CN219686387U - Self-ejection demolding resin lens injection mold - Google Patents
Self-ejection demolding resin lens injection mold Download PDFInfo
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- CN219686387U CN219686387U CN202320334060.1U CN202320334060U CN219686387U CN 219686387 U CN219686387 U CN 219686387U CN 202320334060 U CN202320334060 U CN 202320334060U CN 219686387 U CN219686387 U CN 219686387U
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- resin lens
- demolding
- patterns
- cooling
- mold
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- 239000011347 resin Substances 0.000 title claims abstract description 48
- 229920005989 resin Polymers 0.000 title claims abstract description 48
- 238000002347 injection Methods 0.000 title claims abstract description 26
- 239000007924 injection Substances 0.000 title claims abstract description 26
- 238000001816 cooling Methods 0.000 claims abstract description 57
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 41
- 230000007246 mechanism Effects 0.000 claims abstract description 14
- 238000001746 injection moulding Methods 0.000 claims description 20
- 238000003756 stirring Methods 0.000 claims description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 8
- 230000000149 penetrating effect Effects 0.000 abstract description 4
- 238000000926 separation method Methods 0.000 abstract description 3
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 238000000465 moulding Methods 0.000 description 7
- 238000002156 mixing Methods 0.000 description 6
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model relates to the technical field of resin lens production and processing, in particular to a self-ejection demolding resin lens injection mold; the mold comprises a workbench, a support, a first hydraulic cylinder, an upper mold, a lower mold, a pneumatic demolding mechanism and a cooling mechanism, wherein a cavity is formed in the top of the lower mold, and a plurality of demolding cavities penetrating through the bottom of the lower mold are formed in the bottom of the cavity. According to the utility model, the traditional airbag expansion jack-up upper die is converted into the upper die and lower die separation mode by utilizing the first hydraulic cylinder, so that the structure is simple, the process of waiting for gradual expansion of the airbag is not needed, and the production efficiency is higher; through cover at the lower mould outside and establish the cooling cover, cooperation circulating pump and water tank can take away a large amount of heat of lower mould for resin lens in the die cavity cools off fast, and the jet-propelled drawing of patterns ejection resin lens's of pneumatic demoulding mechanism mode is favorable to protecting the mirror surface of resin lens not damaged, is convenient for the drawing of patterns.
Description
Technical Field
The utility model relates to the technical field of resin lens production and processing, in particular to a self-ejection demolding resin lens injection mold.
Background
The resin lens is an optical lens which is manufactured by taking resin as a raw material and performing processing synthesis and polishing through a precise chemical process, is widely applied to various glasses, and has the advantages of light weight, impact resistance, difficult fragmentation, safety, comfort in wearing, convenient processing, wide application and higher ultraviolet absorption capacity than glass lenses. Most of the prior glasses are resin lenses, the resin lenses are in a liquid state before production and molding, and the resin lenses are formed by injecting liquid resin into a mold during production and cooling and molding.
Among the prior art, injection mold comprises two parts of last mould and lower mould, and the last mould is installed on the movable mould board of injection molding machine, and the lower mould is installed on the fixed mould board of injection molding machine. The upper mold and the lower mold are closed to form a pouring system and a cavity during injection molding, and the upper mold and the lower mold are separated to take out the resin lens during mold opening. In the existing injection mold, after injection molding is completed, after the upper mold and the lower mold are opened, a product is ejected upwards by using a thimble arranged in the lower mold, and a lens is taken out manually after ejection. However, the ejector pin is easy to puncture or scratch the mirror surface in the process of ejecting the lens, so that the defect of a product is caused, the mirror surface of the lens needs to be smooth, and mirror surface burrs are easy to generate after the ejection mechanism is installed for injection molding.
In order to solve the above problems, a self-ejecting and demolding resin lens injection mold is disclosed in the patent with publication number CN218366162U, which changes the traditional ejection mode of ejecting resin lens directly by ejector pins into a mode of sucking the lens by suction cups, and separates the upper mold from the lower mold by utilizing a pneumatic ejection mechanism, thereby realizing the ejection effect of the lens, being beneficial to protecting the mirror surface of the resin lens from damage, uniformly applying force to eject the lens and preventing the resin lens from cracking due to uneven pressure.
