CN101209890B - Glass lens forming device and glass lens forming method - Google Patents
Glass lens forming device and glass lens forming method Download PDFInfo
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- CN101209890B CN101209890B CN2007101867201A CN200710186720A CN101209890B CN 101209890 B CN101209890 B CN 101209890B CN 2007101867201 A CN2007101867201 A CN 2007101867201A CN 200710186720 A CN200710186720 A CN 200710186720A CN 101209890 B CN101209890 B CN 101209890B
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- patrix
- frit
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- 239000011521 glass Substances 0.000 title claims abstract description 162
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000007493 shaping process Methods 0.000 claims abstract description 171
- 238000010438 heat treatment Methods 0.000 claims abstract description 74
- 238000007731 hot pressing Methods 0.000 claims abstract description 51
- 241000219739 Lens Species 0.000 claims description 139
- 210000000695 crystalline len Anatomy 0.000 claims description 139
- 230000007246 mechanism Effects 0.000 claims description 25
- 230000000712 assembly Effects 0.000 claims description 17
- 238000000429 assembly Methods 0.000 claims description 17
- 239000002994 raw material Substances 0.000 abstract description 21
- 230000015572 biosynthetic process Effects 0.000 abstract description 4
- 230000032258 transport Effects 0.000 description 36
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- 238000001816 cooling Methods 0.000 description 12
- 230000002093 peripheral effect Effects 0.000 description 6
- 238000000465 moulding Methods 0.000 description 3
- 235000019628 coolness Nutrition 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009477 glass transition Effects 0.000 description 2
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- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
The present invention provided a glass lens shaping device and a glass lens shaping method. In the glass lens shaping device, to make each upper die (1B) move upwards relative to each lower die (1C) by means of the lifting of a push rod (7) during the former half section of a hot pressing step, so as to release each glass raw materials from holding state, thus each glass raw materials (G) is received at a proper position in the die groove of each lower die (1C) by self-weight. Then, to make each upper die (1B) move downwards by means of the descend of the push rod (7), so as to fill each glass raw materials (G) at the suitable position, then to shape a plurality of glass lens at one time using each shaping die assembly (1) in the refilling state, so as to avoid bad formation of the glass lens caused by insuitable filling position of the glass raw materials (G). In addition, each upper die (1B) is preheated by means of contacting with an upper heating component (6) during the former half section of the hot pressing step, so as to reduce heating time of the hot pressing step.
Description
Technical field
The invention relates to the glass lens forming device and the glass lens forming method that in heat-press step, utilize a plurality of shaping die assemblies (forming die module) a plurality of glass lenss that are shaped simultaneously.
Background technology
Before; General known following glass lens forming device: filling frit in counterdie in remaining on the sleeve of shaping die and the die cavity between the patrix (cavity); Make it softening and suppress at the die cavity internal heating said frit, be configured as the glass lens (for example opening 2004-149410 communique (paragraph numbers 45,46)) of regulation shape thus with reference to japanese patent laid-open 5-24869 communique (Fig. 6), Japanese Patent Laid.And, in japanese patent laid-open 5-24869 communique (Fig. 6), as previous example be shaped the simultaneously technology of a plurality of glass lenss of a plurality of shaping dies of utilizing is disclosed also.
In said known glass lens forming device, usually supply with frit here, with the counterdie that is clamped in shaping die and the filling state between the patrix.At this moment; If frit is loaded into the unsuitable position of the periphery skew in the die cavity of counterdie; Then when the remollescent frit is suppressed by heating, the part of frit can spill into around the die cavity, thus glass lens may produce be shaped bad.
Especially utilize a plurality of shaping dies that a plurality of frits are pressurizeed when suppressing simultaneously; If a part of frit is loaded into the unsuitable position of shaping die; Then not only this frit is caused fragmentation by excessive pressurization, thereby and the frit of other shaping dies also can produce understressed and possibly cause a large amount of glass lenss to produce being shaped bad.
In addition, in the formerly general known glass lens forming device, when utilizing a plurality of shaping dies to be shaped a plurality of glass lens simultaneously, normally utilize the single heating parts to heat each shaping die and also suppress.
Here; When on the counterdie of each shaping die or patrix, the die cavity face of glass lens being carried out precision sizing; Sometimes the lower surface of counterdie or the upper surface of patrix are ground as processing datum again, at this moment, the height dimension of counterdie or patrix reduces about 0.01mm.That is, having through grinding the counterdie form or the shaping die of patrix again, the size of its short transverse is sometimes than about the little 0.01～0.02mm of standard shaping die.
Therefore; Have a plurality of shaping dies that mix existence through the shaping die that grinds the counterdie form or patrix again with the standard shaping die when utilization; And when using the single heating parts to be shaped a plurality of glass lens simultaneously, the initial stage contact condition of each shaping die and single heating parts is inhomogeneous sometimes.Consequently, the single heating parts possibly apply excess pressure to the frit in the bigger standard shaping die of short transverse size and make frit broken.In addition, the frit that has in the shaping die that grinds the counterdie form or patrix again of short transverse undersized produces understressed, and glass lens possibly produce be shaped bad.
Summary of the invention
The object of the present invention is to provide a kind of glass lens forming device; Said glass lens forming device is when utilizing a plurality of shaping die assemblies to come to be shaped simultaneously a plurality of glass lens; Can suitably handle because of bad, thereby make glass lens the frit understressed or the bad and issuable shaping of pressurizeing.The present invention comprises the 1st invention and the 2nd invention of following detailed description.
The 1st invention is glass lens forming device and glass lens forming method, and the shaping of the glass lens that can prevent to be caused by the unsuitable loading position of the frit of nearly spheroid form is bad.
The 2nd invention is a glass lens forming device, can prevent uneven by the short transverse size of each shaping die assembly and the shaping glass lens that causes is bad.
