A water-cooled mold frame structure

By designing a water-cooled mold frame structure and adopting a modular plug-in method using a rectangular frame and serpentine cooling water pipes, the problems of inconvenient replacement and maintenance and poor versatility of traditional mold frames are solved, achieving convenient mold replacement and efficient heat dissipation.

CN224545246UActive Publication Date: 2026-07-24NINGBO FANGTE MOLD BASE TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO FANGTE MOLD BASE TECHNOLOGY CO LTD
Filing Date
2025-09-03
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Traditional mold frame water-cooling structures are inconvenient to replace and maintain, have poor versatility, resulting in long mold replacement times and high costs, and cannot meet the heat dissipation requirements of different molds.

Method used

A water-cooled mold frame structure was designed, which adopts a rectangular frame and serpentine cooling water pipes, combined with inlet and outlet water connectors and external brackets, to achieve modular replacement and quick plug-in, and is suitable for efficient heat dissipation of various molds.

Benefits of technology

Modular design simplifies the mold replacement process, shortens mold change time, reduces maintenance costs, and improves heat dissipation efficiency and versatility.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a water -cooling formula die carrier structure relates to mould manufacturing technical field, including upper die holder, lower die holder, guide pillar, guide bushing, rectangular frame, cooling water pipe, external support and waterway interface. Upper die holder and lower die holder realize vertical direction guide cooperation through guide pillar and guide bushing, and both are provided with the rectangular through slot that penetrates, rectangular frame is adapted to insert into rectangular through slot, and its inside is equipped with the rectangular cross section cooling water pipe of serpentine arrangement, and the upper and lower surface of cooling water pipe is attached with rectangular through slot inner wall, rectangular frame one side is equipped with water inlet joint and water outlet joint, and is connected with the water inlet interface and water outlet interface on external support and is inserted fast, and the other end connection circulation cooling pipe forms cooling circulation. The utility model discloses through rectangular cross section cooling water pipe increases the heat dissipation area, and modular rectangular frame realizes quick replacement, and external support optimization operation space, and has efficient heat dissipation, convenient maintenance and wide adaptability, is applicable to all kinds of need accurate temperature control's forming mould.
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Description

Technical Field

[0001] This utility model relates to the field of mold manufacturing technology, specifically a water-cooled mold frame structure. Background Technology

[0002] In the mold manufacturing industry, the mold base, as the basic load-bearing component of the mold, directly affects the service life of the mold and the quality of the molded product through temperature control. For processes such as injection molding and die casting, the mold accumulates a large amount of heat during operation due to continuous contact with high-temperature molten material. If heat cannot be dissipated in time, it can lead to problems such as thermal deformation of the mold base, extended molding cycle, shrinkage cavities in the product, or out-of-tolerance dimensional accuracy.

[0003] Currently, traditional water-cooling structures for mold bases mostly employ the method of directly machining circular water channels within the mold base, using cooling water circulation to remove heat. However, this type of structure has the following drawbacks: 1. Inconvenient replacement and maintenance: The water system and mold base are machined as a whole. When the mold needs to be replaced or the water system is blocked or damaged, the mold base needs to be completely disassembled or re-machined, which results in long mold replacement time and high maintenance costs. 2. Poor versatility: Different molds have different heat dissipation characteristics, and traditional fixed water channels cannot meet the heat dissipation needs of various molds. Custom mold frames are required for each mold, which increases production costs.

[0004] Therefore, developing a water-cooled mold frame structure that combines efficient heat dissipation, modular replacement, convenient operation, and strong versatility has become the key to solving the above problems.

[0005] Those skilled in the art have provided a water-cooled mold frame structure to solve the problems mentioned in the background art. Utility Model Content

[0006] The purpose of this utility model is to provide a water-cooled mold frame structure to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: A water-cooled mold frame structure includes an upper mold base, a lower mold base, guide pillars, guide sleeves, a rectangular frame, cooling water pipes, an external support, and a water channel interface. The upper mold base and the lower mold base are vertically guided and fitted by the guide pillars and guide sleeves. Both the upper mold base and the lower mold base have through rectangular slots. The rectangular frame is adapted to be inserted into the rectangular slots, and the outer wall of the rectangular frame is in contact with the inner wall of the rectangular slots. The cooling water pipes are arranged in a serpentine pattern inside the rectangular frame. The cross-section of the cooling water pipes is rectangular, and their upper and lower surfaces are in contact with the upper and lower inner walls of the rectangular slots, respectively.

[0008] As a further embodiment of this utility model: one side of the rectangular frame is provided with a water inlet connector and a water outlet connector, and the two ends of the cooling water pipe are respectively connected to the water inlet connector and the water outlet connector.

[0009] As a further improvement of this utility model, the external bracket is fixed to the outer wall of one side of the mold base with a rectangular through groove.

