Mold core cooling structure

Abstract

The utility model discloses a mold core cooling structure and relates to the technical field of plastic molds. Comprising a mold core body, the mold core body comprises a hollow injection molding space, and a glue inlet is formed in one side of the injection molding space; and the cooling assembly comprises a hollow cooling piece, a water inlet and a water outlet, the water inlet and the water outlet are both formed in the cooling piece, the water inlet is formed in the position close to the injection molding space, and the cooling piece is arranged at the position, corresponding to the glue inlet, of the other side of the injection molding space. The glue inlet and the cooling assembly are arranged on the two sides of the injection molding space in the mold core body respectively, the cooling piece in the cooling assembly is arranged at the position, corresponding to the glue inlet, of the other side of the injection molding space, and therefore the glue inlet can be cooled in a more targeted mode, and the water inlet of the cooling piece is formed in the position close to the injection molding space; therefore, a good mold core cooling effect can be achieved, the problem that gas marks are generated at the corresponding glue inlet is solved, the product quality is ensured, and the injection molding production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic molds, in particular to a mold core cooling structure. Background Art

[0002] The mold core generally refers to the precision parts used for key operations in the center of the mold, and is the core part of the plastic mold. The temperature of the mold core has an important impact on the quality and molding cycle of the product. The change of the mold core temperature often affects many parameters of the product, such as shrinkage, dimensional stability, and surface quality. Therefore, the existing equipment often needs to be cooled after use before it can be used again, which affects the production efficiency of injection molding.

[0003] However, in most existing plastic molds, the mold core is generally located in the center of the mold. As a result, it often happens that after other parts of the mold have cooled to a certain temperature, the temperature of the mold core is still high, resulting in air marks at the injection port, affecting the quality of the product. Utility Model Content

[0004] In order to solve at least one of the above technical problems, the utility model provides a mold core cooling structure.

[0005] To achieve the above objectives, the embodiments of the present application adopt the following technical solutions:

[0006] The utility model provides a mold core cooling structure, comprising:

[0007] A mold core body, wherein the mold core body comprises a hollow injection space, and a glue inlet is arranged on one side of the injection space;

[0008] A cooling component, the cooling component includes a cooling element with a hollow interior, a water inlet and a water outlet, the water inlet and the water outlet are both arranged on the cooling element, the water inlet is arranged at a position close to the injection space, and the cooling element is arranged at a position on the other side of the injection space corresponding to the glue inlet.

[0009] In a possible implementation of the present application, the cooling element is made of metal material.

[0010] In a possible implementation of the present application, the cooling element is made of beryllium copper.

[0011] In a possible implementation of the present application, the mold core body includes a first mold core and a second mold core, and the first mold core is connected to the second mold core in an opening and closing manner.

[0012] In a possible implementation of the present application, the cooling assembly is disposed on the first mold core, and the first mold core further includes a water inlet pipe adapted to the water inlet and a water outlet pipe adapted to the water outlet.

[0013] In a possible implementation of the present application, the glue inlet is provided on the second mold core.

[0014] In a possible implementation of the present application, the water outlet is arranged at a position away from the injection molding space.

[0015] In a possible implementation of the present application, an annular pipe waterway is provided between the water inlet and the water outlet.

[0016] In a possible implementation of the present application, at least one surface of the cooling member is exposed from the mold core body.

[0017] Compared with the prior art, the utility model provides a mold core cooling structure, in which a glue inlet and a cooling assembly are respectively arranged on both sides of the injection space in the mold core body, wherein the cooling member in the cooling assembly is arranged at a position corresponding to the glue inlet on the other side of the injection space, so that the glue inlet can be cooled more specifically, and the water inlet of the cooling member is arranged at a position close to the injection space, so that a good cooling effect of the mold core can be achieved, the problem of air marks generated at the corresponding glue inlet can be improved, the quality of the product can be ensured, and the injection molding production efficiency can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the implementation modes of the present application, the drawings required for use in the implementation modes of the present application will be described below.

[0019] Figure 1 It is a cross-sectional structural schematic diagram of a mold core cooling structure provided by the utility model;

[0020] Figure 2 It is an exploded schematic diagram of a mold core cooling structure provided by the utility model;

[0021] Figure 3 It is a structural schematic diagram of a first mold core in a mold core cooling structure provided by the utility model;

[0022] Figure 4 The utility model provides a schematic structural diagram of a ring-shaped pipeline water channel in a mold core cooling structure.

[0023] Description of reference numerals:

[0024] 1. Mold body; 11. Injection space; 12. Glue inlet; 13. First mold; 131. Water inlet pipe; 132. Water outlet pipe; 14. Second mold; 2. Cooling assembly; 21. Cooling element; 22. Water inlet; 23. Water outlet; 24. Annular pipeline waterway. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0026] The terms "first", "second", etc. in the embodiments of the utility model are only used to distinguish related technical features and do not represent the order of precedence. It should be understood that the data used in this way can be interchanged where appropriate, so as to describe the embodiments of the present application described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0027] In the present application, the directions or positional relationships indicated by the terms "upper", "lower", "inner", "middle", "outer", "front", "back", etc. are based on the directions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction.

