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CN-224210638-U - Large-diameter isostatic pressing graphite forming die

CN224210638UCN 224210638 UCN224210638 UCN 224210638UCN-224210638-U

Abstract

The application relates to the field of isostatic pressing moulds, and discloses a large-diameter isostatic pressing graphite forming mould which comprises a bottom plate, wherein a mould outer cylinder is fixedly arranged at the top of the bottom plate, the top and the front side of the mould outer cylinder are both of an opening structure, a large-diameter isostatic pressing bottom mould is arranged in the mould outer cylinder, and the top and the bottom of the large-diameter isostatic pressing bottom mould are both of an opening structure. The method has the advantages that vibration force can be periodically generated by knocking the outer side wall of the large-diameter isostatic pressing bottom die, raw materials in the large-diameter isostatic pressing bottom die can be subjected to vibration pretreatment in the process of adding graphite powder into the large-diameter isostatic pressing bottom die, air in the graphite powder can be discharged, the raw materials are distributed more uniformly and compactly, the compactness and uniformity of isostatic pressing graphite forming are improved, vibration force can be transmitted to a graphite product after isostatic pressing is finished, the adhesion between the graphite product and the inner side wall of the large-diameter isostatic pressing bottom die is effectively reduced, and quick and smooth demoulding of the graphite product is facilitated.

Inventors

  • LUO BAOBAO
  • QI QI
  • DENG JI

Assignees

  • 四川瑞得鼎欣新材料有限公司

Dates

Publication Date
20260508
Application Date
20250523

Claims (7)

