Production equipment for high-sealing ceramic inner cylinder hanging pieces

Abstract

The present invention relates to a production device for a high-sealing ceramic inner tube hanging piece, belonging to the field of ceramic forming technology. It comprises a bracket; a preliminary processing unit, comprising a feed assembly arranged on the upper layer of the bracket, the discharge port of the feed assembly being connected to a negative pressure conveying assembly; a negative pressure extrusion forming unit, comprising a compaction assembly arranged on the lower layer of the bracket, the compaction assembly being arranged in two layers, the discharge port of the negative pressure conveying assembly being connected to the upper layer of the compaction assembly, and the discharge port of the lower layer of the compaction assembly being connected to the negative pressure extrusion assembly; a double-station conversion assembly connected to the discharge port of the negative pressure extrusion assembly, the double-station conversion assembly being rotated to achieve the replacement of the forming head, thereby replacing one of the forming heads to the discharge port position of the negative pressure extrusion assembly; and a flushing unit, which is used to clean the forming head whose discharge port position has been replaced. Long-term downtime is avoided, silicon carbide sludge is not exposed for processing, and is prevented from being touched by operators, which greatly improves the working environment of operators.

Description

Technical Field

[0001] The invention relates to production equipment for a high-sealing ceramic inner cylinder hanging piece, belonging to the technical field of ceramic molding. Background Art

[0002] Molding is a key process in the preparation of silicon carbide ceramic products. Extrusion molding is a widely used method for producing continuous or semi-continuous ceramic bodies with a constant cross-sectional shape, such as tubes, rods, plates, and honeycomb ceramics. Traditional ceramic extrusion molding typically involves mixing silicon carbide powder with an organic binder, plasticizer, lubricant, and solvent (usually water) to create a highly plastic slurry. This is then extruded through the die of an extruder.

[0003] Currently, the main production equipment used is a vacuum extruder. This vacuum extruder removes gases from the clay before extrusion, thereby increasing the density and uniformity of the green body, reducing potential defects in subsequent processes, and improving the performance of the final product. Some vacuum extrusion equipment for common ceramic materials uses a vacuum chamber and vacuum pump in the feeding section or extrusion cavity to vacuum degas the clay.

[0004] The inventors have discovered that the prior art has at least the following technical problems:

[0005] During the production process, different types of inner cylinder hanging pieces are formed and produced using different forming heads. Due to the need to produce different types of inner cylinder hanging pieces, the forming head needs to be replaced after a batch of production is completed. The forming head needs to be manually disassembled from the gland, and then the forming head needs to be removed from the gland. It is then sent to the cleaning area and rinsed with high-pressure water to prevent silicon carbide from drying on the forming head and affecting subsequent processing. This treatment method requires a long period of downtime each time for replacement. When the cover is removed, a small amount of silicon carbide sludge will flow out of the front end, and a lot of residue will also remain in the forming head when it is removed, making it difficult to operate. Summary of the Invention

[0006] The technical problem to be solved by the present invention is: to overcome the shortcomings of the existing technology and provide a production equipment for high-sealing ceramic inner cylinder hanging pieces, which avoids long-term shutdown, does not expose silicon carbide mud to processing, avoids contact between operators, and greatly improves the working environment of operators.

[0007] The production equipment of the high-sealing ceramic inner cylinder hanging piece of the present invention comprises:

[0008] Bracket, the bracket is set in two layers;

[0009] The preliminary processing unit includes a feeding assembly arranged on the upper layer of the bracket, the discharge port of the feeding assembly is connected to the negative pressure conveying assembly, the negative pressure conveying assembly includes a first auger shaft connected to the feeding assembly, and the end of the feeding assembly away from the negative pressure conveying assembly is provided with a first drive assembly, and the output end of the first drive assembly is connected to the first auger shaft;

[0010] The negative pressure extrusion molding unit includes a compaction assembly provided on the lower layer of the bracket, the compaction assemblies are arranged in two layers, the discharge port of the negative pressure conveying assembly is connected to the upper layer of the compaction assembly, the discharge port of the lower layer of the compaction assembly is connected to the negative pressure extrusion assembly, the negative pressure extrusion assembly includes a second auger shaft connected to the compaction assembly, the end of the compaction assembly facing away from the negative pressure extrusion assembly is provided with a second drive assembly, and the output end of the second drive assembly is connected to the second auger shaft;

[0011] The replacement unit includes a double-station conversion assembly connected to the discharge port of the negative pressure extrusion assembly. The double-station conversion assembly rotates to realize the replacement of the forming head, thereby replacing one of the forming heads to the discharge port position of the negative pressure extrusion assembly;

[0012] The flushing unit is used to clean the forming head after the discharge port position of the negative pressure extrusion component is replaced.

