CN215095365U - Optical lens mould with mould core ejection structure - Google Patents
Optical lens mould with mould core ejection structure Download PDFInfo
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- CN215095365U CN215095365U CN202023350376.5U CN202023350376U CN215095365U CN 215095365 U CN215095365 U CN 215095365U CN 202023350376 U CN202023350376 U CN 202023350376U CN 215095365 U CN215095365 U CN 215095365U
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Abstract
The utility model relates to the technical field of molds, in particular to an optical lens mold with a mold core ejecting structure, which comprises a fixed plate, a mold foot plate and a mold plate; a cavity is arranged in the shaping plate; a movable cavity is arranged between the mould foot plate and the mould plate; the movable cavity is movably provided with an ejection mechanism; the ejection mechanism comprises an ejection plate, an ejection assembly arranged on the ejection plate and a driving assembly used for driving the ejection plate to lift; a forming lining is arranged at the top of the cavity; the ejection assembly comprises a mold core movably arranged in the mold cavity; the forming bush is provided with a through hole for the mold core to pass through; the mold core is arranged on the ejector plate. The utility model discloses a set up guiding mechanism and canceling release mechanical system simultaneously for the liftout plate can be ejecting steadily and reset steadily, and overall structure helps the ejecting high accuracy and the repeated return of the ejecting plate of mould benevolence, and then the effective eccentric precision of mould benevolence obtains guaranteeing and mould stability has the guarantee.
Description
Technical Field
The utility model relates to the technical field of mold, concretely relates to optical lens piece mould with ejecting structure of mould benevolence.
Background
With the rapid coming of the 5G era, the demand for the camera lens loaded in the automobile intelligence industry and the electronic industry such as smart phones, security systems and vehicle-mounted industries is continuously increased, so that the development of the optical lens manufacturing industry is driven, the demand for the optical lens is continuously increased, and how to improve the productivity and quality of the optical lens becomes an important problem to be solved urgently.
The eccentricity requirement on the lens of the current optical mold is higher and higher, the eccentricity of the lens of the mobile phone is poor, so that the whole lens module is scrapped, the eccentricity problem of the lens is always a pain point in the industry, the eccentricity of the lens is scrapped due to the fact that the lens is eccentric under the following conditions, the processing precision is insufficient, the assembling capability is insufficient, the actuation in the molding process of the mold is unstable, and the like, so that the balance and smooth ejection of the lens in the injection molding process are key problems in the injection molding production process.
The ejector mechanism of a common mold is ejector pin ejection, but considering the micro deformation problem of a lens, the mold core ejection is used as much as possible, so that the stress is more uniform, the lens cannot cause other adverse phenomena due to ejection, but the mold core ejection eccentricity problem always puzzles the industry, and for the eccentricity of the high-order optical lens, a novel mold core ejection mechanism is urgently needed to solve the eccentricity problem.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the above-mentioned among the prior art not enough, provide an optical lens piece mould with ejecting structure of mould benevolence.
The purpose of the utility model is realized through the following technical scheme: an optical lens mould with a mould core ejection structure comprises a fixed plate, a mould foot plate arranged at the top of the fixed plate and a mould plate arranged at the top of the mould foot plate; a cavity is arranged in the shaping plate;
a movable cavity is arranged between the mould foot plate and the mould plate; the movable cavity is movably provided with an ejection mechanism; the ejection mechanism is used for ejecting the formed product out of the cavity; the ejection mechanism comprises an ejection plate, an ejection assembly arranged on the ejection plate and a driving assembly used for driving the ejection plate to lift;
a forming lining is arranged at the top of the cavity; the ejection assembly comprises a mold core movably arranged in the mold cavity; the forming bush is provided with a through hole for the mold core to pass through; the mold core is arranged on the ejector plate.
A guide mechanism is arranged between the shaping plate and the ejector plate; and a reset mechanism is arranged between the ejection plate and the die foot plate.
The utility model is further arranged that the guiding mechanism comprises a plurality of guiding bushings arranged in the shaping plate, ball guide sleeves sleeved in the guiding bushings and linear rods movably sleeved in the ball guide sleeves; the linear rod is connected with the ejector plate.
