CN101070220B

CN101070220B - Glass moulding-forming device, apparatus and method

Info

Publication number: CN101070220B
Application number: CN200610081955XA
Authority: CN
Inventors: 王孟坤
Original assignee: Asia Optical Co Inc
Current assignee: Asia Optical Co Inc
Priority date: 2006-05-11
Filing date: 2006-05-11
Publication date: 2010-09-29
Anticipated expiration: 2026-05-11
Also published as: CN101070220A

Abstract

This invention relates to a glass model building device and means. This device includes one lower die for placement of glass material, one symmetric assembly that outside this lower die and composed by at least two arc blocks, one upper die that set inside of this symmetric assembly and can move relatively to this lower die, and one outer sleeve that set outside this symmetric assembly and possess plural pressurizing hole aligning to arc blocks. In the process of using this glass model building device to form glass mirror, these pressurizing holes can apply inward force to the arc blocks, make the upper and lower die and symmetric assembly free from hyperpyrexia intumescent gapping impact of outer sleeve, thereby effectively advance figuration quality of glass mirror.

Description

Glass moulding-forming device, Apparatus and method for

Technical field

The present invention relates to a kind of Apparatus for () and method therefor of making glass mirror, particularly about a kind of glass moulding-forming device, equipment and method in order to manufacturing aspheric surface glass mirror.

Background technology

As Fig. 1, Fig. 2 and shown in Figure 3, generally have the upper cores 12 that a following die 11, that is provided with one first moulding surface 111 is provided with one second moulding surface 121 in order to the glass moulding-forming device 10 of making the aspheric surface glass mirror, and a spacing collar 13 that is set in outside this time die 11.

When carrying out the glass mirror operations for forming, earlier a glass nitre material 14 is placed (Fig. 1) on this time die 11, make this upper cores 12 move to this glass nitre material 14 (Fig. 2) of contact then towards this time die 11, send into afterwards and add hot work in the forming room (figure do not show) and make this glass nitre material 14 softening, the operation of pressurizeing makes it continue to move to towards this time die 11 and touch this spacing collar 13 (Fig. 3) to this upper cores 12 then, so this glass nitre material 14 can be pressed to make and be configured as glass mirror 140, and with this first moulding surface 111,121 transcriptions of second moulding surface make this glass mirror 140 have default surperficial face shape to the surface of this glass mirror 140, offset and thickness.

Though this glass moulding-forming device 10 has this glass nitre material 14 pressures are made the effect that is configured as glass mirror 140, in fact still have following shortcoming:

One, in order to make this glass mirror 140 have good quality (surperficial face shape, offset, thickness), so must be machined to accurate quality of fit (about 2～3 μ m) between this spacing collar 13 and this upper cores 12, the following die 11, relatively the machining tolerance value between this spacing collar 13 and this upper cores 12, the following die 11 is less, has the higher shortcoming of processing difficulties degree on the practice.

If it is quite accurate that the quality of fit between two these spacing collars 13 and this upper cores 12, the following die 11 is machined to, gap relative to each other is less, but because of in the mold forming process, producing oxidative phenomena, add that the dust adsorpting factor can make that all above-mentioned gap further diminishes, so not only can influence decomposition, the assembling smoothness of this glass moulding-forming device 10, and can have a strong impact on operating efficiency.

If the working accuracy between three these spacing collars 13 and this upper cores 12, the following die 11 is so accurate, and keep appropriate gap, to help decomposition, the assembling of this glass moulding-forming device 10, but in the model process, this spacing collar 13 all can produce the phenomenon of high thermal expansion with this upper cores 12, following die 11, cause this gap to become big (see figure 3), easily make these glass mirror 140 eccentric quantitative changes big, the shaping quality is reduced.

Summary of the invention

For overcoming the deficiency that above-mentioned prior art exists, first purpose of the present invention is to provide a kind of glass moulding-forming device that can improve processing convenience and glass mirror quality.

Second purpose of the present invention is to provide a kind of glass molding device that can improve processing convenience and glass mirror quality.