[0013] Furthermore, the compacting assembly includes a compacting shell, the rotating shaft of the first auger shaft extends into the upper space of the compacting shell, and a cutting rod is provided on the rotating shaft located in the compacting shell.

[0014] Furthermore, compaction rollers are provided in the lower space of the compaction shell corresponding to the second auger shaft. The compaction rollers are arranged in parallel above both sides of the second auger to press the material cut off by the breaking rod into the second auger shaft.

[0015] Furthermore, the double-station conversion assembly includes a fixed plate connected to the discharge port of the negative pressure extrusion assembly, and a rotating plate that can rotate 180° is connected to the fixed plate. Both the fixed plate and the rotating plate are provided with corresponding station holes. In the initial position, the station holes on the fixed plate and the rotating plate overlap with each other. After the rotating plate rotates 180°, the station holes on the fixed plate and the rotating plate overlap with each other again. A power mechanism for driving the rotating plate to rotate is provided on the fixed plate located on one side of the negative pressure extrusion assembly.

[0016] Furthermore, the power mechanism includes a driving cylinder rotatably connected between the two working holes of the fixed plate, the driving cylinder is fixedly connected to the rotating plate, a connecting frame is provided at one end of the driving cylinder, the connecting frame is connected to the fixed plate, the connecting frame is connected to the fixed end of the hydraulic cylinder, the end of the telescopic end of the hydraulic cylinder is connected to a push rod, a spiral groove is provided on the driving cylinder, the push rod is arranged in the spiral groove, when the push rod moves forward, the push rod moves along the spiral groove, and the rotation of the driving cylinder drives the rotating plate to rotate.

[0017] Furthermore, an annular locking groove is provided on the driving cylinder, a locking point is provided in the locking groove, a locking plate is detachably connected to the rotating plate, and the locking plate is inserted into the locking groove and cooperates with the locking point.

[0018] Furthermore, a sealing mechanism is provided on the outer ring of the work station hole on the fixed plate corresponding to the discharge port of the negative pressure extrusion component. The sealing mechanism includes a sealing groove opened on the fixed plate, a corresponding pneumatic sealing ring is provided in the sealing groove, and an annular air groove is provided at the end of the fixed plate away from the sealing groove, and a sealing pressure plate is provided on the annular air groove.

[0019] Furthermore, a pressure cover is correspondingly installed on the station hole of the rotating plate, a forming head is arranged inside the pressure cover, and a positioning part is arranged in the inner circle of the station hole of the fixed plate located at the discharge port of the negative pressure extrusion component.

[0020] Furthermore, the negative pressure extrusion assembly includes several sections of detachably connected conveying cylinders, and a second auger shaft is provided in the conveying cylinders.

[0021] Furthermore, a thread guide groove is provided on the inner wall of the conveying cylinder, and the blades of the second auger shaft are extended into the thread guide groove.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] By providing a dual-station conversion assembly, the present invention allows production to proceed at one station while a replacement forming head is being prepared or cleaned at another station. When a replacement is needed, a simple rotation of the dual-station conversion assembly allows for quick switching. This significantly reduces equipment downtime caused by removing, installing, and transporting the forming head, significantly improving the overall operational efficiency and equipment utilization of the production line.

