CN1165786A - Shaping method and appts. of glass products - Google Patents
Shaping method and appts. of glass products Download PDFInfo
- Publication number
- CN1165786A CN1165786A CN97102034A CN97102034A CN1165786A CN 1165786 A CN1165786 A CN 1165786A CN 97102034 A CN97102034 A CN 97102034A CN 97102034 A CN97102034 A CN 97102034A CN 1165786 A CN1165786 A CN 1165786A
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- CN
- China
- Prior art keywords
- glass
- air
- forming body
- cooling
- glass forming
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B11/00—Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
- C03B11/12—Cooling, heating, or insulating the plunger, the mould, or the glass-pressing machine; cooling or heating of the glass in the mould
- C03B11/125—Cooling
- C03B11/127—Cooling of hollow or semi-hollow articles or their moulds
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B11/00—Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
- C03B11/12—Cooling, heating, or insulating the plunger, the mould, or the glass-pressing machine; cooling or heating of the glass in the mould
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
Disclosed is a forming method of glass products. The invention comprises a glass blank supply working procedure for supply a melted glass block to a female mold, an extrusion working procedure for sending a male mold down and pressurizing the melted glass block into a glass formed body, and an air cooling working procedure for opening the female mold and cooling and solidifying the glass formed body in the female mold after the male mold is lifted up. The invention is characterized in that the air pressures inside and outside the upper edge of the glass formed body in the air cooling working procedure are preset to be approximate and then the glass formed body is cooled. The invention can prevent the sealed edge of the glass formed body from falling down and increase the cooling air flow; therefore the invention can improve the cooling effect to the glass formed body.
Description
The present invention relates to the forming method and the device thereof of glasswork, particularly with forming method and the device thereof of televisor glass bulb with the glasswork headed by the colored glass awl.
The forming method of glasswork generally is to adopt extrusion molding, and typical televisor glass bulb adopts following forming method with colored glass awl.
When coming prescribed position, the glass block (hereinafter referred to as glass gob) of melted state is supplied with to die bed with one in a plurality of formers (hereinafter referred to as die bed) that uniformly-spaced are arranged on the universal stage periphery.Then, in case die bed is positioned extrusion position, as shown in Figure 9, tubular mould (hereinafter referred to as ring bodies) 1 drops on the die bed 2, and is stated from the upper edge of die bed 2, and then formpiston (hereinafter referred to as plunger) 3 declines, and it is glass awl 4 that glass gob is pushed aftershaping.
After moulding finished, plunger 3, ring bodies 1 rose, and carry out die sinking, in case die bed 2 is located in cool position then, as shown in figure 10, the round shape airway (hereinafter referred to as the air forming device) 5 of cooling usefulness descends, inner-wall surface to glass awl 4 is supplied with cooling air, makes glass awl 4 coolings of the condition of high temperature.And then on a plurality of positions, cool off, and fully solve problem on deformation by the processing of back.In this refrigerating work procedure, on the cool position after the die sinking just, glass awl 4 is still very high very soft because of temperature, and the side surface part branch of glass awl 4 collapses to the inside.In order to prevent this collapsing, upper board 6 and lower panel 7 are housed at the tip of air forming device 5, the gap between this upper board 6 and lower panel 7 forms the air-flow of horizontal direction, by this air pressure glass awl 4 is pushed to die bed, prevents to collapse.
In case refrigerating work procedure finishes, on extracting position, glass awl 4 is taken out from die bed 2, die bed 2 is accepted the glass gob supplied with again on prescribed position then, and repeats same operation.
Yet in the refrigerating work procedure of traditional glass awl moulding, can be from the horizontal direction air pressure of absolutely empty atmospheric pressure mould 5 boring 4 upper rim (hereinafter referred to as sealed edge) 4A with the glass shown in Figure 11 of plunger 3 and ring bodies 1 moulding shown in two dot chain line among Figure 11 and collapse laterally.
In order to prevent this collapsing, consider to dwindle the flow of cooling air, but so can reduce cooling performance, cause cooling insufficient, so be difficult to accomplish not only keep cooling performance but also prevent to collapse.
What additive method enlarged between the plate 6 of air forming device 5 and the sealed edge 4A at interval, changes plate 6 in addition is provided with height to reduce the method for the air pressure of the outside thruster of sealed edge 4A etc.And, all require to carry out delicate setting again, so be difficult to operate and the keeping of state in order to prevent that simultaneously glass cone flank face from collapsing to the inside and the collapsing of sealed edge 4A.
In view of this situation, the object of the present invention is to provide a kind of available simple method to prevent the forming method and the device thereof of the glasswork that sealed edge collapses.
