CN219214072U - Back pressure die device - Google Patents
Back pressure die device Download PDFInfo
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- CN219214072U CN219214072U CN202223358465.3U CN202223358465U CN219214072U CN 219214072 U CN219214072 U CN 219214072U CN 202223358465 U CN202223358465 U CN 202223358465U CN 219214072 U CN219214072 U CN 219214072U
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- Prior art keywords
- die
- optical lens
- air inlet
- groove
- plate
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- 230000003287 optical effect Effects 0.000 claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- 238000010438 heat treatment Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000000465 moulding Methods 0.000 abstract description 15
- 238000000034 method Methods 0.000 abstract description 6
- 238000012545 processing Methods 0.000 abstract description 2
- 239000011265 semifinished product Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 238000007493 shaping process Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model belongs to the field of optical lens processing, and particularly relates to a back pressure die device. In the utility model, the semi-finished optical lens is placed on a lower die, after the semi-finished optical lens is heated by an external structure, the upper die and the lower die are folded, air pressure is introduced into external equipment through an air pressure interface, and the semi-finished optical lens acts on the semi-finished optical lens through an air inlet, so that the semi-finished optical lens is attached to a forming groove for forming; in the molding process, the side (corresponding to the convex surface of the optical lens) of the semi-finished optical lens, which is not coated with the ink, is attached to the molding groove for back pressure molding, and the height difference does not exist on the side, so that the deformation of the optical lens in the molding process can be avoided.
Description
Technical Field
The utility model belongs to the field of optical lens processing, and particularly relates to a die for optical lens forming.
Background
When the optical lens is molded, the semi-finished product is heated and placed in a mold, and the semi-finished product is extruded by inflating the semi-finished product into the mold to form a convex surface in the mold for positive pressure molding. However, when the concave surface of the optical lens needs to be sprayed with the ink layer, the semi-finished product needs to be sprayed with the ink layer at first, and then the semi-finished product is put into a mould for forming, and at the moment, the ink layer is contacted with the forming convex surface of the mould during forming; the ink layer does not need to be entirely covered on the concave surface of the optical lens, so that the ink layer comprises an ink area and a non-ink area, a certain height difference exists between the ink area and the non-ink area, and when the positive pressure forming is carried out by external inflation, the final formed product is deformed due to the height difference formed by the ink area and the non-ink area; after the product is molded, a birefringence test, a high-frequency ripple test, a deformation measurement and the like are required to be carried out on a transparent area (a non-ink area), and the tested product is inevitably distorted.
Disclosure of Invention
In order to solve the above problems, an object of the present utility model is to provide a back pressure die device, which can perform back pressure molding on a product with a concave surface coated with ink, and can avoid deformation during molding.
In order to achieve the above object, the present utility model has the following technical scheme.
The back pressure die device comprises an upper die and a lower die, and is characterized in that a forming groove corresponding to the convex surface of the optical lens is formed in the upper side of the lower die, an air inlet is formed in the lower side of the upper die, the air inlet corresponds to the forming groove in position, an air pressure interface is further formed in the upper die, and the air pressure interface is communicated with the air inlet. In the device, an optical lens semi-finished product is placed on a lower die, after the optical lens semi-finished product is heated through an external structure, the upper die and the lower die are folded, air pressure is introduced into external equipment through an air pressure interface, and the air pressure acts on the optical lens semi-finished product through an air inlet, so that the optical lens semi-finished product is attached to a forming groove for forming; in the molding process, the side (corresponding to the convex surface of the optical lens) of the semi-finished optical lens, which is not coated with the ink, is attached to the molding groove for back pressure molding, and the height difference does not exist on the side, so that the deformation of the optical lens in the molding process can be avoided.
Further, the upper die is further provided with a material pressing die plate, the lower die is further provided with a buffer groove, the forming groove is arranged in the buffer groove, the material pressing die plate is provided with avoidance cavities penetrating through the upper side and the lower side of the material pressing die plate corresponding to the buffer groove, and the air inlet corresponds to the buffer groove through the avoidance cavities. The pressing template is used for pressing the semi-finished optical lens; and based on the setting of dashpot for the optical lens semi-manufactured goods can laminate gradually in the shaping inslot, make shaping effect better.
