A double-tube experimental compaction functional ceramic powder equipment

Abstract

The present invention discloses a double-tube experimental compaction functional ceramic powder equipment, the structure of which includes a base, a first connecting column, a die press, a second connecting column, a hydraulic press, an upper pressing column, and a recovery device. The first connecting column is movably engaged between the top of the base and the die press, the second connecting column is movably engaged between the upper end of the die press and the lower end of the hydraulic press, the upper pressing column is embedded and connected to the center of the lower end of the hydraulic press, the upper end of the recovery device is welded and connected to the lower end of the upper pressing column, and the lower end of the recovery device is embedded and connected to the lower end of the die press. The recovery device of the present invention can collect dust particles between the die press and the upper pressing column, and prevent the inhaled powder particles from falling from the feed port again. The power device and the discharge device of the present invention, the power device can use the movement between the upper pressing column and the die press to generate a flowing airflow for the suction ring, the discharge device can discharge the dust particles at the left end of the suction ring, and avoid clogging of the powder particles.

Description

Technical Field

[0001] The invention relates to the technical field of functional ceramic preparation, and more specifically, to a double-tube experimental compacting functional ceramic powder device. Background Art

[0002] The double-tube experimental compaction function ceramic powder equipment is a hydraulic system with a double-tube, two-way pressurization structure, that is, the mold cavity fixes the ceramic powder, and the upper and lower pressure heads move and compact the ceramic powder for rapid dry pressing. It is often used for trial production of ceramic products outside the production line. However, the existing technology has the following shortcomings:

[0003] After the ceramic powder placed inside the mold cavity is pressed down by the downwardly moving upper pressure head, the ceramic powder placed on the upper surface of the mold cavity will be sprayed outward from the gap between the upper pressure head and the mold cavity due to the downward pressure of the upper pressure head on the ceramic powder, thereby blocking the operator's vision and causing the ceramic powder sprayed everywhere to cause material waste. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention aims to provide a double-tube experimental compacting functional ceramic powder equipment to solve the problems of the prior art.

[0005] In order to achieve the above-mentioned purpose, the present invention is realized by the following technical scheme: a double-tube experimental compaction functional ceramic powder equipment, the structure of which includes a base, a first connecting column, a die press, a second connecting column, a hydraulic press, an upper pressing column, and a recovery device, the first connecting column is movably engaged between the upper part of the base and the die press, the second connecting column is movably engaged between the upper end of the die press and the lower end of the hydraulic press, the upper pressing column is embedded and connected to the center of the lower end of the hydraulic press, the upper end of the recovery device is welded and connected to the lower end of the upper pressing column, and the lower end of the recovery device is embedded and connected to the lower end of the die press;

[0006] The recovery device consists of a suction ring, a power unit, and a discharge device. The inner side of the suction ring is welded to the outer ring of the upper pressure column, the left side of the upper end of the power unit is welded to the suction ring, the lower end of the power unit is embedded and connected to the die, the right side of the upper end of the discharge device is welded to the suction ring, and the lower end of the discharge device is embedded and connected to the die.

[0007] The present invention is further improved, the suction ring is composed of a ring wall, an air inlet, a feed plate, a guide block, and a discharge port, the inner side of the ring wall is welded and connected to the upper pressure column, the air inlet is arranged at the right end of the outer ring of the ring wall, and the air inlet and the ring wall are an integrated structure, the feed plate is welded and connected to the lower end of the inner wall of the ring wall, the guide block is a structure that is wide on the right and narrow on the left, and has arc-shaped ends at the front and back, the guide block is embedded and connected to the left end of the inside of the ring wall, the discharge port is arranged at the left end of the outer ring of the ring wall, and the discharge port and the ring wall are an integrated structure.

[0008] A further improvement to the present invention is that the feed plate consists of a plate body, a feed port, and a baffle plate. The plate body is welded and connected to the lower end of the inner wall of the ring wall. The feed port is a cavity structure that is wide at the bottom and narrow at the top and inclined to the left. The feed port is arranged inside the plate body, and the feed port and the plate body are an integrated structure. The right end of the baffle plate is embedded and connected above the plate body.

[0009] The present invention is further improved. The material baffle plate consists of a plate body, a driving cavity, and a force-bearing block. The plate body is made of nylon. The right end of the plate body is embedded and connected above the plate body. The driving cavity is a hooked eagle-beak-shaped cavity structure. The driving cavity is arranged below the left end of the plate body. The force-bearing block is an arc-shaped structure inclined to the right. The force-bearing block is arranged above the plate body, and the force-bearing block and the plate body are an integrated structure.