[0024] A sealing mechanism (such as a pneumatic seal) is installed between the dual-station conversion assembly and the discharge port of the negative pressure extrusion assembly to effectively prevent leakage of silicon carbide slurry during replacement and operation. The molding head switches between the two stations, eliminating the dripping and splashing of slurry during traditional molding head removal, maintaining a clean worksite and reducing material waste and equipment contamination. An integrated flushing unit ensures timely and standardized cleaning of replaced molding heads, eliminating direct contact between operators and silicon carbide slurry, significantly improving the working environment and reducing labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is one of the structural diagrams of an embodiment of the present invention;

[0026] Figure 2 This is the second structural diagram of an embodiment of the present invention;

[0027] Figure 3 yes Figure 2 A partial enlarged view of the middle A;

[0028] Figure 4 yes Figure 2 A partial enlarged view of point B in the middle;

[0029] Figure 5 This is an exploded view of the structure of the double-station conversion assembly according to an embodiment of the present invention;

[0030] Figure 6 yes Figure 5 A partial enlarged view of point C in the middle;

[0031] Figure 7 This is a schematic structural diagram of a double-station conversion assembly according to an embodiment of the present invention;

[0032] Figure 8 This is a schematic structural diagram of a driving cylinder according to an embodiment of the present invention;

[0033] Figure 9 is a schematic structural diagram of a fixed plate according to an embodiment of the present invention;

[0034] Figure 10 yes Figure 9 Partial cross-sectional view at DD in the middle;

[0035] Figure 11 This is a schematic structural diagram of a conveying cylinder according to an embodiment of the present invention;

[0036] Figure 12 2. It is a schematic structural diagram of the second auger shaft according to an embodiment of the present invention;

[0037] Figure 13 2 is a schematic structural diagram of a flushing unit according to an embodiment of the present invention;

[0038] Figure 14 2. It is a schematic structural diagram of a sealing and flushing assembly according to an embodiment of the present invention;

[0039] Figure 15 This is one of the schematic structural diagrams of the water spray assembly according to an embodiment of the present invention;

[0040] Figure 16 This is the second structural diagram of the water spray assembly according to an embodiment of the present invention;

[0041] In the picture:

[0042] 1. Bracket;

[0043] 2. First drive assembly;

[0044] 3. Feeding assembly;

[0045] 4. Negative pressure conveying assembly; 41. First auger shaft; 411. Rotating shaft; 42. Negative pressure housing;

[0046] 5. Compacting assembly; 51. Cutting rod; 52. Compacting housing; 53. Gear set; 54. Compacting roller;

[0047] 6. Negative pressure extrusion assembly; 61. Second auger shaft; 611. Spiral blade; 62. Conveying cylinder; 621. Threaded guide groove;

[0048] 7. Duplex conversion assembly; 71. Rotating plate; 72. Gland; 73. Power mechanism; 731. Hydraulic cylinder; 7311. Push rod; 732. Connecting frame; 733. Drive cylinder; 7331. Annular locking groove; 7332. Locking point; 7333. Spiral groove; 74. Fixed plate; 741. Sealing groove; 742. Sealing pressure plate; 743. Pneumatic sealing ring; 744. Annular air groove; 745. Positioning unit; 7441. Air inlet channel; 75. Locking mechanism; 76. Locking plate;

[0049] 8. Flushing unit; 81. Water spray assembly; 811. Water spray frame; 812. Second sealing platen; 813. Water spray mechanism; 8131. Water spray housing; 8132. Fan shaft; 8133. Water spray support frame; 8134. Water inlet channel; 814. First sealing platen; 815. Mobile frame; 82. Mobile water station;

[0050] 9. Second drive assembly;

[0051] 100. Forming head; 200. Work station hole. DETAILED DESCRIPTION

[0052] Example

[0053] like Figures 1 to 16 As shown, the production equipment of the high-sealing ceramic inner cylinder hanging piece of the present invention includes:

[0054] Bracket 1, bracket 1 is set up in two layers;

[0055] The preliminary processing unit includes a feed assembly 3 provided on the upper layer of the bracket 1, the discharge port of the feed assembly 3 is connected to the negative pressure conveying assembly 4, the negative pressure conveying assembly 4 includes a first auger shaft 41 connected to the feed assembly 3, and the end of the feed assembly 3 facing away from the negative pressure conveying assembly 4 is provided with a first drive assembly 2, and the output end of the first drive assembly 2 is connected to the first auger shaft 41;

[0056] The feeding assembly 3 includes a feeding shell, and a feeding port is provided at the upper end of the feeding shell. The mud material that has not entered falls onto the first auger shaft 41. The discharge port of the feeding shell is adapted to the outer ring diameter of the blade of the first auger shaft 41 to avoid the discharge port of the feeding shell being too large, which will cause the negative pressure in the negative pressure conveying assembly 4 to be destroyed.

