CN112339234A

CN112339234A - Injection mold cooling system convenient for demolding

Info

Publication number: CN112339234A
Application number: CN202011192788.2A
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 an injection mold cooling system convenient for demolding, which comprises a female mold and a male mold, wherein cooling water flow passages are arranged on the inner side of a mold core of the male mold and the outer side of a cavity of the female mold, cooling water enters from a water inlet main flow passage of a water turning part of the cooling water, then the cooling water is divided into two paths to respectively flow to the inner side of the mold core of the male mold and the outer side of the cavity of the female mold, and finally the cooling water is conveyed between the male mold and the female mold through a conduit by the water outlet main flow passage of the water turning part of the cooling water. The invention can accelerate the cooling time of the plastic product by rapidly cooling the cavity and the core, thereby improving the demoulding quality of the plastic product and simultaneously improving the production efficiency of the plastic product.

Description

Injection mold cooling system convenient for demolding

Technical Field

The invention relates to the technical field of injection molds, in particular to an injection mold cooling system convenient for demolding.

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 provide the injection mold cooling system convenient for demolding, which can be used for accelerating the cooling time of a plastic product by rapidly cooling the cavity and the core, improving the demolding quality of the plastic product and improving the production efficiency of the plastic product.

The scheme for solving the technical problems is as follows:

an injection mold cooling system convenient for demolding comprises a female mold and a male mold which are arranged on the left and right, wherein two guide pipes which are arranged up and down are fixed on the female mold, and the guide pipes are inserted and sleeved in guide holes of the male mold;

the female die is formed with a die cavity with a right opening and a first cooling cavity with a left opening, a plurality of first annular grooves are formed in the outer wall of the die cavity, a cooling water rotating part is fixed in the first cooling cavity, grooves matched with the outer wall of the die cavity are formed in the cooling water rotating part, and U-shaped sinking grooves are formed in the grooves;

a water outlet main runner and a water inlet main runner which are vertically arranged and communicated with the U-shaped sink are formed in the water turning part of the cooling water;

the guide pipe at the upper side is communicated with the water outlet main flow channel, and the guide pipe at the lower side is communicated with the water inlet main flow channel;

the male die is provided with a mold core protruding towards the left side and a second cooling cavity with an opening at the right side, and a plurality of second annular grooves, upper through grooves penetrating the upper ends of the second annular grooves and lower through grooves penetrating the lower ends of the second annular grooves are formed in the inner wall of the left side of the second cooling cavity;

a water outlet branch flow passage communicated with the upper through groove and a water inlet branch flow passage communicated with the lower through groove are arranged in the cooling water branch and rotation part in the second cooling cavity;

an upper channel communicated with the water outlet branch flow channel is formed on the lower side wall of the guide hole on the upper side, and a lower channel communicated with the water inlet branch flow channel is formed on the upper side wall of the guide hole on the lower side.

A first vertical hole and a second vertical hole which are arranged in a left-right mode and penetrate through the cooling water supporting and rotating part in the vertical direction, and a first transverse hole and a second transverse hole which are arranged in an up-down mode and penetrate through the first vertical hole and the second vertical hole are formed in the cooling water supporting and rotating part;

a first plugging column is fixed in the middle of the first vertical hole, and a second plugging column is fixed in the middle of the second vertical hole;

a third plugging column is fixed at the outer opening part of the first transverse hole, and a fourth plugging column is fixed at the outer opening part of the second transverse hole;

the water outlet branch flow channel is formed by enclosing the upper end of the first vertical hole, the upper end of the second vertical hole, the first transverse hole, the upper end of the first blocking column, the upper end of the second blocking column and the third blocking column;

the water inlet branch flow channel is formed by enclosing the lower end of the first vertical hole, the lower end of the second vertical hole, the first transverse hole, the lower end of the first blocking column, the lower end of the second blocking column and the fourth blocking column.

