A skin feed assembly for isostatic pressing
Patent Information
- Application Number
- CN202521759499.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-19
- Publication Date
- 2026-08-21
- Estimated Expiration
- 2035-08-19
AI Technical Summary
[0004]本实用新型的目的在于提供一种等静压一次成型抽真空用皮套进料组件,以解决上述背景技术中提到的进料过程中皮套与进料结构的密封配合性差,易导致空气混入,而且进料通道无导向结构,皮套进料时易出现卡顿,影响效率,并且各部件不可独立拆卸连接,不便于维护和更换,适用性不佳的问题
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This isostatic pressing one-time molding vacuum sleeve feeding assembly can efficiently seal the feeding seat, isostatic pressing equipment, feeding pipe, and sealing guide sleeve through an elastic sealing layer, sealing groove, sealing block, O-ring, and annular sealing groove, improving the sealing performance during sleeve feeding and reducing air mixing. Moreover, the spiral guide groove and guide convex strip can guide the feeding, reducing the sleeve feeding resistance and improving the feeding efficiency. Furthermore, the first fixing bolt, telescopic groove, positioning insert, connecting spring, locking buckle groove, positioning slot, locking buckle, feeding end, threaded port, flange, mounting slot, and second fixing bolt can quickly and independently disassemble and assemble the components, facilitating maintenance and replacement.
Smart Images

Figure CN224660185U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of isostatic pressing equipment, specifically a leather sleeve feeding assembly for vacuuming in one-time isostatic pressing. Background Technology
[0002] Isostatic pressing (IPC) is a process that uses a liquid medium to transmit pressure, causing materials to be molded under uniform pressure in all directions. It is widely used in ceramics, powder metallurgy, and other fields. In IPC, the material is typically loaded into an elastic sleeve (such as a rubber sleeve), which is then placed into the high-pressure cylinder of the IPC equipment for pressing. To ensure molding quality, the sleeve must be vacuumed after feeding to prevent residual air from affecting the molding effect.
[0003] The existing feeding process suffers from poor sealing between the sleeve and the feeding structure, which easily leads to air ingress. Furthermore, the feeding channel lacks a guiding structure, causing jamming during sleeve feeding, which affects efficiency. In addition, the components cannot be independently disassembled and connected, making maintenance and replacement inconvenient and resulting in poor applicability. Therefore, a sleeve feeding assembly for isostatic pressing one-time molding vacuuming is needed to solve the above problems. Utility Model Content
[0004] The purpose of this utility model is to provide a sleeve feeding assembly for isostatic pressing one-time molding vacuuming, so as to solve the problems mentioned in the background art, such as poor sealing fit between the sleeve and the feeding structure during the feeding process, which easily leads to air mixing, and the lack of a guiding structure in the feeding channel, which easily causes jamming when the sleeve is feeding, affecting efficiency, and the inability of each component to be independently disassembled and connected, which makes maintenance and replacement inconvenient and has poor applicability.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a leather sleeve feeding assembly for one-time isostatic pressing vacuuming, comprising a feeding seat, one end of which is connected to a mating end, and the other end of the outer wall of the mating end is fitted and connected to an isostatic pressing device. The inner wall of the feeding seat has a feeding channel with spiral guide grooves. The other side of the inner wall of the feeding seat has a feeding end, with sealing grooves on one edge and the other outer edge of the inner wall of the feeding end. The inner wall of the feeding end has a threaded opening, and the other end of the threaded opening is connected to a feeding pipe. A sealing block is protruding and fixedly connected to one edge of the feeding pipe and one edge of the threaded opening, and the sealing block is fitted and connected to the sealing groove. A flange is fitted and fixedly connected to the outer wall of the mating end, and a second fixing bolt is fitted and connected to the inner wall of the flange. The other end of the outer wall of the mating end has an annular sealing groove, and the inner wall of the annular sealing groove is fitted with distributed... The device includes an O-ring seal. The mating end, O-ring seal, and annular sealing groove are inserted into and connected to a mounting slot. The mounting slot is located on one side of the inner wall of the isostatic pressing equipment. A sealing guide sleeve is fitted onto the outer wall of the feed pipe. An elastic sealing layer is fixedly connected to the inner wall of the sealing guide sleeve. A guide protrusion is fixedly connected to the inner wall of the elastic sealing layer. The elastic sealing layer is closely fitted to the outer wall of the feed pipe. A first fixing bolt is inserted into the edge of the outer wall of the sealing guide sleeve. A positioning slot is protrudingly connected to one side of the sealing guide sleeve. Locking slots are provided on both sides of the positioning slot. Positioning blocks are inserted into the inner wall of the positioning slot. A vacuum tube is fixedly connected between the positioning blocks. An expansion groove is provided on the inner wall of the positioning blocks. A connecting spring is fixedly connected to the inner wall of the expansion groove. A locking block is fixedly connected to one end of the connecting spring. The locking block is inserted into the locking groove. A vacuum pump is connected to the other end of the vacuum tube.