[0057] The negative pressure extrusion molding unit includes a compaction assembly 5 provided on the lower layer of the bracket 1, the compaction assembly 5 is arranged in two layers, the discharge port of the negative pressure conveying assembly 4 is connected to the upper layer of the compaction assembly 5, and the discharge port of the lower layer of the compaction assembly 5 is connected to the negative pressure extrusion assembly 6. The negative pressure extrusion assembly 6 includes a second auger shaft 61 connected to the compaction assembly 5. The end of the compaction assembly 5 facing away from the negative pressure extrusion assembly 6 is provided with a second drive assembly 9, and the output end of the second drive assembly 9 is connected to the second auger shaft 61.

[0058] The first drive assembly 2 and the second drive assembly 9 are both configured with a motor and a reducer.

[0059] The replacement unit includes a double-station conversion assembly 7 connected to the discharge port of the negative pressure extrusion assembly 6, and the double-station conversion assembly 7 rotates to realize the replacement of the forming head 100, thereby replacing one of the forming heads 100 to the discharge port position of the negative pressure extrusion assembly 6;

[0060] like Figure 13 As shown, the flushing unit 8 is used to clean the forming head 100 after the discharge port position of the negative pressure extrusion assembly 6 is replaced. The flushing unit 8 includes a mobile water station 82 for pumping water. The water pipe output end of the mobile water station 82 is connected to the water spray assembly 81. The water spray assembly 81 includes a water spray frame 811. The screw on the water spray frame 811 is threadedly connected to the first sealing pressure plate 814. The screw is rotatably connected to the first sealing pressure plate 814. The first sealing pressure plate 814 is used to abut against the pressure cover 72. The first sealing pressure plate 814 is connected to a water outlet pipe for recovering the washed silicon carbide sludge. The water outlet pipe is arranged at the lower end of the first sealing pressure plate 814.

[0061] A second sealing platen 812 is mounted on the water spray frame 811 at the corresponding end of the first sealing platen 814. A movable frame 815 is slidably connected to the water spray frame 811. The movable frame 815 can slide up and down and is provided with a pull pin. When the button (or knob) is pulled, the pin withdraws from the keyhole, thereby unlocking the component. After release, a spring pushes the pin back, and if it aligns with the next keyhole, it will relock. The second sealing platen 812 is threadedly connected to the screw rod on the movable frame 815. The screw rod is rotatably connected to the second sealing platen 812, and the second sealing platen 812 is used to abut against the station hole 200 of the fixed plate 74.

[0062] A water spray mechanism 813 is connected to the inner side of the second sealing pressure plate 812. The water spray mechanism 813 includes a water spray housing 8131, one end of which is connected to a water inlet channel 8134. A fan shaft 8132 is rotatably connected to the water spray housing 8131. The other end of the water spray housing 8131 is snap-connected to a water spray support frame 8133. The water spray support frame 8133 is used to rotatably support the other end of the fan shaft 8132. The end of the fan shaft 8132 is threadedly connected to a water spray disc, and a plurality of water spray heads are arranged circumferentially on the water spray disc. Water enters through the water inlet channel 8134, driving the fan shaft 8132 to rotate. The fan shaft 8132 drives the water spray disc to rotate. Dynamic flushing can better clean the interior of the forming head 100.

[0063] The compacting assembly 5 includes a compacting shell 52. The rotating shaft 411 of the first auger shaft 41 extends into the upper space of the compacting shell 52. A breaking rod 51 is provided on the rotating shaft 411 in the compacting shell 52. The breaking rod 51 is used to break the silicon carbide slurry so that it falls into the lower layer.

[0064] Compacting rollers 54 are provided in the lower space of the compacting shell 52 corresponding to the second auger shaft 61 . The compacting rollers 54 are arranged parallel to the upper sides of the second auger to press the material cut off by the cutting rod 51 into the second auger shaft 61 .

