CN202781732U - Ejection mechanism for injection molding mold - Google Patents
Ejection mechanism for injection molding mold Download PDFInfo
- Publication number
- CN202781732U CN202781732U CN 201220472406 CN201220472406U CN202781732U CN 202781732 U CN202781732 U CN 202781732U CN 201220472406 CN201220472406 CN 201220472406 CN 201220472406 U CN201220472406 U CN 201220472406U CN 202781732 U CN202781732 U CN 202781732U
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- cylindrical shell
- sleeve
- ejection
- ejects
- plate
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Abstract
The utility model discloses an ejection mechanism for an injection molding mold. The ejection mechanism comprises a sleeve base mounted on a male mold ejection plate and a sleeve body arranged on the sleeve base, wherein a shaft hole for mounting a shaft pin is formed in the sleeve body, the sleeve body is a double-section sleeve body, the double-section sleeve body comprises a movable cylinder body and an ejection cylinder body, which are connected with the base, a conical connecting body with gradually reduced outer diameter is adopted at the joint of the ejection cylinder body and the movable cylinder body, the movable cylinder body is arranged in a male mold plate, the outer diameter of the ejection cylinder body is smaller than that of the movable cylinder body, and the inner diameter of the ejection cylinder body is equivalent to that of the movable cylinder body. According to the ejection mechanism disclosed by the utility model, the double-section sleeve is adopted, due to the different outer diameters, when the double-section sleeve is used for ejection, a molded product is ejected by the end surface of the sleeve, the double-section sleeve has the uniform ejection force acted on the molded product, then mold stripping can be ensured, the ruptures of the molded product can be reduced, the appearance of the molded product further has no residual ejection trace, and the ejection mechanism further has the advantages of simple and reasonable structure and high stability, and can avoid the rupture, the scratches and other mold stripping faults of the molded product.
Description
Technical field
The utility model relates to a kind of ejector member of ejection shaping mould, what be specifically related to is a kind of ejection shaping mould ejecting mechanism structure.
Background technology
Injection molding is changeable with the structure of mould, different gate forms, different pushing methods and different mould structures, just can form various types of mold form, so it is rather difficult that wish is clearly classified mould, hereby in general common classification mode, can simply distinguish according to mold structure. double-plate mould, shree plates mold mould, runnerless mould tool and back flowing mold.This mould is when the injection molding product, and it is complete to penetrate action, and filling then forms the work that product eject after the material cooled of formingspace is solidified, and this moment, fixation side and the drawer at movable side of forming machine were opened stroke, and mould starts as the boundary take die joint and opens.Usually be fixed in the mould of movable plate, drawer at movable side and movable plate retreat simultaneously, and then the knock-pin of mat forming machine makes the ejecting mechanism start of mould, and formed products is ejected.In order to improve injection molding efficient, improve the formed products quality, the easily rapidly demoulding, eject, and reach automation mechanized operation, not only formed products is annotated, the demoulding of runner, ejecting all must the most appropriate method of selection.
Formed products eject the shape that depends on moulding material, formed products, the structure of mould, when ejecting, preferably do not break, scratch etc., and really the demoulding and fault are few, yet what fault was maximum in the existing mold is ejecting mechanism, as knock pin fracture, crooked, block etc., must be able to study for a second time courses one has flunked easily or change, this is the principle that determines extrusion method.The main purpose that formed products ejects is to make the formed products break away from moulds that shrinks the heart type that is bonded to, dark rib, protruding hub etc. because being shaped, thereby must select to eject the position in the large place of ejection resistance, but the formed products of same shape is also selected different extrusion methods because of the outward appearance, precision, the formability that require.
The utility model content
For the deficiency that exists on the prior art, the utility model purpose is to be to provide a kind of Stability Analysis of Structures, the ejecting force even action, the ejection shaping mould ejecting mechanism that ejects by ejecting sleeve end face, can guarantee the demoulding, reduce formed products and break, avoided that formed products is residual in appearance to eject vestige and existing knock pin fractures, crooked, the generation of the phenomenon such as blocking.
