CN216032435U - Lens compression molding equipment - Google Patents
Lens compression molding equipment Download PDFInfo
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- CN216032435U CN216032435U CN202121516224.XU CN202121516224U CN216032435U CN 216032435 U CN216032435 U CN 216032435U CN 202121516224 U CN202121516224 U CN 202121516224U CN 216032435 U CN216032435 U CN 216032435U
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Abstract
The utility model discloses a lens compression molding device, comprising: the press machine comprises a machine table, a first fixing plate, a second fixing plate, a movable plate, a first oil cylinder and a second oil cylinder, wherein the first fixing plate and the second fixing plate are symmetrically arranged above the machine table; and the forming die comprises a front die and a rear die, the front die is arranged in the middle of one side of the movable plate close to the second fixed plate, and the rear die is arranged in the middle of the second fixed plate and is just opposite to the front die. The utility model has the beneficial effects that: can become lens work piece finished product with the lens material embryo one shot forming of heat softening, compare in prior art layering and mould plastics, production efficiency is high, and the shaping is more accurate, and the radian precision of lens is higher, has avoided the inside impurity that gets into of lens, avoids the lens cambered surface to take place to warp.
Description
Technical Field
The utility model belongs to the field of lens production, and particularly relates to a lens compression molding device.
Background
In order to meet the requirements of optical equipment, the thick-wall injection-molded lens has a thicker thickness, the production process in the prior art mostly adopts a layered injection molding scheme, and the thick-wall injection-molded lens is formed by injection molding one layer by one layer from inside to outside for multiple times, but the process has multiple forming steps, complex process and low production efficiency.
The once-formed lens needs to be heated again after the lens blank is subjected to injection molding, so as to soften the lens blank, and then the lens blank is subjected to compression molding, so that the finished product of the lens is finally formed.
In summary, in order to solve the existing technical problems, the utility model designs a lens compression molding device which has a simple structure and can press-mold the softened lens blank.
Disclosure of Invention
The utility model aims to solve the technical problems in the prior art and designs a lens compression molding device which has a simple structure and can be used for compression molding of a softened lens blank.
The purpose of the utility model can be realized by the following technical scheme:
a lens press forming apparatus comprising:
the press machine comprises a machine table, a first fixed plate, a second fixed plate, a movable plate, a first oil cylinder and a second oil cylinder, wherein the first fixed plate and the second fixed plate are symmetrically arranged above the machine table, a sliding column is connected between the first fixed plate and the second fixed plate, the movable plate is arranged between the first fixed plate and the second fixed plate, the movable plate is in sliding connection with the sliding column, the first oil cylinder is arranged in the middle of the first fixed plate, the output end of the first oil cylinder is connected with the movable plate, and the second oil cylinder is arranged in the middle of the second fixed plate;
the forming die comprises a front die and a rear die, the front die is arranged in the middle of one side of the movable plate close to the second fixed plate, and the rear die is arranged in the middle of the second fixed plate and is opposite to the front die;
the front die comprises a front die fixing plate and a first female die, the front die fixing plate is connected to the front side of the first female die, and a first die cavity is formed in the inner side surface of the first female die;
the rear die comprises a rear die fixing plate, a second female die and a die core, the rear die fixing plate is connected to the rear side of the second female die, a second die cavity which is through is formed in the middle of the second female die in the front and back direction, the die core is arranged in the second die cavity in a sliding mode, the rear die fixing plate is provided with a through hole which is matched with the die core in a sliding mode, and the output end of the second oil cylinder is connected with the die core.
Furthermore, a first side groove is formed in the periphery of the first die cavity, a vertical groove is formed above the first die cavity, and a trapezoidal groove is formed above the vertical groove.
Furthermore, be equipped with around the second die cavity with first limit groove complex second limit groove, second die cavity top be equipped with erect groove complex L shape groove, L shape groove top be equipped with dovetail groove complex wedge groove.
Further, guide posts are symmetrically arranged on the inner side surface of the first concave die, and guide holes matched with the guide posts are formed in the inner side surface of the second concave die.
Furthermore, the rear side of the rear mold fixing plate is provided with L-shaped connecting blocks which are symmetrical up and down, and a movable space of the mold core and the second oil cylinder is enclosed between the L-shaped connecting blocks.
Compared with the prior art, the utility model has reasonable structure and arrangement: can become lens work piece finished product with the lens material embryo one shot forming of heat softening, compare in prior art layering and mould plastics, production efficiency is high, and the shaping is more accurate, and the radian precision of lens is higher, has avoided the inside impurity that gets into of lens, avoids the lens cambered surface to take place to warp.