The 3rd purpose of the present invention is to provide a kind of smoothness of guarantor's decomposition, assembling of can growing to improve the glass mold forming method of operating efficiency.

For achieving the above object, glass moulding-forming device of the present invention comprise die, be nested with outside this time die and have at least two arc pieces heart assembly, is placed on the upper cores that this moves in the heart assembly and relative this time die, and one is set in this to heart assembly and have a pressurize outer sleeve in holes of at least two of the described at least two arc pieces that align respectively outward.

Glass molding device of the present invention comprises a glass moulding-forming device, relatively move and be positioned at one first the adding pressing mold and be positioned at one second of following die bottom side and add pressing mold of upper cores top side of this glass moulding-forming device, one is positioned at this second lifting power spare that adds pressing mold below, and a presser unit.This presser unit comprises a pressing means that driven by this lifting power spare, and driven by this pressing means and stretch in the described two pressurization holes also at least two jig arm of the described at least two arc pieces of cramping relatively respectively at least.

Glass mold forming method of the present invention comprises the following steps:

(A) preparation one glass moulding-forming device, comprise die, be nested with outside this time die and have at least two arc pieces to heart assembly, be nested with this to heart assembly in and with the upper cores of this time die matched moulds or the demoulding, and one be set in that this is outer and have an outer sleeve at least two pressurization holes of the described at least two arc pieces that align respectively to heart assembly;

(B) a glass nitre material is placed on this time die, and this upper cores moved to touch this glass nitre material;

(C) this glass moulding-forming device and this glass nitre material are sent in the forming room;

(D) adding hot work makes this glass nitre material softening;

(E) see through described at least two pressurization holes described at least two arc pieces are applied a lateral pressure, make described at least two arc pieces concentrate inwardly extruding; And

(F) operation of pressurizeing makes this upper cores relative with this time die close, being a glass mirror with this glass nitre material mold forming.

Therefore, compared with prior art, the present invention has can improve this to heart assembly and this upper cores, the quality of fit between the die down, can improve the processing convenience thereby have, and improves the glass mirror quality, and the characteristic that improves operating efficiency.

The present invention is further illustrated below in conjunction with accompanying drawing and embodiment.

Description of drawings

Fig. 1 is the three-dimensional exploded view of an existing a kind of glass moulding-forming device and a glass nitre material.

Fig. 2 one is similar to the view of Fig. 1, shows the assembled state of this glass moulding-forming device.

Fig. 3 one is similar to the view of Fig. 2, and demonstration is the state of a glass mirror with this glass nitre material mold forming.

Fig. 4 is the three-dimensional exploded view of glass moulding-forming device one preferred embodiment of the present invention.

Fig. 5 is an assembled sectional view of this preferred embodiment.

Fig. 6 shows the state of a glass nitre material before mold forming for the front-view schematic diagram of glass molding device one preferred embodiment of the present invention.

Fig. 7 one is similar to the view of Fig. 6, shows the state after a presser unit is driven rising.

Fig. 8 one is similar to the view of Fig. 7, and demonstration is the state of a glass mirror with this glass mold forming.

Fig. 9 is a local schematic top plan view of this preferred embodiment, shows the state before a plurality of arc pieces are by cramping.

Figure 10 one is similar to the view of Fig. 9, shows the state after the arc piece is by cramping.

Figure 11 is the schema of glass mold forming method one preferred embodiment of the present invention.

Embodiment

Relevant detailed description of the present invention and technology contents, existing as follows with regard to accompanying drawings:

It should be noted that employed relative position term in entire description is as " vertical direction V ", " horizontal direction H ", be to be benchmark with the direction as shown in Fig. 6, Fig. 7 and Fig. 8.

As Fig. 4 and shown in Figure 5; glass moulding-forming device 20 of the present invention comprise die 21, be set in this time die 21 outer to heart assembly 22, be placed on from the top this in the heart assembly 22 and with the upper cores 23 of this time die 21 matched moulds or the demoulding, and one be set in this to heart assembly 22 outer sleeve 24 outward.

