Automobile covering part hot stamping forming equipment and method

Abstract

The invention is suitable for the technical field of automobile part machining, and provides an automobile covering part hot stamping forming device and method. Four sets of limiting frames are installed in the cooling tank, and a mold is placed at the upper ends of the four sets of limiting frames. According to the hot stamping forming equipment and method for the automobile covering part, the mold is placed in the cooling tank, water is injected into the cooling tank, the cooling purpose is achieved through heat exchange between the water and the mold, the driving pump and the backflow tank are arranged so that water flow can make full contact with air, and the cooling effect is improved. According to the mold cooling device, warm water is cooled quickly, water in the cooling tank flows under the attraction of the driving pump, and therefore it is guaranteed that the mold is evenly cooled, the mold can be replaced through cooperation of the electric air cylinder and the hanging plate, and through the arrangement, replacement of the mold can be easier and more labor-saving, and safety is high.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile parts processing, and in particular relates to a hot stamping forming device and method for automobile covering parts. Background Art

[0002] Hot stamping of automotive cover parts is a part processing method. The workpiece is first heated to a certain temperature, and then stamped and quenched in the corresponding mold with a stamping machine to obtain the desired shape and simultaneously realize the phase change of the metal material. After hot stamping, the workpiece is in a high temperature state. Therefore, cooling equipment is also required during the hot stamping process to cool the workpiece after processing at any time.

[0003] At present, hot stamping is generally cooled by flushing water on the outside of the mold. Due to the heat exchange between the cooling water and the mold, the temperature of the cooling water will increase over a long period of time, making it difficult to ensure subsequent rapid cooling and heat dissipation. Therefore, the cooling water needs to be replaced frequently. Some equipment also uses circulating cooling, but the cooling system is cumbersome and complicated, resulting in excessively high costs. In addition, since the parts of automobile covers are large, the required mold volume is also relatively large. Due to the diversity of automobile covers, the stamping mold needs to be replaced frequently. Currently, the replacement of the mold also requires the cooperation of multiple people to lift it up and down, which is laborious and dangerous. Summary of the invention

[0004] The present invention provides a hot stamping forming device and method for automobile covering parts, aiming to solve the problems that the cooling mechanism of the current hot and cold stamping dies cannot quickly and simply cool water, and the hot stamping dies are laborious to replace.

[0005] The present invention is implemented in this way: a hot stamping forming device for automobile covering parts comprises a cooling tank; a limiting frame is installed inside the cooling tank, and the limiting frame is provided with four groups, and a mold is placed on the upper end of the four groups of limiting frames; a fixing frame is installed above the left end of the cooling tank; a stamping device is installed on the right side of the fixing frame, and the stamping device is located directly above the mold; a driving pump is installed at the left end of the cooling tank; a water delivery port of the driving pump is connected to a water pipe, and the water pipe is installed on the outer side wall of the cooling tank; the other end of the water pipe is installed on the side of the fixing frame, and the A reflux groove is provided inside the fixed frame, and a guide plate is installed on the inner wall of the reflux groove. The guide plates are installed obliquely and symmetrically staggered and fixed with each other. A water channel is provided on the side wall of the cooling groove, and a water outlet communicated with the water channel is provided on the inner wall of the cooling groove, and the water outlet is located on the right side of the cooling groove. A groove is provided at the right end of the cooling groove, and an electric cylinder is installed in the groove. A turntable is installed on the top of the output shaft of the electric cylinder, and a limiting sleeve is installed on the top of the turntable. A hanging plate is slidably installed on the inner side of the limiting sleeve, and a hanger is installed on the outer wall of the mold.

[0006] Preferably, an opening is provided at the top of the fixing frame, and a mounting frame is placed at the opening. A fan is installed inside the mounting frame, and an air intake groove is installed at the lower side of the fixing frame.

[0007] Preferably, four groups of limiting frames are provided. The four groups of limiting frames are distributed at the four corners inside the cooling tank. The four groups of limiting frames are pairwise installed at the upper ends of two groups of positioning plates. A sliding groove is opened inside the bottom end of the cooling tank, and a sliding block is slidably installed in the sliding groove. A bidirectional screw rod is rotatably installed in the sliding groove of the cooling tank. Thread grooves adapted to the threads on the surface of the bidirectional screw rod are provided on the surfaces of the two sliding blocks. The two sliding blocks are symmetrically distributed on the surface of the bidirectional screw rod. A motor is installed at the lower left side of the cooling tank, and the output shaft of the motor is connected to the shaft end of the bidirectional screw rod.

