CN114311657A - 3D printing apparatus shaping jar seal structure - Google Patents
3D printing apparatus shaping jar seal structure Download PDFInfo
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- CN114311657A CN114311657A CN202111610606.3A CN202111610606A CN114311657A CN 114311657 A CN114311657 A CN 114311657A CN 202111610606 A CN202111610606 A CN 202111610606A CN 114311657 A CN114311657 A CN 114311657A
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- forming cylinder
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- sealing strip
- pushing piston
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The invention provides a molding cylinder sealing structure of 3D printing equipment, which belongs to the technical field of molding cylinders for 3D printer equipment and comprises a molding cylinder main body, wherein the molding cylinder main body is arranged at a molding cylinder mounting opening, an opening sealing assembly is arranged between the molding cylinder main body and the molding cylinder mounting opening, a pushing piston is arranged in the molding cylinder main body, a powder scraping assembly is arranged on the side edge of the lower end surface of the pushing piston, and a powder collecting assembly is arranged on the outer side of the molding cylinder main body. The forming cylinder solves the problems that in the prior art, a forming cylinder comprises a pushing piston, a sealing strip in the pushing piston is connected with the pushing piston mostly through a plurality of springs, the same extrusion force between each position of the sealing strip and the inner wall of the forming cylinder cannot be guaranteed, the pushing piston cannot be completely sealed in the moving process, a through hole is reserved at the bottom of the forming cylinder, powder falls in the through hole, the falling powder needs manual cleaning, and the workload of workers is increased.
Description
The technical field is as follows:
the invention belongs to the technical field of forming cylinders for 3D printer equipment, and particularly relates to a sealing structure of a forming cylinder of 3D printing equipment.
Background art:
the 3D printing is usually implemented by using a digital technology material printer, which is often used to manufacture models in the fields of mold manufacturing, industrial design, etc., and then gradually used to directly manufacture some products, and there are already parts printed by using this technology. The forming cylinder is an important component of SLM forming in 3D printing technology, and is used for placing powder to be printed and descending layer by layer during printing to perform new layer part manufacturing.
The forming cylinder comprises a material pushing piston, sealing strips in the material pushing piston are connected with the material pushing piston mostly through a plurality of springs, extrusion force received between each position of the sealing strips and the inner wall of the forming cylinder cannot be guaranteed to be the same, complete sealing in the moving process of the material pushing piston cannot be guaranteed, a through opening is reserved at the bottom of the forming cylinder, powder can fall in the through opening, the falling powder needs manual cleaning, and the workload of workers is increased.
The invention content is as follows:
the invention provides a sealing structure of a forming cylinder of 3D printing equipment, which aims to solve the problems that in the prior art, the forming cylinder comprises a pushing piston, a sealing strip in the pushing piston is connected with the pushing piston mostly through a plurality of springs, the same extrusion force between each position of the sealing strip and the inner wall of the forming cylinder cannot be ensured, the pushing piston cannot be completely sealed in the moving process, a through hole is reserved at the bottom of the forming cylinder, powder can fall from the through hole, the falling powder needs to be manually cleaned, and the workload of workers is increased.
The embodiment of the invention provides a molding cylinder sealing structure of 3D printing equipment, which comprises a molding cylinder main body, wherein the molding cylinder main body is arranged at a molding cylinder mounting opening, a lifting assembly is arranged below the molding cylinder main body, an opening sealing assembly is arranged between the molding cylinder main body and the molding cylinder mounting opening, a pushing piston is arranged in the molding cylinder main body, a powder scraping assembly is arranged on the side edge of the lower end face of the pushing piston, a push rod is arranged at the lower end of the pushing piston, and a powder collecting assembly is arranged on the outer side of the molding cylinder main body.