[0065] like Figure 3 As shown, the compacting roller 54 is rotatably connected to the compacting shell 52, one end of the compacting roller 54 extends out of the compacting shell 52, and one end of the rotating shaft 411 extends out of the compacting shell 52. The compacting shell 52 is located on the outside and is also rotatably connected to a transfer shaft. The extended portion of the rotating shaft 411 and the transfer shaft are connected through a gear set 53. The portion of the compacting roller 54 extending out of the compacting shell 52 is respectively connected to the outer shaft of the gear set 53 through a chain drive, thereby transmitting the power of the rotating shaft 411 to the compacting roller 54 respectively. Through such a design, it is avoided to design a separate drive for the compacting roller 54, which greatly saves costs.

[0066] like Figures 4 to 10 As shown, the double-station conversion assembly 7 includes a fixed plate 74 connected to the discharge port of the negative pressure extrusion assembly 6, and a rotating plate 71 that can rotate 180° is connected to the fixed plate 74. Station holes 200 are correspondingly opened on the fixed plate 74 and the rotating plate 71. In the initial position, the station holes 200 on the fixed plate 74 and the rotating plate 71 overlap in pairs. After the rotating plate 71 rotates 180°, the station holes 200 on the fixed plate 74 and the rotating plate 71 overlap again in pairs. A power mechanism 73 for driving the rotating plate 71 to rotate is provided on the fixed plate 74 located on one side of the negative pressure extrusion assembly 6.

[0067] The power mechanism 73 includes a drive cylinder 733 that is rotatably connected between the two workstation holes 200 of the fixed plate 74. The drive cylinder 733 is fixedly connected to the rotating plate 71. One end of the drive cylinder 733 is provided with a connecting frame 732, which is connected to the fixed plate 74. The connecting frame 732 is connected to the fixed end of the hydraulic cylinder 731. The end of the telescopic end of the hydraulic cylinder 731 is connected to a push rod 7311. The drive cylinder 733 has a spiral groove 7333, and the push rod 7311 is set in the spiral groove 7333. When the push rod 7311 moves forward, the push rod 7311 moves along the spiral groove 7333, and the drive cylinder 733 rotates, driving the rotating plate 71. Driving the rotating plate 71 with the hydraulic cylinder 731 can both ensure torque and simplify the design. If a motor and a reducer are used, the design needs to be too large, thus affecting the layout.

[0068] like Figure 6 As shown, the push rod 7311 is screwed into the extension rod of the telescopic end of the hydraulic cylinder 731 through a thread. The outer ring of the push rod 7311 is rotated with a support ring, which is made of wear-resistant material to prevent excessive wear of the push rod 7311 during its movement along the spiral groove 7333.

[0069] like Figure 8 As shown, the spiral groove 7333 corresponds to a double-line design. The starting ends of the spiral groove 7333 differ by 180°, and the pitch is the same. It only needs to rotate half a circle on the cylindrical surface of the driving cylinder 733 to ensure that it rotates exactly 180° after the hydraulic cylinder 731 is extended and retracted. During the manufacturing process, the pitch of the spiral groove 7333 should be made as large as possible, that is, the length of the driving cylinder 733 is lengthened, so that the hydraulic cylinder 731 is smoother when working.

[0070] An annular locking groove 7331 is formed on the driving cylinder 733 , and a locking point 7332 is provided in the locking groove. A locking plate 76 is detachably connected to the rotating plate 71 , and the locking plate 76 is inserted into the locking groove and cooperates with the locking point 7332 .

[0071] A sealing mechanism is provided on the outer ring of the work station hole 200 corresponding to the discharge port of the negative pressure extrusion assembly 6 on the fixed plate 74. The sealing mechanism includes a sealing groove 741 opened on the fixed plate 74, and a corresponding pneumatic sealing ring 743 is provided in the sealing groove 741. An annular air groove 744 is correspondingly opened at the end of the fixed plate 74 away from the sealing groove 741, and a sealing pressure plate 742 is correspondingly provided on the annular air groove 744.

[0072] like Figure 7 As shown, an air inlet channel 7441 is opened on the fixing plate 74 , and the air inlet channel 7441 is connected to the annular air groove 744 .

