A rapid cooling structure for cold stamping dies

By designing cooling components in cold stamping dies and using hydraulic and electric motor drives to spray coolant, the wear problem caused by rising die temperature is solved, thereby improving the die's service life and working efficiency.

CN224424019UActive Publication Date: 2026-06-30CHONGQING CHANGHE AUTOMOBILE TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING CHANGHE AUTOMOBILE TECHNOLOGY CO LTD
Filing Date
2025-06-17
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

After a long period of stamping, the surface temperature of the die increases rapidly due to the intense friction between the die and the sheet metal, causing the die steel to soften and wear faster.

Method used

A cooling assembly was designed, including a chute, a slider, a stand, a horizontal pipe, and a nozzle. Through hydraulic drive and motor control, the spraying of coolant enables rapid cooling of the surfaces of the upper and lower molds.

Benefits of technology

This effectively avoids wear caused by a rapid increase in mold temperature, thus improving the mold's service life and working efficiency.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224424019U_ABST
    Figure CN224424019U_ABST
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Abstract

This utility model provides a rapid cooling structure for cold stamping dies, relating to the field of die cooling technology. It includes a base, with a right-angle bracket fixedly mounted on one side of the base's upper surface. A hydraulic cylinder is fixedly mounted on the upper surface of the right-angle bracket, with the output end of the hydraulic cylinder passing through the right-angle bracket and fixedly mounted on an upper die. A lower die is fixedly mounted on the other side of the base's upper surface. In this utility model, the operator starts a first motor, causing its output shaft to drive a lead screw to rotate. The rotating lead screw, through a threaded screw, moves a slider along a slide groove. Simultaneously, the operator pours coolant into a horizontal tube, causing the coolant to be sprayed onto the surfaces of the upper and lower dies through nozzles, thereby rapidly cooling them and preventing a rapid increase in temperature that could lead to wear.
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Description

Technical Field

[0001] This utility model relates to the field of mold cooling technology, and more specifically, to a rapid cooling structure for cold stamping dies. Background Technology

[0002] In the field of water conservancy construction, a water depth measuring device is a device used to measure the depth of water bodies, mainly for measuring the depth of water bodies used in water conservancy projects to widen and deepen river channels. An existing cold stamping die, with publication number CN214866644U, includes an upper die base and a lower die base. A pad is provided on the lower end face of the upper die base; a die fixing plate is mounted on the pad; a stripper plate is connected to the die fixing plate; the die fixing plate has multiple first punch through holes and multiple first circular mounting slots arranged circumferentially from the inside out; the upper end face of the stripper plate has multiple second punch through holes and multiple second circular mounting slots arranged circumferentially from the inside out; a punch is inserted between each first punch through hole and each second punch through hole; a rectangular spring is installed between each first circular mounting slot and each second circular mounting slot; a punching compound die is provided on the lower end face of the stripper plate; a punching compound punch is provided on the upper end face of the lower die base; the punching compound die and the punching compound punch cooperate with each other.

[0003] However, in the above scheme, after the cold stamping die has been stamping the sheet metal for a long time, the temperature of the die surface will increase rapidly due to the continuous and intense friction between the die and the sheet metal. The high temperature may cause the die steel to soften and be tempered, thus accelerating wear. Utility Model Content

[0004] The main purpose of this utility model is to provide a rapid cooling structure for cold stamping dies, which can effectively solve the problem in the background art that after a long period of stamping of sheet metal, the temperature of the die surface will rise rapidly due to the continuous and intense friction between the die and the sheet metal, and the high temperature may cause the die steel to soften and temper, accelerating wear.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A rapid cooling structure for a cold stamping die includes a base, a right-angle frame fixedly mounted on one side of the upper surface of the base, a hydraulic cylinder fixedly mounted on the upper surface of the right-angle frame, the output end of the hydraulic cylinder passing through the right-angle frame and fixedly mounted on an upper die, and a lower die fixedly mounted on the other side of the upper surface of the base.

[0007] The upper surface of the base is provided with a cooling assembly for cooling the upper and lower molds on the side near the right-angle frame.

