CN111633932A - Opposite-sex is along with shape cooling water route and mould core mold insert and mould - Google Patents
Opposite-sex is along with shape cooling water route and mould core mold insert and mould Download PDFInfo
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- CN111633932A CN111633932A CN202010496426.6A CN202010496426A CN111633932A CN 111633932 A CN111633932 A CN 111633932A CN 202010496426 A CN202010496426 A CN 202010496426A CN 111633932 A CN111633932 A CN 111633932A
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- pipe
- section
- cooling water
- spiral
- spiral pipe
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
- B29C45/7312—Construction of heating or cooling fluid flow channels
Abstract
The invention relates to an opposite-sex conformal cooling water path, a mold core insert and a mold, which are formed by connecting a plurality of sections of pipelines in space and comprise a first straight pipe, a first arc pipe, a spiral pipe and a V-shaped pipe, wherein one end of the first straight pipe is used as a water inlet, the other end of the first straight pipe is connected with the spiral pipe through the first arc pipe, the first section of the spiral pipe is connected with the first end of the V-shaped pipe, the second end of the V-shaped pipe is connected with the second section of the spiral pipe, the first section of the spiral pipe and the second section of the spiral pipe are mutually surrounded to enable the spiral pipe to form a double spiral shape, and the second section of the spiral pipe is communicated with a water outlet. The invention is beneficial to improving the cooling efficiency, shortening the molding period, improving the dimensional precision of products and reducing the generation of the reduction printing defects.
Description
Technical Field
The invention relates to the technical field of injection molding dies, in particular to an opposite-nature conformal cooling water path, a die core insert and a die.
Background
As is known, injection molding is an efficient method for manufacturing plastic parts, and the guarantee for realizing high-efficiency molding is an injection molding mold. The injection molding process comprises four stages of mold closing, injection, pressure maintaining and cooling, wherein in the whole injection molding cycle, the cooling takes the longest time, and the cooling takes about 3/4 times of the whole cycle. Therefore, the key to improving the production efficiency is how to reduce the cooling time, so the cooling efficiency needs to be improved. In addition, the different cooling rates at different parts can cause uneven shrinkage of the plastic parts due to different structures of the plastic parts. To obtain more uniform cooling, the temperature of the mold cavity must be kept substantially uniform at all locations, and therefore, the uniformity of the temperature distribution of the mold cavity is another key factor controlling the cooling of the plastic part, and this factor mainly affects the performance of the plastic part.
The traditional cooling water channels (such as jet flow type, bushing type and clapboard type) can not realize the uniform cooling of parts, and the processing is realized by drilling or adopting a mosaic type mould structure, the drilling can only process linear cooling water channels, and plastic products often have complex curved surface structures, so the distances between the linear cooling water channels and the surface of a cavity are unequal, the uniform cooling of the parts is difficult to realize, and the formed products have poor performance.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the problems of poor cooling effect and poor performance of the formed product in the prior art, so that the opposite-nature conformal cooling water path, the mold core insert and the mold which have good cooling effect and can improve the performance of the product are provided.
In order to solve the technical problems, the opposite-sex conformal cooling water channel is formed by connecting a plurality of sections of pipelines in space and comprises a first straight pipe, a first arc pipe, a spiral pipe and a V-shaped pipe, wherein one end of the first straight pipe is used as a water inlet, the other end of the first straight pipe is connected with the spiral pipe through the first arc pipe, the first section of the spiral pipe is connected with the first end of the V-shaped pipe, the second end of the V-shaped pipe is connected with the second section of the spiral pipe, the first section of the spiral pipe and the second section of the spiral pipe are mutually surrounded to enable the spiral pipe to form a double spiral shape, and the second section of the spiral pipe is communicated with a water outlet.
In one embodiment of the invention, the second section of the spiral pipe is connected with a second straight pipe, the second straight pipe is connected with a fifth straight pipe sequentially through a third straight pipe and a fourth straight pipe, and the output section of the fifth straight pipe is a water outlet.
