A stamping cooling device

Abstract

This utility model discloses a stamping forming cooling device, relating to the field of metal stamping forming technology. The device includes a base, a stamping table, support rods, a top plate, a stamping plate, and a stamping machine. An upper die is mounted on the stamping table, and a lower die is mounted at the lower end of the stamping plate. Innovatively, pistons are connected by round rods on both sides of the lower end of the stamping plate, cooperating with coolant cylinders on both sides of the stamping table. The stamping action itself drives the pistons to reciprocate, forcing the coolant to circulate within the delivery pipes. When the coolant flows past the heat-conducting plate attached to the bottom of the lower die, it absorbs heat from the mold, and after being cooled by a refrigerator, it flows back, forming a closed-loop cooling system. This device requires no external power source and has the advantages of compact structure, good sealing, low energy consumption, and low maintenance costs, effectively solving the problems of traditional cooling devices that rely on external power and have complex structures.

Description

Technical Field

[0001] This utility model relates to the field of metal stamping technology, specifically a stamping cooling device. Background Technology

[0002] Stamping cooling devices are used to rapidly cool dies or workpieces during the stamping process of sheet metal, thereby improving production efficiency, enhancing workpiece forming quality, and preventing die damage due to overheating. In continuous stamping operations, the die's constant contact with high-temperature materials accumulates a large amount of heat; effective cooling is crucial for ensuring production continuity and product consistency.

[0003] A utility model patent with publication number CN219188277U discloses a cooling device for an aluminum forming mold, including a base and a support plate. A buffer mechanism is provided above the base, a cylinder is mounted above the support plate, a limit plate is mounted below the support plate, and a mold extrusion plate is fixedly connected to the bottom surface of the limit plate. A mold groove is formed inside the base, and a mounting plate is fixedly connected to the outer surface of the base. A cooling mechanism is located above the mounting plate. This prior art achieves cooling by driving coolant circulation through a fan and a water pump. However, this cooling mechanism requires an additional power unit (such as a fan and water pump), which not only increases energy consumption and maintenance costs but also makes its structure relatively complex. Furthermore, an open coolant circulation system or a non-sealed design may lead to coolant contamination of the environment, requiring frequent replacement, increasing operating costs and inconvenience. Therefore, a stamping forming cooling device is proposed. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a stamping cooling device that utilizes the power of the stamping action itself to drive coolant circulation, has a compact structure and good sealing performance, and solves the problems of existing cooling devices relying on external power, having complex structures, and high maintenance costs.

[0006] (II) Technical Solution

[0007] To achieve the aforementioned objectives of utilizing the power of the stamping action to drive coolant circulation, and achieving a compact structure and good sealing performance, this utility model provides the following technical solution:

[0008] A stamping and cooling device includes a base, a stamping table is fixedly installed on the upper end of the base, and support rods are provided at the four corners of the base. A top plate is fixed to the upper end of the support rods and a stamping plate is slidably connected to them. An upper die is provided on the stamping table, a lower die is provided at the lower end of the stamping plate, and a stamping machine that can push the stamping plate to slide up and down is provided at the upper end of the top plate.

[0009] Both sides of the lower end of the stamping plate are vertically fixed with round rods, and each round rod is connected to a piston at its lower end. Coolant cylinders are also provided on the left and right sides of the stamping table. The pistons move in the coolant cylinders and do not leak.

[0010] Both coolant cylinders are independently connected to circulating infusion pipes. The two ends of the infusion pipes are respectively connected to the coolant cylinders on the upper and lower sides of the piston. A heat-conducting plate fitted to the bottom of the lower mold is sleeved in the middle section of the infusion pipe. A cooler is provided on the side of each coolant cylinder.

[0011] The two infusion tubes located inside the heat-conducting plate are both arranged in a curved pattern and are arranged to cross each other.

[0012] The heat-conducting plate includes an outer shell and several internal support columns, which are evenly arranged on the adjacent sides of the infusion tube.

[0013] The cooler is a semiconductor refrigeration chip or a compressor refrigeration unit.

[0014] The infusion tube is made of copper or aluminum alloy.

[0015] The heat-conducting plate and the outer wall of the coolant cylinder are both made of aluminum alloy, and the heat-conducting plate is filled with thermal grease.

[0016] A sealing ring is installed at the contact point between the piston and the inner wall of the coolant cylinder.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, this utility model provides a stamping cooling device, which has the following features:

[0019] Beneficial effects:

[0020] This stamping cooling device connects a round rod and a piston to the stamping plate, which then engages with a coolant cylinder. The stamping press drives the stamping plate up and down, simultaneously causing the piston to reciprocate within the coolant cylinder. This eliminates the need for an external power source, allowing the coolant to circulate within the delivery pipe. As the coolant flows past a heat-conducting plate attached to the bottom of the lower die, it absorbs heat from the mold and is then cooled by a chiller, forming a closed-loop automatic cooling cycle that significantly reduces energy consumption and maintenance costs. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the planar arrangement of the heat-conducting plate and the infusion tube inside it in this utility model.

