Cooling system of stamping die and stamping die

Abstract

The invention relates to the technical field of stamping dies, in particular to a cooling system of a stamping die and the stamping die, the cooling system comprises a cooling liquid tank, and further comprises a water pump mounted in the cooling liquid tank; the fixed pipe is fixedly communicated with the side wall of the cooling liquid tank; the first connecting pipe is fixedly communicated between the water pump and the fixed pipe; the telescopic spraying assembly is installed in the fixing pipe and used for spraying cooling liquid on the surfaces of a lower die and an upper die of the stamping die body when the stamping die body conducts stamping part transposition; the telescopic spraying assembly further comprises an airflow driving assembly, and when the telescopic spraying assembly is started, the airflow driving assembly is started synchronously. According to the device, through the arrangement of the telescopic spraying assembly, an atomized cold area is driven to diffuse to the periphery, the flowing and evaporation effect of atomized cooling liquid can be accelerated, the cooling effect of the cooling liquid on a mold is improved, and the cooling efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the field of stamping dies, and particularly to a cooling system for a stamping die and a stamping die. Background Art

[0002] The cooling system of a stamping die is an important device inside the die for regulating the die temperature. During the stamping process, heat is generated when the die contacts the workpiece, causing the die temperature to rise. The cooling system sets cooling channels inside the die, enabling a cooling medium (such as water, oil, etc.) to circulate in the channels to carry away heat, keeping the die temperature within a suitable range, thereby ensuring the quality of the stamped parts, extending the die life, and improving production efficiency.

[0003] Uneven spraying of the coolant means that during the cooling process of the stamping die, the coolant fails to evenly cover the die surface, resulting in too high local temperature of the die, affecting the cooling efficiency and service life of the die. At the same time, it will cause inconsistent cooling speeds of various parts of the stamped part, leading to problems such as warping and deformation of the stamped part, poor dimensional accuracy, and poor surface quality. Moreover, some coolant fails to effectively act on the die surface, causing waste of the coolant. Summary of the Invention

[0004] The purpose of the present invention is to solve the deficiencies in the prior art and propose a cooling system for a stamping die and a stamping die.

[0005] In a first aspect, the present invention provides a cooling system for a stamping die, including a coolant tank, and further including:

[0006] A water pump installed inside the coolant tank;

[0007] A fixed pipe fixedly connected to the side wall of the coolant tank;

[0008] A first connecting pipe fixedly connected between the water pump and the fixed pipe;

[0009] A telescopic spraying assembly installed inside the fixed pipe, used for spraying coolant on the surfaces of the lower die and the upper die of the stamping die body when the stamped part is repositioned on the stamping die body;

[0010] The telescopic spraying assembly further includes an air flow driving assembly, which is synchronously started when the telescopic spraying assembly is started, and is used to drive the atomized coolant ejected by the air flow to diffuse around to be evenly distributed on the surfaces of the lower die and the upper die;

[0011] The interior of the coolant tank is used to store coolant. The water pump pumps the coolant through the first connecting pipe into the interior of the fixed pipe. During the gap between the stamping of the previous material and the switching to the stamping of the next material, the telescopic spraying assembly is controlled to start. The telescopic spraying assembly atomizes the coolant pumped by the water pump into the fixed pipe and sprays it, and sprays it simultaneously onto the upper die above and the lower die below, so that the atomized coolant is evenly sprayed onto the surfaces of the upper die and the lower die, thereby taking away heat by the sprayed cold liquid, which is conducive to quickly and evenly cooling the surfaces of the upper die and the lower die to avoid the situation that the die temperature is too high and affects the use;

[0012] While the telescopic spraying assembly atomizes and sprays the cold liquid, under the driving action of the air flow driving assembly, the atomized cold area is driven to spread around, which is conducive to being evenly distributed onto the surfaces of the upper die and the lower die. And through the action of the air flow, it can accelerate the flow and evaporation of the atomized coolant, which is conducive to improving the cooling effect of the coolant on the die and thus improving the cooling efficiency.