[0010] The present invention is further improved. The power device consists of an upper air pipe, an outer shell, a connecting block, an inner sleeve, and an air passing device. The left side of the upper end of the upper air pipe is welded to the suction ring, the upper air pipe is movably engaged in the outer shell, the outer shell is embedded and connected to the inside of the die, the connecting block is welded between the outer shell and the lower end of the inner sleeve, and the air passing device is installed at the upper end of the inner sleeve.

[0011] The present invention is further improved. The air passage device is composed of a chassis, air holes, a plug piece, and a groove. The outer ring of the chassis is welded to the upper end of the inner wall of the inner sleeve. There are six air holes in total. The six air holes are arranged inside the chassis, and the air holes and the chassis are an integrated structure. The cross-section of the plug piece is a Y-shaped structure. The lower end of the plug piece is embedded and connected to the center above the chassis. The groove is arranged at the upper end of the inner sleeve, and the groove and the inner sleeve are an integrated structure. The inner wall of the groove fits with the lower side of the upper end of the plug piece.

[0012] The present invention is further improved. The discharge device consists of a feed pipe, a scraper ring, a blanking pipe, and a blanking rack. The right side of the upper end of the feed pipe is welded to the suction ring. The scraper ring is made of tungsten steel and has a narrow lower part and a wide upper part. The scraper ring is arranged at the lower end of the feed pipe, and the scraper ring and the feed pipe are an integrated structure. The blanking pipe is embedded and connected inside the die press. The inside of the blanking pipe is movably engaged with the feed pipe, and the blanking rack is welded and connected below the blanking pipe.

[0013] The present invention is further improved. The blanking rack is composed of a bracket, a base frame, a plug and a guide groove. There are four brackets in total. The upper ends of the four brackets are welded to the lower end of the blanking tube. The base frame is welded to the inner sides of the four brackets. The plug is a pointed cone structure. The plug is embedded and connected above the base frame. The guide groove is an arc-shaped groove structure with the lower end facing outward. The guide groove is arranged on the outer ring of the plug, and the guide groove and the plug are an integrated structure.

[0014] According to the technical solution proposed above, the double-tube experimental compaction functional ceramic powder equipment of the present invention has the following beneficial effects:

[0015] The recovery device of the present invention can utilize the gas ejected by the power device to suck air into the suction ring through the feed port of the feed plate, which has a cavity structure that is wide at the bottom and narrow at the top and inclined to the left, to collect the dust particles between the die press and the upper pressure column, and the airflow drives the baffle plate on the upper end of the plate to open and close, so as to prevent the sucked powder particles from falling from the feed port again.

[0016] The power device and the discharge device of the present invention can utilize the movement between the upper pressure column and the die press to generate a flowing airflow to the suction ring, and the discharge device can discharge the dust particles at the left end of the suction ring and avoid clogging by powder particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0018] Figure 1 It is a structural schematic diagram of a double-tube experimental compaction functional ceramic powder device of the present invention;

[0019] Figure 2 It is a structural schematic diagram of the recovery device of the present invention from the front view;

[0020] Figure 3 It is a schematic diagram of the structure of the suction ring of the present invention in a top view;

[0021] Figure 4 This is a schematic diagram of the structure of the feed plate of the present invention, which is cut and enlarged in front view;

[0022] Figure 5 This is a schematic diagram of the structure of the material baffle plate of the present invention, which is cut and enlarged in front view;

[0023] Figure 6 It is a schematic diagram of the structure of the power device of the present invention cut away from the front;

[0024] Figure 7 It is a schematic diagram of the structure of the gas passing device of the present invention, which is cut and enlarged in front view;

[0025] Figure 8 It is a schematic diagram of the structure of the material discharging device of the present invention in front view and section;

[0026] Fig. 9 It is a schematic structural diagram of a front view cutaway of the blanking rack of the present invention.

