Cooling device of stamping die

Abstract

The utility model relates to the technical field of die cooling, in particular to a cooling device of a stamping die, which comprises a water storage tank, a support table, a lower die holder, a heat gathering structure and two circulating cooling mechanisms. The circulating cooling mechanism comprises a first water pipe, a water pumping device, a second water pipe, a control valve, a third water pipe and a first water tank, the two ends of the first water pipe communicate with one water inlet and outlet of the water storage pond and one water inlet and outlet of the water pumping device correspondingly, and the two ends of the second water pipe communicate with the other water inlet and outlet of the water pumping device and one port of the control valve correspondingly. Two ends of the third water pipe are respectively communicated with the other port of the control valve and the first water tank. The first water tanks of the two circulating cooling mechanisms are used for loading the overheated cooling liquid pumped out of the water storage pond in turn, supplying the cooling liquid into the water storage pond in turn and cooling after being unloaded in turn, replacement and cooling of the cooling liquid are facilitated, the heat gathering structure concentrates heat to the cooling liquid in the water storage pond to transfer heat, and the cooling efficiency is improved. And the cooling efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of mold cooling technology, and in particular to a cooling device for stamping dies. Background Technology

[0002] Stamping dies are special process equipment used in cold stamping to process materials into parts (or semi-finished products). Because stamping dies operate at high speeds, they generate high heat after high-speed friction, thus requiring cooling to reduce their temperature.

[0003] Among existing patents, Chinese patent application number 202321899082.9 discloses a cooling device for automotive stamping dies. This device includes a die base and a cooling circulation mechanism. The die base has a cooling chamber inside, and a first heat dissipation fin group is arranged on its side. The cooling circulation mechanism includes a water-cooled box, with a second heat dissipation fin group installed on its outer wall. An inlet pipe and a return pipe are installed on one side of the water-cooled box. A pressure pump is installed on the inlet pipe, and a loop pipe is connected to the end of the inlet pipe, located inside the first heat dissipation fin group. This device can circulate and cool the cooling chamber of the die base with water through the cooling circulation mechanism, thereby ensuring that the temperature of the die base does not become too high. However, because the cooling water is constantly circulating, its temperature gradually increases over time, causing the cooling effect on the stamping die to decrease, or even fail to achieve the purpose of cooling the stamping die.

[0004] Therefore, the defects are very obvious, and a solution is urgently needed. Utility Model Content

[0005] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide a cooling device for stamping dies.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A cooling device for a stamping die includes a water storage tank, a support platform disposed within the water storage tank, a lower die base covering the top port of the water storage tank, a heat-gathering structure disposed on the bottom of the support platform and extending into the coolant in the water storage tank, and two circulating cooling mechanisms respectively disposed at both ends of the water storage tank; the platform surface of the support platform is in contact with the bottom surface of the lower die base; the circulating cooling mechanism includes a first water pipe, a pump, a second water pipe, a control valve, a third water pipe, and a first water tank, the two ends of the first water pipe are respectively connected to an inlet and outlet of the water storage tank and an inlet and outlet of the pump, the two ends of the second water pipe are respectively connected to another inlet and outlet of the pump and a port of the control valve, and the two ends of the third water pipe are respectively connected to another port of the control valve and the first water tank.

[0008] Furthermore, the circulating cooling mechanism also includes a fourth water pipe and a second water tank, and the control valve is a switching valve. The two ends of the fourth water pipe are respectively connected to the third port of the control valve and the second water tank.

[0009] Furthermore, a temperature probe is installed inside the water storage tank to detect the temperature of the coolant inside the tank.

[0010] Furthermore, the temperature probe is electrically connected to the controller, and the water pump is electrically connected to the controller.

[0011] Furthermore, the water pump includes a water tank, a pumping wheel rotatably disposed inside the water tank, and a rotary drive installed outside the water tank for driving the pumping wheel to rotate. The two side ports of the water tank are respectively connected to the first water pipe and the second water pipe.

[0012] Furthermore, the bottom surface of the lower mold base is recessed with a cavity, and the platform of the support table extends into the cavity.