[0013] Preferably, the telescopic spraying assembly includes:

[0014] A sliding pipe, slidably installed at the end of the fixed pipe;

[0015] An electric telescopic rod, fixed on the side wall of the coolant tank, and the electric telescopic rod is used to drive the sliding pipe to slide back and forth;

[0016] A first communication box, fixed inside the end of the sliding pipe;

[0017] Two atomizing nozzles, symmetrically fixed and communicated with the side wall of the first communication box up and down, and the atomizing nozzles penetrate through the sliding pipe;

[0018] After the electric telescopic rod is started, it drives the sliding pipe to slide through the telescopic end, thereby driving the sliding pipe to slide out or reset. The sliding pipe drives the first communication box and the two atomizing nozzles to move to the middle of the stamping die body, so as to simultaneously spray the coolant onto the upper die and the lower die. The water pump pumps the coolant along the first connecting pipe into the interior of the fixed pipe, and then the coolant flows into the interior of the sliding pipe and the first communication box. Subsequently, the coolant is sprayed out along the atomizing nozzles under the pumping pressure of the water pump, so as to realize evenly spraying the coolant onto the surfaces of the upper die and the lower die.

[0019] Preferably, the air flow driving assembly includes:

[0020] Two flared mouths, symmetrically fixed on the side wall of the first communication box up and down, and the atomizing nozzles are located at the centers of the flared mouths;

[0021] Two sets of spiral pipes, with multiple spiral pipes in one set. The spiral pipes in the same set are fixedly arranged in a circumferential array on the side wall of the same flared opening;

[0022] An expansion pipe, fixedly connected between the first communication box and the first connecting pipe, dividing the space inside the sliding pipe and the fixed pipe into an air flow space and a liquid flow space;

[0023] Multiple communication ports are respectively opened on the side walls of the spiral pipes to communicate the spiral pipes with the air flow space;

[0024] A first air pump is fixed on the side wall of the coolant tank and communicates with the air flow space through the output end;

[0025] The flared opening can limit the trajectory of the atomized coolant, so that the atomized coolant flows along the trajectory of the flared opening to diffuse to the edges of the upper die and the lower die, without over-diffusing to the edges and causing waste by flowing out. After the first air pump is started, it drives the air flow. The flowing air enters the air flow space, then passes through the communication port along the air flow space to reach the spiral pipe, and then the air flows out along the spiral pipe. The setting of the spiral pipe makes the flowing air flow in a spiral shape, thereby driving the atomized coolant to diffuse upward or downward in a spiral shape, which is beneficial to avoiding the situation of the atomized coolant freely diffusing around and causing waste by escaping. And by driving the atomized coolant to flow with the air flow, the air flow accelerates the flow speed and evaporation speed of the coolant, which is beneficial to enhancing the cooling effect on the lower die and the upper die.

[0026] Preferably, the air flow driving assembly further includes:

[0027] A first air-liquid dual-purpose pump is fixed on the top of the coolant tank, and the output end communicates with the coolant tank;

[0028] A negative pressure port is fixed on the bottom edge of the upper die. The negative pressure port includes a rectangular frame, and an empty slot is arranged inside the rectangular frame. A plurality of air flow round holes are arranged through the bottom of the empty slot;

[0029] A second connecting pipe is fixedly connected to one end of the first air-liquid dual-purpose pump;

[0030] A plurality of straight pipes are communicated between the second connecting pipe and the negative pressure port;

[0031] After the first air-liquid dual-purpose pump is started, it drives the airflow to flow, so that the airflow flows along the trajectory of the negative pressure port, the straight pipe, the second connecting pipe, the first air-liquid dual-purpose pump, and the coolant tank, so as to connect with the flow path of the airflow pumped by the first air pump through the flow of the airflow, realize the guidance of the atomized coolant, make the atomized coolant continue to flow towards the negative pressure port after hitting the surface of the upper mold, and then be discharged into the interior of the coolant tank for recycling, which is conducive to reducing the diffusion of the cold area liquid to the outside and reducing the waste of the coolant.