And a gap is reserved between the left end of the cooling water supporting part and the left side wall of the second cooling cavity, and the gap is communicated with the upper through groove and the lower through groove.

And a sealing ring or a sealing gasket is clamped between the right end surface of the water turning part of the cooling water and the right side wall of the first cooling cavity.

A first rectangular groove is formed in the lower side wall of the guide hole in the upper side, and a first through hole communicated with the water outlet branch flow channel is formed in the bottom surface of the first rectangular groove; the upper channel consists of a first rectangular groove and a first through hole;

a second rectangular groove is formed in the upper side wall of the guide hole on the lower side, and a second through hole communicated with the water inlet branch flow passage is formed in the bottom surface of the second rectangular groove; the lower channel is composed of a second rectangular groove and a second through hole.

A water outlet pipe connecting hole is formed in the left opening of the water outlet main channel; and a water inlet pipe connecting hole is formed in the opening part on the left side of the water inlet main runner.

The invention has the following outstanding effects: compared with the prior art, the cooling time of the plastic product is shortened by rapidly cooling the cavity and the core, so that the demolding quality of the plastic product can be improved, and the production efficiency of the plastic product is improved.

Drawings

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

FIG. 2 is a schematic flow diagram of cooling water;

FIG. 3 is a schematic view of the mold opening of the present invention.

Detailed Description

In the embodiment, as shown in fig. 1 to 3, an injection mold cooling system convenient for demolding comprises a female mold 1 and a male mold 2 which are arranged at left and right, wherein two guide pipes 3 which are arranged up and down are fixed on the female mold 1, and the guide pipes 3 are inserted and sleeved in guide holes 21 of the male mold 2;

the female die 1 is provided with a die cavity 11 with a right opening and a first cooling cavity 12 with a left opening, a plurality of first annular grooves 13 are formed in the outer wall of the die cavity 11, a cooling water transferring part 4 is fixed in the first cooling cavity 12, a groove 41 matched with the outer wall of the die cavity 11 is formed in the cooling water transferring part 4, and a U-shaped sinking groove 42 is formed in the groove 41;

a main water outlet channel 43 and a main water inlet channel 44 which are vertically arranged and communicated with the U-shaped sink 42 are formed in the cooling water transferring part 4;

the upper guide pipe 3 is communicated with the main water outlet channel 43, and the lower guide pipe 3 is communicated with the main water inlet channel 44;

the male die 2 is provided with a core 22 protruding leftwards and a second cooling cavity 23 with an opening at the right side, and a plurality of second annular grooves 24, upper through grooves 25 penetrating the upper ends of the plurality of second annular grooves 24 and lower through grooves 26 penetrating the lower ends of the plurality of second annular grooves 24 are formed on the inner wall at the left side of the second cooling cavity 23;

a cooling water branch and rotation part 5 is arranged in the second cooling cavity 23, and a water outlet branch flow passage 51 communicated with the upper through groove 25 and a water inlet branch flow passage 52 communicated with the lower through groove 26 are arranged in the cooling water branch and rotation part 5;

an upper passage 27 communicating with the outlet branch flow passage 51 is formed on the lower side wall of the upper guide hole 21, and a lower passage 28 communicating with the inlet branch flow passage 52 is formed on the upper side wall of the lower guide hole 21.

Furthermore, a first vertical hole 501 and a second vertical hole 502 which are arranged in a left-right manner and penetrate through the cooling water supporting part 5 in the vertical direction, and a first transverse hole 503 and a second transverse hole 504 which are arranged in an up-down manner and penetrate through the first vertical hole 501 and the second vertical hole 502 are formed in the cooling water supporting part 5;

a first blocking column 505 is fixed in the middle of the first vertical hole 501, and a second blocking column 506 is fixed in the middle of the second vertical hole 502;

a third blocking column 507 is fixed at the outer opening part of the first transverse hole 503, and a fourth blocking column 508 is fixed at the outer opening part of the second transverse hole 504;

the outlet branch flow passage 51 is formed by enclosing the upper end of a first vertical hole 501, the upper end of a second vertical hole 502, a first transverse hole 503, the upper end of a first blocking column 505, the upper end of a second blocking column 506 and a third blocking column 507;

the water inlet branch flow channel 52 is formed by enclosing the lower end of a first vertical hole 501, the lower end of a second vertical hole 502, a first transverse hole 503, the lower end of a first blocking column 505, the lower end of a second blocking column 506 and a fourth blocking column 508.