To achieve these goals, technical scheme of the present invention is a kind of forming method of glasswork, have the glass gob that the glass block of fusing is supplied with to former and supply with operation, it is the glass block extrusion forming of aforementioned fusing the extrusion process of glass forming body also that tubular mould and formpiston are descended, make the rise back die sinking and make the air cooling operation of the glass forming body cooling curing in the former with air-flow of tubular mould and formpiston, be characterized in, the air pressure that glass forming body upper rim (sealed edge) in the aforementioned air cooling operation is inboard and the air pressure settings in the outside are cooled off aforementioned glass forming body after about equally, near and full week of the outside sealed edge or surrounding edge partly is set, and make the sealed edge outside produce air pressure by air is involved in, collapse preventing.
The present invention is involved in cooling air by the ring-type surrounding edge is set near sealed edge, makes the sealed edge outside produce air pressure, thereby has eliminated the pressure difference of sealed edge inboard with the outside.The glass deformation that can suppress adhesive region by this pressure state.Thereby can prevent collapsing of sealed edge, and increase the flow of cooling air therefrom, so can improve cooling performance.Can improve the cooling performance of sealed edge by the cooling air that is involved in again.On the other hand, if the horizontal direction distance of the top vertical direction distance till the upper wall of aforementioned lead-in path of establishing glass forming body till for H, from the extended line of glass forming body outer side vertical direction to the opening end of lead-in path inlet is X, then H, X are being set at 0.2＜X/H＜1.2 o'clock, then both can effectively prevent to collapse, can improve cooling performance again.
Also having, in the present invention, is to make inboard air pressure on the glass forming body sealed edge and outside air pressure about equally, this means can prevent to collapse or it is relieved to the practical degree that do not hinder.Thereby, even the inner air and outer air pressure in substantive full week of sealed edge is not controlled, as long as carry out part and control and can achieve the goal yet being easy to generate position that this class collapses at least.
Again, controlling for the inner air and outer air pressure to above-mentioned sealed edge, be located near annular component or the ring-type surrounding edge in the sealed edge outside and need not to be same banded ring bodies, also can be partly to be provided with along the annular seal limit.And above-mentioned annular component puts use on former usually, as long as but can control the air-flow in the sealed edge outside, then also can be top setting near former, the method that annular component is arranged at above the former also comprises this example.
Simple declaration to accompanying drawing
Fig. 1 is the side sectional view of one embodiment of the invention.
Fig. 2 is the vertical view along 2-2 line among Fig. 1.
Fig. 3 is the amplification view of the sealed edge part of Fig. 1 embodiment.
The recessed quantification method of measuring of glass awl that Fig. 4 explanation obtains with conventional art and the present invention.
Fig. 5 is the explanatory view that the recessed amount that glass awl that obtains with conventional art and the glass that uses BUR of the present invention to obtain are bored is compared.
The quantification method of the SE periphery values that the glass that Fig. 6 explanation obtains with conventional art and the present invention is bored.
Fig. 7 is the explanatory view that the SE week boundary values that glass awl that obtains with conventional art and the glass that uses BUR of the present invention to obtain are bored is compared.
Fig. 8 compares the SE outline shape that glass awl that obtains with conventional art and the glass that uses BUR of the present invention to obtain are bored.
Fig. 9 state that to be expression push glass gob with die bed and plunger want portion's sectional view.
Figure 10 is the sectional view that the refrigerative state is carried out the glass awl with the air forming device in expression.
Figure 11 is the amplification view of the sealed edge part of conventional art.
Describe the forming method of glasswork of the present invention and the best example of device thereof in detail below in conjunction with accompanying drawing.
Fig. 1 is the basic sectional view of the invention process form, and expression is used from the air of air forming device colored glass awl 10 refrigerative state in addition.In the outside, be provided with the annular component that section is the L font (hereinafter referred to as BUR[Back Up Ring]) 14 with the sealed edge 10A of the glass awl 10 of die bed 12 and plunger extrusion molding.Because this BUR14 is arranged on aforementioned location, be involved in the outside of sealed edge 10A from the cooling air of air forming device 16, thereby eliminated the pressure difference of sealed edge 10A inboard with the outside, suppressed the distortion of sealed edge 10A section form.That is, prevented collapsing of sealed edge 10A by aforementioned BUR14.
Aforementioned BUR14 links with air forming device 16 through framework 18 as shown in Figure 1, simultaneously as shown in Figure 2, and along 4 limits settings except that corner part 11 of glass awl 10.Thereby the relative together glass with air forming device 16 of aforementioned BUR14 awl 10 and make lifting moving is on 4 limits doing to descend and move and surround glass awl 10 when putting on die bed 12.Also have, symbol 20 is upper boards of air forming device 16, and 22 of symbols are lower panel.