[0008] Preferably, the bidirectional screw rod and the sliding block are both treated with rust and corrosion prevention.

[0009] Preferably, a plug board is installed at the bottom of the limiting frame, and positioning slots adapted to the plug board are equidistantly provided on the surface of the positioning plate.

[0010] Preferably, two groups of supporting wheels are symmetrically installed at the bottom of the positioning plate. The supporting wheels are rotatably installed and are in contact with the inner bottom end of the cooling tank.

[0011] Preferably, a filter screen is installed in the cooling tank, and the filter screen is located outside the water inlet of the driving pump.

[0012] Preferably, two groups of water connection ports are installed on the outer side wall of the cooling tank, and a liquid inlet pipe and a liquid discharge pipe are respectively connected to the outside of the water connection ports.

[0013] A control method for a hot stamping forming device for automotive body panels is also disclosed, including the following steps;

[0014] S1: Place the mold in the cooling tank and inject water into the cooling tank. Through heat exchange between the water and the mold, the purpose of rapid cooling is achieved. The water in the cooling tank is pumped into the top of the fixing frame through the driving pump and transmitted through the water pipe, and then flows downward from the return groove in the fixing frame, so that the water falls from a high place. During the falling process, the water exchanges heat with the air. When the water falls, it flows in an S shape under the action of the diversion plate, and the fan can be started. The fan inhales air from the air intake groove and makes it flow upward and blow towards the surface of the water flow. Through this setting, the cooling effect of the water flow can be further improved by increasing the air flow rate. Through this setting, the contact time and contact area between the water and the air can be increased, so as to rapidly cool the warm water;

[0015] S2: When it is necessary to replace the mold to stamp different parts, the electric cylinder can be activated to lower the hanging plate, and then the hanging plate can be horizontally pushed to make it snap into the hanging frame. At this time, the electric cylinder rises to push the mold out of the cooling tank upward. After that, the hanging plate can be rotated to turn the mold to the outside of the cooling tank and put it down. Then, the mold to be replaced can be put into the cooling tank in the same way;

[0016] S3: Start the motor to drive the bidirectional screw to rotate, and the slider slides horizontally under the action of the threads on the surface of the bidirectional screw. Through this setting, the horizontal positions of the positioning plate and the limiting frame can be adjusted. And by inserting the insertion plate into different positions on the surface of the positioning plate, the horizontal lateral and longitudinal positions of the limiting frame can be adjusted.

[0017] Compared with the prior art, the embodiments of the present application mainly have the following beneficial effects:

[0018] This hot stamping forming equipment places the mold in the cooling tank and injects water into the cooling tank. The cooling purpose is achieved through the heat exchange between the water and the mold. By setting the driving pump and the return tank, the water flow is fully contacted with the air to quickly cool the warm water. And under the suction of the driving pump, the water in the cooling tank flows, so as to ensure uniform cooling of the mold. By setting the electric cylinder and the hanging plate in cooperation, the mold can be replaced. Through this setting, the replacement of the mold is more labor-saving and has higher safety;

[0019] By setting a fan, when the water is flowing in the return tank, the fan can be started. The fan inhales air from the air intake groove and makes it flow upward and blow to the surface of the water flow. Through this setting, the cooling effect of the water flow can be further improved by increasing the air flow rate. By setting a bidirectional screw and a slider, the slider is sleeved outside the bidirectional screw in a threaded connection manner. The motor can be started to drive the bidirectional screw to rotate, and the slider slides horizontally under the action of the threads on the surface of the bidirectional screw. Through this setting, the horizontal positions of the positioning plate and the limiting frame can be adjusted, so as to facilitate the limiting and fixing of molds of different lengths. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is the three-dimensional structural schematic diagram of the present invention;

[0021] Figure 2 is the front sectional structural schematic diagram of the present invention;

[0022] Figure 3 is the top sectional structural schematic diagram of the present invention;