[0023] In the diagram: 1. Base; 2. Stamping table; 3. Lower die; 4. Support rod; 5. Top plate; 6. Stamping machine; 7. Stamping plate; 8. Upper die; 9. Round rod; 10. Piston; 11. Coolant cylinder; 12. Infusion pipe; 13. Heat-conducting plate; 14. Refrigerator; 1301. Outer shell; 1302. Support column. Detailed Implementation

[0024] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0025] Please see Figure 1-2 A stamping and forming cooling device includes a base 1, a stamping table 2 fixedly installed on the upper end of the base 1, and support rods 4 provided at the four corners of the base 1. A top plate 5 is fixedly fixed to the upper end of the support rods 4 and a stamping plate 7 is slidably connected to them. An upper die 8 is provided on the stamping table 2, a lower die 3 is provided at the lower end of the stamping plate 7, and a stamping machine 6 is provided on the upper end of the top plate 5 to push the stamping plate 7 to slide up and down. Round rods 9 are also vertically fixed on both sides of the lower end of the stamping plate 7. A piston 10 is connected to the lower end of each round rod 9. Cooling liquid cylinders 11 are also provided on the left and right sides of the stamping table 2. The pistons 10 move in the cooling liquid cylinders 11 and do not leak. The two cooling liquid cylinders 11 are independently connected to circulating liquid delivery pipes 12. The two ends of the liquid delivery pipes 12 are respectively connected to the cooling liquid cylinders 11 on the upper and lower sides of the pistons 10. A heat-conducting plate 13 fitted to the bottom of the lower die 3 is sleeved in the middle section of the liquid delivery pipes 12. Coolers 14 are provided on the sides of the cooling liquid cylinders 11.

[0026] It should be noted that the piston 10 is rigidly connected to the stamping plate 7 via the round rod 9. Its core function is to directly convert the vertical linear motion of the stamping press 6 into the reciprocating motion of the piston 10 within the coolant cylinder 11. This ingenious linkage design allows the coolant to be driven entirely by the main power of the stamping process itself, eliminating the need for additional power devices such as motors or water pumps. This fundamentally simplifies the structure and achieves efficient energy utilization and zero additional energy consumption.

[0027] It should be further noted that this device is suitable for slow-stroke presses 6, but not for high-stroke presses 6. In addition, the volume of the coolant cylinder 11 and the diameter of the liquid delivery pipe 12 of this device need to be reasonably designed to ensure that the coolant in the liquid delivery pipe 12 located in the heat-conducting plate 13 circulates once after the upper die 8 completes one stroke, so that the coolant in the liquid delivery pipe 12 located in the heat-conducting plate 13 always maintains a low temperature, thereby cooling the lower die 3 and achieving the purpose of cooling the press.

[0028] In this embodiment, the two infusion pipes 12 are wound in a curved shape and arranged in a cross pattern inside the heat-conducting plate 13. The purpose is to maximize the length and surface area of ​​the pipes flowing through the heat-conducting plate 13. This layout allows the coolant to exchange heat more fully and evenly with the heat-conducting plate 13, greatly improving the heat dissipation efficiency per unit time and ensuring that the heat of the mold can be quickly and effectively removed, thereby coping with the high heat load generated by continuous stamping.

[0029] In this embodiment, the several uniformly arranged support columns 1302 inside the heat-conducting plate 13 not only serve to support and fix the complexly coiled infusion tube 12, preventing it from deforming or shifting due to liquid flow impact or temperature changes, but more importantly, these support columns 1302 themselves are also excellent heat conduction paths, which can conduct heat from the outer shell 1301 to the inner wall of the infusion tube 12 more quickly, thereby enhancing the overall heat conduction performance.

[0030] In this embodiment, a semiconductor refrigeration chip or a compressor refrigeration unit is selected as the cooler 14 because of its high efficiency in actively and forcibly cooling the coolant. They can continuously and rapidly cool the heated coolant that has absorbed heat from the mold and flows back to the set temperature, providing a low-temperature working fluid for the next cycle, thus ensuring the continuous cooling capacity and stability of the cooling system.

[0031] In this embodiment, the infusion tube 12 is made of materials with extremely high thermal conductivity, such as copper or aluminum alloy, to minimize thermal resistance. These materials can quickly transfer the heat absorbed from the heat-conducting plate 13 to the coolant flowing inside the tube, reducing energy loss during heat transfer and serving as a key foundation for ensuring efficient heat exchange throughout the system.

