CN211729977U - Structure of in-mold gate self-breaking press-in product - Google Patents
Structure of in-mold gate self-breaking press-in product Download PDFInfo
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- CN211729977U CN211729977U CN201922346756.2U CN201922346756U CN211729977U CN 211729977 U CN211729977 U CN 211729977U CN 201922346756 U CN201922346756 U CN 201922346756U CN 211729977 U CN211729977 U CN 211729977U
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Abstract
The utility model discloses a structure of product of impressing is autotomatically cut to runner in mould, including movable mould, cover half and runner, the runner is equipped with hot-cut pneumatic cylinder and thimble on being in the cover half, and the thimble is and can freely remove along its axial and locate the movable mould, and hot-cut pneumatic cylinder can promote the thimble towards runner direction removal. Because the hot cutting hydraulic cylinder can push the thimble to move towards the direction of the arc runner gate, after pouring, the thimble presses to the product, presses the sprue gate into the product, thereby the sprue gate is traceless, does not need secondary operation, can effectively improve the surface appearance of the product.
Description
Technical Field
The utility model relates to a structure of runner product in mould, especially a structure of product is impressed from breaking of runner in mould
Background
With the increasing pace of international tracking and the increasing competition in the market, the importance of product quality, cost and new product development capacity has become more and more recognized. The mold manufacturing is one of the most basic elements in the whole chain, and the mold manufacturing technology is now an important mark for measuring the level of the manufacturing industry of a country and determines the living space of an enterprise to a great extent. Although the chinese mold industry has seen dramatic growth over the last decade, there are still significant gaps in many respects compared to industrially developed countries. For example, precision machining equipment has a relatively low specific gravity in mold machining equipment; the popularization rate of the CAD/CAE/CAM technology is not high; many advanced mold technologies are not widely used, etc., resulting in a significant portion of large, precision, complex and long-life molds relying on imports;
the sprue is used as an inlet for injecting the melt into the molding cavity when the injection molding part product is molded, directly influences the appearance, the internal quality, the dimensional precision and the molding cycle of the finished injection molding part product, and has the importance of! The design of the gate has to take important considerations: 1. the pouring and forming are convenient; 2. the appearance of the product is not influenced; 3. the combination function of each part of the product is not influenced; 4. the cut-off part of the finished product sprue is clean, neat and beautiful; 5. secondary processing is avoided to remove the sprue; 6. the mold has a simple structure, and the difficulty of mold manufacturing and mold maintenance is reduced; we have common edge gating and camber (bull horn) gating. The side gate has the biggest defect that the injected product needs to be subjected to secondary processing by removing the gate, so that the labor and the financial resources are wasted; the arc (ox horn) pouring is suitable for materials with good elasticity, the spray generated during injection is easy to generate marks on the surface of a product, and the finished product has the defects of long pouring points or pouring pits.
Disclosure of Invention
In order to overcome the defects, the utility model provides a structure of product is impressed from breaking in mould runner, this structure can avoid needing secondary operation to get rid of the runner, can one shot forming, guarantees the outward appearance and the function of runner department product, can effectively improve product surface outward appearance.
The utility model discloses a solve the technical scheme that its technical problem adopted and be: the utility model provides a structure of product is impressed from breaking in mould runner, includes movable mould, cover half and runner, and the runner is equipped with hot-cutting pneumatic cylinder and thimble on being in the cover half, and the thimble is and can freely move along its axial and locate in the movable mould, and hot-cutting pneumatic cylinder can promote the thimble and remove towards runner direction (after pouring, the thimble presses to the product, impresses the sprue gate into the product to the sprue gate is the no trace, need not no secondary operation).
The utility model discloses a further technical scheme is: the hot cutting hydraulic cylinder is fixedly arranged on the movable die.
The utility model discloses a further technical scheme is: the discharge end of the flow channel is arc-shaped (ox horn arc), so that the sprue can be thinner, and the sprue is conveniently pressed into a product by the ejector pin.
The utility model discloses a further technical scheme is: the hot cutting hydraulic cylinder comprises a cylinder body and a piston, and the piston can push the thimble to freely move along the axial direction of the thimble.
The utility model discloses a further technical scheme is: the thimble sleeve is provided with a retraction spring which can enable a space to be reserved between the head of the thimble and the sprue, the retraction spring is a tension spring, one end of the tension spring is fixed on the movable mold, and the other end of the tension spring is fixed on the thimble.
