CN206520185U - Small button bit undercut mechanism - Google Patents
Small button bit undercut mechanism Download PDFInfo
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- CN206520185U CN206520185U CN201720198297.6U CN201720198297U CN206520185U CN 206520185 U CN206520185 U CN 206520185U CN 201720198297 U CN201720198297 U CN 201720198297U CN 206520185 U CN206520185 U CN 206520185U
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- thimble panel
- wall
- footstock
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Abstract
The utility model discloses small button bit undercut mechanism, a cavity is provided with thimble panel, straight footstock is provided with the cavity, the lower end directly pushed up is fixedly connected by screw with straight footstock, above-mentioned Ejector Retainer Plate is located at below thimble panel, the epimere directly pushed up is located in mould B plates and rear cavity, rear cavity is located at the top of mould B plates, mould B plates and rear cavity push up upper and lower displacement along straight, straight footstock side props up the cavity inner wall of thimble panel, straight footstock opposite side laterally offers spring pilot hole, one end of spring is assemblied in above-mentioned spring pilot hole, the other end of spring is propped up at the cavity inner wall of thimble panel, gap is formed between the cavity inner wall of straight footstock opposite side and thimble panel.In the process kind of die sinking motion, when promoting the ejector retainner plate inclined-plane of the straight top motion when straight top above is encountered the inclined-plane in rear cavity by the top rod of injection machine, due to the effect on inclined-plane, straight push up to the movement of dropout direction is forced to deviate from button bit, finally smoothly ejecting product.
Description
Technical field
The utility model is related to the technical field of injection mold, specifically a kind of small button bit undercut mechanism, special
It is not related to its mechanical connecting structure.
Background technology
The mechanism species for being used for parting in plastic mould industry is various, has sliding block, oblique top, interior takes out etc..Each class formation exists
It is functionally identical, but reliability, economy, there is very big otherness again；It is according in different occasions reason design typing mechanism
It is necessary.When running into smaller product back-off and very limited mould structure space, irrational design structure is easy to influence
The injection mold course of work.
The content of the invention
The purpose of this utility model is a kind of small button bit undercut mechanism of offer, can not be just for solving product back-off
The problem of normal depanning.When running into smaller product back-off and very limited mould structure space, it is possible to use such a structure type,
To reach the terseness and practicality of mould structure.
To achieve these goals, the technical solution of the utility model is：Small button bit undercut mechanism, including rear mold
It is provided with benevolence, mould B plates, thimble panel and Ejector Retainer Plate, thimble panel in a cavity, the cavity and is provided with straight footstock, is directly pushed up
Lower end is fixedly connected by screw with straight footstock, and above-mentioned Ejector Retainer Plate is located at below thimble panel, and the epimere directly pushed up is located at mould B
In plate and rear cavity, rear cavity is located at the top of mould B plates, and mould B plates and rear cavity push up upper and lower displacement, Zhi Ding sides along straight
Longitudinal outer wall on be inwardly formed a depressed part, the upper end of depressed part forms rectangular-shaped reverse step, and the lower end of depressed part is formed
A reverse limited step is formed on ramped shaped step, longitudinal outer wall of straight top opposite side, the inclined side in Zhi Ding upper ends forms a circular arc
The reverse slope shape step coordinated with above-mentioned ramped shaped step is formed on face, rear cavity internal chamber wall, straight footstock side props up thimble
The cavity inner wall of panel, straight footstock opposite side laterally offers spring pilot hole, and one end of spring is assemblied in above-mentioned spring assembling
In hole, the other end of spring is propped up at the cavity inner wall of thimble panel, the cavity inner wall of straight footstock opposite side and thimble panel it
Between form gap.
The utility model discloses small button bit undercut mechanism, in the process kind of die sinking motion, by the top rod of injection machine
Promote ejector retainner plate to make straight top motion when directly the inclined-plane in rear cavity is encountered on the inclined-plane of top above, due to the effect on inclined-plane, force
Straight push up is moved to dropout direction and deviates from button bit, finally smoothly ejecting product.Mechanism structure is small, and processing simply releases mould
Have inner space, fully arranged beneficial to water route.
Brief description of the drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is that the utility model completes injection preparation ejection view.
Fig. 3 is that the utility model ejection carries out view.
Fig. 4 is that the utility model ejects completion status schematic diagram.
Fig. 5 is that the utility model ejects rollback view.
Fig. 6 is that the utility model prepares injection view.
Wherein：
1st, rear cavity；
2nd, mould B plates；
3rd, thimble panel；
4th, straight footstock；
5th, Zhi Ding；
6th, depressed part；
7th, rectangular-shaped reverse step；
8th, ramped shaped step；
9th, reverse limited step；
10th, arc surface；
11st, reverse slope shape step；
12nd, spring pilot hole；
13rd, spring；
14th, gap;
15th, Ejector Retainer Plate
16th, screw.