[0013] Furthermore, the heat-gathering structure includes multiple conical blocks disposed on the bottom of the support platform. The multiple conical blocks are arranged in a rectangular array, with the tips of the conical blocks facing the water storage tank and extending into the coolant in the water storage tank.

[0014] Furthermore, the legs of the support platform are provided with positioning holes, and the bottom wall of the water storage tank is provided with positioning posts that are inserted into the positioning holes.

[0015] Furthermore, multiple heat dissipation fins are provided on the outer surfaces of both the first and second water tanks.

[0016] Furthermore, the bottom of the water storage tank is equipped with anti-slip feet.

[0017] The beneficial effects of this utility model are as follows: In practical application, initially, the water storage tank contains coolant. The two circulating cooling mechanisms are referred to as the first circulating cooling mechanism and the second circulating cooling mechanism, respectively. The first water tank of the first circulating cooling mechanism contains coolant, while the first water tank of the second circulating cooling mechanism is empty. The heat generated by the stamping die during operation is transferred to the support platform via the lower die base. The heat from the support platform is transferred to the coolant in the water storage tank via the heat-gathering structure. The coolant can cool and reduce the temperature of the heat-gathering structure, the support platform, the lower die base, and the stamping die. When the coolant in the water storage tank becomes overheated, the control valve and pump of the second circulating cooling mechanism are activated. The pump draws the coolant from the water storage tank into the first water tank of the second circulating cooling mechanism. The control valve and pump of the first circulating cooling mechanism are activated. The water pump draws the coolant from the first water tank of the first circulating cooling mechanism to the storage tank to replace the coolant in the storage tank, ensuring the cooling effect. The coolant stored in the first water tank of the second circulating cooling mechanism can be cooled down naturally. The first water tank of the first circulating cooling mechanism is cooled down under no-load conditions, so that its own temperature drops to room temperature, which is beneficial for cooling the coolant drawn from the storage tank and improving the efficiency of cooling the coolant. When the coolant in the storage tank becomes overheated again, the control valve and water pump of the first circulating cooling mechanism are activated. The water pump draws the coolant in the storage tank to the first water tank of the first circulating cooling mechanism. The control valve and water pump of the second circulating cooling mechanism are activated. The water pump of the second circulating cooling mechanism draws the coolant in its first water tank to the storage tank. This invention utilizes two circulating cooling mechanisms: the first water tank alternately loads the superheated coolant extracted from the storage tank, alternately supplies coolant to the storage tank, and alternately cools down when unloaded. This facilitates coolant replacement and cooling, and the heat-concentrating structure concentrates heat to transfer heat to the coolant in the storage tank, greatly improving cooling efficiency. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 This is an exploded structural diagram of the present invention.

[0020] Figure 3 This is a cross-sectional view of the water storage tank, support platform, lower mold base, and heat-gathering structure of this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Water storage tank; 2. Support platform; 3. Lower mold base; 4. Heat-concentrating structure; 5. Circulating cooling mechanism; 6. First water pipe; 7. Water pump; 8. Second water pipe; 9. Control valve; 10. Third water pipe; 11. First water tank; 12. Fourth water pipe; 13. Second water tank; 14. Controller; 15. Pumping tank; 16. Pumping wheel; 17. Rotary drive; 18. Cavity; 19. Conical block; 20. Heat sink; 21. Anti-slip feet. Detailed Implementation

[0023] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention.

[0024] like Figures 1 to 3 As shown, the present invention provides a cooling device for a stamping die, which includes a water storage tank 1, a support platform 2 disposed in the water storage tank 1, a lower die base 3 covering the top port of the water storage tank 1, a heat-gathering structure 4 disposed on the bottom of the support platform 2 and extending into the coolant in the water storage tank 1, and two circulating cooling mechanisms 5 respectively disposed at both ends of the water storage tank 1; the platform surface of the support platform 2 is in contact with the bottom surface of the lower die base 3; the circulating cooling mechanism 5 includes a first water pipe 6, a water pump 7, a second water pipe 8, a control valve 9, a third water pipe 10, and a first water tank 11. The two ends of the first water pipe 6 are respectively connected to one inlet and outlet of the water storage tank 1 and one inlet and outlet of the water pump 7, the two ends of the second water pipe 8 are respectively connected to the other inlet and outlet of the water pump 7 and one port of the control valve 9, and the two ends of the third water pipe 10 are respectively connected to the other port of the control valve 9 and the first water tank 11.

