Die structure convenient for heat dissipation

Abstract

The utility model discloses a mold structure convenient for heat dissipation. The mold structure comprises a lower base and an upper base, an upper mounting block and an upper mold core are arranged at the bottom of the upper base, and a lower mounting block and a lower mold core are arranged at the top of the lower base; the upper mold core and the lower mold core are oppositely arranged, and an upper heat dissipation structure for dissipating heat of the upper mold core is arranged on the upper mold core; an upper heat dissipation channel is arranged in the upper mold core, and the upper heat dissipation structure is located in the upper heat dissipation channel. A lower heat dissipation structure for dissipating heat of the lower mold core is arranged on the lower mold core, a lower heat dissipation channel is arranged in the lower mold core, and the lower heat dissipation structure is located in the lower heat dissipation channel; according to the utility model, the upper heat dissipation structure and the lower heat dissipation structure are used for simultaneous heat dissipation operation in the mold, so that the heat dissipation speed is accelerated, and the heat dissipation operation of a product can be rapidly carried out.

Description

Technical Field

[0001] The utility model relates to the field of molds, in particular to a mold structure which is convenient for heat dissipation. Background Art

[0002] Mould is a mechanical processing equipment with the title of "the mother of industry". It is mainly used to obtain various moulds and tools of the required products by injection moulding, blow moulding, extrusion, die casting or forging, smelting, stamping and other methods.

[0003] At present, in the mold production process, due to the high temperature of the molded workpiece and the mold itself, the mold is usually removed after the molded workpiece and the mold are naturally cooled. However, the natural cooling method can only adapt to small-scale production. For mass production, the heat dissipation speed of the mold needs to be improved. Therefore, under the technical research of relevant scientific and technological personnel, two major technical types of air cooling and liquid cooling have gradually developed. Among them, liquid cooling has the characteristics of fast cooling and good directionality. Compared with air cooling, it has a wider range of applications.

[0004] However, when the existing mold is cooled, the effect of cooling through liquid cooling is not good. Since the existing liquid cooling channels are generally arranged horizontally or vertically, the cooling area of ​​the liquid cooling is small and the cooling time is also short, resulting in dead corners on the upper mold core or the lower mold core or some places that do not get effective heat dissipation.

[0005] Therefore, it is necessary to provide a mold structure that is easy to dissipate heat for use. Utility Model Content

[0006] The purpose of the utility model is to provide a mold structure that is convenient for heat dissipation, so as to solve the problems raised in the above background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A mold structure for heat dissipation, comprising a lower base and an upper base; an upper mounting block and an upper mold core are provided at the bottom of the upper base, and a lower mounting block and a lower mold core are provided at the top of the lower base; the upper mold core is arranged opposite to the lower mold core, and an upper heat dissipation structure for dissipating heat from the upper mold core is provided on the upper mold core; an upper heat dissipation channel is provided in the upper mold core, and the upper heat dissipation structure is located in the upper heat dissipation channel; a lower heat dissipation structure for dissipating heat from the lower mold core is provided on the lower mold core, and a lower heat dissipation channel is provided in the lower mold core, and the lower heat dissipation structure is located in the lower heat dissipation channel;

[0009] A further technical solution is that the upper heat dissipation structure includes an intermediate heat dissipation channel arranged on the upper mold core, and a plurality of first heat dissipation fins and second heat dissipation fins are arranged in the intermediate heat dissipation channel. The plurality of first heat dissipation fins are arranged at equal intervals on a side wall of one side of the intermediate heat dissipation channel, and the plurality of second heat dissipation fins are arranged at equal intervals on the other side wall of the intermediate heat dissipation channel, and the first heat dissipation fins and the second heat dissipation fins are staggered with each other.

[0010] According to a further technical solution, the upper heat dissipation channel is composed of three layers of interconnected liquid cooling heat dissipation channels, namely upper, middle and lower layers, on the four side walls of the upper mold core.