Embodiments of the invention and Comparative Examples below are described.
Fig. 3 is the amplification view of the BUR14 of Fig. 1.As shown in the drawing, be from the outside 5mm (Y size) of sealed edge 10A, along sealed edge 10A BUR14 is set from the position of top 17mm (H size), and, the air flow quantity from the air forming device is set at 2450Nm
3Cool off behind/the h.At this moment, can distinguish that glass is bored the air pressure P1 of 10 inboards and the air pressure P2 in the outside keeps following state:
0.9＜P2/P1＜1.1
Its result, the amount of collapsing of sealed edge 10A (to call recessed amount in the following text), as follows with respect to the temperature (to call the SE temperature in the following text) of the interior periphery outline shape (to call the SE profile in the following text) of the magnitude of error (to call SE week boundary values in the following text) of sealed edge 10A peripheral dimension design load, sealed edge 10A, sealed edge 10A.
Fig. 4 illustrates the quantification method of recessed amount.Fig. 4 (a) illustrates the recessed amount when sealed edge 10A collapses to the inside, in this occasion, on the vertical line from sealed edge 10A neighboring (imaginary limit) 10B, is decided to be to be recessed into and measures arriving length till the point that intersects with sea line from periphery end difference 10C.Fig. 4 (b) then represents the occasion that sealed edge 10A collapses laterally, in this occasion, also is on the vertical line from sealed edge 10A neighboring (imaginary limit) 10B, is decided to be to be recessed into and measures arriving length till the point that intersects with sea line from periphery end difference 10C.
To the recessed measuring result of measuring as shown in Figure 5.The longitudinal axis of Fig. 5 is represented recessed amount (mm), and transverse axis is represented the measurement point (16 point) of sealed edge 10A.As shown in the drawing, when adopting conventional art, from graphic representation the result of white point as can be seen, the recessed amount average out to-0.35mm in full week of sealed edge 10A.And in using the present embodiment of BUR14, from graphic representation the result of stain as can be seen, average out to 0.05mm.In case collapse, recessed amount promptly becomes negative, this shows when adopting conventional art to collapse, and collapses by using BUR14 then can prevent.
According to above result, when using BUR14, can increase cooling air delivery, and needn't worry can collapse, so can improve cooling efficiency.
Fig. 6 illustrates the quantification method of SE week boundary values.Fig. 6 (a) is the vertical view of glass awl 10, and solid line is the peripheral shape design load of sealed edge 10A among the figure, and dotted line then is a measured value among the figure.The magnitude of error of measured value and previous designs value is decided to be aforementioned SE week boundary values.And, be decided to be positive number when being in the outside when the relative design load in the outside of sealed edge 10A, then be decided to be negative when being in the inboard.Fig. 6 (b) is the longitudinal sectional view of glass awl 10.
The measuring result of SE week boundary values as shown in Figure 7.As shown in the drawing, traditional method shown in the result of white point in the graphic representation, the SE in full week week boundary values average out to+0.3mm.The present embodiment that uses BUR14 then shown in the result of stain in the graphic representation, average out to-0.2mm.Thereby, by using BUR14 may command SE week boundary values, and can suppress the fluctuation of SE week boundary values on each measurement point.
Below in conjunction with Fig. 8 the SE profile is described.SE profile shown in this figure is each sealed edge 10A to be amplified to 10 times in the error of the peripheral shape design load in the vertical direction of face and the sealed edge 10A inboard and the outside show.Its result is shown in Fig. 8 (b), and when using traditional method, the relative design load in interior outside of sealed edge 10A and integral body are in the outside, are the fluctuating shape on the face.And when adopting present embodiment, shown in Fig. 8 (a), the relative design load in interior outside of sealed edge 10A and integral body is in the inboard be can't see fluctuating on the face, as seen uses BUR14 really can improve the SE outline shape.
About the SE temperature, the temperature of the long limit central authorities of sealed edge 10A has been carried out measuring relatively.Its result when adopting traditional method, has cooled off 54 ℃ with air cooling with sealed edge 10A, uses the present embodiment of BUR14 then to cool off 94 ℃.As seen use BUR14 cooling performance can be improved 40 ℃.
On the other hand, as shown in Figure 3, if the horizontal direction distance of the vertical direction distance till establishing from the upper limb face of sealed edge 10A to the upper wall of the lead-in path 15 of BUR14 till for H, from the vertical direction extended line of sealed edge 10A outer side to the inlet opening end of lead-in path 15 is X, then o'clock can suppress effectively to collapse aforementioned H, X being made as 0.2＜X/H＜1.2.