[0027] In the figure: base 1, first connecting column 2, die press 3, second connecting column 4, hydraulic press 5, upper pressing column 6, recovery device 7, suction ring 71, power device 72, discharge device 73, ring wall 711, air inlet 712, feed plate 713, guide block 714, discharge port 715, plate body 131, feed port 132, baffle plate 133, plate body 331, belt Dynamic cavity-332, force block-333, upper air pipe-721, outer shell-722, connecting block-723, inner sleeve-724, air passing device-725, chassis-251, air hole-252, plug-253, slot-254, feed pipe-731, scraper ring-732, blanking pipe-733, blanking rack-734, bracket-341, base frame-442, plug-443, guide groove-444. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0029] Example 1: Please refer to Figure 1-Figure 5 , the specific embodiments of the present invention are as follows:

[0030] The present invention provides a double-tube experimental compaction functional ceramic powder equipment, which structure includes a base 1, a first connecting column 2, a die press 3, a second connecting column 4, a hydraulic press 5, an upper pressing column 6, and a recovery device 7. The first connecting column 2 is movably engaged between the top of the base 1 and the die press 3, the second connecting column 4 is movably engaged between the upper end of the die press 3 and the lower end of the hydraulic press 5, the upper pressing column 6 is embedded and connected to the center of the lower end of the hydraulic press 5, the upper end of the recovery device 7 is welded to the lower end of the upper pressing column 6, and the lower end of the recovery device 7 is embedded and connected to the lower end of the die press 3.

[0031] The recovery device 7 is composed of a suction ring 71, a power device 72, and a discharge device 73. The inner side of the suction ring 71 is welded to the outer ring of the upper pressure column 6, the left side of the upper end of the power device 72 is welded to the suction ring 71, the lower end of the power device 72 is embedded and connected to the die 3, the right side of the upper end of the discharge device 73 is welded to the suction ring 71, and the lower end of the discharge device 73 is embedded and connected to the die 3.

[0032] The suction ring 71 is composed of a ring wall 711, an air inlet 712, a feed plate 713, a guide block 714, and a discharge port 715. The inner side of the ring wall 711 is welded to the upper pressure column 6. The air inlet 712 is arranged at the right end of the outer ring of the ring wall 711, and the air inlet 712 and the ring wall 711 are an integrated structure. The feed plate 713 is welded to the lower end of the inner wall of the ring wall 711. The guide block 714 is a right-wide and left-narrow arc-shaped structure with front and rear ends. The guide block 714 is embedded and connected to the left end of the inner part of the ring wall 711. The discharge port 715 is arranged at the left end of the outer ring of the ring wall 711, and the discharge port 715 is connected to the ring wall 71 1 is an integrated structure. When the power device 72 ejects gas, the airflow enters from the discharge port 715 arranged at the right end of the outer ring of the ring wall 711, and is divided into two flows along the ring wall 711 and the feed plate 713. The guide block 714, which is embedded and connected to the left end of the inner ring wall 711 and has a right-wide and left-narrow arc structure at both ends, can guide the two airflows into the discharge port 715 arranged at the left end of the outer ring of the ring wall 711, respectively, to prevent the two airflows from impacting each other at the left end of the inner ring wall 711, avoid the two airflows from forming turbulence inside the ring wall 711, and make the two airflows flow into the discharge device 73 welded to the left end of the suction ring 71 in an orderly manner.

[0033] The feed plate 713 is composed of a plate body 131, a feed opening 132, and a baffle plate 133. The plate body 131 is welded and connected to the lower end of the inner wall of the annular wall 711. The feed opening 132 is a cavity structure that is wide at the bottom and narrow at the top and inclined to the left. The feed opening 132 is arranged inside the plate body 131, and the feed opening 132 and the plate body 131 are an integrated structure. The right end of the baffle plate 133 is embedded and connected above the plate body 131. When the airflow flows from right to left over the plate body 131, it will drive the left end of the baffle plate 133 to tilt upward, so that the powder particles at the lower end of the plate body 131 are sucked into the feed opening 132 which is a cavity structure that is wide at the bottom and narrow at the top and inclined to the left inside the plate body 131. When the airflow stops flowing, the baffle plate 133 covers the top of the feed opening 132 to prevent the sucked powder particles from falling out of the feed opening 132 and waiting for the next airflow to pass and then blow the powder particles away.

[0034] The baffle plate 133 is composed of a plate body 331, a driving cavity 332, and a force block 333. The plate body 331 is made of nylon. The right end of the plate body 331 is embedded and connected to the top of the plate body 131. The driving cavity 332 is a back-hook eagle-beak-shaped cavity structure. The driving cavity 332 is arranged below the left end of the plate body 331. The force block 333 is an arc-shaped structure inclined to the right. The force block 333 is arranged above the plate body 331, and the force block 333 and the plate body 331 are an integrated structure. When the airflow passes from the plate body 331 When passing over, the force-bearing block 333 with a right-inclined arc structure arranged above the plate body 331 is impacted by the airflow, driving the plate body 331 to gradually tilt upward, so that the gas flowing at the upper end of the plate body 331 drives the gas at the lower end of the plate body 331 to be sucked in, and the inhaled gas impacts the driving cavity 332 with a hooked eagle-beak-shaped cavity structure arranged below the left end of the plate body 331, so that the left end of the plate body 331 is subjected to an upper left pulling force, so that the nylon plate body 331 is straightened to the upper left, which is beneficial to the suction of powder particles from the feed inlet 132.

