Powder compacting apparatus

Abstract

The utility model belongs to pressing equipment technical field, concretely relates to a kind of powder pressing forming equipment, including fixed support, hydraulic oil cylinder and forming assembly, fixed support includes top plate and base, hydraulic oil cylinder is set on top plate, the piston rod of hydraulic oil cylinder passes through top plate downward and is equipped with punch head, forming assembly is placed on base, forming assembly includes forming die sleeve and locking device, forming die sleeve includes two half-cylinder mould and a cover, the outside of each half-cylinder mould is provided with three half-ring fixed plate from top to bottom, the front and rear ends of each half-ring fixed plate are provided with connecting sleeve, and bolt hole is opened on connecting sleeve, locking device is set on the outside of forming die sleeve, for the locking and pressure maintaining of the upper and lower ends of forming die sleeve.The device can press dust waste, and keep pressure after pressing to prevent rebound;Forming die sleeve can be split into two half-cylinder moulds, facilitating demolding and unloading.

Description

Technical Field

[0001] This utility model belongs to the field of pressing equipment technology, specifically relating to a powder pressing and molding equipment. Background Technology

[0002] Carbon electrodes are carbonaceous conductive materials made primarily from electrically calcined anthracite, petroleum coke, graphite powder, and coal tar pitch through batching, molding, calcination, and machining. They are a new type of energy-saving and environmentally friendly material that has been gradually promoted and applied since the 21st century. As conductive electrodes for submerged arc furnaces, they can be widely used in the smelting processes of industrial silicon, ferroalloys, calcium carbide, yellow phosphorus, and other metals or non-metals. Carbon electrodes are energy-saving and environmentally friendly products; their use in calcium carbide and ferroalloy submerged arc furnaces can significantly reduce smelting power consumption and pollution, making them a replacement for electrode paste.

[0003] Currently, the roasting process generates a large amount of waste flue gas. After treatment by an electrostatic precipitator, the dust can be captured and collected. This dust mainly contains impurities from the tar, carbon particles, waste asphalt, and other waste materials. Directly discharging this waste would result in material waste. The applicant is considering recycling this dust waste for reuse in the production of carbon electrodes to save materials. However, this dust waste needs to be pressed into shape before roasting to facilitate subsequent processing.

[0004] Therefore, there is an urgent need for a powder pressing and molding equipment to press dust waste materials. Utility Model Content

[0005] To address the aforementioned deficiencies in the existing technology, this utility model provides a powder pressing and molding equipment, including a fixed support, a hydraulic cylinder, and a molding assembly. The fixed support includes a top plate and a base arranged vertically. The hydraulic cylinder is fixedly mounted above the top plate, with its piston rod passing downward through the top plate and a punch head fixedly installed thereon. The molding assembly is placed on the base and includes a molding die sleeve and a mold locking device. The molding die sleeve includes two semi-cylindrical molds arranged horizontally and left-right, and a cover plate on top of the two semi-cylindrical molds. The two semi-cylindrical molds can be combined to form a cylindrical mold. Each semi-cylindrical mold has three semi-annular fixing plates arranged sequentially from top to bottom on its exterior. Each semi-annular fixing plate has connecting sleeves at both ends, and bolt holes are provided on the connecting sleeves. The mold locking device is located outside the molding die sleeve and is used to lock and maintain pressure at both ends of the molding die sleeve.

[0006] Optionally, the mold-locking device includes a base plate and two mold-locking rods. The base plate is circular, and two hinge seats are fixed at the left and right ends of the top surface of the base plate. The two mold-locking rods are respectively set on the outer sides of the two semi-cylindrical molds. The bottom ends of the two mold-locking rods are respectively hinged to the two hinge seats. The top ends of the two mold-locking rods are provided with locking hooks, and the bottom of the two locking hooks is fixed with mounting plates. The opposite sides of the two mounting plates are vertically provided with tightening bolts, and the tightening bolts are threadedly connected to the mounting plates.

[0007] Optionally, the length of the locking rod is greater than the sum of the height of the semi-cylindrical mold and the thickness of the mounting plate.

[0008] Optionally, each of the two semi-cylindrical molds is provided with a limiting plate group on the side near the corresponding locking rod, and the limiting plate group is fixed on the top semi-annular fixing plate. Each limiting plate group includes two limiting plates, and the limiting groove formed between the two limiting plates matches the shape of the locking rod.

[0009] Optionally, a handle is provided on the cover plate.

[0010] Specifically, the handle makes it easy to pick up the cover.

[0011] Optionally, two support columns are fixedly connected between the top plate and the base, and the two support columns are respectively located on the left and right sides of the top plate.

[0012] Optionally, a hydraulic station is provided on the right side of the support column, and the hydraulic station is connected to the hydraulic cylinder via an oil pipe.

[0013] Specifically, the hydraulic station adopts existing technology and is mainly a hydraulic source device or a hydraulic device including control valves, consisting of a hydraulic pump, a drive motor, an oil tank, a directional valve, a throttle valve, and a relief valve. It supplies oil according to the flow direction, pressure, and flow rate required by the hydraulic cylinder. The hydraulic station is connected to the hydraulic cylinder through oil pipes to realize various specified actions.

