CN215472896U

CN215472896U - Cooling circulation structure in injection mold

Info

Publication number: CN215472896U
Application number: CN202121059199.7U
Authority: CN
Inventors: 严胜义; 李勇; 胡光良; 陈杰; 梁征; 陈清举; 余焕新
Original assignee: Wenzhou Changjiang Automobile Electronic System Co Ltd
Current assignee: Zhejiang Changjiang Automobile Electronics Co ltd
Priority date: 2021-05-17
Filing date: 2021-05-17
Publication date: 2022-01-11
Anticipated expiration: 2031-05-17

Abstract

The utility model relates to a cooling circulation structure in an injection mold, which comprises a mold core and is characterized by also comprising a forming table formed by 3D printing, wherein a cooling cavity formed by the 3D printing is arranged on the forming table, the cooling cavity comprises a plurality of cooling water channels formed by sequentially arranged broken line segments or arc segments, two adjacent cooling water channels are communicated with each other, a water inlet and a water outlet are arranged on the cooling cavity, the mold core and the forming table are welded into a whole, a water inlet channel and a water outlet channel are arranged on the mold core, the water inlet is communicated with the cooling water channels and the water inlet channel, and the water outlet is communicated with the cooling water channels and the water outlet channel. By adopting the technical scheme, the utility model provides a cooling circulation structure in an injection mold, wherein a 3D printing forming table is additionally arranged in the mold, a cooling cavity is printed on the forming table by utilizing the 3D printing, and a mold core and the forming table are aligned and laser welded together so as to form the cooling circulation structure.

Description

Cooling circulation structure in injection mold

Technical Field

The utility model relates to the technical field of injection molds, in particular to a cooling circulation structure in an injection mold.

Background

In the injection molding process, the temperature of a mold core in the mold directly influences the performance and the appearance quality of a molded product, so that the temperature control of the mold is very important during injection molding, and a plastic part produced by the injection molding mold is very easy to generate welding marks, stress marks, low product appearance surface gloss, uneven product surface and other problems.

For solving the above-mentioned problem, current injection mold can be equipped with cooling system on the mold core, generally adopt the drilling machine directly to process and form, be provided with the cooling water course that is "U" shape setting in the mold core, be equipped with on the mold core with communicating water inlet and the delivery port of cooling water course, water flows in from the water inlet, through the cooling water course, it forms hydrologic cycle to flow out from the delivery port at last, but its cooling area of this kind of cooling water course is little, thereby it is not good to lead to the cooling effect, and need the cooling water course that the cooling effect is good, then only utilize the drilling machine to process comparatively trouble, it is inconvenient to process.

Disclosure of Invention

The purpose of the utility model is as follows: in order to overcome the defects of the prior art, the utility model provides a cooling circulation structure in an injection mold, wherein a 3D printing forming table is additionally arranged in the mold, a cooling cavity is printed on the forming table by utilizing the 3D printing, and a mold core and the forming table are aligned and welded together by laser so as to form the cooling circulation structure, so that the processing is convenient.

The technical scheme of the utility model is as follows: the utility model provides a cooling cycle structure among injection mold, includes the mold core, its characterized in that, still prints the forming table that forms including 3D, be equipped with the cooling die cavity that forms by 3D printing on the forming table, the cooling die cavity includes the cooling water course that the broken line section that a plurality of sections set gradually or segmental arc formed, and two adjacent cooling water courses switch on each other, be equipped with water inlet and delivery port on the cooling die cavity, mold core and forming table through welding formation integratively, be equipped with inlet channel and outlet channel on the mold core, the water inlet switch on cooling water course and inlet channel, the delivery port switches on cooling water course and outlet channel.

Adopt above-mentioned technical scheme, utilize 3D to print out the forming station and cool off the die cavity, processing is convenient like this, the forming station utilizes ultrasonic bonding to form integratively with the mold core, inhalant canal and exhalant canal intercommunication on cooling water course and the mold core form complete cooling structure, and the cooling structure who produces like this, cooling efficiency is high, the cooling cycle is short, thereby make the cooling effect good, can also make the temperature distribution of mould more even, can guarantee fashioned part quality like this, effectively solve exist among the prior art because of the temperature causes part surface stress trace, weld line and gloss subalternation problem.