Furthermore, a gap 509 is left between the left end of the cooling water diversion part 5 and the left side wall of the second cooling chamber 23, and the gap 509 is communicated with the upper through groove 25 and the lower through groove 26.

Furthermore, a sealing ring or gasket 6 is clamped between the right end surface of the cooling water turning part 4 and the right side wall of the first cooling cavity 12.

Furthermore, a first rectangular groove 201 is formed on the lower side wall of the upper guide hole 21, and a first through hole 202 communicated with the water outlet branch flow passage 51 is formed on the bottom surface of the first rectangular groove 201; the upper channel 27 is composed of a first rectangular groove 201 and a first through hole 202;

a second rectangular groove 203 is formed on the upper side wall of the lower guide hole 21, and a second through hole 204 communicated with the water inlet branch flow passage 52 is formed on the bottom surface of the second rectangular groove 203; the lower channel 28 is formed with a second rectangular recess 202 and a second through hole 204.

Furthermore, a water outlet pipe connecting hole 45 is formed at the left side opening of the water outlet main flow passage 43; a water inlet pipe connection hole 46 is formed at the left side opening of the water inlet main flow passage 44.

The working principle is as follows: the water inlet pipe connecting hole 46 is connected with an external cooling water inlet pipe, and the water outlet pipe connecting hole 45 is connected with an external cooling water return pipe;

after the plastic product is pressed, cooling water enters the water inlet main runner 44 from the cooling water inlet pipe, the cooling water of the water inlet main runner 44 is divided into two paths, one path enters the bottom of the U-shaped sink 42, and the other path flows into the lower channel 28 from the guide pipe 3 at the lower side;

the cooling water entering the U-shaped sink 42 is divided into a plurality of paths again and flows from the bottom of the first annular groove 13 to the upper part of the first annular groove 13, then converges to the upper end of the U-shaped sink 42 and finally enters the main water outlet channel 43;

the cooling water entering the lower channel 28 enters the lower through groove 26 through the water inlet branch flow passage 52, the cooling water in the lower through groove 26 is divided into a plurality of paths and is respectively conveyed from bottom to top along the plurality of second annular grooves 24, the cooling water is converged into the upper through groove 25 when flowing to the upper end of the second annular grooves 24, then enters the upper channel 27 through the water outlet branch flow passage 51, and the cooling water entering the upper channel 27 flows to the water outlet main flow passage 43 through the guide pipe on the upper side and finally enters the cooling water return pipe; the cooling water is shown as an arrow in FIG. 2;

through the inboard of cooling water flow through the core and the outside of die cavity to carry out rapid cooling to core and die cavity, thereby also indirect cooling time who accelerates plastic products, thereby improve plastic products's production efficiency.

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 an injection mold cooling system of convenient drawing of patterns, includes die (1) and terrace die (2) of controlling the setting, its characterized in that: two guide tubes (3) which are arranged up and down are fixed on the female die (1), and the guide tubes (3) are inserted in guide holes (21) of the male die (2);

the die (1) is provided with a die cavity (11) with an opening at the right side and a first cooling cavity (12) with an opening at the left side, a plurality of first annular grooves (13) are formed in the outer wall of the die cavity (11), a cooling water rotating part (4) is fixed in the first cooling cavity (12), a groove (41) matched with the outer wall of the die cavity (11) is formed in the cooling water rotating part (4), and a U-shaped sink groove (42) is formed in the groove (41);