Further, the number of the air inlets is plural.
Further, the upper die comprises an upper die base and an air inlet plate, and the air pressure interface is arranged on the side surface of the upper die base; the upper side of the air inlet plate is provided with a connecting groove, a plurality of air inlets are formed in the lower side of the air inlet plate, and the upper ends of the air inlets penetrate into the connecting groove; the upper die holder is fixedly arranged on the upper side of the air inlet plate so as to shield the connecting groove; and a connecting channel is arranged in the upper die holder, and two ends of the connecting channel are respectively communicated with the air pressure interface and the connecting groove. Above-mentioned atmospheric pressure interface, link up through-hole, link up the setting of groove and a plurality of air inlet for the atmospheric pressure lets in the route more reasonable, makes follow-up shaping effect better.
Further, a heating structure for heating is further arranged in the pressing template. The heating structure is arranged in the material pressing template, so that the heating process can be realized without the participation of an external heating structure.
Further, a first water inlet and a first water outlet are formed in the side face of the material pressing template, and a first circulating channel communicated with the first water inlet and the first water outlet is further formed in the material pressing template. The first water inlet, the first water outlet and the first circulating channel can realize the circulating cooling effect.
Further, a heating structure for heating is further arranged in the lower die. The heating structure is arranged in the lower die, so that the heating process can be realized without the participation of an external heating structure.
Further, a second water port and a second water outlet are arranged on the side face of the lower die, and a second circulating channel communicated with the second water port and the second water outlet is further arranged in the lower die. The arrangement of the second water inlet, the second water outlet and the second circulating channel can realize the circulating cooling effect.
The device has the advantages that in the device, the semi-finished optical lens is placed on the lower die, after the semi-finished optical lens is heated through the external structure, the upper die and the lower die are folded, air pressure is introduced into external equipment through an air pressure interface, and the semi-finished optical lens acts on the semi-finished optical lens through the air inlet, so that the semi-finished optical lens is attached to the forming groove for forming; in the molding process, the side (corresponding to the convex surface of the optical lens) of the semi-finished optical lens, which is not coated with the ink, is attached to the molding groove for back pressure molding, and the height difference does not exist on the side, so that the deformation of the optical lens in the molding process can be avoided.
Drawings
Fig. 1 is an exploded view of a first perspective of the present utility model.
Fig. 2 is an exploded view of a second perspective of the present utility model.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Referring to fig. 1-2, the present embodiment provides a back pressure die apparatus, which includes an upper die 1 and a lower die 2, and is characterized in that a forming groove 21 corresponding to a convex surface 31 of an optical lens 3 is provided on the upper side of the lower die 2, an air inlet 11 is provided on the lower side of the upper die 1, the air inlet 11 corresponds to the forming groove 21, an air pressure interface 12 is further provided on the upper die 1, and the air pressure interface 12 is connected with the air inlet 11.
In this embodiment, the upper mold 1 is further provided with a pressing mold plate 13, the lower mold 2 is further provided with a buffer groove 22, the forming groove 21 is disposed in the buffer groove 22, the pressing mold plate 13 is provided with an avoidance cavity 131 penetrating through the upper side and the lower side of the pressing mold plate 13 corresponding to the buffer groove 22, and the air inlet 11 corresponds to the buffer groove 22 through the avoidance cavity 131.
In the present embodiment, the number of the air inlets 11 is plural.
In this embodiment, the upper die 1 includes an upper die holder 14 and an air inlet plate 15, and the air pressure interface 12 is disposed on the side surface of the upper die holder 14; the upper side of the air inlet plate 15 is provided with a connecting groove 151, a plurality of air inlets 11 are all arranged on the lower side of the air inlet plate 15, and the upper ends of the air inlets 11 penetrate into the connecting groove 151; the upper die holder 14 is fixedly arranged on the upper side of the air inlet plate 15 so as to cover the engagement groove 151; and a linking channel 141 is arranged in the upper die holder 14, and two ends of the linking channel 141 are respectively communicated with the air pressure interface 12 and the linking groove 151.