To achieve these goals, the utility model is to realize by the following technical solutions:
The ejection shaping mould ejecting mechanism, it comprises the male model fixed head, be arranged on the lower liftout plate on the male model fixed head, be arranged on upper ejector plate and the male model plate that is arranged on the upper ejector plate on the lower liftout plate, be provided with male die core at described male model plate, be provided with die cavity on the described male die core, it is characterized in that, on the described male model fixed head guide pins is set, be provided be used to the binodal that ejects formed products at described upper ejector plate and eject sleeve, described binodal ejects that sleeve passes the male model plate and male die core extends in the die cavity, be provided with guide pins in described binodal sleeve, described guide pins is fixed on the male model fixed head.
Described binodal ejects sleeve and comprises the base that is fixed on upper ejector plate, is arranged on the movable cylindrical shell on the base and is arranged on the cylindrical shell that ejects on the movable cylindrical shell, what adopted the described junction that ejects cylindrical shell and movable cylindrical shell is the taper connection body that external diameter successively decreases, described taper connection body is arranged in the male model plate, the described external diameter of cylindrical shell that ejects is less than the external diameter of movable cylindrical shell, and the described internal diameter that ejects cylindrical shell equates with the internal diameter of movable cylindrical shell.
Spacing between described taper connection body and the male die core is 3-7mm, and it is as ejection stroke; The described barrel thickness that ejects cylindrical shell is 0.6-0.8mm.
According to described ejection shaping mould ejecting mechanism, wherein, the barrel thickness of described movable cylindrical shell is 1-1.4mm.
According to described ejection shaping mould ejecting mechanism, wherein, the length of described movable cylindrical shell is less than the length that ejects cylindrical shell.
The utility model is by adopting binodal to eject sleeve, and by guide pins do guiding to, make it adopt sleeve end face to eject formed products, solved that existing knock pin fractures, crooked, the generation of the phenomenon such as blocking; It has uniform ejecting force and acts on formed products, can guarantee the demoulding, reduces formed products and breaks, and make the in appearance not residual vestige that ejects of formed products, and it is simple and reasonable for structure, and stability is high, has avoided the demoulding faults such as formed products breaks, scratch.
Description of drawings
Describe the utility model in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is structural representation of the present utility model.
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with the specific embodiment, further set forth the utility model.
Referring to Fig. 1, the ejection shaping mould ejecting mechanism of present embodiment, it is applied in the ejection shaping mould, this ejection shaping mould comprises male model and master mold, the sleeve that ejects of present embodiment is installed in the male model, and male model comprises male model fixed head 1, is installed in lower liftout plate 2 on the male model fixed head 1, is installed in upper ejector plate 3 on the lower liftout plate 2, is installed in the male model plate 5 of upper ejector plate 3 tops and is arranged on male die core 6 on the male model plate 5, is provided with die cavity 9 on this male die core.
In the present embodiment, be provided with between upper ejector plate 3 and the male model plate 5 and eject spacing 3, be convenient to the movement of upper and lower liftout plate.At upper ejector plate 4 binodal is installed and ejects sleeve 8, in binodal ejects sleeve 8, be equipped with and be fixed on male model and fix, guide pins 7 on 1, this binodal ejects sleeve 8 and comprises the base 81 that is fixed on upper ejector plate 3, is arranged on the movable cylindrical shell 82 on the base 81 and is arranged on and eject cylindrical shell 84 on the movable cylindrical shell 82, what adopted the described junction that ejects cylindrical shell 84 and movable cylindrical shell 82 is the taper connection body 83 that external diameter successively decreases, described taper connection body 83 is arranged in the male model plate 5, spacing between itself and the male die core 6 is 3-7mm, consists of ejection stroke.The described external diameter of cylindrical shell 84 that ejects is less than the external diameter of movable cylindrical shell 82, and the described internal diameter that ejects cylindrical shell 84 equates with the internal diameter of movable cylindrical shell 82.
