CN201712092U

CN201712092U - Secondary ejection and forced demolding mechanism

Info

Publication number: CN201712092U
Application number: CN2010202304348U
Authority: CN
Inventors: 赵志奎
Original assignee: Mitac Precision Technology Kunshan Ltd
Current assignee: Mitac Precision Technology Kunshan Ltd
Priority date: 2010-06-21
Filing date: 2010-06-21
Publication date: 2011-01-19
Anticipated expiration: 2020-06-21

Abstract

The utility model discloses a secondary ejection and forced demolding mechanism which is used in the production of a mold. The mold comprises a female mold, a male mold, an upper ejection plate, a lower ejection plate and a fixed plate. The secondary ejection and forced demolding mechanism comprises a demolding cotter pin, a spring and an ejector pin, wherein one end of the demolding cotter pin is clamped in the upper ejection plate, and the other end penetrates through the male mold; a limit part arranged at the end is matched with a male insert; one end of the spring is arranged in the fixed plate, and the other end penetrates through the lower ejection plate and is in contact with one end of the demolding cotter pin; the spring is in the compression state under mold clamping; one end of the ejector pin is arranged in the upper ejection plate, and the other end penetrates through the male mold. The utility model has the advantages of small occupied space of the mold, simple processing, low cost and convenient mold assembling, installing and disassembling.

Description

Secondary ejects strong off line structure

[technical field]

The utility model relates to a kind of secondary and ejects strong off line structure, particularly a kind of can strengthen cotter pilotage intensity secondary eject strong off line structure.

[background technology]

In existing mould is produced, some products often come moulding by taper pin, and the space that often needs when utilizing the cotter pilotage moulding is very big, make the mould structure complexity like this, corresponding cost will be very high, and also having a kind of method then is to come shaped article by secondary ejecting mechanism, and this kind structure makes the volume increasing of mould highly increase, the cost height, and be difficult for assembling and installation, it is as follows that existing secondary ejects strong off line structure:

Referring to figs. 1 through shown in Figure 4, existing secondary ejects strong off line structure, it is applied in the mould production, this mould comprises: caster 101, male model plate 102, first upper ejector plate 103, first time liftout plate 104, second upper ejector plate 105, second time liftout plate 106, fixed head 107 and foot pad 108, and this secondary ejects strong off line structure and comprises:

Demoulding cotter pilotage 11, one end penetrate first upper ejector plate 103, first time liftout plate 104 is located in second upper ejector plate 105, and the other end is located in the above-mentioned male model plate 102;

Thimble 12, one end penetrate first upper ejector plate 103 and are fixed on first time liftout plate 104, and the other end penetrates male model plate 102;

Shutter 13, it is located between first time liftout plate 104, second upper ejector plate 105.

In present embodiment, during die sinking, push rod 14 promotes first time liftout plate 104 motion, act on by shutter 3 between the first time liftout plate 104 of cause and second upper ejector plate 105, make second upper ejector plate 105 with second time liftout plate 106 motion, when the product place of 11 moulding of demoulding cotter pilotage breaks away from male model benevolence 1021, the limiting section 1081 of foot pad 108 and second upper ejector plate 105 interact and stop 105 motions of second upper ejector plate, and push rod 14 continues to promote first time liftout plate 104 motion, make that shutter 13 begins to separate, thimble 12 is subjected to the effect of first time liftout plate 104 to continue to eject product 109, makes product 109 force to eject at last.

Above-mentioned secondary ejects strong off line structure highly increases the increasing of mould volume, has thickeied the height of pad pin 108, should be noted that also simultaneously whether the effective travel of selected board satisfies; This mechanism has increased two liftout plates and several shutters 13 newly, thereby makes production cost improve; This mechanism is unfavorable for assembling and installs.

[summary of the invention]

In view of this, the purpose of this utility model is to provide a kind of secondary to eject strong off line structure, and this secondary ejects strong off line structure, and to take die space little, and processing is simple, and cost is low, and is convenient to assembling, installation and the dismounting of mould.