Drawings
FIG. 1 is an overall schematic view of the present lens press-molding apparatus;
FIG. 2 is a schematic view of a forming die;
FIG. 3 is a schematic view of a front mold;
FIG. 4 is a schematic structural view of a forming mold;
referring to fig. 1-4, wherein: 11. a machine platform; 12. a first fixing plate; 13. a second fixing plate; 14. a movable plate; 15. a first cylinder; 16. a second cylinder; 17. a sliding post; 2. a front mold; 21. a front mold fixing plate; 22. a first female die; 221. a first mold cavity; 222. a first side groove; 223. a vertical slot; 224. a trapezoidal groove; 225. a guide post; 3. a rear mold; 31. a rear mold fixing plate; 311. a through hole; 32. a second female die; 321. a second mold cavity; 322. a second side groove; 323. an L-shaped slot; 324. a wedge-shaped groove; 325. a guide hole; 33. and (5) a mold core.
Detailed Description
The technical solution of the present invention is further illustrated by the following examples. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The first embodiment is as follows:
a lens press forming apparatus comprising:
the press machine comprises a machine table 11, a first fixed plate 12, a second fixed plate 13, a movable plate 14, a first oil cylinder 15 and a second oil cylinder 16, wherein the first fixed plate 12 and the second fixed plate 13 are symmetrically arranged above the machine table 11, a sliding column 17 is connected between the first fixed plate 12 and the second fixed plate 13, the movable plate 14 is arranged between the first fixed plate 12 and the second fixed plate 13, the movable plate 14 is connected with the sliding column 17 in a sliding manner, the first oil cylinder 15 is arranged in the middle of the first fixed plate 12, the output end of the first oil cylinder 15 is connected with the movable plate 14, and the second oil cylinder 16 is arranged in the middle of the second fixed plate 13;
the forming die comprises a front die 2 and a rear die 3, wherein the front die 2 is arranged in the middle of one side of the movable plate 14 close to the second fixed plate 13, and the rear die 3 is arranged in the middle of the second fixed plate 13 and is opposite to the front die 2;
the front mold 2 comprises a front mold fixing plate 21 and a first female mold 22, the front mold fixing plate 21 is connected to the front side of the first female mold 22, and a first mold cavity 221 is formed in the inner side surface of the first female mold 22;
the rear die 3 comprises a rear die fixing plate 31, a second concave die 32 and a die core 33, the rear die fixing plate 31 is connected to the rear side of the second concave die 32, a second die cavity 321 which is through from front to back is arranged in the middle of the second concave die 32, the die core 33 is arranged in the second die cavity 321 in a sliding mode, the rear die fixing plate 31 is provided with a through hole 311 which is matched with the die core 33 in a sliding mode, and the output end of the second oil cylinder 16 is connected with the die core 33.
Specifically, when the lens blank is pressed and molded, the lens blank after being heated and softened is placed in the second mold cavity 321, the first oil cylinder 15 is started, the first oil cylinder 15 pushes the movable plate 14 to drive the front mold 2 to move towards the rear mold 3, the front mold 2 and the rear mold 3 are closed, preliminarily pressing the lens blank, starting the second oil cylinder 16, pushing the mold core 23 by the second oil cylinder 16 to enable the mold core 33 to move towards the lens blank in the second mold cavity 321, extruding the lens blank by the end surface of the mold core 33 to enable the lens blank to be completely attached to the first mold cavity 221, keeping the compression state, maintaining the pressure for a period of time, and forming the lens blank into a finished lens workpiece, then the second oil cylinder 16 drives the mold core 33 to return, the first oil cylinder 15 drives the movable plate 14 and the front mold 2 to return, and the front mold 2 and the rear mold 3 are separated, so that the cooled and molded lens workpiece finished product can be taken out, and the molding step is completed. The utility model has the advantages that the lens blank softened by heating can be formed into a finished lens workpiece product at one time, compared with the prior art of layered injection molding, the production efficiency is high, the molding is more accurate, and impurities entering the inside of the lens are avoided.
Example two:
the difference between the second embodiment and the first embodiment is that a first side groove 222 is formed around the first mold cavity 221, a vertical groove 223 is formed above the first mold cavity 221, and a trapezoidal groove 224 is formed above the vertical groove 223.
A second side groove 322 matched with the first side groove 222 is arranged around the second die cavity 321, an L-shaped groove 323 matched with the vertical groove 223 is arranged above the second die cavity 321, and a wedge-shaped groove 324 matched with the trapezoidal groove 224 is arranged above the L-shaped groove 323.
Specifically, the first edge groove 222 is matched with the second edge groove 322, so that the edge of the lens blank can be extruded and formed into a finished lens workpiece for installing and fixing a fixing edge; the L-shaped groove 323 is used for matching with L-shaped excess materials above the lens blank to enable the lens blank to be hung at the second die cavity 321, and the vertical groove 223 is matched with the L-shaped groove 323 to fix the L-shaped excess materials of the lens blank; the trapezoidal groove 224, in cooperation with the wedge groove 324, can accommodate a wedge-shaped excess material above the lens blank for separation from the injection track break.