[0028] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0029] The utility model provides a mold core cooling structure, in which a glue inlet and a cooling assembly are respectively arranged on both sides of the injection space in the mold core body, wherein a cooling member in the cooling assembly is arranged at a position corresponding to the glue inlet on the other side of the injection space, so that the glue inlet can be cooled more specifically, and the water inlet of the cooling member is arranged at a position close to the injection space, so that a good cooling effect of the mold core can be achieved, the problem of air marks generated at the corresponding glue inlet can be improved, the quality of the product can be guaranteed, and the injection molding production efficiency can be improved. Example

[0030] The utility model provides a mold core cooling structure, such as Figures 1 to 4As shown, it includes: a mold body 1, the mold body 1 includes a hollow injection space 11, and a glue inlet 12 is arranged on one side of the injection space 11; a cooling component 2, the cooling component 2 includes an internal hollow cooling part 21, a water inlet 22 and a water outlet 23, the water inlet 22 and the water outlet 23 are both arranged on the cooling part 21, the water inlet 22 is arranged at a position close to the injection space 11, and the cooling part 21 is arranged at a position corresponding to the glue inlet 12 on the other side of the injection space 11.

[0031] The hollow injection molding space 11 is used to accommodate the molten plastic and cool and solidify it. A glue inlet 12 is provided on one side of the injection molding space 11 to guide the molten plastic into the injection molding space 11. The cooling member 21 is provided at a position corresponding to the glue inlet 12 on the other side of the injection molding space 11, so that the mold core area near the glue inlet 12 can be effectively cooled. The water inlet 22 and the water outlet 23 are both provided on the cooling member 21. The water inlet 22 is located near the injection molding space 11 to facilitate the coolant to quickly enter the cooling member 21 for heat exchange; the water outlet 23 is located at the other end of the cooling member 21 to discharge the coolant that has absorbed heat.

[0032] The exemplary embodiment of the utility model provides a possible working principle of a mold core cooling structure: during the injection molding process, the molten plastic enters the injection molding space 11 through the glue inlet 12. At the same time, the coolant enters the cooling member 21 through the water inlet 22, flows inside the cooling member 21, absorbs the heat of the mold core, and then is discharged through the water outlet 23. Since the cooling member 21 is located at a position corresponding to the glue inlet 12, the mold core near the glue inlet 12 can be cooled more specifically.

[0033] In this way, by arranging the cooling member 21 at a position corresponding to the glue inlet 12, the mold core near the glue inlet 12 can be cooled more directly and effectively, reducing the problem of gas lines at the glue inlet 12 caused by the mold core being too high in temperature, thereby ensuring the quality of the product. Since the mold core can be cooled more quickly and evenly, the injection molding cycle is shortened and the production efficiency is improved.

[0034] The cooling member 21 can be made of metal materials, including metals with good heat dissipation performance such as copper, aluminum, silver, titanium, nickel, and tungsten-copper alloy. More specifically, the cooling member 21 is made of beryllium copper. Beryllium copper, also known as beryllium bronze, is a Wuxi bronze with beryllium as the main alloying component. Beryllium copper is an alloy material, usually composed of copper and 0.6% to 2.5% beryllium. Beryllium copper not only has excellent thermal conductivity, but also has high hardness, elastic limit, fatigue limit and wear resistance, as well as good corrosion resistance, and does not generate sparks when impacted.

[0035] In the mold core cooling structure of the plastic mold, using beryllium copper as the cooling member 21 material can ensure that the mold core is cooled evenly and quickly, effectively reducing the problem of gas lines at the glue inlet 12 caused by the mold core temperature being too high. At the same time, the high temperature stability, wear resistance, corrosion resistance, and no sparks when impacted of beryllium copper can also ensure that the cooling member 21 maintains stable performance during long-term use.

[0036] like Figure 2 As shown, more specifically, the mold core body 1 includes a first mold core 13 and a second mold core 14 , and the first mold core 13 and the second mold core 14 are connected in an opening and closing manner.

[0037] like Figure 1 and Figure 2 As shown, more specifically, the cooling assembly 2 is disposed on the first mold core 13 , and the first mold core 13 further includes a water inlet pipe 131 adapted to the water inlet 22 and a water outlet pipe 132 adapted to the water outlet 23 .

[0038] like Figure 1 and Figure 2 As shown, more specifically, the glue inlet 12 is provided on the second mold core 14 .

[0039] In this way, the mold core body 1 is composed of a first mold core 13 and a second mold core 14, which are connected by an opening and closing mechanism so that they can be separated after the injection molding is completed and the molded product can be taken out. The glue inlet 12 is arranged on the second mold core 14, which is used to introduce the molten plastic into the mold cavity during the injection molding process. The cooling component 2 is arranged on the first mold core 13, corresponding to the glue inlet 12, to ensure efficient cooling of the mold core near the glue inlet 12. The water inlet pipe 131 is adapted to the water inlet 22 to ensure that the coolant can smoothly enter the cooling element 21; the water outlet pipe 132 is adapted to the water outlet 23 to ensure that the coolant can be discharged smoothly.