The utility model is further arranged that the reset mechanism comprises a plurality of reset grooves arranged on the die foot plate, reset springs arranged in the reset grooves and equal-height screws fixed at the bottom of the ejector plate; each equal-height screw is arranged in one reset groove; the reset spring is arranged between the equal-height screw and the reset groove; the equal-height screws are movably arranged in the reset grooves.
The utility model discloses further set up to, be equipped with the gasket between mould benevolence and the liftout plate.
The utility model is further provided with that the driving component comprises a linear bearing arranged on the die foot plate, an ejector rod movably sleeved in the linear bearing and an ejector insert movably arranged on the fixed plate; one end of the ejector rod is connected with the ejector plate; the other end of the ejector rod is connected with the ejector insert.
The utility model is further arranged that one end of the ejector rod is arranged at the center of the bottom of the ejector plate;
a cup head screw is arranged between the other end of the ejection rod and the ejection insert.
The utility model is further provided with a mould foot insert block arranged on the mould foot plate; the movable cavity consists of a mould foot plate, a mould foot insert and a shaping plate; the template is arranged on the top of the die leg insert and the die leg plate.
The utility model is further arranged that a supporting head is arranged in the movable cavity; the supporting head is arranged between the template foot plate and the template; the ejecting plate is sleeved outside the supporting head.
The utility model is further arranged that the number of the guide bush, the ball guide sleeve and the linear rod is four; the four guide bushings are arranged on the periphery of the template at equal intervals; the four linear rods are arranged around the top of the ejector plate at equal intervals.
The utility model is further provided that the equal-height screw comprises a head part and a rod part connected with the head part; the rod part is fixedly connected with the ejector plate; the reset spring is arranged between the head and the inner wall of the reset groove.
The utility model has the advantages that: the utility model discloses a set up guiding mechanism and canceling release mechanical system simultaneously for the liftout plate can be ejecting steadily and reset steadily, and overall structure helps the ejecting high accuracy and the repeated return of the ejecting plate of mould benevolence, and then the effective eccentric precision of mould benevolence obtains guaranteeing and mould stability has the guarantee.
Drawings
The invention is further described with the aid of the accompanying drawings, in which, however, the embodiments do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be derived from the following drawings without inventive effort.
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a cross-sectional view of the ejector plate of the present invention in its rest position;
fig. 3 is a cross-sectional view of the ejector plate of the present invention during ejection;
wherein: 1. a fixing plate; 2. a mold base plate; 21. a reset groove; 22. a return spring; 23. a molding leg insert; 3. a template; 31. a cavity; 4. a movable cavity; 5. ejecting the plate; 51. an equal-height screw; 52. a head portion; 53. a rod portion; 61. forming a lining; 62. a mold core; 63. a gasket; 71. a linear bearing; 72. ejecting the rod; 73. ejecting the insert; 74. a cup head screw; 8. supporting a head; 91. a guide bush; 92. a ball guide sleeve; 93. a linear rod.
Detailed Description
The invention will be further described with reference to the following examples.
As shown in fig. 1 to 3, the optical lens mold with the mold core ejecting structure according to the embodiment includes a fixing plate 1, a mold base plate 2 disposed on the top of the fixing plate 1, and a mold plate 3 disposed on the top of the mold base plate 2; a cavity 31 is arranged in the shaping plate 3;
a movable cavity 4 is arranged between the mould foot plate 2 and the mould plate 3; an ejection mechanism is movably arranged in the movable cavity 4; the ejection mechanism is used for ejecting the formed product from the cavity 31; the ejection mechanism comprises an ejection plate 5, an ejection assembly arranged on the ejection plate 5 and a driving assembly used for driving the ejection plate 5 to lift;
a forming bush 61 is arranged at the top of the cavity 31; the ejection assembly comprises a mold core 62 movably arranged in the mold cavity 31; the forming bush 61 is provided with a through hole for the mold core 62 to pass through; the mold core 62 is disposed on the ejector plate 5.
A guide mechanism is arranged between the shaping plate 3 and the ejector plate 5; and a reset mechanism is arranged between the ejector plate 5 and the die foot plate 2.
