Powder metallurgical forming die
The heating device, which combines a motor-driven threaded rod and a limiting rod, achieves uniform heating of powder metallurgy forming molds, solving the problem of uneven heating in existing molds and improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- GUANGDONG CHUANYUAN PRECISION MOULD CO LTD
- Filing Date
- 2025-09-25
- Publication Date
- 2026-07-24
AI Technical Summary
Existing powder metallurgy molding dies cannot achieve uniform heating and uniform heating of powder for die casting, resulting in low production efficiency and unstable product quality.
The uniform heating device, which combines a motor-driven threaded rod, threaded sleeve, limiting rod, and heater, achieves positional accuracy and uniform heat distribution during the heating process by precisely controlling the movement range of the heater. Combined with the design of the hollow plate and forming groove, it ensures the stability and accuracy of the heating process.
It achieves uniform heating in the powder metallurgy forming process, improves production efficiency and product quality, reduces scrap rate, and extends equipment service life.
Smart Images

Figure CN120984880B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of molding die technology, specifically to a powder metallurgy molding die. Background Technology
[0002] Forming dies are tools used to produce various workpieces. They process raw materials into the required shapes and sizes through specific processing techniques. Forming dies are widely used in various industries, especially in manufacturing. Products such as automobiles, home appliances, electronic products, and daily necessities all rely on dies. They are primarily used in metal casting processes, particularly suitable for metals such as aluminum, zinc, and copper. Molten metal is poured into a die and cooled under high pressure to form the shape. This method is often used to manufacture complex metal parts, such as automotive engine parts and electronic product casings. It is also used for extrusion molding of materials such as plastics and rubber. Raw materials are heated and forced out, then cooled and shaped in a die. Common products include pipes and profiles. The design and manufacture of forming dies are crucial to production efficiency and product quality. High-quality dies can improve production efficiency, reduce scrap rates, shorten production cycles, and thus lower production costs. In short, forming dies play a vital role in modern manufacturing and are indispensable key tools in industrial production.
[0003] A powder metallurgy forming die (publication number: CN116727667B) disclosed includes a die body, and a lubricant application device is provided at the upper die punch of the die body. The lubricant application device includes an application strip, a drive module, and a lubricant spraying module. The application strip is annular and sleeved on the upper die punch. The inner surface of the application strip can contact the outer wall of the upper die punch. The lubricant spraying module is located inside the application strip. This invention, by providing a corresponding lubricant application device at the upper die punch, can apply lubricant to the surface of the upper die punch during the pressing process, thereby greatly reducing the frictional loss between the upper die punch and the female die.
[0004] The components of the mold body, drive module, and lubricant spraying module in the above application work together to reduce frictional loss between the upper die and the female die, but they cannot achieve the effect of uniformly heating and die-casting powder. Therefore, we propose a powder metallurgy forming mold. Summary of the Invention
[0005] This invention proposes a powder metallurgy forming mold.
[0006] The technical solution of the present invention is as follows: a powder metallurgy forming mold includes a base, a support frame is fixedly connected to the top of the base, a die casting machine is slidably connected to the side of the support frame, a switch is fixedly connected to the side of the die casting machine, and a uniform heating device is provided on the top of the base.
[0007] The uniform heating device includes a fixed plate, the bottom of which is fixedly connected to the top of a base. A motor is fixedly connected to the side of the fixed plate, and a threaded rod is fixedly connected to the output shaft of the motor. A threaded sleeve is threaded onto the circumferential surface of the threaded rod. A groove is formed on the top of the base, and a perforated plate is fixedly connected to the inner side of the groove. A limit rod is fixedly connected to the side of the fixed plate, and a connecting rod is fixedly connected to the circumferential surface of the threaded sleeve. A heater is fixedly connected to one end of the connecting rod. The main function of this uniform heating device is to use the motor to drive the threaded rod, threaded sleeve, and connecting rod in a coordinated manner, allowing the heater to move within a set range, thereby achieving uniform heating. This design ensures positional accuracy and uniform heat distribution during the heating process. This is achieved through the cooperation of components such as the motor, threaded rod, threaded sleeve, limit rod, and heater. When the motor is started, it drives the threaded rod to rotate. The rotation of the threaded rod causes the threaded sleeve to move horizontally under the restriction of the limit rod. The horizontal movement of the threaded sleeve causes the connecting rod to move horizontally within the groove. The horizontal movement of the connecting rod causes the heater to move horizontally, and the horizontal movement of the heater uniformly heats the forming tank. This design ensures precise positioning and uniform heat distribution during the heating process.
