A mold structure with uniform heat transfer

By setting a liquid guiding mechanism in the mold structure, the liquid can circulate within the mold, solving the problem of uneven heat transfer in the mold and improving the dimensional accuracy and performance stability of the product.

CN224323510UActive Publication Date: 2026-06-05DONGGUAN YONGWANG HARDWARE PLASTIC STEEL MOULD CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN YONGWANG HARDWARE PLASTIC STEEL MOULD CO LTD
Filing Date
2025-04-11
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Uneven heat transfer in the mold can lead to product quality problems, such as uneven shrinkage, internal stress, deformation, and difficulty in ensuring dimensional accuracy, which can affect the product's appearance and performance.

Method used

Design a structure including a lower mold and an upper mold. By setting a liquid guiding mechanism between the bottom plate and the top plate, and using a combination of liquid passage holes, horizontal holes and liquid guiding grooves, the liquid can circulate within the mold, ensuring uniform heat transfer.

Benefits of technology

This achieves uniform heat transfer within the mold, improving the dimensional accuracy and performance stability of the product and avoiding quality problems caused by uneven temperature.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of mould structures of uniform heat transfer, including lower mould and the upper mould of lower mould top, the lower mould includes bottom plate, the bottom plate center position is equipped with several first through holes, the bottom plate bottom end is provided with several spiral grooves, the upper mould includes top plate, the top plate center position is equipped with several second through holes, the bottom plate and top plate are commonly provided with two liquid guide mechanisms, the bottom plate bottom end one side is equipped with two through holes, which communicate with the one end of two liquid guide mechanisms, the bottom plate inside is equipped with the first horizontal hole, which communicates with the other end of two liquid guide mechanisms, the first through hole and second through hole are provided with four, the utility model has the advantage of uniform heat transfer, solve the problem of current mould structure temperature uneven.
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Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically to a mold structure with uniform heat transfer. Background Technology

[0002] With the development of modern manufacturing, the requirements for product precision and quality are becoming increasingly stringent, especially in fields such as electronics, aerospace, and automobiles. The production of some precision components requires molds with extremely high heat transfer uniformity to ensure the dimensional accuracy and performance stability of the products. For example, in the manufacture of precision components such as aero-engine blades, even minute differences in mold temperature can lead to deviations in the shape and size of the blades, affecting the engine's performance and reliability.

[0003] In molding processes such as injection molding and die casting, uneven heat transfer in the mold can lead to various quality problems in the product. For example, during injection molding, uneven mold temperature can cause the plastic melt to flow and cool at different rates in the cavity, resulting in uneven shrinkage of the product, generating internal stress, which in turn leads to product deformation, warping, and difficulty in ensuring dimensional accuracy, seriously affecting the product's appearance and performance. Utility Model Content

[0004] The purpose of this invention is to provide a mold structure with uniform heat transfer, which solves the problem of uneven temperature in current mold structures.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a mold structure for uniform heat transfer, comprising a lower mold and an upper mold at the top of the lower mold. The lower mold includes a base plate, with a plurality of first through holes at the center of the base plate and a plurality of spiral grooves at the bottom end of the base plate. The upper mold includes a top plate, with a plurality of second through holes at the center of the top plate. Two liquid guiding mechanisms are provided between the base plate and the top plate. Two liquid guiding holes are provided on one side of the bottom end of the base plate, connecting one end of the two liquid guiding mechanisms. A first transverse hole is provided inside the base plate, connecting the other end of the two liquid guiding mechanisms.

[0006] Preferably, there are four of each of the first and second through holes, wherein the first through hole penetrates the entire bottom plate and the second through hole penetrates the entire top plate, and the coaxial first and second through holes are interconnected.

[0007] Preferably, the liquid guiding mechanism includes a first groove and a second groove, the first groove and the second groove are located on the same side of the bottom plate, wherein the first groove and the second groove are respectively located above the liquid passage hole and the first transverse hole, the top of the first groove is provided with a first liquid guiding groove opened at the bottom end of the top plate, and the top of the second groove is provided with a second liquid guiding groove opened at the bottom end of the top plate.

[0008] Preferably, a first guide post is provided inside the first groove, and a water tank with a liquid passage hole is opened inside the first guide post. The top of the first guide post extends into the first liquid guide tank, and a gap is provided between the top of the first guide post and the top of the inside of the first liquid guide tank.

[0009] Preferably, a second guide post is provided inside the second groove, and a water tank communicating with the first transverse hole is opened inside the second guide post. The top end of the second guide post extends into the first liquid guiding tank, and a gap is provided between the top end of the second guide post and the top end of the second liquid guiding tank.

[0010] Preferably, a second transverse hole is provided between the first groove and the second groove, and the second transverse hole connects the first groove and the second groove.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model, by setting a liquid passage hole, a first horizontal hole and a liquid guiding mechanism, allows liquid to be injected into a liquid guiding mechanism through a liquid passage hole, and the liquid in the liquid guiding mechanism is guided into another liquid guiding mechanism through the first horizontal hole, and then discharged through another liquid passage hole, so that the liquid circulates in the mold and achieves the effect of uniform heat transfer.

[0013] 2. This utility model, by setting a first groove, a second groove, a first guide post, a second guide post, a first liquid guiding groove, a second liquid guiding groove, and a second transverse hole, allows liquid to be transported into the first guide post through a liquid passage hole, and discharged into the first liquid guiding groove through the top of the first guide post. The first liquid guiding groove and the first groove are interconnected, and the liquid in the first groove is discharged into the second groove through the second transverse hole. After the second groove is filled and rises to the top of the second liquid guiding groove, the liquid is discharged into another liquid guiding mechanism through the first transverse hole by the second guide post. This evenly distributes the water path in the lower mold and the upper mold, making the heat transfer of the mold more uniform. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 This is a bottom view of the structure of this utility model;

[0016] Figure 3 This is a schematic diagram showing the disassembled parts of this utility model;

[0017] Figure 4 This is a schematic diagram of the vertical cross-sectional structure of this utility model.