a water outlet main flow passage (43) and a water inlet main flow passage (44) which are vertically arranged and communicated with the U-shaped sink groove (42) are formed in the cooling water transferring part (4);

the guide pipe (3) at the upper side is communicated with the main water outlet channel (43), and the guide pipe (3) at the lower side is communicated with the main water inlet channel (44);

a mold core (22) protruding towards the left and a second cooling cavity (23) with an opening at the right are formed in the male mold (2), a plurality of second annular grooves (24), upper through grooves (25) penetrating the upper ends of the second annular grooves (24) and lower through grooves (26) penetrating the lower ends of the second annular grooves (24) are formed in the inner wall of the left side of the second cooling cavity (23);

a cooling water branch and rotation part (5) is arranged in the second cooling cavity (23), and a water outlet branch flow passage (51) communicated with the upper through groove (25) and a water inlet branch flow passage (52) communicated with the lower through groove (26) are arranged in the cooling water branch and rotation part (5);

an upper channel (27) communicated with the water outlet branch flow channel (51) is formed on the lower side wall of the upper guide hole (21), and a lower channel (28) communicated with the water inlet branch flow channel (52) is formed on the upper side wall of the lower guide hole (21).

2. The injection mold cooling system that facilitates demolding of claim 1, wherein: a first vertical hole (501) and a second vertical hole (502) which are arranged in a left-right mode and penetrate through the cooling water supporting and rotating part (5) in the vertical direction, and a first transverse hole (503) and a second transverse hole (504) which are arranged in an up-down mode and penetrate through the first vertical hole (501) and the second vertical hole (502) are formed in the cooling water supporting and rotating part;

a first blocking column (505) is fixed in the middle of the first vertical hole (501), and a second blocking column (506) is fixed in the middle of the second vertical hole (502);

a third blocking column (507) is fixed at the outer opening part of the first transverse hole (503), and a fourth blocking column (508) is fixed at the outer opening part of the second transverse hole (504);

the water outlet branch flow channel (51) is formed by enclosing the upper end of a first vertical hole (501), the upper end of a second vertical hole (502), a first transverse hole (503), the upper end of a first blocking column (505), the upper end of a second blocking column (506) and a third blocking column (507);

the water inlet branch flow channel (52) is formed by enclosing the lower end of a first vertical hole (501), the lower end of a second vertical hole (502), a first transverse hole (503), the lower end of a first blocking column (505), the lower end of a second blocking column (506) and a fourth blocking column (508).

3. The injection mold cooling system that facilitates demolding of claim 1, wherein: and a gap (509) is reserved between the left end of the cooling water supporting part (5) and the left side wall of the second cooling cavity (23), and the gap (509) is communicated with the upper through groove (25) and the lower through groove (26).

4. The injection mold cooling system that facilitates demolding of claim 1, wherein: and a sealing ring or a sealing gasket (6) is clamped between the right end surface of the cooling water rotating part (4) and the right side wall of the first cooling cavity (12).

5. The injection mold cooling system that facilitates demolding of claim 1, wherein: a first rectangular groove (201) is formed in the lower side wall of the guide hole (21) on the upper side, and a first through hole (202) communicated with the water outlet branch flow channel (51) is formed in the bottom surface of the first rectangular groove (201); the upper channel (27) is composed of a first rectangular groove (201) and a first through hole (202);

a second rectangular groove (203) is formed in the upper side wall of the guide hole (21) on the lower side, and a second through hole (204) communicated with the water inlet branch flow channel (52) is formed in the bottom surface of the second rectangular groove (203); the lower channel (28) is composed of a second rectangular groove (202) and a second through hole (204).

6. The injection mold cooling system that facilitates demolding of claim 1, wherein: a water outlet pipe connecting hole (45) is formed at the left opening part of the water outlet main channel (43); a water inlet pipe connecting hole (46) is formed at the left side opening part of the water inlet main flow passage (44).