Injection mold

Abstract

The utility model discloses an injection mold and relates to the technical field of injection molds. The injection mold comprises a first mold, a second mold, a water conveying main system, a first water conveying sub-system and a second water conveying sub-system, the injection mold is additionally provided with the first water conveying sub-system and the second water conveying sub-system besides the water conveying main system, and the water conveying main system, the first water conveying sub-system and the second water conveying sub-system are mutually independent. Wherein a first water path of the first water conveying sub-system is arranged at a glue inlet position of the first mold, a second water path of the second water conveying sub-system is arranged at a glue inlet position of the second mold, and the working temperatures of the glue inlet positions on the first mold and the second mold are respectively and independently regulated and controlled through the two water conveying sub-systems; therefore, the temperatures of different parts of the mold are accurately and independently controlled, the temperature difference between the glue feeding position and the non-glue feeding position on the first mold and the second mold is effectively reduced, the problem of solar imprint marks caused by the temperature difference is solved, and the appearance quality and the overall yield of injection molding products are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding, in particular to an injection mold. Background Art

[0002] Injection molding, a key technology in plastics processing, is widely used to produce plastic products of various shapes and sizes. The basic process involves injecting molten plastic material into a mold cavity under high pressure using an injection molding machine. The material then cools and solidifies, ultimately yielding the desired shape. This process, due to its efficiency, flexibility, and cost-effectiveness, has found widespread application in a variety of fields, including automotive parts, electronics, and consumer goods.

[0003] In injection mold design, a point-in-place injection molding technique is often used to reduce sprue (excess plastic on the molded part) during the injection process, thereby improving material utilization and product aesthetics. This technique precisely controls the injection point of the plastic material, allowing the plastic to more evenly fill the mold cavity, effectively reducing the occurrence of sprue.

[0004] However, in actual production, the injection mold's gluing area, directly exposed to hot, molten plastic, often experiences high operating temperatures. Current injection molds typically have only one cooling system, failing to independently control the operating temperature of each mold component, particularly the gluing area. This high temperature during the injection molding process can easily create noticeable sunburst marks on the product's exterior, severely impacting both product quality and yield. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides an injection mold.

[0006] The utility model discloses an injection mold, comprising a first mold, a second mold, a main water transport system, a first water transport subsystem, and a second water transport subsystem. The main water transport system, the first water transport subsystem, and the second water transport subsystem are independent of each other. The main water transport system is used to adjust the working temperature of non-glue feeding positions on the first mold and the second mold, the first water transport subsystem is used to adjust the working temperature of the glue feeding position on the first mold, and the second water transport subsystem is used to adjust the working temperature of the glue feeding position on the second mold.

[0007] Among them, the main water transport system includes a first main water channel and a second main water channel. The first main water channel is arranged at the non-glue feeding position of the first mold, and the second main water channel is arranged at the non-glue feeding position of the second mold; the first water transport subsystem includes a first branch water channel, and the first branch water channel is arranged at the glue feeding position of the first mold; the second water transport subsystem includes a second branch water channel, and the second branch water channel is arranged at the glue feeding position of the second mold.

[0008] According to one embodiment of the present invention, the first water channel has a first main flow section, and the first main flow section is arranged around the glue inlet of the first mold.

[0009] According to one embodiment of the present invention, the shape of the first main flow section is adapted to the shape of the glue inlet.

[0010] According to one embodiment of the present invention, the first main flow segment is annular.

[0011] According to one embodiment of the present invention, the second water channel has a second main flow section, and the second main flow section is centrally arranged at the glue inlet on the second mold corresponding to the first mold.

[0012] According to one embodiment of the present invention, the shape of the second main flow section is adapted to the shape of the glue inlet.

[0013] According to one embodiment of the present invention, the second main flow section is cylindrical.

[0014] According to one embodiment of the present invention, the water inlet of the first main water channel and the water inlet of the second main water channel are connected to the water outlet of the main mold temperature controller, and the water outlet of the first main water channel and the water outlet of the second main water channel are connected to the water inlet of the main mold temperature controller.

[0015] According to one embodiment of the present invention, the water inlet of the first water branch is communicated with the water outlet of the first mold separation temperature controller, and the water outlet of the first water branch is communicated with the water inlet of the first mold separation temperature controller.