[0025] In practical applications, initially, the water storage tank 1 contains coolant. The two circulating cooling mechanisms 5 are referred to as the first circulating cooling mechanism 5 and the second circulating cooling mechanism 5, respectively. The first water tank 11 of the first circulating cooling mechanism 5 contains coolant, while the first water tank 11 of the second circulating cooling mechanism 5 is empty. The heat generated by the stamping die during operation is transferred to the support platform 2 via the lower die base 3. The heat from the support platform 2 is transferred to the coolant in the water storage tank 1 via the heat-collecting structure 4. The coolant can cool and reduce the temperature of the heat-collecting structure 4, the support platform 2, the lower die base 3, and the stamping die. When the coolant in the water storage tank 1 becomes overheated, the control valve 9 and the pump 7 of the second circulating cooling mechanism 5 are activated. The pump 7 draws the coolant from the water storage tank 1 into the first water tank 11 of the second circulating cooling mechanism 5. The control valve 9 and the pump 7 of the first circulating cooling mechanism 5 are activated, and the pump 7 draws the coolant from the first circulating cooling mechanism 5 into the first water tank 11 of the second circulating cooling mechanism 5. The coolant in the first water tank 11 of the second circulating cooling mechanism 5 is pumped into the water storage tank 1 to replace the coolant in the water storage tank 1, ensuring the cooling effect. The coolant stored in the first water tank 11 of the second circulating cooling mechanism 5 can be cooled down naturally. The first water tank 11 of the first circulating cooling mechanism 5 is cooled down under no-load, so that the temperature of the first water tank 11 drops to room temperature, which is beneficial for cooling the coolant pumped from the water storage tank 1 and improving the efficiency of cooling the coolant. When the coolant in the water storage tank 1 becomes overheated again, the control valve 9 and the pump 7 of the first circulating cooling mechanism 5 are activated. The pump 7 pumps the coolant in the water storage tank 1 into the first water tank 11 of the first circulating cooling mechanism 5. The control valve 9 and the pump 7 of the second circulating cooling mechanism 5 are activated. The pump 7 of the second circulating cooling mechanism 5 pumps the coolant in its first water tank 11 into the water storage tank 1. This utility model utilizes two circulating cooling mechanisms 5 to alternately load the superheated coolant extracted from the water storage tank 1 into the water storage tank 1, alternately supply coolant to the water storage tank 1, and alternately cool down after being unloaded. This facilitates the replacement and cooling of the coolant, and the heat-concentrating structure 4 concentrates the heat to transfer heat to the coolant in the water storage tank 1, greatly improving the cooling efficiency.

[0026] In this embodiment, the circulating cooling mechanism 5 also includes a fourth water pipe 12 and a second water tank 13. The control valve 9 is a switching valve, and the two ends of the fourth water pipe 12 are respectively connected to the third port of the control valve 9 and the second water tank 13.

[0027] Initially, the first water tank 11 of the first circulating cooling mechanism 5 and the second water tank 13 of the second circulating cooling mechanism 5 contain coolant. Both the second water tank 11 and the second water tank 13 of the first circulating cooling mechanism 5 are empty. The water storage tank 1 contains coolant. In practical applications, the coolant in the water storage tank 1 cools the stamping die on the lower die base 3. When the coolant in the water storage tank 1 becomes overheated, the control valve 9 of the first circulating cooling mechanism 5 switches to connect with the empty second water tank 13, and the pump 7 starts, drawing the coolant from the water storage tank 1 to the first circulating cooling mechanism. Inside the second water tank 13 of mechanism 5, the control valve 9 of the second circulating cooling mechanism 5 is switched to connect with the fully loaded second water tank 13. The pump 7 is started, and the pump 7 pumps the coolant in the second water tank 13 into the storage tank 1, so that the second water tank 13 is unloaded and cools down on its own. The four water tanks of the two circulating cooling mechanisms 5 take turns replacing the coolant in the storage tank 1. The cooling efficiency of the coolant is high, the replacement of the coolant is convenient, and the cooling efficiency is improved. Moreover, two of the four water tanks of the two circulating cooling mechanisms 5 always have coolant, while the other two water tanks are unloaded and cooling down, which prolongs the cooling time of the coolant and the water tanks.

