CN218948359U - Mechanical front and rear die demolding structure - Google Patents
Mechanical front and rear die demolding structure Download PDFInfo
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- CN218948359U CN218948359U CN202122945216.3U CN202122945216U CN218948359U CN 218948359 U CN218948359 U CN 218948359U CN 202122945216 U CN202122945216 U CN 202122945216U CN 218948359 U CN218948359 U CN 218948359U
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Abstract
The utility model discloses a mechanical front and rear mold demolding structure, which comprises a buckling machine, and a hot runner plate, a front mold plate, a rear mold plate and an ejector plate which are sequentially arranged from top to bottom; a front mold and a rear mold which form a mold cavity are respectively arranged on the front mold plate and the rear mold plate; a first rear mold insert connected with the mold cavity is fixedly arranged on the end of the rear mold facing the front mold; the first rear mold insert is also provided with a second rear mold insert which is correspondingly matched with the front mold and is connected with the thimble plate; the button machine is respectively connected with the front template, the rear template and the thimble plate, and when the front template and the rear template are opened, the thimble plate and the second rear mould insert move in the same direction with the front template; a driving device for driving the front template is also arranged on the hot runner plate. Through ingenious arrangement, the utility model can be used for propping a product against the front die by utilizing the second rear die insert in the demolding process, so that the product is not easy to be stuck on the rear die due to back-off, and the product is not easy to be pulled out, and the production efficiency is improved.
Description
Technical Field
The utility model relates to the technical field of dies, in particular to a mechanical front and rear die demoulding structure.
Background
The mold is an important equipment indispensable in injection molding. Injection molding is a method of injecting a plastic material in a hot-melt state into a closed molding space having a desired shape in a mold at a high speed, cooling and solidifying the plastic material, and then opening the mold to take out a solidified plastic processed product to obtain a molded product. The injection molding method has the characteristics of low molding cost, short molding period, simple molding process, easiness in molding plastic products with complex shapes and the like, so that the injection molding method is very popular in the field of plastic product manufacturing.
Along with the continuous improvement of the technological level, the requirements of people on the appearance quality of products are more strict. However, many dies in the market are too complex, and the product with the back-off is easy to be stuck on the rear die, so that the product cannot be molded or the buckling position is pulled out, thereby greatly reducing the production efficiency.
Disclosure of Invention
The present utility model has been made in view of the above problems occurring in the prior art, and an object of the present utility model is to provide a mechanical front and rear mold release structure, which can effectively solve the above technical problems.
In order to achieve the above object, the technical scheme of the present utility model is as follows:
a mechanical front and rear mold demolding structure comprises a buckling machine, and a hot runner plate, a front mold plate, a rear mold plate and an ejector plate which are sequentially arranged from top to bottom; a front mold and a rear mold forming a mold cavity are respectively arranged on the front mold plate and the rear mold plate; a first rear mold insert connected with the mold cavity is fixedly arranged on the end of the rear mold facing the front mold; the first rear mold insert is also provided with a second rear mold insert which is correspondingly matched with the front mold and is connected with the thimble plate; the button machine is respectively connected with the front template, the rear template and the thimble plate, and enables the thimble plate and the second rear mold insert to move in the same direction as the front template when the front template and the rear template are opened; and a driving device for driving the front template is also arranged on the hot runner plate.
As a specific embodiment, the sear comprises a sear main body, a sear stop block and a sear spring block which are matched with each other; the upper end of the button machine main body is connected to the front template, and the lower end of the button machine main body is provided with a hook part; the button machine stop block is connected to the rear template; the button machine elastic block is telescopically arranged on the side edge of the ejector plate, the outer end of the button machine elastic block is hooked by the hook part, and the button machine elastic block is correspondingly matched with the button machine stop block; and a spring matched with the elastic block of the button machine is also arranged in the ejector plate.
Further, the sear stop block and the sear spring block are respectively provided with an opposite and matched inclined plane.
Further, a limit chute with an opening at the lower end is arranged on the button machine main body, and the button machine stop block is positioned in the limit chute.
Further, the thimble plate comprises a thimble panel and a thimble bottom plate which are connected with each other; the button machine elastic block is clamped on the top surface of the thimble bottom plate, and the thimble panel compresses the button machine elastic block.
Further, a clamping groove is formed in the top surface of the thimble bottom plate, and one end of the button machine elastic block is correspondingly clamped into the clamping groove.
As a specific embodiment, the driving device is an oil cylinder.
As a specific embodiment, the top of the first rear mold insert is provided with a groove; the second rear mold insert is located in the recess.
Further, the ejector plate is connected with the second rear mold insert through a connecting rod.
As a specific embodiment, a panel is further arranged at the upper end of the hot runner plate, and a bottom plate is further arranged at the lower end of the thimble plate.
