CN102825743A - Ejection sleeve for ejection molding mold - Google Patents
Ejection sleeve for ejection molding mold Download PDFInfo
- Publication number
- CN102825743A CN102825743A CN2012103435311A CN201210343531A CN102825743A CN 102825743 A CN102825743 A CN 102825743A CN 2012103435311 A CN2012103435311 A CN 2012103435311A CN 201210343531 A CN201210343531 A CN 201210343531A CN 102825743 A CN102825743 A CN 102825743A
- Authority
- CN
- China
- Prior art keywords
- sleeve
- ejection
- cylindrical shell
- sleeve body
- ejects
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention discloses an ejection sleeve for an ejection molding mold, comprising a sleeve base and a sleeve body, wherein the sleeve base is arranged on a male-mold ejection plate; the sleeve body is arranged on the sleeve base, is provided with a shaft hole for installing a shaft pin, and is a double-section sleeve body; the double-section sleeve body comprises a movable sleeve body and an ejection sleeve body which are connected with the base; the connecting position of the ejection sleeve body and the movable sleeve body adopts a conical connector with the decreasing outer diameter; the conical connector is arranged in a male-mold plate; the outer diameter of the ejection sleeve body is less than the outer diameter of the movable sleeve body; and the inner diameter of the ejection sleeve body is equal to the inner diameter of the movable sleeve body. The ejection sleeve disclosed by the invention has the advantages that by adoption of the double-section sleeve, due to difference of the outer diameters, a formed product is ejected by adopting the end surface of the sleeve in ejection; uniform ejecting force acts on the formed product, the demolding can be ensured, the fracture of the formed product is reduced, and no marks remain on the appearance of the formed product; and the structure is simple and reasonable, the stability is high, and the demolding faults such as fracture and scratch of the formed product are avoided.
Description
Technical field
What the present invention relates to is a kind of ejector member of ejection shaping mould, and what be specifically related to is that a kind of ejection shaping mould is used the ejector sleeve barrel structure.
Background technology
Injection molding is changeable with the structure of mould; Different gate forms; Different pushing methods and different dies structure just can be formed various types of die form, so desire is with the mould difficulty of clearly classifying rather; Now with general common classification mode, can simply distinguish according to mold structure. double-plate mould, shree plates mold mould, runnerless mould tool and pour in down a chimney mould.This mould penetrates action and finishes when the injection molding product, and filling then forms the work that article eject after the material cooled of formingspace is solidified, and the fixation side and the movable side of forming machine are opened stroke at this moment, and mould is that start and opens on the boundary with the die joint.Usually be fixed in the mould of movable plate, movable side and movable plate are retreated simultaneously, and the knock-pin of mat forming machine makes the ejecting mechanism start of mould then, 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 of decision extrusion method.The main purpose that formed products ejects is to make the formed products that shrinks the heart type that is bonded to, dark rib, protruding hub etc. because of being shaped break away from mould; Thereby must select to eject the position in the big place of ejection resistance; But the formed products of same shape is also selected different extrusion methods for use because of the outward appearance, precision, the formability that require.Use a kind of sleeve that ejects in the mould ejecting mechanism at present, little person of its internal diameter or length are than the difficult processing of elder, and thin meat person in use is prone to break, and the easy in appearance residual vestige that ejects of formed products, influence the outward appearance and the quality of product.
Summary of the invention
To the deficiency that exists on the prior art, the present invention seeks to be to provide a kind of Stability Analysis of Structures, the ejection shaping mould of ejecting force even action can be guaranteed the demoulding with ejecting sleeve, reduces formed products and breaks, and has avoided the residual in appearance vestige that ejects of formed products.
To achieve these goals, the present invention realizes through following technical scheme:
Ejection shaping mould is with ejecting sleeve; It comprises the male model liftout plate, is installed in the sleeve base of male model liftout plate and is arranged on the sleeve body on the sleeve base; Said sleeve body passes in male model plate and male model die to the die die cavity, and sleeve body is provided with the axis hole that pivot pin is installed, and it is characterized in that; Said sleeve body is the binodal sleeve body; This binodal sleeve body comprises the movable cylindrical shell that is connected with the sleeve base and the cylindrical shell that ejects on the movable cylindrical shell is set, and what adopted the said junction that ejects cylindrical shell and movable cylindrical shell is the taper connection body that external diameter successively decreases, and said taper connection body is arranged in the male model plate; The said external diameter that ejects the external diameter of cylindrical shell less than movable cylindrical shell, the said internal diameter that ejects cylindrical shell equates with the internal diameter of movable cylindrical shell.
With ejecting sleeve, wherein, the said barrel thickness that ejects cylindrical shell is 0.6-0.8mm according to above-mentioned ejection shaping mould.
With ejecting sleeve, wherein, the barrel thickness of said movable cylindrical shell is 1-1.5mm according to above-mentioned ejection shaping mould.
With ejecting sleeve, wherein, the length of said movable cylindrical shell is less than the length that ejects cylindrical shell according to above-mentioned ejection shaping mould.
The present invention is through adopting the binodal sleeve, because the external diameter difference, and adopts sleeve end face to eject formed products when it is ejected; It has uniform ejecting force and acts on formed products, can guarantee the demoulding, reduces formed products and breaks; And make the not residual in appearance vestige that ejects of formed products; It is simple and reasonable for structure, and stability is high, has avoided demoulding faults such as formed products breaks, scratch.
Description of drawings
Specify the present invention below in conjunction with the accompanying drawing and the specific embodiment;
Fig. 1 is a structural representation of the present invention.
The specific embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect and be easy to understand and understand, below in conjunction with the specific embodiment, further set forth the present invention.
Referring to Fig. 1; The ejection shaping mould of present embodiment is with ejecting sleeve, and it is applied in the ejection shaping mould, and 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 liftout plate, male model plate and is arranged on the die on the male model plate, and the ejection shaping mould of present embodiment comprises the sleeve base 1 that is installed in the male model liftout plate and be arranged on the sleeve body on the sleeve base 1 that with ejecting sleeve said sleeve body passes in male model plate and male model die to the die die cavity; Sleeve body and sleeve base are provided with the axis hole that pivot pin is installed; Said sleeve body is the binodal sleeve body, and this binodal sleeve body comprises the movable cylindrical shell 2 that is connected with sleeve base 1 and be provided with and eject cylindrical shell 4 on the movable cylindrical shell 2, and said what eject that cylindrical shell 4 and movable cylindrical shell 2 junctions adopt is the taper connection body 3 that external diameter successively decreases; Said taper connection body 3 is arranged in the male model plate; The said external diameter that ejects the external diameter of cylindrical shell 4 less than movable cylindrical shell 2, the said internal diameter that ejects cylindrical shell 4 equates that with the internal diameter of movable cylindrical shell 2 length of movable cylindrical shell 2 is less than the length that ejects cylindrical shell 4.
In the present embodiment, the said barrel thickness that ejects cylindrical shell 4 is 0.6-0.8mm, and the barrel thickness of movable cylindrical shell 2 is 1-1.5mm.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 big 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, ejects the position and 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 the suitable sleeve that ejects again, be placed on the heart type pin; Be fixed in lower roof plate, utilization ejects sleeve finished product is ejected.
The present invention is through adopting the binodal sleeve, because the external diameter difference, and adopts sleeve end face to eject formed products when it is ejected; It has uniform ejecting force and acts on formed products, can guarantee the demoulding, reduces formed products and breaks; And make the not residual in appearance vestige that ejects of formed products; It is simple and reasonable for structure, and stability is high, has avoided demoulding faults such as formed products breaks, scratch.
More than show and described basic principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; The present invention is not restricted to the described embodiments; That describes in the foregoing description and the specification just explains principle of the present invention; Under the prerequisite that does not break away from spirit and scope of the invention, the present invention also has various changes and modifications, and these variations and improvement all fall in the scope of the invention that requires protection.The present invention requires protection domain to be defined by appending claims and equivalent thereof.
Claims (4)
1. ejection shaping mould is with ejecting sleeve; It comprises the male model liftout plate, is installed in the sleeve base of male model liftout plate and is arranged on the sleeve body on the sleeve base that sleeve body is provided with the axis hole that pivot pin is installed, and it is characterized in that; Said sleeve body is the binodal sleeve body; This binodal sleeve body comprises the movable cylindrical shell that is connected with the sleeve base and the cylindrical shell that ejects on the movable cylindrical shell is set, and what adopted the said junction that ejects cylindrical shell and movable cylindrical shell is the taper connection body that external diameter successively decreases, and said taper connection body is arranged in the male model plate; The said external diameter that ejects the external diameter of cylindrical shell less than movable cylindrical shell, the said internal diameter that ejects cylindrical shell equates with the internal diameter of movable cylindrical shell.
2. ejection shaping mould according to claim 1 is characterized in that with ejecting sleeve the said barrel thickness that ejects cylindrical shell is 0.6-0.8mm.
3. ejection shaping mould according to claim 1 and 2 is characterized in that with ejecting sleeve the barrel thickness of said movable cylindrical shell is 1-1.5mm.
4. ejection shaping mould according to claim 1 is characterized in that with ejecting sleeve the length of said movable cylindrical shell is less than the length that ejects cylindrical shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103435311A CN102825743A (en) | 2012-09-17 | 2012-09-17 | Ejection sleeve for ejection molding mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103435311A CN102825743A (en) | 2012-09-17 | 2012-09-17 | Ejection sleeve for ejection molding mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102825743A true CN102825743A (en) | 2012-12-19 |
Family
ID=47329156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103435311A Pending CN102825743A (en) | 2012-09-17 | 2012-09-17 | Ejection sleeve for ejection molding mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102825743A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4919608A (en) * | 1988-10-04 | 1990-04-24 | Roehr Tool Corporation | Molding apparatus with collapsible core |
| JPH06134809A (en) * | 1992-10-22 | 1994-05-17 | Matsushita Electric Ind Co Ltd | Injection molding equipment for hollow item |
| US20030012844A1 (en) * | 2000-06-19 | 2003-01-16 | Glenn Starkey | Core pin and sleeve and method of using same |
| US20080152753A1 (en) * | 2006-12-22 | 2008-06-26 | Cheng Uei Precision Industry Co., Ltd. | Ejector Blade |
| CN201253935Y (en) * | 2008-10-17 | 2009-06-10 | 深圳昌红模具科技股份有限公司 | Core mould slanted ejecting structure |
| CN202781731U (en) * | 2012-09-17 | 2013-03-13 | 晟扬精密模具（昆山）有限公司 | Ejection sleeve for injection molding mold |
-
2012
- 2012-09-17 CN CN2012103435311A patent/CN102825743A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4919608A (en) * | 1988-10-04 | 1990-04-24 | Roehr Tool Corporation | Molding apparatus with collapsible core |
| JPH06134809A (en) * | 1992-10-22 | 1994-05-17 | Matsushita Electric Ind Co Ltd | Injection molding equipment for hollow item |
| US20030012844A1 (en) * | 2000-06-19 | 2003-01-16 | Glenn Starkey | Core pin and sleeve and method of using same |
| US20080152753A1 (en) * | 2006-12-22 | 2008-06-26 | Cheng Uei Precision Industry Co., Ltd. | Ejector Blade |
| CN201253935Y (en) * | 2008-10-17 | 2009-06-10 | 深圳昌红模具科技股份有限公司 | Core mould slanted ejecting structure |
| CN202781731U (en) * | 2012-09-17 | 2013-03-13 | 晟扬精密模具（昆山）有限公司 | Ejection sleeve for injection molding mold |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103660189A (en) | Demoulding structure for plastic helical gear injection molding | |
| CN201325134Y (en) | Mold with novel taper pin | |
| CN201900698U (en) | Ejection mechanism for removing molded barb | |
| CN202781731U (en) | Ejection sleeve for injection molding mold | |
| CN201669861U (en) | Simple secondary ejection mechanism of injection mold | |
| CN105751449A (en) | Ejection mechanism of forming die of car lamp light guide bar | |
| CN204546968U (en) | Borrow ejecting structure | |
| CN207415903U (en) | The seamless ejecting structure of injection mold threaded insert | |
| CN102848535A (en) | Ejection mechanism for injection molding mold | |
| CN202781732U (en) | Ejection mechanism for injection molding mold | |
| CN103963250B (en) | Double color mould two penetrates control structure for mould-matching | |
| CN201784100U (en) | Demolding structure | |
| CN102825743A (en) | Ejection sleeve for ejection molding mold | |
| CN203650898U (en) | Sleeve ejection structure | |
| CN202607986U (en) | Steel ball type secondary demoulding mechanism for injection mould | |
| CN103381635B (en) | A kind of mould emptier for plastic mould | |
| CN201399855Y (en) | Ejection mechanism for plastic mould | |
| CN206106277U (en) | Injection mold secondary demolding structure | |
| CN207915984U (en) | A kind of product circular arc demolding structure | |
| CN206623343U (en) | A kind of injection mould side core-pulling mechanism | |
| CN204109294U (en) | A kind of injection mold being convenient to the demoulding | |
| CN202572834U (en) | Injection mold | |
| CN107283764A (en) | ejecting structure and mould | |
| CN203697398U (en) | High-efficiency long-life injection molding sole mold | |
| CN203779811U (en) | Mould ejecting mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20121219 |