High pressure powder forming servo press apparatus

Abstract

This utility model discloses a high-pressure powder molding servo pressure device, including an operating table, a bottom mold, and an upper mold. A groove is formed at the center of the upper end of the operating table, and the bottom mold is fixedly connected in the groove. Limiting rods are fixedly connected to the four sides of the upper end of the operating table. An upper frame is fixedly connected to the upper end of the limiting rods, and a movable plate is sleeved on the limiting rods. The upper mold is fixedly connected to the center of the bottom end of the movable plate. Auxiliary rods are fixedly connected to the four sides of the upper end of the movable plate, and a top plate is fixedly connected to the upper end of the auxiliary rods. An oil storage tank is fixedly connected to the upper end of the top plate. This utility model supplies hydraulic oil by setting two oil storage tanks, an electric pump, and two oil inlet pipes, which can promote the closing of the upper mold and the bottom mold. Then, a temperature sensor monitors the temperature, a water cooling chamber provides cooling for the hydraulic oil in the return oil pipe, and a filter plate and magnetic rod provide adsorption for impurities in the hydraulic oil, which can improve the heat dissipation effect of the hydraulic oil and improve the operational stability of the high-pressure powder molding machine.

Description

Technical Field

[0001] This utility model relates to the field of high-pressure powder forming and processing technology, specifically to a high-pressure powder forming servo pressure device. Background Technology

[0002] High-pressure powder molding involves feeding powder material into a female mold through a hopper or pipe, then rotating a screw to evenly feed the powder material into a pressing cylinder. Under pressure, the powder is gradually compacted and formed into the desired shape. During this process, an electric pump can convert electrical energy into hydraulic energy, which is then converted into mechanical energy through a hydraulic cylinder or hydraulic motor, enabling precise control of the load. This technology is called electro-hydraulic servo drive technology, which can achieve precise control of hydraulic actuators.

[0003] High-pressure powder forming servo pressure equipment based on electro-hydraulic servo drive technology is an advanced device that combines servo drive technology with high-pressure forming capability. Common EHAs use a closed hydraulic circuit with a small heat dissipation area, which makes them prone to overheating under continuous operation, leading to increased oil temperature and reduced equipment stability. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a high-pressure powder forming servo pressure device to improve the heat dissipation effect of the high-pressure powder servo pressure device based on electro-hydraulic servo drive technology and reduce the decrease in device stability during continuous operation.

[0005] The technical solution adopted by this utility model to solve the technical problem is: a high-pressure powder molding servo pressure device, including an operating table, a bottom mold, and an upper mold. A groove is formed at the center of the upper end of the operating table, and the bottom mold is fixedly connected within the groove. Limiting rods are fixedly connected to all four sides of the upper end of the operating table. An upper frame is fixedly connected to the upper end of each limiting rod. A movable plate is sleeved on the limiting rod. The upper mold is fixedly connected to the center of the bottom end of the movable plate. Auxiliary rods are fixedly connected to all four sides of the upper end of the movable plate. A top plate is fixedly connected to the upper end of each auxiliary rod. An oil tank is fixedly connected to the upper end of the top plate. A controller is fixedly connected to the side of the top plate away from the oil tank. The bottom end of the controller... A hydraulic cylinder is fixedly connected, and the output end of the hydraulic cylinder is fixedly connected to the moving plate. Electric pumps are fixedly connected to both sides of the bottom of the top plate, which is located on both sides of the controller. The input end of the electric pump is connected to the bottom of the oil tank. An oil inlet pipe is fixedly connected to the output end of the electric pump. One end of the oil inlet pipe is connected to the hydraulic cylinder. A return oil pipe is fixedly connected to the bottom side of the hydraulic cylinder. A temperature sensor is fixedly connected to the end of the return oil pipe near the hydraulic cylinder. One end of the return oil pipe is connected to the upper side of the oil tank. An auxiliary return oil pump is fixedly connected to the bottom side of the top plate. The auxiliary return oil pump is connected to the return oil pipe. A cooling chamber is fixedly connected to the upper side of the auxiliary rod. The cooling chamber is located on the bottom side of the top plate.