At first; The glass lens forming device of the 1st invention possesses the hot pressing platform that heat-press step is used; Said heat-press step is to make the frit of the nearly spheroid form in the die cavity that is seated in a plurality of shaping die assemblies respectively be configured as a plurality of glass lenss simultaneously; Said glass lens forming device is characterised in that: said each shaping die assembly has patrix and counterdie; Said patrix and counterdie remain in the sleeve with the mode that frit is seated in the die cavity from the said frit of above-below direction clamping, are wherein forming said die cavity in the counterdie at least; Said hot pressing platform possesses reloading mechanism, and said reloading mechanism is that the position correction of said each frit in preceding half section die cavity that will be seated in said each shaping die assembly of heat-press step is the appropriate location, and said each frit is recharged; Said reloading mechanism constitutes as follows: the patrix of said each shaping die assembly is relatively moved on the direction of leaving mutually with counterdie; The state of said each frit from clamping discharged; Mobile through patrix and counterdie being returned after the specified time on the direction that is close, with said each frit appropriate location of recharging.
In glass lens forming device of the present invention; Preceding half section of heat-press step; Utilize reloading mechanism that the patrix of each shaping die assembly is relatively moved on the direction of leaving mutually with counterdie; And each frit is discharged from the state of clamping, so each frit is accommodated the appropriate location in the die cavity of each counterdie because of deadweight.And, mobile through utilizing reloading mechanism that patrix and counterdie are returned on the direction that is close after the specified time, thereby with each frit appropriate location of recharging.And, under the said suitable state that recharges, utilize each shaping die assembly a plurality of glass lenss that are shaped simultaneously, can prevent that therefore the shaping of the glass lens that the unsuitable loading position by each frit causes is bad.
On the other hand; Glass lens forming method of the present invention is the frit of the nearly sphere-like of clamping in comprising each shaping die assembly of patrix and counterdie, carries out the shaping of a plurality of glass lenss; Said glass lens forming method is characterised in that: preceding half section of heat-press step; The patrix of said each shaping die assembly is relatively moved on the direction of leaving mutually with counterdie, the state of said each frit from clamping discharged, make patrix and counterdie on the direction that is close, return mobile through after the specified time; With said each frit appropriate location of recharging, under the said state that recharges, utilize each shaping die assembly a plurality of glass lenss that are shaped simultaneously.
In glass lens forming method of the present invention, preceding half section of heat-press step each frit discharged from clamp position, so each frit is accommodated the appropriate location in the die cavity of each counterdie because of deadweight.And; Through after the specified time with each frit appropriate location of recharging; Under the said state that recharges, utilize each shaping die assembly a plurality of glass lenss that are shaped simultaneously, can prevent that therefore the shaping of the glass lens that the unsuitable loading position by frit causes is bad.
In glass lens forming device of the present invention; Said reloading mechanism can with as following mode constitute: each patrix of said each shaping die assembly is moved to the top relative to each counterdie; Said each frit is discharged from clamp position; Mobile through each patrix being returned after the specified time downwards, with said each frit appropriate location of recharging.
In glass lens forming device of the present invention; Said hot pressing platform possesses the single heating parts that can heat and pressurize simultaneously each patrix of each shaping die assembly; If said reloading mechanism so that said each patrix be moved upwards up to single heating parts position contacting till mode and constitute; Then can each patrix contacted with heater block and carry out preheating, thereby can shorten the heat-up time of heat-press step, therefore better preceding half section of heat-press step.
In glass lens forming method of the present invention; That is the frit of the nearly sphere-like of clamping in comprising each shaping die assembly of patrix and counterdie carries out in the glass lens forming method of shaping of a plurality of glass lenss; Preferably preceding half section each patrix that makes said each shaping die assembly of heat-press step relative to each counterdie to above move; Said each frit is discharged from clamp position, at this moment, each patrix is contacted and preheating with said heater block; Mobile through after the specified time each patrix being returned downwards; With said each frit appropriate location of recharging, under the said state that recharges, utilize single heating parts each shaping die assembly that pressurizes simultaneously, thereby be shaped a plurality of glass lenss simultaneously.
In addition; In glass lens forming device of the present invention; Said hot pressing platform possesses a plurality of heating rods that can heat each patrix of said each shaping die assembly and each patrix is pressurizeed individually; If said reloading mechanism so that said each patrix be moved upwards up to each heating rod position contacting till mode and constitute, then can each patrix be contacted and preheating with each heating rod preceding half section of heat-press step.This formation can shorten the heat-up time of heat-press step, and can in heat-press step, utilize each heating rod that each patrix is carried out indivedual suitable pressurizations, therefore better.
In glass lens forming method of the present invention; Preceding half section each patrix that makes said each shaping die assembly of heat-press step relative to each counterdie to above move; Said each frit is discharged from clamp position, at this moment, each patrix is contacted and preheating respectively with said a plurality of heating rods.This method can shorten the pressure dwell of heat-press step, and can carry out indivedual suitable pressurizations to each patrix, therefore better.
Secondly; The glass lens forming device of the 2nd invention possesses the hot pressing platform that heat-press step is used; Said heat-press step is to make the frit in the die cavity that is seated in a plurality of shaping die assemblies respectively be configured as a plurality of glass lenss simultaneously; Said glass lens forming device is characterised in that: said each shaping die assembly has patrix and counterdie, and said patrix and counterdie remain in the sleeve with the mode that frit is seated in the die cavity from the said frit of above-below direction clamping; Said hot pressing platform possesses a plurality of heating rods, and said a plurality of heating rods can heat each patrix of said each shaping die assembly and each patrix pressurizeed individually.
In the glass lens forming device of this 2nd invention; When in heat-press step in the die cavity of a plurality of shaping die assemblies respectively simultaneously during the molding glass lens; Utilize a plurality of heating rods that each patrixes of a plurality of shaping die assemblies is heated and each patrix is pressurizeed individually; Therefore, can prevent by the shaping of the uneven caused glass lens of size of the short transverse of each shaping die assembly bad.
In the glass lens forming device of this 2nd invention, usually, said heating rod or support built-in well heater in the mould of said heating rod.In addition; In glass lens forming device of the present invention, if said hot pressing platform possesses preheating mechanism, said preheating mechanism preceding half section each patrix that makes said each shaping die assembly of heat-press step to above move; So that each patrix contacts with said each heating rod; Then can carry out preheating to each patrix, thereby can shorten following glass heats time of heat-press step, therefore better according to invention preceding half section of heat-press step.
