Die-casting die for processing metal barb

The upper and lower molds are driven by hydraulic cylinders and work together. Combined with a multi-pipeline and solenoid valve system, the system can flexibly switch between hot and cold liquids, solving the problem of inaccurate temperature control in traditional die-casting molds, improving cooling efficiency and mold life, and ensuring casting quality.

CN224294665UActive Publication Date: 2026-05-29DONGGUAN QINGCHENG HARDWARE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN QINGCHENG HARDWARE CO LTD
Filing Date
2025-04-25
Publication Date
2026-05-29

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Abstract

The utility model discloses a die -casting die for metal barb processing, including base, the middle part of the upper end surface of base is provided with the lower mould, and the lower mould is the cavity structure of inside hollow, the upper end surface of base is fixed with the frame at the both sides of lower mould, and the frame is fixed with hydraulic cylinder, and the output of hydraulic cylinder is connected with the upper mould, the base is the cavity structure of inside hollow, and is installed with the pump body in the cavity, and the input of pump body is connected with first pipeline, and one end of first pipeline is connected to the output port of first electromagnetic valve, and the first input of first electromagnetic valve is connected with second pipeline, and one end of second pipeline is connected to first liquid tank, the second input of first electromagnetic valve is connected with third pipeline, and one end of third pipeline is connected to second liquid tank. The utility model has the advantages of accurate temperature control, improve production efficiency and prolong the life of mould, solve the problem that traditional die -casting die temperature control is not accurate, and the low cooling efficiency and short life of mould.
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Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically to a die-casting mold for processing metal barbs. Background Technology

[0002] In metal die casting, mold temperature control has a significant impact on casting quality, production efficiency, and mold life. Traditional die casting mold temperature control systems mainly rely on a single cooling medium (such as water or oil) to achieve the cooling process through a cooling circuit within the mold. However, this single cooling method cannot meet the temperature control requirements at different stages, especially during the filling and molding stages of molten metal. Inaccurate temperature control can lead to casting defects or mold damage.

[0003] Currently, the shortcomings of mold temperature control systems are: first, it is difficult to adjust the temperature in real time, resulting in low cooling efficiency; second, the temperature control loop of traditional molds cannot flexibly cope with different temperature requirements, especially in scenarios where higher temperatures are needed to maintain the fluidity of liquid metal and lower temperatures are needed for rapid cooling of metal forming. Utility Model Content

[0004] The purpose of this invention is to provide a die-casting mold for metal barb processing, which has the advantages of precise temperature control, improved production efficiency and extended mold life, and solves the problems of inaccurate temperature control, low cooling efficiency and short mold life of traditional die-casting molds.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a die-casting mold for processing metal barbs, comprising a base, a lower mold disposed in the middle of the upper end face of the base, the lower mold being a hollow cavity structure, a frame fixed on both sides of the upper end face of the base located on the lower mold, a hydraulic cylinder fixed on the frame, the output end of the hydraulic cylinder connected to an upper mold, the base being a hollow cavity structure, a pump body installed inside the cavity, the input end of the pump body connected to a first pipe, one end of the first pipe connected to the output port of a first solenoid valve, the first input port of the first solenoid valve connected to a second pipe, one end of the second pipe connected to a first liquid tank, the second input port of the first solenoid valve connected to a third pipe, one end of the third pipe connected to a second liquid tank.

[0006] Preferably, a sliding sleeve is installed through both sides of the hydraulic cylinder on the frame, and a sliding rod is inserted inside the sliding sleeve.

[0007] Preferably, the output end of the pump body is connected to a fourth pipe, and one end of the fourth pipe is connected to the lower mold.

[0008] Preferably, the first liquid tank is a hollow cavity structure with a heating rod installed inside. A fifth pipe is connected to the first liquid tank, one end of which is connected to the first output port of the second solenoid valve. A sixth pipe is connected to the second output port of the second solenoid valve, one end of which is connected to the input port of the radiator. A seventh pipe is connected to the output port of the radiator, one end of which is connected to the second liquid tank.

[0009] Preferably, the input port of the second solenoid valve is connected to an eighth pipe, and one end of the eighth pipe is connected to the lower mold.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. This utility model, through the cooperation of the upper and lower molds, allows the molten metal to be die-cast to be transferred between them, achieving the effect of providing a hook die-casting forming position. The installation of the hydraulic cylinder allows the upper mold to be raised and lowered, achieving the effect of lowering the upper mold to merge with the lower mold for die-casting and raising it for demolding. The hollow cavity structure inside the lower mold is designed to allow the pump to draw the hot liquid from the first liquid tank and the cold liquid from the second liquid tank into its interior for flow, heating the molten metal to quickly fill it and removing heat for cooling. The installation of the pump allows both the hot and cold liquids from the first and second liquid tanks to be transported into the cavity inside the lower mold. By setting a first solenoid valve, the passage between the first pipe and the second and third pipes can be switched, achieving the effect of switching according to the different liquids to be transferred so that they flow into the pump body respectively. By setting a heating rod, the liquid in the first liquid tank can be heated, achieving the effect of active heating. By setting a second solenoid valve, the passage between the eighth pipe and the fifth and sixth pipes can be switched, achieving the effect of switching according to the different liquids to be transferred so that they flow into the first and second liquid tanks respectively. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the main appearance structure of this utility model;

[0013] Figure 2 This is a top view of the internal structure of the lower mold of this utility model;

[0014] Figure 3 This is a top view of the internal structure of the base of this utility model;

[0015] Figure 4 This is a schematic diagram of the internal structure of the first liquid tank of this utility model;

[0016] Figure 5 This is a schematic diagram of the first solenoid valve structure of this utility model;

[0017] Figure 6This is a schematic diagram of the second solenoid valve structure of this utility model.

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

[0019] 1. Base; 2. Lower mold; 3. Frame; 4. Hydraulic cylinder; 5. Upper mold; 6. Pump body; 7. First pipe; 8. First solenoid valve; 81. Output port; 82. First input port; 83. Second input port; 9. Second pipe; 10. First liquid tank; 11. Third pipe; 12. Second liquid tank; 13. Sliding sleeve; 14. Sliding rod; 15. Fourth pipe; 16. Heating rod; 17. Fifth pipe; 18. Second solenoid valve; 181. First output port; 182. Second output port; 183. Input port; 19. Sixth pipe; 20. Radiator; 21. Seventh pipe; 22. Eighth pipe. 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 6 This utility model provides an embodiment of a die-casting mold for processing metal barbs, including a base 1, a lower mold 2 disposed in the middle of the upper end face of the base 1, the lower mold 2 having an internally hollow cavity structure, a frame 3 fixed on both sides of the upper end face of the base 1 located on the lower mold 2, a hydraulic cylinder 4 fixed on the frame 3, the output end of the hydraulic cylinder 4 connected to an upper mold 5, the base 1 having an internally hollow cavity structure, a pump body 6 installed inside the cavity, the input end of the pump body 6 connected to a first pipe 7, one end of the first pipe 7 connected to the output port 81 of a first solenoid valve 8, the first input port 82 of the first solenoid valve 8 connected to a second pipe 9, one end of the second pipe 9 connected to a first liquid tank 10, the second input port 83 of the first solenoid valve 8 connected to a third pipe 11, one end of the third pipe 11 connected to a second liquid tank 12.