[0023] Figure 4 is the side sectional structural schematic diagram of the present invention;

[0024] Figure 5 is of the present invention Figure 2Schematic enlarged view of the structure at A in the [specific context, not clear from the given text, could be a Chinese name or a specific part name];

[0025] In the figure: 1. Cooling tank; 2. Limit frame; 3. Mold; 4. Fixed frame; 5. Stamping equipment; 6. Driving pump; 7. Water pipe; 8. Return tank; 9. Drainage plate; 10. Water channel; 11. Electric cylinder; 12. Turntable; 13. Limit sleeve; 14. Hanging plate; 15. Hanging bracket; 16. Mounting bracket; 17. Fan; 18. Air intake slot; 19. Positioning plate; 20. Slide block; 21. Bi-directional screw; 22. Motor; 23. Plug board; 24. Support wheel; 25. Filter screen; 26. Water inlet. Detailed implementation manner

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs; the terms used in the description of this application in the specification are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of this application or the above drawings are used to distinguish different objects and not to describe a specific order.

[0027] Reference to "embodiment" in this context means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of this application. The phrase may not necessarily refer to the same embodiment when it appears in various places in the specification, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0028] An embodiment of the present invention provides a hot stamping forming device for automotive body panels, as Figures 1-5As shown, it includes a cooling tank 1, a limiting frame 2 is installed inside the cooling tank 1, and four groups of limiting frames 2 are provided. A mold 3 is placed on the upper end of the four groups of limiting frames 2, a fixing frame 4 is installed above the left end of the cooling tank 1, and a stamping device 5 is installed on the right side of the fixing frame 4. The stamping device 5 is located directly above the mold 3. A driving pump 6 is installed at the left end of the inside of the cooling tank 1, and a water pipe 7 is connected to the water delivery port of the driving pump 6. The water pipe 7 is installed on the outer wall of the cooling tank 1, and the other end of the water pipe 7 is installed on the side of the fixing frame 4. A reflux groove 8 is opened inside the fixing frame 4, and a drainage plate 9 is installed on the inner wall of the reflux groove 8. The drainage plates 9 are installed obliquely and symmetrically staggered with each other. The cooling tank 1 is fixed, a water channel 10 is provided on the side wall of the cooling tank 1, a water outlet communicated with the water channel 10 is provided on the inner side wall of the cooling tank 1, and the water outlet is located on the right side of the cooling tank 1, a groove is provided on the right end of the cooling tank 1, and an electric cylinder 11 is installed in the groove, a turntable 12 is installed on the top of the output shaft of the electric cylinder 11, a limit sleeve 13 is installed on the top of the turntable 12, a hanging plate 14 is slidably installed on the inner side of the limit sleeve 13, and a hanger 15 is installed on the outer side wall of the mold 3. The hot stamping forming equipment achieves the purpose of rapid cooling by placing the mold 3 in the cooling tank 1 and injecting water into the cooling tank 1, and heat exchange is performed between water and the mold 3. After long-term stamping, the mold 3 exchanges heat with water, which will cause the water temperature to rise. At this time, the water in the cooling tank 1 is pumped into the cooling tank 1 by driving the pump 6 and transmitted to the top of the fixed frame 4 through the water pipe 7, and then flows downward from the reflux tank 8 in the fixed frame 4, so that the water falls from a high place, and contacts with the air for heat exchange during the falling process. When the water falls, it flows in an S shape under the action of the guide plate 9. This setting can increase the contact time and contact area between water and air, so that the warm water can be quickly cooled down. The cooled water flows back to the cooling tank 1 again through the water channel 10, and by opening the outlet of the water channel 10 on the right side of the cooling tank 1, this setting can make the water inlet of the cooling tank 1 It is far away from the water outlet position so that the water in the cooling tank 1 can flow, thereby ensuring uniform cooling of the mold 3. By providing an electric cylinder 11, when the mold 3 needs to be replaced to stamp different parts, the electric cylinder 11 can be started to lower the hanging plate 14, and the hanging plate 14 can be pushed horizontally to make it stuck in the hanger 15. At this time, the electric cylinder 11 rises and pushes the mold 3 upward from the cooling tank 1, and then the hanging plate 14 can be rotated to turn the mold 3 to the outside of the cooling tank 1 and put it down. Then, the mold 3 to be replaced is placed in the cooling tank 1 in the same way. This setting can make the replacement of the mold 3 easier and more labor-saving, and has higher safety.

