CN214726042U - Optical lens injection mold without water gap - Google Patents
Optical lens injection mold without water gap Download PDFInfo
- Publication number
- CN214726042U CN214726042U CN202120189510.3U CN202120189510U CN214726042U CN 214726042 U CN214726042 U CN 214726042U CN 202120189510 U CN202120189510 U CN 202120189510U CN 214726042 U CN214726042 U CN 214726042U
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- Prior art keywords
- lifting
- plate
- cavity
- optical lens
- groove
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- 230000003287 optical effect Effects 0.000 title claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 238000002347 injection Methods 0.000 title claims abstract description 25
- 239000007924 injection Substances 0.000 title claims abstract description 25
- 238000003825 pressing Methods 0.000 claims abstract description 11
- 238000001746 injection moulding Methods 0.000 claims description 30
- 239000004033 plastic Substances 0.000 abstract description 28
- 229920003023 plastic Polymers 0.000 abstract description 28
- 238000005056 compaction Methods 0.000 abstract description 4
- 238000002844 melting Methods 0.000 abstract description 4
- 230000008018 melting Effects 0.000 abstract description 4
- 238000000465 moulding Methods 0.000 description 10
- 230000007547 defect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000001174 ascending effect Effects 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 230000003028 elevating effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 2
- 239000002991 molded plastic Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model provides an injection mold for optical lenses without a water gap, which comprises an upper liner plate, an upper template, a lower template, a first lower die holder, a second lower die holder and a lower liner plate, wherein the upper template is provided with a compaction groove with an inverted V-shaped groove bottom, and an injection main runner is connected with the compaction groove; a shunting lifting hole is formed in the lower die plate, a female die lifting hole is connected to each of two sides of the shunting lifting hole, a first lifting plate is connected to the first lower die holder in a sliding mode, and a second lifting plate is connected to the second lower die holder in a sliding mode; two concave die cores are fixed on the first lifting plate, and a first spring is connected between the first lifting plate and the lower template; the second lifting plate is fixed with a lifting column, a first flow guide block is integrally formed on the lifting column, and the top surface of the first flow guide block is matched with the bottom of the pressing groove. The utility model discloses can be effectively with melting plastic water conservancy diversion to cavity benevolence on, after accomplishing to mould plastics, the lift post rises to first water conservancy diversion piece and supports in compressing tightly the groove, can not form the mouth of a river piece between the optical lens piece, the quality is reliable.
Description
Technical Field
The utility model relates to an injection mold specifically discloses a no mouth of a river's optical lens piece injection mold.
Background
The mold is a tool for realizing molded articles in industrial production, the injection mold is a tool for producing plastic products and also a tool for endowing the plastic products with complete structures and accurate sizes, and specifically, the heated and melted plastic is injected into a mold cavity at high pressure by an injection molding machine, and a molded plastic part is obtained after cooling and solidification.
In order to improve the preparation efficiency of injection mold, more than one injection molding cavity is usually arranged in the injection mold, the cavities are connected through an injection molding runner, in the molding process, a water gap part can be formed after the molten plastic in the injection molding runner is cooled and solidified, after molding and material removal, the water gap part needs to be cut to obtain an independent plastic part, but the cutting is likely to cause non-negligible defects to the plastic parts with high surface precision requirements such as optical lenses and the like, and the performance of the optical lenses is influenced.
SUMMERY OF THE UTILITY MODEL
Accordingly, there is a need to provide an injection mold for optical lenses without a water gap, which prevents the formation of a water gap between the injection molded optical lenses and ensures the injection molding quality.
In order to solve the prior art problem, the utility model discloses an injection mold for optical lenses without a water gap, which comprises an upper liner plate, an upper template, a lower template, a first lower die holder, a second lower die holder and a lower liner plate which are arranged in sequence from top to bottom, wherein an injection main runner is arranged in the upper template, a compaction groove with an inverted V-shaped groove bottom is arranged at the bottom of the upper template, and the bottom end of the injection main runner is connected with the center of the groove bottom of the compaction groove;
a split-flow lifting hole is formed in the lower template and located right below the injection molding main runner, female die lifting holes are connected to two opposite sides of the split-flow lifting hole, a first lifting cavity is formed in the first lower die holder, a second lifting cavity is formed in the second lower die holder, the length of the first lifting cavity is larger than that of the second lifting cavity, a first lifting plate is connected to the first lifting cavity in a sliding mode, and a second lifting plate is connected to the second lifting cavity in a sliding mode;
two cavity inserts are fixed on the first lifting plate, the cavity inserts are connected in the cavity lifting holes in a sliding manner, a first spring is connected between the first lifting plate and the lower template, and the first lifting plate is provided with a abdicating hole;
the second lifting plate is fixedly provided with a lifting column, the lifting column is connected in the shunt lifting hole in a sliding mode, the lifting column is integrally formed with a first flow guide block, the top of the first flow guide block is of an inverted V-shaped structure, the top surface of the first flow guide block is matched with the bottom of the pressing groove, and the lifting column is connected in the yielding hole in a sliding mode.