However, the technical scheme still has more defects in practical application;
in the demolding process of the mold, a plurality of air pumps are required to charge air into the air bags through the air charging needles, the air bags expand along with the air bags, and then the upper mold is jacked up, so that the upper mold and the lower mold are separated, the structure is complex, the upper mold can be jacked up only when the air bags expand to have larger jacking force, and a great amount of time is consumed for waiting for the air bags to expand, so that the production efficiency is low;
because the resin injection molding raw materials are comparatively viscous, only need to cool down after solidifying for a long time can the drawing of patterns, adopt sucking disc component to carry out the drawing of patterns to the resin lens injection molding product, if the cooling is not completely easy to cause the damage to the resin lens injection molding product, inconvenient drawing of patterns carries out.
Therefore, the resin lens injection mold capable of demolding from ejection is provided.
Disclosure of Invention
The utility model aims at solving the problems in the background technology and provides a self-ejection demolding resin lens injection mold.
In order to achieve the above object, the technical scheme of the present utility model is as follows:
the utility model provides a from resin lens injection mold of ejecting drawing of patterns, includes workstation, fixed mounting in the support of workstation, fixed mounting in the first pneumatic cylinder on support top, fixed mounting in the last mould of first pneumatic cylinder output shaft, set up in lower mould, pneumatic demoulding mechanism and cooling body under the last mould, lower mould fixed mounting is on the brace table, brace table fixed mounting is on the workstation, the die cavity has been seted up at the top of lower mould, and closes the die cavity after last mould and lower mould compound die, a plurality of drawing of patterns chambeies that run through the lower mould bottom have been seted up to the bottom of die cavity, pneumatic demoulding mechanism includes drawing of patterns rubber kicking block, second pneumatic cylinder, air pump, air duct and drawing of patterns gas pocket, second pneumatic cylinder fixed mounting is in the brace table, the output end fixed mounting drawing of second pneumatic cylinder drawing of patterns rubber kicking block sets up in the drawing of patterns intracavity, drawing of patterns rubber kicking block is located the position with the die cavity bottom surface, the lateral wall in the air jet holder of storage chamber, be equipped with a plurality of air pockets on the jet holder, the air duct sets up in the cooling body through the cooling body and the cooling body through the cooling body, the cooling body is located in the cooling body through the input end and the cooling body, the cooling body through the water tank, the cooling body sets up in the cooling body through the input end and the cooling body.
Specifically, the side of going up the mould is equipped with the pipeline of moulding plastics, the inside of going up the mould and the position that corresponds the pipeline of moulding plastics are equipped with the runner of moulding plastics.
Specifically, the bottom of last mould still is equipped with the reference column, be equipped with the slot with reference column looks adaptation on the lower mould.
Specifically, the inboard fixed mounting of cooling cover has water-cooling pipeline, water-cooling pipeline is the screw thread form parcel in the outside of lower mould, water-cooling pipeline's input is connected with the output of water tank through the water pipe, water-cooling pipeline's output passes through the input of water pipe and circulating pump.
Specifically, the inside of cooling cover still fixed mounting has the heat conduction layer, the heat conduction layer is metal level or graphite layer.
Specifically, the mounting bracket is erect to the water tank top, fixed mounting has the third pneumatic cylinder on the mounting bracket, the output shaft of third pneumatic cylinder has the (mixing) shaft, the (mixing) shaft stretches into inside the water tank, fixed mounting has stirring vane on the (mixing) shaft.
The beneficial effects of the utility model are as follows:
according to the self-ejection demolding resin lens injection mold, the traditional air bag is inflated and jacked up to realize the separation mode of the upper mold and the lower mold, and the upper mold and the lower mold are separated by utilizing the first hydraulic cylinder, so that the self-ejection demolding resin lens injection mold is simple in structure, does not need to wait for the gradual inflation process of the air bag, and is high in production efficiency; through cover at the lower mould outside and establish the cooling cover, cooperation circulating pump and water tank can take away a large amount of heat of lower mould for resin lens in the die cavity cools off fast, and the jet-propelled drawing of patterns ejection resin lens's of pneumatic demoulding mechanism mode is favorable to protecting the mirror surface of resin lens not damaged, is convenient for the drawing of patterns.