Specifically, the optical lens mold according to the present embodiment is a movable mold, and after being clamped with a fixed mold, injection molding of the optical lens can be performed in the molding bush 61 of the cavity 31; after injection molding is completed, the movable side mold and the fixed side mold are separated, then when the mold is ejected, the ejector plate 5 moves upwards under the driving assembly when the mold is ejected, when the ejector plate 5 impacts the template 3, the ejector plate 5 does not move any more, and at the moment, the mold core 62 completely ejects a molded product on the molding bush 61, so that balance and smooth ejection of a lens at a demolding stage can be realized, the problem of ejection traces of a traditional ejector pin on the surface of a product can not be left, and the requirement of an optical lens on eccentric high precision is met; in addition, the guide mechanism and the reset mechanism are arranged simultaneously in the embodiment, so that the ejector plate 5 can be ejected out stably and reset stably, the whole structure is beneficial to the ejection of the mold core 62 and the high precision and repeated resetting of the ejector plate 5, and further the effective eccentric precision of the mold core 62 is ensured and the stability of the mold is guaranteed.
In the optical lens mold with the mold core ejecting structure according to this embodiment, the guiding mechanism includes a plurality of guiding bushings 91 disposed in the mold plate 3, a ball guide sleeve 92 sleeved in the guiding bushings 91, and a linear rod 93 movably sleeved in the ball guide sleeve 92; the linear rod 93 is connected to the ejector plate 5. Specifically, since the knock-out plate 5 completely penetrates the linear rod 93 and is positioned by the ball guide sleeve 92 and the guide bush 91, the knock-out plate 5 can stably move in the ascending and descending processes, so that the eccentric phenomenon can be prevented from occurring at the time of the knock-out, and the ball guide sleeve 92 can reduce the abrasion of the linear rod 93.
In the optical lens mold with the mold core ejection structure according to this embodiment, the reset mechanism includes a plurality of reset grooves 21 formed in the mold base plate 2, a reset spring 22 disposed in the reset grooves 21, and an equal-height screw 51 fixed to the bottom of the ejection plate 5; each equal-height screw 51 is respectively arranged in one reset groove 21; the reset spring 22 is arranged between the equal-height screw 51 and the reset groove 21; the equal-height screw 51 is movably arranged in the reset groove 21.
Since the present embodiment is provided with a plurality of equal-height screws 51, the equal-height screws 51 are all the same, and the reset groove 21 is provided on the mold leg plate 2, so that the mold is stable in structure, and the ejector plate 5 can be smoothly and smoothly reset.
Considering the micro-deformation problem of the lens and the mold core 62 ejection structure meeting the requirement of the lens eccentricity accuracy, the mold structure is arranged in the embodiment, the mold structure occupies a smaller space for manufacturing and is flexible to use, and the problems that the mold core 62 on the movable side is inclined to cause demolding and large eccentricity on the lens aspheric surface due to unstable self-bearing of the ejection plate 5 caused by the influence of gravity and other reasons on the injection molding machine are greatly solved.
In the embodiment, the reset spring 22 is arranged after the equal-height screw 51 of the ejector plate 5 passes through the die base plate 2, so that the reset spring 22 can return smoothly after being ejected, the integral structure is beneficial to the ejection of the die core 62 and the repeated return of the ejector plate, and further the effective eccentric precision of the die core 62 and the stability of the die are guaranteed. The structure changes the mode of the return spring 22 and the positioning mode of the ejector plate 5 on the basis of the original traditional ejection structure of the mold core 62; and the ejector plate 5 has a stroke limiting space effect different from the common structure. In the embodiment, when the ejector plate 5 is ejected out of the mold, the ejector plate 5 is moved forward by the ejector rod 72, when the ejector plate 5 impacts the mold plate 3, the ejector plate 5 does not move any more, but the movable side mold core 62 is completely separated from the product, so that the movable side mold core 62 is ejected out, the lens can be ejected smoothly and stably in the demolding stage, the problem of ejection traces of the traditional ejector pin on the surface of the product can be solved, and the requirement of the optical lens on the eccentric high precision is met.
After the mold is opened, the ejector rod 72 and the ejector insert 73 move upwards by 5.0mm when the ejector rod of the injection molding machine is ejected, the linear bearing 71 on the mold foot plate 2 simultaneously ensures the verticality of the ejector rod 72 when the ejector rod is ejected when the mold foot plate moves, the ejector plate 5 moves upwards, the movement is stopped when the ejector plate contacts the bottom of the movable side template 3, the ejector plate 5 enables the mold core 62 to be ejected together through the gasket 63, so that the eccentric precision of the mold core 62 is easily ensured, the reset spring 22 on the equal-height screw 51 is in a compression state at the moment, and the linear rod 93 is easy to wear during reciprocating motion, so after the ball guide sleeve 92 structure is designed to ensure good precision, after a product is taken out, the mold core 62 on the ejector plate 5 is stably reset again in high precision by the reset spring 22 after the ejector rod of the injection molding machine is loosened, and the eccentric precision difference of the mold core 62 is prevented.