[0006] As a preferred technical solution of this utility model, a liquid level sensor is fixedly connected to one side of the cooling chamber. The liquid level sensor is a Rada-31 radar liquid level gauge. By setting the liquid level sensor, the water in the cooling chamber can be monitored, and it is convenient to remind personnel.

[0007] As a preferred technical solution of this utility model, through holes are uniformly opened on one side of the cooling cavity, and a first groove is opened on the side of the cooling cavity away from the through holes. An annular frame is fixedly connected in the first groove, and brackets are fixedly connected on both sides of the annular frame. A guide fan is rotatably connected to the bracket. The guide fan provides airflow to facilitate airflow contact with the water, thereby improving the heat dissipation effect.

[0008] As a preferred technical solution of this utility model, the end of the oil tank away from the top plate is fixedly connected to a sealing plate by bolts, a connecting frame is fixedly connected inside the sealing plate, a filter plate is fixedly connected to the bottom end of the connecting frame, the bottom side of the filter plate contacts a limiting frame, and the limiting frame is fixedly connected to the inner wall of the oil tank. By setting the limiting frame, filter plate, connecting frame and sealing plate, it can be disassembled and replaced when opened.

[0009] As a preferred technical solution of this utility model, the inner wall of the oil storage tank is in contact with a baffle plate, the baffle plate is fixedly connected to the connecting frame, and a magnetic rod is fixedly connected to the bottom end of the sealing plate. The magnetic rod is fixedly connected to the baffle plate. By setting the baffle plate, the movement path of the hydraulic oil is increased, and then the magnetic rod adsorbs magnetic wear particles, which can clean the impurities in the hydraulic oil.

[0010] This utility model has the following advantages: by setting up two oil storage tanks, an electric pump and two oil inlet pipes to supply hydraulic oil, it can promote the closing of the upper mold and the bottom mold. Then, the temperature sensor monitors the temperature, the water cooling chamber provides cooling for the hydraulic oil in the return oil pipe, and the filter plate and magnetic rod provide adsorption for impurities in the hydraulic oil, which can improve the heat dissipation effect of the hydraulic oil and improve the equipment operation stability of the high pressure powder molding machine. Attached Figure Description

[0011] Figure 1 This is a front sectional view of a preferred embodiment of the high-pressure powder molding servo pressure device of the present invention.

[0012] Figure 2 This is a side sectional view of the oil storage tank of a high-pressure powder molding servo pressure device according to a preferred embodiment of the present invention.

[0013] Figure 3 This is a side cross-sectional view of the cooling chamber of a high-pressure powder molding servo pressure device according to a preferred embodiment of the present invention.