[0008] The circumferential surface of the threaded sleeve is slidably connected to the circumferential surface of the limiting rod. The function of the slidable connection between the threaded sleeve and the limiting rod is to ensure that the uniform heating device can stably, accurately, and uniformly heat the target object by precisely controlling the movement range of the threaded sleeve, and to increase the durability and flexibility of the mechanical device.
[0009] The top of the perforated plate is slidably connected to a forming groove. The main function of the forming groove slidably connected to the top of the perforated plate is to provide stable guidance, flexibility in adjustment, support, and reduce friction for the device, thereby improving the device's working accuracy, stability, and service life.
[0010] The bottom of the forming tank is located on the displacement trajectory of the heater. This design, where the bottom of the forming tank is positioned on the heater's displacement trajectory, primarily serves to provide the heater with a precise movement trajectory and stable guidance, ensuring the uniformity and stability of the heating process and optimizing the long-term performance of the equipment.
[0011] The forming tank is located directly below the die-casting machine. This design, with the forming tank positioned directly below the die-casting machine, primarily serves to accommodate and support the metal flow, guide its movement, and improve alignment accuracy, thereby ensuring the smooth progress of the die-casting process and the stability of product quality.
[0012] The threaded rod has a moving device on its circumferential surface, which includes a gear. The circumferential surface of the gear is fixedly connected to the circumferential surface of the threaded rod. A toothed rod is slidably connected to the top of the base, and a push rod is fixedly connected to one end of the toothed rod. A sliding groove is formed on the side of the base, and a water tank is slidably connected to the inner side of the sliding groove. A fixing groove is formed on the inner side of the sliding groove, and a fixing block is fixedly connected to the side of the water tank. A slot is formed on the top of the fixing block, and a pin is slidably connected to the inner side of the slot. A water outlet is provided on the side of the water tank, and a rubber stopper is inserted into the top of the water outlet. This design is intended to use the threaded rod to drive the gear transmission, pushing the formed tank, which has undergone high-temperature die casting, into the water tank for rapid cooling, thus achieving rapid forming.
[0013] The gear meshes with the rack, and a perforated box is fixedly connected to the inner side of the water tank. This design allows the gear to drive the rack in linear motion, thereby controlling the action of the push rod. The perforated box may help improve the efficiency of heat exchange. The perforated structure can increase the contact area between water and air, promoting heat dissipation or absorption by the water, thus optimizing the heating or cooling process.
[0014] The top of the hollow box is located on the displacement trajectory of the forming groove, and there is a gap between the bottom of the hollow box and the inner bottom of the water tank. This design is likely primarily to improve the stability, durability, and ease of operation of the equipment, while ensuring that the equipment can operate efficiently and safely.
[0015] A uniform cooling device is installed on the side of the water tank. This device includes a rotating shaft that extends through and connects to the side of the water tank. One end of the shaft is fixedly connected to a stirring blade. The combination of the stirring blade and the rotating shaft, as part of the uniform cooling device, promotes the circulation, mixing, and flow of the coolant within the water tank. This not only ensures the temperature uniformity of the coolant but also improves heat exchange efficiency, reduces the accumulation of impurities, and helps maintain the long-term efficient operation of the cooling system. It avoids problems such as uneven temperature and poor cooling effect, thereby ensuring the safety and stability of the equipment.
[0016] A rotating handle is fixedly connected to the circumference of the rotating shaft, and there is a gap between the side of the stirring blade and the bottom inner side of the water tank. The rotating handle allows for manual operation of the stirring blade, while the gap between the stirring blade and the bottom of the water tank ensures smooth operation of the stirring device, reduces wear, friction, and energy consumption, prevents coolant stagnation and sediment accumulation, and optimizes the stirring effect. This design improves the stability, efficiency, and lifespan of the cooling system.
[0017] The working principle and beneficial effects of this invention are as follows: 1. This invention utilizes the coordinated operation of components such as a motor, threaded rod, threaded sleeve, limiting rod, and heater. Starting the motor drives the threaded rod to rotate. This rotation causes the threaded sleeve to move horizontally under the constraint of the limiting rod. The horizontal movement of the threaded sleeve then causes the connecting rod to move horizontally within the groove. This horizontal movement of the connecting rod, in turn, causes the heater to move horizontally, uniformly heating the forming groove. This design ensures positional accuracy and uniform heat distribution during the heating process.