In addition, can implement and the relevant forming lens method of said the 2nd invention.That is; Said method comprises the heat-press step that the frit that makes in the die cavity that is seated in a plurality of shaping die assemblies respectively is configured as a plurality of glass lenss simultaneously; Said method is characterised in that: in each shaping die assembly; Said patrix and counterdie remain in the sleeve with the mode that said frit is placed in the die cavity, and said hot pressing platform is to utilize heating rod that each patrix of said each shaping die assembly is heated and each patrix is pressurizeed individually.
In said glass lens forming method, can or support internal heater in the mould of said heating rod at said heating rod.In addition, said hot pressing platform can possess preheating mechanism, said preheating mechanism be preceding half section each patrix that makes said each shaping die assembly of heat-press step to above move so that each patrix contacts with said each heating rod.
Description of drawings
With reference to graphic the present invention is explained more specifically.
Fig. 1 is the schematic plan view of each service platform of the glass lens forming device of expression embodiments of the invention 1.
Fig. 2 is the longitudinal section of the structure of expression shaping die assembly shown in Figure 1.
Fig. 3 is the plat of observing from the convex side of the glass lens that utilizes shaping die assembly shown in Figure 2 to be shaped to form.
Fig. 4 is with the plat that pallet amplifies expression that transports shown in Figure 1.
Fig. 5 is the longitudinal section that transports pallet shown in Figure 4.
Fig. 6 overlaps the plat that transports the riser on the pallet shown in Figure 4.
Fig. 7 transports pallet and riser shown in Figure 6 amplifies the cross-sectional view of expression in the lump with shown in Figure 1.
Fig. 8 is the front view of hot pressing platform shown in Figure 1.
Fig. 9 is the side-view of hot pressing platform shown in Figure 1.
Figure 10 is the side-view of the hot pressing platform of the state that rises of expression push rod shown in Figure 9.
Figure 11 is the longitudinal section of the shaping die assembly of the expression frit state that is loaded into the appropriate location in the shaping die assembly shown in Figure 2.
Figure 12 is the longitudinal section of the shaping die assembly of the expression frit state that is loaded into the out of position in the shaping die assembly shown in Figure 2.
Figure 13 representes that frit accommodates the longitudinal section of shaping die assembly of the state of suitable loading position from unsuitable loading position shown in Figure 12.
Figure 14 is the side-view of the hot pressing platform of the hot pressing state that descends respectively of expression push rod shown in Figure 9 and top heater block.
Figure 15 is illustrated in the longitudinal section of shaping die assembly that shaping die assembly internal shaping shown in Figure 2 the state of glass lens.
Figure 16 is the front view of single top heater block shown in Figure 8 being replaced by the hot pressing platform of a plurality of heating rods (heater rod).
Figure 17 be possess a plurality of heating rods shown in Figure 16 the hot pressing platform with the corresponding side-view of Fig. 9.
Figure 18 is illustrated in the longitudinal section of shaping die assembly that patrix forms the variation of the die cavity identical with the die cavity of counterdie shown in Figure 2.
Figure 19 is the longitudinal section of shaping die assembly of expression variation, in the said variation, forms the convex sphere at patrix shown in Figure 2, on the counterdie and and said convex sphere between form concavity sphere in order to the shaping concavees lens as die cavity.
Figure 20 is the plat of the telescopic variation of expression shaping die assembly shown in Figure 2.
Figure 21 is the XXI-XXI line sectional view of Figure 20.
Figure 22 is the front view of hot pressing platform of the glass lens forming device of embodiments of the invention 2.
Figure 23 is the side-view of hot pressing platform shown in Figure 22.
Figure 24 is the side-view of the hot pressing platform of the preheat mode that rises of expression push rod shown in Figure 23.
Figure 25 is the side-view of the hot pressing platform of the hot pressing state that descends respectively of expression push rod shown in Figure 23 and each heating rod.
The explanation of symbol
1,10 shaping die assemblies
1A, 10A sleeve
The 1B patrix
The 1C counterdie
1D, 1E flange part
The 1F die cavity
1G convex sphere
1H concavity sphere
2 transport pallet
The 2A circular depressions
2B, 4A, 11A circular port
The 2C upper board
The 2D lower panel
3 glass lenss
The 3A convex lens
3B supports projection
4,11 risers
4B fastens the support portion
5 lower heating parts
6 top heater blocks
7 push rods
8 drive pedestal
9 heating rods
The 10B sleeve hole
20 support the mould of heating rod 9
The G frit
S1 settles platform
S2 hot pressing platform
The S3 chill station
S4 takes out platform
Embodiment
Following with reference to accompanying drawing, successively the most preferred embodiment of the 1st invention and the 2nd invention is explained.
The glass lens forming device and the glass lens forming method of the 1st invention are described.In this explanation, give prosign to same or identical integrant, and omit the multiple explanation.Here; In the accompanying drawing of reference; Fig. 1 is the schematic plan view of service platform of the glass lens forming device of expression one embodiment, and Fig. 2 is the longitudinal section of the structure of expression shaping die assembly shown in Figure 1, and Fig. 3 utilizes shaping die assembly shown in Figure 2 and the plat of the glass lens that is shaped; Fig. 4 is that Fig. 5 is the longitudinal section that transports pallet shown in Figure 4 with the plat that pallet amplifies expression that transports shown in Figure 1.
The glass lens forming device of one embodiment is to make the interior frit of die cavity that is seated in a plurality of shaping die assemblies respectively be configured as the glass lens forming device of a plurality of glass lenss simultaneously.As shown in Figure 1; This glass lens forming device possesses four service platforms; Promptly settle platform S1, hot pressing platform S2, chill station S3 and take out platform S4, said four service platforms for example are to utilize suitable conveyer to transport successively with the pallet 2 that transports that the mode that laterally is arranged in a row is being loaded 8 shaping die assemblies 1.
Settling platform S1 is the platform of settling step to use, and said arrangement step is to transport on each the shaping die assembly 1 that laterally is arranged in a row on the pallet 2 and loads in order to frit is loaded into respectively, and the said needed time of arrangement step is approximately 3 minutes.In addition, each shaping die assembly 1 is about 10mm, highly is the small shaping membrane module about 20mm for for example diameter.