[0029] The top of the fixing frame 4 is provided with an opening, and an installation frame 16 is placed at the opening. A fan 17 is installed inside the installation frame 16. An air intake groove 18 is installed at the lower side of the fixing frame 4. By providing the fan 17, when water flows in the reflux groove 8, the fan 17 can be started. The fan 17 sucks air from the air intake groove 18, makes it flow upward and blows it towards the surface of the water flow. Through this setting, the cooling effect of the water flow can be further improved by increasing the air flow rate.

[0030] Four groups of limit frames 2 are provided. The four groups of limit frames 2 are distributed at the four inner corners of the cooling tank 1. The four groups of limit frames 2 are pairwise installed at the upper ends of two groups of positioning plates 19. A sliding groove is opened inside the bottom end of the cooling tank 1, and a slider 20 is slidably installed in the sliding groove. A bidirectional screw 21 is rotatably installed in the sliding groove of the cooling tank 1. Thread grooves adapted to the threads on the surface of the bidirectional screw 21 are opened on the surfaces of the two sliders 20. The two sliders 20 are symmetrically distributed on the surface of the bidirectional screw 21. A motor 22 is installed at the lower left side of the cooling tank 1. The output shaft of the motor 22 is connected to the shaft end of the bidirectional screw 21. By providing the bidirectional screw 21 and the slider 20, the slider 20 is sleeved outside the bidirectional screw 21 in a threaded connection manner. The motor 22 can be started to drive the bidirectional screw 21 to rotate, and the slider 20 slides horizontally under the action of the threads on the surface of the bidirectional screw 21. Through this setting, the horizontal positions of the positioning plate 19 and the limit frame 2 can be adjusted, so as to facilitate the limit fixation of molds 3 of different lengths.

[0031] Both the bidirectional screw 21 and the slider 20 have been treated with rust prevention and corrosion prevention. Since both the bidirectional screw 21 and the slider 20 are immersed in water, through this setting, it can be avoided that their surfaces rust and affect normal transmission.

[0032] A plug board 23 is installed at the bottom of the limit frame 2. Positioning slots adapted to the plug board 23 are equidistantly opened on the surface of the positioning plate 19. By equidistantly opening positioning slots on the surface of the positioning plate 19, through this setting, the position of the limit frame 2 can be adjusted. When used in conjunction with the positioning plate 19, the horizontal and vertical positions of the limit frame 2 can be adjusted, thereby further improving the applicability of the device.

[0033] Two groups of support wheels 24 are symmetrically installed at the bottom of the positioning plate 19. The support wheels 24 are rotatably installed and are in contact with the inner bottom end of the cooling tank 1. By providing the support wheels 24, when the positioning plate 19 slides, the support wheels 24 assist in moving by rotation. When stamping processing is carried out, the mold 3 will receive a large impact force, and the support wheels 24 can bear the force. Through this setting, it can be avoided that the pressure is transmitted to the bidirectional screw 21 and causes bending deformation.

[0034] A filter screen 25 is installed in the cooling tank 1. The filter screen 25 is located outside the water inlet of the driving pump 6. By providing the filter screen 25, the filter screen 25 can prevent the debris of the parts during stamping from falling into the cooling tank 1 and being sucked by the driving pump 6, thereby ensuring the stable and effective operation of the driving pump 6.

[0035] Two water inlets 26 are installed on the outer side wall of the cooling tank 1, and a liquid inlet pipe and a liquid discharge pipe are respectively connected to the outside of the water inlets 26. By providing the water inlets 26, the liquid inlet pipe outside the water inlets 26 can inject water into the cooling tank 1, and the liquid discharge pipe can drain water. Through this setting, it is convenient to quickly adjust the water level in the cooling tank 1 and facilitate the cooling and heat dissipation of the molds 3 at different heights.

[0036] A control method for the above-mentioned hot stamping forming equipment for automotive body panels is also disclosed, including the following steps;

[0037] S1: Place the mold 3 in the cooling tank 1 and inject water into the cooling tank 1. Through heat exchange between the water and the mold 1, the purpose of rapid cooling is achieved. The water in the cooling tank 1 is pumped into the top of the fixing frame 4 through the driving pump 6 and transmitted through the water pipe 7, and then flows downward from the return tank 8 in the fixing frame 4, causing the water to fall from a high place. During the falling process, the water exchanges heat with the air. When the water falls, it flows in an S shape under the action of the diversion plate 9, and the fan 17 can be started. The fan 17 sucks air from the air inlet groove 18 and makes it flow upward and blow towards the surface of the water flow. Through this setting, the cooling effect of the water flow can be further improved by increasing the air flow rate. Through this setting, the contact time and contact area between the water and the air can be increased, so as to quickly cool the warm water;

[0038] S2: When it is necessary to replace the mold 3 to stamp different parts, the electric cylinder 11 can be started to lower the hanging plate 14, and the hanging plate 14 is horizontally pushed to be clamped into the hanging frame 15. At this time, the electric cylinder 11 rises to push the mold 3 out of the cooling tank 1 upward. Then, the hanging plate 14 can be rotated to turn the mold 3 to the outside of the cooling tank 1 and put it down. Then, the mold 3 to be replaced is put into the cooling tank 1 in the same way;

[0039] S3: Start the motor 22 to drive the bidirectional screw 21 to rotate, and the slider 20 slides horizontally under the action of the thread on the surface of the bidirectional screw 21. Through this setting, the horizontal positions of the positioning plate 19 and the limiting frame 2 can be adjusted, and the horizontal and longitudinal positions of the limiting frame 2 can be adjusted by inserting the plug board 23 into different positions on the surface of the positioning plate 19.

[0040] It should be noted that, for the foregoing embodiments, for the sake of simple description, they are all expressed as a series of action combinations. However, those skilled in the art should know that the present invention is not limited by the described action sequence, because according to the present invention, certain steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0041] In several embodiments provided by the present application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the above-mentioned unit division may have other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed coupling or communication connection between each other can be through some interfaces. The indirect coupling or communication connection between devices or units can be in the form of telecommunications or other forms.

[0042] The units described above as separate components may or may not be physically separated. The components displayed as units may or may not be physical units, that is, they can be located in one place, or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment. The above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting the protection scope of the invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art can still, without conflict and without creative work, combine, add or delete the features in the embodiments of the present invention according to the situation, or make other adjustments, so as to obtain different technical solutions that are essentially not divorced from the concept of the present invention. These technical solutions also belong to the scope of protection of the present invention.

Claims

1. A hot stamping forming equipment for automobile covering parts, characterized in that: The invention comprises a cooling trough (1): a limiting frame (2) is installed inside the cooling trough (1), and the limiting frame (2) is provided with four groups, and a mold (3) is placed on the upper end of the four groups of limiting frames (2); a fixing frame (4) is installed above the left end of the cooling trough (1); a punching device (5) is installed on the right side of the fixing frame (4); the punching device (5) is located directly above the mold (3); a driving pump (6) is installed at the left end inside the cooling trough (1); a water delivery port of the driving pump (6) is connected to a water pipe (7); the water pipe (7) is installed on the outer side wall of the cooling trough (1); the other end of the water pipe (7) is installed on the side of the fixing frame (4); a reflux groove ( 8), the inner wall of the reflux groove (8) is installed with a guide plate (9), the guide plate (9) is installed obliquely and symmetrically staggered and fixed to each other, the side wall of the cooling groove (1) is provided with a water channel (10), the inner wall of the cooling groove (1) is provided with a water outlet communicated with the water channel (10), and the water outlet is located on the right side of the interior of the cooling groove (1), the right end of the cooling groove (1) is provided with a groove, and an electric cylinder (11) is installed in the groove, a turntable (12) is installed on the top of the output shaft of the electric cylinder (11), a limit sleeve (13) is installed on the top of the turntable (12), a hanging plate (14) is slidably installed on the inner side of the limit sleeve (13), and a hanger (15) is installed on the outer wall of the mold (3).

