Drainage structure of cast-weld mold

Abstract

The utility model discloses a cast-weld mould drainage structure which comprises a cast-weld mould provided with a cooling channel, the cooling channel forms a cooling water circulation path through a circulation cooling system, and the circulation cooling system comprises a water inlet pipe and a water outlet pipe which are respectively communicated with the water inlet end and the water outlet end of the cooling channel. The water inlet pipe and the water outlet pipe are provided with a first control valve and a second control valve respectively, a water pumping pipe communicated with the water outlet pipe is arranged between the cast-weld mold and the second control valve, the water outlet end of the water pumping pipe is connected with a water storage tank, and the water storage tank is communicated with the water outlet pipe on the downstream of the second control valve through a water drainage pipe. A third control valve is arranged on the water pumping pipe, and a fourth control valve is arranged on the water drainage pipe. Residual water in the cooling water channel of the cast-weld mold can be effectively discharged, the preheating time of the mold is prevented from being prolonged in subsequent heating, and the temperature uniformity of the mold is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of battery production, and particularly relates to a cast welding die drainage structure. BACKGROUND

[0002] In the field of lead-acid battery manufacturing, the cast welding process is a key technical link for forming the busbar of the pole group. The process forms the busbar by injecting molten lead liquid into the bottom mold cavity of the cast welding die and metallurgically combining it with the pole plate, wherein the rapid cooling and solidification process of the lead liquid directly determines the crystal structure and conductivity of the busbar. To ensure the cast welding quality, the existing technology generally adopts a bottom mold built-in cooling water channel structure, and forms a cooling water circulation path through an external water inlet pipe and a water outlet pipe. The electromagnetic valve on the water inlet pipe and the water outlet pipe controls the on-off, and after the cast welding is completed, the electromagnetic valve is opened to start the cooling circulation to accelerate heat dissipation. The water flows through the internal pipe of the bottom mold to take away the heat, and when the temperature of the mold drops to a set value, the electromagnetic valve is closed to stop the water flow.

[0003] In actual use, when the electromagnetic valve is closed, there will still be a lot of cooling water remaining in the cooling water channel of the bottom mold and cannot be discharged. When the mold enters the next heating stage, the remaining water will evaporate at high temperature. The water vapor evaporation needs to absorb a large amount of heat, which prolongs the mold preheating time and increases the energy consumption. The uneven distribution of the remaining water will cause the uniformity of the mold temperature to decrease, which further affects the uniformity of the lead liquid solidification and reduces the product pass rate. SUMMARY

[0004] The utility model aims at providing a cast welding die drainage structure which can effectively discharge the remaining water in the cooling water channel of the cast welding die, avoid prolonging the mold preheating time in subsequent heating, and effectively improve the uniformity of the mold temperature.

[0005] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of a cast welding die drainage structure, which comprises a cast welding die provided with a cooling channel, the cooling channel forms a cooling water circulation path through a circulating cooling system, the circulating cooling system comprises a water inlet pipe and a water outlet pipe which are respectively communicated with the water inlet end and the water outlet end of the cooling channel, the water inlet pipe and the water outlet pipe are respectively provided with a first control valve and a second control valve, a water suction pipe which is communicated with the water outlet pipe is arranged between the cast welding die and the second control valve, the water outlet end of the water suction pipe is connected with a water storage tank, the water storage tank is communicated with the water outlet pipe downstream of the second control valve through a drainage pipe, a third control valve is arranged on the water suction pipe, and a fourth control valve is arranged on the drainage pipe.

[0006] In a further improved scheme of the utility model, an air inlet pipe which is communicated with the water inlet pipe is arranged between the first control valve and the cast welding die, and a fifth control valve is arranged on the air inlet pipe.

[0007] The utility model discloses further improve scheme is, one end of the water pumping pipe is located in the water storage tank, the upper end of water storage tank is equipped with the negative pressure interface that is connected with negative pressure generator through the connecting pipe, be equipped with the sixth control valve on the connecting pipe.