[0024] Please see Figures 1 to 6Through the cooperation of the upper mold 5 and the lower mold 2, the molten metal to be die-cast can be transferred between them, achieving the effect of providing the die-casting position for the hook. The hydraulic cylinder 4 adopts the Bauer Series 100 model, which is suitable for high temperature and pressure environments and is heat-resistant and wear-resistant, making it a preferred choice for this invention. The installation of the hydraulic cylinder 4 allows the upper mold 5 to move up and down, achieving the effects of lowering the upper mold 5 to merge with the lower mold 2 for die-casting and raising it for demolding. The hollow cavity structure inside the lower mold 2 is designed to allow the pump body 6 to draw the hot liquid from the first liquid tank 10 and the cold liquid from the second liquid tank 12 into its interior for flow, heating the molten metal to quickly fill it and removing heat for cooling. The pump body 6 adopts the Wilo-himulti3 model, which is suitable for the transfer of hot and cold liquids, has corrosion resistance, and can operate stably at high and low temperatures, making it a preferred choice for this invention. The installation of body 6 allows both hot and cold liquids in the first liquid tank 10 and the second liquid tank 12 to be transported into the cavity inside the lower mold 2. The arrangement of the first liquid tank 10 and the second liquid tank 12 provides storage space for hot and cold liquids. The first solenoid valve 8 is an ASCO8210 model, which is widely used in the control of liquids of various temperatures. It has good sealing performance and reliability and is suitable for systems that require frequent switching of hot and cold fluids. It is preferred in this utility model. By setting the first solenoid valve 8, the passage between the first pipe 7 and the second pipe 9 and the third pipe 11 can be switched, achieving the effect of switching according to the different liquids to be transported so that they flow into the pump body 6 respectively.

[0025] Specifically, sliding sleeves 13 are installed through both sides of the hydraulic cylinder 4 on the frame 3, and sliding rods 14 are inserted inside the sliding sleeves 13. Through the cooperation of the sliding sleeves 13 and the sliding rods 14, the hydraulic cylinder 4 stabilizes both ends of the upper mold 5 when it moves up and down, thus achieving the effect of stabilizing the up and down movement of the upper mold 5.

[0026] Specifically, the output end of the pump body 6 is connected to a fourth pipe 15, one end of which is connected to the lower mold 2. The installation of the fourth pipe 15 allows the hot or cold liquid drawn into the pump body 6 to be transferred to the cavity inside the lower mold 2 through this pipe.

[0027] Specifically, the first liquid tank 10 is a hollow cavity structure, and a heating rod 16 is installed inside the cavity. A fifth pipe 17 is connected to the first liquid tank 10. One end of the fifth pipe 17 is connected to the first output port 181 of the second solenoid valve 18. The second output port 182 of the second solenoid valve 18 is connected to a sixth pipe 19. One end of the sixth pipe 19 is connected to the input end of the radiator 20. The output end of the radiator 20 is connected to a seventh pipe 21. One end of the seventh pipe 21 is connected to the second liquid tank 12. The heating rod 16 is a Wattco model, which is suitable for heating liquids. It is made of stainless steel and can provide a uniform heating effect, making it a preferred choice in this invention. By setting the heating rod 16, the liquid in the first liquid tank 10 can be heated, achieving an active heating effect. The second solenoid valve 18 is an ASCO8210 model, which is widely used for controlling liquids of various temperatures. It has good sealing performance and reliability and is suitable for systems that require frequent switching between hot and cold fluids, making it a preferred choice in this invention. By setting the second solenoid valve 18, the passage between the eighth pipe 22 and the fifth pipe 17 and the sixth pipe 19 can be switched, achieving the effect of switching the flow of different liquids into the first liquid tank 10 and the second liquid tank 12 respectively. The radiator 20 is a TSK-2525 model, which is used for efficient heat dissipation, especially suitable for use in cooling systems. It can effectively reduce water temperature, making it a preferred choice in this invention. The installation of the radiator 20 allows the liquid that has absorbed heat from the module to be dissipated after being transported into it. After heat dissipation, it can be transferred back to the second liquid tank 12 for recycling.

[0028] Specifically, the input port 183 of the second solenoid valve 18 is connected to an eighth pipe 22, one end of which is connected to the lower mold 2. The installation of the eighth pipe 22 allows the liquid after heating the lower mold 2 and the liquid after cooling the lower mold 2 to be transferred back to the interior of the first liquid tank 10 and the second liquid tank 12 through this pipe.