Through adopting above-mentioned technical scheme, the utilization pushes away the material piston can make the inner wall of shaping jar main part the same with the extrusion force that receives between the sealing strip that pushes away on the material piston, and then guarantee to push away the complete sealing of material piston removal in-process, can seal the installation department of shaping jar main part and shaping jar installing port through oral area sealing component simultaneously, guarantee the leakproofness after the installation of shaping jar main part, and through the cooperation of scraping powder subassembly and receiving the powder subassembly, can scrape the powder of the adhesion on the shaping jar main part inner wall, and utilize and receive the powder subassembly and carry out automatic collection with the powder of scraping down, be favorable to the inside clearance of shaping jar main part, staff's the amount of labour has also been reduced greatly.
Further, the avris of terminal surface is provided with the extension end under the molding cylinder installing port, the extension end passes through the fitting pin locking with the molding cylinder main part.
Through adopting above-mentioned technical scheme, through extending end and fitting pin with the stable fixing of shaping jar main part at shaping jar installing port.
Further, the mouth sealing assembly comprises a first annular mounting groove and a first annular sealing strip, the first annular mounting groove is formed in the inner wall surface of the mounting opening of the forming cylinder, the first annular sealing strip is mounted in the first annular mounting groove, and the inner circumferential surface of the first annular sealing strip is attached to the outer wall surface of the forming cylinder body.
Through adopting above-mentioned technical scheme, hug closely on the periphery wall of shaping jar main part through annular seal strip one, and then realized the leakproofness after the installation of shaping jar main part.
Furthermore, two annular mounting grooves II are formed in the side wall of the pushing piston from top to bottom, a rubber air bag is mounted on the inner wall of each annular mounting groove II, an annular sealing strip II is arranged on the outer side, located inside the annular mounting groove II, of the rubber air bag, the outer peripheral face of the rubber air bag is attached to the inner peripheral face of the annular sealing strip II, and the outer peripheral face of the annular sealing strip II is attached to the inner peripheral face of the forming cylinder main body.
Through adopting above-mentioned technical scheme, extrapolate annular sealing strip two through the rubber gasbag, make annular sealing strip two hug closely with the shaping jar main part, because the inside gas that is filled with of rubber gasbag, it is all the same that gaseous pressure that makes each department of rubber gasbag, and then let pressure between annular sealing strip two and the shaping jar main part unanimous, and can get into the heat in the shaping jar main part of printing in-process, the heat can make the rubber gasbag inflation, thereby the rubber gasbag can make annular sealing strip two with push away the better inseparable of material piston laminating, the complete sealing between material piston and the shaping jar main part has been guaranteed to push away.
Further, scrape whitewashed subassembly and include the connecting seat, go whitewashed sword and spring, the connecting seat is fixed and is being pushed away the lower wall of material piston, the connecting seat symmetry is provided with a plurality of groups, and every group connecting seat symmetry is provided with two, and is in the same group rotate between the connecting seat and be connected with and go the whitewashed sword, it is the arc structure to go the whitewashed sword towards the inner wall slope of shaping jar main part, and is adjacent go the turning of whitewashed sword lower extreme to contact, the lower wall that pushes away the material piston links to each other through the spring with the well lower part of the adjacent surface that goes the whitewashed sword.
Through adopting above-mentioned technical scheme, can make under the effect of spring tension and remove the powder sword and hug closely with the inner wall of shaping jar main part to can scrape the powder of adhesion on the shaping jar main part inner wall down along with pushing away the material piston removing the powder sword, and then accomplish the automatic clearance of shaping jar main part inner wall.
Further, the lower extreme of push rod passes the logical groove of shaping jar main part lower extreme, install the bottom sealing strip in the logical inslot of shaping jar main part lower extreme, avoid pasting mutually with the surface of push rod in the bottom sealing strip.
By adopting the technical scheme, the situation that powder leaks at the opening part of the lower end of the forming cylinder main body in the lifting process of the push rod is avoided through the lower sealing strip, and the sealing performance of the part, below the pushing piston, of the forming cylinder main body is further ensured.