In the optical lens mold with the mold core ejecting structure according to this embodiment, a gasket 63 is disposed between the mold core 62 and the ejecting plate 5. The gasket 63 is arranged to facilitate the disassembly and assembly of the mold core 62 and the ejector plate 5, so that the mold cores 62 with different sizes can be replaced.
In the optical lens mold with the mold core ejecting structure according to this embodiment, the driving assembly includes a linear bearing 71 disposed on the mold base plate 2, an ejecting rod 72 movably sleeved in the linear bearing 71, and an ejecting insert 73 movably disposed on the fixing plate 1; one end of the ejector rod 72 is connected with the ejector plate 5; the other end of the ejector rod 72 is connected with an ejector insert 73. Specifically, when the ejector plate 5 needs to be raised, the outer ejector pins of the injection molding machine abut against the ejector inserts 73, so that the ejector plate 5 is driven to move upward by the ejector rods 72.
In the optical lens mold with the mold core ejecting structure according to this embodiment, the one end of the ejector rod 72 is disposed at the center of the bottom of the ejector plate 5; the knock-out plate 5 can be smoothly raised by the above arrangement.
A cup head screw 74 is arranged between the other end of the ejection rod 72 and the ejection insert 73. The ejector rod 72 and the ejector insert 73 can be conveniently detached through the arrangement.
In the optical lens mold with the mold core ejection structure according to this embodiment, the mold base plate 2 is provided with a mold base insert 23; the movable cavity 4 consists of a mould foot plate 2, a mould foot insert 23 and a shaping plate 3; the template 3 is arranged on the top of the mould foot insert 23 and the mould foot plate 2. The structure of the die is stable and reliable through the arrangement.
In the optical lens mold with the mold core ejection structure according to this embodiment, the movable cavity 4 is provided with a supporting head 8; the supporting head 8 is arranged between the mould foot plate 2 and the mould plate 3; the ejector plate 5 is sleeved outside the supporting head 8. Through the arrangement, the supporting force between the die foot plate 2 and the template 3 can be ensured, so that the structure of the die is more stable and reliable.
In the optical lens mold with the mold core ejection structure according to this embodiment, the number of the guide bush 91, the number of the ball guide sleeve 92, and the number of the linear rods 93 are four; the four guide bushings 91 are arranged around the template 3 at equal intervals; the four linear rods 93 are arranged around the top of the ejector plate 5 at equal intervals. Specifically, in the present embodiment, by providing the four guide bushes 91, the ball guide 92, and the linear rod 93, the stability of the movement of the knock-out plate 5 can be further improved, thereby further preventing the occurrence of the eccentricity phenomenon.
In the optical lens mold with the mold core ejecting structure according to this embodiment, the equal-height screw 51 includes a head 52 and a rod 53 connected to the head 52; the rod part 53 is fixedly connected with the ejector plate 5; the return spring 22 is provided between the head 52 and the inner wall of the return groove 21. Through the arrangement, the ejector plate 5 and the die core 62 can be effectively and stably reset.
In the optical lens mold with the mold core ejecting structure according to this embodiment, the equal-height screws 51 are equally spaced and uniformly disposed on the periphery of the bottom of the ejector plate 5, so that the ejector plate 5 can further stably reset.
It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. The utility model provides an optical lens mould with ejecting structure of mould benevolence which characterized in that: comprises a fixed plate (1), a mold foot plate (2) arranged at the top of the fixed plate (1) and a template (3) arranged at the top of the mold foot plate (2); a cavity (31) is arranged in the shaping plate (3);
a movable cavity (4) is arranged between the mould foot plate (2) and the mould plate (3); an ejection mechanism is movably arranged in the movable cavity (4); the ejection mechanism is used for ejecting the formed product from the cavity (31); the ejection mechanism comprises an ejection plate (5), an ejection assembly arranged on the ejection plate (5) and a driving assembly used for driving the ejection plate (5) to lift;
a forming bushing (61) is arranged at the top of the cavity (31); the ejection assembly comprises a mold core (62) movably arranged in the mold cavity (31); the forming bush (61) is provided with a through hole for the die core (62) to pass through; the die core (62) is arranged on the ejector plate (5);
a guide mechanism is arranged between the shaping plate (3) and the ejector plate (5); and a reset mechanism is arranged between the ejector plate (5) and the die foot plate (2).
