Cooling mechanism with water circulation function for mold vacuum quenching

Abstract

The utility model discloses a cooling mechanism with water circulation function for mould vacuum quenching, which comprises a horizontal liquid inlet box and a liquid discharge box arranged below the horizontal liquid inlet box, a liquid inlet pipe is mounted at a liquid inlet of the horizontal liquid inlet box, liquid collection boxes are integrally formed on two sides of the bottom end of the horizontal liquid inlet box, and the liquid collection boxes are connected with the horizontal liquid inlet box. A plurality of independent C-shaped one-way pipeline structures used for allowing cooling liquid to circulate are installed between the liquid collecting box and the liquid discharging box. The horizontal liquid inlet box, the liquid collecting box, the C-shaped one-way pipeline structures, the liquid discharging box and other structures form a multi-layer independent concentric-square-shaped pipeline structure, cooling liquid evenly flows through the peripheral outer wall face of the mold, each C-shaped one-way pipeline structure independently controls the flow direction, the cooling water can only flow along one designated path, and the cooling efficiency is improved. Therefore, the flowing direction of cooling water in each cooling pipeline is consistent, the surface area of the cooling pipeline is effectively increased, and the cooling water can fully contact with the surface of the mold to absorb heat on the surface of the mold.

Description

Technical Field

[0001] The utility model relates to the technical field of mold cooling, in particular to a cooling mechanism with a water circulation function for vacuum quenching of a mold. Background Art

[0002] Vacuum quenching technology plays a key role in mold processing. By rapidly cooling the mold in an oxygen-free environment, vacuum quenching significantly improves the mold's hardness and wear resistance, while effectively reducing machining deformation and residual stress, improving surface quality, and ensuring the mold's long-term, precise operation. To achieve the ideal quenching effect, a precise cooling mechanism is essential. This mechanism includes components such as a cooling medium supply system, a cooling control system, a cooling chamber, and a homogenizer. By precisely controlling the flow, temperature, and flow rate of the cooling medium, the workpiece's cooling rate is accurately controlled, preventing deformation or structural unevenness caused by uneven cooling. The design of the cooling mechanism takes into account the cooling rate requirements of different materials to ensure that the mold achieves the hardening effect and structural improvement required by the design. For example, a cooling mechanism with a water circulation function for vacuum quenching of a mold disclosed in the authorization announcement number CN216550558U includes a vacuum quenching furnace body, a mold is arranged inside the vacuum quenching furnace body, a cooling water tank is arranged on the mold, one side of the cooling water tank is connected to an input pipe, a water pump is fixedly installed on the outer wall of one side of the mold, a cooling water pipe is fixedly installed inside the mold, and a heat exchanger is fixedly installed on the outer wall of the other side of the mold. By setting a water pump, a heat exchanger and a refrigerator, the water pump is started, and the water inside the cooling water tank passes through the input pipe and The first water pipe reaches the cooling water pipe, thereby cooling the workpiece in the mold. The cooling water then reaches the heat exchanger through the second water pipe. The heat exchanger exchanges heat with the water. After the water is heat exchanged, it reaches the refrigerator through the third water pipe. The refrigerator cools and cools the water. After the water is cooled, it returns to the cooling water tank through the output pipe. However, this technical solution mainly uses the cooling water pipe to take away the heat from the outer surface of the mold during use, and the cooling water pipe used has a smaller coverage area than the mold, and is mainly concentrated on one side of the mold for heat exchange. This will cause local temperature differences in the mold during the cooling process. Especially for complex shapes or large molds, the local cooling effect may not be sufficient to ensure overall uniform cooling, thereby affecting the quenching effect and performance of the mold. Utility Model Content

[0003] The purpose of the utility model is to provide a cooling mechanism with a water circulation function for vacuum quenching of a mold, which utilizes a horizontal liquid inlet box, a liquid collecting box, a liquid distribution pipe, an L-shaped water cooling pipe, a one-way valve and a liquid discharge box to form a multi-layer zigzag structure of a one-way cooling pipeline, so as to evenly exchange heat and cool the outer wall surfaces around the mold to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a cooling mechanism with a water circulation function for vacuum quenching of molds, comprising a horizontal liquid inlet box and a liquid discharge box arranged below the horizontal liquid inlet box, the liquid inlet of the horizontal liquid inlet box is equipped with a liquid inlet pipe, and both sides of the bottom end of the horizontal liquid inlet box are integrally formed with a liquid collecting box, and a plurality of independent C-shaped one-way pipeline structures for circulating coolant are installed between the liquid collecting box and the liquid discharge box, a liquid discharge solenoid valve is installed on the outer wall of the liquid discharge box on the side away from the horizontal liquid inlet box, and a three-way reflux control valve group for interconnecting with the liquid inlet end of the liquid inlet pipe is installed on the outer wall of the liquid discharge box on the side close to the horizontal liquid inlet box.