Drawings
FIG. 1 is a schematic diagram of a self-ejecting and demolding resin lens injection mold in an embodiment of the utility model;
FIG. 2 is a schematic view of the structure of the inside of the lower mold according to the embodiment of the present utility model;
fig. 3 is a longitudinal sectional view of a cooling jacket in an embodiment of the utility model.
In the figure: the device comprises a workbench 1, a bracket 2, a first hydraulic cylinder 3, an upper die 4, a positioning column 5, a lower die 6, a cooling cover 7, a supporting table 8, a second hydraulic cylinder 9, an air pump 10, a water tank 11, a circulating pump 12, a mounting frame 13, a third hydraulic cylinder 14, a stirring shaft 15, stirring blades 16, a slot 17, a cavity 18, a demolding rubber top block 19, a demolding cavity 20, an air jet seat 21, demolding air holes 22, a lifting frame 23, an injection molding pipeline 24, a water cooling pipeline 25 and a heat conducting layer 26.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-3, a self-ejecting demolding resin lens injection mold comprises a workbench 1, a bracket 2 fixedly installed on the workbench 1, a first hydraulic cylinder 3 fixedly installed at the top end of the bracket 2, an upper mold 4 fixedly installed on the output shaft of the first hydraulic cylinder 3, a lower mold 6 arranged right below the upper mold 4, a pneumatic demolding mechanism and a cooling mechanism, wherein the lower mold 6 is fixedly installed on a supporting table 8, the supporting table 8 is fixedly installed on the workbench 1, a cavity 18 is formed at the top of the lower mold 6, the cavity 18 is closed after the upper mold 4 and the lower mold 6 are clamped, a plurality of demolding cavities 20 penetrating through the bottom of the lower mold 6 are formed at the bottom of the cavity 18, the pneumatic demolding mechanism comprises a demolding rubber top block 19, a second hydraulic cylinder 9, an air pump 10, an air duct and demolding air holes 22, the second hydraulic cylinder 9 is fixedly installed in the supporting table 8, the output end of the second hydraulic cylinder 9 is fixedly provided with a demoulding rubber top block 19, the demoulding rubber top block 19 is arranged in a demoulding cavity 20, the demoulding rubber top block 19 is positioned at a position flush with the bottom surface of the cavity 18, the side wall of the demoulding cavity 20 is provided with an air injection seat 21 with a built-in air storage cavity, the air injection seat 21 is provided with a plurality of demoulding air holes 22, the input end of the air injection seat 21 is communicated with the output end of an air pump 10 through an air duct, the air pump 10 is arranged on a workbench 1, the cooling mechanism comprises a cooling cover 7 covered outside the lower mould 6, a circulating pump 12 arranged on the workbench 1 and a water tank 11 arranged on the workbench 1, the input end of the cooling cover 7 is connected with the output end of the water tank 11 through a water pipe, the output end of the cooling cover 7 is communicated with the input end of the circulating pump 12 through a water pipe, the output end of the circulating pump 12 is connected with the input end of the water tank 11 through a water pipe.
In this embodiment, the first hydraulic cylinder 3 can drive the upper die 4 to move towards or away from the lower die 6, and compared with the traditional method that the air bag expands and jacks up the upper die 4 to realize the separation of the upper die 4 and the lower die 6, the structure is simple, the process of gradually expanding the air bag does not need to be waited, and the production efficiency is higher.
In this embodiment, a plurality of demolding cavities 20 penetrating through the bottom of the lower mold 6 are formed at the bottom of the cavity 18, and the demolding cavities 20 are uniformly distributed on the bottom of the cavity 18, so that the resin lens can be ejected by uniformly applying the jet pressure, and the resin lens is prevented from being demolded difficultly due to uneven jet pressure.