[0006] Preferably, the feed seat is connected to the mounting slot in a double-layer sealed engagement via an O-ring at the mating end, and the mating end is bolted to the isostatic pressing device via a flange and a second fixing bolt.
[0007] Preferably, the feed seat is screwed into the feed tube at the feed end via a threaded port, and the feed seat is double-sealed to the feed tube via a sealing groove and a sealing block.
[0008] Preferably, the sealing guide sleeve is connected to the feed pipe in a close fit through an elastic sealing layer, and the elastic sealing layer is made of silicone. The sealing guide sleeve is bolted to the feed pipe through a first fixing bolt.
[0009] Preferably, the vacuum tube and vacuum pump are connected to the sealing guide sleeve through a positioning plug and a positioning slot in a positioning engagement manner, and the positioning plug is elastically locked and fixedly connected to the positioning slot through a locking groove and a locking block, and the vacuum tube has an integrated valve structure.
[0010] Preferably, the spiral guide pattern extends spirally along the feeding direction on the inner wall of the feeding channel, and the guide protrusion is distributed flush with the inner wall of the feeding pipe inside the sealing guide sleeve.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This isostatic pressing one-time molding vacuum sleeve feeding assembly can efficiently seal the feeding seat, isostatic pressing equipment, feeding pipe, and sealing guide sleeve through an elastic sealing layer, sealing groove, sealing block, O-ring, and annular sealing groove, improving the sealing performance during sleeve feeding and reducing air mixing. Moreover, the spiral guide groove and guide convex strip can guide the feeding, reducing the sleeve feeding resistance and improving the feeding efficiency. Furthermore, the first fixing bolt, telescopic groove, positioning insert, connecting spring, locking buckle groove, positioning slot, locking buckle, feeding end, threaded port, flange, mounting slot, and second fixing bolt can quickly and independently disassemble and assemble the components, facilitating maintenance and replacement. Attached Figure Description
[0012] Figure 1 This is a front view of a leather sleeve feeding assembly for one-time isostatic pressing vacuuming according to this utility model;
[0013] Figure 2 This is a schematic diagram of the internal structure of a leather sleeve feeding assembly for vacuuming in isostatic pressing one-time molding according to this utility model;
[0014] Figure 3 This utility model relates to a leather sleeve feeding assembly for vacuuming in isostatic pressing. Figure 2 Enlarged view of point A in the middle;
[0015] Figure 4 This utility model relates to a leather sleeve feeding assembly for vacuuming in one-step isostatic pressing. Figure 2 Enlarged view at point B in the middle;
[0016] Figure 5 This utility model relates to a leather sleeve feeding assembly for vacuuming in isostatic pressing. Figure 2 Enlarged view at point C;
[0017] Figure 6 This utility model relates to a leather sleeve feeding assembly for vacuuming in one-step isostatic pressing. Figure 2 Enlarged view of point D in the middle.