[0005] Preferably, the C-type one-way pipeline structure includes a liquid separation tube installed on the outer wall of one side of the liquid collecting box and an L-shaped water-cooling tube installed at one end of the liquid separation tube, and the end of the L-shaped water-cooling tube away from the liquid separation tube is bent and extended toward the outer wall of the drain box. The C-type one-way pipeline structure also includes several one-way valves installed on the outer wall of the drain box, and one end of the one-way valve and one end of the L-shaped water-cooling tube are connected to each other.

[0006] Preferably, the outer peripheral surface of the L-shaped water-cooling tube is provided with heat dissipation fins.

[0007] Preferably, eight one-way valves are provided, and the eight one-way valves are symmetrically structured with respect to the vertical center reference plane of the drainage box.

[0008] Preferably, the liquid separation tube and the L-shaped water cooling tube are both made of copper.

[0009] Preferably, the three-way reflux control valve group includes a right-angle reflux pipe installed on the back of the drain box, a second solenoid valve installed on the top of the right-angle reflux pipe, and a three-way pipe for connecting the second solenoid valve and the opposite ends of the liquid inlet pipe. The first solenoid valve is installed at the end of the three-way pipe away from the liquid inlet pipe.

[0010] Preferably, the extension direction of the central axis of the liquid inlet pipe and the extension direction of the central axis of the right-angle return pipe are perpendicular to each other.

[0011] Preferably, a water pump is installed on one end of the right-angle return pipe surface.

[0012] Compared with the prior art, the beneficial effect of the utility model is that the cooling mechanism with water circulation function for vacuum quenching of the mold forms a multi-layer independent tortuous pipeline structure through a horizontal liquid inlet box, a liquid collecting box, a C-type one-way pipeline structure, a liquid discharge box and other structures. The coolant flows evenly through the outer wall surfaces of the mold. Each C-type one-way pipeline structure independently controls the flow direction so that the cooling water can only flow along a specified path, thereby ensuring that the cooling water flow direction in each cooling pipeline is consistent, which effectively increases the surface area of ​​the cooling pipeline, so that the cooling water can fully contact the mold surface and absorb the heat from the mold surface. Compared with the traditional single side cooling method, this design can significantly improve the cooling efficiency and accelerate the cooling rate of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model Figure 1 ;

[0015] Figure 3 This is a schematic diagram of the three-dimensional structure of the utility model Figure 2 ;

[0016] Figure 4 This is a schematic diagram of the three-dimensional structure of the utility model Figure 3 ;

[0017] Figure 5 This is a schematic diagram of the three-dimensional structure of the utility model Figure 4 .

[0018] In the figure: 1. Horizontal liquid inlet tank; 2. Liquid drain tank; 3. Liquid collecting box; 4. Liquid distribution pipe; 5. L-shaped water cooling pipe; 6. One-way valve; 7. Liquid inlet pipe; 8. Three-way reflux control valve group; 801. Right-angle reflux pipe; 802. Three-way pipe; 803. First solenoid valve; 804. Second solenoid valve; 9. Liquid drain solenoid valve; 10. Heat sink fins. DETAILED DESCRIPTION

[0019] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-5The utility model provides an embodiment of a cooling mechanism with a water circulation function for vacuum quenching of a mold, comprising a horizontal liquid inlet box 1 and a liquid discharge box 2 arranged below the horizontal liquid inlet box 1, a liquid inlet pipe 7 is installed at the liquid inlet of the horizontal liquid inlet box 1, and a liquid collecting box 3 is integrally formed on both sides of the bottom end of the horizontal liquid inlet box 1, and a plurality of independent C-shaped one-way pipe structures for circulating the coolant are installed between the liquid collecting box 3 and the liquid discharge box 2, a liquid discharge solenoid valve 9 is installed on the outer wall of the liquid discharge box 2 on the side away from the horizontal liquid inlet box 1, and a three-way reflux control valve group 8 for interconnecting with the liquid inlet end of the liquid inlet pipe 7 is installed on the outer wall of the liquid discharge box 2 on the side close to the horizontal liquid inlet box 1;