In this embodiment, the lower sides of the demolding cavities 20 penetrating through the bottom of the lower mold 6 are also communicated with each other, a lifting frame 23 is further arranged between the mold rubber top block and the second hydraulic cylinder 9, the lifting frame 23 is utilized to move up and down in the cavities which are communicated with each other below the plurality of demolding cavities 20, and only one second hydraulic cylinder 9 is needed to drive the plurality of demolding rubber top blocks 19 to move up and down together, so that the production cost is saved.
In the embodiment, during mold closing and molding, the demolding rubber top block 19 is positioned at the position of the bottom surface of the cavity 18 to facilitate the injection molding of the resin lens, and the demolding rubber top block 19 cannot damage the surface of the resin lens; when air injection demolding is needed, the second hydraulic cylinder 9 is used for driving the demolding rubber ejector block 19 to move downwards, so that the air injection seat 21 and the demolding air hole 22 can be leaked out, high-pressure air can be input into the air injection seat 21 by matching with the use of the air pump 10, and the high-pressure air is ejected out through the demolding air hole 22, so that the resin lens can be ejected out, the damage of the mirror surface of the resin lens can be prevented, and the demolding is facilitated; and the ejection direction of the ejection holes 22 according to the present utility model is set toward the resin lens in the cavity 18.
In this embodiment, an injection molding pipe 24 is disposed on a side surface of the upper mold 4, and an injection molding runner is disposed in the upper mold 4 and at a position corresponding to the injection molding pipe 24.
In the present embodiment, injection molding is facilitated by providing the injection molding duct 24 and the injection molding runner, and injecting the resin injection molding material into the cavity 18.
In this embodiment, the bottom of the upper mold 4 is further provided with a positioning column 5, and the lower mold 6 is provided with a slot 17 adapted to the positioning column 5.
In the embodiment, the positioning column 5 and the slot 17 are arranged, so that the upper die 4 and the lower die 6 can be positioned and clamped conveniently.
In this embodiment, a water cooling pipe 25 is fixedly installed on the inner side of the cooling cover 7, the water cooling pipe 25 is wrapped on the outer side of the lower die 6 in a threaded manner, an input end of the water cooling pipe 25 is connected with an output end of the water tank 11 through a water pipe, and an output end of the water cooling pipe 25 is connected with an input end of the circulating pump 12 through a water pipe.
In this embodiment, through setting up water-cooling pipeline 25, the use of cooperation circulating pump 12 and water tank 11 can take away a large amount of heat of lower mould 6 for the resin lens can cool off rapidly and make the drawing of patterns more smooth, and then has reduced the refrigerated latency of moulding plastics, so as to accelerate the progress of drawing of patterns process.
In this embodiment, a heat conducting layer 26 is fixedly installed on the inner side of the cooling cover 7, and the heat conducting layer 26 is a metal layer or a graphite layer.
In this embodiment, the heat conducting layer 26 is further disposed on the inner side of the cooling cover 7, so as to conduct and disperse the heat of the lower die 6, thereby improving the cooling effect.
In this embodiment, the mounting bracket 13 is erect to water tank 11 top, fixed mounting has third pneumatic cylinder 14 on the mounting bracket 13, the output shaft of third pneumatic cylinder 14 has (mixing) shaft 15, inside the (mixing) shaft 15 stretches into water tank 11, fixed mounting has stirring vane 16 on the (mixing) shaft 15.