The beneficial effects of the utility model are as follows:
the utility model has simple and reasonable structure, can be used for propping a product against the front die by utilizing the second rear die insert in the demolding process through ingenious arrangement, so that the product is not easy to be stuck on the rear die because of back-off, the product is not easy to be pulled out of the die, and the production efficiency is greatly improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present utility model;
fig. 2 is a longitudinal cross-sectional view of the present utility model.
Reference numerals:
1. a panel; 2. a hot runner plate; 3. a front template; 4. a rear template; 5. a needle ejection plate; 51. a thimble panel; 52. a thimble bottom plate; 53. a clamping groove; 6. a bottom plate; 7. a front mold; 8. a rear mold; 9. a first rear mold insert; 10. a second rear mold insert; 11. a sear body; 111. a hook portion; 112. limiting sliding grooves; 12. a button machine stop block; 13. a button machine spring block; 14. and (5) an oil cylinder.
Detailed Description
The utility model is further illustrated in the following drawings and examples, which are given by way of illustration only and do not limit the scope of the utility model.
As shown in fig. 1 and 2, a mechanical front and rear mold demolding structure comprises a buckling machine, a hot runner plate 2, a front mold plate 3, a rear mold plate 4 and an ejector plate 5 which are sequentially arranged from top to bottom; a front mold 7 and a rear mold 8 for forming a mold cavity are respectively arranged on the front mold plate 3 and the rear mold plate 4; a first rear mold insert 9 connected to the mold cavity is fixedly provided on the end of the rear mold 8 facing the front mold 7; the first rear mold insert 9 is also provided with a second rear mold insert 10 which is correspondingly matched with the front mold 7 and is connected with the thimble plate 5; the button machine is respectively connected with the front template 3, the rear template 4 and the ejector plate 5, and when the front template 3 and the rear template 4 are opened, the ejector plate 5 and the second rear mold insert 10 move in the same direction with the front template 3; a driving device for driving the front mold plate 3 is also installed on the hot runner plate 2. Preferably, the driving means is a cylinder 14. The utility model has simple and reasonable structure, can be used for propping a product against the front die 7 by utilizing the second rear die insert 10 in the demolding process through ingenious arrangement, so that the product is not easy to be stuck on the rear die 4 due to back-off, the product is not easy to be pulled out of the die, and the production efficiency is greatly improved.
The sear comprises a sear main body 11, a sear stop block 12 and a sear spring block 13 which are matched with each other; the upper end of the button machine main body 11 is connected with the front template 3, and the lower end is provided with a hook part 111; the sear stop block 12 is connected to the rear template 4; the button machine elastic block 13 is retractably arranged on the side edge of the ejector plate 5, the outer end of the button machine elastic block is hooked by the hook part 111, the button machine elastic block 13 is correspondingly matched with the button machine stop block 12, and the specific retraction direction of the button machine elastic block 13 is horizontal retraction; a spring (not shown) matched with the button machine spring block 13 is also arranged in the thimble plate 5, and the spring can prevent the button machine spring block 13 from retreating. The front template 3 can conveniently drive the second rear mold insert 10 to move through the structure of the button machine so as to push the product against the front mold 7.
Opposite and matched inclined planes are respectively arranged on the button stop block 12 and the button spring block 13, so that the button stop block 12 can press the button spring block 13 more smoothly, and the button spring block 13 is compressed.
The button machine main body 11 is provided with a limit chute 112 with an opening at the lower end, and the button machine stop block 12 is positioned in the limit chute 112, so that the button machine can save more space and reduce the volume of equipment.
The ejector plate 5 comprises an ejector plate panel 51 and an ejector plate bottom plate 52 which are connected with each other; the button elastic block 13 is clamped on the top surface of the thimble bottom plate 52, and the thimble panel 51 presses the button elastic block 13. Specifically, a clamping groove is provided on the top surface of the thimble bottom plate 52, and one end of the button machine elastic block 13 is correspondingly clamped into the clamping groove. Through the arrangement, the button machine elastic block 13 can be installed, so that the button machine elastic block 13 is not easy to loose.
The top of the first rear mold insert 9 has a groove; the second rear mold insert 10 is located in the recess.
Preferably, the ejector plate 5 is connected with the second rear mold insert 10 through a connection rod to enhance stability, and the number of connection rods may be set according to actual needs.
In this embodiment, the button machine is provided with four groups, and the four groups of button machines are distributed around the device.
In this embodiment, a panel 1 is further disposed at the upper end of the hot runner plate 2, and a bottom plate 6 is further disposed at the lower end of the ejector plate 5.
A front mold insert fixing plate is also provided between the hot runner plate 2 and the front mold plate 3.