This time die 21 have a big footpath limiting section 211, from this limiting section 211 the path socket part 212 along an axis I moulding, and first moulding surface 213 that is arranged at these socket part 212 end faces.

This has at least two arc pieces 220 to heart assembly 22.In preferred embodiment, this has three arc pieces 220 to heart assembly 22.Each arc piece 220 respectively has an intrados 221, an extrados 222, and the bottom face 223, the top end face 224 that connect this inside and outside cambered surface 221,222.This bottom face 223 is sat and is put on the big footpath of this time die 21 limiting section 211.

Tube always axially need only be dissectd into three equal parts along one, just can make the three arc pieces 220 of this preferred embodiment heart assembly 22.

This upper cores 23 has a big footpath limiting section 231 relative with the top end face 224 of this arc piece 220, one from this limiting section 231 socket part, middle footpath 232 along this axis I moulding, one from this socket part 232 along moulding 233 of the path of this axis I moulding, and second moulding surface 234 that is arranged at this moulding 233 bottom surface.

This outer sleeve 24 has an inner ring surface 241, the outer ring surface 242 around this axis I, connect a bottom face 243, a top end face 244 of this inside and outside anchor ring 241,242 respectively, and three pressurization holes 245 running through this inside and outside anchor ring 241,242 and these arc pieces 220 that align.This bottom face 243 is sat and is put on the limiting section 211 of this time die 21.

As shown in Figure 6, glass molding device of the present invention comprises this glass moulding-forming device 20, lay respectively at one first of these upper cores 23 top sides, this time die 21 bottom sides and add pressing mold 31, one second and add pressing mold 32, and be positioned at the presser unit 50 that this second lifting power spare 40 and that adds pressing mold 32 bottom sides is driven by this lifting power spare 40.First add pressing mold 31 and second add pressing mold 32 vertically V relatively move with closer to each other or away from.

In preferred embodiment, employing be that this first adds pressing mold 31 and move, and this second adds pressing mold 32 localized designs, but also can adopt this first to add pressing mold 31 location, and this second adds the design (figure does not show) that pressing mold 32 moves.

This second adds pressing mold 32 and has the perforation 321 that wears, equates with arc piece 220 quantity along this vertical direction V.Therefore, in preferred embodiment, this second add pressing mold 32 have three the perforation 321.

This lifting power spare 40 can be a cylinder pressure or a servomotor.In preferred embodiment, employing be a cylinder pressure.This cylinder pressure has a cylinder body 41 that is fixedly arranged in body (figure do not show), and a piston rod 42 that stretches out or withdraw along this vertical direction V.

This presser unit 50 comprises that a piece 51, that holds that is assembled in this piston rod 42 holds the affixed pressing means 52 of piece 51 with this, and along this vertical direction V ornaments and driven by this pressing means 52 and stretch into three jig arm 53 in these pressurization holes 245 respectively.

This pressing means 52 is an air pressure jaw in this preferred embodiment, has a cylinder pressure 521, and along this cylinder pressure 521 move radially with move inward relatively near or relatively outwards away from three jaws 522.

The model that has SMC company (SMC Co., Ltd) to produce of selling on the market at present is 3 pawl type air pressure jaws of MHS 3 series.

Each jig arm 53 respectively has a bottom 531 that is connected with this jaw 522, one is in reverse to this bottom 531 and second adds the top 532 of moving in the perforation 321 of pressing mold 32 at this, and a pressurization hole 245 that is fixed in this top 532 and stretches into this outer sleeve 24 is made motion block 533 to touch this to the arc piece 220 of heart assembly 22.

Preferably, this presser unit 50 further is provided with the main shaft 54 that covers for this pressing means 52, has the effect that makes things convenient for these pressing means 52 smooth and easy liftings.

As shown in figure 11, glass mold forming method of the present invention comprises the following steps:

Step 70 is these glass moulding-forming devices 20 of preparation.