[0016] According to one embodiment of the present invention, the water inlet of the second water branch is communicated with the water outlet of the second mold separation temperature controller, and the water outlet of the second water branch is communicated with the water inlet of the second mold separation temperature controller.

[0017] Compared with the prior art, the injection mold of the utility model has the following advantages:

[0018] The injection mold of the present invention is provided with a first water transport subsystem and a second water transport subsystem in addition to the main water transport system. The main water transport system, the first water transport subsystem and the second water transport subsystem are independent of each other, wherein the first water channel of the first water transport subsystem is arranged at the glue feeding position of the first mold, and the second water channel of the second water transport subsystem is arranged at the glue feeding position of the second mold. The two water transport subsystems are used to independently regulate the working temperatures of the glue feeding positions on the first mold and the second mold, thereby realizing accurate and independent control of the temperatures of different parts of the mold, effectively reducing the temperature difference between the glue feeding position and the non-glue feeding position on the first mold and the second mold, solving the problem of sun print marks caused by temperature difference, and thereby improving the appearance quality and overall yield of the injection molded products. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0020] Figure 1 Schematic diagram of the structure of the first water transport subsystem and the second water transport subsystem in the embodiment.

[0021] Description of reference numerals:

[0022] 100, first water transport subsystem; 110, first water diversion channel; 111, first main flow section;

[0023] 200. Second water transport system; 210. Second water diversion channel; 211. Second main flow section. DETAILED DESCRIPTION

[0024] The following diagrams illustrate various embodiments of the present invention. For clarity, many practical details will be included in the following description. However, it should be understood that these practical details are not intended to limit the present invention. In other words, in some embodiments of the present invention, these practical details are not essential. Furthermore, to simplify the illustrations, some commonly used structures and components are depicted in a simplified schematic manner.

[0025] In addition, in the present invention, descriptions such as "first" and "second" are only used for descriptive purposes and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0026] See also Figure 1 This embodiment provides an injection mold, including a first mold, a second mold, a main water transport system, a first water transport system 100, and a second water transport system 200. The main water transport system, the first water transport system 100, and the second water transport system 200 are independent of each other. The main water transport system adjusts the working temperature of the non-glue feeding position on the first mold and the second mold, the first water transport system 100 adjusts the working temperature of the glue feeding position on the first mold, and the second water transport system 200 adjusts the working temperature of the glue feeding position on the second mold.

[0027] Specifically, the first mold and the second mold are arranged opposite to each other, and the glue inlet is arranged on the first mold. The first mold near the glue inlet and the glue inlet corresponding to the second mold together constitute the above-mentioned glue inlet position, and the rest of the first mold and the second mold constitute the non-glue inlet position. The main water transport system includes a first main water channel and a second main water channel. The first main water channel is arranged on the first mold along the non-glue inlet position, and the second main water channel is arranged on the second mold along the non-glue inlet position. The water inlet of the first main water channel and the water inlet of the second main water channel are connected to the water outlet of the main mold temperature controller, and the water outlet of the first main water channel and the water outlet of the second main water channel are connected to the water inlet of the main mold temperature controller. The main mold temperature controller adjusts the temperature and flow rate of the medium in the first main water channel and the second main water channel, thereby adjusting the working temperature of the non-glue inlet position on the first mold and the second mold.

[0028] Review Figure 1 The first water transport system 100 includes a first water channel 110, which is arranged on the first mold along the glue inlet. The water inlet of the first water channel 110 is connected to the water outlet of the first mold separation temperature controller, and the water outlet of the first water channel 110 is connected to the water inlet of the first mold separation temperature controller. The first mold separation temperature controller adjusts the temperature and flow rate of the medium in the first water channel 110, thereby adjusting the operating temperature at the glue inlet of the first mold.

[0029] Furthermore, the first water channel 110 includes a first main flow section 111, which is arranged around the glue inlet on the first mold to independently adjust the operating temperature at the glue inlet. This effectively reduces the temperature difference between the glue inlet and other parts of the first mold. The shape of the first main flow section 111 matches that of the glue inlet and is annular.