[0018] In the diagram: 1. Feed seat, 2. Connecting end, 3. Isostatic pressing equipment, 4. Feed pipe, 5. Sealing guide sleeve, 6. Vacuum tube, 7. Vacuum pump, 8. Spiral guide groove, 9. Feed channel, 10. First fixing bolt, 11. Elastic sealing layer, 12. Guide protrusion, 13. Expansion groove, 14. Positioning block, 15. Connecting spring, 16. Locking slot, 17. Positioning slot, 18. Locking block, 19. Feed end, 20. Sealing groove, 21. Sealing block, 22. Threaded port, 23. Flange, 24. Mounting slot, 25. O-ring, 26. Annular sealing groove, 27. Second fixing bolt. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] Please see Figure 1-6This utility model provides a technical solution: a leather sleeve feeding assembly for isostatic pressing one-time molding vacuuming, including a feeding seat 1, a docking end 2, an isostatic pressing device 3, a feeding pipe 4, a sealing guide sleeve 5, a vacuum tube 6, a vacuum pump 7, a spiral guide groove 8, a feeding channel 9, a first fixing bolt 10, an elastic sealing layer 11, a guide protrusion 12, a telescopic groove 13, a positioning insert 14, a connecting spring 15, a locking groove 16, a positioning slot 17, a locking block 18, a feeding end 19, a sealing groove 20, a sealing block 21, a threaded opening 22, a flange 23, a mounting slot 24, an O-ring 25, an annular sealing groove 26, and a second fixing bolt 27. One end of the feeding seat 1 is connected to the docking end 2, and the docking end 2 is externally... The other end of the wall is fitted with an isostatic pressing device 3. The feed seat 1 is connected to the mounting slot 24 on the mating end 2 through an O-ring 25 in a double-layer sealed insertion connection. The mating end 2 is bolted to the isostatic pressing device 3 through a flange 23 and a second fixing bolt 27. This allows for a stable and sealed installation of the feed seat 1 and the isostatic pressing device 3. The feed seat 1 is screwed into the feed pipe 4 in the feed end 19 through a threaded port 22. The feed seat 1 is also double-sealed to the feed pipe 4 through a sealing groove 20 and a sealing block 21. This makes it easy to connect, disassemble, and replace the feed seat 1 and the feed pipe 4, and provides a good sealing effect. The inner wall of the feed seat 1 has a feed channel 9, and the inner wall of the feed channel 9 has a spiral guide pattern. 8. Spiral guide lines 8 extend spirally along the feeding direction on the inner wall of the feeding channel 9. Guide ridges 12 are flush with the inner wall of the feeding pipe 4 inside the sealing guide sleeve 5. This allows the spiral guide lines 8 and guide ridges 12 to assist in guiding the flow, reducing the feeding resistance of the sleeve and improving the feeding efficiency. A feeding end 19 is provided on the other side of the inner wall of the feeding seat 1. A sealing groove 20 is provided on one edge of the inner wall of the feeding end 19 and the outer edge of the other end. A threaded port 22 is inserted and connected to the inner wall of the feeding end 19. The other end of the threaded port 22 is connected to the feeding pipe 4. A sealing block 21 is fixedly connected to one edge of the feeding pipe 4 and one edge of the threaded port 22. The sealing block 21 is inserted and connected to the sealing groove 20. The outer wall of the mating end 2 is fitted. A flange 23 is fixedly connected, and a second fixing bolt 27 is inserted into the inner wall of the flange 23. An annular sealing groove 26 is provided on the other end of the outer wall of the mating end 2, and O-rings 25 are distributed and fitted on the inner wall of the annular sealing groove 26. The mating end 2, O-rings 25, and annular sealing groove 26 are inserted and connected to the mounting slot 24, which is located on one side of the inner wall of the isostatic pressing equipment 3. A sealing guide sleeve 5 is distributed and fitted on the outer wall of the feed pipe 4, and an elastic sealing layer 11 is fixedly connected to the inner wall of the sealing guide sleeve 5. The sealing guide sleeve 5 is connected to the feed