[0011] According to a further technical solution, the liquid-cooled heat dissipation channel and the intermediate heat dissipation channel are interconnected, and an upper liquid inlet and an upper liquid outlet connected to the intermediate heat dissipation channel are provided on the upper mold core.

[0012] According to a further technical solution, the lower heat dissipation structure includes an intermediate heat dissipation pipe arranged in the middle of the lower mold core, three intermediate heat dissipation pipes are provided, and the intermediate heat dissipation pipes are of a curved structure.

[0013] According to a further technical solution, the upper heat dissipation structure also includes a curved heat dissipation pipe arranged in the side walls around the lower mold core.

[0014] According to a further technical solution, the curved heat dissipation tube and the middle heat dissipation tube are interconnected, and a lower liquid inlet and a lower liquid outlet connected to the curved heat dissipation tube are provided on the lower mold core.

[0015] Beneficial effects of the utility model:

[0016] The utility model can realize comprehensive heat dissipation of the upper mold core through the liquid cooling flow channel formed by the three-layer liquid cooling heat dissipation channel and the plurality of first heat dissipation fins and the plurality of second heat dissipation fins in the middle heat dissipation channel, so that the heat dissipation effect of the upper mold core is better and the heat dissipation effect of the product is accelerated.

[0017] The utility model can realize the comprehensive heat dissipation operation of the lower mold core through the middle heat dissipation pipe and the surrounding heat dissipation pipes, so that the heat dissipation effect of the lower mold core is better and the heat dissipation effect of the product is accelerated.

[0018] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 : A three-dimensional structural schematic diagram of the utility model.

[0020] Figure 2 : A schematic diagram of the three-dimensional structure of the upper mold core of the utility model.

[0021] Figure 3 : Structural diagram of upper base of the present utility model.

[0022] Figure 4 : The upper base section of the utility model Figure 1 .

[0023] Figure 5 : The upper base section of the utility model Figure 2 .

[0024] Figure 6 : A schematic diagram of the three-dimensional structure of the lower mold core of the utility model.

[0025] Figure 7 : A cross-sectional view of the lower die core of the utility model.

[0026] Figure 8 : A sectional view of the three-dimensional structure of the lower mold core of the present utility model.

[0027] Figure markings: 1-lower base, 11-lower mounting block, 12-lower mold core, 2-upper base, 21-upper mounting block, 22-upper mold core, 3-upper heat dissipation structure, 31-middle heat dissipation channel, 32-first heat sink, 33-second heat sink, 34-liquid cooling channel, 4-lower heat dissipation structure, 41-middle heat dissipation pipe, 42-curved heat dissipation pipe. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0029] Please refer to Figure 1-8 As shown; the utility model provides a technical solution: a mold structure that is convenient for heat dissipation, comprising a lower base 1 and an upper base 2; the bottom of the upper base 2 is provided with an upper mounting block 21 and an upper mold core 22, and the top of the lower base 1 is provided with a lower mounting block 11 and a lower mold core 12; the upper mold core 22 is arranged opposite to the lower mold core 12, and the upper mold core 22 is provided with an upper heat dissipation structure 3 for dissipating heat from the upper mold core 22; an upper heat dissipation channel is provided in the upper mold core 22, and the upper heat dissipation structure 3 is located in the upper heat dissipation channel; the lower mold core 12 is provided with a lower heat dissipation structure 4 for dissipating heat from the lower mold core 12, and the lower mold core 12 is provided with a lower heat dissipation channel, and the lower heat dissipation structure 4 is located in the lower heat dissipation channel;

[0030] The upper heat dissipation structure 3 and the lower heat dissipation structure 4 perform heat dissipation operations simultaneously in the mold, thereby accelerating the heat dissipation speed so that the product can also be quickly cooled.

