CN210525742U - External secondary ejection mechanism of mould - Google Patents
External secondary ejection mechanism of mould Download PDFInfo
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- CN210525742U CN210525742U CN201921146278.4U CN201921146278U CN210525742U CN 210525742 U CN210525742 U CN 210525742U CN 201921146278 U CN201921146278 U CN 201921146278U CN 210525742 U CN210525742 U CN 210525742U
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Abstract
The utility model relates to an external secondary ejection mechanism of a mould, which is arranged on a mould seat, an ejector pin bottom plate, an ejector pin plate and a B plate of the mould; the device comprises a stroke drag hook, a limit drag hook, a spring block seat and a bouncing meson; the elastic block seat is fixed between the thimble base plate and the thimble plate, the bouncing medium is embedded in the elastic block seat, and the bottom end of the bouncing medium is also provided with a spring; the bottom side of the front end of the limiting drag hook is fixed on the die holder, and the rear end of the limiting drag hook is provided with a first hook part; the bottom side of the rear end of the travel draw hook is fixed on the B plate, downward second hook parts are arranged on the left side and the right side of the front end of the travel draw hook, the second hook parts are located on the front side of the top end of the bouncing dielectric, and the first hook parts penetrate between the two second hook parts and are located behind the top end of the bouncing dielectric. The utility model discloses an external secondary ejection mechanism of mould realizes that the secondary is ejecting through the design of spacing drag hook and bullet piece meson, has simplified the overall structure of mould, and relevant parts processing, installation and change are more convenient, have reduced the processing cost of product, improve production efficiency.
Description
Technical Field
The utility model relates to an injection mold design field especially relates to an external secondary ejection mechanism of mould.
Background
The mold has the advantages that the mold is changed in times and improved in technology, plastic parts are used in more and more places, the structure and the type of the plastic products are complex, the ejection mode of the product has important influence on the quality and the production efficiency of the plastic products, and when the product with larger size is encountered, a secondary ejection mechanism is needed, so that the structure of the mold is complex, and the position of the secondary ejection in the mold needs to be arranged; the quantity of ejector pin boards is increased, the height of the mould feet is increased, and the height of the ejector pins is increased relatively, which means that the strength of the ejector pins is higher and the cost is increased. The ejection stroke of the die is large. The two ejector pin plates need to be pulled by the force of the spring, and the spring is easy to fatigue damage and reduce the production efficiency compared with other materials in the production process for a plurality of times due to the pressure generated by the injection molding machine,
SUMMERY OF THE UTILITY MODEL
For solving the technical problem, the utility model provides an external secondary ejection mechanism of mould realizes that the secondary is ejecting through the design of spacing drag hook and bullet piece meson, has simplified the overall structure of mould, and relevant parts processing is convenient with the change, has reduced the processing cost of product, improves production efficiency.
The utility model provides a technical scheme that its technical problem adopted is: an external secondary ejection mechanism of a die is arranged on a die holder, an ejector pin bottom plate, an ejector pin plate and a B plate of the die; the device comprises a stroke drag hook, a limit drag hook, a spring block seat and a bouncing meson; the elastic block seat is fixed between the thimble bottom plate and the thimble plate, the bouncing meson is embedded in the elastic block seat, the top end of the bouncing meson is exposed outside the elastic block seat, the bouncing meson can move up and down in the elastic block seat, and the bottom end of the bouncing meson is also provided with a spring; the bottom side of the front end of the limiting drag hook is fixed on the die holder, and a downward first hook part is arranged at the rear end of the limiting drag hook; the bottom side of the rear end of the travel draw hook is fixed on the B plate, downward second hook portions are arranged on the left side and the right side of the front end of the travel draw hook, in a die assembly state, the ejector pin base plate and the ejector pin plate are located on the front side and close to the die holder, the second hook portions of the travel draw hook are located on the front side of the top end of the bouncing meson, and the first hook portions of the limiting draw hook penetrate between the two second hook portions and are located behind the top end of the bouncing meso.
