CN216683114U - Efficient extrusion die - Google Patents
Efficient extrusion die Download PDFInfo
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- CN216683114U CN216683114U CN202123014239.9U CN202123014239U CN216683114U CN 216683114 U CN216683114 U CN 216683114U CN 202123014239 U CN202123014239 U CN 202123014239U CN 216683114 U CN216683114 U CN 216683114U
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- die
- injection molding
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- extrusion die
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a high-efficiency extrusion die, which comprises a lower die and an upper die, wherein the upper die is positioned at the upper end of the lower die, and the high-efficiency extrusion die is characterized in that: the upper end of the lower die is provided with a guide pillar, the middle end of the upper die is provided with an injection molding port, one side of the injection molding port is provided with an exhaust pipeline, one end of the exhaust pipeline is provided with a flash area, one side of the flash area is provided with a one-way valve, gas is driven to the flash area by molten plastic during injection molding and is discharged through the exhaust pipeline, the flash area is filled with the plastic, and even if the defects of scorching, poor filling, appearance damage, bubbles, size deviation and the like caused by unsmooth exhaust can only occur on the plastic part for filling the flash cavity, so that the real product cannot be influenced. After the injection molding is finished, the flash bag formed by the plastic in the flash cavity is removed, and then a perfect product can be obtained.
Description
Technical Field
The utility model relates to the field of injection molds, in particular to an efficient extrusion mold.
Background
People use a large amount of plastic products in life. Most plastic articles are produced by injection molding. During the injection molding process, gas exists in the mold cavity of the injection mold due to air in the mold cavity, water contained in the plastic raw material evaporating at high temperature, or plastic decomposing at high temperature. If these gases are not smoothly discharged, there are defects such as scorching, poor filling, appearance damage, bubbles, silver wires, weld lines, dimensional variations, and the like. Therefore, venting becomes a problem that must be considered in the mold design. The conventional solution for injection molds is to reduce the defect degree of products by adjusting injection molding process parameters, such as increasing injection pressure, prolonging pressure maintaining time, and the like, but such a method not only reduces production efficiency, increases energy consumption, but also has an effect on the service life of the mold, but also continuously adjusts the injection molding process parameters due to the change of raw material plastics. Another common solution is to machine venting grooves in the parting plane and injection end to a depth that does not exceed the plastic flash value, but in this way does not fully achieve good results on some products.
Therefore, it is necessary to invent a high-efficiency extrusion die to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to an efficient extrusion die, which solves the above problems of the prior art.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an efficient extrusion die, includes the lower mould and goes up the mould, it is located lower mould upper end to go up the mould, its characterized in that: the upper end of the lower die is provided with a guide pillar, the middle end of the upper die is provided with an injection molding port, one side of the injection molding port is provided with an exhaust pipeline, one end of the exhaust pipeline is provided with a flash area, and one side of the flash area is provided with a one-way valve.
Preferably, a cavity is arranged in the middle of the upper die and the lower die when the upper die and the lower die are closed.
Preferably, the bottom end inside the upper die is provided with an upper die cooling pipe, and the top end inside the lower die is provided with a lower die cooling pipe.
The utility model has the technical effects and advantages that:
according to the utility model, the lower die, the upper die, the lower die cooling pipe, the upper die cooling pipe, the cavity, the flash area, the exhaust pipeline, the one-way valve and the guide pillar are arranged, gas is driven to the flash area by molten plastic during injection molding and is exhausted through the exhaust pipeline, the flash area is filled with the plastic, even if the defects of scorching, poor filling, appearance damage, air bubbles, size deviation and the like caused by unsmooth exhaust are caused, the defects only occur at the plastic part for filling the flash cavity, and the real product is not influenced. After the injection molding is finished, the flash bag formed by the plastic in the flash cavity is removed, a complete product can be obtained, and when the injection molding is carried out, air in the mold cavity is compressed and then can be discharged out of the mold through the one-way valve, so that the damage to the product caused by the formation of high-temperature and high-pressure gas in the mold cavity is avoided, and the yield of the product is effectively improved.
Drawings
Fig. 1 is a cross-sectional view of the present invention.
In the figure: 1 lower die, 2 upper die, 3 lower die cooling pipes, 4 upper die cooling pipes, 5 cavities, 6 flash areas, 7 exhaust pipelines, 8 exhaust pipelines, 9 one-way valves and 10 guide pillars.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The utility model provides a high-efficiency extrusion die as shown in figure 1, which comprises a lower die 1 and an upper die 2, wherein the upper die 2 is positioned at the upper end of the lower die 1, and the high-efficiency extrusion die is characterized in that: the upper end of the lower die 1 is provided with a guide pillar 10, the middle end of the upper die 2 is provided with an injection molding opening 8, an exhaust pipeline 7 is arranged on one side of the injection molding opening 8, one end of the exhaust pipeline 7 is provided with a flash area 6, and one side of the flash area 6 is provided with a one-way valve 9.
1. Further, in the above technical scheme, a cavity 5 is arranged in the middle of the upper die 2 and the lower die 1 when the dies are assembled;
further, in the above technical scheme, an upper mold cooling pipe 4 is arranged at the bottom end inside the upper mold 2, and a lower mold cooling pipe 3 is arranged at the top end inside the lower mold 1.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.
Claims (3)
1. The utility model provides an efficient extrusion die, includes lower mould (1) and last mould (2), it is located lower mould (1) upper end to go up mould (2), its characterized in that: the mold is characterized in that a guide pillar (10) is arranged at the upper end of the lower mold (1), an injection molding opening (8) is formed in the middle end of the upper mold (2), an exhaust pipeline (7) is arranged on one side of the injection molding opening (8), a flash area (6) is arranged at one end of the exhaust pipeline (7), and a check valve (9) is arranged on one side of the flash area (6).
2. A high efficiency extrusion die as set forth in claim 1, wherein: and a cavity (5) is arranged in the middle of the upper die (2) and the lower die (1) when the dies are closed.
3. A high efficiency extrusion die as set forth in claim 1, wherein: go up the inside bottom of mould (2) and be equipped with mould cooling tube (4), the inside top of lower mould (1) is provided with lower mould cooling tube (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123014239.9U CN216683114U (en) | 2021-12-03 | 2021-12-03 | Efficient extrusion die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123014239.9U CN216683114U (en) | 2021-12-03 | 2021-12-03 | Efficient extrusion die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216683114U true CN216683114U (en) | 2022-06-07 |
Family
ID=81837096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123014239.9U Active CN216683114U (en) | 2021-12-03 | 2021-12-03 | Efficient extrusion die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216683114U (en) |
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2021
- 2021-12-03 CN CN202123014239.9U patent/CN216683114U/en active Active
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