[0014] Explanation of reference numerals in the attached drawings: 1. Operating platform; 2. Bottom mold; 3. Limiting rod; 4. Upper frame; 5. Moving plate; 6. Upper mold; 7. Auxiliary rod; 8. Top plate; 9. Oil tank; 10. Controller; 11. Hydraulic cylinder; 12. Oil inlet pipe; 13. Electric pump; 14. Oil return pipe; 15. Temperature sensor; 16. Auxiliary oil return pump; 17. Cooling chamber; 18. Liquid level sensor; 19. Sealing plate; 20. Filter plate; 21. Limiting frame; 22. Baffle plate; 23. Magnetic rod; 24. Connecting frame; 25. Annular frame; 26. Guide fan. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Please refer to the following: Figure 1-3 The high-pressure powder molding servo pressure device shown includes an operating table 1, a bottom mold 2, and an upper mold 6. A groove is formed at the center of the upper end of the operating table 1, and the bottom mold 2 is fixedly connected within the groove. The extension of the hydraulic cylinder 11 can drive the moving plate 5 and the upper mold 6 to press down and close with the bottom mold 2. Limiting rods 3 are fixedly connected to all four sides of the upper end of the operating table 1. An upper frame 4 is fixedly connected to the upper end of the limiting rods 3, and a moving plate 5 is sleeved on the limiting rods 3. The upper mold 6 is fixedly connected to the center of the bottom end of the moving plate 5. Auxiliary rods 7 are fixedly connected to all four sides of the upper end of the moving plate 5. The auxiliary rods 7 are used to ensure the stable movement of the moving plate 5 and the upper mold 6. A top plate 8 is fixedly connected to the upper end of the auxiliary rods 7, and an oil tank 9 is fixedly connected to the upper end of the top plate 8. A controller 10 is fixedly connected to the side of the top plate 8 away from the oil tank 9. The controller 10 works by using an electric pump 13 to start and draw hydraulic oil from the oil tank 9, which enters the hydraulic cylinder 11 through the oil inlet pipe 12. Then, the hydraulic cylinder 11 extends, controlling... The movable plate 5 and the upper mold 6 move down to complete the mold closing with the bottom mold 2. A hydraulic cylinder 11 is fixedly connected to the bottom end of the controller 10. The output end of the hydraulic cylinder 11 is fixedly connected to the movable plate 5. Electric pumps 13 are fixedly connected to both sides of the bottom end of the top plate 8 located on the controller 10. The input end of the electric pump 13 is connected to the bottom end of the oil storage tank 9. An oil inlet pipe 12 is fixedly connected to the output end of the electric pump 13. One end of the oil inlet pipe 12 is connected to the hydraulic cylinder 11. A return oil pipe 14 is fixedly connected to the bottom side of the hydraulic cylinder 11. A temperature sensor 15 is fixedly connected to one end of the return oil line 14 near the hydraulic cylinder 11. The temperature sensor 15 monitors the temperature by contacting the hydraulic oil. One end of the return oil line 14 is connected to the upper side of the oil storage tank 9. An auxiliary return oil pump 16 is fixedly connected to the bottom side of the top plate 8. The auxiliary return oil pump 16 is an auxiliary device for long-distance transportation of the return oil line 14. The auxiliary return oil pump 16 is connected to the return oil line 14. A cooling chamber 17 is fixedly connected to the upper side of the auxiliary rod 7. The cooling chamber 17 is located on the bottom side of the top plate 8.

[0017] A liquid level sensor 18 is fixedly connected to one side of the cooling chamber 17. The liquid level sensor 18 is a Rada-31 radar liquid level gauge, which can monitor the liquid level.

[0018] The cooling chamber 17 has through holes evenly distributed on one side, and a first groove is formed on the side of the cooling chamber 17 away from the through holes. An annular frame 25 is fixedly connected in the first groove. A bracket is fixedly connected to both sides of the annular frame 25. A dustproof net is set on the bracket. A guide fan 26 is rotatably connected to the bracket. A drive motor is fixedly connected to one side of the bracket. The output end of the drive motor rotates to drive the guide fan 26 to rotate and drive the airflow to contact the water in the cooling chamber 17, thereby providing heat dissipation for the water.

[0019] Among them, the end of the oil tank 9 away from the top plate 8 is fixedly connected to the sealing plate 19 by bolts. The connecting frame 24 is fixedly connected inside the sealing plate 19. The bottom end of the connecting frame 24 is fixedly connected to the filter plate 20. The bottom side of the filter plate 20 contacts the limit frame 21. The limit frame 21 is fixedly connected to the inner wall of the oil tank 9. The filter plate 20 is made of glass fiber. The filter plate 20 can be removed simultaneously by disassembling the sealing plate 19.

[0020] The inner wall of the oil storage tank 9 is in contact with a baffle plate 22, which is fixedly connected to the connecting frame 24. The bottom end of the sealing plate 19 is fixedly connected to a magnetic rod 23, which is fixedly connected to the baffle plate 22. By setting the magnetic rod 23 to provide an iron material system, and by increasing the hydraulic oil movement path through the baffle plate 22, the filtration effect can be improved.

[0021] It is worth noting that electro-hydraulic servo drive technology also includes a valve body structure, which can improve the stability of equipment operation.

