CN212400167U - Mould that product end confluence position burn was relieved - Google Patents
Mould that product end confluence position burn was relieved Download PDFInfo
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- CN212400167U CN212400167U CN202020555603.9U CN202020555603U CN212400167U CN 212400167 U CN212400167 U CN 212400167U CN 202020555603 U CN202020555603 U CN 202020555603U CN 212400167 U CN212400167 U CN 212400167U
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Abstract
A mould for removing burn at the confluence part of the tail end of a product is provided with a movable mould. And a cold trough is formed in the parting surface of the movable mold. The cold material groove is communicated with the cavity and is positioned at the tail end confluence part of the product structure. The cold trough comprises two parts, an inlet part and a stock part. The entrance part is a cuboid groove. The material storage part is a trapezoidal groove. The shortest side of the cuboid groove is connected with the tail end of the product. And an ejector rod is arranged below the cold material groove. And during molding, cold materials are injected into a cold material groove irrelevant to the product structure, so that the shortest rectangular edge in the cold material groove is connected with the tail end of the product, the strength of a contact part is reduced, the product can be manually separated after being ejected, and the appearance of the product is not influenced. The structure is simple, economical and durable, the product quality can be improved, the structure is simple, the separation is easy to break off, and the device is convenient and practical.
Description
Technical Field
The utility model relates to a be used for injection mold technical field, concretely relates to mould that the burning at terminal confluence position of product was relieved can relieve the burning at confluence position.
Background
In the world today, the application of plastic materials and products thereof has involved various industries, aspects, and even every household, and more enterprises are involved in the production and sale of plastic products.
In the prior injection molding product, materials and cold materials (such as phenolic resin) enter a cavity during material injection, and finally flow together at the tail end of the product, the cold materials are not discharged at the tail end of the product to cause product burn, and generally, gas exhaust needs to be performed at the tail end of the product to solve the problem of burn, but if the cold materials are too much, the problem cannot be solved by simply exhausting gas. It is desirable to provide a more adaptable method and structure to address the burn problem.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a mould that burning was relieved at terminal confluence position of product has solved cold burden too much, and simple exhaust of opening is the problem that can not solve the burning at terminal confluence position of product.
The technical scheme is as follows:
a mould for removing burn at the confluence part of the tail end of a product is provided with a movable mould.
The technical key points are as follows:
and a cold trough is formed in the parting surface of the movable mold.
The cold material groove is communicated with the cavity and is positioned at the tail end confluence part of the product structure.
The cold material groove comprises two parts, namely an inlet part and a material storage part.
The entrance part is a cuboid groove. The material storage part is a trapezoidal groove.
The inlet portion was 5mm long, 4mm wide and 0.06mm deep.
The whole depth of the cold material groove is 0.5 mm.
The shortest side of the cuboid groove is connected with the tail end of the product.
And an ejector rod is arranged below the cold material groove.
The advantages are that:
and during molding, cold materials are injected into a cold material groove irrelevant to the product structure, so that the shortest rectangular edge in the cold material groove is connected with the tail end of the product, the strength of a contact part is reduced, the product can be manually separated after being ejected, and the appearance of the product is not influenced. The structure is simple, economical and durable, the product quality can be improved, the structure is simple, the separation is easy to break off, and the device is convenient and practical.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is an enlarged view (without dimension indication) of a portion a in fig. 1.
Fig. 3 is a top view of the cold sink (with dimensional indicia).
Fig. 4 is a cross-sectional view (with dimensions) of the cold trough.
Fig. 5 is a top view of the cold sink (without dimensional indication).
Fig. 6 is a sectional view (without dimension marks) of the cold trough.
The device comprises a movable die 1, an inlet part 2, a material storage part 3, a cold material groove 4, an ejector rod 5, a product ejector rod 6, a fixed die 7, a sprue bush 8, a cavity 9, a product 10, a runner 11, an inclined plane 12, an ejector plate 13 and a parting surface 14.
Detailed Description
A mould for removing burn at the confluence part of the tail end of a product comprises a fixed mould 7 and a movable mould 1.
A sprue bush 8 is arranged on the side of the fixed die 7.