For achieving the above object, the utility model provides a kind of secondary to eject strong off line structure, and it is applied in the mould production, and this mould comprises: caster, male model plate, upper ejector plate, following liftout plate and fixed head, and this secondary ejects strong off line structure and comprises:

Demoulding cotter pilotage, the one end is arranged in the upper ejector plate, and the other end penetrates above-mentioned male model plate, and the limiting section that this end is provided with matches with male model benevolence;

Spring, the one end places the said fixing plate, and the other end penetrates down liftout plate and contacts with an end of above-mentioned demoulding cotter pilotage, and during the matched moulds state, this spring is in compressive state;

Thimble, one end are located in the above-mentioned upper ejector plate, and the other end penetrates above-mentioned male model plate;

Wherein, the distance that withdraws from that the stroke of upper ejector plate equals demoulding cotter pilotage adds that secondary ejects distance, and the distance that withdraws from of demoulding cotter pilotage needs the distance of forced stripper mechanism greater than finished product.

Compared to prior art, secondary of the present utility model ejects strong off line structure in mould is produced, and it is little to take die space, and processing is simple, and cost is low, is convenient to assembling, installation and the dismounting of mould.

For the purpose of this utility model, structural feature and function thereof are had further understanding, conjunction with figs. is described in detail as follows now:

[description of drawings]

Fig. 1 illustrates the structural representation that existing secondary ejects strong off line structure matched moulds state.

The structural representation of first state when Fig. 2 illustrates existing secondary and ejects strong off line structure die sinking.

The structural representation of second state when Fig. 3 illustrates existing secondary and ejects strong off line structure die sinking.

The structural representation of third state when Fig. 4 illustrates existing secondary and ejects strong off line structure die sinking.

Fig. 5 illustrates the structural representation that the utility model secondary ejects strong off line structure matched moulds state.

The structural representation of first state when Fig. 6 illustrates the utility model secondary and ejects strong off line structure die sinking.

The structural representation of second state when Fig. 7 illustrates the utility model secondary and ejects strong off line structure die sinking.

The structural representation of third state when Fig. 8 illustrates the utility model secondary and ejects strong off line structure die sinking.

[specific embodiment]

Extremely shown in Figure 8 with reference to Fig. 5, secondary of the present utility model ejects strong off line structure, it is applied in the mould production, and this mould comprises: caster 201, male model plate 202, upper ejector plate 203, following liftout plate 204 and fixed head 205, and this secondary ejects strong off line structure and comprises:

Demoulding cotter pilotage 21, one end are arranged in the upper ejector plate 203, and the other end penetrates above-mentioned male model plate 202, and match with male model benevolence 2021 behind a limiting section 211 move distance S1 that are provided with of this end;

Spring 22, the one end places said fixing plate 205, and the other end penetrates down liftout plate 204 and contacts with an end of above-mentioned demoulding cotter pilotage 21, and during the matched moulds state, this spring 22 is in compressive state;

Thimble 23, one end are located in the above-mentioned upper ejector plate 203, and the other end penetrates above-mentioned male model plate 202;

Wherein, the stroke S2 of upper ejector plate 203 equals withdrawing from apart from S1 of demoulding cotter pilotage 21 and adds that secondary ejects apart from S3, and demoulding cotter pilotage withdraw from apart from S1 greater than product 206 need forced stripper mechanism apart from S4.

In present embodiment, during die sinking, caster 201, male model plate 202 separate, and following liftout plate 204 drive thimbles 23 are done and ejected motion, and the spring 22 that be in compressive state this moment opens, and then promote demoulding cotter pilotage 21 and do and eject motion, when the distance of liftout plate motion is S1, stop motion after the limiting section 211 of demoulding cotter pilotage 21 contacts with male model benevolence 2021, after this, two liftout plates continue to promote thimbles 23 motions, make product 206 forced stripper mechanisms.

Claims

1. a secondary ejects strong off line structure, and it is applied in the mould production, and this mould comprises: caster, male model plate, upper ejector plate, following liftout plate and fixed head is characterized in that this secondary ejects strong off line structure and comprises: