CN215882422U

CN215882422U - Compression manufacturing mold for myopia glasses

Info

Publication number: CN215882422U
Application number: CN202122426724.0U
Authority: CN
Inventors: 彭汉武
Original assignee: Heshengxin Xiamen Optical Technology Co ltd
Current assignee: Heshengxin Xiamen Optical Technology Co ltd
Priority date: 2021-10-09
Filing date: 2021-10-09
Publication date: 2022-02-22
Anticipated expiration: 2031-10-09

Abstract

The utility model relates to the field of lens manufacturing, and discloses a myopia lens compression manufacturing mold which comprises a fixed mold and a movable mold which are oppositely arranged, wherein the fixed mold is positioned above the movable mold, a sprue is arranged on the fixed mold, a molding cavity is arranged on the movable mold, a fixed mold insert which is opposite to the molding cavity is fixed on the fixed mold, the sprue is communicated with the molding cavity, an elasticity adjusting assembly is arranged in the movable mold, the elasticity adjusting assembly comprises an elasticity driving structure and a movable mold insert which is positioned in the molding cavity, and the elasticity driving structure drives the movable mold insert to move up and down.

Description

Compression manufacturing mold for myopia glasses

Technical Field

The utility model relates to the field of lens manufacturing, in particular to a compression manufacturing mold for myopia glasses.

Background

Spectacles are lens pieces embedded in a frame that are worn in front of the eyes to improve vision, protect the eyes, or for decorative purposes. Lenses can correct a variety of vision problems, including myopia, hyperopia, astigmatism, presbyopia, or strabismus. The existing lens is generally made of optical materials such as glass or resin.

When the lens mold is molded and processed, the existing lens mold is complex in structure and unstable in operation, the height in the molding cavity is generally fixed, the lens mold cannot be adjusted during production, one mold can only produce a lens with fixed thickness, the produced finished product is high, and the degree of compaction in the molding cavity cannot be adjusted after the mold is closed.

SUMMERY OF THE UTILITY MODEL

Therefore, a myopia lens compression manufacturing mold is needed to be provided, and the problem that the height of an existing mold forming cavity cannot be flexibly adjusted to produce lenses with various thicknesses is solved.

In order to achieve the purpose, the utility model provides a myopia lens compression manufacturing die which comprises a fixed die and a movable die which are arranged oppositely, wherein the fixed die is positioned above the movable die, a sprue is arranged on the fixed die, a forming cavity is arranged on the movable die, a fixed die insert which is opposite to the forming cavity is fixed on the fixed die, the sprue is communicated with the forming cavity, an elasticity adjusting assembly is arranged in the movable die, the elasticity adjusting assembly comprises an elasticity driving structure and a movable die insert which is positioned in the forming cavity, and the elasticity driving structure drives the movable die insert to move up and down.

Further, the elasticity drive structure includes rotation axis, the rotatory lead screw and the movable block of vertical setting that the level set up, the movable block is located the shaping intracavity, the rotation axis passes through bevel gear transmission with rotatory lead screw and is connected, rotatory lead screw suits with the shaping chamber position, the bottom surface in shaping chamber is upwards run through on the top of rotatory lead screw, the movable block spiro union is in the top of rotatory lead screw, the movable mould is inserted and is fixed mutually with the movable block. The rotating shaft is connected with the rotating screw rod through bevel gear transmission to complete the change of the transmission direction, and the movable block can move up and down by changing the rotating direction of the rotating screw rod, so that the movable die insert can move up and down.

Furthermore, the bottom surface of the molding cavity is fixed with a convex rotation stopping needle, the movable block is provided with a movable hole which is communicated up and down, and the movable hole is matched with the rotation stopping needle. The rotation of the movable block can be limited by the arrangement of the anti-rotation needle, so that the movable block can move up and down under the action of the rotary screw rod.

Furthermore, one end of the rotating shaft, which is far away from the rotating screw rod, is provided with an electric wrench joint. When the tightness in the forming cavity needs to be adjusted, the rotary screw rod is quickly connected with an external electric wrench.