[0031] The use of injection molds is divided into the following stages:

[0032] Injection molding stage. The process of injecting plastic into the mold through an injection machine. When the nozzle of the injection machine enters the mold, the mold will heat the plastic to make it soft and increase its fluidity. At the same time, the injection machine will apply a certain pressure to the plastic and inject it into the cavity in the mold.

[0033] Cooling phase. Once the plastic is formed, it needs to be cooled so that it becomes hard and can hold its shape. After being injected into the mold, the cooling system in the mold will allow coolant to flow through channels in the mold to reduce the internal temperature. The length of cooling time varies depending on the size and type of mold.

[0034] Demolding stage. When the plastic has cooled and set, it needs to be removed from the mold for the next round of injection molding. During this stage, the ejector pins in the mold will push out the plastic product in the mold, and then the product is removed from the mold with a clamp or manually.

[0035] The utility model is used for the cooling stage.

[0036] In this embodiment, refer to Figure 5 As shown, the upper heat dissipation structure 3 includes an intermediate heat dissipation channel 31 arranged on the upper mold core 22, and a plurality of first heat dissipation fins 32 and second heat dissipation fins 33 are arranged in the intermediate heat dissipation channel 31. The plurality of first heat dissipation fins 32 are arranged at equal intervals on one side wall of the intermediate heat dissipation channel 31, and the plurality of second heat dissipation fins 33 are arranged at equal intervals on the other side wall of the intermediate heat dissipation channel 31, and the first heat dissipation fins 32 and the second heat dissipation fins 33 are arranged alternately; a heat dissipation channel is formed between the plurality of first heat dissipation fins 32 and the plurality of second heat dissipation fins 33, so that the residence time of liquid cooling in the intermediate heat dissipation channel 31 is prolonged and the heat dissipation area is increased, so that the heat dissipation effect on the upper mold core 22 is better.

[0037] In this embodiment, refer to Figure 4 As shown, the upper heat dissipation channel is composed of three layers of interconnected liquid cooling heat dissipation channels 34, namely, upper, middle and lower layers, on the side walls around the upper mold core 22; the three layers of liquid cooling heat dissipation channels 34 can increase the heat dissipation area of ​​the upper mold core 22, so that the heat dissipation effect of the upper mold core 22 is better.

[0038] Through the liquid cooling flow channel formed by the three-layer liquid cooling heat dissipation channel 34 and the plurality of first heat sinks 32 and the plurality of second heat sinks 33 in the middle heat dissipation channel 31, comprehensive heat dissipation operation of the upper mold core 22 can be achieved, so that the heat dissipation effect of the upper mold core 22 is better and the heat dissipation effect of the product is accelerated.

[0039] In this embodiment, the liquid cooling heat dissipation channel 34 is interconnected with the middle heat dissipation channel 31, and the upper mold core 22 is provided with an upper liquid inlet and an upper liquid outlet that are connected to the middle heat dissipation channel 31. The liquid cooling in the upper mold core 22 is transported to the middle heat dissipation channel 31 and the three-layer liquid cooling heat dissipation channel 34 through the upper liquid inlet to dissipate heat for the upper mold core 22, and then the liquid cooling is discharged outward through the upper liquid outlet, cooled, and then transported to the upper mold core 22 again.

[0040] In this embodiment, refer to Figure 8 As shown, the lower heat dissipation structure 4 includes an intermediate heat dissipation tube 41 arranged in the middle of the lower mold core 12, and three intermediate heat dissipation tubes 41 are provided, and the intermediate heat dissipation tubes 41 are a curved structure; the intermediate heat dissipation tube 41 dissipates heat to the middle position of the lower mold core 12, and the three curved intermediate heat dissipation tubes 41 increase the heat dissipation area, thereby achieving a better heat dissipation effect.

[0041] In this embodiment, refer to Figure 8 As shown, the upper heat dissipation structure 3 further includes a curved heat dissipation pipe 42 arranged in the surrounding side walls of the lower mold core 12 ; the curved heat dissipation pipe 42 can dissipate heat from the surrounding side walls of the lower mold core 12 .