Furthermore, two convex modules which are respectively positioned above the two concave die lifting holes are fixed at the bottom of the upper template.
Furthermore, a guide pillar is fixed at the bottom of the upper template, a guide groove is formed in the top of the lower template, and the guide pillar is connected in the guide groove in a sliding mode.
Furthermore, a second flow guide block is fixed on the first flow guide block, the top of the second flow guide block is of an inverted V-shaped structure, and the included angle of the top of the second flow guide block is smaller than that of the first flow guide block.
Furthermore, a limiting hole is formed in the lower base plate, a limiting block is fixed at the bottom of the second lifting plate, and the limiting block is connected in the limiting hole in a sliding mode.
Furthermore, a second spring is connected between the second lifting plate and the lower backing plate.
The utility model has the advantages that: the utility model discloses an optical lens piece injection mold of no water gap, at the in-process of moulding plastics, first water conservancy diversion piece can be effectively with melting plastic water conservancy diversion to the downthehole cavity benevolence of die lift, after accomplishing to mould plastics, the lift post rises to making first water conservancy diversion piece support in compressing tightly the groove, thereby effectively eliminate the intercommunication between two die lift holes, can not form water gap spare between the optical lens piece after injection moulding, the optical lens piece that the shaping obtained after breaking away from need not to cut processing, injection moulding's quality is reliable, and the V font structure of falling at first water conservancy diversion piece top can effectively arrange the melting plastic on it to the greatest extent, thereby avoid the melting plastic to remain on first water conservancy diversion piece and influence the shaping quality.
Drawings
Fig. 1 is a schematic structural view of the mold closing and injection molding device of the present invention.
Fig. 2 is a schematic structural view during molding of the present invention.
Fig. 3 is a schematic structural view of the mold opening and discharging of the present invention.
Fig. 4 is a schematic structural view of the middle and lower templates of the present invention.
The reference signs are: the injection molding device comprises an upper base plate 10, an upper die plate 20, an injection molding main runner 21, a pressing groove 22, a male die block 23, a guide pillar 24, a lower die plate 30, a split lifting hole 31, a female die lifting hole 32, a guide groove 33, a first lower die holder 40, a first lifting cavity 41, a second lower die holder 50, a second lifting cavity 51, a lower base plate 60, a limiting hole 61, a first lifting plate 70, a female die core 71, a first spring 72, a abdicating hole 73, a second lifting plate 80, a lifting pillar 81, a first guide block 82, a second guide block 83, a limiting block 84 and a second spring 85.
Detailed Description
For further understanding of the features and technical means of the present invention, as well as the specific objects and functions attained by the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description.
Refer to fig. 1 to 4.
The embodiment of the utility model discloses no water gap optical lens injection mold, include from last upper padding plate 10, cope match-plate pattern 20, lower bolster 30, first die holder 40, second die holder 50 and the lower bolster 60 that sets gradually down, be equipped with the mainstream way 21 of moulding plastics in the cope match-plate pattern 20, the bottom of cope match-plate pattern 20 is equipped with the hold-down tank 22 that the tank bottom is the font of falling V, the opening of hold-down tank 22 is downward, the tank bottom of hold-down tank 22 is by two inclined planes that incline to both sides below from the centre, the tank bottom center of hold-down tank 22 is connected to the bottom of the mainstream way 21 of moulding plastics, the center of the tank bottom of hold-down tank 22 is run through to the bottom of the mainstream way 21 of moulding plastics promptly;
the lower template 30 is provided with a shunt lifting hole 31 positioned right below the injection molding main runner 21, two opposite sides of the shunt lifting hole 31 are connected with a female die lifting hole 32, the bottom of the pressing groove 22 is respectively connected with two female die lifting holes 32 in an inclined manner, the first lower die holder 40 is provided with a first lifting cavity 41, the first lifting cavity 41 penetrates through the front and back surfaces and the upper and lower surfaces of the first lower die holder 40, the second lower die holder 50 is provided with a second lifting cavity 51, the second lifting cavity 51 penetrates through the front and back surfaces and the upper and lower surfaces of the second lower die holder 50, the length of the first lifting cavity 41 is larger than that of the second lifting cavity 51, the length refers to the left and right span dimension in the drawing, namely the length refers to the span dimension in the direction between the centers of the two female die lifting holes 32, the first lifting cavity 41 is slidably connected with a first lifting plate 70 with the length matched with the first lifting plate, the second lifting plate 80 with the length matched with the second lifting cavity 51 is slidably connected with the first lifting plate, the first lifting plate 70 can be supported on the second lower die holder 50, but the first lifting plate 70 cannot fall into the second lifting cavity 51, so that the concave die core 71 can be effectively ensured to be positioned at the set height of the concave die lifting hole 32 during die assembly, and the reliability of injection molding is effectively improved;