As shown in Figure 5, step 71 is that a glass nitre material 60 is placed on first moulding surface 213 of this time die 21, then this upper cores 23 is inserted this in the heart assembly 22 by this socket part 232, and move to this second moulding surface 234 towards this time die 21 and touch this glass nitre material 60.

As shown in Figure 6, step 72 is to send into a forming room (figure do not show) in together with this glass nitre material 60 this glass moulding-forming device 20 and sit to put at this second to add on the pressing mold 32.

Step 73 is to add hot work to make this glass nitre material 60 softening.

As Fig. 7, shown in Figure 9, step 74 is that the piston rod 42 of this lifting power spare 40 is stretched out, and moves rising to drive these presser unit 50 integral body along this vertical direction V, and it is outer up to doing motion block 533 alignment pressurization holes 245 that jig arm 53 is stretched out perforation 321 simultaneously.

As Fig. 8, shown in Figure 10, step 75 is to make this presser unit 50 air inlets.Enter the cylinder pressure 521 of this pressing means 52 when high-pressure air after, can drive these jaws 522 moves inward relatively, driving jig arm 53 simultaneously moves along this horizontal direction H, and make and make motion block 533 and stretch in the pressurization hole 245 and cramping arc pieces 220 relatively, thereby can apply one for arc piece 220 to concentrate the inwardly lateral pressure of extruding by making motion block 533.

Step 76 is to make this first add that pressing mold 31 moves down and to continue to press down this upper cores 23 concordant with the top end face 244 of this outer sleeve 24 to these limiting section 231 end faces, so these glass nitre material 60 pressures can be made and be configured as a glass mirror 61, and with this first moulding surface 213,234 transcriptions of second moulding surface surface to this glass mirror 61.

Step 77 is to make this first add pressing mold 31 and climb away this upper cores 23 earlier, make this pressing means 52 carry out the exhaust operation then, relatively outwards move to original position and break away from arc piece 220 along this horizontal direction H thereby make jaw 522 drive jig arm 53, make motion block 533 simultaneously and move to outside the pressurization hole 245.Make piston rod 42 withdrawals of lifting power spare 40 again, then can drive this presser unit 50 and move to original position, then this glass moulding-forming device 20 is sent this forming room together with this

glass mirror

61,23 liters of this upper cores are moved break away from this, just can take out this glass mirror 61 heart assembly 22.

Can make this glass mirror 61 by above-mentioned steps.Because cause in the shape process in pressure, making motion block 533 applies the lateral pressure of concentrating inside extruding can for arc piece 220, make this upper cores 23, down die 21 to the heart by the 220 accurate controls of arc piece, be not subjected to the gap affects of this outer sleeve 24 because of high thermal expansion, this first moulding surface 213,234 transcriptions of second moulding surface concentric precision can be improved relatively, thereby the shaping quality of this glass mirror 61 can be improved to this glass mirror 61.

In sum, glass moulding-forming device of the present invention, Apparatus and method for have effect as described below and advantage, thereby can reach purpose of the present invention really:

One, because the present invention causes in the process of this glass mirror 61 of shape in pressure, can apply the lateral pressure of concentrating inside extruding for arc piece 220 by making motion block 533, make this upper cores 23, following die 21 reach concentric to heart assembly 22 by this, so the present invention can improve this upper cores 23, down die 21 and this be to the quality of fit between heart assembly 22 and this outer sleeve 24, machining tolerance value, have processing simpler and easy, effect and advantage easily relatively.

Two, because the present invention causes in the process of this glass mirror 61 of shape in pressure, can apply the lateral pressure of concentrating inside extruding for arc piece 220 by making motion block 533, make this upper cores 23, following die 21 reach concentric to heart assembly 22 by this, so this upper cores 23 of the present invention, down die 21 can be bigger to the quality of fit tolerance between heart assembly 22 and this outer sleeve 24 with this, have the decomposition that to keep this glass moulding-forming device 20, assembling smoothness effect and advantage relatively with the raising operating efficiency.