A first inclined plane is arranged behind the top end of the bouncing meson, and a second inclined plane is arranged in front of the bouncing meson; a first platform is arranged on the rear side of a second hook part of the travel drag hook, and a third inclined plane is arranged on the front side of the second hook part of the travel drag hook; the rear side of the first hook part of the limiting drag hook is provided with a fourth inclined plane, and the front side of the first hook part of the limiting drag hook is provided with a fifth inclined plane.
When the die is opened, the B plate drives the stroke drag hook to move backwards, and the first platform of the second hook part of the stroke drag hook hooks the second inclined plane of the bouncing medium so as to drive the ejector pin bottom plate and the ejector pin plate to move backwards along with the B plate; when the first inclined surface of the bouncing medium contacts the fifth inclined surface of the first hook part of the limiting drag hook, the bouncing medium moves downwards under the extrusion effect of the first platform of the second hook part and the fifth inclined surface of the first hook part of the limiting drag hook, so that the second hook part of the stroke drag hook is completely separated from the bouncing medium, and the ejector pin bottom plate and the ejector pin plate stop moving to finish one-time ejection.
Return blocks are respectively fixed at the positions behind the two second hook parts on the stroke draw hook; a third hook part is arranged on the rear side of the return block, and a second platform is arranged on the front side of the third hook part; and third platforms corresponding to the second platforms of the two return blocks are further arranged at the left end and the right end of the first inclined plane of the bouncing meson.
When the die is closed, the B plate drives the stroke drag hook to move forwards, the bouncing meson moves downwards and then pops up under the action of the spring, the bouncing meson is clamped between the second hook part of the stroke drag hook and the return block, the second platform of the return block clamps the third platform of the bouncing meson, and the return block drives the bouncing meson to reset the ejector pin bottom plate and the ejector pin plate.
The bottom surface of the stroke drag hook is positioned between the two second hook parts, and a guide groove is formed in the position, between the two second hook parts, of the stroke drag hook for providing guidance for the limiting drag hook.
The utility model has the advantages that: the utility model discloses an external secondary ejection mechanism of mould realizes that the secondary is ejecting through the design of spacing drag hook and bullet piece meson, has simplified the overall structure of mould, and relevant parts processing, installation and change are more convenient, have reduced the processing cost of product, improve production efficiency.
Drawings
Fig. 1 is a schematic top view of an external secondary ejection mechanism of a mold according to an embodiment;
FIG. 2 is a schematic view of section A-A of FIG. 1;
fig. 3 is a partially enlarged schematic view at B of fig. 2;
FIG. 4 is a schematic view of a travel drag hook, a limit drag hook and a return block of the external secondary ejection mechanism of the mold according to the embodiment;
fig. 5 is a schematic view of a bouncing medium of an external secondary ejection mechanism of a mold according to an embodiment.
Detailed Description
In order to deepen the understanding of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and embodiments, which are only used for explaining the present invention and are not limited to the protection scope of the present invention.