two concave die cores 71 are fixed on the first lifting plate 70, the top of each concave die core 71 is provided with a concave structure surface as the bottom of a forming cavity, the two concave die cores 71 are respectively connected in the two concave die lifting holes 32 in a sliding manner, a first spring 72 is connected between the first lifting plate 70 and the lower template 30, and a yielding hole 73 is formed in the first lifting plate 70;
the second lifting plate 80 is fixed with a lifting column 81, the lifting column 81 is slidably connected in the shunt lifting hole 31, the lifting column 81 is integrally formed with a first flow guide block 82, the top of the first flow guide block 82 is of an inverted V-shaped structure, namely, the top surface of the first flow guide block 82 is two inclined surfaces which incline from the middle to the lower parts of two sides, the top surface of the first flow guide block 82 is matched with the bottom of the pressing groove 22, namely, the two inclined surfaces at the top of the first flow guide block 82 are respectively parallel to the two inclined surfaces at the bottom of the pressing groove 22, the first flow guide block 82 can be pressed and attached in the pressing groove 22, the lifting column 81 is slidably connected in the abdicating hole 73, and the lifting column 81 can pass through the abdicating hole 73 to realize lifting.
The utility model discloses generally be used for making optical lens, when the compound die is moulded plastics, as shown in fig. 1, cope match-plate pattern 20 hugs closely on lower bolster 30, under the effect of first spring 72, first lifter plate 70 is located the bottom of first lift chamber 41 and bears on second die holder 50, die kernel 71 cooperates the pore wall of die lift hole 32 and the bottom surface of cope match-plate pattern 20 to form the injection molding die cavity, the lateral wall that the top surface cooperation reposition of redundant personnel lift hole 31 of first water conservancy diversion piece 82 forms the branch runner of moulding plastics that communicates with two injection molding cavities, molten plastic pours into the branch runner of moulding plastics into from the sprue runner 21 of moulding plastics, because the structure of the inverted V font at first water conservancy diversion piece 82 top, molten plastic can enter into two injection molding cavities rapidly; after the injection molding is finished, when the optical lens is molded, as shown in fig. 2, an external lifting mechanism drives the second lifting plate 80 to ascend, and the first flow guide block 82 can effectively guide the molten plastic in the injection molding sub-runner to the two injection molding cavities in the ascending process until the top surface of the first flow guide block 82 is tightly attached to the bottom of the pressing groove 22, so that the injection molding sub-runner and the molten plastic therein can be effectively eliminated, the molten plastic in the injection molding cavities can be pressurized and shaped, and the quality of the finally obtained optical lens can be effectively improved; after the molten plastic in the injection molding cavity is cooled and formed, when the mold is opened for material removal, as shown in fig. 3, an external lifting mechanism drives the second lifting plate 80 to ascend in one step, the second lifting plate 80 pushes the first lifting plate 70 to ascend, the cavity insert 71 ascends along the cavity lifting hole 32 and pushes the formed optical lens away from the abdicating hole 73 of the lower template 30, so that reliable material removal is completed, the surface of the optical lens can be effectively prevented from forming defects because the concave structure surface of the cavity insert 71 is matched with the complete surface of one side of the optical lens, in addition, because an injection molding runner does not exist between the two injection molding cavities during forming, a water gap does not need to be formed between the two optical lenses, cutting is not needed, the defect caused by cutting of the finally obtained optical lens surface is effectively avoided, and the quality of the optical lens can be effectively improved.
In this embodiment, two male mold blocks 23 respectively located above the two female mold lifting holes 32 are fixed to the bottom of the upper mold plate 20, and when the mold is closed, the male mold blocks 23 can cooperate with the top surface of the female mold core 71 and the side walls of the female mold lifting holes 32 to form an injection mold cavity having a specific shape.
In this embodiment, the guide posts 24 are fixed at the bottom of the upper mold plate 20, the guide slots 33 are formed at the top of the lower mold plate 30, and the guide posts 24 are slidably connected in the guide slots 33, preferably, two guide slots 33 and two guide posts 24 are provided, so that the stability of the mold opening and closing action of the injection mold can be effectively improved through the guide slots 33 and the guide posts 24.