[0014] This invention also includes other components that enable the normal operation of a powder pressing and molding equipment, all of which are conventional techniques in the field. Furthermore, any devices or components not specified in this invention employ conventional techniques in the field, such as hydraulic cylinders and hydraulic power units.

[0015] The working principle of this utility model is as follows: First, two semi-cylindrical molds are combined into a cylindrical mold, and the corresponding connecting sleeves on the two semi-cylindrical molds are fixed with fixing bolts. After assembly, the locking device is placed on the base of the fixed bracket. Positioning marks can be set on the base to facilitate positioning of the bottom plate of the locking device. Then, the locking rods on both sides are unfolded, and the cylindrical mold is placed on the bottom plate of the locking device. Limit marks can be set on the bottom plate to facilitate positioning of the bottom of the cylindrical mold. After positioning, the prepared powder is poured into the inner cavity of the cylindrical mold. Then, the hydraulic cylinder is controlled to extend the piston rod, thus locking the cylindrical mold... The powder in the mold is pressed. After pressing, the cover plate is placed on top of the cylindrical mold, and the locking rods on both sides are brought closer to the center so that the locking rods can be inserted into the limiting slots between the two limiting plates. At the same time, the locking hooks at the top of the locking rods can be fastened to the cover plate. Then, the tightening bolts are tightened to press down and tighten the cover plate, locking it. In this way, the powder in the cylindrical mold is kept under pressure from the top and bottom ends through the locking rods, the cover plate, and the bottom plate to prevent rebound. After keeping under pressure for a period of time, the tightening bolts are loosened, the locking rods are unfolded, the cover plate is removed, the fixing bolts are removed, and the two semi-cylindrical molds are disassembled to remove the pressed blanks for easy demolding and unloading.

[0016] The beneficial effects of this invention are that, through the fixed bracket, hydraulic cylinder, and forming components, dust waste can be compressed and pressure maintained after compression to prevent rebound. Furthermore, the forming mold sleeve can be disassembled into two semi-cylindrical molds for easy demolding and unloading, facilitating subsequent processing. This secondary utilization of waste not only improves material utilization and saves materials but also reduces costs for enterprises. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the molding component of this utility model.

[0020] Figure 3 This is a schematic diagram of the molding die of this utility model.

[0021] Figure 4 This is a schematic diagram of the mold-locking device of this utility model.

[0022] In the diagram: 1. Fixed bracket, 2. Hydraulic cylinder, 3. Punch head, 4. Hydraulic station, 5. Forming mold sleeve, 6. Mold locking device, 7. Semi-cylindrical mold, 8. Cover plate, 9. Semi-circular fixing plate, 10. Connecting sleeve, 11. Handle, 12. Base plate, 13. Mold locking rod, 14. Hinge seat, 15. Locking hook, 16. Mounting plate, 17. Tightening bolt, 18. Limiting plate. Detailed Implementation

[0023] The present invention will now be clearly described with reference to the accompanying drawings and specific embodiments. This description is merely for explaining the present invention and is not intended to limit it. Any modifications, equivalent substitutions, improvements, etc., made by those skilled in the art based on the embodiments of the present invention without inventive effort to obtain all other embodiments should be included within the protection scope of the present invention.

[0024] Example

[0025] like Figure 1-4 As shown, this utility model embodiment provides a powder pressing and molding equipment, including a fixed support 1, a hydraulic cylinder 2 and a molding component. The fixed support 1 includes a top plate and a base arranged vertically, and two support columns are fixedly connected between the top plate and the base, with the two support columns respectively located on the left and right sides of the top plate.

[0026] The hydraulic cylinder 2 is fixedly installed above the top plate. The piston rod of the hydraulic cylinder 2 passes downward through the top plate and is fixedly installed with the punch head 3.

[0027] In addition, a hydraulic station 4 is provided on the right side of the support column, and the hydraulic station 4 is connected to the hydraulic cylinder 2 through an oil pipe.

[0028] The molding assembly is placed on the base. The molding assembly includes a molding mold sleeve 5 and a mold locking device 6. The molding mold sleeve 5 includes two semi-cylindrical molds 7 arranged on the left and right, and a cover plate 8 arranged on the top of the two semi-cylindrical molds 7. The two semi-cylindrical molds 7 can be combined into a cylindrical mold. Three semi-annular fixing plates 9 are arranged on the outside of each semi-cylindrical mold 7 from top to bottom. Each semi-annular fixing plate 9 has a connecting sleeve 10 at both the front and rear ends, and the connecting sleeve 10 has bolt holes. The cover plate 8 is provided with a handle 11 for easy removal. The mold clamping device 6 is located outside the forming mold sleeve 5. The mold clamping device 6 includes a base plate 12 and two mold clamping rods 13. The base plate 12 is circular. Two hinge seats 14 are fixed at the left and right ends of the top surface of the base plate 12. The two mold clamping rods 13 are respectively located on the outside of the two semi-cylindrical molds 7. The bottom ends of the two mold clamping rods 13 are respectively hinged to the two hinge seats 14. The top ends of the two mold clamping rods 13 are provided with locking hooks 15, and the bottom of the two locking hooks 15 are fixed with mounting plates 16. The opposite sides of the two mounting plates 16 are vertically provided with tightening bolts 17, and the tightening bolts 17 are threadedly connected to the mounting plates 16.