[0032] Preferably, the air flow driving assembly further includes:

[0033] The guiding strip, having a rectangular frame structure, is fixed to the bottom edge of the upper mold and is located outside the negative pressure port;

[0034] The guiding groove, arranged in a rectangular frame shape, is opened on the top edge of the lower mold, and the guiding strip and the guiding groove are arranged corresponding to each other up and down;

[0035] The second air-liquid dual-purpose pump is fixed to the top of the coolant tank;

[0036] The second communication box communicates with the input end of the second air-liquid dual-purpose pump;

[0037] The third connecting pipe is fixedly connected to communicate the second communication box and the guiding groove;

[0038] After the second air-liquid dual-purpose pump is started, it can drive the airflow to flow, so that the airflow flows along the trajectory of the guiding groove, the third connecting pipe, the second communication box, the second air-liquid dual-purpose pump, and the coolant tank, so that the sprayed atomized coolant accumulates and liquefies after hitting the surfaces of the lower mold and the upper mold, and then flows downward along the inclined surface trajectory of the guiding strip, drips downward into the interior of the guiding groove, and then flows along the flow path of the airflow until it enters the interior of the coolant tank for recycling, which is conducive to recycling the sprayed coolant and avoiding the waste caused by the direct discharge of the used coolant.

[0039] Preferably, the air flow driving assembly further includes:

[0040] The filter box is fixed above the interior of the coolant tank;

[0041] The sealing cover is fixed to the top of the filter box, and the output ends of the first air-liquid dual-purpose pump and the second air-liquid dual-purpose pump both extend into the interior of the filter box after passing through the sealing cover;

[0042] The filtration box is arranged such that the first air-liquid dual-purpose pump and the second air-liquid dual-purpose pump transport the air flow and the driven coolant to the inside of the filtration box. The coolant flows downward through the filtration box and is recycled into the inside of the coolant tank. The impurities doped in the recycled coolant are filtered by the filtration box, thereby avoiding the situation that impurities return to the inside of the coolant tank along with the recycled coolant and affecting the reuse of the coolant.

[0043] Preferably, the air flow driving assembly further includes:

[0044] An air outlet strip, fixed to the bottom edge of the upper mold, having a rectangular frame structure and located outside the guiding strip;

[0045] An air inlet strip, fixed to the top edge of the air inlet strip, having a rectangular frame structure and located outside the guiding groove;

[0046] A plurality of second air pumps, respectively fixed to the top and bottom of the stamping die body;

[0047] A plurality of fourth connecting pipes, respectively connecting each second air pump with the air outlet strip or the air inlet strip;

[0048] The second air pump located above is connected to the air outlet strip through the output end and then connected to the fourth connecting pipe, so that the air flow is discharged from the air outlet strip. The second air pump located below is connected to the air inlet strip through the input end and then connected to the fourth connecting pipe, so that the air flow enters from the air inlet strip. Thus, after the air inlet strip and the air outlet strip are aligned vertically, an air flow connection is formed, and an air curtain is formed between the lower mold and the upper mold. When the atomized coolant diffuses around, when it diffuses to the position of the air curtain, it flows downward along the action of the air curtain and is discharged from the air inlet strip, which is beneficial to avoiding the escape of the coolant.

[0049] Preferably, the air flow driving assembly further includes:

[0050] A cooling fan, fixed to the bottom of the stamping die body, for guiding the air flow through the fourth connecting pipe;

[0051] The cooling fan drives the air flow to flow, so that the air flow flows through the fourth connecting pipe. The fourth connecting pipe is made of heat-conducting metal material. When the recycled coolant passes through the fourth connecting pipe, heat exchange can occur under the action of the flowing air flow, thereby cooling the coolant. Thus, after the coolant is cooled, it is recycled into the inside of the coolant tank for reuse, which is beneficial to maintaining the cooling effect when the coolant is reused.

[0052] Preferably, the air flow driving assembly further includes:

[0053] The output end of the second air pump located below is communicated with the second communication box;

[0054] The output end of the second air pump located below is connected to the second communication box, so that under the action of the air curtain, the atomized cooling liquid flowing along with the air curtain can enter the interior of the second communication box under the pumping action of the second air pump, and then return to the interior of the cooling liquid tank under the pumping action of the second air-liquid dual-purpose pump for recycling.

[0055] In a second aspect, a stamping die is provided, including the cooling system of the above stamping die.