pipe 4 in a close fit through the elastic sealing layer 11, and the elastic sealing layer 11 is made of silicone. The sealing guide sleeve 5 is bolted to the feed pipe 4 by the first fixing bolt 10.This allows the sealing guide sleeve 5 to be installed in close contact with the feed pipe 4 via the elastic sealing layer 11 and the first fixing bolt 10, ensuring stable installation, excellent sealing effect, and convenient independent disassembly and assembly. A guide protrusion 12 is fixedly connected to the inner wall of the elastic sealing layer 11, and the elastic sealing layer 11 is distributed in close contact with the outer wall of the feed pipe 4. The first fixing bolt 10 is inserted and connected to the outer edge of the sealing guide sleeve 5, and a positioning slot 17 is protruding and connected to one side of the sealing guide sleeve 5. Locking slots 16 are provided on both sides of the positioning slot 17, and positioning blocks 14 are inserted and connected to the inner wall of the positioning slot 17. A vacuum tube 6 is fixedly connected between the positioning blocks 14, and the inner wall of the positioning blocks 14... The system includes a telescopic groove 13. The vacuum tube 6 and vacuum pump 7 are connected to the sealing guide sleeve 5 via a positioning block 14 and a positioning slot 17 in a positioning engagement. The positioning block 14 is elastically locked to the positioning slot 17 via a locking groove 16 and a locking block 18. The vacuum tube 6 has an integrated valve structure, allowing for quick insertion and engagement of the vacuum tube 6 and vacuum pump 7, facilitating rapid vacuuming and easy independent disassembly and replacement. A connecting spring 15 is fixedly connected to the inner wall of the telescopic groove 13, with a locking block 18 fixedly connected to one end of the connecting spring 15. The locking block 18 engages with the locking groove 16. The other end of the vacuum tube 6 is connected to the vacuum pump 7.
[0021] Working principle: When using this isostatic pressing one-time forming vacuuming sleeve feeding assembly, firstly, the feeding seat 1 of the device is sealed and installed with the isostatic pressing equipment 3 through the mating end 2, mounting slot 24, O-ring 25, and annular sealing groove 26. Then, it is fixed by the flange 23 and the second fixing bolt 27. Next, the feeding pipe 4 is screwed and sealed to the feeding seat 1 through the feeding end 19, sealing groove 20, sealing block 21, and threaded port 22. Then, the sealing guide sleeve 5 is fitted and connected to the feeding pipe 4 through the elastic sealing layer 11. Finally, it is fixed by the first fixing bolt 10. Bolts are used for fixing. Then, the vacuum tube 6 and vacuum pump 7 are inserted and locked into the sealing guide sleeve 5 through the telescopic groove 13, positioning block 14, connecting spring 15, locking groove 16, positioning slot 17, and locking block 18. Then, the material is fed through the feed tube 4, and pre-vacuuming is performed through the vacuum tube 6 and vacuum pump 7. The material is guided by the spiral guide pattern 8 and guide convex strip 12, which reduces the feeding resistance of the sleeve. When some parts are damaged, they can be disassembled and reassembled independently for maintenance and replacement. This is the usage process of the sleeve feeding assembly for isostatic pressing one-time forming vacuuming.
[0022] It should be noted that this utility model is a leather sleeve feeding assembly for isostatic pressing one-time molding vacuuming. All components are standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Furthermore, all electrical components mentioned above refer to power elements, electrical components, and the matching monitoring computer and power supply connected by wires. The specific connection method should refer to the working principle mentioned above, and the electrical connection between each electrical component should be completed in the order of operation. The detailed connection method is a well-known technology in the field.