Examples
As shown in fig. 1 to 5, the embodiment provides an external secondary ejection mechanism for a mold, which is installed on a mold seat 1, an ejector base plate 2, an ejector pin plate 3 and a B plate 4 of the mold; the device comprises a stroke drag hook 5, a limit drag hook 6, an elastic block seat 7 and a bouncing meson 8; the elastic block seat 7 is fixed between the thimble base plate 2 and the thimble plate 3, the bouncing meson 8 is embedded in the elastic block seat 7, the top end of the bouncing meson is exposed outside the elastic block seat 7, the bouncing meson 8 can move up and down in the elastic block seat 7, and the bottom end of the bouncing meson is also provided with a spring 10; the bottom side of the front end of the limiting drag hook 6 is fixed on the die holder 1, and the rear end of the limiting drag hook is provided with a downward first hook part 61; the bottom side of the rear end of the travel drag hook 5 is fixed on the B plate 4, downward second hook parts 51 are arranged on the left side and the right side of the front end of the travel drag hook 5, the ejector pin base plate 2 and the ejector pin plate 3 are positioned on the front side and close to the die holder 1 in a die closing state, the second hook parts 51 of the travel drag hook 5 are positioned on the front side of the top end of the bouncing meson 8, and the first hook part 61 of the limiting drag hook penetrates between the two second hook parts 51 and is positioned behind the top end of the bouncing meson 8; a first inclined plane 81 is arranged at the rear part of the top end of the bouncing meson 8, and a second inclined plane 82 is arranged at the front part; a first platform is arranged on the rear side of the second hook part 51 of the travel draw hook 5, and a third inclined plane is arranged on the front side; a fourth inclined plane is arranged on the rear side of the first hook part 61 of the limiting drag hook 6, and a fifth inclined plane is arranged on the front side; the positions of the stroke drag hook 5 behind the two second hook parts 51 are respectively fixed with a return block 9; a third hook part is arranged on the rear side of the return block 9, and a second platform is arranged on the front side of the third hook part; third platforms 83 corresponding to the second platforms of the two return blocks 9 are further arranged at the left end and the right end of the first inclined plane of the bouncing medium 8; a guide groove 52 is formed in the position, between the two second hook parts 51, of the bottom surface of the travel draw hook and is used for guiding the limit draw hook 6.
The embodiment provides an external secondary ejection mechanism for a mold, when the mold is opened, a B plate 4 drives a stroke drag hook 5 to move backwards, a first platform of a second hook part 51 of the stroke drag hook 5 hooks a second inclined plane of a bouncing medium 8 so as to drive an ejector pin base plate 2 and an ejector pin plate 3 to move backwards along with the B plate 4; when the first inclined surface of the bouncing medium 8 is contacted with the fifth inclined surface of the first hook part 61 of the limit drag hook 6, the bouncing medium 8 moves downwards under the extrusion action of the first platform of the second hook part 51 and the fifth inclined surface of the first hook part 61 of the limit drag hook 6, so that the second hook part 51 of the stroke drag hook 5 is completely separated from the bouncing medium 8, the ejector pin base plate 2 and the ejector pin plate 3 stop moving, and one-time ejection is completed; and then, ejecting the product through an ejector rod of an injection molding machine to realize secondary ejection of the product.
The embodiment provides an external secondary ejection mechanism for a mold, when the mold is closed, a B plate 4 drives a stroke drag hook 5 to move forwards, a bouncing medium 8 moves downwards and then pops up under the action of a spring 10, the bouncing medium is clamped between a second hook part 51 of the stroke drag hook 5 and a return block 9, a second platform of the return block 9 clamps a third platform 83 of the bouncing medium 8, and then the return block 9 drives the bouncing medium 8 to reset an ejector pin bottom plate 2 and an ejector pin plate 3.
The external secondary ejection mechanism of mould of this embodiment realizes that the secondary is ejecting through the design of spacing drag hook and bullet piece meson, has simplified the overall structure of mould, and relevant parts processing, installation and change are more convenient, have reduced the processing cost of product, improve production efficiency.
The above-mentioned embodiments should not limit the present invention in any way, and all the technical solutions obtained by adopting equivalent replacement or equivalent conversion fall within the protection scope of the present invention.