[0008] Preferably, the cooling assembly includes a support base, which is fixedly installed on the upper surface of the base near the right-angle frame. A groove is provided on the upper surface of the support base, and a slider is slidably disposed in the groove. A stand is fixedly installed on the upper surface of the slider. Two horizontal pipes are provided at one end of the stand, and several nozzles are fixedly installed on the body of each of the two horizontal pipes.

[0009] A lead screw is rotatably installed between the two sides of the inner wall of the slide groove, and a first motor is fixedly installed on one side of the support base. One end of the lead screw passes through the support base and is fixedly connected to the output shaft end of the first motor.

[0010] Preferably, two movable grooves are formed on one side surface of the upright frame, and limit grooves are formed on both sides of the inner wall of the two movable grooves. A movable block is slidably arranged in the adjacent limit grooves, and the two horizontal tubes are respectively rotatably installed on one side of the corresponding movable block.

[0011] Preferably, a vertical plate is fixedly installed on the upper surface of the base near the lower mold, and two composite guide grooves are formed through one side surface of the vertical plate;

[0012] The two horizontal tubes are fitted with connecting sleeves, and the two connecting sleeves are slidably disposed in the corresponding composite guide grooves.

[0013] Preferably, two through slots are formed on one side of the inner wall of the two movable slots, and a mounting bracket is fixedly installed on the side of each of the two movable blocks near the through slots. A second motor is fixedly installed on one side of each of the two mounting brackets, and the output shafts of the two second motors pass through the corresponding mounting brackets and are fixedly connected to the horizontal tube.

[0014] Preferably, an annular sealing plate is fixedly installed at the opening of each of the two horizontal pipes, and an annular sealing groove is opened on the inner wall surface of each of the two annular sealing plates. A sealing circular plate is movably arranged in each of the two annular sealing grooves, and a water inlet pipe is fixedly installed through one side of each of the two sealing circular plates.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) The worker starts the first motor, which drives the lead screw to rotate. The rotating lead screw drives the slider to move along the slide groove by screwing in. At the same time, the worker pours coolant into the horizontal tube, so that the coolant is sprayed on the surface of the upper and lower molds through the nozzle, thereby cooling them quickly and avoiding the situation where the temperature of the upper and lower molds increases sharply and causes wear. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a rapid cooling structure for a cold stamping die according to the present invention.

[0018] Figure 2 This is a top view schematic diagram of a rapid cooling structure for a cold stamping die according to the present invention;

[0019] Figure 3 This utility model relates to a rapid cooling structure for a cold stamping die. Figure 2 Schematic diagram of the cross-sectional structure at point AA;

[0020] Figure 4 This utility model relates to a rapid cooling structure for a cold stamping die. Figure 2 Schematic diagram of the cross-sectional structure at point BB;

[0021] Figure 5 This utility model relates to a rapid cooling structure for a cold stamping die. Figure 3 Enlarged schematic diagram of the structure at point A;

[0022] Figure 6 This utility model relates to a rapid cooling structure for a cold stamping die. Figure 3 Enlarged schematic diagram of the structure at point B.

[0023] In the diagram: 1. Base; 2. Right-angle frame; 3. Hydraulic cylinder; 4. Upper mold; 5. Lower mold; 6. Cooling assembly; 601. Support seat; 602. Slide groove; 603. Slider; 604. Stand; 605. Horizontal pipe; 606. Nozzle; 607. Lead screw; 608. First motor; 7. Moving groove; 8. Limiting groove; 9. Moving block; 10. Vertical plate; 11. Composite guide groove; 12. Connecting sleeve; 13. Through groove; 14. Mounting bracket; 15. Second motor; 16. Annular sealing plate; 17. Annular sealing groove; 18. Sealing circular plate; 19. Water inlet pipe. Detailed Implementation

[0024] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0025] like Figures 1-6 As shown, a rapid cooling structure for a cold stamping die includes a base 1, a right-angle bracket 2 fixedly installed on one side of the upper surface of the base 1, a hydraulic cylinder 3 fixedly installed on the upper surface of the right-angle bracket 2, the output end of the hydraulic cylinder 3 passing through the right-angle bracket 2 and fixedly installed with an upper die 4, and a lower die 5 fixedly installed on the other side of the upper surface of the base 1.

[0026] A cooling assembly 6 for cooling the upper mold 4 and the lower mold 5 is provided on the upper surface of the base 1 near the right-angle bracket 2.

