CN103934965A

CN103934965A - Injection mould provided with push plate ejection mechanism

Info

Publication number: CN103934965A
Application number: CN201410132541.XA
Authority: CN
Inventors: 葛益军
Original assignee: SUZHOU YIQUN PRECISION CO Ltd
Current assignee: SUZHOU YIQUN PRECISION CO Ltd
Priority date: 2014-04-03
Filing date: 2014-04-03
Publication date: 2014-07-23

Abstract

The invention discloses an injection mould provided with a push plate ejection mechanism. The injection mould comprises a fixed mould, a movable mould, a mold core and a mould base part, wherein the mould base part comprises a movable base plate, a fixed base plate and a mold cavity plate; the mould base part also comprises a push rod, a reset rod, a material hooking rod, a guide pillar, an ejector rod fixing plate, a guide sleeve, an ejector rod base plate, a stop screw, a bushing, a stripper plate, a fixed plate, a support plate, a movable guide pillar, a support block, a limiting guide pillar, a limiting rod, a stop pin, a sprue bush and a support plate; a push plate is used for ejecting an ejection part of the injection mould; the push rod is connected with the stripper plate; the stripper plate is in clearance fit with the mold core; the ejection distance of the push plate is not larger than the effective guide length of the guide pillar. The injection mould has the beneficial effects that the ejection mechanism of the injection mould is especially suitable for a plastic part with a deep cavity and a thin wall, and the ejection trace is not generated.

Description

A kind of injection mold with ejecting push plate mechanism

Technical field

The present invention relates to automobile injection mold field, particularly relate to a kind of injection mold with ejecting push plate mechanism.

Background technology

Ejecting mechanism is the element of mould, be divided into manually according to type of drive eject, motor-drivenly eject, pneumatic ejecting, can be divided into once by mould structure eject, Double-ejection, screw thread eject, special ejecting, the factor that affects ejecting force is mainly plastic package power after cooling curing in mould.The demoulding should be tried one's best simply, and ejecting mechanism operated by rotary motion is in dynamic model one side, to eject smoothly.While ejecting and the contact-making surface of plastic should be plastic inner surface or other background, and liftout attachment is uniformly distributed, ejecting force acts on the position of plastic holding capacity maximum, to ensure plastic outward appearance, prevents distortion.

Ejecting mechanism developing direction is to steadily, without clamping stagnation, simplifies future development.

Summary of the invention

The invention provides a kind of simple ejecting mechanism, steadily reliable, take push rod mode.

A kind of injection mold with ejecting push plate mechanism, comprise cover half, dynamic model, core, molded base part, wherein molded base part comprises moving seat board, reservation plate, cavity plate, also comprise push rod at molded base part, release link, hook material bar, guide pillar, the solid top board of push rod, guide pin bushing, push rod backing plate, retaining screw, edge cover, push piece plate, fixed head, support plate, moving guide pillar, rest pad, spacing guide pillar, gag lever post, backing pin, sprue bush, supporting plate, the part that ejects of described injection mold adopts ejecting push plate, push rod connects push piece plate, between push piece plate and core, adopt matched in clearance, i.e. flash overlap not, can better locate again, ejecting apart from effective guiding length that must not be greater than guide pillar of push pedal, the head of described push pedal does the processing of hardening, described core is polishing structure, avoid wedge angle, core arranges mold insert, core is identical with push pedal shape, and be slidably matched, while ejecting, top board is along the translation of core periphery, described ejecting mechanism arranges release link, when matched moulds, release link drives ejecting mechanism to reset under active force.

A kind of preferred version, described push pedal head is T-shaped, the fixed screw size that push pedal is T-shaped is M6, described push rod is the split type push rod of round bar, and push rod is connected with push piece plate, and described push rod is steel material, and through Overheating Treatment, strengthen push rod diameter, push pedal is simultaneously arranged with spline limit.

The invention has the beneficial effects as follows: ejecting mechanism is specially adapted to dark chamber, Thin Wall Plastic Parts plastic as complicated in housing, cylindrical member etc., can not produce and eject vestige.