Hot pressing platform S2 is the platform that heat-press step is used; Said heat-press step is simultaneously each frit that is loaded on each shaping die assembly 1 to be heated so that said each frit softens and pressurizes; In said heat-press step, frit is heated to glass viscosity becomes 10
7～10
12The temperature of pool, for example 600 ℃ of left and right sides degree.The needed time of said heat-press step is approximately 4 minutes.
Chill station S3 is the platform that cooling step is used, and said cooling step is with cooling off at each glass lens that transports each shaping die assembly 1 internal shaping on the pallet 2.In said cooling step, the glass lens that is shaped is depressed the temperature that is cooled to below the glass transition point (glass transition point) adding.The needed time of said cooling step is approximately 2 minutes.
Taking out platform S4 is to take out the platform that step is used, and said taking-up step is in order to taking out at each glass lens that transports each shaping die assembly 1 internal cooling on the pallet 2, and the said needed time of taking-up step was approximately about 3 minutes.
Here, as shown in Figure 2, each shaping die assembly 1 has the patrix 1B and the counterdie 1C of short cylindrical shape, and patrix 1B and counterdie 1C are concentric shape with the mode in the sleeve 1A cylindraceous of being entrenched in sliding freely and remain in the sleeve 1A.Forming the flange part 1D of diameter greater than the diameter of sleeve 1A in the upper end of patrix 1B.Said flange part 1D forms with the mode of leaving the upper surface of sleeve 1A under the state of closing slightly of closing that the lower surface at patrix 1B contacts with the upper surface of counterdie 1C.
On the other hand, forming the diameter flange part 1E much at one of diameter and sleeve 1A in the lower end of counterdie 1C.And; Forming the die cavity 1F in order to the glass lens as shown in Figure 33 that is shaped on the upper surface of counterdie 1C, the periphery of said glass lens 3 shown in Figure 3 that is the circular single face convex lens 3A from about the diameter 3mm is at the glass lens 3 of the shape of the outstanding a pair of support projection 3B of diametric(al), 3B.
As shown in Figure 4, transport pallet 2 and form elongated near rectangular tabularly, on the medullary ray of its length direction, form 8 the circular depressions 2A of total that laterally are arranged in a row with predetermined distance.Each circular depressions 2A forms flange part 1E and the size of loading each shaping die assembly 1 with sustained height of the counterdie 1C of chimeric said each shaping die assembly 1.
In addition; Form an example of sustained height as the high-precision at the end that makes each the circular depressions 2A that transports pallet 2; Following example is arranged: as shown in Figure 5, transport pallet 2 and constitute by upper board 2C and lower panel 2D, upper board 2C is forming each circular port 2B of corresponding each circular depressions 2A; The lower surface of lower panel 2D and said upper board 2C fastens, and planeness is higher and have a specific thickness.
Here; In the hot pressing platform S2 of glass lens forming device; As make each the patrix 1B that transports each the shaping die assembly 1 that laterally is arranged in a row on the pallet 2 and loads relative to each counterdie 1C simultaneously to above the anchor clamps that move, as shown in Figure 6, transporting overlapping riser 4 on the pallet 2.
As shown in Figure 7, each circular port 4A of riser 4 forms the external diameter that is slightly larger than each the sleeve 1A that is loaded in each the shaping die assembly 1 that transports on the pallet 2, and the interior week of each circular port 4A does not contact each sleeve 1A.In addition, each circular port 4A forms the specified diameter size less than the external diameter of the flange part 1D of each patrix 1B, and a peripheral part of each circular port 4A can fasten with the flange part 1D of each patrix 1B.And the both ends of the width of riser 4 are outstanding with specified amount from the two edges portion of the width that transports pallet 2, and said tuck becomes with so that fastening support portion 4B, the 4B that riser 4 moves to the top.
On the other hand; Like Fig. 8 and shown in Figure 9; Single lower heating parts 5, single top heater block 6, and a plurality of push rods 7 are being set in the hot pressing platform S2 of glass lens forming device; Wherein said single lower heating parts 5 are in order to each the counterdie 1C that is loaded in each the shaping die assembly 1 that transports on the pallet 2 is heated; Said single top heater block 6 can heat and pressurization downwards simultaneously each patrix 1B, and a plurality of push rods 7 can fasten through the leading section with the fastening support portion 4B that overlaps the riser 4 that transports pallet 2,4B riser 4 is moved to the top.
For push rod 7; So that the mode that riser 4 moves up and down with horizontality; Below that fastens support portion 4B disposes for example 2 push rods with the mode of the predetermined distance that separates each other therein, another fasten support portion 4B below also likewise dispose 2 push rods with the mode of the predetermined distance that separates each other.Each push rod 7 can connect the hot pressing platform S2 that is loading lower heating parts 5 and go up and down, and the bottom of each push rod 7 is fixed on and drives on the pedestal 8, thus the lifting action of respective drive pedestal 8 and going up and down simultaneously.
Utilize aforesaid formation; Shown in figure 10; Thereby the leading section of each push rod 7 upwards pushes away fastening support portion 4B, the 4B of riser 4 if driving pedestal 8 rises; Then riser 4 the mode of the periphery that does not contact each sleeve 1A sleekly to above move, a peripheral part of each circular port 4A of riser 4 upwards pushes away the flange part 1D of each patrix 1B.And, the upper surface of each patrix 1B is contacted with single top heater block 6.
That is; In the glass lens forming device of an embodiment; The reloading mechanism that is constructed as follows: utilize to be arranged on driving pedestal 8, a plurality of push rod 7 of hot pressing platform S2 and to overlap the riser 4 that transports on the pallet 2, each patrix 1B of each shaping die assembly 1 is moved to the top relative to each counterdie 1C.
The glass lens forming method of the glass lens forming device that uses an embodiment then, is described.At first, with transporting the arrangement platform S1 last back (with reference to Fig. 1) that pallet 2 is transported to glass lens forming device, in being loaded in each the shaping die assembly 1 that transports on the pallet 2, loading spherical glass raw material G (with reference to Figure 11) respectively.