[0030] Similarly, the second water transport system 200 includes a second water channel 210, which is arranged on the second mold along the glue inlet. The water inlet of the second water channel 210 is connected to the water outlet of the second mold separation temperature controller, and the water outlet of the second water channel 210 is connected to the water inlet of the second mold separation temperature controller. The second mold separation temperature controller adjusts the temperature and flow rate of the medium in the second water channel 210, thereby adjusting the operating temperature at the corresponding glue inlet of the second mold.

[0031] Furthermore, the second water channel 210 includes a second main flow section 211. This section 211 is centrally located at the glue inlet of the second mold to independently adjust the operating temperature there, thereby effectively reducing the temperature difference between the glue inlet and other parts of the second mold. The shape of the second main flow section 211 matches that of the glue inlet and is cylindrical.

[0032] To sum up, in addition to the main water transport system, the injection mold is also additionally provided with a first water transport subsystem and a second water transport subsystem. The main water transport system, the first water transport subsystem and the second water transport subsystem are independent of each other. The first water channel of the first water transport subsystem is arranged at the glue feeding position of the first mold, and the second water channel of the second water transport subsystem is arranged at the glue feeding position of the second mold. The two water transport subsystems are used to independently regulate the working temperatures of the glue feeding positions on the first mold and the second mold, thereby achieving precise and independent control of the temperatures of different parts of the mold, effectively reducing the temperature difference between the glue feeding position and the non-glue feeding position on the first mold and the second mold, solving the problem of sun print marks caused by temperature differences, and thereby improving the appearance quality and overall yield of the injection molded products.

[0033] The above description is merely an embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be included within the scope of the claims of the present invention.

Claims

1. An injection mold, characterized in that: The invention comprises a first mold, a second mold, a main water transport system, a first water transport subsystem (100) and a second water transport subsystem (200), wherein the main water transport system, the first water transport subsystem (100) and the second water transport subsystem (200) are independent of each other, the main water transport system is used to adjust the working temperature of the non-glue feeding position on the first mold and the second mold, the first water transport subsystem (100) is used to adjust the working temperature of the glue feeding position on the first mold, and the second water transport subsystem (200) is used to adjust the working temperature of the glue feeding position on the second mold; The main water transport system comprises a first main water channel and a second main water channel, the first main water channel is arranged at the non-glue feeding position of the first mold, and the second main water channel is arranged at the non-glue feeding position of the second mold; the first water transport subsystem (100) comprises a first branch water channel (110), and the first branch water channel (110) is arranged at the glue feeding position of the first mold; the second water transport subsystem (200) comprises a second branch water channel (210), and the second branch water channel (210) is arranged at the glue feeding position of the second mold.

2. The injection mold according to claim 1, characterized in that The first water channel (110) has a first main flow section (111), and the first main flow section (111) is arranged around the glue inlet of the first mold.

3. The injection mold according to claim 2, characterized in that The shape of the first main flow section (111) is adapted to the shape of the glue inlet.

4. The injection mold according to claim 3, characterized in that The first main flow section (111) is annular.

5. The injection mold according to claim 1, wherein: The second water channel (210) has a second main flow section (211), and the second main flow section (211) is centrally arranged at a glue inlet on the second die corresponding to the first die.

6. The injection mold according to claim 5, characterized in that The shape of the second main flow section (211) is adapted to the shape of the glue inlet.

7. The injection mold according to claim 6, characterized in that The second main flow section (211) is cylindrical.

8. The injection mold according to any one of claims 1 to 7, characterized in that: The water inlet of the first main water channel and the water inlet of the second main water channel are connected to the water outlet of the main mold temperature controller, and the water outlet of the first main water channel and the water outlet of the second main water channel are connected to the water inlet of the main mold temperature controller.

9. The injection mold according to any one of claims 1 to 7, characterized in that: The water inlet of the first water branch channel (110) is in communication with the water outlet of the first mold separation temperature controller, and the water outlet of the first water branch channel (110) is in communication with the water inlet of the first mold separation temperature controller.

10. The injection mold according to any one of claims 1 to 7, characterized in that: The water inlet of the second water branch channel (210) is communicated with the water outlet of the second mold separation temperature controller, and the water outlet of the second water branch channel (210) is communicated with the water inlet of the second mold separation temperature controller.

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