In this embodiment, the third hydraulic cylinder 14 is utilized to drive the stirring shaft 15 and the stirring blade 16 to rotate, so as to stir the water in the water tank 11, so that the water in the water tank 11 is mixed with the air, and the cooling efficiency of the circulating water is accelerated.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The foregoing is merely an embodiment of the present utility model, and a specific structure and characteristics of common knowledge in the art, which are well known in the scheme, are not described herein, so that a person of ordinary skill in the art knows all the prior art in the application date or before the priority date, can know all the prior art in the field, and has the capability of applying the conventional experimental means before the date, and a person of ordinary skill in the art can complete and implement the present embodiment in combination with his own capability in the light of the present utility model, and some typical known structures or known methods should not be an obstacle for a person of ordinary skill in the art to implement the present utility model. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present utility model, and these should also be considered as the scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the utility of the patent. The protection scope of the present utility model is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (6)
1. The utility model provides a from resin lens injection mold of ejecting drawing of patterns, its characterized in that, including workstation, fixed mounting in the support of workstation, fixed mounting in the first pneumatic cylinder on support top, fixed mounting in the last mould of first pneumatic cylinder output shaft, set up lower mould, pneumatic demoulding mechanism and cooling body under the last mould, lower mould fixed mounting is on the brace table, brace table fixed mounting is on the workstation, the die cavity has been seted up at the top of lower mould, and closes the die cavity after last mould and the lower mould compound die, the drawing of patterns chamber's bottom has been seted up a plurality of drawing of patterns chamber that runs through the lower mould bottom, pneumatic demoulding mechanism includes drawing of patterns rubber kicking block, second pneumatic cylinder, air pump, air duct and drawing of patterns gas pocket, second pneumatic cylinder fixed mounting is in the brace table, the output fixed mounting drawing of patterns rubber kicking block, the drawing of patterns rubber kicking block sets up in the die cavity, the drawing of patterns rubber kicking block is located the position that flushes with the die cavity bottom surface, the lateral wall of drawing of patterns chamber is equipped with the jet stack seat of built-in air storage cavity, be equipped with the air duct on the top of lower mould cavity, and the air pump, the air pump is equipped with a plurality of air duct sets up in the cooling body through the air pump, the air pump setting up in the cooling body through the output water tank and the cooling body, the cooling body sets up in the water tank through the cooling body, the water tank sets up in the output water tank through the cooling body, the water tank, the cooling body sets up the input end and the cooling body through the cooling body.
2. The self-ejecting and demolding resin lens injection mold according to claim 1, wherein an injection molding pipeline is arranged on the side face of the upper mold, and an injection molding runner is arranged in the upper mold and corresponds to the injection molding pipeline.
3. The self-ejecting and demolding resin lens injection mold as claimed in claim 1, wherein a positioning column is further arranged at the bottom of the upper mold, and a slot matched with the positioning column is arranged on the lower mold.
4. The self-ejection demolding resin lens injection mold according to claim 1, wherein a water-cooling pipeline is fixedly installed on the inner side of the cooling cover, the water-cooling pipeline is wrapped on the outer side of the lower mold in a threaded mode, the input end of the water-cooling pipeline is connected with the output end of the water tank through a water pipe, and the output end of the water-cooling pipeline is connected with the input end of the circulating pump through a water pipe.
5. The self-ejecting and demolding resin lens injection mold according to claim 4, wherein a heat conducting layer is fixedly installed on the inner side of the cooling cover, and the heat conducting layer is a metal layer or a graphite layer.
6. The self-ejection demolding resin lens injection mold according to claim 1, wherein a mounting frame is erected above the water tank, a third hydraulic cylinder is fixedly mounted on the mounting frame, an output shaft of the third hydraulic cylinder is connected with a stirring shaft, the stirring shaft stretches into the water tank, and stirring blades are fixedly mounted on the stirring shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320334060.1U CN219686387U (en) | 2023-02-28 | 2023-02-28 | Self-ejection demolding resin lens injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320334060.1U CN219686387U (en) | 2023-02-28 | 2023-02-28 | Self-ejection demolding resin lens injection mold |
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| Publication Number | Publication Date |
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| CN219686387U true CN219686387U (en) | 2023-09-15 |
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|---|---|---|---|
| CN202320334060.1U Active CN219686387U (en) | 2023-02-28 | 2023-02-28 | Self-ejection demolding resin lens injection mold |
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| CN (1) | CN219686387U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117416010A (en) * | 2023-10-25 | 2024-01-19 | 太仓意欣智能科技有限公司 | Injection mold for molding plastic parts in household appliances |
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2023
- 2023-02-28 CN CN202320334060.1U patent/CN219686387U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117416010A (en) * | 2023-10-25 | 2024-01-19 | 太仓意欣智能科技有限公司 | Injection mold for molding plastic parts in household appliances |
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