[0040] like Figure 2 As shown, the water outlet 23 is arranged at a position far away from the injection space 11 .

[0041] like Figure 4 As shown, more specifically, a ring-shaped pipe waterway 24 is provided between the water inlet 22 and the water outlet 23. In the mold core cooling structure, the ring-shaped pipe waterway 24 is designed between the water inlet 22 and the water outlet 23, which can further improve the cooling efficiency and uniformity. In addition, the water outlet 23 is arranged at a position far away from the injection molding space 11, so that after the temperature of the coolant entering the cooling part 21 rises, it can flow faster to the water outlet 23 arranged far away from the injection molding space 11, so that the flow rate of the coolant can be further increased, thereby improving the cooling effect.

[0042] like Figure 1As shown, at least one surface of the cooling member 21 is exposed to the mold body 1. Further refining the structure of the cooling member 21 so that at least one surface of the cooling member 21 is exposed to the mold body 1 can improve the cooling effect. In this way, at least one surface of the cooling member 21, such as the bottom surface or the side surface, is exposed to the mold body 1, and can more directly exchange heat with the external environment, accelerate the dissipation of heat, and thus improve the cooling efficiency. More specifically, the cooling member 21 can be made of beryllium copper material, because of its strong thermal conductivity, it can quickly conduct heat to the coolant and the exposed surface, further improving the cooling effect. The design of the exposed surface of the cooling member 21 can accelerate the dissipation of heat, improve cooling efficiency, reduce the problem of air marks at the glue inlet 12, and improve product quality.

[0043] In summary, beryllium copper, as an alloy material, is known for its excellent thermal conductivity. Using beryllium copper to make a circular water transport system in the mold core can ensure that the coolant can quickly and evenly absorb the heat of the mold core when flowing in the circular pipe, thereby reducing the temperature of the mold core. Since the contact area of ​​the circular water transport system is large, it can better cover the surface of the mold core, achieve uniform cooling, reduce the temperature of the mold core, and effectively avoid the formation of air marks at the injection port.

[0044] In addition, the high strength, high hardness and good wear resistance of beryllium copper also make it an ideal material for manufacturing mold cooling systems. These characteristics can ensure that the cooling system maintains stable performance during long-term use and extend the service life of the mold.

[0045] Compared with the prior art, the embodiment of the utility model provides a mold core cooling structure, in which a glue inlet and a cooling assembly are respectively arranged on both sides of the injection space in the mold core body, wherein the cooling part in the cooling assembly is arranged at a position corresponding to the glue inlet on the other side of the injection space, so that the glue inlet can be cooled more specifically, and the water inlet of the cooling part is arranged at a position close to the injection space, so as to achieve a good cooling effect of the mold core, improve the problem of air marks generated at the corresponding glue inlet, ensure the quality of the product, and improve the injection molding production efficiency.

[0046] The above are only preferred specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A mold core cooling structure, characterized in that: include: A mold core body (1), the mold core body (1) comprising a hollow injection molding space (11), and a glue inlet (12) is provided on one side of the injection molding space (11); A cooling component (2), the cooling component (2) comprising a cooling member (21) with a hollow interior, a water inlet (22) and a water outlet (23), the water inlet (22) and the water outlet (23) being both arranged on the cooling member (21), the water inlet (22) being arranged at a position close to the injection molding space (11), and the cooling member (21) being arranged at a position on the other side of the injection molding space (11) corresponding to the injection port (12).

2. The mold core cooling structure according to claim 1, characterized in that: The cooling element (21) is made of metal material.

3. The mold core cooling structure according to claim 2, characterized in that: The cooling element (21) is made of beryllium copper.

4. The mold core cooling structure according to any one of claims 1 to 3, characterized in that: The mold core body (1) comprises a first mold core (13) and a second mold core (14), and the first mold core (13) and the second mold core (14) are connected in an opening and closing manner.

5. The mold core cooling structure according to claim 4, characterized in that: The cooling assembly (2) is arranged on the first mold core (13), and the first mold core (13) also includes a water inlet pipe (131) adapted to the water inlet (22) and a water outlet pipe (132) adapted to the water outlet (23).

6. The mold core cooling structure according to claim 4, characterized in that: The glue inlet (12) is arranged on the second mold core (14).

7. The mold core cooling structure according to claim 1, characterized in that: The water outlet (23) is arranged at a position far away from the injection molding space (11).

8. The mold core cooling structure according to claim 1 or 7, characterized in that: An annular pipeline waterway (24) is provided between the water inlet (22) and the water outlet (23).

9. The mold core cooling structure according to claim 1, characterized in that: At least one surface of the cooling element (21) is exposed outside the mold core body (1).

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