Embodiment
With reference to the accompanying drawings, the utility model is further described below；
The utility model discloses small button bit undercut mechanism, it is different from prior art and is：Including rear cavity 1,
It is provided with mould B plates 2, thimble panel 3 and Ejector Retainer Plate 15, thimble panel 3 in a cavity, the cavity and is provided with straight footstock 4, straight top
5 lower end is fixedly connected by screw 16 with straight footstock 4, and above-mentioned Ejector Retainer Plate 15 is located at the lower section of thimble panel 3, and directly top 5 is upper
Section is located in mould B plates 2 and rear cavity 1, and rear cavity 1 is located at the top of mould B plates 2, and mould B plates 2 and rear cavity 1 are along Zhi Ding
A depressed part 6 is inwardly formed on 5 upper and lower displacements, longitudinal outer wall of 5 sides of straight top, the upper end of depressed part 6 forms rectangular-shaped reverse
Step 7, the lower end of depressed part 6, which is formed on ramped shaped step 8, longitudinal outer wall of 5 opposite sides of straight top, forms a reverse limited step
9, the inclined side in 5 upper ends of straight top, which is formed on an arc surface 10, the internal chamber wall of rear cavity 1, forms anti-with the cooperation of above-mentioned ramped shaped step 8
To ramped shaped step 11, the straight side of footstock 4 props up the cavity inner wall of thimble panel 3, and the straight opposite side of footstock 4 laterally offers spring
Pilot hole 12, one end of spring 13 is assemblied in above-mentioned spring pilot hole 12, and the other end of spring 13 props up the chamber of thimble panel 3
At internal wall, gap 14 is formed between the cavity inner wall of the straight opposite side of footstock 4 and thimble panel 3.
In the specific implementation, the material directly pushed up needs to use high tenacity steel such as SKD61.This structure is applicable batch and compared
Less mould.
Above content is to combine specific preferred embodiment further detailed description of the utility model, it is impossible to
Assert that the utility model specific implementation is confined to these above-mentioned explanations.For the common skill of the utility model art
For art personnel, without departing from the concept of the premise utility, some simple deduction or replace can also be made, all should
It is considered as belonging to protection domain of the present utility model.
Claims (1)
1. small button bit undercut mechanism, it is characterised in that：Including rear cavity（1）, mould B plates（2）, thimble panel（3）And top
Pin bottom plate（15）, thimble panel（3）A cavity is inside provided with, straight footstock is provided with the cavity（4）, straight top（5）Lower end pass through spiral shell
Silk（16）With straight footstock（4）It is fixedly connected, above-mentioned Ejector Retainer Plate（15）Positioned at thimble panel（3）Lower section, straight top（5）Upper section
In mould B plates（2）And rear cavity（1）It is interior, rear cavity（1）Positioned at mould B plates（2）Top, mould B plates（2）And rear cavity（1）
Along Zhi Ding（5）Upper and lower displacement, straight top（5）A depressed part is inwardly formed on longitudinal outer wall of side（6）, depressed part（6）It is upper
End forms rectangular-shaped reverse step（7）, depressed part（6）Lower end formed ramped shaped step（8）, straight top（5）The longitudinal direction of opposite side
A reverse limited step is formed on outer wall（9）, straight top（5）The inclined side in upper end forms an arc surface（10）, rear cavity（1）Internal chamber wall
Upper formation and above-mentioned ramped shaped step（8）The reverse slope shape step of cooperation（11）, straight footstock（4）Side props up thimble panel
（3）Cavity inner wall, straight footstock（4）Opposite side laterally offers spring pilot hole（12）, spring（13）One end be assemblied in
State spring pilot hole（12）It is interior, spring（13）The other end prop up thimble panel（3）Cavity inner wall at, straight footstock（4）It is another
Side and thimble panel（3）Cavity inner wall between form gap（14）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720198297.6U CN206520185U (en) | 2017-03-02 | 2017-03-02 | Small button bit undercut mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720198297.6U CN206520185U (en) | 2017-03-02 | 2017-03-02 | Small button bit undercut mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206520185U true CN206520185U (en) | 2017-09-26 |
Family
ID=59893076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720198297.6U Active CN206520185U (en) | 2017-03-02 | 2017-03-02 | Small button bit undercut mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206520185U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107901360A (en) * | 2017-11-29 | 2018-04-13 | 张海勇 | A kind of ejecting structure with delay function and the mould with it |
| CN108656463A (en) * | 2018-08-15 | 2018-10-16 | 奥克斯空调股份有限公司 | A kind of Zhi Ding mechanisms and injection mold |
-
2017
- 2017-03-02 CN CN201720198297.6U patent/CN206520185U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107901360A (en) * | 2017-11-29 | 2018-04-13 | 张海勇 | A kind of ejecting structure with delay function and the mould with it |
| CN107901360B (en) * | 2017-11-29 | 2022-07-05 | 张海勇 | Automatic ejection device with time delay function and mold with same |
| CN108656463A (en) * | 2018-08-15 | 2018-10-16 | 奥克斯空调股份有限公司 | A kind of Zhi Ding mechanisms and injection mold |
| CN108656463B (en) * | 2018-08-15 | 2023-09-15 | 奥克斯空调股份有限公司 | Straight ejection mechanism and injection mold |
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| GR01 | Patent grant |