[0008] The utility model discloses further improve scheme is, the air inlet of air inlet pipe is equipped with the filter cap of preventing block.

[0009] The utility model discloses further improve scheme is, the first control valve, second control valve, third control valve, fourth control valve, fifth control valve and sixth control valve are solenoid valve.

[0010] The utility model discloses the beneficial effect lies in:

[0011] The utility model discloses through setting up water pumping pipe can effectively discharge the residual water in cast welding mould cooling water channel, avoids its in subsequent heating and prolongs the mould preheating time, effectively improves the uniformity of mould temperature.

[0012] The utility model discloses setting up negative pressure interface on water storage tank, is connected negative pressure generator through connecting pipe, and has the sixth control valve. Negative pressure can produce suction, help and draw residual water into water storage tank, especially in complex cooling water channel, utilize negative pressure and enhance the drainage effect, improve the drainage effect.

[0013] The utility model discloses setting up the filter cap of preventing block in the air inlet of air inlet pipe, can prevent dust or impurity in the working environment from entering the pipeline, avoids the blockage. ACCURACY OF DRAWINGS

[0014] Figure 1 It is the structural schematic drawing of the utility model.

[0015] In the drawing, 1-cast welding mould, 2-water inlet pipe, 3-water outlet pipe, 4-first control valve, 5-second control valve, 6-water pumping pipe, 7-water storage tank, 8-drain pipe, 9-fourth control valve, 10-air inlet pipe, 11-fifth control valve, 12-third control valve, 13-connecting pipe, 14-sixth control valve, 15-filter cap of preventing block, 16-converging row. SPECIFIC IMPLEMENTATION

[0016] The utility model discloses further illustrate in combination with the attached drawing and specific embodiment.

[0017] Example 1: combine Figure 1It can be known that a cast-welding mold drainage structure comprises a cast-welding mold 1 provided with a cooling channel, the cooling channel forms a cooling water circulation path through a circulating cooling system, the circulating cooling system comprises a water inlet pipe 2 and a water outlet pipe 3 which are respectively communicated with a water inlet end and a water outlet end of the cooling channel, the water inlet pipe 2 and the water outlet pipe 3 are respectively provided with a first control valve 4 and a second control valve 5, a water pumping pipe 6 which is communicated with the water outlet pipe 3 is arranged between the cast-welding mold 1 and the second control valve 5, a water outlet end of the water pumping pipe 6 is connected with a water storage tank 7, the water storage tank 7 is communicated with the water outlet pipe 3 downstream of the second control valve 5 through a drainage pipe 8, a third control valve 12 is arranged on the water pumping pipe 6, and a fourth control valve 9 is arranged on the drainage pipe 8.

[0018] A gas inlet pipe 10 which is communicated with the water inlet pipe 2 is arranged between the first control valve 4 and the cast-welding mold 1, and a fifth control valve 11 is arranged on the gas inlet pipe 10. The balance pressure of the gas inlet pipe 10 is arranged to let air enter and cooperate with the negative pressure generator to promote drainage.

[0019] One end of the water pumping pipe 6 is located inside the water storage tank 7, an upper end of the water storage tank 7 is provided with a negative pressure interface which is connected with a negative pressure generator through a connecting pipe 13, and a sixth control valve 14 is arranged on the connecting pipe 13. Preferably, the negative pressure generator is a rotary vane vacuum pump. The vacuum pump runs to form a negative pressure environment in the water storage tank 7, and residual water in the cooling channel 1 is sucked into the water storage tank 7 through the water pumping pipe 6 under the action of pressure difference.

[0020] An anti-blocking filter cap 15 is arranged on a gas inlet end of the gas inlet pipe 10. Preferably, the anti-blocking filter cap 15 comprises a fixed pipe cap which is fixed on one end of the gas inlet pipe 10, and a 100-mesh stainless steel filter screen is arranged in the fixed pipe cap.