2. The optical lens mold with the mold core ejecting structure as claimed in claim 1, wherein: the guide mechanism comprises a plurality of guide bushings (91) arranged in the shaping plate (3), a ball guide sleeve (92) sleeved in the guide bushings (91) and a linear rod (93) movably sleeved in the ball guide sleeve (92); the linear rod (93) is connected with the ejector plate (5).
3. The optical lens mold with the mold core ejecting structure as claimed in claim 1, wherein: the reset mechanism comprises a plurality of reset grooves (21) arranged on the die foot plates (2), reset springs (22) arranged in the reset grooves (21) and equal-height screws (51) fixed at the bottoms of the ejector plates (5); each equal-height screw (51) is respectively arranged in one reset groove (21); the reset spring (22) is arranged between the equal-height screw (51) and the reset groove (21); the equal-height screw (51) is movably arranged in the reset groove (21).
4. The optical lens mold with the mold core ejecting structure as claimed in claim 1, wherein: a gasket (63) is arranged between the die core (62) and the ejector plate (5).
5. The optical lens mold with the mold core ejecting structure as claimed in claim 1, wherein: the driving assembly comprises a linear bearing (71) arranged on the die foot plate (2), an ejection rod (72) movably sleeved in the linear bearing (71) and an ejection insert (73) movably arranged on the fixed plate (1); one end of the ejector rod (72) is connected with the ejector plate (5); the other end of the ejector rod (72) is connected with an ejector insert (73).
6. The optical lens mold with the mold core ejecting structure as claimed in claim 5, wherein: one end of the ejector rod (72) is arranged at the center of the bottom of the ejector plate (5);
a cup head screw (74) is arranged between the other end of the ejection rod (72) and the ejection insert (73).
7. The optical lens mold with the mold core ejecting structure as claimed in claim 1, wherein: a mould foot insert (23) is arranged on the mould foot plate (2); the movable cavity (4) consists of a mould foot plate (2), a mould foot insert (23) and a shaping plate (3); the shaping plate (3) is arranged on the top of the mould foot insert (23) and the top of the mould foot plate (2).
8. The optical lens mold with the mold core ejecting structure as claimed in claim 1, wherein: a supporting head (8) is arranged in the movable cavity (4); the supporting head (8) is arranged between the mould foot plate (2) and the mould plate (3); the ejector plate (5) is sleeved outside the supporting head (8).
9. The optical lens mold with the mold core ejecting structure as claimed in claim 2, wherein: the number of the guide bush (91), the number of the ball guide sleeve (92) and the number of the linear rod (93) are four; the four guide bushings (91) are arranged around the template (3) at equal intervals; the four linear rods (93) are arranged around the top of the ejector plate (5) at equal intervals.
10. The optical lens mold with the mold core ejecting structure as claimed in claim 3, wherein: the equal-height screw (51) comprises a head part (52) and a rod part (53) connected with the head part (52); the rod part (53) is fixedly connected with the ejector plate (5); the return spring (22) is arranged between the head (52) and the inner wall of the return groove (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023350376.5U CN215095365U (en) | 2020-12-31 | 2020-12-31 | Optical lens mould with mould core ejection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023350376.5U CN215095365U (en) | 2020-12-31 | 2020-12-31 | Optical lens mould with mould core ejection structure |
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| Publication Number | Publication Date |
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| CN215095365U true CN215095365U (en) | 2021-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023350376.5U Active CN215095365U (en) | 2020-12-31 | 2020-12-31 | Optical lens mould with mould core ejection structure |
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| CN (1) | CN215095365U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112659489A (en) * | 2020-12-31 | 2021-04-16 | 东莞市旭瑞光电科技有限公司 | Optical lens mould with mould core ejection structure |
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2020
- 2020-12-31 CN CN202023350376.5U patent/CN215095365U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112659489A (en) * | 2020-12-31 | 2021-04-16 | 东莞市旭瑞光电科技有限公司 | Optical lens mould with mould core ejection structure |
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