Further, the lifting assembly comprises a rail, a lead screw, a sliding block, a reduction gearbox and a motor, the lead screw is rotatably connected in the rail, the sliding block is mounted on the surface of the lead screw, the lead screw is in threaded connection with a nut in the sliding block, the sliding block is connected with a push rod, the low end of the rail is connected with the reduction gearbox, the output end of the reduction gearbox is in transmission connection with one end of the lead screw, the reduction gearbox is connected with the motor, and the output end of the motor is in transmission connection with the output end of the reduction gearbox.
By adopting the technical scheme, the motor drives the reduction gearbox to rotate, the reduction gearbox drives the lead screw to rotate, the lead screw drives the sliding block to lift, and then the lifting of the material pushing piston is realized under the combined action of the sliding block and the push rod.
Further, receive powder subassembly and include opening one, hose one, powder case, fan, filter core, hose two and opening two, opening one is seted up in one side of shaping jar main part lower extreme, opening two is seted up at the opposite side of shaping jar main part lower extreme, the outside switch-on of opening one has the one end of hose one, another end switch-on of hose one has the powder case, the outside of powder case switches-on has the fan, the inside joint of powder case has the filter core, the air outlet department switch-on of fan has the one end of hose two, the other end and the opening two of hose two switch-on each other.
Through adopting above-mentioned technical scheme, the route of an inner loop formula is formed with the opening two to shaping jar main part, opening one, hose one, powder case, fan, hose two, and then inhales the filter core in the powder case with the powder in the shaping jar main part, and then realizes the automatic collection of powder, has reduced staff's the amount of labour greatly.
The invention has the beneficial effects that:
1. according to the invention, through the arrangement of the pushing piston, the rubber air bag in the pushing piston pushes the second annular sealing strip out, so that the second annular sealing strip is tightly attached to the forming cylinder main body, and because the rubber air bag is filled with gas, the pressure at each position of the rubber air bag is the same, so that the pressure between the second annular sealing strip and the forming cylinder main body is consistent, heat can enter the forming cylinder main body in the printing process, the rubber air bag can be expanded by the heat, the rubber air bag can enable the second annular sealing strip to be better and tightly attached to the pushing piston, and the complete sealing between the pushing piston and the forming cylinder main body is ensured.
2. According to the powder collecting device, the powder scraping component and the powder collecting component are matched with each other, the powder removing knife can be attached to the inner wall of the forming cylinder main body under the action of the tensile force of the spring on the powder scraping component, powder adhered to the inner wall of the forming cylinder main body can be scraped when the powder removing knife moves downwards along with the material pushing piston, and then the automatic cleaning of the inner wall of the forming cylinder main body is completed, the forming cylinder main body, the first opening, the first hose, the powder box, the fan, the second hose and the second opening on the powder collecting component form an internal circulation type passage, so that powder in the forming cylinder main body is sucked into a filter element in the powder box, the automatic collection of the powder is further realized, and the labor amount of workers is greatly reduced.
3. According to the invention, through the arrangement of the mouth part sealing assembly, the annular sealing strip I on the mouth part sealing assembly is tightly attached to the outer peripheral wall of the forming cylinder body, so that the sealing performance of the forming cylinder body after installation is realized.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and drawings.
Description of the drawings:
the accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is an overall schematic diagram of an embodiment of the present invention;
FIG. 2 is a schematic main sectional view of an embodiment of the present invention;
FIG. 3 is an enlarged view of a portion a of FIG. 2 according to an embodiment of the present invention;
FIG. 4 is an enlarged view of the embodiment of the present invention shown in FIG. 2;
FIG. 5 is an enlarged view of the embodiment of the present invention at c in FIG. 2;
reference numerals: 1. forming a cylinder body; 2. a forming cylinder mounting port; 3. a mouth seal assembly; 4. a pusher piston; 5. a powder scraping component; 6. a push rod; 7. a lifting assembly; 8. a powder collecting component; 21. an extension end; 22. a locking pin; 31. a first annular mounting groove; 32. a first annular sealing strip; 41. a second annular mounting groove; 42. a rubber air bag; 43. a second annular sealing strip; 51. a connecting seat; 52. a powder removing knife; 53. a spring; 61. a lower sealing strip; 71. a track; 72. a lead screw; 73. a slider; 74. a reduction gearbox; 75. a motor; 81. a first through opening; 82. a first hose; 83. a powder box; 84. a fan; 85. a filter element; 86. a second hose; 87. and a second port.