[0073] A pressure cover 72 is correspondingly installed on the station hole 200 of the rotating plate 71, and a forming head 100 is arranged inside the pressure cover 72. A positioning portion 745 is provided in the inner circle of the station hole 200 of the fixed plate 74 located at the discharge port of the negative pressure extrusion assembly 6.

[0074] like Figure 4 and Figure 7 As shown, the fixed plate 74 is located on one side of the discharge port of the negative pressure extrusion assembly 6 and is hinged with a locking mechanism 75. The locking mechanism 75 includes a threaded rod hinged to the fixed plate 74, and a pressure plate is threadedly connected to the threaded rod. A corresponding U-shaped groove is provided on the rotating plate 71. The threaded rod is rotated along the hinge point of the fixed plate 74 to press the threaded rod into the U-shaped groove, thereby achieving compression to prevent the drive cylinder 733 from being subjected to excessive force and being damaged prematurely during operation.

[0075] The negative pressure extrusion assembly 6 includes a plurality of detachably connected conveying cylinders 62 , in which a second auger shaft 61 is disposed.

[0076] A threaded guide groove 621 is provided on the inner wall of the conveying cylinder 62, and the blades of the second auger shaft 61 extend into the threaded guide groove 621. This ensures the efficiency of the negative pressure extraction and improves the transportation efficiency.

[0077] The spiral piece 611 at the end of the second auger shaft 61 is arranged in a double spiral, which greatly improves the extrusion efficiency.

[0078] Working process or working principle:

[0079] Feeding and Upper-Layer Conveying: Silicon carbide slurry enters the system through the feed assembly 3. The first drive assembly 2 rotates the first auger shaft 41, generating negative pressure above the negative pressure housing 42 of the negative pressure conveying assembly 4. This draws out air from the slurry, and the silicon carbide slurry is conveyed from the negative pressure conveying assembly 4 to the upper layer of the compacting assembly 5. This negative pressure environment helps remove some air from the slurry, initially improving its density.

[0080] Material cutting and compaction: The rotating shaft 411 of the first auger shaft 41 extends to the upper layer of the compaction assembly 5. The cutting rod 51 on it cuts the continuously conveyed mud into segments, causing them to fall into the lower layer of the compaction assembly 5. The compaction roller 54 (driven by the first auger shaft 41 through the gear set 53 and chain drive) forcibly presses the falling mud into the second auger shaft 61, further removing air and increasing the density of the mud.

[0081] Lower-layer conveying and extrusion: The second drive assembly 9 rotates the second auger shaft 61. A negative pressure environment is also maintained within the negative pressure extrusion assembly 6. The second auger shaft 61 powerfully conveys and extrudes the compacted material within the conveying cylinder 62 (the inner wall of which has threaded guide grooves 621 into which blades extend). The double helical blades 611 at the end enhance extrusion efficiency and the density of the final product.

[0082] Molding: The clay passes through the discharge port of the negative pressure extrusion assembly 6 and is extruded through the molding head 100 mounted on the double-station conversion assembly 7 to form a ceramic inner cylinder hanging piece of the desired shape. The pneumatic sealing ring 743 on the fixed plate 74 ensures a seal with the molding head (mounted on the rotating plate 71 via the gland 72) during extrusion.

[0083] Dual-station conversion: The power mechanism 73 of the dual-station conversion assembly 7 (a hydraulic cylinder 731 drives a push rod 7311 to move within a spiral groove 7333 of a drive cylinder 733) enables the rotating plate 71 to rotate 180° relative to the fixed plate 74. This allows the forming head 100 in one station to be replaced or cleaned while the forming head in another station is operating, enabling uninterrupted production or rapid switching. A locking mechanism 75 ensures the stability of the rotating plate 71 in its working position.

[0084] Positioning and Sealing: When a used forming head 100 is transferred to the non-operating position (reserved for docking with the flushing unit 8) via the dual-station conversion assembly 7, the water spray rack 811 of the flushing unit 8 moves into position. The first sealing platen 814 abuts and seals against the gland 72 where the forming head is located, while the second sealing platen 812 abuts and seals against the station hole 200 of the fixed plate 74.

