CN202186025U

CN202186025U - Simple ejection and compulsive-demoulding mechanism of injection mould

Info

Publication number: CN202186025U
Application number: CN2011202454481U
Authority: CN
Inventors: 刘闯
Original assignee: SHENZHEN MAXUNI TECHNOLOGY Co Ltd
Current assignee: SHENZHEN MAXUNI TECHNOLOGY Co Ltd
Priority date: 2011-07-12
Filing date: 2011-07-12
Publication date: 2012-04-11
Anticipated expiration: 2021-07-12

Abstract

The utility model discloses a simple ejection and compulsive-demoulding mechanism of an injection mould, which comprises a bottom plate, an ejector base plate and an ejector retainer plate. The ejection and the compulsive demoulding of a forming ejector pin are achieved in virtue of elastic force, the ejection of the forming ejector pin is realized through a spring, the strength of the force can be achieved by selecting different types of springs or adjusting the amount of compression, and the forming ejector pin is pressed by an ejector plate to reliably return. The simple ejection and compulsive-demoulding mechanism of the injection mould has the characteristics of simplicity and convenience in mounting, smoothness in running, small occupied area, simple manufacture process, low probability of damage and the like, is simplified in structure, avoids the circumstances of straining a product due to compulsive-demoulding failure or damaging the mould due to return failure, is simple in later maintenance and reduces the cost.

Description

Injection mold ejects and takes off simple mechanism by force

Technical field

The utility model relates to the injection mold field, is specifically related to injection mold and ejects and take off simple mechanism by force.

Background technology

In the injection mold field, department tube ejects and to take off application by force quite extensive, and department's tube ejects easy damage, changes inconveniently, and standard department tin can not satisfy all situations simultaneously; This situation can only be made nonstandard department tube, perhaps need not take charge of tube and eject and change alternate manner and eject, and using alternate manner instead, not have its department's tube to eject form certainly good, or complex structures all; Increase cost, can occur some simultaneously and push up white top distortion situation, the nonstandard department tube customization cycle is long, and buying is inconvenient; At strong off-square face, a lot of structures are arranged, but structure takes up room greatly the cost height; Maintenance needs form removal, may occur taking off situation such as inefficacy, return inefficacy by force, makes troubles to production.

The utility model content

The problem that the utility model will solve provide a kind of simple in structure, easy for installation, mechanism kinematic smoothly injection mold eject and take off simple mechanism by force, eject with the moulding thimble and realize ejecting of mould with moulding thimble return and take off by force.

For addressing the above problem, the utility model is realized through following scheme: injection mold ejects and takes off simple mechanism by force, and it comprises base plate, end needle plate and face needle plate composition; Needle plate of the said end and base plate respectively have hole slot, and this hole slot is corresponding each other, are connected with sleeve between this end needle plate and the base plate and fix; This sleeve below is provided with pressing plate; Be fixed with spring above the said pressing plate, wrap up backing plate around this spring, entangle fixing outside the said backing plate by sleeve; The moulding thimble is withstood in said spring upper end, and said moulding thimble is ejected and strong stripper member by the elastic force effect generation of spring.

Said backing plate top is placed with the return piece, and this return piece is the moulding thimble fixedly.

Be fixed with thimble on the needle plate of the said end, said thimble is located at the both sides of moulding thimble.

Said moulding thimble passes end needle plate and face needle plate.

The utility model has solved bad use department tube and has ejected, employing be to utilize elastic force that the moulding thimble is ejected by force to take off, ejecting by spring of moulding thimble realizes that the size of strength can select different model spring or adjustment decrement to realize; The return of moulding thimble pushes back the position by ejector retainner plate, and return is reliable, and the utility model is installed simple, the convenient installation; Characteristics such as mechanism kinematic is smooth and easy, and it is little to take up room, and manufacture craft is simple, and is not fragile; Avoid that the top is white, top distortion, position of bone crack conditions, solve the bad problem that ejects, bring convenience to production; At strong off-square face, simplify the structure, can not occur taking off by force losing efficacy and pull product; The return mould situation of damaging that lost efficacy, simple aspect the safeguarding of later stage, reduce cost.

