsorption device for generating vacuum suction; the material supporting device is provided with two material supporting plates 3 which are transversely arranged at intervals, the two material supporting plates 3 are arranged above the lower base plate in a mode of lifting up and down, preferably, the length direction of a large-size panel is taken as the front-back direction, the width direction is taken as the left-right direction, the lower base plate 1 is a strip-shaped plate extending along the length direction of the large-size organic glass plate 100, material supporting cylinders 4 which are vertically arranged are respectively and fixedly arranged at the four corners of the bottom surface of the lower base plate 1, piston rods of the material supporting cylinders 4 penetrate upwards through the lower base plate 1, the material supporting plates 3 are strip-shaped plates extending along the front-back direction of the lower base plate 1, the front ends and the back ends of the strip-shaped plates are correspondingly and fixedly arranged and matched with the piston rods of the two material supporting cylinders on the same side, namely, the front ends and the back ends of the material supporting plates on the left side are respectively and fixedly matched with the material supporting cylinders 4 on the front side and the back side on the right side, the fixed matching mode is preferably that the end part of the free end of the piston rod of the material supporting cylinder 4 extends into the central area of the material supporting plate 3 and is locked with the piston rod through a screw extending from top to bottom.

The forming mold core 2 is located in the range between the two material supporting plates 3, the forming mold core 3 is a self-adaptive expansion mold core which expands with heat and contracts with cold, the forming mold core 2 is a strip mold core which extends along the length direction of the lower bottom plate, the forming mold core 2 is fixedly installed at the central area of the top surface of the lower bottom plate 1 through bolts, the self-adaptive expansion mold core is made of materials which expand with heat and contract with cold and is also made of foam, rubber and the like, and the shape of the forming mold core 2 is matched with the shape of an appearance decoration piece to be formed.

The vacuum adsorption device is arranged below the lower bottom plate 1, the air suction end of the vacuum adsorption device is upwards arranged and passes through the outer surface of the top surface of the lower bottom plate, the air suction end of the vacuum adsorption device is arranged outside the peripheral edge of the forming mold core, preferably, an air passage is arranged in the lower bottom plate 1, preferably, the air passage is provided with an expanding air passage and a reducing air passage, the expanding air passage is a rectangular cavity with the size larger than that of the forming mold core, the reducing air passage is a longitudinal cavity which is arranged below the expanding air passage and extends along the up-and-down direction of the lower bottom plate, the longitudinal cavity is in a cylindrical structure and is communicated with a transverse cavity, the lower end part of the longitudinal cavity is communicated with the bottom surface of the lower bottom plate 1, the forming mold core falls into the range of the air passage, namely, the forming mold core 2 falls into the range of the expanding air passage, the top surface of the lower bottom plate 1 is provided with a plurality of air suction holes (not shown in the figure) communicated with the air passages, and the air holes are distributed around the peripheral edge of the forming mold core at intervals, the suction holes are enclosed into a circle, the forming mold core is positioned in the suction hole ring, a vacuum generator 51 is arranged below the lower bottom plate 1, the output end of the vacuum generator 51 is provided with a suction pipe 52, the vacuum generator 51 is a known product, the output end of the vacuum generator is arranged upwards, the suction pipe 52 is vertically arranged, the lower end of the suction pipe 52 is communicated with the output end of the vacuum generator 51, the upper end of the suction pipe 52 is communicated and matched with the lower end of the reducing air passage, and the suction pipe 52 and the vacuum generator 51 form the vacuum adsorption device.

The upper die is provided with an upper top plate 6 and lower press plates 7 fixed on the bottom surface of the upper top plate and used for pressing down the side edges of the organic glass plate 100, the lower press plates 7 are arranged in two numbers, the two lower press plates 7 are arranged at the left side and the right side relatively vertically, the bottom surface of the upper top plate 6 is fixed with mounting blocks 61 arranged in the left side and the right side relatively, the upper ends of the lower press plates 7 are locked on the mounting blocks 61, the two lower press plates 7 are oppositely positioned outside the two side walls of the forming die core and can be matched with the side walls of the forming die core in a pasting mode, namely, when the upper die moves downwards, the two lower press plates 7 are just matched with the left side wall and the right side wall of the forming die core 2 in a pasting mode.