Further, the movable mould includes from top to bottom fixed movable mould benevolence, first fixed plate, second fixed plate and lower fixing base mutually, the shaping chamber is located movable mould benevolence, be equipped with on the second fixed plate with the fixed chamber of rotation axis and rotatory lead screw looks adaptation, rotation axis and rotatory lead screw are fixed at fixed intracavity, rotatory lead screw upwards runs through first fixed plate and extends to the shaping intracavity. The one end of the rotation axis of keeping away from rotatory lead screw is located the side of second fixed plate, and the bevel gear transmission structure also is located fixed intracavity, and the shape in fixed chamber is for including the main cavity body and the passageway that the top surface and side link up, and rotation axis and rotatory lead screw are located the passageway of side and top surface respectively.

Furthermore, the tightness driving structure further comprises a first rotating bearing and a second rotating bearing, the first rotating bearing is fixed at the bottom of the fixed cavity, the second rotating bearing is fixed at the bottom surface of the first fixed plate, and the rotating screw rod is matched with the first rotating bearing and the second rotating bearing. First swivel bearing, second swivel bearing are used for fixed swivel screw for swivel screw's rotation is more stable, and swivel screw's bottom is fixed mutually with first swivel bearing, and swivel screw passes second swivel bearing.

Furthermore, the side edge of the forming cavity is provided with an overflow groove, the lower fixing seat comprises a lower bottom plate and two supporting plates, the two supporting plates are oppositely arranged on the lower bottom plate, a movable cavity is formed in the space between the two supporting plates, a movable plate is arranged in the movable cavity, a top post is fixed on the movable plate, the top post sequentially penetrates through the second fixing plate, the first fixing plate and the movable die core, and the top end of the top post extends to the overflow groove. After injection molding in the molding cavity, two side edges of the lens can form an overflow sheet, the movable plate drives the ejection column to eject upwards, and then the molded lens is ejected out of the molding cavity through the ejection overflow sheet, so that the lens is convenient to collect without damaging the lens, and the purpose of rapid production is achieved.

Furthermore, the movable mold further comprises a limiting column, the bottom end of the limiting column is fixed with the second fixing plate, the top end of the limiting column upwards penetrates through the first fixing plate and the movable mold core and protrudes out of the surface of the movable mold core, and a limiting hole matched with the limiting column is formed in the fixed mold. The relative position of the movable mould and the fixed mould can be limited by the limiting columns and the limiting holes, the position of the movable mould and the position of the fixed mould are prevented from being staggered in the frequent mould opening and closing process, the accuracy of closing the movable mould and the fixed mould is facilitated, and the production efficiency is guaranteed.

Further, the cover half is including the upper plate, an upper fixed plate and the cover half mould benevolence from top to bottom, the cover half is inserted and is fixed in the cover half mould benevolence, be equipped with the shunt in the upper fixed plate, be equipped with the subchannel in the shunt, subchannel connects into die cavity and runner.

Furthermore, the number of the molding cavities is four, the sub-runners comprise a main runner and four sub-runners connected with the main runner, the center of the main runner is connected with the pouring gate, and the four sub-runners respectively correspond to one molding cavity. Four become the die cavity and be used for producing a plurality of lenses simultaneously, improve production efficiency, the shunt plays the effect of reposition of redundant personnel.

The technical scheme has the following beneficial effects:

according to the utility model, the fixed die and the movable die are matched to form the molding cavity, resin liquid is introduced into the molding cavity, and then the lens is prepared by cooling and molding, the upper position and the lower position of the movable die insert in the molding cavity can be adjusted by the tightness adjusting component, so that the depth of the cavity is adjusted, and further, in the molding cavity during die matching, proper tightness is provided between the bottom surfaces of the movable die insert and the fixed die insert, so that the lens is favorably and smoothly produced.

Drawings

FIG. 1 is a block diagram of a mold according to an embodiment.

Fig. 2 is an exploded structural view of the mold according to the embodiment.

Fig. 3 is a structural view of the movable mold according to the embodiment.

FIG. 4 is a block diagram of a mold cavity in accordance with an embodiment.

Fig. 5 is an exploded structural view of the moving mold according to the embodiment.

FIG. 6 is a block diagram of a slack adjuster assembly according to an embodiment.

FIG. 7 is a cross-sectional view of a slack adjustment assembly according to an embodiment.

Fig. 8 is a structural view of the lower fixing base according to the embodiment.

Fig. 9 is a structural view of the bottom surface of the lower fixing base according to the embodiment.

FIG. 10 is an exploded view of the stationary mold according to the embodiment.

FIG. 11 is a block diagram of a diverter according to an embodiment.

Fig. 12 is an internal structural view of a flow diverter according to an embodiment.

Description of reference numerals:

1. fixing a mold; 11. an upper base plate; 12. an upper fixing plate; 13. fixing a mold core; 14. a fixed die insert; 15. a flow divider; 151. a shunt channel; 16. a gate;

2. moving the mold; 21. a movable mould core; 22. a first fixing plate; 23. a second fixing plate; 24. a lower fixed seat; 241. a lower base plate; 242. a support plate; 243. a movable plate; 244. a top pillar; 25. a molding cavity; 251. overflowing out of the groove; 26. a limiting column;

3. a tightness adjusting assembly; 31. a movable die insert; 32. a tension drive structure; 321. a rotating shaft; 322. a bevel gear; 323. rotating the screw rod; 324. a movable block; 325. an electric wrench joint; 326. a rotation stopping needle; 327. a second rotary bearing; 328. a first slew bearing.

Detailed Description

To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.

Referring to fig. 1-12, the embodiment discloses a compression manufacturing mold for a myopia lens, which includes a fixed mold 1 and a movable mold 2 that are arranged oppositely, the fixed mold 1 is located above the movable mold 2, a sprue 16 is arranged on the fixed mold 1, a molding cavity 25 is arranged on the movable mold 2, a fixed mold insert 14 that is opposite to the molding cavity 25 is fixed on the fixed mold 1, the sprue 16 is communicated with the molding cavity 25, a tightness adjusting assembly 3 is arranged in the movable mold 2, the tightness adjusting assembly 3 includes a tightness driving structure 32 and a movable mold insert 31 that is located in the molding cavity 25, and the tightness driving structure 32 drives the movable mold insert 31 to move up and down.

The cover half 1 is including upper plate 11, upper fixed plate 12 and the cover half benevolence 13 from top to bottom, the cover half is inserted 14 and is fixed on cover half benevolence 13, be equipped with shunt 15 in the upper fixed plate 12, be equipped with subchannel 151 in the shunt 15, subchannel 151 connects into die cavity 25 and runner 16. In this embodiment, the upper base plate 11, the upper fixing plate 12, and the fixed mold core 13 are fixed by bolts. The number of the molding cavities 25 is four, the sub-runners 151 include a main runner and four sub-runners connected with the main runner, the center of the main runner is connected with the gate 16, and the four sub-runners correspond to one molding cavity 25 respectively. The four molding cavities 25 are used for simultaneously producing a plurality of lenses, so that the production efficiency is improved, and the flow divider 15 plays a role in flow dividing.

The movable mold 2 comprises a movable mold core 21, a first fixing plate 22, a second fixing plate 23 and a lower fixing seat 24, which are fixed from top to bottom, and the molding cavity 25 is located on the movable mold core 21.

The tightness driving structure 32 comprises a horizontally arranged rotating shaft 321, a vertically arranged rotating screw rod 323 and a movable block 324, the movable block 324 is located in the molding cavity 25, the rotating shaft is in transmission connection with the rotating screw rod 323 through a bevel gear 322, the rotating screw rod 323 is matched with the molding cavity 25 in position, the top end of the rotating screw rod 323 upwards penetrates through the bottom surface of the molding cavity 25, the movable block 324 is in threaded connection with the top end of the rotating screw rod 323, and the movable die insert 31 is fixed with the movable block 324. The rotating shaft is in transmission connection with the rotating screw rod 323 through the bevel gear 322 to complete the change of the transmission direction, and the change of the rotating direction of the rotating screw rod 323 can enable the movable block 324 to move up and down, so that the movable die insert 31 can move up and down.

Specifically, the movable block 324 and the movable die insert 31 are fixed by bolts, and the movable die insert 31 can be replaced.

In this embodiment, the second fixing plate 23 is provided with a fixing cavity adapted to the rotating shaft 321 and the rotating screw rod 323, the rotating shaft 321 and the rotating screw rod 323 are fixed in the fixing cavity, and the rotating screw rod 323 upwardly penetrates through the first fixing plate 22 and extends into the forming cavity 25. One end of the rotating shaft 321, which is far away from the rotating screw rod 323, is located on the side surface of the second fixing plate 23, the bevel gear transmission structure is also located in the fixing cavity, the fixing cavity is shaped to include a main cavity, a top surface and a channel through the side surface, and the rotating shaft 321 and the rotating screw rod 323 are respectively located in the channels of the side surface and the top surface. The tightness driving structure 32 further comprises a first rotating bearing 328 and a second rotating bearing 327, the first rotating bearing 328 is fixed at the bottom of the fixed cavity, the second rotating bearing 327 is fixed at the bottom surface of the first fixed plate 22, and the rotating screw rod 323 is matched with the first rotating bearing 328 and the second rotating bearing 327. The first rotating bearing 328 and the second rotating bearing 327 are used for fixing the rotating screw rod 323, so that the rotating screw rod 323 can rotate more stably, the bottom of the rotating screw rod 323 is fixed with the first rotating bearing 328, and the rotating screw rod 323 passes through the second rotating bearing 327.