Description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is the utility model mould structure sketch map.

Wherein: 1, base plate, 2, end needle plate, 3, the face needle plate, 4, spring, 5, pressing plate, 6, sleeve, 7, backing plate, 8, the return piece, 9, the moulding thimble, 10, thimble, 11, mould.

The specific embodiment

Below be to combine the specific embodiment and description of drawings that the utility model is done further description:

Like Fig. 1, shown in Figure 2, injection mold ejects and takes off simple mechanism by force, and it comprises base plate 1, end needle plate 2 and face needle plate 3 compositions; End needle plate 2 respectively has hole slot with base plate 1, and this hole slot is corresponding each other, is connected with sleeve 6 between this end needle plate 2 and the base plate 1 and fixes; These sleeve 6 belows are provided with pressing plate 5, are fixed with spring 4 above the pressing plate 5, wrap up backing plate 7 around this spring 4; Backing plate 7 is entangled fixing outward by sleeve 6, moulding thimble 9 is withstood in spring 4 upper ends, and moulding thimble 9 is ejected and strong stripper member 11 by the elastic force effect generation of spring 4; Backing plate 7 tops are placed with return piece 8, and this return piece 8 is moulding thimble 9 fixedly, is fixed with thimble 10 on the end needle plate 2; Thimble 10 is located at the both sides of moulding thimble 9, and moulding thimble 9 passes end needle plate 2 and face needle plate 3

Embodiment one: as shown in Figure 1, when ejecting, thimble and ejector retainner plate upwards eject product, and the moulding thimble is under the effect of spring force; Can upwards ejecting simultaneously with ejector retainner plate, eject a segment distance after, product post position breaks away from die cavity, be shaped this moment thimble sleeve spacing down; Can not upwards eject, ejector retainner plate continues upwards to eject, and the moulding thimble breaks away from product; Up to ejecting completion, guaranteed to eject smoothly, obtain high quality of products; During return, ejector retainner plate pushes back a piece and makes moulding thimble return, and mould ejects revert action and accomplishes.

Embodiment two: as shown in Figure 2, when ejecting, thimble and ejector retainner plate upwards eject product, and the moulding thimble is under the effect of spring force; Can upwards ejecting simultaneously with ejector retainner plate, eject a segment distance after, product post position breaks away from die cavity, just has around the product to take off by force to let bit space; The thimble that is shaped this moment can not upwards eject down the spacing of sleeve, and ejector retainner plate continues upwards to eject, and the moulding thimble is motionless; Product continues upwards to eject, thereby lets product force to break away from, up to ejecting completion, guaranteed to eject smoothly; Obtain high quality of products, during return, ejector retainner plate pushes back a piece and makes moulding thimble return, and mould ejects revert action and accomplishes.

Claims

1. injection mold ejects and takes off simple mechanism by force, it is characterized in that: it comprises base plate (1), end needle plate (2) and face needle plate (3) composition, and needle plate of the said end (2) respectively has hole slot with base plate (1); This hole slot is corresponding each other; Be connected fixingly between this end needle plate (2) and the base plate (1) with sleeve (6), this sleeve (6) below is provided with pressing plate (5), is fixed with spring (4) above the said pressing plate (5); Wrap up backing plate (7) around this spring (4); Said backing plate (7) is outer to be entangled fixingly by sleeve (6), moulding thimble (9) is withstood in said spring (4) upper end, and said moulding thimble (9) is produced by the elastic force effect of spring (4) and ejects and strong stripper member (11).

2. injection mold according to claim 1 ejects and takes off simple mechanism by force, it is characterized in that: said backing plate (7) top is placed with return piece (8), and this return piece (8) is moulding thimble (9) fixedly.

3. injection mold according to claim 1 ejects and takes off simple mechanism by force, it is characterized in that: be fixed with thimble (10) on the needle plate of the said end (2), said thimble (10) is located at the both sides of moulding thimble (9).

4. injection mold according to claim 1 ejects and takes off simple mechanism by force, it is characterized in that: said moulding thimble (9) passes end needle plate (2) and face needle plate (3).