The utility model relates to a large-area nondestructive forming die for an organic glass plate, which is applied, wherein an upper die and a lower die are separated, the left side and the right side of the organic glass plate 100 are horizontally placed on two material supporting plates 3, a material supporting cylinder 4 extends upwards, the organic glass plate 100 is separated from a forming die core 2, an external heating plate 200 is horizontally moved above the organic glass plate 100, heat emitted by the external heating plate 200 is transferred to the organic glass plate 100 at the moment, the organic glass plate 100 is heated and softened, the external heating plate 100 is moved out after being heated for a period of time, the material supporting cylinder 4 contracts, the material supporting plates 3 move downwards and are close to the forming die core 2, the upper die moves downwards to be matched with the lower die, the upper die moves downwards to enable the two lower press plates 7 to downwards press the left side and the right side of the organic glass plate 100, the organic glass plate 100 falls onto the forming die core 2 to be matched with the forming die core 2 in a sticking way, and the self-adaptive shrinkage-expansion die core expands under the heat of the organic glass plate at the moment, when the lower pressing plate 7 downwards presses the organic glass plate 100, the expansion of the forming mold core 2 can be better attached to the organic glass plate 100, the organic glass plate 100 is tightly supported, the organic glass plate is full, the forming mold core correspondingly and synchronously shrinks when the organic glass plate is cooled and shrunk, and the organic glass plate is always attached to the organic glass plate closely, so that comprehensive and balanced traction force is achieved, no crease mark is generated in the shrinkage process of the organic glass plate, and the organic glass plate cannot be stretched, deformed and twisted during molding; and, during the compound die, go up mould and bed die and all can produce some spaces, vacuum generator opens this moment, and the suction hole has vacuum gas to the border department of shaping mold core, produces vacuum suction to organic glass board 100, makes organic glass board 100 can inhale and paste on the surface of shaping mold core, makes organic glass board and shaping mold core more obey, can not appear the phenomenon of deformation and distortion when further guaranteeing the shaping of organic glass board.

In this is novel, it is excellent, and the lower extreme opposite face of two holding down plates 7 all is the arcwall face, and two arcwall faces constitute the horn structure that from top to bottom expands gradually, and the bottom surface of holding down plate personally submits the fillet transition with the arc, and the left surface lower part that is in the right side lower part of left holding down plate and the holding down plate that is in the right side promptly all is the arcwall face, utilizes arc structure and fillet transition can play the guide effect to moving down of two holding down plates on shaping mold core both sides to it is impaired to be difficult for making organic glass.

In the novel structure, preferably, the top surface of the lower base plate 1 is provided with telescopic limiting blocks outside the left side and the right side of the forming mold core, the air suction holes are positioned between the telescopic limiting blocks and the forming mold core, the telescopic limiting blocks are rectangular plates extending along the length direction of the lower base plate, the telescopic limiting blocks are provided with upper block bodies 81 and lower block bodies 82, the lower block bodies 82 are fixedly matched with the lower base plate 1, the lower block bodies 82 are provided with supporting springs 83 standing upwards, and the upper block bodies 81 are fixedly matched with the upper ends of the supporting springs 83; utilize supporting spring 83 to make the height of flexible stopper obtain certain regulation, like this holding down plate 7 moves down and when flexible stopper contacts, flexible stopper produces ascending top holding power to holding down plate 7 and makes holding down plate 7 tighter, improves the shaping effect of organic glass board.

This is novel, the top surface central zone of forming die core 2 is equipped with the location nail 21 that can pass the organic glass board, and the position of this location nail 21 is with the through-hole counterpoint of taking certainly on the organic glass board 100, can play the positioning action to organic glass board 100 like this, further improves the shaping quality.

The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes or modifications thereof by those skilled in the art should be considered as not departing from the scope of the present invention.

Claims

1. The utility model provides a harmless forming die of organic glass board large tracts of land which characterized in that: the forming mold comprises an upper mold and a lower mold matched with the upper mold, wherein the lower mold is provided with a lower bottom plate, a material supporting device for placing an organic glass plate, a forming mold core for forming the organic glass plate and a vacuum adsorption device for generating vacuum suction; the material supporting device is provided with two material supporting plates which are transversely arranged at intervals and oppositely, the two material supporting plates are arranged above the lower bottom plate in a way of lifting up and down, the molding mold core is positioned in the range between the two material supporting plates, the molding mold core is a self-adaptive expansion and contraction mold core which expands with heat and contracts with cold, the forming mold core is arranged on the lower bottom plate, the vacuum adsorption device is arranged below the lower bottom plate, the air suction end of the vacuum adsorption device is arranged upwards and passes through the outer surface of the top surface of the lower bottom plate, and the end of breathing in of vacuum adsorption device is outside the periphery edge of shaping mold core, and above-mentioned upper die utensil has last roof and fixes the holding down plate that pushes down the side of organic glass board on last roof bottom surface, and the holding down plate is provided with two, and two holding down plates are horizontal to erect the interval relatively and set up, and two holding down plate counterpoints and be in outside the both sides wall of shaping mold core and can paste the cooperation setting mutually with the lateral wall of shaping mold core.

2. The large-area nondestructive molding die for the organic glass plate as claimed in claim 1, wherein: the length direction of the large-size panel is used as the front-back direction, the lower bottom plate is a strip-shaped plate extending along the length direction of the large-size organic glass plate, the material supporting cylinders which are vertically arranged are fixedly arranged at four corners of the bottom surface of the lower bottom plate respectively, piston rods of the material supporting cylinders penetrate through the lower bottom plate upwards, the material supporting plates are fixedly arranged at the free end parts of the piston rods of the material supporting cylinders, the material supporting plates are strip-shaped plates extending along the front-back direction of the lower bottom plate, and the front ends and the rear ends of the strip-shaped plates are correspondingly fixedly arranged and matched with the piston rods of the two material supporting cylinders positioned on the same side.

3. The large-area nondestructive molding die for the organic glass plate as claimed in claim 2, wherein: the central area of the strip-shaped plate is fixedly locked with the piston rod of the material supporting cylinder.

4. The large-area nondestructive molding die for the organic glass plate as claimed in claim 2, wherein: the forming mold core is a strip mold core extending along the length direction of the lower bottom plate, the forming mold core is locked on the top surface of the lower bottom plate, air passages are formed in the lower bottom plate, the forming mold core falls into the range of the air passages, a plurality of air suction holes communicated with the air passages are formed in the top surface of the lower bottom plate, the air suction holes are distributed along the periphery of the forming mold core in a surrounding mode at intervals, a vacuum generator is arranged below the lower bottom plate, an air suction pipe is installed at the output end of the vacuum generator, the air suction pipe is communicated with the air passages and matched with the air passages, and the air suction pipe and the vacuum generator form the vacuum adsorption device.

5. The large-area nondestructive molding die for the organic glass plate as claimed in claim 4, wherein: the top surface of above-mentioned lower plate is located the left and right sides of forming die core and installs flexible stopper outward, and above-mentioned suction hole is in between flexible stopper and the forming die core, and above-mentioned flexible stopper is the rectangle plate that extends along the length direction of lower plate, and above-mentioned flexible stopper has lower block and upper block, and above-mentioned lower block and lower plate fixed fit install the supporting spring who upwards erects on the above-mentioned lower block, and above-mentioned upper block and above-mentioned supporting spring's upper end fixed fit.

6. The large-area nondestructive molding die for the organic glass plate as claimed in claim 1, wherein: the center area of the top surface of the forming mold core is provided with a positioning nail which can penetrate through the organic glass plate.

7. The large-area nondestructive molding die for the organic glass plate as claimed in claim 2, wherein: the bottom surface of the upper top plate is fixed with mounting blocks which are oppositely arranged left and right, the upper ends of the lower pressing plates are locked on the mounting blocks, the opposite surfaces of the lower ends of the two lower pressing plates are arc-shaped surfaces, the two arc-shaped surfaces form a horn structure which gradually expands from top to bottom, and the bottom surfaces of the lower pressing plates and the arc surfaces are in fillet transition.