[0010] As a further improvement of this utility model: the water interface includes an inlet interface and an outlet interface, both of which are installed on the external bracket and can be quickly connected to the inlet connector and the outlet connector respectively.

[0011] As a further improvement of this utility model, the other end of both the water inlet and the water outlet is fixedly connected to a circulating cooling pipe to form a cooling circulation path.

[0012] As a further improvement of this utility model: the rectangular frame is made of aluminum alloy, the cooling water pipe is made of copper, and the upper and lower surfaces of the cooling water pipe are flush with the upper and lower surfaces of the rectangular frame.

[0013] As a further improvement of this utility model: the external bracket is an L-shaped steel plate, including a horizontal fixing plate and a vertical mounting plate. The horizontal fixing plate is fixedly connected to the outer wall of the mold base by bolts, and the vertical mounting plate has two through holes for installing water inlet and water outlet interfaces.

[0014] As a further improvement of this utility model: both the inlet and outlet connectors are provided with annular sealing grooves on their outer peripheries, and O-rings are fitted inside the sealing grooves; the inner walls of the inlet and outlet interfaces are provided with sealing steps that are adapted to the O-rings, and when the inlet connector is inserted into the inlet interface and the outlet connector is inserted into the outlet interface, the O-rings fit tightly with the sealing steps.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: The mold frame innovatively sets through rectangular slots in both the upper and lower mold bases, and adapts to the rectangular frame into which a built-in serpentine rectangular cross-section cooling water pipe is inserted. The upper and lower surfaces of the rectangular cross-section cooling water pipe can fit tightly against the inner wall of the rectangular slot. The modular plug-in design of the rectangular frame and the mold base, combined with the quick-connect structure of the water inlet and outlet connectors on one side of the rectangular frame and the water inlet and outlet interfaces on the external bracket, eliminates the need for complicated disassembly of the water pipes when changing the mold. The water cooling components can be replaced simply by pulling and inserting the rectangular frame, which significantly shortens the mold change time and improves production efficiency. It is suitable for various mold scenarios that require efficient heat dissipation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a water-cooled mold frame.

[0017] Figure 2 This is a schematic diagram of an external support structure in a water-cooled mold frame structure.

[0018] Figure 3 This is a schematic diagram of a rectangular frame in a water-cooled mold frame structure.

[0019] Figure 4 for Figure 2 Enlarged view of point a in the middle.

[0020] In the diagram: 1. Upper mold base; 2. Lower mold base; 3. Guide pillar; 4. Guide sleeve; 5. Rectangular frame; 6. Cooling water pipe; 7. External bracket; 8. Water inlet connector; 9. Rectangular through slot; 10. Water outlet interface; 11. Water inlet interface; 12. Circulating cooling pipe; 13. Water outlet connector. Detailed Implementation

[0021] 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.

[0022] Reference Figures 1-4 This embodiment provides a water-cooled mold frame structure, including an upper mold base 1, a lower mold base 2, guide pillars 3, guide sleeves 4, a rectangular frame 5, cooling water pipes 6, an external support 7, and a water channel interface.

[0023] The upper mold base 1 and the lower mold base 2 are arranged in parallel. The guide pillars 3 are fixed at the four corners of the lower mold base 2, and the guide sleeves 4 are installed at the four corners of the upper mold base 1 respectively. The guide pillars 3 and the guide sleeves 4 are slidably engaged to realize the vertical guidance of the upper mold base 1 and the lower mold base 2 and ensure the mold closing accuracy.

[0024] Both the upper mold base 1 and the lower mold base 2 have through rectangular slots 9 with rectangular cross-sections. The rectangular frame 5 is shaped to fit the rectangular slot 9. After being inserted into the rectangular slot 9, the outer wall of the rectangular frame 5 fits tightly against the inner wall of the rectangular slot 9, with a clearance of 0.1-0.2mm. This facilitates the insertion and removal of the rectangular frame 5 while ensuring tight contact. A 5-10mm gap is left between the two ends of the rectangular slot 9 and the side of the mold base to prevent a decrease in strength at the edges of the mold base due to the slotting.

[0025] The rectangular frame 5 can be made of, but is not limited to, 6061-T6 aluminum alloy, which has good thermal conductivity and rigidity. The cooling water pipe 6 is made of copper and is arranged in a serpentine pattern inside the rectangular frame 5. The cross-section of the cooling water pipe 6 is rectangular, and its upper and lower surfaces are flush with the upper and lower surfaces of the rectangular frame 5 to ensure full contact with the upper and lower inner walls of the rectangular through groove 9 and increase the heat dissipation area.

[0026] One side of the rectangular frame 5 is integrally formed with a water inlet connector 8 and a water outlet connector 13. The two ends of the cooling water pipe 6 are welded to the water inlet connector 8 and the water outlet connector 13 respectively. The outer periphery of the water inlet connector 8 and the water outlet connector 13 is provided with annular sealing grooves and built-in high-temperature resistant O-rings for sealing during insertion.