[0029] Working Principle: Before use, the operator needs to connect an external power supply to the device and control its operation via a control panel. The operator controls the injection molding machine to inject molten metal into the lower mold 2 and upper mold 5 through pipes and a pouring port. After injection, the operator controls the pump body 6 to draw the liquid heated by the heating rod 16 from the first liquid tank 10 into the lower mold 2 through the first pipe 7, the first solenoid valve 8, and the second pipe 9. The liquid is then transported to the cavity inside the lower mold 2 through the fourth pipe 15. The hot liquid entering this cavity heats the molten metal that has just entered the lower mold 2, causing it to fill quickly. The heated liquid is then returned to the first liquid tank 10 through the eighth pipe 22, the second solenoid valve 18, and the fifth pipe 17 for recirculation and heating. When filling is complete, the operator stops the heating rod 16 and controls the first solenoid valve 8 and the second solenoid valve 9. The two solenoid valves 18 change the channel, closing the channel between the first pipe 7 and the second pipe 9, and opening the channel between the first pipe 7 and the third pipe 11. They also close the channel between the eighth pipe 22 and the fifth pipe 17, and open the channel between the eighth pipe 22 and the sixth pipe 19. When the pump body 6 is running again, it will draw the cold liquid in the second liquid tank 12 into the pump body 6, and transport it to the lower mold 2 through the fourth pipe 15 to cool the barbed mold part that is being formed. The cooled liquid will be transferred to the inside of the radiator 20 through the eighth pipe 22 and the sixth pipe 19, where the radiator 20 will dissipate the heat. The cooled liquid will then be transferred back to the second liquid tank 12 for recycling. After the mold part is cooled and formed, the operator controls the hydraulic cylinder 4 to lift the upper mold 5. After the upper mold 5 is lifted, the operator can demold and remove the mold part that has been formed in the lower mold 2.

[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.

Claims

1. A die-casting mold for machining metal barbs, comprising a base (1), characterized in that: The upper end face of the base (1) is provided with a lower mold (2). The lower mold (2) is a hollow cavity structure. The upper end face of the base (1) is fixed with a frame (3) on both sides of the lower mold (2). A hydraulic cylinder (4) is fixed on the frame (3). The output end of the hydraulic cylinder (4) is connected to the upper mold (5). The base (1) is a hollow cavity structure. A pump body (6) is installed inside the cavity. The input end of the pump body (6) is connected to a first pipe (7). One end of the first pipe (7) is connected to the output port (81) of the first solenoid valve (8). The first input port (82) of the first solenoid valve (8) is connected to a second pipe (9). One end of the second pipe (9) is connected to the first liquid tank (10). The second input port (83) of the first solenoid valve (8) is connected to a third pipe (11). One end of the third pipe (11) is connected to the second liquid tank (12).

2. The die-casting mold for machining metal barbs according to claim 1, characterized in that: Slide sleeves (13) are installed through the frame (3) on both sides of the hydraulic cylinder (4), and slide rods (14) are inserted inside the slide sleeves (13).

3. The die-casting mold for machining metal barbs according to claim 1, characterized in that: The output end of the pump body (6) is connected to a fourth pipe (15), and one end of the fourth pipe (15) is connected to the lower mold (2).

4. The die-casting mold for machining metal barbs according to claim 1, characterized in that: The first liquid tank (10) is a hollow cavity structure. A heating rod (16) is installed inside the cavity. A fifth pipe (17) is connected to the first liquid tank (10). One end of the fifth pipe (17) is connected to the first output port (181) of the second solenoid valve (18). The second output port (182) of the second solenoid valve (18) is connected to the sixth pipe (19). One end of the sixth pipe (19) is connected to the input end of the radiator (20). The output end of the radiator (20) is connected to the seventh pipe (21). One end of the seventh pipe (21) is connected to the second liquid tank (12).

5. A die-casting mold for machining metal barbs according to claim 4, characterized in that: The input port (183) of the second solenoid valve (18) is connected to the eighth pipe (22), and one end of the eighth pipe (22) is connected to the lower mold (2).