[0056] Compared with the prior art, the present invention has the following beneficial effects:

[0057] Through the setting of the telescopic spraying component and the driving action of the air flow driving component, the atomized cold area is driven to spread around, which is beneficial to evenly distribute to the surfaces of the upper die and the lower die. And through the action of the air flow, the flow and evaporation of the atomized cooling liquid can be accelerated, which is beneficial to improving the cooling effect of the cooling liquid on the die and thus improving the cooling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0059] Figure 2 It is a schematic diagram of the structure after the overall section of the present invention Figure 1 .

[0060] Figure 3 It is of the present invention Figure 2 The enlarged schematic diagram of the structure at A in

[0061] Figure 4 It is a schematic diagram of the structure after the overall section of the present invention Figure 2 .

[0062] Figure 5 It is of the present invention Figure 4 The enlarged schematic diagram of the structure at B in

[0063] Figure 6 It is a schematic diagram of the structure after the section of the telescopic spraying component of the present invention.

[0064] Figure 7 It is of the present invention Figure 6 The enlarged schematic diagram of the structure at C in

[0065] In the figure: 1. Stamping die main body; 101. Lower die; 102. Upper die; 103. Cylinder; 2. Cooling liquid tank; 201. Water pump; 202. First connecting pipe; 203. Fixed pipe; 204. Sliding pipe; 205. First communication box; 206. Atomizing nozzle; 207. Electric telescopic rod; 3. Bell mouth; 301. Spiral pipe; 302. Communication port; 303. Telescopic pipe; 304. First air pump; 4. First air-liquid dual-use pump; 401. Second connecting pipe; 402. Negative pressure port; 403. Straight pipe; 5. Guide strip; 501. Guide groove; 502. Third connecting pipe; 503. Second communication box; 504. Second air-liquid dual-use pump; 6. Filter frame; 601. Sealing cover; 7. Air outlet strip; 701. Air inlet strip; 702. Fourth connecting pipe; 703. Second air pump; 8. Cooling fan. Detailed implementation mode

[0066] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments in the following description are only examples, and other obvious variations can be thought of by those skilled in the art.

[0067] As Figures 1 to 7 shown, a cooling system for a stamping die includes a cooling liquid tank 2, and further includes:

[0068] A water pump 201 is installed inside the cooling liquid tank 2;

[0069] A fixed pipe 203 is fixedly communicated with the side wall of the cooling liquid tank 2;

[0070] A first connecting pipe 202 is fixedly communicated between the water pump 201 and the fixed pipe 203;

[0071] A telescopic spraying assembly is installed inside the fixed pipe 203 and is used for spraying cooling liquid on the surfaces of the lower die 101 and the upper die 102 of the stamping die main body 1 when the stamping die main body 1 changes the position of the stamping part;

[0072] The telescopic spraying assembly further includes an air flow driving assembly, which is synchronously started when the telescopic spraying assembly is started, and is used for driving the atomized cooling liquid ejected by the air flow to diffuse around so as to be evenly distributed on the surfaces of the lower die 101 and the upper die 102;

[0073] The uneven spraying of the cooling liquid means that during the cooling process of the stamping die, the cooling liquid fails to evenly cover the surface of the die, resulting in too high local temperature of the die, affecting the cooling efficiency and service life of the die, and at the same time causing inconsistent cooling speeds of each part of the stamping part, thereby causing problems such as warping deformation, poor dimensional accuracy, and poor surface quality of the stamping part, and part of the cooling liquid fails to effectively act on the surface of the die, resulting in waste of the cooling liquid;

[0074] This embodiment of the present invention can solve the above problems. The specific implementation is as follows. The interior of the coolant tank 2 is used to store coolant. The water pump 201 pumps the coolant through the first connecting pipe 202 into the interior of the fixed pipe 203. During the gap between the stamping of the previous material and the switching to the stamping of the next material, the telescopic spraying assembly is controlled to start. The telescopic spraying assembly atomizes the coolant pumped by the water pump 201 into the fixed pipe 203 and sprays it, and sprays it simultaneously onto the upper die 102 above and the lower die 101 below, so that the atomized coolant is evenly sprayed onto the surfaces of the upper die 102 and the lower die 101. Thus, the heat is taken away by the sprayed cold zone liquid, which is conducive to quickly and evenly cooling the surfaces of the upper die 102 and the lower die 101, so as to avoid the situation that the mold temperature is too high and affects the use.