Example three:
the difference between the third embodiment and the first embodiment is that the inner side surface of the first concave die 22 is symmetrically provided with guide posts 225, and the inner side surface of the second concave die 32 is provided with guide holes 325 matched with the guide posts 225.
Specifically, the guide post 225 and the guide hole 325 are matched when the front mold 2 and the rear mold 3 are closed, so that the first mold cavity 221 and the second mold cavity 321 are butted more accurately.
Example four:
the difference between the fourth embodiment and the first embodiment is that the rear side of the rear mold fixing plate 31 is provided with L-shaped connecting blocks 312 which are symmetrical up and down, and a movable space between the mold core 33 and the second oil cylinder 16 is enclosed between the L-shaped connecting blocks 312.
Specifically, the L-shaped connecting blocks 312 are used for fixing the rear mold fixing plate 31, and a space between the L-shaped connecting blocks 312 is used for the mold core 33 and the output end of the second oil cylinder 16 to move back and forth, and is used for connecting the second oil cylinder 16 with the mold core 33.
What has been described herein is merely a preferred embodiment of the utility model, and the scope of the utility model is not limited thereto. Modifications, additions, or substitutions by those skilled in the art to the specific embodiments described herein are intended to be within the scope of the utility model.
Claims (5)
1. A lens press forming apparatus, comprising:
the press machine comprises a machine table, a first fixed plate, a second fixed plate, a movable plate, a first oil cylinder and a second oil cylinder, wherein the first fixed plate and the second fixed plate are symmetrically arranged above the machine table, a sliding column is connected between the first fixed plate and the second fixed plate, the movable plate is arranged between the first fixed plate and the second fixed plate, the movable plate is in sliding connection with the sliding column, the first oil cylinder is arranged in the middle of the first fixed plate, the output end of the first oil cylinder is connected with the movable plate, and the second oil cylinder is arranged in the middle of the second fixed plate;
the forming die comprises a front die and a rear die, the front die is arranged in the middle of one side of the movable plate close to the second fixed plate, and the rear die is arranged in the middle of the second fixed plate and is opposite to the front die;
the front die comprises a front die fixing plate and a first female die, the front die fixing plate is connected to the front side of the first female die, and a first die cavity is formed in the inner side surface of the first female die;
the rear die comprises a rear die fixing plate, a second female die and a die core, the rear die fixing plate is connected to the rear side of the second female die, a second die cavity which is through is formed in the middle of the second female die in the front and back direction, the die core is arranged in the second die cavity in a sliding mode, the rear die fixing plate is provided with a through hole which is matched with the die core in a sliding mode, and the output end of the second oil cylinder is connected with the die core.
2. A lens press-molding apparatus as claimed in claim 1, wherein said first cavity is provided with a first side groove around the periphery thereof, said first cavity is provided with a vertical groove above the first cavity, and said vertical groove is provided with a trapezoidal groove above the vertical groove.
3. A lens press-molding apparatus as claimed in claim 2, wherein a second side groove is provided around said second cavity to engage with said first side groove, an L-shaped groove is provided above said second cavity to engage with said vertical groove, and a wedge groove is provided above said L-shaped groove to engage with said trapezoidal groove.
4. The lens press-forming apparatus according to claim 1, wherein the inner surface of the first female die is symmetrically provided with guide posts, and the inner surface of the second female die is provided with guide holes for engaging with the guide posts.
5. The lens press-forming apparatus according to claim 1, wherein L-shaped connecting blocks are provided at the rear side of the rear mold fixing plate, and are vertically symmetrical, and a space for movement of the mold core and the second cylinder is enclosed between the L-shaped connecting blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121516224.XU CN216032435U (en) | 2021-07-05 | 2021-07-05 | Lens compression molding equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121516224.XU CN216032435U (en) | 2021-07-05 | 2021-07-05 | Lens compression molding equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216032435U true CN216032435U (en) | 2022-03-15 |
Family
ID=80555189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121516224.XU Active CN216032435U (en) | 2021-07-05 | 2021-07-05 | Lens compression molding equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216032435U (en) |
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2021
- 2021-07-05 CN CN202121516224.XU patent/CN216032435U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 322203 No. 9, Jingcai Road, crystal Town, Yantou Town, Pujiang County, Jinhua City, Zhejiang Province Patentee after: Zhejiang Huaju Optoelectronics Co.,Ltd. Address before: 322203 No. 9, Jingcai Road, crystal Town, Yantou Town, Pujiang County, Jinhua City, Zhejiang Province Patentee before: Zhejiang Huaju Optical Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |