CN101664985A - External pulling type demolding structure of injection mold - Google Patents
External pulling type demolding structure of injection mold Download PDFInfo
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- CN101664985A CN101664985A CN200910192308A CN200910192308A CN101664985A CN 101664985 A CN101664985 A CN 101664985A CN 200910192308 A CN200910192308 A CN 200910192308A CN 200910192308 A CN200910192308 A CN 200910192308A CN 101664985 A CN101664985 A CN 101664985A
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- slide block
- demolding structure
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Abstract
The invention relates to an injection mold structure, in particular to an external pulling type demolding structure of an injection mold with an inverted buckle arranged on the inner wall of an injection product. The external pulling type demolding structure of the injection mold comprises a front mold, a back mold, a back mold insert on the back mold used for shaping the inverted buckle structureof the product and a slide block arranged on the back mold, wherein an inclined guide rod used for causing the slide block to move laterally is arranged on the front mold. The demolding structure ischaracterized in that a hook block that can be inserted into the inner cavity of the product is arranged on the slide block and a containing cavity that can contain the hook block on the slide block is arranged on the back mold insert. The demolding structure replaces an inclined top demolding structure with a slide block demolding structure. With high strength of the slide block, the demolding structure is not easy to be distorted and damaged when being pressed during injection process, thus being capable of meeting requirements of long-term production and ensuring stable size of products andhigh rate of finished products.
Description
Technical field
The present invention relates to injection mold structure, particularly there is the external pulling type demolding structure of the injection mold of back-off in the injecting products internal face.
Background technology
The oblique top mould emptier is a kind of form the simplest in the mould emptier in the present injection mold, commonly used.It is made simply, changes easily.Have the product of back-off for structure complicated product, especially inwall, adopt the oblique top mould emptier to go out usually.
But for product as shown in Figure 1,1A is long in its side, and the position, inner space is very little, if the back-off 2A of its inwall still adopts the oblique top demoulding, be subjected to the restriction of product inner space, the oblique top 3A that designs also is slender type, as shown in Figure 2, leptosomatic oblique top exists yielding and shortcoming such as bending, finally can cause the product size instability, and formed product is of poor quality, substandard products are many, and production efficiency is low.
Summary of the invention
The object of the present invention is to provide a kind of external pulling type demolding structure of injection mold, simple in structure, intensity good, not yielding, with the constant product quality that this demolding structure is produced, yield rate height.
For addressing the above problem, the present invention adopts following technical scheme:
The external pulling type demolding structure of injection mold, comprise that front mould, back mould, back mould are provided with the back mould mold insert that is used for the moulding of product back-off structure and are located at the slide block of back on the mould, front mould is provided with and is used to Angle Pin that slide block is displaced sideways, described slide block is provided with the piece that colludes that can insert product cavity, and described back mould mold insert is provided with the containing cavity that colludes piece on can ccontaining slide block.
Described Angle Pin one end tilts to be fixed on the front mould, and the other end points to the back mould, and described slide block is provided with the inclined hole of the Angle Pin of can planting.
Compared with prior art, the present invention has following beneficial effect: the slide block mould emptier replaces the oblique top mould emptier, because of slide block intensity good; be difficult for producing distortion, not fragile when in injection process, being under pressure; can satisfy the requirement of long-term production, guarantee that product size is stable, the yield rate height.
Description of drawings
Below in conjunction with drawings and Examples the present invention is done further detailed description.
Fig. 1 is the shaped article schematic diagram.
Fig. 2 is the schematic diagram of oblique top demolding structure in the prior art.
Fig. 3 is the front view of mould of the present invention.
B-B cutaway view when Fig. 4 is Fig. 3 matched moulds state.
B-B cutaway view when Fig. 5 is Fig. 3 die opening state.
Fig. 6 is the enlarged drawing at A place among Fig. 5.
A-A cutaway view when Fig. 7 is Fig. 3 demoulding state.
Fig. 8 is the schematic perspective view of slide block of the present invention.
Fig. 9 is the schematic perspective view of mould mold insert behind the present invention.
The specific embodiment
As the external pulling type demolding structure of Fig. 3 to injection mold shown in Figure 7, comprise front mould 2, back mould 5, Angle Pin 3, slide block 4, back mould mold insert 6, push rod 8, back mould mold insert 6 is used for the moulding of product back-off structure, Angle Pin 3 is fixed on the front mould 2, the one end tilts to be fixed on the front mould 2, and the other end points to back mould 5.Slide block 4 is located on the mould 5 of back, and slide block 4 is provided with the inclined hole 7 of the Angle Pin 3 of can planting, and slide block 4 can side direction move under the guiding of Angle Pin 3.
As Fig. 8 and shown in Figure 9, back mould mold insert 6 belows are provided with containing cavity 61, and slide block 4 is provided with and colludes piece 41, colluding piece 41 and can embed containing cavity 61 on the back mould mold insert 6 on the slide block 4.
As shown in Figure 4, during matched moulds, Angle Pin 3 stretches into inclined hole 7 and promotes slide blocks 4, and slide block 4 is subjected to the lateral pressure of Angle Pin 3 to move to the moulding position that closely cooperates, and at this moment, the piece 41 that colludes on the slide block 4 embeds containing cavity 61 on the back mould mold inserts 6.
As shown in Figure 5 and Figure 6, during die sinking, Angle Pin 3 withdraws from inclined hole 7, stirs slide block 4 simultaneously and moves, and colluding the containing cavity 61 of piece 41 from back mould mold insert 6 of slide block 4 withdrawed from, and the pulling force that the sidewall 11 of product 1 is subjected to colluding piece 41 outwards distortion breaks away from back mould mold insert 6.
As shown in Figure 7, after the demoulding, push rod 8 ejects product 1.
Mould in the present embodiment is a mould two chambeies.
Claims (2)
1, the external pulling type demolding structure of injection mold, comprise that front mould, back mould, back mould are provided with the back mould mold insert that is used for the moulding of product back-off structure and are located at the slide block of back on the mould, front mould is provided with and is used to Angle Pin that slide block is displaced sideways, it is characterized in that: described slide block is provided with the piece that colludes that can insert product cavity, and described back mould mold insert is provided with the containing cavity that colludes piece on can ccontaining slide block.
2, the external pulling type demolding structure of injection mold according to claim 1 is characterized in that: described Angle Pin one end tilts to be fixed on the front mould, and the other end points to the back mould, and described slide block is provided with the inclined hole of the Angle Pin of can planting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910192308A CN101664985A (en) | 2009-09-10 | 2009-09-10 | External pulling type demolding structure of injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910192308A CN101664985A (en) | 2009-09-10 | 2009-09-10 | External pulling type demolding structure of injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101664985A true CN101664985A (en) | 2010-03-10 |
Family
ID=41801840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910192308A Pending CN101664985A (en) | 2009-09-10 | 2009-09-10 | External pulling type demolding structure of injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101664985A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103978632A (en) * | 2014-05-26 | 2014-08-13 | 苏州意玛斯砂光设备有限公司 | Twice parting mechanism of injection mould |
| CN106881805A (en) * | 2017-03-21 | 2017-06-23 | 滁州市宏达模具制造有限公司 | Band beam foaming multi-slide follower box body foaming mould |
| CN110154311A (en) * | 2018-02-10 | 2019-08-23 | 苏州汉扬精密电子有限公司 | The overhead kick molding structure and forming method of product |
-
2009
- 2009-09-10 CN CN200910192308A patent/CN101664985A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103978632A (en) * | 2014-05-26 | 2014-08-13 | 苏州意玛斯砂光设备有限公司 | Twice parting mechanism of injection mould |
| CN106881805A (en) * | 2017-03-21 | 2017-06-23 | 滁州市宏达模具制造有限公司 | Band beam foaming multi-slide follower box body foaming mould |
| CN106881805B (en) * | 2017-03-21 | 2022-11-29 | 滁州市宏达模具制造有限公司 | Foaming mold for box body with Liang Fapao multi-slide block follow-up mechanism |
| CN110154311A (en) * | 2018-02-10 | 2019-08-23 | 苏州汉扬精密电子有限公司 | The overhead kick molding structure and forming method of product |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100310 |