In this embodiment, the first guiding block 82 is fixed with a second guiding block 83, the second guiding block 83 can be inserted into the injection molding main runner 21, the top of the second guiding block 83 is an inverted V-shaped structure, that is, the top surface of the second guiding block 83 is two inclined surfaces inclined from the middle to the lower parts of the two sides, the included angle of the top of the second guiding block 83 is smaller than that of the first guiding block 82, namely, the included angle between the two inclined planes at the top of the second deflector block 83 is smaller than the included angle between the two inclined planes at the top of the first deflector block 82, in the ascending process of the ascending and descending column 81, the efficiency of the molten plastic flowing into the two injection molding cavities can be further improved, after the top surface of the first guiding block 82 clings to the pressing groove 22, the molten plastic can be effectively prevented from remaining in the injection main runner 21, therefore, the defects that the liquidity of the main flow channel is influenced after the molten plastic is molded and air holes are formed in the optical lens obtained after the injection molding cavity is molded due to insufficient shaping pressure or insufficient material can be avoided.
In this embodiment, the lower cushion plate 60 is provided with a limiting hole 61, the bottom of the second lifting plate 80 is fixed with a limiting block 84, and the limiting block 84 is slidably connected to the limiting hole 61, so that the reliability of the lifting motion of the second lifting plate 80 can be effectively improved.
In the present embodiment, the second spring 85 is connected between the second elevating plate 80 and the lower pad plate 60, so that the stability of the elevating operation of the second elevating plate 80 can be further improved.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (6)
1. The injection mold for the optical lens without the water gap is characterized by comprising an upper base plate (10), an upper template (20), a lower template (30), a first lower die holder (40), a second lower die holder (50) and a lower base plate (60) which are sequentially arranged from top to bottom, wherein an injection molding main runner (21) is arranged in the upper template (20), a pressing groove (22) with the groove bottom in an inverted V shape is formed in the bottom of the upper template (20), and the bottom end of the injection molding main runner (21) is connected with the center of the groove bottom of the pressing groove (22);
a flow dividing lifting hole (31) which is located right below the injection molding main flow channel (21) is formed in the lower template (30), female die lifting holes (32) are connected to two opposite sides of the flow dividing lifting hole (31), a first lifting cavity (41) is formed in the first lower die holder (40), a second lifting cavity (51) is formed in the second lower die holder (50), the length of the first lifting cavity (41) is larger than that of the second lifting cavity (51), a first lifting plate (70) is connected in the first lifting cavity (41) in a sliding mode, and a second lifting plate (80) is connected in the second lifting cavity (51) in a sliding mode;
two cavity inserts (71) are fixed on the first lifting plate (70), the cavity inserts (71) are connected in the cavity lifting holes (32) in a sliding manner, a first spring (72) is connected between the first lifting plate (70) and the lower template (30), and abdicating holes (73) are formed in the first lifting plate (70);
be fixed with lift post (81) on second lifter plate (80), lift post (81) sliding connection in reposition of redundant personnel lift hole (31), integrated into one piece has first water conservancy diversion piece (82) on lift post (81), the top of first water conservancy diversion piece (82) is the font structure of falling V, the top surface of first water conservancy diversion piece (82) with the tank bottom that compresses tightly groove (22) matches, lift post (81) sliding connection in the hole of stepping down (73).
2. The optical lens injection mold without water gap according to claim 1, characterized in that two male mold blocks (23) respectively located above two female mold lifting holes (32) are fixed at the bottom of the upper mold plate (20).
3. The non-nozzle optical lens injection mold according to claim 1, wherein the bottom of the upper mold plate (20) is fixed with a guide pillar (24), the top of the lower mold plate (30) is provided with a guide groove (33), and the guide pillar (24) is slidably connected in the guide groove (33).
4. The injection mold for optical lens without water gap according to claim 1, wherein a second flow guiding block (83) is fixed on the first flow guiding block (82), the top of the second flow guiding block (83) is an inverted V-shaped structure, and the included angle of the top of the second flow guiding block (83) is smaller than the included angle of the top of the first flow guiding block (82).
5. The injection mold for optical lens without water gap according to claim 1, wherein the lower pad (60) has a limiting hole (61), a limiting block (84) is fixed at the bottom of the second lifting plate (80), and the limiting block (84) is slidably connected in the limiting hole (61).
6. The non-nozzle optical lens injection mold according to claim 1, wherein a second spring (85) is connected between the second lifting plate (80) and the lower backing plate (60).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120189510.3U CN214726042U (en) | 2021-01-22 | 2021-01-22 | Optical lens injection mold without water gap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120189510.3U CN214726042U (en) | 2021-01-22 | 2021-01-22 | Optical lens injection mold without water gap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214726042U true CN214726042U (en) | 2021-11-16 |
Family
ID=78640930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120189510.3U Expired - Fee Related CN214726042U (en) | 2021-01-22 | 2021-01-22 | Optical lens injection mold without water gap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214726042U (en) |
-
2021
- 2021-01-22 CN CN202120189510.3U patent/CN214726042U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211116 |
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| CF01 | Termination of patent right due to non-payment of annual fee |