In addition, present embodiment is with the example that is fabricated to of colored glass awl 10, but is not limited to this, is applicable to that also other have the glasswork of same molding procedure, can obtain same effect.
As mentioned above, adopt forming method and when device thereof of glasswork of the present invention, air pressure by and the outside inboard to the sealed edge in the refrigerating work procedure of glass ware forming is controlled, and has to prevent that sealed edge from collapsing, controlling the excellent effect of SE week boundary values, stabilized seal cincture profile shape.And, also can improve the sealed edge cooling performance by cooling air is involved in.Owing to improved cooling performance, make glass quicken cooling curing, can suppress the distortion of sealed edge.
Claims (5)
1. the forming method of a glasswork, have the glass block of fusing to the glass gob that former is supplied with supply with operation, formpiston is descended and be the glass block extrusion forming of aforementioned fusing glass forming body extrusion process, formpiston is risen after die sinking and make the air cooling operation of the glass forming body cooling curing in the former with air-flow
It is characterized in that, the air pressure of the inboard of glass forming body upper rim in the described air cooling operation and the air pressure settings in the outside are cooled off described glass forming body after about equally.
2. the forming method of glasswork according to claim 1, it is characterized in that, above the cooled glass formed body, reach the cooling draught ramose lead-in path that the outer side setting makes described glass forming body inboard, and with the air-flow after the branch outer side is pressurizeed, with the air pressure settings in the air pressure of described inboard and the described outside for about equally.
3. the forming method of glasswork according to claim 2, it is characterized in that, the horizontal direction distance of vertical direction distance till establishing from the upper limb face of described glass forming body to the upper wall of described lead-in path till for H, from the vertical direction extended line of glass forming body outer side to lead-in path inlet opening end is the occasion of X described H, X to be set at 0.2＜X/H＜1.2.
4. the shaped device of a glasswork, be by cooling air the shaped device that carries out the glasswork of cooling curing with the glass forming body in this former of former and formpiston extrusion forming,
It is characterized in that, upper limb face at described former is provided with annular component, the part of the cooling air of described inboard to described glass forming body upper rim being supplied with the lead-in path that is formed at this annular component imports the outer side of glass forming body, and with the air pressure settings in the air pressure of glass forming body upper rim inboard and the outside for then described glass forming body being cooled off about equally.
5. the shaped device of glasswork according to claim 4 is characterized in that, the upper limb face of former is an essentially rectangular, and annular component is arranged at the long and short limit portion of this former.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP125682/1996 | 1996-05-21 | ||
| JP8125682A JPH09309734A (en) | 1996-05-21 | 1996-05-21 | Molding of glass goods and its device |
| JP125682/96 | 1996-05-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1165786A true CN1165786A (en) | 1997-11-26 |
| CN1148324C CN1148324C (en) | 2004-05-05 |
Family
ID=14916072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB971020345A Expired - Fee Related CN1148324C (en) | 1996-05-21 | 1997-01-09 | Shaping method and appts. of glass products |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPH09309734A (en) |
| KR (1) | KR970074701A (en) |
| CN (1) | CN1148324C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1294095C (en) * | 2001-10-06 | 2007-01-10 | 肖特股份公司 | Method and device for non-contact moulding of fused glass gobs |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100355544B1 (en) * | 1998-06-11 | 2002-11-18 | 한국전기초자 주식회사 | Cooling device for glass press forming equipment |
| KR100355555B1 (en) * | 1998-12-28 | 2002-11-18 | 한국전기초자 주식회사 | Chiller for Glass Compression Molding Equipment |
| KR100414176B1 (en) * | 1999-11-30 | 2004-01-13 | 한국전기초자 주식회사 | Apparatus for cooling shell-mold |
| US10577271B2 (en) | 2015-09-08 | 2020-03-03 | Saint-Gobain Glass France | Overpressure-assisted gravity bending method and device suitable therefor |
-
1996
- 1996-05-21 JP JP8125682A patent/JPH09309734A/en active Pending
- 1996-12-30 KR KR1019960077476A patent/KR970074701A/en not_active Application Discontinuation
-
1997
- 1997-01-09 CN CNB971020345A patent/CN1148324C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1294095C (en) * | 2001-10-06 | 2007-01-10 | 肖特股份公司 | Method and device for non-contact moulding of fused glass gobs |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09309734A (en) | 1997-12-02 |
| KR970074701A (en) | 1997-12-10 |
| CN1148324C (en) | 2004-05-05 |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |