CN205416228U - Hot runner structure of optical lens piece mould - Google Patents
Hot runner structure of optical lens piece mould Download PDFInfo
- Publication number
- CN205416228U CN205416228U CN201521042024.XU CN201521042024U CN205416228U CN 205416228 U CN205416228 U CN 205416228U CN 201521042024 U CN201521042024 U CN 201521042024U CN 205416228 U CN205416228 U CN 205416228U
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- upper mold
- optical lens
- sprue bushing
- hot runner
- nozzle
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Abstract
The utility model discloses a hot runner structure of optical lens piece mould, including fixed last mould (1) with can go up mould (1) relatively and open and shut and enclose into lower mould (2) of die cavity (3) with last mould (1), last mould (1) in be equipped with purt mouth (4), output and die cavity (3) of purt mouth (4) communicate with each other, last mould (1) in still be equipped with and be used for fused penetrate mouth (5) of raw materials of moulding plastics, the output of penetrating mouth (5) meet with purt mouth (4) input, penetrate mouth (5) go up the cover and be equipped with heater (6) that are used for its heating, the input of penetrating mouth (5) meet with outside feeding device, last mould (1) on has still seted up and to carry the coolant liquid purt mouth (4) and to carry out refrigerated cooling channel (7) to purt mouth (4). The utility model discloses simple structure can practice thrift manufacturing cost to production efficiency is high, optics product stable quality.
Description
[technical field]
This utility model relates to a kind of mould, more particularly to the hot runner structure of a kind of optical lens die.
[background technology]
At present, the processing of optical glass is typically all mold injection molding.nullThe structure of traditional optical lens die the most all includes upper die and lower die，Upper mold and lower mold are combined into the die cavity of optical glass molding，The sprue bushing communicated with die cavity is set in upper mold，The nozzle injecting molten plastic in sprue bushing is then located at the outside of mould，Owing to sprue bushing must be connected with nozzle，So the sprue bushing of this mould structure is the longest，Thus cause the sprue of running gate system the longest，Although this mould structure is simple，Easy to process，And condition of molding regulation is easily，But the shortcoming that this mould structure has following several respects: 1、Plastic material waste is serious，Because during optical glass coagulation forming in die cavity，Plastic material in sprue bushing also can solidify，Owing to sprue bushing is the longest，So the plastic rubber material of solidification is the most a lot of in the runner of sprue bushing，And this part material is to need to cut off to separate with the optical glass of molding，But this part material can not recycling shaped optical lens，So the plastic rubber material of solidification is wasted exactly in the runner of sprue bushing；2, molding cycle is long, and owing to sprue bushing is the longest, the time that its interior plastic rubber material cooling expends is long, and cavity filling is the longest with the dwell time, causes the formed product cycle long；3, wire drawing phenomenon is obvious, and sprue bushing is the longest easily causes shaped article wire drawing phenomenon, affects product quality；4, the longest due to sprue bushing, and the runner of sprue bushing communicates with die cavity, so the space of actually die cavity is big, big because of cavity space during volume production, produced gas is more, is unfavorable for stablizing of product；5, sprue bushing temperature is uncontrollable, can be on the impact of the hot runner structure precision of a whole set of optical lens die, because the temperature of nozzle and sprue bushing contact position can reach about 300 degree.
Therefore, this utility model is based on above deficiency and produces.
[utility model content]
This utility model purpose is to overcome the deficiencies in the prior art, it is provided that a kind of simple in construction, it is possible to save production cost, and production efficiency is high, the hot runner structure of the optical lens die of optical articles stay in grade.The hot runner structure of this kind of optical lens die, the technology requirement that the molding cycle making eyeglass is short, material saving, each side such as product (optical glass) precision, size, shape meet on drawing, the particularly surface profile degree (face type PV value) of product (optical glass) reaches 1um or below 0.5um, eccentric below 3um.
This utility model is achieved through the following technical solutions:
A kind of hot runner structure of optical lens die, including the upper mold 1 fixed with can relative upper mold 1 folding surround the lower mold 2 of die cavity 3 with upper mold 1, it is characterized in that: in described upper mold 1, be provided with sprue bushing 4, the outfan of described sprue bushing 4 communicates with die cavity 3, it is additionally provided with for the nozzle 5 that injection raw material is melted in described upper mold 1, the outfan of described nozzle 5 connects with sprue bushing 4 input, the heating wire 6 for it is heated it is arranged with on described nozzle 5, the input of described nozzle 5 connects with outside feeding device, the cooling duct 7 being further opened with coolant being transported to sprue bushing 4 in described upper mold 1 and sprue bushing 4 is cooled down.
The hot runner structure of optical lens die as above, it is characterized in that: described upper mold 1 includes fixing side template 11, described sprue bushing 4 is located in fixing side template 11, it is removably connected with fixing side draw on described fixing side template 11 and pays plate 12, described nozzle 5 is paid plate 12 through fixing side draw and is connected with sprue bushing 4 input, described fixing side draw is paid and is removably connected with fixing side on plate 12 and adds plate 13, and described fixing side adds plate 13 and is provided with the connecting hole 14 being connected with nozzle 5 input for outside feeding device.