[0018] 2. This invention utilizes the coordinated operation of components such as a motor, threaded rod, gear, rack, and push rod. Starting the motor drives the threaded rod to rotate, which in turn drives the gear to rotate. The gear then drives the meshing rack to move horizontally, which in turn drives the push rod to move horizontally. This horizontal movement of the push rod propels the die-casting forming tank horizontally, allowing it to fall into the hollowed-out box at the top of the water tank. This achieves automated movement, improves work efficiency, and reduces labor.
[0019] 3. In this invention, when the forming tank falls into the hollow box, the operator turns the handle, which drives the rotating shaft to rotate. The rotating shaft then drives the stirring blades to stir the water in the tank. This promotes the circulation, mixing, and flow of the coolant in the tank, ensuring not only the temperature uniformity of the coolant but also improving the heat exchange efficiency.
[0020] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0022] Figure 1 This is a three-dimensional front view of the overall structure of the present invention; Figure 2 This is a three-dimensional side view of the overall structure of the present invention; Figure 3 This is a three-dimensional schematic diagram of the uniform heating device of the present invention; Figure 4 This is a three-dimensional front view of the structure of the mobile device of the present invention; Figure 5 This is a three-dimensional front view of the structure of the uniform cooling device of the present invention; Figure 6 This is a three-dimensional schematic diagram of the side profile structure of the present invention; Figure 7 For the present invention Figure 6 A three-dimensional magnified view of the structure at point A in the middle; Figure 8 This is a front view of the structure of the present invention; Figure 9 For the present invention Figure 8 A 3D magnified view of the structure at point B.
[0023] In the diagram: 1. Base; 2. Support frame; 3. Die-casting machine; 4. Uniform heating device; 5. Moving device; 6. Uniform cooling device; 7. Switch; 41. Fixing plate; 42. Motor; 43. Threaded rod; 44. Threaded sleeve; 45. Groove; 46. Hollow plate; 47. Limiting rod; 48. Connecting rod; 49. Heater; 410. Forming tank; 51. Gear; 52. Tooth rack; 53. Push rod; 54. Sliding groove; 55. Water tank; 56. Hollow box; 57. Fixing groove; 58. Fixing block; 59. Slot; 510. Pin; 511. Outlet; 512. Plug; 61. Rotating shaft; 62. Stirring blade; 63. Rotating handle. Detailed Implementation
[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.
[0025] Example 1 like Figures 1-9 As shown, this embodiment proposes a powder metallurgy forming mold, including a base 1, a support frame 2 fixedly connected to the top of the base 1, a die casting machine 3 slidably connected to the side of the support frame 2, a switch 7 fixedly connected to the side of the die casting machine 3, and a uniform heating device 4 provided on the top of the base 1.
[0026] The uniform heating device 4 includes a fixed plate 41, the bottom of which is fixedly connected to the top of the base 1. A motor 42 is fixedly connected to the side of the fixed plate 41, and a threaded rod 43 is fixedly connected to the output shaft of the motor 42. A threaded sleeve 44 is threadedly connected to the circumferential surface of the threaded rod 43. A groove 45 is formed on the top of the base 1, and a perforated plate 46 is fixedly connected to the inner side of the groove 45. A limit rod 47 is fixedly connected to the side of the fixed plate 41, and a connecting rod 48 is fixedly connected to the circumferential surface of the threaded sleeve 44. A heater 49 is fixedly connected to one end of the connecting rod 48. The main function of this uniform heating device 4 is to use the motor 42 to drive the threaded rod 43, the threaded sleeve 44, and the connecting rod 48 in a coordinated manner, so that the heater 49 can move within a set range, thereby achieving uniform heating. This design ensures the positional accuracy and uniform heat distribution during the heating process.
[0027] The circumferential surface of the threaded sleeve 44 is slidably connected to the circumferential surface of the limiting rod 47. The function of the slidable connection between the threaded sleeve 44 and the limiting rod 47 is to ensure that the uniform heating device 4 can stably, accurately and uniformly heat the target object by precisely controlling the movement range of the threaded sleeve 44, and to increase the durability and flexibility of the mechanical device.
[0028] The top of the perforated plate 46 is slidably connected to a forming groove 410. The main function of the forming groove 410 slidably connected to the top of the perforated plate 46 is to provide stable guidance, adjustment flexibility, support and reduce friction for the device, thereby improving the working accuracy, stability and service life of the device.