Brief description of the drawings

Fig. 1 is existing ejecting structure schematic diagram;

Fig. 2 is the structural representation of a kind of injection mold with ejecting push plate mechanism of the present invention;

In accompanying drawing, the mark of each parts is as follows:

Structural representation in Fig. 1

Wherein 1 is push rod, and 2 is release link, and 3 is hook material bar, and 4 is guide pillar, 5 is the solid top board of push rod, and 6 is guide pin bushing, and 7 is push rod backing plate, and 8 is retaining screw, 9 is edge cover, and 10 is push piece plate, and 11 is core, and 12 is fixed head, 13 is support plate, and 14 is moving guide pillar, and 15 is rest pad, and 16 is spacing guide pillar, 17 is gag lever post, and 18 is backing pin, and 19 is moving seat board, and 20 is sprue bush, 21 is supporting plate, and 22 is reservation plate, and 23 is cavity plate.

Detailed description of the invention

Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that, protection scope of the present invention is made to more explicit defining.

Refer to Fig. 1 and Fig. 2, the embodiment of the present invention comprises:

A kind of injection mold with ejecting push plate mechanism, comprise cover half, dynamic model, core 11 and molded base part, wherein molded base part comprises moving seat board 19, reservation plate 22, cavity plate 23, also comprise push rod 1 at molded base part, release link 2, hook material bar 3, guide pillar 4, the solid top board 5 of push rod, guide pin bushing 6, push rod backing plate 7, retaining screw 8, edge cover 9, push piece plate 10, fixed head 12, support plate 13, moving guide pillar 14, rest pad 15, spacing guide pillar 16, gag lever post 17, backing pin 18, sprue bush 20, supporting plate 21, the part that ejects of described injection mold adopts push piece plate 10 to eject, push rod 1 connects push piece plate 10, between push piece plate 10 and core 11, adopt matched in clearance, i.e. flash overlap not, can better locate again, ejecting apart from effective guiding length that must not be greater than guide pillar 4 of push piece plate 10, the head of described push piece plate 10 does the processing of hardening, described core 11 is polishing structure, avoid wedge angle, core arranges mold insert, core is identical with push pedal shape, and be slidably matched, while ejecting, push piece plate is along core 11 periphery translations, described ejecting mechanism arranges release link 2, when matched moulds, release link 2 drives ejecting mechanism to reset under active force.

A kind of preferred version, described push pedal head is T-shaped, push piece plate is connected with push rod with fixed screw, fixed screw size is M6, and described push rod is the split type push rod of round bar, and push rod is connected with push piece plate, described push rod is steel material, and through Overheating Treatment, strengthen push rod diameter, push pedal is simultaneously arranged with spline limit.

The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes description of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.

Claims

1. the injection mold with ejecting push plate mechanism, it is characterized in that, described injection mold comprises cover half, dynamic model, core, molded base part, wherein molded base part comprises moving seat board, reservation plate, cavity plate, also comprise push rod at molded base part, release link, hook material bar, guide pillar, the solid top board of push rod, guide pin bushing, push rod backing plate, retaining screw, edge cover, push piece plate, fixed head, support plate, moving guide pillar, rest pad, spacing guide pillar, gag lever post, backing pin, sprue bush, supporting plate, the part that ejects of described injection mold adopts ejecting push plate, push rod connects push piece plate, between push piece plate and core, adopt matched in clearance, ejecting apart from effective guiding length that must not be greater than guide pillar of push pedal, the head of described push pedal does the processing of hardening, described core is polishing structure, core arranges mold insert.

2. a kind of injection mold with ejecting push plate mechanism according to claim 1, it is characterized in that described push pedal head is T-shaped, the fixed screw size that push pedal is T-shaped is M6, described push rod is the split type push rod of round bar, push rod is connected with push piece plate, described push rod is steel material, and through Overheating Treatment, push pedal bottom is provided with spline limit.