[0028] Initially, the water storage tank 1 contains coolant, the first water tank 11 of the first circulating cooling mechanism 5 contains coolant, and the second water tank 13 of the first circulating cooling mechanism 5 is empty. Both the first water tank 11 and the second water tank 13 of the second circulating cooling mechanism 5 are empty. In practical applications, the coolant in the water storage tank 1 cools the stamping die on the lower die base 3. When the coolant in the water storage tank 1 becomes overheated, the control valve 9 of the second circulating cooling mechanism 5 switches to connect with either the first water tank 11 or the second water tank 13, and the pump 7 starts, drawing the coolant from the water storage tank 1 to the first water tank 13. Inside tank 11 or the second water tank 13, the control valve 9 of the first circulating cooling mechanism 5 is switched to connect with the first water tank 11, and the pump 7 is started. The pump 7 pumps the coolant in the first water tank 11 into the water storage tank 1. The first water tank 11 and the second water tank 13 of the two circulating cooling mechanisms 5 take turns replacing the coolant in the water storage tank 1. The cooling efficiency of the coolant is high, and the replacement of the coolant is convenient, which improves the cooling efficiency. Moreover, one of the four water tanks of the two circulating cooling mechanisms 5 is always kept with coolant, while the other three water tanks are cooled without load, which is beneficial to the cooling of the coolant and the water tanks themselves.

[0029] In this embodiment, a temperature probe is installed in the water storage tank 1 to detect the temperature of the coolant in the water storage tank 1. In practical applications, the temperature probe monitors the temperature of the coolant in the water storage tank 1 in real time. When the temperature of the coolant in the water storage tank 1 exceeds the preset temperature value, the coolant in the water storage tank 1 is replaced to ensure that the coolant in the water storage tank 1 can properly cool and reduce the temperature of the stamping die.

[0030] In this embodiment, the temperature probe is electrically connected to the controller 14, and the control valve 9 and the water pump 7 are electrically connected to the controller 14. The controller 14 can display the temperature monitored by the temperature probe and control the corresponding control valve 9 and water pump 7 to work based on the temperature monitoring results of the temperature probe.

[0031] In this embodiment, the water pump 7 includes a water tank 15, a pumping wheel 16 rotatably disposed within the water tank 15, and a rotary driver 17 mounted outside the water tank 15 for driving the pumping wheel 16 to rotate. The two side ports of the water tank 15 are respectively connected to the first water pipe 6 and the second water pipe 8. Specifically, the rotary driver 17 can be a motor. In practical applications, the rotary driver 17 drives the pumping wheel 16 to rotate, and the rotating pumping wheel 16 will pump the coolant out of the water storage tank 1 or pump the coolant in the water tank into the water storage tank 1.

[0032] Of course, a gear pump can also be used for pump 7.

[0033] In this embodiment, the bottom surface of the lower mold base 3 is recessed with a cavity 18, and the platform of the support platform 2 extends into the cavity 18, making the structure of the support platform 2 and the lower mold base 3 compact and more closely fitted, increasing the contact area, thereby increasing the heat transfer area for cooling and temperature reduction, and the positional accuracy between the lower mold base 3 and the support platform 2 is high, and the working stability of both is good.

[0034] In this embodiment, the heat-gathering structure 4 includes multiple conical blocks 19 disposed on the bottom of the support platform 2. The multiple conical blocks 19 are arranged in a rectangular array, with the tips of the conical blocks 19 facing the water storage tank 1 and extending into the coolant in the water storage tank 1. This structural design increases the contact area between the heat-gathering structure 4 and the coolant, which is beneficial to improving the cooling efficiency.