[0035] Based on the above embodiment, the specific working principle is as follows:

[0036] The die pressing device 3 movably engaged between the first connecting column 2 and the second connecting column 4 can move up and down, and the hydraulic pressure 5 drives the upper pressing column 6 to move up and down to work, and the recovery device 7 collects the dust particles between the die pressing device and the upper pressing column. When the upper pressing column 6 moves downward, the power device 72 will spray out airflow from the discharge port 715 arranged at the right end of the outer ring of the annular wall 711, and divide it into two flows along the annular wall 711 and the feeding plate 713. The guide block 714, which is embedded and connected to the left end of the inner part of the annular wall 711 and has an arc-shaped structure at both ends, can guide the two airflows into the discharge port 715 arranged at the left end of the outer ring of the annular wall 711 respectively, to prevent the two airflows from colliding with each other at the left end inside the annular wall 711, and to avoid the two airflows from forming turbulence inside the annular wall 711, so that the two airflows can flow into the discharge device 73 welded and connected to the left end of the suction ring 71 in an orderly manner. When the airflow flows from right to left over the plate body 131 The inhaled gas impacts the driving cavity 332 with a hook-shaped cavity structure provided at the lower part of the left end of the plate body 331, so that the left end of the plate body 331 is pulled to the upper left, so that the plate body 331 made of nylon is straightened to the upper left, which is conducive to the inhalation of powder particles from the feeding port 132.

[0037] Example 2: Please refer to Figure 6-Figure 9 , the specific embodiments of the present invention are as follows:

[0038] The present invention provides a double-tube experimental compaction functional ceramic powder equipment, the power device 72 is composed of an upper air pipe 721, an outer shell 722, a connecting block 723, an inner sleeve 724, and an air passing device 725. The left side of the upper end of the upper air pipe 721 is welded and connected to the suction ring 71, the upper air pipe 721 is movably engaged in the inner shell 722, the outer shell 722 is embedded and connected in the mold 3, the connecting block 723 is welded and connected between the outer shell 722 and the lower end of the inner sleeve 724, and the air passing device 725 is installed at the upper end of the inner sleeve 724.

[0039] The air passing device 725 is composed of a chassis 251, an air hole 252, a plug 253, and a slot 254. The outer ring of the chassis 251 is welded to the upper end of the inner wall of the inner sleeve 724. There are six air holes 252 in total. The six air holes 252 are arranged inside the chassis 251, and the air holes 252 and the chassis 251 are an integrated structure. The cross section of the plug 253 is a Y-shaped structure. The lower end of the plug 253 is embedded and connected to the center above the chassis 251. The slot 254 is arranged at the upper end of the inner sleeve 724, and the slot 254 and the inner sleeve 724 is an integrated structure, and the inner wall of the groove 254 is in contact with the lower side of the upper end of the plug 253. When the airflow passes from bottom to top, the gas passes through the six air holes 252 arranged inside the chassis 251, and impacts the plug 253 with a Y-shaped cross-section, causing the upper end of the plug 253 to flip up, so that the gas can smoothly pass through the upper end of the inner sleeve 724. When the pressure at the upper end of the inner sleeve 724 increases, the upper end of the plug 253 will be tightly attached to the inner wall of the groove 254 arranged at the upper end of the inner sleeve 724, so that the gas cannot pass downward from the top of the plug 253.