[0023] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 sleeve feeding assembly for vacuuming in one-time isostatic pressing, comprising a feeding seat (1), one end of which is connected to a mating end (2), and the other end of the outer wall of the mating end (2) is sleeved and connected to an isostatic pressing device (3), characterized in that: The inner wall of the feed seat (1) is provided with a feed channel (9), and the inner wall of the feed channel (9) is provided with a spiral guide pattern (8). The other side of the inner wall of the feed seat (1) is provided with a feed end (19), and a sealing groove (20) is provided on one edge and the other outer edge of the inner wall of the feed end (19). The inner wall of the feed end (19) is connected with a threaded port (22), and the other end of the threaded port (22) is connected to a feed pipe (4). A sealing block is fixedly connected to one edge of the feed pipe (4) and one edge of the threaded port (22). (21), and the sealing block (21) is inserted into the sealing groove (20). The outer wall of the mating end (2) is fitted with a flange (23), and the inner wall of the flange (23) is fitted with a second fixing bolt (27). The other end of the outer wall of the mating end (2) is provided with an annular sealing groove (26), and the inner wall of the annular sealing groove (26) is fitted with an O-ring (25). The mating end (2), the O-ring (25), the annular sealing groove (26) are inserted into the mounting slot (24), and the mounting slot (24) is provided with an O-ring (25). On one side of the inner wall of the isostatic pressing equipment (3), a sealing guide sleeve (5) is fitted on the outer wall of the feed pipe (4), and an elastic sealing layer (11) is fixedly connected to the inner wall of the sealing guide sleeve (5). A guide protrusion (12) is fixedly connected to the inner wall of the elastic sealing layer (11), and the elastic sealing layer (11) is closely distributed with the outer wall of the feed pipe (4). A first fixing bolt (10) is inserted and connected to the edge of the outer wall of the sealing guide sleeve (5), and a positioning slot (17) is protruding and connected to one side of the sealing guide sleeve (5). The two sides of the positioning slot (17) are connected to the positioning slot (17). A locking groove (16) is provided on the side, and a positioning block (14) is inserted into the inner wall of the positioning slot (17). A vacuum tube (6) is fixedly connected between the positioning blocks (14), and a telescopic groove (13) is provided on the inner wall of the positioning block (14). A connecting spring (15) is fixedly connected to the inner wall of the telescopic groove (13), and a locking block (18) is fixedly connected to one end of the connecting spring (15). The locking block (18) is inserted into the locking groove (16), and a vacuum pump (7) is connected to the other end of the vacuum tube (6).
2. The isostatic pressing one-time molding vacuuming sleeve feeding assembly according to claim 1, characterized in that: The feed seat (1) is connected to the mounting slot (24) in a double-layer sealed insertion by an O-ring (25) on the mating end (2), and the mating end (2) is bolted to the isostatic pressing device (3) by a flange (23) and a second fixing bolt (27).
3. The isostatic pressing one-time molding vacuuming sleeve feeding assembly according to claim 2, characterized in that: The feed seat (1) is connected to the feed pipe (4) in a screw-on splicing manner through the threaded port (22) in the feed end (19), and the feed seat (1) is connected to the feed pipe (4) in a double-sealed manner through the sealing groove (20) and the sealing block (21).
4. The isostatic pressing one-time molding vacuuming sleeve feeding assembly according to claim 3, characterized in that: The sealing guide sleeve (5) is connected to the feed pipe (4) in a close fit through the elastic sealing layer (11), and the elastic sealing layer (11) is made of silicone. The sealing guide sleeve (5) is bolted to the feed pipe (4) through the first fixing bolt (10).
5. The isostatic pressing one-time molding vacuuming sleeve feeding assembly according to claim 4, characterized in that: The vacuum tube (6) and vacuum pump (7) are connected to the sealing guide sleeve (5) through positioning plug (14) and positioning slot (17) in a positioning insertion connection. The positioning plug (14) is elastically locked and fixedly connected to the positioning slot (17) through locking groove (16) and locking block (18). The vacuum tube (6) is an integrated valve structure.
6. The isostatic pressing one-time molding vacuuming sleeve feeding assembly according to claim 5, characterized in that: The spiral guide pattern (8) extends spirally along the feeding direction on the inner wall of the feeding channel (9), and the guide ridge (12) is flush with the inner wall of the feeding pipe (4) inside the sealing guide sleeve (5).