That is; Patrix 1B is extracted from the sleeve 1A of shaping die assembly 1, on the die cavity 1F of counterdie 1C, place spherical glass raw material G, then patrix 1B is embedded sleeve 1A; Clamping spherical glass raw material G between the lower surface of patrix 1B and die cavity 1F loads frit G thus.
Spherical glass raw material G is able to use because of the volume management easily, and it critically forms the minimum sphere of scale error of diameter, and the diameter of spherical glass raw material G is set at the for example suitable size about 2mm.In addition, frit G is not limited to sphere, also can use the frit of suitable shapes such as pill shape.
Here, spherical glass raw material G is shown in figure 11 usually, and clamping also is seated in the appropriate location of the central part in the die cavity 1F, but sometimes also can clamping shown in figure 12 and be seated in the unsuitable position of the periphery skew in die cavity 1F.
Here; If keep the unsuitable filling state of frit G shown in Figure 12; Then in hot pressing platform S2, simultaneously each frit G is heated and make them softening and when pressurizeing; Sometimes frit G is by excessive pressurization and broken, or because of soften a part that makes frit G spill into die cavity 1F around.Therefore, take place for fear of state of affairs so, on hot pressing platform S2 preceding half section, as after utilize as stating reloading mechanism with the frit appropriate location of recharging.
After the arrangement step of settling platform S1 finishes,, will transport pallet 2 and be transported in the lump on the hot pressing platform S2 with each shaping die assembly 1 like Fig. 8 and shown in Figure 9.And preceding half section of the heat-press step on said hot pressing platform S2 operated as follows, thereby this operation is to be adapted to appropriate location shown in figure 11 and to recharge in order to all are seated in each frit G of spheric in each shaping die assembly 1.
That is, shown in figure 10, make to drive pedestal 8 and rise simultaneously with each push rod 7, fastening support portion 4B, the 4B with riser 4 upwards pushes away with the leading section of each push rod 7, thereby riser 4 is moved to the top.Then; Flange part 1D with each patrix 1B of each shaping die assembly 1 pushes away to the top with a peripheral part of each circular port 4A of riser 4; Each the frit G of sphere that thus clamping is seated between the lower surface of die cavity 1F and each patrix 1B of each counterdie 1C discharges from clamp position, makes each frit G become free state.At this moment, the upper surface of each patrix 1B is contacted and preheating with top heater block 6.
Utilize the operation of so recharging; Even spherical glass raw material G clamping shown in figure 12 is seated in the unsuitable position to the periphery skew of die cavity 1F; This spherical glass raw material G also can promptly accommodate the appropriate location (with reference to Figure 13) of the central part in the die cavity 1F because of deadweight rolls in the die cavity 1F soon.Accomplish the needed time of this process, in required about 4 minutes time, about 2 minutes and 30 seconds preceding half time that accounts for heat-press step is as the specified time in heat-press step.
Through after about 2 minutes and 30 seconds preceding half time of heat-press step, then as shown in Figure 9, driving pedestal 8 is descended with each push rod 7 simultaneously, riser 4 moves downwards because of deadweight.Then, each patrix 1B of each shaping die assembly 1 moves downwards because of deadweight, thus with each frit G of spheric appropriate location shown in Figure 11 of recharging.
Afterwards, in about 1 minute and 30 seconds the time of second half section of heat-press step, the single top heater block 6 that makes shown in figure 14 descends, and contacts with the upper surface of each patrix 1B of each shaping die assembly 1, heats each patrix 1B thus.Utilize lower heating parts 5 to see through simultaneously and transport pallet 2 each counterdie 1C of heating, heat each the frit G in each shaping die assembly 1 thus and make it softening.At this moment, each patrix 1B contacts and preheating with heater block 6 preceding half section of heat-press step in advance, so each frit G is at short notice by suitable heating and positively softening.
So; Each frit G in each shaping die assembly 1 is carried out suitably softening; And utilize 6 couples of each patrix 1B of single top heater block counterdie 1C downwards to pressurize; Between the patrix 1B and counterdie 1C of each shaping die assembly 1, be formed separately the glass lens 3 of no cacoplastic standard shape shown in figure 15 thus.
Then, will transport pallet 2 and be transported to chill station S3 (with reference to Fig. 1) in the lump, will glass lens 3 solidified in glass lens about 2 minutes the essential time of 3 coolings of the standard shape of each shaping die assembly 1 internal shaping with each shaping die assembly 1.
Afterwards, will transport pallet 2 and be transported to taking-up platform S4 (with reference to Fig. 1) in the lump, in each shaping die assembly 1, take out through cooling off solidified glass lens 3 respectively with each shaping die assembly 1.That is, extract patrix 1B from the sleeve 1A of each shaping die assembly 1, take out respectively through cooling and solidified glass lens 3 from the die cavity 1F of counterdie 1C.
As described above said; According to the glass lens forming device of an embodiment and the glass lens forming method that uses the glass lens forming device of an embodiment; Preceding half section of heat-press step on hot pressing platform S2; Each frit G temporarily discharges from the state of the clamping by the lower surface of the die cavity 1F of counterdie 1C and patrix 1B, therefore can make each frit G accommodate the appropriate location in the die cavity 1F of each counterdie 1C because of deadweight.And; Through after the specified time; With each frit G appropriate location between the lower surface of die cavity 1F and patrix 1B of counterdie 1C of recharging; Therefore a plurality of glass lenss 3 of hot compacting simultaneously under the said state that recharges can prevent that the shaping of the glass lens 3 that the unsuitable loading position by frit G causes is bad.
Glass lens forming device of the present invention is not limited to a said embodiment.For example can the single top heater block 6 that be equipped on the hot pressing platform S2 as shown in Figure 8 be replaced by a plurality of heating rods 9 shown in figure 16.Each heating rod 9 is provided in respectively can be to each patrix 1B the position of not heating and pressurizeing of each shaping die assembly 1.
At this moment, preceding half section of the heat-press step on hot pressing platform S2, shown in figure 17, make to drive pedestal 8 and rise simultaneously, thereby riser 4 is moved to the top with each push rod 7, the upper surface of each patrix 1B is contacted and preheating with each heating rod 9.
In addition, as the component parts of reloading mechanism like Fig. 9 and a plurality of push rods 7 shown in Figure 10, the replaceable lift arm (omitting diagram) that riser 4 is promoted to the top etc. that fastens for lower surface with the fastening support portion 4B of riser 4,4B.