[0035] In this embodiment, the legs of the support platform 2 are provided with positioning holes, and the bottom wall of the water storage tank 1 is provided with positioning posts that are inserted into the positioning holes. This structural design ensures that the support platform 2 is placed in the water storage tank 1 with high positioning accuracy and good stability.

[0036] In this embodiment, multiple heat dissipation fins 20 are provided on the outer surfaces of both the first water tank 11 and the second water tank 13. The heat dissipation fins 20 can quickly dissipate heat and cool the first water tank 11 and the second water tank 13.

[0037] In this embodiment, the bottom of the water storage tank 1 is equipped with anti-slip feet 21. The anti-slip feet 21 provide good protection and improve the working stability of the cooling device. Specifically, the anti-slip feet 21 can be supported by heat-insulating materials to provide heat insulation.

[0038] All technical features in this embodiment can be freely combined according to actual needs.

[0039] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A cooling device for a stamping die, characterized in that: The system includes a water storage tank (1), a support platform (2) installed inside the water storage tank (1), a lower mold base (3) covering the top end of the water storage tank (1), a heat-gathering structure (4) installed on the bottom of the support platform (2) and extending into the coolant in the water storage tank (1), and two circulating cooling mechanisms (5) respectively installed at both ends of the water storage tank (1); the platform surface of the support platform (2) is in contact with the bottom surface of the lower mold base (3); the circulating cooling mechanism (5) includes a first water pipe (6) and a water pump. (7), second water pipe (8), control valve (9), third water pipe (10) and first water tank (11). The two ends of the first water pipe (6) are connected to one inlet and outlet of the water storage tank (1) and one inlet and outlet of the pump (7), respectively. The two ends of the second water pipe (8) are connected to the other inlet and outlet of the pump (7) and one port of the control valve (9), respectively. The two ends of the third water pipe (10) are connected to the other port of the control valve (9) and the first water tank (11), respectively.

2. The cooling device for a stamping die according to claim 1, characterized in that: The circulating cooling mechanism (5) also includes a fourth water pipe (12) and a second water tank (13). The control valve (9) is a switching valve. The two ends of the fourth water pipe (12) are connected to the third port of the control valve (9) and the second water tank (13), respectively.

3. The cooling device for a stamping die according to claim 1, characterized in that: A temperature probe is installed inside the water storage tank (1) to detect the temperature of the coolant inside the water storage tank (1).

4. The cooling device for a stamping die according to claim 3, characterized in that: The temperature probe is electrically connected to the controller (14), and the water pump (7) is electrically connected to the controller (14).

5. A cooling device for a stamping die according to claim 1, characterized in that: The water pump (7) includes a water tank (15), a water pump wheel (16) rotatably disposed in the water tank (15), and a rotary drive (17) installed outside the water tank (15) for driving the water pump wheel (16) to rotate. The two side ports of the water tank (15) are respectively connected to the first water pipe (6) and the second water pipe (8).

6. A cooling device for a stamping die according to claim 1, characterized in that: The bottom surface of the lower mold base (3) is recessed with a cavity (18), and the platform of the support table (2) extends into the cavity (18).

7. A cooling device for a stamping die according to claim 1, characterized in that: The heat-gathering structure (4) includes multiple conical blocks (19) disposed on the bottom of the support platform (2). The multiple conical blocks (19) are arranged in a rectangular array, with the tips of the conical blocks (19) facing the water storage tank (1) and extending into the coolant in the water storage tank (1).

8. A cooling device for a stamping die according to claim 1, characterized in that: The legs of the support platform (2) are provided with positioning holes, and the bottom wall of the water storage tank (1) is provided with positioning columns, which are inserted into the positioning holes.

9. A cooling device for a stamping die according to claim 2, characterized in that: Multiple heat sinks (20) are provided on the outer surfaces of the first water tank (11) and the second water tank (13).

10. A cooling device for a stamping die according to claim 1, characterized in that: The bottom of the water storage tank (1) is equipped with anti-slip feet (21).

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