2. The hot stamping forming equipment for automobile covering parts according to claim 1, characterized in that: The top of the fixing frame (4) is provided with an opening, and a mounting frame (16) is placed at the opening. A fan (17) is installed on the inner side of the mounting frame (16), and an air intake groove (18) is installed on the lower side of the fixing frame (4).

3. The hot stamping forming equipment for automobile covering parts according to claim 1, characterized in that: The limit frames (2) are provided in four groups, and the four groups of limit frames (2) are distributed at the four corners inside the cooling groove (1). The four groups of limit frames (2) are installed in pairs at the upper ends of the two groups of positioning plates (19). A slide groove is provided inside the bottom end of the cooling groove (1), and a slider (20) is slidably installed in the slide groove. A bidirectional screw (21) is rotatably installed in the slide groove of the cooling groove (1). The surfaces of the two groups of sliders (20) are provided with thread grooves that are compatible with the threads on the surface of the bidirectional screw (21). The two groups of sliders (20) are symmetrically distributed on the surface of the bidirectional screw (21). A motor (22) is installed at the lower left side of the cooling groove (1), and the output shaft of the motor (22) is connected to the shaft end of the bidirectional screw (21).

4. The hot stamping forming equipment for automobile covering parts according to claim 3, characterized in that: The bidirectional screw (21) and the slider (20) are both treated to prevent rust and corrosion.

5. The hot stamping forming equipment for automobile covering parts according to claim 3, characterized in that: An inserting plate (23) is installed at the bottom of the limiting frame (2), and positioning slots matching the inserting plate (23) are equidistantly provided on the surface of the positioning plate (19).

6. The hot stamping forming equipment for automobile covering parts according to claim 5, characterized in that: Two groups of supporting wheels (24) are symmetrically mounted at the bottom of the positioning plate (19); the supporting wheels (24) are rotatably mounted and abut against the inner bottom end of the cooling trough (1).

7. The hot stamping forming equipment for automobile covering parts according to claim 1, characterized in that: A filter screen (25) is installed in the cooling tank (1), and the filter screen (25) is located outside the water inlet of the driving pump (6).

8. The hot stamping forming equipment for automobile covering parts according to claim 1, characterized in that: Two groups of water inlets (26) are installed on the outer side wall of the cooling tank (1), and the outside of the water inlets (26) are respectively connected to a liquid inlet pipe and a liquid outlet pipe.

9. A control method for a hot stamping forming equipment for automobile covering parts according to any one of claims 1 to 8, characterized in that: The steps include: S1: The mold (3) is placed in a cooling trough (1), and water is poured into the cooling trough (1). The purpose of rapid cooling is achieved by heat exchange between the water and the mold (1). The water in the cooling trough (1) is pumped into the cooling trough (1) by driving a pump (6) and transmitted to the top of the fixed frame (4) through a water pipe (7). The water then flows downward from a reflux trough (8) in the fixed frame (4), so that the water falls from a high place and contacts with the air for heat exchange during the falling process. When the water falls, it flows in an S shape under the action of a guide plate (9), and a fan (17) can be started. The fan (17) inhales air from an air inlet groove (18) to make it flow upward and blow toward the surface of the water flow. This arrangement can further improve the cooling effect of the water flow by increasing the air flow rate. This arrangement can increase the contact time and contact area between the water and the air, thereby rapidly cooling the warm water. S2: When the mold (3) needs to be replaced to punch different parts, the electric cylinder (11) can be started to lower the hanging plate (14), and the hanging plate (14) can be pushed horizontally to be stuck in the hanger (15). At this time, the electric cylinder (11) rises to push the mold (3) upward from the cooling tank (1), and then the hanging plate (14) can be rotated to move the mold (3) to the outside of the cooling tank 1 and put it down. Then, the mold (3) to be replaced is placed in the cooling tank (1) in the same way; S3: The motor (22) is started to drive the bidirectional screw (21) to rotate, and the slider (20) slides horizontally under the action of the threads on the surface of the bidirectional screw (21). Through this arrangement, the horizontal positions of the positioning plate (19) and the limiting frame (2) can be adjusted, and the horizontal, lateral and longitudinal positions of the limiting frame (2) can be adjusted by inserting the plug plate (23) into different positions on the surface of the positioning plate (19).

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