[0040] The discharge device 73 is composed of a feed pipe 731, a scraper ring 732, a blanking pipe 733, and a blanking rack 734. The upper right side of the feed pipe 731 is welded to the suction ring 71. The scraper ring 732 is made of tungsten steel and has a narrow lower and wide upper structure. The scraper ring 732 is arranged at the lower end of the feed pipe 731, and the scraper ring 732 and the feed pipe 731 are an integrated structure. The blanking pipe 733 is embedded and connected to the inside of the die press 3. The inside of the blanking pipe 733 is connected to the suction ring 71. The feed tube 731 is movably engaged, and the blanking rack 734 is welded and connected to the bottom of the blanking tube 733. When the powder particles pass through the feed tube 731 and are discharged from the blanking rack 734 at the lower end of the blanking tube 733, some of the powder particles will stick to the inner wall of the blanking tube 733. The scraper ring 732 made of tungsten steel and with a narrow lower part and a wide upper part, which is arranged at the lower end of the feed tube 731, moves downward with the feed tube 731 and can scrape off some of the powder particles stuck to the inner wall of the blanking tube 733.

[0041] The blanking rack 734 is composed of a bracket 341, a base frame 442, a plug 443, and a guide groove 444. There are four brackets 341 in total. The upper ends of the four brackets 341 are welded to the lower end of the blanking tube 733. The base frame 442 is welded to the inner side of the four brackets 341. The plug 443 is a pointed cone structure. The plug 443 is embedded and connected above the base frame 442. The guide groove 444 is an arc-shaped groove structure with the lower end facing outward. The guide groove 444 is arranged on the outer ring of the plug 443, and the guide groove 444 and the plug 443 are an integrated structure. When the airflow carries As the powder particles fall from the drop tube 733, the airflow increases the pressure at the lower end of the drop tube 733 through the plug 443 which is embedded and connected to the top of the base frame 442 and has a pointed cone structure. The airflow impacts the guide groove 444 which is an arc-shaped groove structure with the lower end facing outward on the outer ring of the plug 443. The airflow is guided to impact the four supports 341 and the base frame 442 to prevent blockage by the powder particles. When the feed tube 731 and the scraper ring 732 fall to the lower end of the drop tube 733, the airflow guided by the plug 443 impacts the inner wall of the scraper ring 732 to blow off the powder particles scraped off by the scraper ring 732.

[0042] Based on the above embodiment, the specific working principle is as follows:

[0043] When the upper pressure column 6 drives the suction ring 71 to descend, the upper air pipe 721 follows the suction ring 71 and descends between the outer shell 722 and the inner sleeve 724, so that the space between the inside of the upper air pipe 721 and the inner sleeve 724 becomes smaller and the pressure becomes stronger. The upper end of the plug 253 of the air passing device 725 will be tightly attached to the inner wall of the groove 254 provided at the upper end of the inner sleeve 724, so that the gas cannot pass downward from the top of the plug 253, so that the gas can only enter the suction ring 71 from the upper air pipe 721. When the upper pressure column 6 rises, the air pressure of the air passing device 725 becomes smaller, and the gas passes through the six air holes 252 provided inside the bottom plate 251, impacting the plug 253 with a Y-shaped cross-section, causing the upper end of the plug 253 to flip upward, so that the gas can smoothly pass through the upper end of the inner sleeve 724. When the powder particles pass through the feeding pipe 731 and are discharged from the blanking rack 734 at the lower end of the blanking pipe 733 , some powder particles will stick to the inner wall of the drop tube 733. The scraper ring 732, which is made of tungsten steel and has a narrow lower part and a wide upper part and is arranged at the lower end of the feed tube 731, follows the feed tube 731 to move downward and can scrape off some powder particles stuck to the inner wall of the drop tube 733. When the airflow carries the powder particles and falls from the drop tube 733, the airflow passes through the plug 443, which is embedded and connected to the top of the base frame 442 and has a pointed cone structure, thereby increasing the pressure at the lower end of the drop tube 733. The airflow impacts the guide groove 444, which is an arc-shaped groove structure with the lower end facing outward on the outer ring of the plug 443. The airflow is guided to impact the four brackets 341 and the base frame 442 to prevent blockage of powder particles. When the feed tube 731 and the scraper ring 732 fall to the lower end of the drop tube 733, the airflow guided by the plug 443 impacts the inner wall of the scraper ring 732, and blows off the powder particles scraped off by the scraper ring 732.

