CN201023288Y

CN201023288Y - Liftout mechanism

Info

Publication number: CN201023288Y
Application number: CNU2007200334417U
Authority: CN
Inventors: 马升仓
Original assignee: Mitac Precision Technology Kunshan Ltd
Current assignee: Mitac Precision Technology Kunshan Ltd
Priority date: 2007-01-06
Filing date: 2007-01-06
Publication date: 2008-02-20
Anticipated expiration: 2017-01-06

Abstract

A driven out mechanism is used for driving out the products separating from the oxen and master molds, wherein the driven out mechanism comprises a set of top plates which are arranged in the top plate groove formed by the master mold nut depression, wherein the top plate comprises at least a spacing step hole used for threading screws, driven out springs which are sheathed on the screws are contained in the spring holes which are formed by the extending and depression of the top plate groove, and also a retracting pin is actively held in the retracting pin hole of the oxen mold nut, wherein one end of the retracting pin is top to the top plate, and the other end thereof negotiates with the retracting spring which is taken in a spring groove which is formed by bottom depression of the retracting pin hole. The utility model utilizes the simple springs to replace the complex thimble and jacking block mechanism, which simplifies the mode structure, and depresses the mode cost.

Description

Ejecting mechanism

[technical field]

The relevant a kind of ejecting mechanism of the utility model, especially a kind of mechanism that ejects the male and female die of thermoplastic product disengaging mould.

[background technology]

In the process of mould design; run into some special plastic molded products (as: Transparent Parts) through regular meeting, high especially to appearance requirement, necessary no thimble vestige; the back cutter trade can not appear; conventional design is to adopt the jacking block top board to eject, and so just make the very complicated of mould structure change: it comprises upper and lower liftout plate, foot pad at least; bottom plate; therefore increase Mould design time and machining period, influence die quality and die trial time, and then die cost is improved.

In view of above-mentioned, be necessary to develop a kind of ejecting mechanism simple in structure, eject plastic cement products and break away from the male and female die.

[summary of the invention]

Therefore, the purpose of this utility model promptly provides a kind of ejecting mechanism, ejects plastic cement products and breaks away from the male and female die, in order to solve the baroque problem that mould uses the jacking block top board to be brought in the prior art.

For reaching above-mentioned purpose, the utility model provides a kind of ejecting mechanism, eject product and break away from the male and female die, wherein, this ejecting mechanism comprises that one is mounted on the interior top board of top board groove that this mother module core is recessed to form, this top board comprises at least one limited step hole, and in order to wearing screw, and sheathed ejector spring compression is located in by this top board groove and extends in the spring eye of depression on this screw; And a return pin, activity is contained in the return pin-and-hole of this male model benevolence, and the one end peaks at above-mentioned top board, other end negotiation return spring, and this return spring is contained in the spring groove that this return pin-and-hole bottom notch becomes.

Compared to prior art, the simple spring of ejecting mechanism utilization of the present utility model has replaced complicated thimble jacking block mechanism, promptly replaced the ejecting force of moulding board with spring force, saved the lower roof plate ejecting mechanism (comprising upper and lower liftout plate, foot pad, bottom plate) of going up of the prior art, simplify mould structure, reduce Mould design time and machining period, shorten opening period, reduce die cost.

For making the purpose of this utility model, structural feature and function thereof there are further understanding, cooperate diagram to be described in detail as follows now:

[description of drawings]

Fig. 1 is that ejecting mechanism of the present utility model is in the matched moulds state diagram.

Fig. 2 is ejecting mechanism of the present utility model and die, schematic diagram when template is separated.

Fig. 3 is that the utility model is in not die sinking tool state diagram fully.

Fig. 4 is that the utility model is in the state diagram of complete die sinking tool.