In addition, between the patrix 1B and counterdie 1C of shaping die assembly 1 as shown in Figure 2, can form the suitable die cavity that substitutes die cavity 1F.For example shown in figure 18, also can form the die cavity 1F identical, between shaping lenticular lens (biconvex lens) at the lower surface of patrix 1B with the die cavity 1F of counterdie 1C.In addition, shown in figure 19, also can form convex sphere 1G at the lower surface of patrix 1B, on the upper surface of counterdie 1C and and the sphere teat 1G of patrix 1B between form in order to the concavity sphere 1H of shaping concavees lens with as die cavity.
On the other hand, shaping die assembly as shown in Figure 21 is replaceable is like Figure 20 and shaping die assembly 10 shown in Figure 21.Said shaping die assembly 10 possesses the discoideus sleeve 10A that substitutes sleeve 1A as shown in Figure 2, on the said discoideus sleeve 10A, with concentric circles equally spaced forming distinguish chimeric patrix 1B and counterdie 1C 3 sleeve hole 10B.
At this moment, with so that the discoideus riser 11 that 3 patrix 1B move to the top substitutes risers 4 shown in Figure 2 overlaps on the sleeve 10A.Said riser 11 forms with the diameter mode of diameter greater than sleeve 10A, so that peripheral part can fasten with suitable push rod or lift arm.And, on said riser 11, with each sleeve hole 10B position overlapped of sleeve 10A on, form 3 circular port 11A that internal diameter is slightly larger than the internal diameter of sleeve hole 10B.
In addition, the glass lens forming device of the 2nd invention is explained.The 2nd invention is in the die cavity of a plurality of shaping die assemblies respectively simultaneously during the molding glass lens; Utilize a plurality of heating rods that each patrixes of a plurality of shaping die assemblies is heated and each patrix is pressurizeed individually, so can prevent that the shaping of the glass lens that the size inequality by the short transverse of each shaping die assembly causes is bad.Further with reference to figure explanation present embodiment.Figure 22 to Figure 24 is the figure of the glass lens forming device of expression embodiments of the invention 2.In addition, explanation for ease, Figure 22 representes and before the identical structure of Figure 16.In addition, in following explanation,, give prosign and omit the multiple explanation for the integrant same or same with the device of said embodiment 1.
Like Figure 22 and shown in Figure 23; Single lower heating parts 5, a plurality of heating rod 9, and a plurality of push rods 7 are being set in the hot pressing platform S2 of glass lens forming device; Wherein said single lower heating parts 5 are in order to each the counterdie 1C that is loaded in each the shaping die assembly 1 that transports on the pallet 2 is heated; Said a plurality of heating rod 9 can heat and pressurization individually downwards each patrix 1B, and said a plurality of push rods 7 can make riser 4 move to the top through fastening with the leading section of the fastening support portion 4B that overlaps the riser 4 that transports pallet 2,4B.
For push rod 7; So that the mode that riser 4 moves up and down with horizontality; Below that fastens support portion 4B disposes for example 2 push rods with the mode of the predetermined distance that separates each other therein, another fasten support portion 4B below also likewise dispose 2 push rods with the mode of the predetermined distance that separates each other.Each push rod 7 can connect the hot pressing platform S2 that is loading lower heating parts 5 and go up and down, and the bottom of each push rod 7 is fixed on and drives on the pedestal 8, thus the up-down start of respective drive pedestal 8 and going up and down simultaneously.
Utilize as described formation; Shown in figure 24; Thereby fastening support portion 4B, the 4B of riser 4 upwards pushed away if drive the rise leading section that makes each push rod 7 of pedestal 8; Then riser 4 the mode of the periphery that does not contact each sleeve 1A sleekly to above move, a peripheral part of each circular port 4A of riser 4 upwards pushes away the flange part 1D of each patrix 1B.And, the upper surface of each patrix 1B is contacted with a plurality of heating rods 9 respectively.
That is; In the glass lens forming device of said embodiment; The preheating mechanism that is constructed as follows: utilize to be arranged on driving pedestal 8, a plurality of push rod 7 of hot pressing platform S2 and to overlap the riser 4 that transports pallet 2, make each patrix 1B of each shaping die assembly 1 move and contact with each heating rod 9 to the top.
In the glass lens forming device of an embodiment that constitutes in the above described manner,, in being loaded in each the shaping die assembly 1 that transports on the pallet 2, load spherical glass raw material G (with reference to Figure 11) respectively with after transporting pallet 2 and being transported to arrangement platform S1 shown in Figure 1.That is, extract under the state of patrix 1B at sleeve 1A from shaping die assembly 1, on the die cavity 1F of counterdie 1C, load spherical glass raw material G.Then, patrix 1B is embedded sleeve 1A, clamping spherical glass raw material G between the lower surface of patrix 1B and die cavity 1F thus, thus load spherical glass raw material G.
Spherical glass raw material G is able to use because of the volume management easily, and it critically forms the minimum sphere of scale error of diameter, and the diameter of spherical glass raw material G is set at the for example suitable size about 2 mm.In addition, frit G is not limited to sphere, also can use the frit of suitable shapes such as pill shape.
Said spherical glass raw material G is shown in figure 11 usually, is seated in the appropriate location of the central part in the die cavity 1F, but sometimes also can be shown in figure 12, and clamping also is seated in the unsuitable position that the periphery in die cavity 1F squints.Yet, unsuitable filling state of frit G so, can after state preceding half section of hot pressing platform S2, utilize each patrix 1B that preheating mechanism makes shaping die assembly 1 to move and elimination when contact with each heating rod 9 to the top.
After the arrangement step end of settling on the platform S1,, will transport pallet 2 and be transported in the lump on the hot pressing platform S2 with each shaping die assembly 1 like Figure 22 and shown in Figure 23.And preceding half section of the heat-press step on said hot pressing platform S2 operated as follows, this operation be with so that each patrix 1B of each shaping die assembly 1 contact and preheating with each heating rod 9.