In one embodiment of the present invention, the fourth linear pipe is connected to the fifth linear pipe through a second circular arc pipe.
In one embodiment of the invention, the cross-section of the multi-length pipe is elliptical.
The invention also discloses a mold core insert which comprises an insert body and the opposite-nature conformal cooling water path, wherein the opposite-nature conformal cooling water path is positioned in the insert body.
In one embodiment of the invention, the distance of the unlike conformal cooling water path from the surface of the product is equal everywhere.
In an embodiment of the present invention, a core is further disposed on the insert body, and the water inlet and the water outlet are respectively disposed on two sides of the core.
In one embodiment of the present invention, the insert body is provided with an inlet gate.
In one embodiment of the invention, the mold-core insert is manufactured by 3D printing molding techniques.
The invention also provides a mold comprising the mold-core insert of any of the above.
Compared with the prior art, the technical scheme of the invention has the following advantages:
the opposite-sex conformal cooling water path, the mold core insert and the mold are formed by connecting a plurality of sections of pipelines in space, and comprise a first straight pipe, a first arc pipe, a spiral pipe and a V-shaped pipe, wherein one end of the first straight pipe is used as a water inlet, the other end of the first straight pipe is connected with the spiral pipe through the first arc pipe, so that the cooling water can flow smoothly, the formation of a flow dead angle is avoided, the cooling efficiency is improved, the first section of the spiral pipe is connected with the first end of the V-shaped pipe, the second end of the V-shaped pipe is connected with the second section of the spiral pipe, the first section of the spiral pipe and the second section of the spiral pipe are mutually encircled to form a double spiral shape, so that the spiral pipe is matched with a mold core to form a ball head part, the size precision of a product is improved, and the second section of the spiral, therefore, the flow of cooling water is realized, the whole device is not only beneficial to reducing the generation of the reduction printing defects and improving the production efficiency, but also can reduce the manufacturing cost of products.
Drawings
In order that the present disclosure may be more readily and clearly understood, reference is now made to the following detailed description of the embodiments of the present disclosure taken in conjunction with the accompanying drawings, in which
FIG. 1 is a schematic view of an anisotropic conformal cooling water circuit of the present invention;
fig. 2 is a schematic view of the mold-core insert of the present invention.
The specification reference numbers indicate: 10-an opposite-sex conformal cooling water path, 11-a first straight pipe, 11A-a water inlet, 12-a first arc pipe, 13-a solenoid, 13A-a first section of the solenoid, 13B-a second section of the solenoid, 14-a V-shaped pipe, 15-a second straight pipe, 16-a third straight pipe, 17-a fourth straight pipe, 18-a fifth straight pipe, 18A-a water outlet, 19-a second arc pipe, 20-an insert body, 21-a mold core and 22-a sprue.
Detailed Description
Example one
As shown in fig. 1, the present embodiment provides an opposite-sex conformal cooling water path 10, which is formed by connecting multiple sections of pipelines in space, and includes a first straight pipe 11, a first circular pipe 12, a spiral pipe 13 and a V-shaped pipe 14, wherein one end of the first straight pipe 11 is used as a water inlet, the other end of the first straight pipe 11 is connected to the spiral pipe 13 through the first circular pipe 12, a first section 13A of the spiral pipe 13 is connected to a first end of the V-shaped pipe 14, a second end of the V-shaped pipe 14 is connected to a second section 13B of the spiral pipe 13, the first section 13A of the spiral pipe 13 and the second section 13B of the spiral pipe 13 are mutually surrounded to make the spiral pipe 13 form a double-spiral shape, and the second section 13B of the spiral pipe 13 is communicated with a water outlet 18A.
