CN112339233A

CN112339233A - Cooling mechanism of injection mold die body

Info

Publication number: CN112339233A
Application number: CN202011188093.7A
Authority: CN
Inventors: 何翠珊
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-02-09

Abstract

The invention discloses a cooling mechanism of a concave die body of an injection die, which comprises the concave die body, wherein a concave die cavity is formed on the concave die body, a cooling cavity is formed at the outer side of the concave die cavity, a cooling liquid conveying block is fixed in the cooling cavity, and a groove matched with the outer wall of the concave die cavity is formed in the cooling liquid conveying block; the upper inner wall and the lower inner wall of the groove are respectively provided with a water outlet collecting groove and a water inlet shunting groove, and a water outlet flow passage communicated with the water outlet collecting groove and a water inlet flow passage communicated with the water inlet shunting groove are formed in the cooling liquid conveying block; a plurality of annular grooves are formed in the outer side wall of the concave die cavity, the upper ends of the annular grooves are communicated with a water outlet collecting groove, and the lower ends of the annular grooves are communicated with a water inlet distributing groove. According to the invention, the circulating cooling water is arranged on the outer side of the cavity of the female die, so that the die is rapidly cooled, the processing efficiency can be effectively improved, and the product quality of plastic products is improved.

Description

Cooling mechanism of injection mold die body

Technical Field

The invention relates to the technical field of injection molds, in particular to a cooling mechanism for a concave mold body of an injection mold.

Background

An injection mold is a tool for producing plastic products and also a tool for giving the plastic products complete structure and precise dimensions. Injection molding is a process used to mass produce parts of some complex shapes. Specifically, the plastic melted by heating is injected into a mold cavity from an injection molding machine at high pressure, and a formed product is obtained after cooling and solidification. The existing injection mold equipment has certain defects when in use, and the mold can generate higher temperature after the processing is finished, so that plastic products can not be rapidly cooled, solidified and molded, the processing efficiency is reduced, and the plastic products are easily deformed and patterned, thereby bringing certain influence.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a cooling mechanism for a concave die body of an injection die, which is used for rapidly cooling the die by arranging circulating cooling water on the outer side of the concave die cavity, so that the processing efficiency can be effectively improved, and the product quality of plastic products can be improved.

The scheme for solving the technical problems is as follows:

a cooling mechanism of a concave die body of an injection die comprises the concave die body, wherein a concave die cavity is formed on the concave die body, a cooling cavity is formed on the outer side of the concave die cavity, a cooling liquid conveying block is fixed in the cooling cavity, and a groove matched with the outer wall of the concave die cavity is formed in the cooling liquid conveying block; the upper inner wall and the lower inner wall of the groove are respectively provided with a water outlet collecting groove and a water inlet shunting groove, and a water outlet flow passage communicated with the water outlet collecting groove and a water inlet flow passage communicated with the water inlet shunting groove are formed in the cooling liquid conveying block;

a plurality of annular grooves are formed in the outer side wall of the concave die cavity, the upper ends of the annular grooves are communicated with a water outlet collecting groove, and the lower ends of the annular grooves are communicated with a water inlet distributing groove.

And a plurality of U-shaped grooves are formed on the outer wall of the bottom of the concave die cavity, and two ends of each U-shaped groove are respectively communicated with the upper end and the lower end of the adjacent annular groove.

And a sealing ring is clamped between the end surface of the cooling liquid conveying block and the bottom surface of the cooling cavity.

The water outlet channel comprises a first through hole and a first counter bore which are vertically arranged and mutually communicated, the inner end of the first through hole is communicated with the water outlet collecting groove, and the outer end of the first through hole is fixedly provided with a first plug; the water inlet flow channel comprises a second through hole and a second counter bore which are vertically arranged and mutually communicated, the inner end of the second through hole is communicated with the water inlet diversion channel, and a second plug is fixed at the outer end of the second through hole.

A water outlet pipe connecting hole is formed at the opening part of the first counter bore; and a water inlet pipe connecting hole is formed at the opening part of the second counter bore.

The contour of each annular groove is similar to the contour of the inner wall of the position of the corresponding female die cavity.

The wall thickness between the bottom surface of each U-shaped groove and the bottom surface of the female die cavity is equal.

The invention has the following outstanding effects: compared with the prior art, it sets up the cooling water of circulation through the outside at the die cavity to carry out rapid cooling to the mould, can effectively improve machining efficiency, improve plastic products's product quality.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a left side view of the present invention;

FIG. 3 is a cross-sectional view of FIG. 1 taken about A-A;

fig. 4 is a cross-sectional view of fig. 1 taken about B-B.

Detailed Description

In an embodiment, as shown in fig. 1 to 4, a cooling mechanism for a cavity body of an injection mold includes a cavity body 1, a cavity 11 is formed on the cavity body 1, a cooling cavity 12 is formed outside the cavity 11, a cooling liquid conveying block 2 is fixed in the cooling cavity 12, and a groove 21 matched with an outer wall of the cavity 11 is formed in the cooling liquid conveying block 2; an outlet water collecting groove 22 and an inlet water distributing groove 23 are respectively formed on the upper inner wall and the lower inner wall of the groove 21, and an outlet water channel 24 communicated with the outlet water collecting groove 22 and an inlet water channel 25 communicated with the inlet water distributing groove 23 are formed in the cooling liquid conveying block 2;

a plurality of annular grooves 13 are formed on the outer side wall of the concave die cavity 11, the upper ends of the annular grooves 13 are communicated with a water outlet collecting groove 22, and the lower ends of the annular grooves 13 are communicated with a water inlet distributing groove 23.