Eject cylindrical shell 84, taper connection body 83, movable cylindrical shell 82 and base 81 and be integral structure, be provided with in it and be convenient to the axis hole that guide pins is passed.In the present embodiment, the described barrel thickness that ejects cylindrical shell 84 is 0.6-0.8mm, and the barrel thickness of movable cylindrical shell 82 is 1-1.4mm.The processability of sleeve (sleeve) is good, reaches consideration use sleeve more than 0.8 at wall thickness during design, and pin is less than φ 1.5mm in the smallclothes, and sleeve is done binodal, and large part sleeve is that the quill sidewall can not be less than 1mm.
When the cylinder (BOSS) that penetrates the finished product protrusion, the post center is porose, ejecting the position is difficult for selecting, can use knock pin to be installed on the bottom plate as the heart type pin this moment, and do not eject effect, and select again the suitable sleeve that ejects, be placed on the heart type pin, be fixed in lower roof plate, utilize binodal to eject sleeve finished product is ejected.
The utility model is by adopting binodal to eject sleeve 8, and by guide pins 7 do guiding to, make it adopt sleeve end face to eject formed products, solved that existing knock pin fractures, crooked, the generation of the phenomenon such as blocking; It has uniform ejecting force and acts on formed products, can guarantee the demoulding, reduces formed products and breaks, and make the in appearance not residual vestige that ejects of formed products, and it is simple and reasonable for structure, and stability is high, has avoided the demoulding faults such as formed products breaks, scratch.
More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (6)
1. ejection shaping mould ejecting mechanism, it comprises the male model fixed head, be arranged on the lower liftout plate on the male model fixed head, be arranged on upper ejector plate and the male model plate that is arranged on the upper ejector plate on the lower liftout plate, be provided with male die core at described male model plate, be provided with die cavity on the described male die core, it is characterized in that, on the described male model fixed head guide pins is set, be provided be used to the binodal that ejects formed products at described upper ejector plate and eject sleeve, described binodal ejects that sleeve passes the male model plate and male die core extends in the die cavity, be provided with guide pins in described binodal sleeve, described guide pins is fixed on the male model fixed head.
2. ejection shaping mould ejecting mechanism according to claim 1, it is characterized in that, described binodal ejects sleeve and comprises the base that is fixed on upper ejector plate, is arranged on the movable cylindrical shell on the base and is arranged on the cylindrical shell that ejects on the movable cylindrical shell, what adopted the described junction that ejects cylindrical shell and movable cylindrical shell is the taper connection body that external diameter successively decreases, described taper connection body is arranged in the male model plate, the described external diameter of cylindrical shell that ejects is less than the external diameter of movable cylindrical shell, and the described internal diameter that ejects cylindrical shell equates with the internal diameter of movable cylindrical shell.
3. ejection shaping mould ejecting mechanism according to claim 2 is characterized in that, the spacing between described taper connection body and the male die core is 3-7mm.
4. ejection shaping mould ejecting mechanism according to claim 2 is characterized in that, the described barrel thickness that ejects cylindrical shell is 0.6-0.8mm.
5. ejection shaping mould ejecting mechanism according to claim 2 is characterized in that, the barrel thickness of described movable cylindrical shell is 1-1.4mm.
6. ejection shaping mould ejecting mechanism according to claim 1 is characterized in that, the length of described movable cylindrical shell is less than the length that ejects cylindrical shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220472406 CN202781732U (en) | 2012-09-17 | 2012-09-17 | Ejection mechanism for injection molding mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220472406 CN202781732U (en) | 2012-09-17 | 2012-09-17 | Ejection mechanism for injection molding mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202781732U true CN202781732U (en) | 2013-03-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220472406 Expired - Fee Related CN202781732U (en) | 2012-09-17 | 2012-09-17 | Ejection mechanism for injection molding mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202781732U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104002442A (en) * | 2014-05-09 | 2014-08-27 | 勋龙精密模具(昆山)有限公司 | Ejector sleeve ejection mechanism |
-
2012
- 2012-09-17 CN CN 201220472406 patent/CN202781732U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104002442A (en) * | 2014-05-09 | 2014-08-27 | 勋龙精密模具(昆山)有限公司 | Ejector sleeve ejection mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20130917 |