[0021] The first control valve 4, the second control valve 5, the third control valve 12, the fourth control valve 9, the fifth control valve 11 and the sixth control valve 14 are all solenoid valves. All the control valves are solenoid valves, the opening and closing time of each valve can be accurately adjusted, and the efficiency is improved. The solenoid valve has fast response speed, which is helpful to coordinate the whole drainage process and ensure that each step is correctly executed in sequence.

[0022] Preferably, the circulating cooling system further comprises a circulating cooling pool and a circulating pump, a water inlet end of the circulating pump is connected with the circulating cooling pool, a water outlet end of the circulating pump is connected with the water inlet end of the water inlet pipe 2, the water outlet end of the water inlet pipe 2 is connected with the water inlet end of the cooling channel, the water outlet end of the cooling channel is connected with the water inlet end of the water outlet pipe 3, and the water outlet end of the water outlet pipe 3 is connected with the circulating cooling pool. Preferably, the cast-welding mold 1 is located above the circulating cooling pool, and the water in the water outlet pipe 3 can flow into the circulating cooling pool by gravity.

[0023] The working principle of the cast-welding mold drainage structure is as follows:

[0024] In the normal cooling stage, the first control valve 4 and the second control valve 5 remain open, the cooling water flows through the mold cooling channel from the water inlet pipe 2 and returns to the circulating system through the water outlet pipe 3, at this time, the third to sixth control valves are closed, and the system only performs the basic heat dissipation function.

[0025] When water needs to be drained, the system enters the forced drainage stage: first, the first and second control valves (4, 5) of the main circuit are closed to cut off the conventional cooling path; then the third control valve 12, the fifth control valve 11 and the sixth control valve 14 are opened, the negative pressure generator is started, and the negative pressure environment of the water storage tank 7 is used to make the residual water in the mold enter the water storage tank 7 through the water pump 6 of the water outlet pipe 3. After the extraction is completed, the negative pressure generator and the sixth control valve 14 are closed, the fourth control valve 9 is opened, and the extracted water is returned to the water outlet pipe downstream into the circulating system through the drain pipe 8.

[0026] In the description of the utility model, it is understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the utility model, any equivalent structure or equivalent process conversion made by using the contents of the utility model specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the utility model.

Claims

1. A drainage structure for a casting and welding mold, comprising a casting and welding mold (1) with a cooling channel, wherein the cooling channel forms a cooling water circulation path through a circulating cooling system, the circulating cooling system comprising an inlet pipe (2) and an outlet pipe (3) respectively connected to the inlet end and the outlet end of the cooling channel, characterized in that: The inlet pipe (2) and outlet pipe (3) are respectively equipped with a first control valve (4) and a second control valve (5). A pumping pipe (6) connected to the outlet pipe (3) is provided between the casting and welding mold (1) and the second control valve (5). The outlet end of the pumping pipe (6) is connected to the water storage tank (7). The water storage tank (7) is connected to the outlet pipe (3) downstream of the second control valve (5) through the drain pipe (8). A third control valve (12) is provided on the pumping pipe (6), and a fourth control valve (9) is provided on the drain pipe (8).

2. The drainage structure for a casting and welding mold according to claim 1, characterized in that: An air inlet pipe (10) connected to the water inlet pipe (2) is provided between the first control valve (4) and the casting mold (1), and a fifth control valve (11) is provided on the air inlet pipe (10).

3. The drainage structure for a casting and welding mold according to claim 2, characterized in that: One end of the pumping pipe (6) is located inside the water storage tank (7). The upper end of the water storage tank (7) is provided with a negative pressure interface that is connected to the negative pressure generator through a connecting pipe (13). A sixth control valve (14) is provided on the connecting pipe (13).

4. The drainage structure for a casting and welding mold according to claim 3, characterized in that: The air intake end of the air intake pipe (10) is provided with an anti-clogging filter cap (15).

5. The drainage structure for a casting and welding mold according to claim 3, characterized in that: The first control valve (4), the second control valve (5), the third control valve (12), the fourth control valve (9), the fifth control valve (11), and the sixth control valve (14) are all solenoid valves.

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