Furthermore, a plurality of U-shaped grooves 14 are formed on the outer wall of the bottom of the cavity 11, and two ends of each U-shaped groove 13 are respectively communicated with the upper end and the lower end of an adjacent annular groove 13.

Furthermore, a seal ring 3 is clamped between the end surface of the cooling liquid delivery block 2 and the bottom surface of the cooling cavity 12.

Furthermore, the water outlet channel 24 includes a first through hole 241 and a first counter bore 242 which are vertically arranged and are communicated with each other, the inner end of the first through hole 241 is communicated with the water outlet collecting groove 22, and the outer end of the first through hole 241 is fixed with a first plug 243; the water inlet flow passage 25 comprises a second through hole 251 and a second counter bore 252 which are vertically arranged and mutually communicated, the inner end of the second through hole 251 is communicated with the water inlet flow dividing groove 23, and a second plug 253 is fixed at the outer end of the second through hole 251.

Furthermore, an outlet pipe connecting hole 244 is formed at the mouth of the first counter bore 242; the mouth of the second counterbore 252 is formed with an inlet tube connecting hole 254.

Furthermore, each annular groove 13 has a profile similar to the profile of the inner wall of the corresponding die cavity 11 in which it is located.

Furthermore, the wall thickness between the bottom surface of each U-shaped groove 14 and the bottom surface of the die cavity 11 is equal.

The working principle is as follows: the inlet pipe connection hole 254 is connected to an external cooling water inlet pipe, and the outlet pipe connection hole 244 is connected to an external cooling water return pipe;

after the plastic product is pressed in the female die cavity 11, cooling water enters the water inlet air flow groove 23 through the water inlet flow channel 25, water in the water inlet air flow groove 23 enters each annular groove 13 in multiple paths respectively, the water level of the cooling water in each annular groove 13 continuously rises along with the continuous inflow of the cooling water, and the cooling water converges in the water outlet collecting groove when reaching the upper end of each annular groove 13 and then flows out of the cooling water return pipe through the water outlet flow channel 24; meanwhile, as the U-shaped grooves 14 are communicated with the annular groove 13 at the outermost side, the water level of the cooling water in the plurality of U-shaped grooves is increased; the female die cavity is rapidly cooled by cooling water flowing through the annular groove and the U-shaped groove, so that the cooling efficiency of the plastic product can be effectively improved.

Finally, the above embodiments are only for illustrating the present invention and not for limiting the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, so that all equivalent technical solutions also belong to the scope of the present invention, and the scope of the present invention should be defined by the claims.

Claims

1. The utility model provides a cooling body of injection mold die body, includes die body (1), and the shaping has die cavity (11) on die body (1), its characterized in that: a cooling cavity (12) is formed on the outer side of the concave die cavity (11), a cooling liquid conveying block (2) is fixed in the cooling cavity (12), and a groove (21) matched with the outer wall of the concave die cavity (11) is formed in the cooling liquid conveying block (2); an outlet water collecting groove (22) and an inlet water shunt groove (23) are respectively formed on the upper inner wall and the lower inner wall of the groove (21), and an outlet water channel (24) communicated with the outlet water collecting groove (22) and an inlet water channel (25) communicated with the inlet water shunt groove (23) are formed in the cooling liquid conveying block (2);

a plurality of annular grooves (13) are formed in the outer side wall of the concave die cavity (11), the upper ends of the annular grooves (13) are communicated with a water outlet collecting groove (22), and the lower ends of the annular grooves (13) are communicated with a water inlet distributing groove (23).

2. The cooling mechanism for an injection mold cavity body of claim 1, wherein: a plurality of U-shaped grooves (14) are formed in the outer wall of the bottom of the concave die cavity (11), and two ends of each U-shaped groove (13) are communicated with the upper end and the lower end of the adjacent annular groove (13) respectively.

3. The cooling mechanism for an injection mold cavity body of claim 1, wherein: and a sealing ring (3) is clamped between the end surface of the cooling liquid conveying block (2) and the bottom surface of the cooling cavity (12).

4. The cooling mechanism for an injection mold cavity body of claim 1, wherein: the water outlet channel (24) comprises a first through hole (241) and a first counter bore (242) which are vertically arranged and communicated with each other, the inner end of the first through hole (241) is communicated with the water outlet collecting groove (22), and a first plug (243) is fixed at the outer end of the first through hole (241); the water inlet flow channel (25) comprises a second through hole (251) and a second counter bore (252) which are vertically arranged and are communicated with each other, the inner end of the second through hole (251) is communicated with the water inlet flow dividing groove (23), and a second plug (253) is fixed at the outer end of the second through hole (251).

5. The cooling mechanism for an injection mold cavity body of claim 4, wherein: a water outlet pipe connecting hole (244) is formed at the opening part of the first counter bore (242); the mouth of the second counter bore (252) is formed with a water inlet pipe connecting hole (254).

6. The cooling mechanism for an injection mold cavity body of claim 1, wherein: the contour of each annular groove (13) is similar to the contour of the inner wall of the corresponding die cavity (11).

7. A cooling mechanism for an injection mold cavity body as claimed in claim 2, wherein: the wall thickness between the bottom surface of each U-shaped groove (14) and the bottom surface of the cavity (11) is equal.