[0018] The reference numerals and names in the figure are as follows:

[0019] 1. Lower mold; 11. Base plate; 12. First through hole; 13. Spiral groove; 14. Liquid passage hole; 15. First horizontal hole; 2. Upper mold; 21. Top plate; 22. Second through hole; 3. Liquid guiding mechanism; 31. First groove; 32. Second groove; 33. First guide post; 34. Second guide post; 35. First liquid guiding groove; 36. Second liquid guiding groove; 37. Second horizontal hole. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] In the description of the embodiments of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the embodiments of this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0022] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0023] Please see Figures 1 to 4This utility model provides an embodiment of a mold structure with uniform heat transfer, comprising a lower mold 1 and an upper mold 2 at the top of the lower mold 1. The lower mold 1 includes a base plate 11, with a plurality of first through holes 12 at the center of the base plate 11 and a plurality of spiral grooves 13 at the bottom end of the base plate 11. The upper mold 2 includes a top plate 21, with a plurality of second through holes 22 at the center of the top plate 21. Two liquid guiding mechanisms 3 are provided between the base plate 11 and the top plate 21. Two liquid guiding holes 14 are provided on one side of the bottom end of the base plate 11, connecting one end of the two liquid guiding mechanisms 3. A first transverse hole 15 is provided inside the base plate 11, connecting the other end of the two liquid guiding mechanisms 3. There are four first through holes 12 and four second through holes 22, wherein the first through holes 12 penetrate the entire base plate 11, and the second through holes 22 penetrate the entire top plate 21, and the coaxial first through holes 12 and second through holes 22 are interconnected. The liquid guiding mechanism 3 includes a first groove 31 and a second groove 32, which are placed on the bottom. On the same side of plate 11, the first groove 31 and the second groove 32 are respectively positioned above the liquid passage hole 14 and the first transverse hole 15. The top of the first groove 31 is provided with a first liquid guide groove 35 opened at the bottom end of the top plate 21, and the top of the second groove 32 is provided with a second liquid guide groove 36 opened at the bottom end of the top plate 21. The first groove 31 is provided with a first guide post 33, and the first guide post 33 is provided with a water channel communicating with the liquid passage hole 14. The top of the first guide post 33 extends into the first liquid guide groove 35, and there is a gap between the top of the first guide post 33 and the top of the inside of the first liquid guide groove 35. The second groove 32 is provided with a second guide post 34, and the second guide post 34 is provided with a water channel communicating with the first transverse hole 15. The top of the second guide post 34 extends into the first liquid guide groove 35, and there is a gap between the top of the second guide post 34 and the top of the inside of the second liquid guide groove 36. The first groove 31 and the second groove 32 are provided with a second transverse hole 37, which connects the first groove 31 and the second groove 32.

[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A mold structure with uniform heat transfer, characterized in that: The mold includes a lower mold (1) and an upper mold (2) at the top of the lower mold (1). The lower mold (1) includes a base plate (11). The center of the base plate (11) is provided with several first through holes (12). The bottom end of the base plate (11) is provided with several spiral grooves (13). The upper mold (2) includes a top plate (21). The center of the top plate (21) is provided with several second through holes (22). The base plate (11) and the top plate (21) are provided with two liquid guiding mechanisms (3). The bottom end of the base plate (11) has two liquid guiding holes (14) that connect one end of the two liquid guiding mechanisms (3). The bottom plate (11) has a first transverse hole (15) that connects the other end of the two liquid guiding mechanisms (3).

2. The mold structure with uniform heat transfer according to claim 1, characterized in that: There are four of each of the first through hole (12) and the second through hole (22). The first through hole (12) penetrates the entire bottom plate (11), and the second through hole (22) penetrates the entire top plate (21). The coaxial first through hole (12) and the second through hole (22) are interconnected.

3. The mold structure with uniform heat transfer according to claim 1, characterized in that: The liquid guiding mechanism (3) includes a first groove (31) and a second groove (32). The first groove (31) and the second groove (32) are located on the same side of the bottom plate (11). The first groove (31) and the second groove (32) are located above the liquid passage hole (14) and the first horizontal hole (15), respectively. The top of the first groove (31) is provided with a first liquid guiding groove (35) opened at the bottom of the top plate (21), and the top of the second groove (32) is provided with a second liquid guiding groove (36) opened at the bottom of the top plate (21).

4. The mold structure with uniform heat transfer according to claim 3, characterized in that: The first groove (31) is provided with a first guide post (33), and the first guide post (33) is provided with a water tank that connects to the liquid passage (14). The top of the first guide post (33) extends into the first liquid guide groove (35), and there is a gap between the top of the first guide post (33) and the top of the first liquid guide groove (35).

5. The mold structure with uniform heat transfer according to claim 3, characterized in that: The second groove (32) is provided with a second guide post (34), and the second guide post (34) is provided with a water tank that connects to the first transverse hole (15). The top of the second guide post (34) extends into the first liquid guide groove (35), and there is a gap between the top of the second guide post (34) and the top of the second liquid guide groove (36).

6. The mold structure with uniform heat transfer according to claim 3, characterized in that: A second transverse hole (37) is provided between the first groove (31) and the second groove (32), and the second transverse hole (37) connects the first groove (31) and the second groove (32).