[0075] While the telescopic spraying assembly atomizes and sprays the cold zone liquid, under the driving action of the air flow driving assembly, the atomized cold zone is driven to spread around, which is conducive to being evenly distributed on the surfaces of the upper die 102 and the lower die 101. And through the action of the air flow, the flow and evaporation of the atomized coolant can be accelerated, which is conducive to improving the cooling effect of the coolant on the mold and thus improving the cooling efficiency.

[0076] As an optional embodiment, the telescopic spraying assembly includes:

[0077] A sliding pipe 204, slidably installed at the end of the fixed pipe 203;

[0078] An electric telescopic rod 207, fixed on the side wall of the coolant tank 2. The electric telescopic rod 207 is used to drive the sliding pipe 204 to telescopically move;

[0079] A first communication box 205, fixed inside the end of the sliding pipe 204;

[0080] Two atomizing nozzles 206, symmetrically fixed and communicated with the side wall of the first communication box 205 up and down. The atomizing nozzles 206 penetrate through the sliding pipe 204;

[0081] After the electric telescopic rod 207 is started, it drives the sliding pipe 204 to slide through the telescopic end, thereby driving the sliding pipe 204 to slide out or reset. The sliding pipe 204 drives the first communication box 205 and the two atomizing nozzles 206 to move to the middle of the stamping die body 1, so as to simultaneously spray the coolant atomization on the upper die 102 and the lower die 101. The water pump 201 pumps the coolant along the first connecting pipe 202 into the interior of the fixed pipe 203. Subsequently, the coolant flows into the interior of the sliding pipe 204 and the first communication box 205. Then, under the pumping pressure of the water pump 201, the coolant is sprayed out along the atomizing nozzles 206, thus realizing the even spraying of the coolant onto the surfaces of the upper die 102 and the lower die 101.

[0082] As an alternative embodiment, the air flow driving assembly includes:

[0083] Two flared nozzles 3, symmetrically fixed on the side walls of the first communication box 205 up and down, and the atomizing nozzle 206 is located at the center of the flared nozzle 3;

[0084] Two groups of spiral pipes 301, with multiple spiral pipes 301 in one group, and the spiral pipes 301 in the same group are fixed on the side wall of the same flared nozzle 3 in a circumferential array;

[0085] The telescopic pipe 303 is fixedly connected between the first communication box 205 and the first connecting pipe 202, dividing the space inside the sliding pipe 204 and the fixed pipe 203 into an air flow space and a liquid flow space;

[0086] Multiple communication ports 302 are respectively opened on the side walls of the respective spiral pipes 301 to communicate the spiral pipes 301 with the air flow space;

[0087] The first air pump 304 is fixed on the side wall of the coolant tank 2 and communicates with the air flow space through the output end.

[0088] The flared nozzle 3 can limit the trajectory of the atomized coolant, so that the atomized coolant flows along the trajectory of the flared nozzle 3 to diffuse to the edges of the upper die 102 and the lower die 101, without excessive diffusion to the edges resulting in wasteful outflow. After the first air pump 304 is started, it drives the air flow. The flowing air enters the air flow space, then passes through the communication port 302 along the air flow space to reach the spiral pipe 301, and then the air flows out along the spiral pipe 301. The setting of the spiral pipe 301 makes the outflowing air flow in a spiral manner, thereby driving the atomized coolant to diffuse upward or downward in a spiral shape, which is beneficial to avoiding the situation of wasteful escape caused by the free diffusion of the atomized coolant in all directions. And by driving the atomized coolant to flow with the air flow, the air flow accelerates the flow speed and evaporation speed of the coolant, which is beneficial to enhancing the cooling effect on the lower die 101 and the upper die 102.

[0089] As an alternative embodiment, the air flow driving assembly further includes:

[0090] The first air-liquid dual-purpose pump 4 is fixed on the top of the coolant tank 2, and the output end communicates with the coolant tank 2;

[0091] The negative pressure port 402 is fixed on the bottom edge of the upper die 102. The negative pressure port 402 includes a rectangular frame, and an empty slot is arranged inside the rectangular frame, and a number of air flow round holes are arranged through the bottom of the empty slot;

[0092] The second connecting pipe 401 is fixedly connected to the first air-liquid dual-purpose pump 4 at one end;

[0093] A number of straight pipes 403 are connected between the second connecting pipe 401 and the negative pressure port 402;

[0094] After the first air-liquid dual-purpose pump 4 starts, it drives the air flow, so that the air flow passes through the negative pressure port 402, the straight pipe 403, the second connecting pipe 401, the first air-liquid dual-purpose pump 4, and the coolant tank 2 in a trajectory, so as to connect with the flow path of the air flow pumped by the first air pump 304 through the air flow, realizing the guidance of the atomized coolant, so that the atomized coolant continues to flow towards the negative pressure port 402 after hitting the surface of the upper mold 102, and then is discharged into the interior of the coolant tank 2 for recycling, which is beneficial to reducing the diffusion of the cold zone liquid to the outside and reducing the waste of the coolant.

[0095] As an alternative embodiment, the air flow driving assembly further includes:

[0096] The guiding strip 5 has a rectangular frame structure and is fixed to the bottom edge of the upper mold 102 and is located outside the negative pressure port 402;

[0097] The guiding groove 501 is arranged in a rectangular frame shape and is opened on the top edge of the lower mold 101. The guiding strip 5 and the guiding groove 501 are arranged corresponding to each other up and down;

[0098] The second air-liquid dual-purpose pump 504 is fixed to the top of the coolant tank 2;

[0099] The second communication box 503 communicates with the input end of the second air-liquid dual-purpose pump 504;

[0100] The third connecting pipe 502 is fixedly connected to the second communication box 503 and the guiding groove 501;

[0101] After the second air-liquid dual-purpose pump 504 starts, it can drive the air flow, so that the air flow flows along the guiding groove 501, the third connecting pipe 502, the second communication box 503, the second air-liquid dual-purpose pump 504, and the coolant tank 2 in a trajectory, so that the sprayed atomized coolant accumulates and liquefies after hitting the surfaces of the lower mold 101 and the upper mold 102, and then flows downward along the inclined surface trajectory of the guiding strip 5, drips downward into the interior of the guiding groove 501, and then flows along the air flow path until it enters the interior of the coolant tank 2 for recycling, which is beneficial to recycling the sprayed coolant and avoiding the waste caused by the direct discharge of the used coolant.

[0102] As an alternative embodiment, the air flow driving assembly further includes:

[0103] The filter box 6 is fixed above the interior of the coolant tank 2;

[0104] The sealing cover 601 is fixed to the top of the filter frame 6. The output ends of the first air-liquid dual-purpose pump 4 and the second air-liquid dual-purpose pump 504 both penetrate through the sealing cover 601 and extend into the interior of the filter frame 6.

[0105] The setting of the filter frame 6 enables the first air-liquid dual-purpose pump 4 and the second air-liquid dual-purpose pump 504 to convey the air flow and the driven coolant into the interior of the filter frame 6. The coolant flows downward through the filter frame 6 and is recycled into the interior of the coolant tank 2. The impurities doped in the recycled coolant are filtered under the action of the filter frame 6, thus avoiding the situation that impurities return to the interior of the coolant tank 2 along with the recycled coolant and affect the reuse of the coolant.

[0106] As an alternative embodiment, the air flow driving assembly further includes:

[0107] The air outlet strip 7 is fixed to the bottom edge of the upper mold 102, having a rectangular frame structure and located outside the guiding strip 5.

[0108] The air inlet strip 701 is fixed to the top edge of the air inlet strip 701, having a rectangular frame structure and located outside the guiding groove 501.

[0109] A plurality of second air pumps 703 are respectively fixed to the top and bottom of the stamping die body 1.

[0110] A plurality of fourth connecting pipes 702 respectively connect each second air pump 703 with the air outlet strip 7 or the air inlet strip 701.