[0029] The bottom of the forming tank 410 is located on the displacement trajectory of the heater 49. The main purpose of this design is to provide the heater 49 with a precise movement trajectory and stable guidance, ensuring the uniformity and stability of the heating process, and optimizing the long-term performance of the equipment.
[0030] The forming tank 410 is located directly below the die-casting machine 3. The design of the forming tank 410 being located directly below the die-casting machine 3 mainly serves to accommodate and support, guide the flow of metal, and improve the docking accuracy, thereby ensuring the smooth progress of the die-casting process and the stability of product quality.
[0031] In this embodiment, powder is first added to the forming tank 410. When heating is required inside the forming tank 410, the operator starts the motor 42. The output end of the motor 42 rotates, driving the threaded rod 43 to rotate. The rotation of the threaded rod 43 causes the threaded sleeve 44 to move horizontally under the restriction of the limiting rod 47. The horizontal movement of the threaded sleeve 44 causes the connecting rod 48 to move horizontally in the groove 45. The horizontal movement of the connecting rod 48 causes the heater 49 to move horizontally. The horizontal movement of the heater 49 evenly heats the bottom of the forming tank 410, allowing the metal powder inside the forming tank 410 to rise steadily and melt. When heating is complete, the die-casting machine 3 is started, and the metal powder in the forming tank 410, which has been heated at high temperature, is die-cast into shape.
[0032] Example 2 like Figures 1-9As shown, based on the same concept as in Embodiment 1 above, a moving device 5 is provided on the circumferential surface of the threaded rod 43. The moving device 5 includes a gear 51, the circumferential surface of which is fixedly connected to the circumferential surface of the threaded rod 43. A toothed rod 52 is slidably connected to the top of the base 1, and a push rod 53 is fixedly connected to one end of the toothed rod 52. A sliding groove 54 is provided on the side of the base 1, and a water tank 55 is slidably connected to the inner side of the sliding groove 54. A fixing groove 57 is provided on the inner side of the sliding groove 54. A fixing block 58 is fixedly connected to the side of the water tank 55, and a slot 59 is provided on the top of the fixing block 58. A pin 510 is slidably connected to the inner side of the slot 59. A water outlet 511 is provided on the side of the water tank 55, and a rubber plug 512 is inserted into the top of the water outlet 511. This design is intended to drive the gear 51 through the threaded rod 43 to push the formed groove 410, which has undergone high-temperature die casting, into the water tank 55 for rapid cooling, thus achieving rapid forming.
[0033] Gear 51 meshes with rack 52, and a perforated box 56 is fixedly connected to the inner side of water tank 55. This design allows gear 51 to drive the linear movement of rack 52, thereby controlling the action of push rod 53. Perforated box 56 helps improve heat exchange efficiency. The perforated structure increases the contact area between water and air, promoting heat dissipation or absorption by the water, thus optimizing the heating or cooling process.
[0034] The top of the hollow box 56 is located on the displacement trajectory of the forming tank 410, and there is a gap between the bottom of the hollow box 56 and the inner bottom of the water tank 55. This design is likely primarily to improve the stability, durability, and ease of operation of the equipment, while ensuring that the equipment can operate efficiently and safely.
[0035] A uniform cooling device 6 is provided on the side of the water tank 55. The uniform cooling device 6 includes a rotating shaft 61, which is connected through the side of the water tank 55. One end of the rotating shaft 61 is fixedly connected to a stirring blade 62. The combination of the stirring blade 62 and the rotating shaft 61, as part of the uniform cooling device 6, promotes the circulation, mixing and flow of the coolant in the water tank 55. This not only ensures the temperature uniformity of the coolant but also improves the heat exchange efficiency, reduces the accumulation of impurities, and helps maintain the long-term efficient operation of the cooling system. It avoids problems such as uneven temperature and poor cooling effect, thereby ensuring the safety and stability of the equipment.
[0036] A rotating handle 63 is fixedly connected to the circumferential surface of the rotating shaft 61, and there is a gap between the side of the stirring blade 62 and the bottom of the inner side of the water tank 55. The rotating handle 63 allows the stirring blade 62 to be operated manually, while the gap between the stirring blade 62 and the bottom of the water tank 55 ensures smooth operation of the stirring device, reduces wear, friction, and energy consumption, prevents coolant stagnation and deposit accumulation, and optimizes the stirring effect. This design improves the stability, efficiency, and lifespan of the cooling system.