[0085] Dynamic flushing: Water is supplied by the mobile water station 82. Water enters the water spray housing 8131 of the water spray mechanism 813 through the water inlet channel 8134, driving the fan shaft 8132 and the water spray disc at its end to rotate. The water nozzles on the water spray disc spray high-pressure water into the interior of the forming head 100, providing a dynamic, all-round flushing effect, effectively removing any residual silicon carbide sludge. Waste material after flushing is recovered through the outlet pipe at the lower end of the first sealing platen 814.

[0086] Forming head replacement:

[0087] When the forming head 100 needs to be replaced (for example, to change the product specifications of the ceramic hanging piece), the extrusion is stopped first, and the second driving assembly 9 drives the second auger shaft 61 to rotate in the opposite direction to return the clay material that has not been squeezed out of the forming head 100.

[0088] Release the locking mechanism 75.

[0089] The power mechanism 73 of the double-station conversion assembly 7 is started (the hydraulic cylinder 731 is activated).

[0090] The push rod 7311 moves in the spiral groove 7333 of the driving cylinder 733 , causing the driving cylinder 733 and the fixed rotating plate 71 to rotate 180°.

[0091] The forming head 100 in the original working position is transferred to the position to be cleaned / replaced, and at the same time, the spare new forming head 100 or the cleaned forming head is transferred to the working position (aligned with the discharge port of the negative pressure extrusion assembly 6).

[0092] The locking mechanism 75 is locked, and the pneumatic sealing ring 743 is inflated and sealed again.

[0093] The extrusion process continues.

[0094] Forming head flushing (in parallel with production or after change):

[0095] The flushing unit 8 is moved to the molding head 100 which has been moved to the position to be cleaned.

[0096] The movable frame 815 is operated to make the first sealing pressure plate 814 tightly abut against the pressure cover 72 , and the second sealing pressure plate 812 tightly abut against the station hole 200 of the fixed plate 74 .

[0097] The mobile water station 82 is started, and high-pressure water enters the water spraying mechanism 813 .

[0098] The water flow drives the fan shaft 8132 and the water spray disc to rotate, and the water spray head performs 360° dynamic flushing on the interior of the forming head 100.

[0099] The wastewater containing silicon carbide mud after flushing is collected and recycled through the outlet pipe.

[0100] After cleaning is completed, the flushing unit 8 is removed and the forming head 100 can be used as a standby.

[0101] The description of the direction and relative position relationship of the structure in the present invention, such as the description of front, back, left, right, up and down, does not constitute a limitation of the present invention and is only for the convenience of description.

Claims

1. A production equipment for high-sealing ceramic inner cylinder hanging pieces, characterized in that: include: The bracket (1) is provided with two layers, upper and lower; A preliminary processing unit comprises a feed assembly (3) arranged on the upper layer of a support (1); a discharge port of the feed assembly (3) is connected to a negative pressure conveying assembly (4); the negative pressure conveying assembly (4) comprises a first auger shaft (41) connected to the feed assembly (3); an end of the feed assembly (3) facing away from the negative pressure conveying assembly (4) is provided with a first drive assembly (2); an output end of the first drive assembly (2) is connected to the first auger shaft (41); A negative pressure extrusion molding unit comprises a support (1) having a lower layer provided with a compaction assembly (5), the compaction assembly (5) being arranged in two layers, the discharge port of the negative pressure conveying assembly (4) being connected to the upper layer of the compaction assembly (5), the discharge port of the lower layer of the compaction assembly (5) being connected to the negative pressure extrusion assembly (6), the negative pressure extrusion assembly (6) comprising a second auger shaft (61) connected to the compaction assembly (5), the end of the compaction assembly (5) facing away from the negative pressure extrusion assembly (6) being provided with a second drive assembly (9), and the output end of the second drive assembly (9) being connected to the second auger shaft (61); A replacement unit includes a double-station conversion assembly (7) connected to the discharge port of the negative pressure extrusion assembly (6), wherein the double-station conversion assembly (7) rotates to realize the replacement of the forming head (100), thereby replacing one of the forming heads (100) to the discharge port position of the negative pressure extrusion assembly (6); The flushing unit (8) is used to clean the forming head (100) after the position of the discharge port of the negative pressure extrusion assembly (6) is changed.