[0022] Working principle: The controller 10 feeds back the parameters to be executed to the two electric pumps 13 and controls the electric pumps 13 to start and drive the hydraulic oil in the oil tank 9 into the hydraulic cylinder 11 through the oil inlet pipe 12. Then the hydraulic oil flows back to the oil tank 9 through the oil return pipe 14. During this process, the temperature sensor 15 provides temperature monitoring of the hydraulic oil in the oil return pipe 14. The water in the cooling chamber 17 and the guide fan 26 work together to improve the contact between the water and the airflow. At the same time, the water provides heat dissipation to the oil return pipe 14. In addition, the baffle plate 22 increases the flow path of the hydraulic oil, and the magnetic rod 23 and the filter plate 20 provide oil filtration. This can extend the maintenance period, increase the stability of equipment use, and the design of two electric pumps 13 can improve the heat dissipation effect.

[0023] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

[0024] All other parts of this utility model that are not described in detail belong to the prior art, and therefore will not be described in detail here.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A high-pressure powder molding servo pressure device, comprising an operating table (1), a bottom mold (2), and an upper mold (6), wherein a groove is provided at the center of the upper end of the operating table (1) and the bottom mold (2) is fixedly connected within the groove, characterized in that, Limiting rods (3) are fixedly connected to the four sides of the upper end of the operating table (1). An upper frame (4) is fixedly connected to the upper end of the limiting rods (3). A movable plate (5) is sleeved on the limiting rods (3). An upper mold (6) is fixedly connected to the center of the bottom end of the movable plate (5). An auxiliary rod (7) is fixedly connected to the four sides of the upper end of the movable plate (5). A top plate (8) is fixedly connected to the upper end of the auxiliary rods (7). An oil tank (9) is fixedly connected to the upper end of the top plate (8). A controller (10) is fixedly connected to the side of the top plate (8) away from the oil tank (9). A hydraulic cylinder (11) is fixedly connected to the bottom end of the controller (10). The output end of the hydraulic cylinder (11) is fixedly connected to the movable plate (5). The bottom end of the top plate (8) is fixed on both sides of the controller (10). An electric pump (13) is connected to the bottom of the oil tank (9). The output end of the electric pump (13) is fixedly connected to an oil inlet pipe (12). One end of the oil inlet pipe (12) is connected to a hydraulic cylinder (11). A return oil pipe (14) is fixedly connected to the bottom of the hydraulic cylinder (11). A temperature sensor (15) is fixedly connected to the end of the return oil pipe (14) near the hydraulic cylinder (11). One end of the return oil pipe (14) is connected to the top of the oil tank (9). An auxiliary return oil pump (16) is fixedly connected to the bottom of the top plate (8). The auxiliary return oil pump (16) is connected to the return oil pipe (14). A cooling chamber (17) is fixedly connected to the top of the auxiliary rod (7). The cooling chamber (17) is located on the bottom of the top plate (8).

2. The high-pressure powder forming servo pressure device as described in claim 1, characterized in that, A liquid level sensor (18) is fixedly connected to one side of the cooling chamber (17). The liquid level sensor (18) is a Radar-31 liquid level gauge.

3. The high-pressure powder forming servo pressure device as described in claim 2, characterized in that, The cooling cavity (17) has through holes evenly opened on one side. The cooling cavity (17) has a first groove on the side away from the through holes. An annular frame (25) is fixedly connected in the first groove. Supports are fixedly connected on both sides of the annular frame (25). A guide fan (26) is rotatably connected on the support.

4. The high-pressure powder forming servo pressure device as described in claim 3, characterized in that, The oil tank (9) is fixedly connected to a sealing plate (19) by bolts at the end away from the top plate (8). A connecting frame (24) is fixedly connected inside the sealing plate (19). A filter plate (20) is fixedly connected to the bottom end of the connecting frame (24). The bottom side of the filter plate (20) contacts a limiting frame (21). The limiting frame (21) is fixedly connected to the inner wall of the oil tank (9).

5. The high-pressure powder forming servo pressure device as described in claim 4, characterized in that, The inner wall of the oil storage tank (9) is in contact with a baffle plate (22), which is fixedly connected to the connecting frame (24). A magnetic rod (23) is fixedly connected to the bottom end of the sealing plate (19), and the magnetic rod (23) is fixedly connected to the baffle plate (22).

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