CN209176214U - Non-spherical lens molding machine - Google Patents
Non-spherical lens molding machine Download PDFInfo
- Publication number
- CN209176214U CN209176214U CN201822177843.5U CN201822177843U CN209176214U CN 209176214 U CN209176214 U CN 209176214U CN 201822177843 U CN201822177843 U CN 201822177843U CN 209176214 U CN209176214 U CN 209176214U
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- China
- Prior art keywords
- bed die
- spherical lens
- mandril
- molding machine
- die
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- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model, which provides one kind, can reduce the non-spherical lens molding machine that middle part is sagging, edge tilts degree.Non-spherical lens molding machine, including top, mandril, bed die, pedestal, cylinder and stop collar, one end and top of the mandril connect, and the other end of the mandril is inserted in stop collar and is arranged in bed die；The bed die is made of lower die and bed die set, and the lower die and bed die set connect, and the bed die set is fixed on the base；Between the step that the stop collar is set on the base and the lower surface of bed die set；The cylinder, which pushes, pushes up top on mandril.The utility model by keeping mold cavity internal pressure when die mould, can reduce the degree that middle part is sunk, edge tilts caused by the influence of die mould moment blank self gravity using ejection device on bottom surface；Solving illumination is that die mould is greater than 30 non-spherical lens of Φ and is presented that edge is just overproof, situation of middle part limit on the lower side.
Description
Technical field
The utility model relates to a kind of non-spherical lens molding machine, more particularly to a kind of illumination be non-spherical lens at
Type section face type PV value optimizes molding machine.
Background technique
The condition of the open single side vertical compression technique of secondary press is used in the non-spherical lens that illumination system is greater than 30 bore of Φ
Under, the face type PV value of the non-spherical lens of production is always presented that edge is just overproof, rule of middle part limit on the lower side.In production process
In, according to test surfaces type PV data after first pressure testing, then the process that opposite type compensates, current die mould is greater than 30 bore of Φ
Non-spherical lens, since its edge and middle part deviation are larger, compensated face type PV value is second-rate, usually very big or pole
Small, the factor variation surplus for causing die mould effect stepwise face type to change is small, and product yield maintains 70% or so.
Utility model content
The technical problem to be solved by the utility model is to provide one kind can reduce middle part sink, edge tilt degree it is non-
Spherical lens molding machine.
The utility model technical scheme applied to solve the technical problem is: non-spherical lens molding machine, including top,
Mandril, bed die, pedestal, cylinder and stop collar, one end and top of the mandril connect, and the other end of the mandril is inserted in limit
Ring is simultaneously arranged in bed die；The bed die is made of lower die and bed die set, and the lower die and bed die set connect, and the bed die set is solid
It is scheduled on pedestal；Between the step that the stop collar is set on the base and the lower surface of bed die set；The cylinder pushes mandril
Upper top top.
It further, further include pressing plate, the fixed bed die of the pressing plate.
Further, the lower die is connected through a screw thread with bed die set.
Further, the bed die set is threadedly secured on pedestal.
Further, the upper heights of roofs of stop collar limitation top.
Further, one end with top of the mandril are connected through a screw thread.
The utility model has the beneficial effects that using ejection device on bottom surface, by keeping mold cavity internal pressure when die mould,
It can reduce the degree that middle part is sunk, edge tilts caused by the influence of die mould moment blank self gravity；Solves illumination
It is that die mould is greater than 30 non-spherical lens of Φ and is presented that edge is just overproof, situation of middle part limit on the lower side, while being capable of guarantee test pressure
Type face type PV is controlled within 80 μm, and for profile control within 40 μm, product yield is promoted to 85% or more after compensation.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the structural schematic diagram of the utility model bed die.
Specific embodiment
As shown in Figs. 1-2, the non-spherical lens molding machine of the utility model includes 1, mandril 2, bed die 3, pressing plate of top
4, pedestal 5, cylinder 6 and stop collar 7, one end and the top 1 of mandril 2 are connected through a screw thread, and the other end of mandril 2 is inserted in stop collar
7 and be arranged in bed die 3；Bed die 3 is made of lower die 31 and bed die set 32, and lower die 31 is connected through a screw thread with bed die set 32, bottom
Die sleeve 32 is threadedly secured on pedestal 5；The lower surface 321 of step 8 and bed die set 32 on pedestal 5 is arranged in stop collar 7
Between；Cylinder 6 pushes top top 1 on mandril 2；Pressing plate 4 fixes bed die 3.
The utility model is using pushing up mode on bottom, when work, when press, which pushes, reaches limit point, in the starting of cylinder 6
2 bottom of mandril is pushed up, so that top 1 be driven to complete to act the pressure maintaining in mold；Meanwhile under the action of stop collar 7, limitation top
First 1 upper heights of roofs；After the completion, the decline of cylinder 6 resets, and mandril 2 and top 1 also sink to resetting, when stop collar 7 bears against pedestal
When 5 step 8, sinking homing action stops.
Claims (6)
1. non-spherical lens molding machine, it is characterised in that: including top (1), mandril (2), bed die (3), pedestal (5), cylinder
(6) it is connect with stop collar (7), one end of the mandril (2) with top (1), the other end of the mandril (2) is inserted in stop collar
(7) and it is arranged in bed die (3)；The bed die (3) is made of lower die (31) and bed die set (32), the lower die (31) and bed die
(32) connection is covered, the bed die set (32) is fixed on pedestal (5)；The step that the stop collar (7) is arranged on pedestal (5)
(8) between the lower surface (321) of bed die set (32)；The cylinder (6) pushes top top (1) on mandril (2).
2. non-spherical lens molding machine as described in claim 1, it is characterised in that: further include pressing plate (4), the pressing plate
(4) fixed bed die (3).
3. non-spherical lens molding machine as described in claim 1, it is characterised in that: the lower die (31) and bed die set (32)
It is connected through a screw thread.
4. non-spherical lens molding machine as described in claim 1, it is characterised in that: the bed die set (32) is solid by screw thread
It is scheduled on pedestal (5).
5. non-spherical lens molding machine as described in claim 1, it is characterised in that: stop collar (7) the limitation top (1)
Upper heights of roofs.
6. non-spherical lens molding machine as described in claim 1, it is characterised in that: one end and top of the mandril (2)
(1) it is connected through a screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822177843.5U CN209176214U (en) | 2018-12-24 | 2018-12-24 | Non-spherical lens molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822177843.5U CN209176214U (en) | 2018-12-24 | 2018-12-24 | Non-spherical lens molding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209176214U true CN209176214U (en) | 2019-07-30 |
Family
ID=67377734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822177843.5U Active CN209176214U (en) | 2018-12-24 | 2018-12-24 | Non-spherical lens molding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209176214U (en) |
-
2018
- 2018-12-24 CN CN201822177843.5U patent/CN209176214U/en active Active
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