[0027] The cooling assembly 6 includes a support base 601, which is fixedly installed on the upper surface of the base 1 near the right-angle frame 2. A groove 602 is provided on the upper surface of the support base 601, and a slider 603 is slidably arranged in the groove 602. A stand 604 is fixedly installed on the upper surface of the slider 603. Two horizontal pipes 605 are provided at one end of the stand 604, and several nozzles 606 are fixedly installed on the body of each of the two horizontal pipes 605.

[0028] A lead screw 607 is rotatably installed between the two sides of the inner wall of the slide 602, and a first motor 608 is fixedly installed on one side of the support 601. One end of the lead screw 607 passes through the support 601 and is fixedly connected to the output shaft end of the first motor 608.

[0029] The worker places the sheet metal between the upper mold 4 and the lower mold 5. Then, the worker activates the hydraulic cylinder 3, causing its output end to move the upper mold 4. Under the combined action of the upper mold 4 and the lower mold 5, the sheet metal is stamped and formed. After the upper mold 4 and the lower mold 5 have stamped the sheet metal, the worker controls the upper mold 4 to reset and then removes the formed part. The worker then starts the first motor 608, causing its output shaft to drive the lead screw 607 to rotate. The rotating lead screw 607 drives the slider 603 to move along the slide groove 602 by screwing in. At the same time, the worker pours coolant into the horizontal tube 605, so that the coolant is sprayed onto the surface of the upper mold 4 and the lower mold 5 through the nozzle 606, thereby rapidly cooling them and preventing the upper mold 4 and the lower mold 5 from overheating and causing wear.

[0030] In another embodiment of this utility model, two movable grooves 7 are provided on one side surface of the upright frame 604, and limit grooves 8 are provided through both sides of the inner wall of the two movable grooves 7. A movable block 9 is slidably arranged in the adjacent limit grooves 8, and two horizontal tubes 605 are respectively rotatably installed through and on one side of the corresponding movable block 9.

[0031] By controlling the moving block 9 to move along the corresponding limiting groove 8, the operator can adjust the height of the two horizontal pipes 605 to keep the distance between the nozzle 606 and the surfaces of the upper mold 4 and lower mold 5 constant, thus avoiding the situation where the coolant cannot fully contact the surface due to the excessive distance, which would greatly reduce the heat dissipation effect.

[0032] In another embodiment of the present invention, a vertical plate 10 is fixedly installed on the upper surface of the base 1 near the lower mold 5, and two composite guide grooves 11 are opened through one side of the vertical plate 10.

[0033] Two horizontal tubes 605 are fitted with connecting sleeves 12, and the two connecting sleeves 12 are slidably disposed in the corresponding composite guide grooves 11.

[0034] As the connecting sleeve 12 moves along the composite guide groove 11 following the slider 603, the connecting sleeve 12 can drive the horizontal tube 605 to rise and fall under the pushing action of the inner wall of the composite guide groove 11. This eliminates the need for staff to set up additional drive equipment to drive the horizontal tube 605 to rise and fall, thus improving the utilization rate of power.

[0035] In another embodiment of this utility model, two through slots 13 are opened through one side of the inner wall of the two moving slots 7. The two moving blocks 9 are fixedly installed with mounting brackets 14 on the side near the through slots 13. The two mounting brackets 14 are fixedly installed with second motors 15 on one side. The output shaft ends of the two second motors 15 pass through the corresponding mounting brackets 14 and are fixedly connected to the horizontal tube 605.

[0036] The staff started the second motor 15, which caused its output shaft to drive the horizontal tube 605 to rotate, making it convenient for the staff to adjust the spray angle of the nozzle 606 so that it could always be directly facing the surface of the upper mold 4 and the lower mold 5, so that the coolant could have more full contact with their surfaces.

[0037] Annular sealing plates 16 are fixedly installed at the openings of the two horizontal pipes 605. Annular sealing grooves 17 are opened on the inner wall surface of the two annular sealing plates 16. A sealing circular plate 18 is movably installed in the two annular sealing grooves 17. A water inlet pipe 19 is fixedly installed through one side of the two sealing circular plates 18.