Three, because the present invention causes in the process of this glass mirror 61 of shape in pressure, can apply the lateral pressure of concentrating inside extruding for arc piece 220 by making motion block 533, make this upper cores 23, following die 21 reach concentric to heart assembly 22 by this, be not subjected to the gap affects of this outer sleeve 24 because of high thermal expansion, can improve this first moulding surface 213,234 transcriptions of second moulding surface concentric precision relatively, thereby have the effect and the advantage that can improve these glass mirror 61 shaping qualities to this glass mirror 61.

Above introduce, it only is preferred embodiment of the present invention, can not limit scope of the invention process with this, promptly the variation of the equalization done according to the present invention of the those skilled in the art in the present technique field is for example made up each device among the above embodiment.And the improvement known of those skilled in that art, all should still belong to the scope that patent of the present invention contains.

Claims

1. glass moulding-forming device comprises die, a upper cores that can move relative to this time die, and an outer sleeve, it is characterized in that:

This glass moulding-forming device further comprises a pair of heart assembly that is placed on outside this time die, and this comprises at least two arc pieces to heart assembly; This upper cores is placed on this in the heart assembly; This outer sleeve be nested with this to heart assembly outside and have the described at least two arc pieces that align respectively at least two the pressurization holes.

2. glass molding device comprises:

One glass moulding-forming device, this device comprise die, a upper cores that can move relative to this time die, and an outer sleeve;

Be positioned at one first of this upper cores top side and add pressing mold and be positioned at one second of this time die bottom side and add pressing mold, this first adds pressing mold and this second and adds pressing mold and can relatively move; And

A presser unit that comprises a pressing means;

It is characterized in that:

This glass moulding-forming device further comprises a pair of heart assembly that is placed on outside this time die, and this comprises at least two arc pieces to heart assembly; This upper cores is placed on this in the heart assembly; This outer sleeve be nested with this to heart assembly outside and have the described at least two arc pieces that align respectively at least two the pressurization holes;

This presser unit further comprises at least two jig arm, and described at least two jig arm are stretched into respectively in the described two pressurization holes, with the described two arc pieces of relative cramping by the driving of this pressing means at least at least.

3. glass molding device as claimed in claim 2 is characterized in that further comprising that one is installed in this second lifting power spare that adds the pressing mold below and can drive this presser unit.

4. glass molding device as claimed in claim 3 is characterized in that this lifting power spare is a cylinder pressure.

5. glass molding device as claimed in claim 4 is characterized in that this pressing means is an air pressure jaw, has a cylinder pressure, and can be relative at least two jaws that inwardly, outwards move and be assembled in respectively described at least two jig arm.

6. glass molding device as claimed in claim 5, it is characterized in that each jig arm respectively has a bottom that is connected with this jaw, one is in reverse to the top of this bottom, and one is fixed in this top and can stretches into this pressurization hole to touch the motion block of doing of this arc piece.

7. glass molding device as claimed in claim 2 is characterized in that this presser unit further comprises a main shaft that supplies this pressing means to cover.

8. a glass mold forming method comprises the following steps:

(A) preparation one glass moulding-forming device, this device comprise die and a upper cores that can move relative to this time die;

(B) a glass nitre material is placed on this time die;

(C) adding hot work makes this glass nitre material softening; And

(D) operation of pressurizeing makes this upper cores relative with this time die close, being a glass mirror with this glass nitre material mold forming;

It is characterized in that:

Step (A) further comprise preparation one be placed on this time die outward to heart assembly, and one be nested with at this outer sleeve outside the heart assembly; This comprises at least two arc pieces to heart assembly; This outer sleeve has at least two pressurization holes of the described at least two arc pieces that align respectively; This upper cores is placed on this in the heart assembly;

In the step (B), when placing glass nitre material on this time die, this upper cores also be nested with in the lump this to heart assembly in;

Step (C) and (D) between comprise that further one adds the side pressure step, in this step, described at least two arc pieces are applied a lateral pressure via described at least two pressurization holes, make described at least two arc pieces concentrate inwardly extruding.