[0029] In addition, the length of the locking rod 13 is greater than the sum of the height of the semi-cylindrical mold 7 and the thickness of the mounting plate 16. Each of the two semi-cylindrical molds 7 is provided with a limiting plate assembly on the side near the corresponding locking rod 13, and the limiting plate assembly is fixed on the top semi-annular fixing plate 9. Each limiting plate assembly includes two limiting plates 18, and the limiting groove formed between the two limiting plates 18 matches the shape of the locking rod 13.

[0030] The working principle of this utility model is as follows: First, two semi-cylindrical molds 7 are combined into a cylindrical mold, and the corresponding connecting sleeves 10 on the two semi-cylindrical molds 7 are fixed with fixing bolts. After assembly, the locking device 6 is placed on the base of the fixed bracket 1. Positioning marks can be set on the base to facilitate positioning of the base plate 12 of the locking device 6. Then, the locking rods 13 on both sides are unfolded, and the cylindrical mold is placed on the base plate 12 of the locking device 6. Limiting marks can be set on the base plate 12 to facilitate positioning of the bottom of the cylindrical mold. After positioning, the prepared powder is poured into the inner cavity of the cylindrical mold. Then, the hydraulic cylinder 2 is controlled to extend the piston rod, thus controlling the powder in the cylindrical mold. After pressing, cover plate 8 is placed on top of the cylindrical mold, and the locking rods 13 on both sides are brought closer to the center so that the locking rods 13 can be inserted into the limiting slots between the two limiting plates 18. At the same time, the locking hooks 15 at the top of the locking rods 13 can be fastened to the cover plate 8. Then, tighten the top bolts 17 to press down and tighten the cover plate 8, locking the cover plate 8. In this way, the powder in the cylindrical mold is kept under pressure from the top and bottom ends through the locking rods 13, the cover plate 8, and the bottom plate 12 to prevent rebound. After keeping under pressure for a period of time, loosen the top bolts 17, unfold the locking rods 13, remove the cover plate 8, remove the fixing bolts, disassemble the two semi-cylindrical molds 7, and take out the pressed blanks for easy demolding and unloading.

[0031] The embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A powder pressing and molding equipment, comprising a fixed support, a hydraulic cylinder, and a molding assembly, characterized in that: The fixed support includes a top plate and a base arranged vertically. A hydraulic cylinder is fixedly mounted above the top plate. The piston rod of the hydraulic cylinder passes downward through the top plate and is fixedly mounted with a punch head. The forming component is placed on the base. The forming component includes a forming mold sleeve and a mold locking device. The forming mold sleeve includes two semi-cylindrical molds arranged horizontally and left and right, and a cover plate set on the top of the two semi-cylindrical molds. The two semi-cylindrical molds can be combined into a cylindrical mold. Three semi-annular fixing plates are arranged sequentially from top to bottom on the outside of each semi-cylindrical mold. Each semi-annular fixing plate has connecting sleeves at both ends, and bolt holes are opened on the connecting sleeves. The mold locking device is set on the outside of the forming mold sleeve and is used to lock and maintain pressure at both ends of the forming mold sleeve.

2. The powder pressing and molding equipment according to claim 1, characterized in that: The mold clamping device includes a base plate and two mold clamping rods. Two hinge seats are fixed at the left and right ends of the top surface of the base plate. The two mold clamping rods are respectively set on the outside of the two semi-cylindrical molds. The bottom ends of the two mold clamping rods are respectively hinged to the two hinge seats. The top of each mold clamping rod is provided with a locking hook, and the bottom of each locking hook is fixed with a mounting plate. The opposite sides of the two mounting plates are vertically provided with tightening bolts, and the tightening bolts are threaded to the mounting plates.

3. The powder pressing and molding equipment according to claim 2, characterized in that: The length of the locking rod is greater than the sum of the height of the semi-cylindrical mold and the thickness of the mounting plate.

4. The powder pressing and molding equipment according to claim 3, characterized in that: Each of the two semi-cylindrical molds has a limiting plate assembly on the side near the corresponding locking rod, and the limiting plate assembly is fixed on the top semi-circular fixing plate. Each limiting plate assembly includes two limiting plates, and the limiting groove formed between the two limiting plates matches the shape of the locking rod.

5. The powder pressing and molding equipment according to claim 4, characterized in that: The cover plate is equipped with a handle.

6. The powder pressing and molding equipment according to claim 5, characterized in that: Two support columns are fixedly connected between the top plate and the base, and the two support columns are located on the left and right sides of the top plate respectively.

7. The powder pressing and molding equipment according to claim 6, characterized in that: A hydraulic station is installed on the right side of the support column, and the hydraulic station is connected to the hydraulic cylinder through an oil pipe.

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