The opposite sex is followed shape cooling water route 10 of this embodiment, by the multistage pipeline at the space continuous constitution, including first straight-line pipe 11, first circular arc pipe 12, spiral pipe 13 and V type pipe 14, wherein the water inlet 11A is regarded as to the one end of first straight-line pipe 11, the other end of first straight-line pipe 11 pass through first circular arc pipe 12 with spiral pipe 13 links to each other to be favorable to making cooling water flow smoothly, avoid forming the dead angle that flows, be favorable to improving cooling efficiency, first section 13A of spiral pipe 13 with the first end of V type pipe 14 links to each other, and the second end of V type pipe 14 with the second section 13B of spiral pipe 13 links to each other, first section 13A of spiral pipe 13 with second section 13B of spiral pipe 13 encircles each other and makes spiral pipe 13 constitutes two heliciform, thereby is favorable to forming bulb part with the core cooperation of mould, the size precision of the product is improved, the second section 13B of the spiral pipe 13 is communicated with the water outlet 18A, so that the flow of cooling water is realized, the whole device is not only beneficial to reducing the generation of the reduction printing defects and improving the production efficiency, but also can reduce the manufacturing cost of the product.
The second section of spiral pipe 13 links to each other with second straight line pipe 15, second straight line pipe 15 loops through third straight line pipe 16, fourth straight line pipe 17 and links to each other with fifth straight line pipe 18, just delivery port 18A does the output section of fifth straight line pipe 18 to be favorable to improving cooling efficiency.
The fourth straight line pipe 17 is connected with the fifth straight line pipe 18 through the second circular arc pipe 19, so that cooling water flows smoothly, a flowing dead angle is avoided, and the improvement of cooling efficiency is facilitated.
The cross section of the multi-section pipeline is elliptical, so that the water path surface area is increased, and the cooling efficiency is improved.
In this embodiment, the irregular conformal cooling water channel 10 may be changed according to the size of a component with a similar shape, the area of the cross section of the irregular conformal cooling water channel 10 may be increased along with the increase of the component, the length of the water channel may also be lengthened along with the increase of the component, and in order to be suitable for the cooling of the component, the water channel may be cut off after being lengthened, and a water inlet and a water outlet are added. If the size of the part changes, the length and the cross-sectional area of the waterway can also change. In addition, the unlike-the-nature conformal cooling water channel 10 is manufactured by adopting a 3D printing technology.
Example two
As shown in fig. 1 and 2, the present embodiment provides a mold core insert, which includes an insert body 20 and the unlike conformal cooling water path 10 according to the first embodiment, and the unlike conformal cooling water path 20 is located in the insert body 10.
The mold core insert of the present embodiment includes an insert body 20 and a cooling water channel 10 with a different shape according to the first embodiment located in the insert body 10, so as to facilitate forming a ball head part and improve the dimensional accuracy of a product.
The distance from the opposite-sex conformal cooling water channel 10 to the surface of the product is equal everywhere, which is not only beneficial to reducing the generation of the contraction print defects and improving the production efficiency, but also can reduce the manufacturing cost of the product.
The insert body 20 is further provided with a core 21, and the water inlet and the water outlet are respectively arranged on two sides of the core 21, so that a product is cooled in the product forming process, the product size precision is improved, and the generation of reduction printing defects is reduced.
The insert body 20 is provided with a gate 22, which is matched with the core 21 to form a ball head part.
The mold core insert is manufactured by a 3D printing forming technology and comprises the following steps:
the first step is as follows: establishing a center line of a conformal cooling water channel three-dimensional pipeline along the shape trend of the plastic part through three-dimensional CAD software, enabling the distance between the center line of the pipeline and the surface of the plastic part to be equal everywhere, selecting one end of the center line, establishing a plane vertical to the center line to create an ellipse, and generating a three-dimensional pipeline entity by sweeping the ellipse line along the center line;
the second step is that: dividing a mold in three-dimensional CAD software, establishing a three-dimensional model of the core insert, and performing Boolean operation on the three-dimensional model and the three-dimensional pipeline obtained in the first step to obtain a three-dimensional model of the core insert with a conformal cooling water channel;
the third step: punching a hole at the position of an inlet gate in three-dimensional CAD software, and designing a mold core insert with the inlet gate and a conformal cooling water path;
the fourth step: and manufacturing the special-shaped conformal cooling water path mold core insert by using a selective laser sintering molding technology.