And a cold trough 4 is arranged on the parting surface 14 of the movable mold 1.
The cold material groove 4 is communicated with the cavity 9, and the cold material groove 4 is positioned at the tail end confluence part of the structure of the product 10 of the movable mould 1.
The cold burden trough 4 comprises two parts, an inlet part 2 and a stock part 3.
The inlet portion 2 is a rectangular parallelepiped groove.
The stock portion 3 is located below the inlet portion 2, the main section is trapezoidal, the inclined surface 12 is inclined to the outside, and the stock portion 3 is a trapezoidal groove.
The area of the upper opening of the stock portion 3 is smaller than the area of the inlet portion 2.
The inlet portion 2 was 5mm long, 4mm wide and 0.06mm deep as shown in fig. 3 and 4 (flat shape).
The cooling channel 4 has an overall depth of 0.5mm as shown in fig. 4.
The shortest side (depth 0.06 mm) of the inlet portion 2 is connected to the end of the product 10. The effect of design like this makes the cohesion of contact site minimum weakest, conveniently breaks off with the fingers and thumb and does not influence the product outward appearance.
During forming, the material and the cold material pass through the sprue bush 8 and the runner 11 and are injected into the cavity 9, and the confluence part flows into the cold material groove 4.
Product 10, when demolded:
when the product 10 is large: and the product ejector rod 6 on the ejector plate 13 extends into the cavity 9 to eject the product 10, and then the cold material formed in the cold material groove 4 is broken off manually from the tail end of the product 10, so that the qualified product 10 is obtained.
When the product 10 is small: then need set up on thimble board 13 and set up knock-out pin 5 (circular), knock-out pin 5 upper end stretches into cold silo 4, and knock-out pin 5 and product knock-out pin 6 together are ejecting with fashioned cold burden in cold silo 4 and product 10, can prevent like this that fashioned cold burden fracture is in cold silo 4, and the end of manual follow product 10 breaks the fashioned cold burden in cold silo 4 off with the fingers and thumb, obtains qualified product 10.
The product 10 is a phenolic resin (bakelite) product. In the structure, a cold material groove 4 is additionally machined at the tail end burning position, and the tail end gas is moved into the cold material groove 4, so that the tail end of a product 10 is free from burning.
Claims (6)
1. A mould for removing burn at the confluence part of the tail end of a product is provided with a movable mould (1); the method is characterized in that:
a cold material groove (4) is formed in the parting surface (14) of the movable mold (1);
the cold trough (4) is communicated with the cavity (9), and the cold trough (4) is positioned at the tail end confluence part of the product (10) structure.
2. The mold for relieving burn at the confluence portion of the ends of products according to claim 1, wherein: the cold trough (4) comprises two parts, namely an inlet part (2) and a material storage part (3).
3. The mold for relieving burn at the confluence portion of the ends of products according to claim 2, wherein: the inlet part (2) is a cuboid groove; the material storage part (3) is a trapezoidal groove.
4. The mold for relieving burn at the confluence portion of the ends of products according to claim 3, wherein:
the inlet part (2) has the dimensions of 5mm in length, 4mm in width and 0.06mm in depth;
the whole depth of the cold trough (4) is 0.5 mm.
5. The mold for relieving burn at the confluence portion of the ends of products according to claim 3, wherein: the shortest side of the cuboid groove is connected with the tail end of the product (10).
6. The mold for relieving burn at the confluence portion of the ends of products according to claim 1, wherein: an ejector rod (5) is arranged below the cold material groove (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020555603.9U CN212400167U (en) | 2020-04-15 | 2020-04-15 | Mould that product end confluence position burn was relieved |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020555603.9U CN212400167U (en) | 2020-04-15 | 2020-04-15 | Mould that product end confluence position burn was relieved |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212400167U true CN212400167U (en) | 2021-01-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020555603.9U Active CN212400167U (en) | 2020-04-15 | 2020-04-15 | Mould that product end confluence position burn was relieved |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212400167U (en) |
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2020
- 2020-04-15 CN CN202020555603.9U patent/CN212400167U/en active Active
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