The hot runner structure of optical lens die as above, it is characterized in that: described lower mold 2 includes and fix side template 11 surrounding the drawer at movable side template 21 of described die cavity 3, it is removably connected with drawer at movable side gripper shoe 22 on described drawer at movable side template 21, described drawer at movable side gripper shoe 22 is removably connected with drawer at movable side fetching plate 23.
The hot runner structure of optical lens die as above, it is characterised in that: also it is arranged with the temp.-sensing wire 8 for measuring its temperature on described nozzle 4.
The hot runner structure of optical lens die as above, it is characterised in that: it is additionally provided with, on described sprue bushing 4, the annular water channel communicated with cooling duct 7.
The hot runner structure of optical lens die as above, it is characterised in that: described upper mold 1 is provided with pilot hole 15, and described lower mold 2 is provided with the lead 24 carrying out guiding when it is with upper mold 1 matched moulds.
The hot runner structure of optical lens die as above, it is characterised in that: it is additionally provided with taper guide pillar 25 in described upper mold 1, described lower mold 2 is additionally provided with the taper guide pin bushing 26 coordinated with taper guide pillar 25.
Compared with prior art, this utility model has the following advantages:
1, it is provided with in upper mold of the present utility model for the nozzle that injection raw material is melted; the outfan of nozzle connects with sprue bushing input; the heating wire for it is heated it is arranged with on nozzle; the input of nozzle connects with outside feeding device; described upper mold is further opened with cooling duct, coolant can be transported to sprue bushing.The hot runner structure of this kind of lens mold can be solved the temperature at conventional hot flow path too high by the control to coolant temperature, thus affected the temperature of mould, causes the difference problem of upper mold and the temperature of lower mold.Now by the control to coolant temperature, it is possible to solve the difference of conventional hot runner structure mold temperature, it is ensured that the precision of mould.Nozzle arranges the inside of upper mold, therefore the length of sprue bushing can be shortened, therefore, the sprue length of whole running gate system just shortens, and in sprue bushing, the plastic rubber material of coagulation forming just tails off, and decreases waste, and due to sprue contraction in length, the formed product cycle shortens, and production efficiency improves, and the quality of product is also greatly improved.
2, this utility model is simple and compact for structure, with low cost, and by the control of temperature at hot flow path, ensure that mold temperature balances, therefore mould and die accuracy is the most well guaranteed, the surface profile degree (face type PV value) of the product (eyeglass) so produced reaches 1um or below 0.5um, eccentric below 3um, so being suitable for popularization and application.
[accompanying drawing explanation]
Fig. 1 is one of this utility model schematic diagram；
Fig. 2 is the two of this utility model schematic diagram；
Fig. 3 is the schematic diagram of the hot runner structure of traditional moulds.
[detailed description of the invention]
Below in conjunction with the accompanying drawings this utility model is further described:
A kind of hot runner structure of optical lens die, including the upper mold 1 fixed with can relative upper mold 1 folding surround the lower mold 2 of die cavity 3 with upper mold 1, it is provided with sprue bushing 4 in described upper mold 1, the outfan of described sprue bushing 4 communicates with die cavity 3, it is additionally provided with for the nozzle 5 that injection raw material is melted in described upper mold 1, the outfan of described nozzle 5 connects with sprue bushing 4 input, the heating wire 6 for it is heated it is arranged with on described nozzle 5, the input of described nozzle 5 connects with outside feeding device, the cooling duct 7 being further opened with coolant being transported to sprue bushing 4 in described upper mold 1 and sprue bushing 4 is cooled down.Nozzle 5 arranges the inside of upper mold 1, therefore the length of sprue bushing 4 can be shortened, therefore, the sprue length of whole running gate system just shortens, and in sprue bushing 4, the plastic rubber material of coagulation forming just tails off, and decreases waste, and due to sprue contraction in length, the formed product cycle shortens, and production efficiency improves, and the quality of product is also greatly improved.Owing to plastics are constantly in molten condition in nozzle 5, shorter sprue bushing 4 makes the sprue of running gate system be greatly shortened, and compared with common flow passage structure, shortens out mould-closing stroke, the demoulding of product and molding cycle can shorten more than 55%, and are advantageously implemented automated production.
Described upper mold 1 includes fixing side template 11, described sprue bushing 4 is located in fixing side template 11, it is removably connected with fixing side draw on described fixing side template 11 and pays plate 12, described nozzle 5 is paid plate 12 through fixing side draw and is connected with sprue bushing 4 input, described fixing side draw is paid and is removably connected with fixing side on plate 12 and adds plate 13, and described fixing side adds plate 13 and is provided with the connecting hole 14 being connected with nozzle 5 input for outside feeding device.