The utility model further comprises the following steps: the cooling water channel comprises a first cooling water channel arranged in parallel with the water inlet channel and a second cooling water channel arranged perpendicular to the water inlet channel, and the second cooling water channel is arranged between the two first cooling water channels.

Adopt above-mentioned further setting, increase cooling area for the cooling effect is better.

The utility model further provides that: all the cooling water channels are arranged in a U shape.

Adopt above-mentioned further setting again, further improvement radiating effect improves production efficiency.

Still further arrangements of the utility model are: the upper end surface of one side of the forming table, which is far away from the mold core, is obliquely arranged.

By adopting the above further arrangement, the forming table is convenient to be connected with other parts in the injection mold.

Drawings

FIG. 1 is a schematic view of an injection mold according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of an embodiment of the present invention;

FIG. 3 is a top view of an embodiment of the present invention;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 3;

FIG. 6 is a schematic view of a cooling waterway in an embodiment of the present invention.

Detailed Description

As shown in fig. 1-6, a cooling circulation structure in an injection mold, which is used for a cooling circulation structure of 100 in the injection mold, and includes a mold core 1 and a forming table 2 formed by 3D printing, wherein the forming table 2 is provided with a cooling cavity 3 formed by 3D printing, the cooling cavity 3 includes a plurality of cooling water channels 31 formed by fold lines or arc sections sequentially arranged, two adjacent cooling water channels 31 are mutually communicated, the cooling cavity 3 is provided with a water inlet and a water outlet, the mold core 1 and the forming table 2 are welded into a whole, ultrasonic welding is used, as shown by 200 in fig. 2, a welding point is provided, the mold core 1 is provided with a water inlet channel 11 and a water outlet channel 12, the water inlet is communicated with the cooling water channel 31 and the water outlet channel 11, the water outlet is communicated with the cooling water channel 31 and the water outlet channel 12, the forming table 2 and the cooling cavity 3 are printed by 3D, processing is convenient like this, forming table 2 utilizes ultrasonic bonding to form integratively with mold core 1, cooling water course 31 and the inhalant canal 11 and the exhalant canal 12 on the mold core 1 intercommunication form complete cooling structure, and the cooling structure who makes like this, the cooling efficiency is high, the cooling cycle is short, make the cooling effect good, thereby can shorten injection moulding's cycle, reach the purpose that reduces the injection moulding cost, and further the temperature distribution that can also make the mould of setting up of cooling water course in this mould is more even, can guarantee fashioned part quality like this, effectively solve the part surface stress trace because of the temperature causes among the prior art, weld line and gloss subalternation problem.

In this embodiment, the cooling water channel 31 includes a first cooling water channel 311 disposed parallel to the water inlet channel 11 and a second cooling water channel 312 disposed perpendicular to the water inlet channel 11, and the second cooling water channel 312 is disposed between the two first cooling water channels 311, so as to increase the cooling area and improve the cooling effect. Specifically, each cooling water channel 31 all becomes "U" font setting for the temperature is more even, further improvement radiating effect, improvement production efficiency.

In this embodiment, the forming table 2 is away from the inclined arrangement of the upper end surface of one side of the mold core 1, which facilitates the connection of the forming table 2 and other parts in the injection mold.

Claims

1. The utility model provides a cooling cycle structure among injection mold, includes the mold core, its characterized in that, still prints the forming table that forms including 3D, be equipped with the cooling die cavity that forms by 3D printing on the forming table, the cooling die cavity includes the cooling water course that the broken line section that a plurality of sections set gradually or segmental arc formed, and two adjacent cooling water courses switch on each other, be equipped with water inlet and delivery port on the cooling die cavity, mold core and forming table through welding formation integratively, be equipped with inlet channel and outlet channel on the mold core, the water inlet switch on cooling water course and inlet channel, the delivery port switches on cooling water course and outlet channel.

2. The cooling cycle structure in an injection mold as claimed in claim 1, wherein the cooling water passage includes a first cooling water passage arranged in parallel with the water inlet passage and a second cooling water passage arranged perpendicular to the water inlet passage, the second cooling water passage being disposed between the first cooling water passages.

3. The cooling cycle structure in an injection mold according to claim 1 or 2, wherein each of the cooling water passages is provided in a "U" shape.

4. A cooling cycle structure in an injection mold according to claim 1 or 2, wherein the forming table is disposed obliquely away from an upper end surface of a side of the mold core.