The invention can shorten the molding period of the ball head part by more than 5-10 s, improve the production efficiency, reduce the manufacturing cost of the product, improve the dimensional precision of the product and reduce the generation of the reduction printing defect through experimental verification.
EXAMPLE III
A mold is provided in this embodiment comprising the mold-core insert of embodiment two.
The mold of this embodiment includes the mold core insert of embodiment two, and therefore, the advantages of embodiment two are also all present in this application.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (10)
1. The utility model provides an opposite sex is along with shape cooling water route which characterized in that: constitute by the multistage pipeline links to each other in the space, including first straight-line pipe, first circular arc pipe, spiral pipe and V type pipe, wherein the one end of first straight-line pipe is as the water inlet, the other end of first straight-line pipe passes through first circular arc pipe with the spiral pipe links to each other, the first section of spiral pipe with the first end of V type pipe links to each other, just the second end of V type pipe with the second section of spiral pipe links to each other, the first section of spiral pipe with the second section of spiral pipe encircles each other and makes the spiral pipe constitutes two heliciform, the second section of spiral pipe communicates with each other with the delivery port.
2. The unlike conformal cooling water path of claim 1, wherein: the second section of spiral pipe links to each other with the straight line pipe of second, the straight line pipe of second loops through the straight line pipe of third, the straight line pipe of fourth and links to each other with the straight line pipe of fifth, just the output section of straight line pipe of fifth is the delivery port.
3. The unlike conformal cooling water path of claim 2, wherein: the fourth straight line pipe is connected with the fifth straight line pipe through a second circular arc pipe.
4. The unlike conformal cooling water path of claim 1, wherein: the cross section of each multi-section pipeline is oval.
5. A mold core insert characterized by: the insert comprises an insert body and the unlike conformal cooling water path of any one of claims 1-4, wherein the unlike conformal cooling water path is positioned in the insert body.
6. The mold core insert according to claim 5, wherein: the distance from the different-shape following cooling water path to the surface of the product is equal everywhere.
7. The mold core insert according to claim 5, wherein: the insert body is further provided with a core, and the water inlet and the water outlet are respectively arranged on two sides of the core.
8. The mold core insert according to claim 5, wherein: and a sprue is arranged on the insert body.
9. The mold core insert according to claim 5, wherein: the mold core insert is manufactured by 3D printing molding techniques.
10. A mold, characterized in that: comprising the mold core insert of any one of claims 5-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010496426.6A CN111633932A (en) | 2020-06-03 | 2020-06-03 | Opposite-sex is along with shape cooling water route and mould core mold insert and mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010496426.6A CN111633932A (en) | 2020-06-03 | 2020-06-03 | Opposite-sex is along with shape cooling water route and mould core mold insert and mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111633932A true CN111633932A (en) | 2020-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010496426.6A Pending CN111633932A (en) | 2020-06-03 | 2020-06-03 | Opposite-sex is along with shape cooling water route and mould core mold insert and mould |
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| CN (1) | CN111633932A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114474634A (en) * | 2022-01-19 | 2022-05-13 | 武汉轻工大学 | Optimized design of cooling system of round cover injection mold |
| CN114474636A (en) * | 2022-02-11 | 2022-05-13 | 武汉轻工大学 | Combined cooling system of injection mold |
-
2020
- 2020-06-03 CN CN202010496426.6A patent/CN111633932A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114474634A (en) * | 2022-01-19 | 2022-05-13 | 武汉轻工大学 | Optimized design of cooling system of round cover injection mold |
| CN114474636A (en) * | 2022-02-11 | 2022-05-13 | 武汉轻工大学 | Combined cooling system of injection mold |
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