[0042] The middle heat dissipation pipe 41 and the surrounding heat dissipation pipes can realize the overall heat dissipation operation of the lower mold core 12, so that the heat dissipation effect of the lower mold core 12 is better and the heat dissipation effect of the product is accelerated.

[0043] In this embodiment, the curved heat dissipation tube 42 and the middle heat dissipation tube 41 are interconnected, and the lower mold core 12 is provided with a lower liquid inlet and a lower liquid outlet connected to the curved heat dissipation tube 42; the liquid cooling in the lower mold core 12 is transported to the curved heat dissipation tube 42 and the middle heat dissipation tube 41 through the lower liquid inlet to dissipate heat for the lower mold core 12, and then the liquid cooling is discharged outward through the lower liquid outlet, cooled, and then transported to the lower mold core 12 again.

[0044] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A mold structure that facilitates heat dissipation, comprising a lower base (1) and an upper base (2); An upper mounting block (21) and an upper mold core (22) are provided at the bottom of the upper base (2), and a lower mounting block (11) and a lower mold core (12) are provided at the top of the lower base (1); The upper die core (22) and the lower die core (12) are arranged opposite to each other, and are characterized in that: An upper heat dissipation structure (3) for dissipating heat from the upper mold core (22) is provided on the upper mold core (22); an upper heat dissipation channel is provided inside the upper mold core (22), and the upper heat dissipation structure (3) is located inside the upper heat dissipation channel; A lower heat dissipation structure (4) for dissipating heat from the lower mold core (12) is provided on the lower mold core (12), a lower heat dissipation channel is provided in the lower mold core (12), and the lower heat dissipation structure (4) is located in the lower heat dissipation channel.

2. A mold structure for facilitating heat dissipation according to claim 1, characterized in that: The upper heat dissipation structure (3) comprises an intermediate heat dissipation channel (31) arranged on the upper mold core (22), wherein a plurality of first heat dissipation fins (32) and second heat dissipation fins (33) are arranged in the intermediate heat dissipation channel (31), wherein the plurality of first heat dissipation fins (32) are arranged at equal intervals on a side wall of one side of the intermediate heat dissipation channel (31), and the plurality of second heat dissipation fins (33) are arranged at equal intervals on a side wall of the other side of the intermediate heat dissipation channel (31), and the first heat dissipation fins (32) and the second heat dissipation fins (33) are arranged in an interlaced manner.

3. A mold structure for facilitating heat dissipation according to claim 2, characterized in that: The upper heat dissipation channel comprises three layers of interconnected liquid cooling heat dissipation channels (34) at upper, middle and lower sides of the upper mold core (22).

4. A mold structure for facilitating heat dissipation according to claim 3, characterized in that: The liquid cooling heat dissipation channel (34) and the middle heat dissipation channel (31) are interconnected, and an upper liquid inlet and an upper liquid outlet connected to the middle heat dissipation channel (31) are provided on the upper mold core (22).

5. The mold structure for facilitating heat dissipation according to claim 1, characterized in that: The lower heat dissipation structure (4) comprises an intermediate heat dissipation pipe (41) arranged in the middle of the lower mold core (12), three intermediate heat dissipation pipes (41) are provided, and the intermediate heat dissipation pipes (41) are of a curved structure.

6. A mold structure for heat dissipation according to claim 5, characterized in that: The upper heat dissipation structure (3) also includes a curved heat dissipation pipe (42) arranged in the side walls around the lower mold core (12).

7. A mold structure for facilitating heat dissipation according to claim 6, characterized in that: The curved heat dissipation pipe (42) and the middle heat dissipation pipe (41) are connected to each other, and the lower mold core (12) is provided with a lower liquid inlet and a lower liquid outlet connected to the curved heat dissipation pipe (42).

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