[0111] The second air pump 703 located above is connected to the air outlet strip 7 through the output end connecting the fourth connecting pipe 702, so that the air flow is discharged from the air outlet strip 7. The second air pump 703 located below is connected to the air inlet strip 701 through the input end connecting the fourth connecting pipe 702, so that the air flow enters from the air inlet strip 701. Thus, the air inlet strip 701 and the air outlet strip 7 are vertically aligned to form an air flow connection, thereby forming an air curtain between the lower mold 101 and the upper mold 102. When the atomized coolant diffuses around, when it diffuses to the air curtain position, it will flow downward along the action of the air curtain and be discharged from the air inlet strip 701, which is beneficial to avoiding the escape of the coolant.

[0112] As an alternative embodiment, the air flow driving assembly further includes:

[0113] The heat dissipation fan 8 is fixed to the bottom of the stamping die body 1 and is used to guide the air flow through the fourth connecting pipe 702.

[0114] The cooling fan 8 drives the air flow, causing the air flow to pass through the fourth connecting pipe 702. The fourth connecting pipe 702 is made of heat-conducting metal. When the recycled coolant passes through the fourth connecting pipe 702, heat exchange can occur under the action of the flowing air, thereby cooling the coolant. Then the cooled coolant is recycled into the interior of the coolant tank 2 for reuse, which is conducive to maintaining the cooling effect when the coolant is reused again.

[0115] As an alternative embodiment, the air flow driving assembly further includes:

[0116] The output end of the second air pump 703 located below is connected to the second communication box 503;

[0117] The output end of the second air pump 703 located below is connected to the second communication box 503, so that under the action of the air curtain, the atomized coolant flowing with the air curtain can enter the interior of the second communication box 503 under the pumping action of the second air pump 703, and then return to the interior of the coolant tank 2 for recycling under the pumping action of the second air-liquid dual-use pump 504.

[0118] A stamping die includes the cooling system of the above stamping die. The top of the stamping die main body 1 is a cylinder 103. After the cylinder 103 is started, it drives the upper die 102 to move, so that the upper die 102 punches the workpiece under the relative action of the lower die 101.

[0119] The working principle of the present invention: The interior of the coolant tank 2 is used to store the coolant. The water pump 201 pumps the coolant into the interior of the fixed pipe 203 through the first connecting pipe 202. During the gap between the completion of stamping the previous material and switching to stamping the next material, the telescopic spraying assembly is controlled to start. The telescopic spraying assembly atomizes and sprays the coolant pumped by the water pump 201 into the fixed pipe 203, and sprays it simultaneously onto the upper die 102 above and the lower die 101 below, so that the atomized coolant is evenly sprayed onto the surfaces of the upper die 102 and the lower die 101. Thus, the heat is carried away by the sprayed cold zone liquid, which is conducive to quickly and evenly cooling and lowering the temperatures of the surfaces of the upper die 102 and the lower die 101, so as to avoid the situation that the die temperature is too high and affects the use;

[0120] While the telescopic spraying assembly atomizes and sprays the cold zone liquid, under the driving action of the air flow driving assembly, the atomized cold zone is driven to spread around, which is conducive to being evenly distributed onto the surfaces of the upper die 102 and the lower die 101. And through the action of the air flow, it can accelerate the flow and evaporation of the atomized coolant, which is conducive to improving the cooling effect of the coolant on the die and thus improving the cooling efficiency.

[0121] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A cooling system for a stamping die, comprising a coolant tank (2), characterized in that, Further included are: A water pump (201), installed inside the coolant tank (2); A fixed pipe (203), fixedly connected to the side wall of the coolant tank (2); A first connecting pipe (202), fixedly connected between the water pump (201) and the fixed pipe (203); A telescopic spraying assembly, installed inside the fixed pipe (203), for spraying coolant on the surfaces of the lower die (101) and the upper die (102) of the stamping die body (1) when the stamping parts are being repositioned on the stamping die body (1); The telescopic spraying assembly further includes an air flow driving assembly, which is synchronously started when the telescopic spraying assembly is started, and is used to drive the atomized coolant ejected by the air flow to diffuse around so as to be evenly distributed on the surfaces of the lower die (101) and the upper die (102).