Further, a protruding rotation stopping needle 326 is fixed on the bottom surface of the molding cavity 25, a movable hole which is through up and down is formed in the movable block 324, and the movable hole is matched with the rotation stopping needle 326.

The rotation preventing pin 326 is provided to restrict the rotation of the movable block 324 so that the movable block 324 moves up and down by the rotation screw 323. An electric wrench joint 325 is arranged at one end of the rotating shaft 321 far away from the rotating screw rod 323. When the tightness in the forming cavity 25 needs to be adjusted, the rotary screw 323 is quickly connected with an external electric wrench.

The side edge of the forming cavity 25 is provided with an overflow groove 251, the lower fixing seat 24 includes a lower bottom plate 241 and two supporting plates 242, the two supporting plates 242 are oppositely disposed on the lower bottom plate 241, a movable cavity is formed in a space between the two supporting plates 242, a movable plate 243 is disposed in the movable cavity, a top pillar 244 is fixed on the movable plate 243, the top pillar 244 upwards sequentially penetrates through the second fixing plate 23, the first fixing plate 22 and the movable mold core 21, and the top end of the top pillar 244 extends to the overflow groove 251. After injection molding is performed in the molding cavity 25, two side edges of the lens can form an overflow sheet, the movable plate 243 drives the ejection post 244 to eject upwards, and then the molded lens is ejected out of the molding cavity 25 through the ejection overflow sheet, so that the lens is convenient to collect without damaging the lens, and the purpose of rapid production is achieved.

In this embodiment, a connection through hole may be formed on the lower plate 241, so that the movable plate 243 can be conveniently connected to a driving shaft of an external driving device to drive the movable plate 243 to move up and down.

The movable mold 2 further comprises a limiting column 26, the bottom end of the limiting column 26 is fixed to the second fixing plate 23, the top end of the limiting column 26 upwards penetrates through the first fixing plate 22 and the movable mold core 21 and protrudes out of the surface of the movable mold core 21, and a limiting hole matched with the limiting column 26 is formed in the fixed mold 1. The limiting column 26 and the limiting hole can limit the relative position of the movable mold 2 and the fixed mold 1, and the position of the movable mold 2 and the fixed mold 1 is prevented from being dislocated in the frequent mold opening and closing process, so that the accuracy of mold closing of the movable mold 2 and the fixed mold 1 is facilitated, and the high-efficiency production is guaranteed.

In this embodiment, the number of the limiting columns 26 is four, and the four limiting columns are respectively located at four corners of the movable mold 2, and the bottom ends of the limiting columns 26 are fixed to the second fixing plate 23 through bolts.

When the utility model is used:

the movable mold 2 is integrally connected with an external driving device, the movable mold 2 moves upwards to be matched with the fixed mold 1, after the mold is matched, the position of the movable mold insert 31 in the molding cavity 25 can be adjusted through the tightness adjusting component 3, when the tightness adjusting component 3 is adjusted, the electric rotating shaft 321 of an external electric wrench rotates, the rotating shaft 321 drives the rotating screw rod 323 through the bevel gear, the rotating screw rod 323 rotates to drive the movable block 324 to move up and down together with the movable mold insert 31, after the adjustment is completed, liquid is guided into each molding cavity 25 from the pouring gate 16 through the shunt of the shunt 15 to be molded, after the cooling is completed, the movable mold 2 moves downwards for a certain distance to complete mold opening, then the movable plate 243 moves upwards, the ejector columns 244 eject the lenses out of the molding cavities 25, and the lenses are convenient to take up.

It is noted that, herein, relational terms such as first and second, and the like may be 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. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal 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 terminal. Without further limitation, an element defined by the phrases "comprising … …" or "comprising … …" does not exclude the presence of additional elements in a process, method, article, or terminal that comprises the element. Further, herein, "greater than," "less than," "more than," and the like are understood to exclude the present numbers; the terms "above", "below", "within" and the like are to be understood as including the number.