  1. 1. The utility model provides a major diameter isostatic pressing graphite forming die, its characterized in that, including bottom plate (1), the top fixed mounting of bottom plate (1) has mould urceolus (2), the top and the front side of mould urceolus (2) are the open structure, be provided with major diameter isostatic pressing die (3) in mould urceolus (2), the top and the bottom of major diameter isostatic pressing die (3) are the open structure, the bottom of major diameter isostatic pressing die (3) with the bottom inner wall looks butt of mould urceolus (2), be equipped with vertical groove (4) on the left side inner wall of mould urceolus (2), fixed mounting has axle bed (5) on the bottom inner wall of vertical groove (4), lead screw (6) are installed in the top rotation of axle bed (5), threaded sleeve is equipped with lifter plate (7) on lead screw (6), the right side of lifter plate (7) with the left side top fixed connection of major diameter isostatic pressing die (3), the top left side fixed mounting of mould urceolus (2) has motor (8), a motor (8) with the bottom inner wall looks like vertical vibration mechanism (12) of die (12) is located in the fixed connection of lead screw mandrel (6) to the top of mould urceolus (12), the top of the bottom plate (1) is fixedly provided with a hanging bracket (14), the top of the hanging bracket (14) is fixedly provided with a hydraulic cylinder (15), a large-diameter isostatic pressing upper die (16) is arranged right above the large-diameter isostatic pressing bottom die (3), the bottom of the large-diameter isostatic pressing upper die (16) is of an opening structure, the large-diameter isostatic pressing upper die (16) and the inner diameter of the large-diameter isostatic pressing bottom die (3) are the same in size, the top of the large-diameter isostatic pressing upper die (16) is fixedly provided with a hollow column (17), the bottom end of the hollow column (17) is positioned in the large-diameter isostatic pressing upper die (16), the output shaft end of the hydraulic cylinder (15) is fixedly connected with the top of the hollow column (17), a static pressure plate (18) is arranged in the large-diameter isostatic pressing upper die (16), the outer side wall of the static pressure plate (18) is in sliding sealing contact with the inner side wall of the large-diameter isostatic pressing upper die (16), the hollow column (17) is internally provided with a sliding plate (19), the bottom of the hollow column (17) is fixedly connected with a sliding plate (19), the bottom of the sliding plate (19) is fixedly connected with the top of the hollow column (21), the top of the sliding plate (20) is fixedly provided with the top of the sliding plate (21), the vibration mechanism (12) comprises a swivel (121), A plurality of U-shaped plates (122), a plurality of cross bars (123), a plurality of connecting plates (124), a plurality of springs II (125), a plurality of knocking balls (126), a bearing (127), an outer gear ring (128), The second motor (129) and the gear (1210), the bearing (127) is fixedly installed on the inner side wall of the outer die cylinder (2) and is located below the lifting plate (7), the swivel (121) is installed on the inner side wall of the bearing (127), the U-shaped plates (122) are fixedly installed on the inner side wall of the swivel (121) and distributed in an equidistant annular mode, the cross rods (123) respectively slide through the corresponding U-shaped plates (122), the connecting plates (124) are respectively fixedly installed on one end of the cross rods (123) far away from the large-diameter isostatic pressing bottom die (3), the springs (125) are respectively fixedly installed on the corresponding connecting plates (124), one end of the springs (125) is fixedly connected with the inner side wall of the outer die cylinder (2), the knocking balls (126) are respectively fixedly installed on one end of the cross rods (123) close to the large-diameter isostatic pressing bottom die (3), the knocking balls (126) are respectively connected with the large-diameter isostatic pressing bottom die (3) in a propping mode, the outer side wall (13) is fixedly installed on the outer side wall (13) of the outer die cylinder (127) and is fixedly installed on the inner side wall (13), the gear (1210) is fixedly arranged at the output shaft end of the motor II (129), the gear (1210) is meshed with the outer gear ring (128), a plurality of arc blocks (29) which are distributed annularly at equal intervals are fixedly arranged on the outer side wall of the large-diameter isostatic pressing bottom die (3), and a plurality of arc blocks (29) and a plurality of knocking balls (126) are all located on the same horizontal plane.
  2. 2. The large-diameter isostatic pressing graphite forming die disclosed in claim 1 is characterized in that a guide groove (9) is formed in the right inner wall of the large-diameter isostatic pressing bottom die (3), a vertical guide rod (11) is fixedly arranged in the guide groove (9), a guide plate (10) is sleeved on the vertical guide rod (11) in a sliding manner, and the left side of the guide plate (10) is fixedly connected with the right top of the large-diameter isostatic pressing bottom die (3).
  3. 3. The large-diameter isostatic pressing graphite forming die according to claim 1, wherein a sealing groove (22) is formed in the top of the large-diameter isostatic pressing bottom die (3), a sealing ring I (23) is fixedly arranged at the bottom of the large-diameter isostatic pressing upper die (16), and the sealing ring I (23) is matched with the sealing groove (22).
  4. 4. The large-diameter isostatic pressing graphite forming die according to claim 1, wherein a guide hole is formed in the bottom of the hollow column (17), the bottom end of the upright column (20) penetrates through the guide hole, a second sealing ring is fixedly mounted on the inner wall of the guide hole, and the upright column (20) is in sliding sealing fit with the guide hole through the second sealing ring.
  5. 5. The large-diameter isostatic pressing graphite forming die as claimed in claim 1, wherein a pressure sensor (24) above the static plate (18) is fixedly arranged on one side inner wall of the large-diameter isostatic pressing upper die (16).
  6. 6. The large-diameter isostatic pressing graphite forming die according to claim 1, wherein a one-way air inlet pipe joint (25) and a one-way air outlet pipe joint (26) are fixedly arranged at the top of the large-diameter isostatic pressing upper die (16), the one-way air inlet pipe joint (25) and the one-way air outlet pipe joint (26) are communicated with the inside of the large-diameter isostatic pressing upper die (16), an air inlet hose (27) is fixedly connected to the top end of the one-way air inlet pipe joint (25), and an air exhaust hose (28) is fixedly connected to the top end of the one-way air outlet pipe joint (26).
  7. 7. The large-diameter isostatic pressing graphite forming die according to claim 1, wherein the bottom of the large-diameter isostatic pressing bottom die (3) and the inner wall of the bottom of the outer die cylinder (2) are of smooth surface flat structures.