[specific embodiment]

Consult Fig. 1 and Fig. 2 in the lump, this ejecting mechanism is mounted between the male and

female die

7,2, wherein, this mother module core 2 comprises at least one guide pillar 23, and in order to the moving direction of this ejecting mechanism that leads, and this mother module core 2 caves inward into a top board groove 21 by die joint, the top board 3 that holds this ejecting mechanism, these top board groove 21 bottoms are extended and caved in at least one spring eye 22, and caster 1 and these spring eye 22 coaxial hearts extension depression one screws 11, and are sealed with the screw 4 of sheathed ejector spring 40; Again, this male model benevolence 7 caves inward into a return pin-and-hole 71 with this screw 11 and spring eye 22 coaxial hearts by die joint, return pin 5 is held in activity, and this return pin-and-hole 71 extends depression one spring groove 81 away from an end of die joint, in order to take in the return spring 50 that ejects return pin 5, in the present embodiment, this spring groove 81 extends to male model plate 8 by male model benevolence 7.

This ejecting mechanism comprises that one ejects the top board 3 of product 6, place in the above-mentioned top board groove 21, it comprises at least one limited step hole 32, wear a screw 4 and sealed with above-mentioned screw 11, an and sheathed ejector spring 40 on this screw 4, these ejector spring 40 compressions are located in the spring eye 22 of this mother module core 2, are used to limit the ejection stroke of top board 3; Again, the guide pillar 23 of the also corresponding above-mentioned mother module core 2 of this top board 3 is offered at least one dowel hole 31, wears for this guide pillar 23, in order to the moving direction of this top board 3 of guide-localization when matched moulds or the die sinking.Moreover, this ejecting mechanism also comprises a return pin 5, this return pin 5 is movably placed in the return pin-and-hole 71 of above-mentioned male model benevolence 7, and these return pin 5 one ends peak at the top board 3 of limited step hole 32 peripheries, the return spring 50 in the above-mentioned spring groove 81 is located in other end negotiation, be used to delay the ejection cycle of top board 3, prevent that product 6 from gluing male model benevolence 7 and being difficult for taking-up when die sinking, and the elastic force of this return spring 50 be greater than the elastic force of above-mentioned ejector spring 40.

During die sinking, consult Fig. 3, at first diastole of return spring 50, return pin 5 pass return pin-and-hole 71 and continue to head on screw 4 and the top board 3 of this screw 4 peripheries, and product 6 breaks away from male model benevolence 7 simultaneously, when treating complete die sinking (with reference to Fig. 4), return pin 5 breaks away from top board 3, ejector spring 40 diastoles, and top board 3 moves down along the direction of leading 23, this moment, product 6 disengaging mother module cores 2 negotiated until screw 4 and limited step hole 32.

During matched moulds, return pin 5 heads on top board 3, ejector spring 40 compressions, be contained in fully in the top board groove 21 until this top board 3, this moment, screw 4 was concordant with this top board 3, continued matched moulds, return pin 5 pressurizeds are return return pin-and-hole 71 gradually, and return spring 50 compressions are concordant with male model benevolence 7 until return pin 5.

In sum, the simple spring of ejecting mechanism utilization of the present utility model has replaced complicated thimble jacking block mechanism, has saved the lower roof plate ejecting mechanism of going up of the prior art, simplify mould structure, reduce Mould design time and machining period, shorten opening period, reduce die cost.

Claims

1. ejecting mechanism, the pushing tow product breaks away from the male and female die, wherein, this mother module core caves in into a top board groove, this top board groove extends and caves in at least one spring eye, and the screw coaxial with this spring eye that cave in extended in this spring eye bottom, and this male model benevolence caves in into a return pin-and-hole with the coaxial heart of this screw, and this return pin-and-hole bottom notch one spring groove, this is characterized in that: comprise

One top board is mounted in the above-mentioned top board groove, and it comprises at least one limited step hole, wears the screw of a sheathed ejector spring and sealed with above-mentioned screw, and this ejector spring compression is located in the above-mentioned spring eye;

One return pin, activity are contained in the above-mentioned return pin-and-hole, and an end peaks at above-mentioned top board, and other end negotiation is contained in the return spring in the above-mentioned spring groove.

2. ejecting mechanism as claimed in claim 1 is characterized in that: this mother module core also comprises at least one guide pillar, and this top board be to offering at least one dowel hole by guide pillar, and activity is installed with these guide pillars.

3. ejecting mechanism as claimed in claim 1 is characterized in that: this screw is recessed to form along this spring eye extension by caster.

4. ejecting mechanism as claimed in claim 1 is characterized in that: this spring groove extends to the male model plate by male model benevolence.