2. The cooling system of a stamping die according to claim 1, wherein The telescopic spraying assembly includes: A sliding pipe (204), slidably installed at the end of the fixed pipe (203); An electric telescopic rod (207), fixed to the side wall of the coolant tank (2), and the electric telescopic rod (207) is used to drive the sliding pipe (204) to telescopically move; A first communication box (205), fixed inside the end of the sliding pipe (204); Two atomizing nozzles (206), symmetrically fixed and connected to the side wall of the first communication box (205) up and down, and the atomizing nozzles (206) penetrate through the sliding pipe (204).

3. The cooling system of a stamping die according to claim 2, characterized in that, The air flow driving assembly includes: Two flared mouths (3), symmetrically fixed to the side wall of the first communication box (205) up and down, and the atomizing nozzles (206) are located at the centers of the flared mouths (3); Two groups of spiral pipes (301), with multiple spiral pipes (301) in one group, and the spiral pipes (301) in the same group are fixedly arranged in a circumferential array on the side wall of the same flared mouth (3); A telescopic pipe (303), fixedly connected between the first communication box (205) and the first connecting pipe (202), dividing the space inside the sliding pipe (204) and the fixed pipe (203) into an air flow space and a liquid flow space; Multiple communication ports (302), respectively opened on the side walls of the spiral pipes (301) to connect the spiral pipes (301) with the air flow space; A first air pump (304), fixed to the side wall of the coolant tank (2), and connected to the air flow space through the output end.

4. The cooling system of a stamping die according to claim 3, characterized in that, The air flow driving assembly further includes: A first air-liquid dual-purpose pump (4), fixed to the top of the coolant tank (2), and the output end is connected to the coolant tank (2); A negative pressure port (402), fixed to the bottom edge of the upper die (102), and the negative pressure port (402) includes a rectangular frame, and an empty slot is arranged inside the rectangular frame, and a plurality of air flow round holes are arranged through the bottom of the empty slot; A second connecting pipe (401), with one end fixedly connected to the first air-liquid dual-purpose pump (4); A plurality of straight pipes (403), connected between the second connecting pipe (401) and the negative pressure port (402).

5. The cooling system of a stamping die according to claim 4, characterized in that, The air flow driving assembly further includes: The guiding strip (5) is in a rectangular frame structure and is fixed to the bottom edge of the upper die (102) and is located outside the negative pressure port (402). The guiding groove (501) is arranged in a rectangular frame shape and is opened on the top edge of the lower die (101). The guiding strip (5) and the guiding groove (501) are arranged corresponding to each other up and down. The second air-liquid dual-purpose pump (504) is fixed to the top of the coolant tank (2). The second connecting box (503) communicates with the input end of the second air-liquid dual-purpose pump (504). The third connecting pipe (502) is fixedly connected to the second connecting box (503) and the guiding groove (501).

6. The cooling system of a stamping die according to claim 5, characterized in that, The air flow driving assembly further includes: The filter frame (6) is fixed above the interior of the coolant tank (2). The sealing cover (601) is fixed to the top of the filter frame (6). The output ends of the first air-liquid dual-purpose pump (4) and the second air-liquid dual-purpose pump (504) both extend into the interior of the filter frame (6) after passing through the sealing cover (601).

7. The cooling system of a stamping die according to claim 6, wherein, The air flow driving assembly further includes: The air outlet strip (7) is fixed to the bottom edge of the upper die (102), is in a rectangular frame structure, and is located outside the guiding strip (5). The air inlet strip (701) is fixed to the top edge of the air inlet strip (701), is in a rectangular frame structure, and is located outside the guiding groove (501). A plurality of second air pumps (703) are respectively fixed to the top and bottom of the stamping die body (1). A plurality of fourth connecting pipes (702) respectively communicate each second air pump (703) with the air outlet strip (7) or the air inlet strip (701).

8. The cooling system of a stamping die according to claim 7, characterized in that, The air flow driving assembly further includes: The heat dissipation fan (8) is fixed to the bottom of the stamping die body (1) and is used to guide the air flow through the fourth connecting pipe (702).

9. The cooling system of a stamping die according to claim 8, characterized in that The air flow driving assembly further includes: The output end of the second air pump (703) located below communicates with the second connecting box (503).

10. A stamping die, characterized in that, A cooling system including the stamping die according to any one of claims 1 to 9.

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