Described lower mold 2 includes and fixes side template 11 surrounding the drawer at movable side template 21 of described die cavity 3, described drawer at movable side template 21 is removably connected with drawer at movable side gripper shoe 22, described drawer at movable side gripper shoe 22 is removably connected with drawer at movable side fetching plate 23.
Removably connecting herein typically can be with bolts.
The temp.-sensing wire 8 for measuring its temperature also it is arranged with on described nozzle 4.Temp.-sensing wire 8 can detect the temperature of nozzle 4, thus the molten condition of plastic rubber material in controlling nozzle 4.
Being additionally provided with the annular water channel (being not drawn in figure) communicated with cooling duct 7 on described sprue bushing 4, annular water channel is looped around on sprue bushing 4, it is possible to cool down sprue bushing 4 well, and guarantees that the cooling everywhere of sprue bushing 4 is uniform.
Described upper mold 1 is provided with pilot hole 15, and described lower mold 2 is provided with the lead 24 carrying out guiding when it is with upper mold 1 matched moulds.Lead 24 and pilot hole 15 coordinate the effect playing guiding, be that folding mould is the most accurate.Described upper mold 1 is provided with the taper guide pillar 25 of ultraprecise fine positioning, and described lower mold 2 is provided with the taper guide pin bushing 26 of ultraprecise fine positioning, during matched moulds can precision positioning, so folding mould location the most accurate.
Claims (7)
1. the hot runner structure of an optical lens die, including the upper mold (1) fixed with can relative upper mold (1) folding surround the lower mold (2) of die cavity (3) with upper mold (1), it is characterized in that: in described upper mold (1), be provided with sprue bushing (4), the outfan of described sprue bushing (4) communicates with die cavity (3), it is additionally provided with for the nozzle (5) that injection raw material is melted in described upper mold (1), the outfan of described nozzle (5) connects with sprue bushing (4) input, the heating wire (6) for it is heated it is arranged with on described nozzle (5), the input of described nozzle (5) connects with outside feeding device, the cooling duct (7) being further opened with coolant being transported to sprue bushing (4) in described upper mold (1) and sprue bushing (4) is cooled down.
The hot runner structure of optical lens die the most according to claim 1, it is characterized in that: described upper mold (1) includes fixing side template (11), described sprue bushing (4) is located in fixing side template (11), it is removably connected with fixing side draw on described fixing side template (11) and pays plate (12), described nozzle (5) is paid plate (12) through fixing side draw and is connected with sprue bushing (4) input, described fixing side draw is paid and is removably connected with fixing side on plate (12) and adds plate (13), described fixing side adds plate (13) and is provided with the connecting hole (14) being connected with nozzle (5) input for outside feeding device.
The hot runner structure of optical lens die the most according to claim 2, it is characterized in that: described lower mold (2) includes and fix side template (11) surrounding the drawer at movable side template (21) of described die cavity (3), it is removably connected with drawer at movable side gripper shoe (22) on described drawer at movable side template (21), described drawer at movable side gripper shoe (22) is removably connected with drawer at movable side fetching plate (23).
4. according to the hot runner structure of the optical lens die described in claim 1 or 2 or 3, it is characterised in that: also it is arranged with the temp.-sensing wire (8) for measuring its temperature on described nozzle (4).
5. according to the hot runner structure of the optical lens die described in claim 1 or 2 or 3, it is characterised in that: it is additionally provided with, on described sprue bushing (4), the annular water channel communicated with cooling duct (7).
6. according to the hot runner structure of the optical lens die described in claim 1 or 2 or 3, it is characterized in that: described upper mold (1) is provided with pilot hole (15), described lower mold (2) is provided with the lead (24) carrying out guiding when it is with upper mold (1) matched moulds.
7. according to the hot runner structure of the optical lens die described in claim 1 or 2 or 3, it is characterized in that: be additionally provided with taper guide pillar (25) in described upper mold (1), described lower mold (2) is additionally provided with the taper guide pin bushing (26) coordinated with taper guide pillar (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521042024.XU CN205416228U (en) | 2015-12-14 | 2015-12-14 | Hot runner structure of optical lens piece mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521042024.XU CN205416228U (en) | 2015-12-14 | 2015-12-14 | Hot runner structure of optical lens piece mould |
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| Publication Number | Publication Date |
|---|---|
| CN205416228U true CN205416228U (en) | 2016-08-03 |
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| CN201521042024.XU Active CN205416228U (en) | 2015-12-14 | 2015-12-14 | Hot runner structure of optical lens piece mould |
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| CN (1) | CN205416228U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105397993A (en) * | 2015-12-14 | 2016-03-16 | 中山市众盈光学有限公司 | Hot runner structure of optical lens mold |
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2015
- 2015-12-14 CN CN201521042024.XU patent/CN205416228U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105397993A (en) * | 2015-12-14 | 2016-03-16 | 中山市众盈光学有限公司 | Hot runner structure of optical lens mold |
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| GR01 | Patent grant |