[0044] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0045] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A double-tube experimental compaction functional ceramic powder equipment, the structure of which includes a base (1), a first connecting column (2), a die press (3), a second connecting column (4), a hydraulic press (5), an upper pressing column (6), and a recovery device (7), characterized in that: The first connecting column (2) is movably engaged between the upper part of the base (1) and the die press (3), the second connecting column (4) is movably engaged between the upper end of the die press (3) and the lower end of the hydraulic press (5), the upper pressure column (6) is embedded and connected to the center of the lower end of the hydraulic press (5), the upper end of the recovery device (7) is welded to the lower end of the upper pressure column (6), and the lower end of the recovery device (7) is embedded and connected to the lower end of the die press (3); The recovery device (7) is composed of a suction ring (71), a power device (72), and a discharge device (73); the inner side of the suction ring (71) is welded to the outer ring of the upper pressure column (6); the left side of the upper end of the power device (72) is welded to the suction ring (71); the lower end of the power device (72) is embedded and connected to the die (3); the right side of the upper end of the discharge device (73) is welded to the suction ring (71); and the lower end of the discharge device (73) is embedded and connected to the die (3); The suction ring (71) is composed of a ring wall (711), an air inlet (712), a feed plate (713), a guide block (714), and a discharge port (715). The inner side of the ring wall (711) is welded to the upper pressure column (6). The air inlet (712) is arranged at the right end of the outer ring of the ring wall (711), and the air inlet (712) and the ring wall (711) are an integrated structure. The feed plate (713) is welded to the lower end of the inner wall of the ring wall (711), and the guide block (714) is embedded and connected to the left end of the inner part of the ring wall (711). The discharge port (715) is arranged at the left end of the outer ring of the ring wall (711), and the discharge port (715) and the ring wall (711) are an integrated structure. The feed plate (713) is composed of a plate body (131), a feed port (132), and a baffle plate (133); the plate body (131) is welded to the lower end of the inner wall of the ring wall (711); the feed port (132) is arranged inside the plate body (131), and the feed port (132) and the plate body (131) are an integrated structure; the right end of the baffle plate (133) is embedded and connected above the plate body (131); The material blocking plate (133) is composed of a plate body (331), a driving cavity (332), and a force-bearing block (333); the right end of the plate body (331) is embedded and connected above the plate body (131); the driving cavity (332) is arranged below the left end of the plate body (331); the force-bearing block (333) is arranged above the plate body (331); and the force-bearing block (333) and the plate body (331) are an integrated structure.

2. A double-tube experimental compaction functional ceramic powder equipment according to claim 1, characterized in that: The power device (72) is composed of an upper air pipe (721), an outer shell (722), a connecting block (723), an inner sleeve (724), and an air passing device (725). The left side of the upper end of the upper air pipe (721) is welded to the suction ring (71), the upper air pipe (721) is movably engaged in the inner shell (722), the outer shell (722) is embedded and connected in the die pressing device (3), the connecting block (723) is welded between the outer shell (722) and the lower end of the inner sleeve (724), and the air passing device (725) is installed at the upper end of the inner sleeve (724).

3. A double-tube experimental compaction functional ceramic powder equipment according to claim 2, characterized in that: The air passing device (725) is composed of a chassis (251), an air hole (252), a plug (253), and a groove (254). The outer ring of the chassis (251) is welded to the upper end of the inner wall of the inner sleeve (724). There are six air holes (252) in total. The six air holes (252) are arranged inside the chassis (251), and the air holes (252) and the chassis (251) are an integrated structure. The lower end of the plug (253) is embedded and connected to the center above the chassis (251). The groove (254) is arranged at the upper end of the inner sleeve (724), and the groove (254) and the inner sleeve (724) are an integrated structure. The inner wall of the groove (254) is in contact with the lower side of the upper end of the plug (253).

4. The double-tube experimental compaction functional ceramic powder equipment according to claim 1 is characterized in that: The discharge device (73) is composed of a feed pipe (731), a scraper ring (732), a blanking pipe (733), and a blanking rack (734). The right side of the upper end of the feed pipe (731) is welded to the suction ring (71). The scraper ring (732) is arranged at the lower end of the feed pipe (731), and the scraper ring (732) and the feed pipe (731) are an integrated structure. The blanking pipe (733) is embedded and connected inside the die press (3). The inside of the blanking pipe (733) is movably engaged with the feed pipe (731). The blanking rack (734) is welded to the bottom of the blanking pipe (733).

5. The double-tube experimental compaction functional ceramic powder equipment according to claim 4 is characterized in that: The blanking rack (734) is composed of a bracket (341), a base frame (442), a plug (443), and a guide groove (444). There are four brackets (341) in total. The upper ends of the four brackets (341) are welded to the lower end of the blanking tube (733). The base frame (442) is welded to the inner side of the four brackets (341). The plug (443) is embedded and connected above the base frame (442). The guide groove (444) is provided on the outer ring of the plug (443), and the guide groove (444) and the plug (443) are an integrated structure.

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