[0021] The C-type one-way pipeline structure includes a liquid separation pipe 4 installed on the outer wall of one side of the liquid collection box 3 and an L-shaped water-cooling pipe 5 installed at one end of the liquid separation pipe 4. The end of the L-shaped water-cooling pipe 5 away from the liquid separation pipe 4 is bent and extended toward the outer wall of the drain box 2. The C-type one-way pipeline structure also includes a plurality of one-way valves 6 installed on the outer wall of the drain box 2. One end of the one-way valve 6 and one end of the L-shaped water-cooling pipe 5 are connected to each other. When the coolant in the liquid collection box 3 is discharged into the drain box 2 through the liquid separation pipe 4, the L-shaped water-cooling pipe 5, and the one-way valve 6, its multiple uniform cooling flow paths and larger cooling surface area help to reduce the temperature gradient on the mold surface, which is particularly important for large or complex-shaped molds and can avoid residual stress and deformation caused by uneven temperature.

[0022] The outer circumference of the L-shaped water-cooling tube 5 is provided with heat dissipation fins 10, and eight one-way valves 6 are provided. The eight one-way valves 6 are symmetrically structured with respect to the vertical center reference plane of the drain tank 2;

[0023] The liquid separation pipe 4 and the L-shaped water cooling pipe 5 are both made of copper. The liquid separation pipe and the L-shaped water cooling pipe made of copper can effectively and quickly transfer the heat absorbed by the cooling medium to the external environment.

[0024] The three-way reflux control valve group 8 includes a right-angle reflux pipe 801 installed on the back of the drain tank 2, a second solenoid valve 804 installed on the top of the right-angle reflux pipe 801, and a three-way pipe 802 for connecting the second solenoid valve 804 and the opposite ends of the liquid inlet pipe 7. The first solenoid valve 803 is installed at the end of the three-way pipe 802 away from the liquid inlet pipe 7. The central axis extension direction of the liquid inlet pipe 7 is perpendicular to the central axis extension direction of the right-angle reflux pipe 801. When the coolant enters the horizontal liquid inlet tank 1 and fills After filling all the pipelines, the staff can close the drain solenoid valve 9 and the first solenoid valve 803 in the three-way reflux control valve group 8, and then the drain tank 2, the right-angle reflux pipe 801, the second solenoid valve 804, the three-way pipe 802, the liquid inlet pipe 7 and the horizontal liquid inlet tank 1 form a loop to allow the coolant to circulate fully until the heat exchange is completed. At this time, the drain solenoid valve 9 and the first solenoid valve 803 can be normally open, while the second solenoid valve 804 is normally closed, so that the coolant after sufficient heat exchange is discharged from the cooling mechanism;

[0025] A water pump is installed at one end of the surface of the right-angle return pipe 801. In order to allow the coolant in the drain tank 2 to flow into the horizontal liquid inlet tank 1, the staff can install a water pump on the path of the right-angle return pipe 801. The water pump is used to actively send the coolant in the drain tank 2 through the right-angle return pipe 801, the second solenoid valve 804, and the three-way pipe 802 into the horizontal liquid inlet tank 1, thereby achieving the purpose of actively circulating the coolant and providing the expected cooling effect more stably.