[0038] The operator connects the output end of the liquid supply device to the inlet pipe 19 through a hose. With the cooperation of the sealing disc 18 and the annular sealing groove 17, the operator can supply liquid into the horizontal pipe 605 while the horizontal pipe 605 rotates normally, and the coolant will not leak under the sealing effect of the sealing disc 18 and the annular sealing groove 17.

[0039] The working principle of this rapid cooling structure for cold stamping dies:

[0040] In use, the operator places the sheet metal between the upper mold 4 and the lower mold 5. Then, the operator starts the hydraulic cylinder 3, causing its output end to move the upper mold 4. Under the combined action of the upper mold 4 and the lower mold 5, the sheet metal is stamped and formed. After the upper mold 4 and the lower mold 5 have stamped the sheet metal, the operator controls the upper mold 4 to reset and then removes the formed part. The operator then starts the first motor 608, causing its output shaft to drive the lead screw 607 to rotate. The rotating lead screw 607 drives the slider 603 to move along the slide groove 602 by screwing in. At the same time, the operator pours coolant into the horizontal tube 605, so that the coolant is sprayed onto the surface of the upper mold 4 and the lower mold 5 through the nozzle 606, thereby rapidly cooling them and preventing the upper mold 4 and the lower mold 5 from overheating and causing wear.

[0041] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. Any obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.

Claims

1. A quick cooling structure of a cold stamping die comprising a base (1), characterized in that: A right-angle frame (2) is fixedly installed on one side of the upper surface of the base (1), and a hydraulic cylinder (3) is fixedly installed on the upper surface of the right-angle frame (2). The output end of the hydraulic cylinder (3) passes through the right-angle frame (2) and is fixedly installed with an upper mold (4). A lower mold (5) is fixedly installed on the other side of the upper surface of the base (1). The upper surface of the base (1) near the right-angle frame (2) is provided with a cooling assembly (6) for cooling the upper mold (4) and the lower mold (5).

2. The rapid cooling structure of a cold stamping die according to claim 1, characterized in that: The cooling assembly (6) includes a support base (601), which is fixedly installed on the upper surface of the base (1) near the right-angle frame (2). A groove (602) is provided on the upper surface of the support base (601), and a slider (603) is slidably arranged in the groove (602). A stand (604) is fixedly installed on the upper surface of the slider (603). Two horizontal pipes (605) are provided at one end of the stand (604), and several nozzles (606) are fixedly installed on the body of each of the two horizontal pipes (605). A lead screw (607) is rotatably installed between the two sides of the inner wall of the slide groove (602), and a first motor (608) is fixedly installed on one side of the support base (601). One end of the lead screw (607) passes through the support base (601) and is fixedly connected to the output shaft end of the first motor (608).

3. The rapid cooling structure for a cold stamping die according to claim 2, characterized in that: Two movable grooves (7) are opened on one side surface of the upright frame (604). Limiting grooves (8) are opened through both sides of the inner wall of the two movable grooves (7). A movable block (9) is slidably arranged in the adjacent limiting grooves (8). The two horizontal tubes (605) are respectively rotatably installed through and on one side of the corresponding movable block (9).

4. The rapid cooling structure for a cold stamping die according to claim 3, characterized in that: A vertical plate (10) is fixedly installed on the upper surface of the base (1) near the lower mold (5), and two composite guide grooves (11) are opened through one side surface of the vertical plate (10). The two horizontal tubes (605) are fitted with connecting sleeves (12), and the two connecting sleeves (12) are respectively slidably disposed in the corresponding composite guide grooves (11).

5. The rapid cooling structure for a cold stamping die according to claim 4, characterized in that: Two through slots (13) are opened through one side of the inner wall of the two moving slots (7). The two moving blocks (9) are fixedly installed with mounting brackets (14) on the side near the through slots (13). The two mounting brackets (14) are fixedly installed with second motors (15) on one side. The output shaft ends of the two second motors (15) pass through the corresponding mounting brackets (14) and are fixedly connected to the horizontal tube (605).

6. The rapid cooling structure for a cold stamping die according to claim 5, characterized in that: An annular sealing plate (16) is fixedly installed at the opening of each of the two horizontal pipes (605). An annular sealing groove (17) is opened on the inner wall surface of each of the two annular sealing plates (16). A sealing disc (18) is movably arranged in each of the two annular sealing grooves (17). A water inlet pipe (19) is fixedly installed through one side of each of the two sealing discs (18).