That is, shown in figure 24, make to drive pedestal 8 and rise simultaneously with each push rod 7, fastening support portion 4B, the 4B with riser 4 upwards pushes away with the leading section of each push rod 7, thereby riser 4 is moved to the top.Then, the flange part 1D with each patrix 1B of each shaping die assembly 1 pushes away to the top with a peripheral part of each circular port 4A of riser 4, and the upper surface of each patrix 1B is contacted and preheating with each heating rod 9.Accomplish the needed time of this process, in required about 4 minutes time, account for about 2 minutes and 30 seconds preceding half time of heat-press step in heat-press step.
In about 2 minutes and 30 seconds preceding half time of said heat-press step, clamping also is seated in each the frit G of sphere between the lower surface of die cavity 1F and each patrix 1B of each counterdie 1C, discharges and becomes free state from clamp position.Consequently; Even spherical glass raw material G clamping shown in figure 12 also is seated in the unsuitable position to the periphery skew of die cavity 1F; This spherical glass raw material G also can promptly accommodate the appropriate location (with reference to Figure 13) of the central part in the die cavity 1F because of deadweight rolls in the die cavity 1F soon.
Through after about 2 minutes and 30 seconds preceding half time of heat-press step, shown in figure 23, driving pedestal 8 is descended with each push rod 7 simultaneously, riser 4 moves downwards because of deadweight.Then, each patrix 1B of each shaping die assembly 1 moves downwards because of deadweight.Thus with each frit G of spheric appropriate location shown in Figure 11 of recharging.
Afterwards, shown in figure 25 in about 1 minute and 30 seconds the time of second half section of heat-press step, make respectively 9 of a plurality of heating rods not Xia Jiang and contact with the upper surface of each patrix 1B of each shaping die assembly 1, heat each patrix 1B thus.Simultaneously, utilize lower heating parts 5 to see through and transport pallet 2 each counterdie 1C of heating, heat each the frit G in each shaping die assembly 1 thus and make it softening.At this moment, each patrix 1B contacts and preheating with a plurality of heating rods 9 preceding half section of heat-press step in advance, so each frit G is at short notice by suitable heating and positively softening.
So, each the frit G in each shaping die assembly 1 is carried out suitably softening, and utilize 9 couples of each patrix 1B counterdie 1C downwards of a plurality of heating rods Jia Ya not.Thus, even each shaping die assembly 1 exists the size of short transverse uneven, also can in the patrix 1B and the die cavity 1F between the counterdie 1C of each shaping die assembly 1, be formed separately the glass lens 3 of no cacoplastic standard shape shown in figure 15.
Then, will transport pallet 2 and be transported to chill station S3 (with reference to Fig. 1) in the lump, will glass lens 3 solidified in glass lens about 2 minutes the essential time of 3 coolings of the standard shape of each shaping die assembly 1 internal shaping with each shaping die assembly 1.
Afterwards, will transport pallet 2 and be transported to taking-up platform S4 (with reference to Fig. 1) in the lump, in each shaping die assembly 1, take out through cooling off solidified glass lens 3 respectively with each shaping die assembly 1.That is, extract patrix 1B from the sleeve 1A of each shaping die assembly 1, take out respectively through cooling and solidified glass lens 3 from die cavity 1 F of counterdie 1 C.
As described above said; Glass lens forming device according to embodiment 2; In the heat-press step on hot pressing platform S2; Utilize each patrix 1B of 9 pairs of a plurality of shaping die assemblies 1 of a plurality of heating rods to heat and each patrix 1B is pressurizeed individually; Therefore even it is uneven that there is the size of short transverse in each shaping die assembly 1, also can in the die cavity 1F of each shaping die assembly 1, be formed separately the glass lens 3 of the standard shape shown in Fig. 15, can prevent that the shaping of the glass lens 3 that the size inequality by the short transverse of each shaping die assembly 1 causes is bad.
Therefore in addition,, make each patrix 1B of each shaping die assembly 1 move and contact with each heating rod 9 to the top at preceding half section of heat-press step, but at preceding half section each patrix of preheating of heat-press step, thereby heat-up time of heat-press step can be shortened.
In addition, can in heating rod 9, well heater be set, and in the mould 20 (with reference to Figure 23, Figure 24 and Figure 25) of supporting heating rod 9, embed well heater.
As stated, according to the glass lens forming device of the 1st invention, heat-press step preceding half section with each frit from utilizing the state release of patrix and counterdie clamping, so each frit is accommodated the appropriate location in the die cavity of each counterdie because of deadweight.And, utilize patrix and counterdie and a plurality of glass lenss that are shaped simultaneously under the state of the appropriate location of recharging at each frit, can prevent that therefore the shaping of the glass lens that the unsuitable loading position by frit causes is bad.
Likewise,, each frit discharged from clamp position, so each frit is accommodated the appropriate location in the die cavity of each counterdie because of deadweight preceding half section of heat-press step according to glass lens forming method of the present invention.And through after the specified time with each frit appropriate location of recharging, therefore a plurality of glass lenss that under the said state that recharges, are shaped simultaneously can prevent that the shaping of the glass lens that the unsuitable loading position by frit causes is bad.
In addition; Glass lens forming device according to the 2nd invention; In the heat-press step in the die cavity of a plurality of shaping die assemblies respectively simultaneously during the molding glass lens; Utilize a plurality of heating rods that each patrixes of a plurality of shaping die assemblies is heated and each patrix is pressurizeed individually, therefore, can prevent that the shaping of the glass lens that the size inequality by the short transverse of each shaping die assembly causes is bad.
In addition; When possessing the situation of preheating mechanism; Can be at preceding half section each patrix of preheating of heat-press step; Thereby can shorten the heat-up time of heat-press step, said preheating mechanism be preceding half section each patrix that makes said each shaping die assembly of heat-press step to above move so that each patrix contacts with said each heating rod.
