CN201140488Y

CN201140488Y - Improved mould core push-out structure for producing optical lens

Info

Publication number: CN201140488Y
Application number: CNU2007201953700U
Authority: CN
Inventors: 刘淑兰
Original assignee: SENYUN OPTOELECTRONIC Corp
Current assignee: Senyun precision Phenix Optical Company Limited
Priority date: 2007-11-20
Filing date: 2007-11-20
Publication date: 2008-10-29
Anticipated expiration: 2017-11-20

Abstract

The utility model discloses a modified mould kernel extrusion structure which is used for manufacturing optical lens and comprises a male mould sleeve whose inner sleeve is provided with a ball spindle sleeve and an ejection pin which is made of a piston mould kernel, a cushion and a support bar which is provided with at least two buffer portions and a female mould sleeve which corresponds to the male mould sleeve. The buffer posrtions can increase toughness of the integral support bar and enable deletion that the ejection pin leans to one side which is worked by movement of a mould to be capable of being offseted in order to enable the front end of the ejection pin to still retain vertical state, simultaneously, solve deletion which is produced by a cumulative common difference integrally which is brought by that the prior extrusion structure has to be connected on the mould via a jacketted portion, and that greatly improve ratio of good product and degree of precision of the optical lens, and achieve the purpose of modified mould kernel extrusion structure which is used for manufacturing optical lens.

Description

The improved die ejecting structure that is used to make optical mirror slip

Technical field

The utility model relates to a kind of die ejecting structure that is used to make optical mirror slip.

Background technology

TaiWan, China patent gazette application case number No. 095219613 " being used to make the die ejecting structure of optical mirror slip ", it comprises: a male die seat, it is provided with a ball axle sleeve, one piston die, described piston die and ball axle sleeve are column and respective shaft is connected in the described male die seat circular hole, and described ball shaft sleeve part is provided with several circle balls, described ball axle sleeve one side connects to cut by described round ball and described male die seat inwall and establishes, described again ball axle sleeve opposite side is also tangent by described round ball and described piston die external annulus, the forming part of described piston die one end and the planar portions of described male die seat are tangent, and the forming part of corresponding described female die seat and planar portions; One female die seat, it is provided with a forming part and planar portions, and described forming part, planar portions are corresponding with the forming part and the planar portions of described male die seat again, and form a die cavity structure;

But, above-mentioned " being used for making the die ejecting structure of optical mirror slip " though seamless between its ball axle sleeve that can rely on described male die seat and piston die ring wall connect airtight and do not have the gap and slide and eject start, the eccentricity of glasses lens, the crooked phenomenon that are taken place in the elimination optical mirror slip injection molding processing procedure;

Please consult shown in Figure 1 again, when above-mentioned patent ejecting structure 13 is applied on the mould 1, described female die seat 14 is located in the patrix 11, described male die seat 15 then is located in the counterdie 12,15 die cavity portions 16 that form a given shape of described female die seat 14 and male die seat, liquid mirror body stock injects in the die cavity portion 16, and again according to keeping a period of time aftershaping under specified pressure and the temperature, again described patrix 11 is separated with counterdie 12, it is the die sinking action, rely on the template 17 that ejects in the counterdie 12 to drive mobile work the on the socket part 171 again, and described socket part 171 rely on a fixture 172 and the pole 131 of ejecting structure 13 to fix, therefore, the pole 131 of ejecting structure 13 is also followed and is moved, and then piston die 132 is moved in ball axle sleeve 133, and eject object in 16 moulding of die cavity portion, promptly be generally called demoulding action;

Described again ejecting structure 13 needs with a fixture 172 socket part 171 and pole 131 to be fixed use, and described pole 131 is to separate manufacturing with socket part 171, make pole 131 that an error be arranged when making, and described socket part 171 has an error when making, therefore, when pole 131 is used with socket part 171 assemblings, both errors own are with superimposed, it is so-called cumulative limit, this cumulative limit will cause ejecting structure 13 when ejecting optical mirror slip, easily make the optical mirror slip that completes impaired, also make simultaneously the more difficult grasp of manufacturing precision of optical mirror slip, cause the optical mirror slip yields lower, moreover, during mold actions because of pressure or other mechanical factor, to cause ejecting structure 13 to move forward and backward distance differs, for example: an ejecting structure 13 1 unit that advances, and another ejecting structure 13 is because of error 0.9 unit that only advances, both have the error of 0.1 unit, and then make that movable piston die 132 tilts toward one side in male die seat 15, mutual friction is impaired mutually with male die seat 15 and make piston die 132 front ends, and the optical mirror slip that also causes ejecting structure 13 to be ejected simultaneously also sustains damage, and causes the product yields to reduce;

So, how disappearance such as above-mentioned is forgone, and a kind of a kind of improved purpose that is used to make the die ejecting structure of optical mirror slip of not having cumulative limit and a flexible is provided, be the place of the technical difficulties that this case utility model designer institute desire solves.

Summary of the invention

Main purpose of the present utility model is promptly providing a kind of improved die ejecting structure that is used to make optical mirror slip, rely on pole to go up set buffer part, to increase the toughness of pole, make ejecting structure that mold actions the causes disappearance on one side that tilts, can offset compensation by the buffer part of pole earlier, and make the knock pin front end still keep vertical, solving existing ejecting structure simultaneously need rely on a socket part to be attached on the mould, and cause integral body that the disappearance of one cumulative limit generation is arranged, and then promote the yields and the precision of optical mirror slip widely.

For achieving the above object, the technical solution adopted in the utility model is:

A kind of improved die ejecting structure that is used to make optical mirror slip, it is characterized in that, it comprises: a male model cover, be arranged with a ball axle sleeve and a knock pin in the described male model cover, described knock pin connects a pole by a piston die and forms, and described pole is provided with more than one buffer part, and the external diameter of described buffer part is less than the external diameter of pole; One master mold cover, described master mold cover and the corresponding setting of male model cover.

Compared with prior art, adopt the advantage that the utlity model has of technique scheme to be:

Prior art:

1, cumulative limit is arranged.

2, precision is difficult grasps.

3, the product yields is low.

When 4, ejecting structure tilted on one side, the piston die overlapped mutual friction mutually with male model and impaired.

The utility model advantage:

1, no cumulative limit.

2, precision is good.

3, product yields height.

4, can prevent that the knock pin front end from tilting on one side, and impaired mutually with the friction of male model cover.

Description of drawings

Fig. 1 is the cross-sectional schematic of existing ejecting structure when being applied on the mould;

Fig. 2 is a stereogram of the present utility model;

Fig. 3 is an exploded view of the present utility model;

Action schematic diagram when Fig. 4 is the utility model inclination;

Fig. 5 is the cross-sectional schematic of the utility model when being applied on the mould.

Description of reference numerals: 1-mould; The 11-patrix; The 12-counterdie; The 13-ejecting structure; 131-pole; 132-piston die; 133-ball axle sleeve; The 14-female die seat; The 15-male die seat; 16-die cavity portion; 17-ejects template; The 171-socket part; The 172-fixture; The 2-mould; The 21-patrix; The 22-counterdie; 23-ejects template; The 231-pad; The 232-screw tightening; 31-master mold cover; 32-male model cover; 33-ball axle sleeve; The 34-knock pin; 341-piston die; 342-pole; The 3421-buffer part; 3422-screw 343-liner; 35-die cavity portion.

The specific embodiment

For the effect that makes convenient simple and direct understanding other features of the present utility model of your auditor and advantage and reached can more manifest, with the utility model conjunction with figs., be described in detail as follows now:

See also Fig. 2, shown in Figure 3, the utility model provides a kind of improved die ejecting structure that is used to make optical mirror slip, and it comprises:

One male model cover 32, be arranged with a ball axle sleeve 33 and a knock pin 34 in the described male model cover 32, described knock pin 34 connects a pole 342 by a piston die 341 and forms, and described piston die 341 is provided with a liner 343 with pole 342 junctions, described again pole 342 is provided with more than one buffer part 3421, the external diameter of described buffer part 3421 is less than the external diameter of pole 342, and described again pole 342 tail ends are provided with screw 3422;

One master mold cover 31, described master mold cover 31 and male model overlap 32 corresponding settings, and form die cavity portion 35 between the two;

See also shown in Figure 5ly, when the utility model was applied to mould 2, described master mold cover 31 was located in the patrix 21, and described male model cover 32 is then established

In

counterdie

22,34 screws 3422 of described knock pin with pole 342 tail ends, cooperate corresponding pad 231 and screw tightening 232, and be fixed on the ejecting on the template 23 of counterdie 22, rely on liquid mirror body stock to inject in the die cavity portion 35 of master mold cover 31 and male model cover 32 given shapes that both form in addition, and again according to keeping a period of time aftershaping optical mirror slip under specified pressure and the temperature, again patrix 21 and counterdie 22 are separated, and rely on and to eject template 23 and drive knock pins 34 and advance, and eject optical mirror slip after the shaping, please cooperate again consult shown in Figure 4, the pole 342 of knock pin 34 of the present utility model again is provided with buffer part 3421, and described buffer part 3421 external diameters are less than pole 342 external diameters, and the toughness of lifting pole 342 integral body, therefore, if cause knock pin 34 forward travel distances to differ when mould 2 actions, and make when knock pin 34 past a certain inclinations are oblique, the toughness that can rely on buffer part 3421 and pole 342, make 342 second half sections of pole can follow slope compensation, and make knock pin 34 front ends still can keep ejecting point-blank optical mirror slip, can prevent also simultaneously that knock pin 34 front ends are because of tilting on one side, and overlap 32 mutual friction mutually with male model, the disappearance of the damage of the mould that causes 2 produces, and rely on the pole 342 of knock pin 34 of the present utility model to be formed in one, and directly be attached at and eject on the template 23, and can solve the disappearance that has a cumulative limit to produce when existing structure uses, and then promote the yields and the precision of the utility model optical mirror slip widely, and then reach a kind of improved purpose that is used to make the die ejecting structure of optical mirror slip.

More than explanation is just illustrative for the utility model, and it is nonrestrictive, those of ordinary skills understand, under the situation of the spirit and scope that do not break away from claim and limited, can make many modifications, variation or equivalence, but but all will fall within the claim restricted portion of the present utility model.

Claims

1, a kind of improved die ejecting structure that is used to make optical mirror slip is characterized in that it comprises:

One male model cover is arranged with a ball axle sleeve and a knock pin in the described male model cover, and described knock pin connects a pole by a piston die and forms, and described pole is provided with more than one buffer part, and the external diameter of described buffer part is less than the external diameter of pole;

One master mold cover, described master mold cover and the corresponding setting of male model cover.

2, the improved die ejecting structure that is used to make optical mirror slip according to claim 1 is characterized in that: its pole tail end of knock pin in the described male model cover is provided with screw.

3, the improved die ejecting structure that is used to make optical mirror slip according to claim 1 is characterized in that: described master mold cover forms die cavity portion between the two with the male model cover.

4, the improved die ejecting structure that is used to make optical mirror slip according to claim 1 is characterized in that: its piston die of knock pin and pole junction in the described male model cover are provided with liner.