[0032] In this embodiment, the heat-conducting plate 13 and the outer shell of the coolant cylinder 11 are made of aluminum alloy, which takes into account its excellent thermal conductivity, structural strength, and lightweight requirements. Thermal grease is filled inside the heat-conducting plate 13 to eliminate microscopic thermal barriers such as air gaps between the infusion tube 12 and the outer shell 1301 of the heat-conducting plate 13, ensuring that heat can be transferred unimpeded from one component to another, further improving the system's thermal conductivity.

[0033] In this embodiment, the installation of a sealing ring at the contact point between the piston 10 and the inner wall of the coolant cylinder 11 is a core measure to ensure the sealing performance of the entire hydraulic circulation system. It effectively prevents coolant leakage or the intrusion of external contaminants during the high-pressure reciprocating motion of the piston 10, ensuring the reliability of the system operation, avoiding coolant loss and contamination, extending the coolant's service life, and reducing maintenance frequency and costs.

[0034] In summary, this stamping cooling device connects the round rod 9 and piston 10 to the stamping plate 7, which then cooperates with the coolant cylinder 11. When the stamping press 6 drives the stamping plate 7 up and down, it simultaneously drives the piston 10 to reciprocate within the coolant cylinder 11. This allows the coolant to circulate within the delivery pipe 12 without requiring an additional power source. The coolant absorbs heat from the mold as it flows past the heat-conducting plate 13 attached to the bottom of the lower mold 3, and then flows through the cooler 14 for further cooling, forming a closed-loop automatic cooling cycle that significantly reduces energy consumption and maintenance costs.

[0035] Working Principle: When the stamping press 6 drives the stamping plate 7 downward, the piston 10 is simultaneously pushed downward in the coolant cylinder 11 by the round rods 9 on both sides, forcing the coolant in the cylinder to flow in the positive direction through the inlet pipe 12 to the heat-conducting plate 13. When the stamping plate 7 rises, the piston 10 rises accordingly, creating a negative pressure, which drives the coolant to flow in the opposite direction to the heat-conducting plate 13. During this process, when the coolant flows through the heat-conducting plate 13 that is tightly attached to the bottom of the lower die 3, it efficiently absorbs the heat accumulated in the die through the copper inlet pipe 12. The heated coolant continues to flow to the coolant cylinder 11 and is forced to cool to the working temperature through the semiconductor cooling chip on the side, thus forming a closed loop. The specially designed cross-flow channel layout greatly extends the residence time of the coolant in the heat-conducting plate 13. Combined with the filling of thermal grease and the auxiliary heat conduction of the aluminum alloy support column 1302, it ensures that the heat is quickly dissipated in each stamping cycle, ultimately achieving efficient and continuous cooling without the need for an external power source.

[0036] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A stamping and forming cooling device, comprising a base, characterized in that: The upper end of the base is fixedly installed with a stamping table, and support rods are provided at its four corners. The upper ends of the support rods are all fixed with a top plate, and a stamping plate is slidably connected to them. An upper die is provided on the stamping table, a lower die is provided at the lower end of the stamping plate, and a stamping machine that can push the stamping plate to slide up and down is provided at the upper end of the top plate. Both sides of the lower end of the stamping plate are vertically fixed with round rods, and each round rod is connected to a piston at its lower end. Coolant cylinders are also provided on the left and right sides of the stamping table. The pistons move in the coolant cylinders and do not leak. Both coolant cylinders are independently connected to circulating infusion pipes. The two ends of the infusion pipes are respectively connected to the coolant cylinders on the upper and lower sides of the piston. A heat-conducting plate fitted to the bottom of the lower mold is sleeved in the middle section of the infusion pipe. A cooler is provided on the side of each coolant cylinder.

2. The stamping and forming cooling device according to claim 1, characterized in that: The two infusion tubes located inside the heat-conducting plate are both arranged in a curved pattern and are arranged to cross each other.

3. The stamping and forming cooling device according to claim 2, characterized in that: The heat-conducting plate includes an outer shell and several internal support columns, which are evenly arranged on the adjacent sides of the infusion tube.

4. The stamping and forming cooling device according to claim 1, characterized in that: The cooler is a semiconductor refrigeration chip or a compressor refrigeration unit.

5. The stamping and forming cooling device according to claim 1, characterized in that: The infusion tubing is made of copper or aluminum alloy.

6. The stamping and forming cooling device according to claim 1, characterized in that: The heat-conducting plate and the outer wall of the coolant cylinder are both made of aluminum alloy, and the heat-conducting plate is filled with thermal grease.

7. The stamping and forming cooling device according to claim 1, characterized in that: A sealing ring is fitted at the contact point between the piston and the inner wall of the coolant cylinder.

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