2. The production equipment of high-sealing ceramic inner cylinder hanging sheet according to claim 1 is characterized in that: The compacting assembly (5) includes a compacting shell (52), a rotating shaft (411) of the first auger shaft (41) extends into the upper space of the compacting shell (52), and a cutting rod (51) is provided on the rotating shaft (411) located in the compacting shell (52).

3. The production equipment of high-sealing ceramic inner cylinder hanging sheet according to claim 2, characterized in that: Compacting rollers (54) are provided in the lower space of the compacting shell (52) corresponding to the second auger shaft (61). The compacting rollers (54) are arranged in parallel above both sides of the second auger to press the material cut off by the cutting rod (51) into the second auger shaft (61).

4. The production equipment of high-sealing ceramic inner cylinder hanging sheet according to claim 1, characterized in that: The double-station conversion assembly (7) includes a fixed plate (74) connected to the discharge port of the negative pressure extrusion assembly (6), a rotating plate (71) that can rotate 180 degrees is connected to the fixed plate (74), and station holes (200) are correspondingly opened on the fixed plate (74) and the rotating plate (71). In the initial position, the station holes (200) on the fixed plate (74) and the rotating plate (71) overlap each other. After the rotating plate (71) rotates 180 degrees, the station holes (200) on the fixed plate (74) and the rotating plate (71) overlap each other again. A power mechanism (73) for driving the rotating plate (71) to rotate is provided on the fixed plate (74) located on one side of the negative pressure extrusion assembly (6).

5. The production equipment of high-sealing ceramic inner cylinder hanging sheet according to claim 4, characterized in that: The power mechanism (73) includes a driving cylinder (733) rotatably connected between two workstation holes (200) of the fixed plate (74). The driving cylinder (733) is fixedly connected to the rotating plate (71). One end of the driving cylinder (733) is provided with a connecting frame (732). The connecting frame (732) is connected to the fixed plate (74). The connecting frame (732) is connected to the fixed end of the hydraulic cylinder (731). The end of the telescopic end of the hydraulic cylinder (731) is connected to a push rod (7311). The driving cylinder (733) is provided with a spiral groove (7333). The push rod (7311) is arranged in the spiral groove (7333). When the push rod (7311) moves forward, the push rod (7311) moves along the spiral groove (7333), and the driving cylinder (733) rotates to drive the rotating plate (71) to rotate.

6. The production equipment of high-sealing ceramic inner cylinder hanging sheet according to claim 5, characterized in that: An annular locking groove (7331) is provided on the driving cylinder (733), a locking point (7332) is provided in the locking groove, and a locking plate (76) is detachably connected to the rotating plate (71), and the locking plate (76) is inserted into the locking groove and cooperates with the locking point (7332).

7. The production equipment of high-sealing ceramic inner cylinder hanging sheet according to claim 4, characterized in that: A sealing mechanism is provided on the outer ring of the station hole (200) corresponding to the discharge port of the negative pressure extrusion assembly (6) on the fixed plate (74), and the sealing mechanism includes a sealing groove (741) provided on the fixed plate (74), a corresponding pneumatic sealing ring (743) is provided in the sealing groove (741), and an annular air groove (744) is provided on the end of the fixed plate (74) facing away from the sealing groove (741), and a sealing pressure plate (742) is provided on the annular air groove (744).

8. The production equipment of high-sealing ceramic inner cylinder hanging sheet according to claim 4, characterized in that: A pressure cover (72) is correspondingly mounted on the station hole (200) of the rotating plate (71), a forming head (100) is arranged in the pressure cover (72), and a positioning portion (745) is arranged in the inner circle of the station hole (200) of the fixed plate (74) located at the discharge port of the negative pressure extrusion assembly (6).

9. The production equipment of high-sealing ceramic inner cylinder hanging sheet according to claim 1, characterized in that: The negative pressure extrusion assembly (6) comprises a plurality of detachably connected conveying cylinders (62), wherein a second auger shaft (61) is provided in the conveying cylinder (62).

10. The production equipment of high-sealing ceramic inner cylinder hanging sheet according to claim 9, characterized in that: A thread guide groove (621) is provided on the inner wall of the conveying cylinder (62), and the blades of the second auger shaft (61) extend into the thread guide groove (621) and are arranged.

Images