[0037] In this embodiment, when the die-casting machine 3 completes the die-casting of the powder in the forming tank 410, and the powder needs to be cooled, the operator connects the water tank 55 to the sliding groove 54, adjusts the position of the water tank 55, and inserts the pin 510 into the fixing groove 57 through the slot 59 to fix the position of the water tank 55. The motor 42 is started, and the motor 42 drives the threaded rod 43 to rotate. The rotation of the threaded rod 43 drives the gear 51 to rotate. The rotation of the gear 51 drives the gear 52 meshing with it to move horizontally. The horizontal movement of the gear 52 drives the push rod 53 to move horizontally. The horizontal movement of the push rod 53 pushes the forming tank 410, which has completed die-casting, to move horizontally. The forming tank 410 moves horizontally to the top of the water tank 55 and falls into the hollow box 56. When the forming tank 410 falls into the hollow box 56, in order to ensure that the forming tank 410 cools evenly after die casting, the operator turns the rotating handle 63. The rotation of the rotating handle 63 drives the rotating shaft 61 to rotate, which in turn drives the stirring blade 62 to rotate. The stirring blade 62 stirs the water in the water tank 55, thereby promoting the circulation of water in the water tank 55. This avoids the problems of uneven temperature and poor cooling effect, and prevents the powder in the forming tank after die casting from failing quality inspection, thus ensuring the safety and stability of the equipment.
[0038] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A powder metallurgy forming mold, characterized in that, Includes a base (1), a support frame (2) is fixedly connected to the top of the base (1), a die casting machine (3) is slidably connected to the side of the support frame (2), a switch (7) is fixedly connected to the side of the die casting machine (3), and a uniform heating device (4) is provided on the top of the base (1). The uniform heating device (4) includes a fixing plate (41), the bottom of which is fixedly connected to the top of the base (1), a motor (42) is fixedly connected to the side of the fixing plate (41), a threaded rod (43) is fixedly connected to the output shaft of the motor (42), a threaded sleeve (44) is threadedly connected to the circumferential surface of the threaded rod (43), a groove (45) is provided on the top of the base (1), a hollow plate (46) is fixedly connected to the inner side of the groove (45), a limit rod (47) is fixedly connected to the side of the fixing plate (41), a connecting rod (48) is fixedly connected to the circumferential surface of the threaded sleeve (44), and a heater (49) is fixedly connected to one end of the connecting rod (48). The threaded rod (43) has a moving device (5) on its circumferential surface. The moving device (5) includes a gear (51) which is fixedly connected to the circumferential surface of the threaded rod (43). The base (1) has a toothed rod (52) which is slidably connected to the top. One end of the toothed rod (52) is fixedly connected to a push rod (53). The base (1) has a sliding groove (54) on its side. A water tank (55) is slidably connected to the inner side of the sliding groove (54). A fixing groove (57) is opened on the inner side of the sliding groove (54). A fixing block (58) is fixedly connected to the side of the water tank (55). A slot (59) is opened on the top of the fixing block (58). A pin (510) is slidably connected to the inner side of the slot (59). A water outlet (511) is provided on the side of the water tank (55). A rubber plug (512) is inserted into the top of the water outlet (511). The gear (51) meshes with the rack (52), and a hollow box (56) is fixedly connected to the inner side of the water tank (55). The top of the hollow box (56) is located on the displacement trajectory of the forming groove (410), and there is a gap between the bottom of the hollow box (56) and the inner bottom of the water tank (55). The side of the water tank (55) is provided with a uniform cooling device (6), which includes a rotating shaft (61) that is connected through the side of the water tank (55). One end of the rotating shaft (61) is fixedly connected with a stirring blade (62).
2. The powder metallurgy forming mold according to claim 1, characterized in that, The circumferential surface of the threaded sleeve (44) is slidably connected to the circumferential surface of the limiting rod (47).
3. The powder metallurgy forming mold according to claim 2, characterized in that, The top of the hollow plate (46) is slidably connected to a forming groove (410).
4. A powder metallurgy forming mold according to claim 3, characterized in that, The bottom of the forming tank (410) is located on the displacement trajectory of the heater (49).
5. A powder metallurgy forming mold according to claim 4, characterized in that, The forming tank (410) is located directly below the die-casting machine (3).
6. A powder metallurgy forming mold according to claim 1, characterized in that, A rotating handle (63) is fixedly connected to the circumferential surface of the rotating shaft (61), and there is a gap between the side of the stirring blade (62) and the bottom of the inner side of the water tank (55).
Citation Information
Patent Citations
CN116727667B
CN115635078A
CN120056418A