[0027] The external support 7 is an L-shaped steel plate, including a horizontal fixing plate and a vertical mounting plate. The horizontal fixing plate is fixed to the outer wall of the mold base with bolts. The vertical mounting plate has through holes for installing the water inlet 11 and the water outlet 10. The inner walls of the water inlet 11 and the water outlet 10 are provided with sealing steps, which cooperate with the O-rings of the water inlet connector 8 and the water outlet connector 13 to form a seal and achieve quick connection.

[0028] The other ends of the water inlet 11 and the water outlet 10 are connected to the circulating cooling pipe 12 by threads. The circulating cooling pipe 12 is connected to a chiller, forming a cooling circulation path of "chiller → circulating cooling pipe → water inlet → water inlet connector → cooling water pipe → water outlet connector → water outlet → circulating cooling pipe → chiller".

[0029] During installation, insert the rectangular frame 5 into one end of the rectangular through slot 9. Apply thermal grease to the contact surface of the cooling water pipe 6 to eliminate gaps. Align the inlet connector 8 and outlet connector 13 with the inlet interface 11 and outlet interface 10 on the external bracket 7 and insert them into place. Ensure the O-ring seal fits tightly against the sealing step to achieve a seal. Start the chiller. Cooling water enters the cooling water pipe 6 through the circulating cooling pipe 12, inlet interface 11, and inlet connector 8. During the flow in the serpentine pipe, it absorbs the heat transferred from the mold base and then flows back to the chiller through the outlet connector 13, outlet interface 10, and circulating cooling pipe 12 to cool down, thus completing heat dissipation. When replacing the rectangular frame 5, disconnect the connector from the interface and push the rectangular frame 5 out of the rectangular through slot 9. Repeat the above installation steps after replacing the new frame.

[0030] 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.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A water-cooled mold frame structure, characterized in that, It includes an upper mold base (1), a lower mold base (2), a guide post (3), a guide sleeve (4), a rectangular frame (5), a cooling water pipe (6), an external bracket (7), and a water channel interface; the upper mold base (1) and the lower mold base (2) are vertically guided and fitted by the guide post (3) and the guide sleeve (4). Both the upper mold base (1) and the lower mold base (2) are provided with through rectangular slots (9). The rectangular frame (5) is adapted to be inserted into the rectangular slot (9), and the outer wall of the rectangular frame (5) is in contact with the inner wall of the rectangular slot (9). The cooling water pipe (6) is arranged in a serpentine shape inside the rectangular frame (5). The cross-section of the cooling water pipe (6) is rectangular, and its upper and lower surfaces are in contact with the upper and lower inner walls of the rectangular slot (9), respectively.

2. The water-cooled mold frame structure according to claim 1, characterized in that, The rectangular frame (5) has an inlet connector (8) and an outlet connector (13) on one side, and the two ends of the cooling water pipe (6) are connected to the inlet connector (8) and the outlet connector (13) respectively.

3. The water-cooled mold frame structure according to claim 2, characterized in that, The external bracket (7) is fixed to the outer wall of one side of the mold base with a rectangular through groove (9).

4. The water-cooled mold frame structure according to claim 3, characterized in that, The water interface includes an inlet interface (11) and an outlet interface (10), both of which are installed on the external bracket (7) and are quickly connected to the inlet connector (8) and the outlet connector (13) respectively.

5. A water-cooled mold frame structure according to claim 4, characterized in that, The other ends of the water inlet (11) and water outlet (10) are fixedly connected to a circulating cooling pipe (12) to form a cooling circulation path.

6. The water-cooled mold frame structure according to claim 1, characterized in that, The rectangular frame (5) is made of aluminum alloy, and the cooling water pipe (6) is made of copper. The upper and lower surfaces of the cooling water pipe (6) are flush with the upper and lower surfaces of the rectangular frame (5).

7. A water-cooled mold frame structure according to claim 3, characterized in that, The external bracket (7) is an L-shaped steel plate, including a horizontal fixing plate and a vertical mounting plate. The horizontal fixing plate is fixedly connected to the outer wall of the mold base by bolts. The vertical mounting plate has two through holes for installing the water inlet interface (11) and the water outlet interface (10).

8. A water-cooled mold frame structure according to claim 4, characterized in that, The outer periphery of the water inlet connector (8) and the water outlet connector (13) is provided with an annular sealing groove, and an O-ring is fitted inside the sealing groove; the inner wall of the water inlet interface (11) and the water outlet interface (10) is provided with a sealing step that is compatible with the O-ring. When the water inlet connector (8) is inserted into the water inlet interface (11) and the water outlet connector (13) is inserted into the water outlet interface (10), the O-ring fits tightly with the sealing step.