[0026] When the embodiment of the present application is in use, the staff first arranges the cooling mechanism inside the mold vacuum quenching furnace, and then connects the liquid inlet end of the three-way reflux control valve group 8 to the pumping end of the external coolant, such as a water pump, and the discharge solenoid valve 9 is connected to the recovery end of the external coolant, such as a refrigerator or a return water tank. The coolant cooled by the refrigerator can be connected to the pumping end of the coolant through structures such as a water tank and a hose, so as to realize the circulation of the coolant. When the external coolant is sent into the interior of the horizontal liquid inlet tank 1 through the three-way reflux control valve group 8 and the liquid inlet pipe 7, the coolant is diverted into the interior of the liquid collecting box 3 and is sent to the L-shaped water cooling pipe 5 through the liquid distribution pipe 4. In this process, the coolant exchanges heat with the mold, and the heated coolant enters the mold in one direction through the one-way valve 6. Inside the drain box 2, when the drain solenoid valve 9 is in the normally open state, the coolant can be discharged to the next device. The cooling mechanism forms a multi-layer independent circular pipeline structure through the horizontal liquid inlet box 1, the liquid collecting box 3, the liquid distribution pipe 4, the L-shaped water cooling pipe 5, the one-way valve 6, the drain box 2 and other structures. The coolant flows evenly through the outer wall of the mold. Each L-shaped water cooling pipe 5 is provided with a one-way valve 6 to control the flow direction so that the cooling water can only flow along a specified path, thereby ensuring that the cooling water flow direction in each cooling pipe is consistent, which effectively increases the surface area of ​​the cooling pipe, so that the cooling water can fully contact the mold surface and absorb the heat from the mold surface. Compared with the traditional single side cooling method, this design can significantly improve the cooling efficiency and accelerate the cooling rate of the mold.

[0027] It will be apparent 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 characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A cooling mechanism with water circulation function for vacuum quenching of a mold, characterized by: The invention comprises a horizontal liquid inlet box (1) and a liquid discharge box (2) arranged below the horizontal liquid inlet box (1); a liquid inlet pipe (7) is installed at the liquid inlet of the horizontal liquid inlet box (1); a liquid collecting box (3) is integrally formed on both sides of the bottom end of the horizontal liquid inlet box (1); a plurality of independent C-shaped one-way pipe structures for circulating coolant are installed between the liquid collecting box (3) and the liquid discharge box (2); a liquid discharge solenoid valve (9) is installed on the outer wall of the side of the liquid discharge box (2) away from the horizontal liquid inlet box (1); and a three-way reflux control valve group (8) for interconnecting with the liquid inlet end of the liquid inlet pipe (7) is installed on the outer wall of the side of the liquid discharge box (2) close to the horizontal liquid inlet box (1).

2. The cooling mechanism with water circulation function for vacuum quenching of a mold according to claim 1, characterized in that: The C-type one-way pipeline structure comprises a liquid separation pipe (4) mounted on the outer wall of one side of the liquid collecting box (3) and an L-shaped water cooling pipe (5) mounted on one end of the liquid separation pipe (4); the end of the L-shaped water cooling pipe (5) away from the liquid separation pipe (4) is bent and extended toward the outer wall of the liquid drain box (2); the C-type one-way pipeline structure further comprises a plurality of one-way valves (6) mounted on the outer wall of the liquid drain box (2); one end of the one-way valve (6) and one end of the L-shaped water cooling pipe (5) are in communication with each other.

3. The cooling mechanism with water circulation function for vacuum quenching of a mold according to claim 2, characterized in that: The outer peripheral surface of the L-shaped water cooling tube (5) is provided with heat dissipation fins (10).

4. The cooling mechanism with water circulation function for vacuum quenching of a mold according to claim 2, characterized in that: There are eight one-way valves (6), and the eight one-way valves (6) are symmetrically structured with respect to the vertical center reference plane of the drainage box (2).

5. The cooling mechanism with water circulation function for vacuum quenching of a mold according to claim 2, characterized in that: The liquid separation tube (4) and the L-shaped water cooling tube (5) are both made of copper.

6. The cooling mechanism with water circulation function for vacuum quenching of a mold according to claim 1, characterized in that: The three-way reflux control valve assembly (8) comprises a right-angle reflux pipe (801) mounted on the back of the drain tank (2), a second solenoid valve (804) mounted on the top end of the right-angle reflux pipe (801), and a three-way pipe (802) for connecting the second solenoid valve (804) and the opposite ends of the liquid inlet pipe (7), wherein the first solenoid valve (803) is mounted on the end of the three-way pipe (802) away from the liquid inlet pipe (7).

7. The cooling mechanism with water circulation function for vacuum quenching of a mold according to claim 6, characterized in that: The extension direction of the central axis of the liquid inlet pipe (7) and the extension direction of the central axis of the right-angle return pipe (801) are in a perpendicular structure.

8. The cooling mechanism with water circulation function for vacuum quenching of a mold according to claim 6, characterized in that: A water pump is installed on one end of the surface of the right-angle return pipe (801).

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