Claims (6)
1. The utility model provides an external secondary ejection mechanism of mould which characterized in that: the ejector pin plate is arranged on a die holder, an ejector pin bottom plate, an ejector pin plate and a B plate of the die; the device comprises a stroke drag hook, a limit drag hook, a spring block seat and a bouncing meson; the elastic block seat is fixed between the thimble bottom plate and the thimble plate, the bouncing meson is embedded in the elastic block seat, the top end of the bouncing meson is exposed outside the elastic block seat, the bouncing meson can move up and down in the elastic block seat, and the bottom end of the bouncing meson is also provided with a spring; the bottom side of the front end of the limiting drag hook is fixed on the die holder, and a downward first hook part is arranged at the rear end of the limiting drag hook; the bottom side of the rear end of the travel draw hook is fixed on the B plate, downward second hook portions are arranged on the left side and the right side of the front end of the travel draw hook, in a die assembly state, the ejector pin base plate and the ejector pin plate are located on the front side and close to the die holder, the second hook portions of the travel draw hook are located on the front side of the top end of the bouncing meson, and the first hook portions of the limiting draw hook penetrate between the two second hook portions and are located behind the top end of the bouncing meso.
2. The external secondary ejection mechanism for the mold according to claim 1, wherein: a first inclined plane is arranged behind the top end of the bouncing meson, and a second inclined plane is arranged in front of the bouncing meson; a first platform is arranged on the rear side of a second hook part of the travel drag hook, and a third inclined plane is arranged on the front side of the second hook part of the travel drag hook; the rear side of the first hook part of the limiting drag hook is provided with a fourth inclined plane, and the front side of the first hook part of the limiting drag hook is provided with a fifth inclined plane.
3. The external secondary ejection mechanism for the mold according to claim 2, wherein: when the die is opened, the B plate drives the stroke drag hook to move backwards, and the first platform of the second hook part of the stroke drag hook hooks the second inclined plane of the bouncing medium so as to drive the ejector pin bottom plate and the ejector pin plate to move backwards along with the B plate; when the first inclined surface of the bouncing medium contacts the fifth inclined surface of the first hook part of the limiting drag hook, the bouncing medium moves downwards under the extrusion effect of the first platform of the second hook part and the fifth inclined surface of the first hook part of the limiting drag hook, so that the second hook part of the stroke drag hook is completely separated from the bouncing medium, and the ejector pin bottom plate and the ejector pin plate stop moving to finish one-time ejection.
4. The external secondary ejection mechanism for the mold according to claim 1, wherein: return blocks are respectively fixed at the positions behind the two second hook parts on the stroke draw hook; a third hook part is arranged on the rear side of the return block, and a second platform is arranged on the front side of the third hook part; and third platforms corresponding to the second platforms of the two return blocks are further arranged at the left end and the right end of the first inclined plane of the bouncing meson.
5. The external secondary ejection mechanism for the mold according to claim 4, wherein: when the die is closed, the B plate drives the stroke drag hook to move forwards, the bouncing meson moves downwards and then pops up under the action of the spring, the bouncing meson is clamped between the second hook part of the stroke drag hook and the return block, the second platform of the return block clamps the third platform of the bouncing meson, and the return block drives the bouncing meson to reset the ejector pin bottom plate and the ejector pin plate.
6. The external secondary ejection mechanism for the mold according to claim 1, wherein: the bottom surface of the stroke drag hook is positioned between the two second hook parts, and a guide groove is formed in the position, between the two second hook parts, of the stroke drag hook for providing guidance for the limiting drag hook.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921146278.4U CN210525742U (en) | 2019-07-19 | 2019-07-19 | External secondary ejection mechanism of mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921146278.4U CN210525742U (en) | 2019-07-19 | 2019-07-19 | External secondary ejection mechanism of mould |
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| CN210525742U true CN210525742U (en) | 2020-05-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921146278.4U Active CN210525742U (en) | 2019-07-19 | 2019-07-19 | External secondary ejection mechanism of mould |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111873323A (en) * | 2020-06-09 | 2020-11-03 | 清远市金钟汽车零部件有限公司 | Injection mold and mold opening method thereof |
-
2019
- 2019-07-19 CN CN201921146278.4U patent/CN210525742U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111873323A (en) * | 2020-06-09 | 2020-11-03 | 清远市金钟汽车零部件有限公司 | Injection mold and mold opening method thereof |
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