The following description of the principles of the utility model is provided for the purpose of understanding the utility model:
firstly, after the product is manufactured, when the front template 3 and the rear template 4 are mutually opened, the hook 111 on the button body 11 hooks the button elastic block 13 upwards in the moving process of the front template 3, so that the ejector plate 5 and the second rear die insert 10 connected with the ejector plate 5 synchronously move upwards, the second rear die insert 10 pushes the product on the front die 7, and meanwhile, the rear template 4 drives the first rear die insert 9 and the button stop block 12 to move downwards in the moving process of the rear template 4, namely, the product can be separated from the rear die 8; when the button stop block 12 contacts with the button elastic block 13, the button elastic block 13 is forced to compress inwards, so that the button main body 11 does not drive the second rear die insert 10 to move any more, and after the second rear die insert 10 is positioned, the front die 3 continues to move upwards for a certain distance and stops, namely the second rear die insert 10 moves synchronously with the front die plate 3 for a certain distance, so that a product is conveniently left on the front die 7; the front mould 3 and the rear mould 4 are opened at the moment, and then the oil cylinder 14 drives the front mould plate 3 to act, and the product is ejected out, so that demoulding is finished; at the time of mold closing, the second rear mold insert 10 is pressed back to the original position by the front mold 7.
The utility model can be used for producing and manufacturing the milk powder can cover.
The present utility model is not limited to the above-described embodiments, but, if various modifications or variations of the present utility model are not departing from the spirit and scope of the present utility model, the present utility model is intended to include such modifications and variations as fall within the scope of the claims and the equivalents thereof.
Claims (10)
1. A mechanical front and back mould demoulding structure is characterized in that:
comprises a button machine, a hot runner plate, a front template, a rear template and an ejector plate which are sequentially arranged from top to bottom; a front mold and a rear mold forming a mold cavity are respectively arranged on the front mold plate and the rear mold plate; a first rear mold insert connected with the mold cavity is fixedly arranged on the end of the rear mold facing the front mold; the first rear mold insert is also provided with a second rear mold insert which is correspondingly matched with the front mold and is connected with the thimble plate; the button machine is respectively connected with the front template, the rear template and the thimble plate, and enables the thimble plate and the second rear mold insert to move in the same direction as the front template when the front template and the rear template are opened; and a driving device for driving the front template is also arranged on the hot runner plate.
2. The mechanical front and rear mold release structure according to claim 1, wherein:
the button machine comprises a button machine main body, a button machine stop block and a button machine elastic block which are matched with each other; the upper end of the button machine main body is connected to the front template, and the lower end of the button machine main body is provided with a hook part; the button machine stop block is connected to the rear template; the button machine elastic block is telescopically arranged on the side edge of the ejector plate, the outer end of the button machine elastic block is hooked by the hook part, and the button machine elastic block is correspondingly matched with the button machine stop block; and a spring matched with the elastic block of the button machine is also arranged in the ejector plate.
3. The mechanical front and rear mold release structure according to claim 2, wherein:
the sear stop block and the sear spring block are respectively provided with an opposite and matched inclined plane.
4. The mechanical front and rear mold release structure according to claim 2, wherein:
the button machine is characterized in that a limit chute with an opening at the lower end is arranged on the button machine main body, and the button machine stop block is positioned in the limit chute.
5. The mechanical front and rear mold release structure according to claim 2, wherein:
the ejector plate comprises an ejector plate and an ejector bottom plate which are connected with each other; the button machine elastic block is clamped on the top surface of the thimble bottom plate, and the thimble panel compresses the button machine elastic block.
6. The mechanical front and rear mold release structure according to claim 5, wherein:
the top surface of the thimble bottom plate is provided with a clamping groove, and one end of the button machine elastic block is correspondingly clamped into the clamping groove.
7. The mechanical front and rear mold release structure according to claim 1, wherein:
the driving device is an oil cylinder.
8. The mechanical front and rear mold release structure according to claim 1, wherein:
the top of the first rear mold insert is provided with a groove; the second rear mold insert is located in the recess.
9. The mechanical front and rear mold release structure according to claim 8, wherein:
the ejector plate is connected with the second rear mold insert through a connecting rod.
10. The mechanical front and rear mold release structure according to claim 1, wherein:
the upper end of the hot runner plate is also provided with a panel, and the lower end of the thimble plate is also provided with a bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122945216.3U CN218948359U (en) | 2021-11-25 | 2021-11-25 | Mechanical front and rear die demolding structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122945216.3U CN218948359U (en) | 2021-11-25 | 2021-11-25 | Mechanical front and rear die demolding structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218948359U true CN218948359U (en) | 2023-05-02 |
Family
ID=86137927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122945216.3U Active CN218948359U (en) | 2021-11-25 | 2021-11-25 | Mechanical front and rear die demolding structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218948359U (en) |
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2021
- 2021-11-25 CN CN202122945216.3U patent/CN218948359U/en active Active
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