Claims (6)
1. a glass lens forming device possesses the hot pressing platform that heat-press step is used, and said heat-press step is to make the frit of the nearly spheroid form in the die cavity that is seated in a plurality of shaping die assemblies respectively be configured as a plurality of glass lenss simultaneously,
Said glass lens forming device is characterised in that:
Said each shaping die assembly has patrix and counterdie, and said patrix and counterdie remain in the sleeve with the mode that frit is seated in the die cavity from the said frit of above-below direction clamping, are forming said die cavity in the wherein said at least counterdie;
Said hot pressing platform possesses reloading mechanism; Said reloading mechanism is that the position correction of the frit in preceding half section die cavity that will be seated in said each shaping die assembly of heat-press step is the appropriate location, recharges with the frit to nearly spheroid form;
Said reloading mechanism constitutes as follows: the patrix of said each shaping die assembly is relatively moved on the direction of leaving mutually with counterdie; The state of said each frit from clamping discharged; Mobile through patrix and counterdie being returned after the specified time on the direction that is close, with said each frit appropriate location of recharging;
Wherein said hot pressing platform possesses a plurality of heating rods that can heat each patrix of said each shaping die assembly and each patrix is pressurizeed individually; Said reloading mechanism so that said each patrix be moved upwards up to said each heating rod position contacting till mode constitute.
2. glass lens forming method, the frit of the nearly sphere-like of clamping carries out the shaping of a plurality of glass lenss in comprising each shaping die assembly of patrix and counterdie,
Said glass lens forming method is characterised in that:
Preceding half section of heat-press step; The patrix of each shaping die assembly is relatively moved on the direction of leaving mutually with counterdie; The state of said each frit from clamping discharged; Mobile through patrix and counterdie being returned after the specified time on the direction that is close, with said each frit appropriate location of recharging, under the said state that recharges, utilize each shaping die assembly a plurality of glass lenss that are shaped simultaneously.
3. glass lens forming method, the frit of the nearly sphere-like of clamping carries out the shaping of a plurality of glass lenss in comprising each shaping die assembly of patrix and counterdie,
Said glass lens forming method is characterised in that:
Preceding half section each patrix that makes said each shaping die assembly of heat-press step relative to each counterdie to above move; Said each frit is discharged from clamp position, at this moment, each patrix is contacted and preheating respectively with a plurality of heating rods; Mobile through after the specified time each patrix being returned downwards; With said each frit appropriate location of recharging, under the said state that recharges, utilize said a plurality of heating rod that each shaping die assembly is pressurizeed individually, thereby be shaped a plurality of glass lenss simultaneously.
4. a glass lens forming device possesses the hot pressing platform that heat-press step is used, and said heat-press step is to make the frit in the die cavity that is seated in a plurality of shaping die assemblies respectively be configured as a plurality of glass lenss simultaneously,
Said glass lens forming device is characterised in that:
Said each shaping die assembly has patrix and counterdie, and said patrix and counterdie are to be placed in the mode in the die cavity with said frit and to remain in the sleeve;
Said hot pressing platform possesses a plurality of heating rods, and said a plurality of heating rods can heat each patrix of said each shaping die assembly and each patrix pressurizeed individually.
5. glass lens forming device as claimed in claim 4 is characterized in that:
Said heating rod or support built-in well heater in the mould of said heating rod.
6. like claim 4 or 5 described glass lens forming devices, it is characterized in that:
Said hot pressing platform possesses preheating mechanism, said preheating mechanism be preceding half section each patrix that makes said each shaping die assembly of heat-press step to above move so that each patrix contacts with said each heating rod.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006356949A JP4933247B2 (en) | 2006-12-30 | 2006-12-30 | Glass lens molding apparatus and glass lens molding method |
| JP2006356950 | 2006-12-30 | ||
| JP2006356950A JP4933248B2 (en) | 2006-12-30 | 2006-12-30 | Glass lens molding equipment |
| JP2006356949 | 2006-12-30 | ||
| JP2006-356950 | 2006-12-30 | ||
| JP2006-356949 | 2006-12-30 |
Publications (2)
| Publication Number | Publication Date |
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| CN101209890A CN101209890A (en) | 2008-07-02 |
| CN101209890B true CN101209890B (en) | 2012-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2007101867201A Expired - Fee Related CN101209890B (en) | 2006-12-30 | 2007-11-12 | Glass lens forming device and glass lens forming method |
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| Country | Link |
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| JP (1) | JP4933247B2 (en) |
| CN (1) | CN101209890B (en) |
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| TWM439053U (en) * | 2012-03-23 | 2012-10-11 | Mirle Automation Corp | Molding structure for manufacturing a molded glass part |
| CN107471048A (en) * | 2017-09-11 | 2017-12-15 | 成都随如科技有限公司 | A kind of grinding attachment based on lens blank |
| CN110576122A (en) * | 2019-09-12 | 2019-12-17 | 无锡锡洲电磁线有限公司 | flat copper wire flattening device |
| CN113787678B (en) * | 2021-08-31 | 2023-08-01 | 东莞晶彩光学有限公司 | Injection mold of multichannel lens and molding method thereof |
| CN114230156B (en) * | 2021-12-30 | 2024-02-09 | 安徽光智科技有限公司 | Aspherical lens mould |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1406890A (en) * | 2001-08-27 | 2003-04-02 | 保谷株式会社 | Molding shaper and method thereof |
| CN1765786A (en) * | 2001-08-27 | 2006-05-03 | Hoya株式会社 | Press molding apparatus and press molding method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0450125A (en) * | 1990-06-19 | 1992-02-19 | Canon Inc | Production device of optical element |
| JP4269411B2 (en) * | 1999-06-22 | 2009-05-27 | ソニー株式会社 | Lens molding method |
| JP4383322B2 (en) * | 2004-11-10 | 2009-12-16 | オリンパス株式会社 | Optical element molding apparatus and molding method |
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2006
- 2006-12-30 JP JP2006356949A patent/JP4933247B2/en not_active Expired - Fee Related
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1406890A (en) * | 2001-08-27 | 2003-04-02 | 保谷株式会社 | Molding shaper and method thereof |
| CN1765786A (en) * | 2001-08-27 | 2006-05-03 | Hoya株式会社 | Press molding apparatus and press molding method |
Non-Patent Citations (3)
| Title |
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| JP平4-50125A 1992.02.19 |
| JP特开2001-10826A 2001.01.16 |
| JP特开2001-220154A 2001.08.14 |
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| JP4933247B2 (en) | 2012-05-16 |
| CN101209890A (en) | 2008-07-02 |
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