Although the embodiments have been described, once the basic inventive concept is obtained, other variations and modifications of these embodiments can be made by those skilled in the art, so that the above embodiments are only examples of the present invention, and not intended to limit the scope of the present invention, and all equivalent structures or equivalent processes using the contents of the present specification and drawings, or any other related technical fields, which are directly or indirectly applied thereto, are included in the scope of the present invention.

Claims

1. The utility model provides a myopia lens compression manufacturing mould, its characterized in that, cover half and movable mould including relative setting, the cover half is located the top of movable mould, be equipped with the runner on the cover half, be equipped with the molding cavity on the movable mould, be fixed with on the cover half and insert with the relative cover half in molding cavity, the runner communicates with each other with the molding cavity, be equipped with the tight regulation subassembly in the movable mould, the tight regulation subassembly includes the elasticity drive structure and inserts with the movable mould that is located the molding cavity, the up-and-down motion is inserted to elasticity drive structure drive movable mould.

2. A myopia lens compression manufacturing mold as claimed in claim 1, wherein the elastic driving mechanism comprises a horizontally disposed rotating shaft, a vertically disposed rotating screw rod and a movable block, the movable block is located in the molding cavity, the rotating shaft is in transmission connection with the rotating screw rod through a bevel gear, the rotating screw rod is adapted to the molding cavity, the top end of the rotating screw rod extends upwards through the bottom surface of the molding cavity, the movable block is in threaded connection with the top end of the rotating screw rod, and the movable mold insert is fixed with the movable block.

3. A mold for compression manufacturing of myopia glasses according to claim 2, wherein the bottom surface of the forming cavity is fixed with a protruding rotation stopping needle, the movable block is provided with a movable hole which is through up and down, and the movable hole is matched with the rotation stopping needle.

4. A mold for compression manufacture of a myopic lens as in claim 2, wherein an end of the rotation shaft remote from the rotation screw is provided with a power wrench joint.

5. A mold for compression manufacturing of a myopic lens as in claim 2, wherein the movable mold comprises a movable mold core, a first fixing plate, a second fixing plate and a lower fixing seat fixed from top to bottom, the molding cavity is located on the movable mold core, the second fixing plate is provided with a fixing cavity matching with the rotating shaft and the rotating screw rod, the rotating shaft and the rotating screw rod are fixed in the fixing cavity, and the rotating screw rod penetrates the first fixing plate upwards and extends into the molding cavity.

6. A myopia lens compression manufacturing mold as claimed in claim 5, wherein the elastic drive structure further comprises a first rotation bearing and a second rotation bearing, the first rotation bearing is fixed at the bottom of the fixed cavity, the second rotation bearing is fixed at the bottom surface of the first fixed plate, and the rotation screw rod is matched with the first rotation bearing and the second rotation bearing.

7. A myopia lens compression manufacturing mold as claimed in claim 5, wherein the molding cavity has opposing overflow grooves on the sides thereof, the lower fixing base includes a lower plate and two supporting plates, the two supporting plates are disposed opposite to each other on the lower plate, a movable cavity is formed in the space between the two supporting plates, a movable plate is disposed in the movable cavity, a top pillar is fixed on the movable plate, the top pillar sequentially penetrates the second fixing plate, the first fixing plate and the movable mold core upward, and the top end of the top pillar extends to the overflow grooves.

8. A myopia lens compression manufacturing mold as claimed in claim 5, wherein the movable mold further comprises a limiting post, the bottom end of the limiting post is fixed to the second fixing plate, the top end of the limiting post extends upward through the first fixing plate and the movable mold core and protrudes out of the surface of the movable mold core, and the fixed mold is provided with a limiting hole matched with the limiting post.

9. A myopia lens compression manufacturing mold according to claim 1, wherein the fixed mold comprises an upper base plate, an upper fixing plate and a fixed mold core from top to bottom, the fixed mold insert is fixed on the fixed mold core, a flow divider is arranged in the upper fixing plate, a sub-channel is arranged in the flow divider, and the sub-channel is connected with the molding cavity and the pouring gate.

10. A compression-manufacturing mold for a myopic lens as in claim 9, wherein the number of the molding cavities is four, the sub-channels comprise a main channel and four connected sub-channels, the center of the main channel is connected with the gate, and each of the four sub-channels corresponds to one molding cavity.