Description

Large-diameter isostatic pressing graphite forming die Technical Field The application relates to the technical field of isostatic pressing moulds, in particular to a large-diameter isostatic pressing graphite forming mould. Background In the modern industry, large-diameter isostatic graphite is widely applied to the key fields of semiconductor manufacture, photovoltaic industry, nuclear power generation, electric spark machining and the like by virtue of excellent conductivity, high temperature resistance, chemical stability and good machining performance. In the production and manufacturing process of large-diameter isostatic pressing graphite products, a large-diameter isostatic pressing graphite forming die is needed to isostatically press graphite powder into the graphite products. The existing large-diameter isostatic pressing graphite forming die still has at least the following defects in actual use that firstly, the step of pouring graphite powder into the forming die cannot fully remove air in the graphite powder, so that raw materials are unevenly distributed, further the compactness and uniformity of a graphite product are affected, the product performance is reduced, secondly, the step of demolding is finished in isostatic pressing, the adhesion force between the graphite product and the inner wall of the forming die is large, the demolding is difficult, and the graphite product is difficult to take out rapidly and smoothly. Therefore, we propose a large diameter isostatic graphite forming die to solve the above problems. Disclosure of utility model The application aims to provide a large-diameter isostatic pressing graphite forming die which can periodically strike the outer side wall of a large-diameter isostatic pressing bottom die to generate vibration force, and in the process of adding graphite powder into the large-diameter isostatic pressing bottom die, the air in the graphite powder is removed, so that raw materials are distributed more uniformly and compactly, the compactness and uniformity of isostatic pressing graphite forming are improved, and after isostatic pressing is finished, the vibration force can be transmitted to a graphite product, thereby being beneficial to the effect of rapidly and smoothly demoulding the graphite product. The technical aim of the application is realized by the following technical scheme: the large-diameter isostatic pressing graphite forming die comprises a bottom plate, a die outer cylinder is fixedly arranged at the top of the bottom plate, an opening structure is formed at the top and the front side of the die outer cylinder, a large-diameter isostatic pressing bottom die is arranged in the die outer cylinder, the top and the bottom of the large-diameter isostatic pressing bottom die are both in the opening structure, the bottom of the large-diameter isostatic pressing bottom die is propped against the inner wall of the bottom of the die outer cylinder, a vertical groove is formed in the inner wall of the left side of the die outer cylinder, a shaft seat is fixedly arranged on the inner wall of the bottom of the vertical groove, a screw rod is rotatably arranged at the top of the shaft seat, a lifting plate is sleeved on the screw rod in a threaded manner, the right side of the lifting plate is fixedly connected with the top of the left side of the large-diameter isostatic pressing bottom die, a motor I is fixedly arranged at the left side of the top of the die outer cylinder, an output shaft end of the motor I is fixedly connected with the top of the screw rod, a vibration mechanism positioned below the lifting plate is arranged in the die outer cylinder, the vibration mechanism is used for applying vibration force to the large-diameter isostatic pressing bottom die, the top of the bottom plate is fixedly provided with a hanging bracket, the top of the hanging bracket is fixedly provided with a hydraulic cylinder, the right upper side of the large-diameter isostatic pressing bottom die is provided with a large-diameter isostatic pressing upper die, the bottom of the large-diameter isostatic pressing upper die is of an opening structure, the inner diameter size of the large-diameter isostatic pressing upper die is the same as that of the large-diameter isostatic pressing bottom die, the top of the large-diameter isostatic pressing upper die is fixedly provided with a hollow column, the bottom end of the hollow column is positioned in the large-diameter isostatic pressing upper die, the output shaft end of the hydraulic cylinder is fixedly connected with the top end of the hollow column, the large-diameter isostatic pressing upper die is internally provided with a static pressure plate, the outer side wall of the static pressure plate is in sliding sealing contact with the inner side wall of the large-diameter isostatic pressing upper die, a sliding plate is in sliding connection with the hollow column, the bottom of the sliding plate is fixedly pro