In this embodiment, a heating structure for heating is further disposed in the pressing die plate 13. The heat generating structure may specifically be a heat generating tube.
In this embodiment, a first water inlet 132 and a first water outlet 133 are disposed on the side of the pressing die plate 13, and a first circulation channel for communicating with the first water inlet 132 and the first water outlet 133 is also disposed in the pressing die plate 13.
In the present embodiment, a heat generating structure for generating heat is also provided in the lower die 2. The heat generating structure may specifically be a heat generating tube.
In this embodiment, the side surface of the lower mold 2 is provided with a second water inlet 23 and a second water outlet 24, and a second circulation channel for communicating with the second water inlet 23 and the second water outlet 24 is also provided in the lower mold 2.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (8)
1. The back pressure die device comprises an upper die and a lower die, and is characterized in that a forming groove corresponding to the convex surface of the optical lens is formed in the upper side of the lower die, an air inlet is formed in the lower side of the upper die, the air inlet corresponds to the forming groove in position, an air pressure interface is further formed in the upper die, and the air pressure interface is communicated with the air inlet.
2. The back pressure die device according to claim 1, wherein the upper die is further provided with a pressing die plate, the lower die is further provided with a buffer groove, the forming groove is arranged in the buffer groove, the pressing die plate is provided with avoidance cavities penetrating through the upper side and the lower side of the pressing die plate corresponding to the buffer groove, and the air inlet corresponds to the buffer groove through the avoidance cavities.
3. A counter-pressure die assembly as claimed in claim 2 wherein said air inlet is a plurality.
4. A counter-pressure die assembly as claimed in claim 3 wherein said upper die comprises an upper die base and an air inlet plate, said air pressure port being provided in a side of said upper die base; the upper side of the air inlet plate is provided with a connecting groove, a plurality of air inlets are formed in the lower side of the air inlet plate, and the upper ends of the air inlets penetrate into the connecting groove; the upper die holder is fixedly arranged on the upper side of the air inlet plate so as to shield the connecting groove; and a connecting channel is arranged in the upper die holder, and two ends of the connecting channel are respectively communicated with the air pressure interface and the connecting groove.
5. The back pressure die device according to claim 2, wherein a heating structure for heating is further provided in the die plate.
6. The back pressure die device according to claim 2, wherein the side surface of the material pressing die plate is provided with a first water inlet and a first water outlet, and a first circulation channel for communicating with the first water inlet and the first water outlet is further arranged in the material pressing die plate.
7. A counter-pressure die assembly as claimed in claim 1 wherein a heat generating structure is also provided in said lower die for generating heat.
8. The back pressure die device according to claim 1, wherein the side surface of the lower die is provided with a second water inlet and a second water outlet, and a second circulation channel for communicating with the second water inlet and the second water outlet is further provided in the lower die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223358465.3U CN219214072U (en) | 2022-12-13 | 2022-12-13 | Back pressure die device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223358465.3U CN219214072U (en) | 2022-12-13 | 2022-12-13 | Back pressure die device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219214072U true CN219214072U (en) | 2023-06-20 |
Family
ID=86752586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223358465.3U Active CN219214072U (en) | 2022-12-13 | 2022-12-13 | Back pressure die device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219214072U (en) |
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2022
- 2022-12-13 CN CN202223358465.3U patent/CN219214072U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 22 Changdong Street, Huangjiang Town, Dongguan City, Guangdong Province, 523000 Patentee after: Dongguan boyide Technology Industry Co.,Ltd. Country or region after: China Address before: 523000 No.2 Xianglong street, Changlong village, Huangjiang Town, Dongguan City, Guangdong Province Patentee before: Dongguan boyide Technology Industry Co.,Ltd. Country or region before: China |