The utility model has the advantages that: because the hot cutting hydraulic cylinder can push the thimble to move towards the direction of the arc runner gate, after pouring, the thimble presses to the product, presses the sprue gate into the product, thereby the sprue gate is traceless, does not need secondary operation, can effectively improve the surface appearance of the product.
Drawings
Fig. 1 is a schematic view of the present invention.
Detailed Description
Example (b): the utility model provides a structure of product is impressed from breaking in mould runner, includes movable mould, cover half and runner, and runner 1 is equipped with hot-cutting pneumatic cylinder 2 and thimble 3 on the cover half, and the thimble is and can freely move along its axial and locate in the movable mould, and hot-cutting pneumatic cylinder can promote the thimble to move towards runner sprue 4 direction (after pouring, the thimble presses to the product, impresses the sprue gate to the sprue gate is the no trace, need not secondary operation).
The hot cutting hydraulic cylinder is fixedly arranged on the movable die.
The discharge end 5 of the flow channel is arc-shaped (ox horn arc), so that the sprue can be thinner, and the sprue is conveniently pressed into the product 6 by the ejector pin.
The hot cutting hydraulic cylinder comprises a cylinder body and a piston, and the piston can push the thimble to freely move along the axial direction of the thimble.
The thimble sleeve is provided with a retraction spring 7, which is a tension spring, one end of the tension spring is fixed on the movable mold, and the other end of the tension spring is fixed on the thimble, so that a space is left between the head of the thimble and the sprue.
The working process of the embodiment is as follows: the ejector pin utilizes the hot cutting hydraulic cylinder to control ejection of the ejector pin, a distance is reserved at the head of the ejector pin, a cavity is reserved between the sprue 6 of the runner discharging end 5 and the ejector pin and a product, the ejector pin is ejected by the action of the hot cutting hydraulic cylinder before the mold opening is finished after injection, and the sprue is pressed into the product of the fixed mold (the product has a certain temperature, and the ejector pin also keeps a certain temperature due to the hot cutting hydraulic cylinder, so that the sprue is favorably pressed into the product), so that a sprue gate is traceless, secondary processing is not needed, and the surface appearance of the product can be effectively improved.
Claims (6)
1. The utility model provides a structure of product is impressed from breaking in interior runner of mould, includes movable mould, cover half and runner, and the runner is in on the cover half, characterized by: the hot-cutting hydraulic cylinder and the ejector pin are arranged, the ejector pin can freely move along the axial direction of the ejector pin and is arranged in the movable die, and the hot-cutting hydraulic cylinder can push the ejector pin to move towards the direction of the runner gate.
2. The structure of the in-mold gate self-breaking pressed product according to claim 1, wherein: the hot cutting hydraulic cylinder is fixedly arranged on the movable die.
3. The structure of the in-mold gate self-breaking pressed product according to claim 1, wherein: the discharge end of the flow passage is arc-shaped.
4. The structure of the in-mold gate self-breaking pressed product according to claim 1, wherein: the hot cutting hydraulic cylinder comprises a cylinder body and a piston, and the piston can push the thimble to freely move along the axial direction of the thimble.
5. The structure of an in-mold gate self-breaking pressed product according to any one of claims 1 to 4, wherein: the thimble is sleeved with a retraction spring, so that a space is reserved between the head of the thimble and the sprue.
6. The structure of the in-mold gate self-breaking pressed product according to claim 5, wherein: the backspacing spring is a tension spring, one end of the tension spring is fixed on the movable mold, and the other end of the tension spring is fixed on the ejector pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922346756.2U CN211729977U (en) | 2019-12-24 | 2019-12-24 | Structure of in-mold gate self-breaking press-in product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922346756.2U CN211729977U (en) | 2019-12-24 | 2019-12-24 | Structure of in-mold gate self-breaking press-in product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211729977U true CN211729977U (en) | 2020-10-23 |
Family
ID=72869059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922346756.2U Active CN211729977U (en) | 2019-12-24 | 2019-12-24 | Structure of in-mold gate self-breaking press-in product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211729977U (en) |
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2019
- 2019-12-24 CN CN201922346756.2U patent/CN211729977U/en active Active
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