The specific implementation mode is as follows:
in order to make the objects, technical solutions and advantages of the technical solutions of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the specific embodiments of the present invention. Like reference symbols in the various drawings indicate like elements. It should be noted that the described embodiments are only some embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention without any inventive step, are within the scope of protection of the invention.
Referring to fig. 1-5, an embodiment of the present invention provides a forming cylinder sealing structure for a 3D printing apparatus, including a forming cylinder main body 1, the forming cylinder main body 1 is installed at a forming cylinder installation opening 2, an extending end 21 is provided at an edge side of a lower end surface of the forming cylinder installation opening 2, the extending end 21 and the forming cylinder main body 1 are locked by a locking pin 22, the forming cylinder main body 1 is stably fixed at the forming cylinder installation opening 2 by the extending end 21 and the locking pin 22, a lifting assembly 7 is provided below the forming cylinder main body 1, a mouth sealing assembly 3 is provided between the forming cylinder main body 1 and the forming cylinder installation opening 2, the mouth sealing assembly 3 includes a first annular installation groove 31 and a first annular sealing strip 32, the first annular installation groove 31 is opened on an inner wall surface of the forming cylinder installation opening 2, a first annular sealing strip 32 is installed in the first annular installation groove 31, an inner circumferential surface of the first annular sealing strip 32 is attached to an outer wall surface of the forming cylinder main body 1, the first annular sealing strip 32 is tightly attached to the outer peripheral wall of the forming cylinder body 1, so that the sealing performance of the forming cylinder body 1 after installation is realized;
the forming cylinder body 1 is internally provided with a material pushing piston 4, the side wall of the material pushing piston 4 is provided with two annular mounting grooves II 41 from top to bottom, the inner wall of each annular mounting groove II 41 is provided with a rubber air bag 42, the inner part of each annular mounting groove II 41 is positioned at the outer side of the rubber air bag 42 and is provided with an annular sealing strip II 43, the outer peripheral surface of each rubber air bag 42 is attached to the inner peripheral surface of the annular sealing strip II 43, the outer peripheral surface of each annular sealing strip II 43 is attached to the inner peripheral surface of the forming cylinder body 1, the annular sealing strips II 43 are pushed out through the rubber air bags 42, so that the annular sealing strips II 43 are attached to the forming cylinder body 1, and gas is filled in the rubber air bags 42, so that the pressure at each part of the rubber air bags 42 is the same, the pressure between the annular sealing strips II 43 and the forming cylinder body 1 is the same, and heat can enter the forming cylinder body 1 in the printing process, the rubber air bag 42 is expanded by the heat, so that the annular sealing strip II 43 is attached to the pushing piston 4 more closely by the rubber air bag 42, and the complete sealing between the pushing piston 4 and the forming cylinder main body 1 is ensured;
the side of the lower end face of the pushing piston 4 is provided with a powder scraping component 5, the powder scraping component 5 comprises a connecting seat 51, two powder removing knives 52 and a spring 53, the connecting seat 51 is fixed on the lower wall face of the pushing piston 4, the connecting seat 51 is symmetrically provided with a plurality of groups, two connecting seats 51 are symmetrically arranged in each group, the powder removing knives 52 are rotatably connected between the connecting seats 51 in the same group, the powder removing knives 52 are in an arc structure, the powder removing knives 52 incline towards the inner wall of the forming cylinder main body 1, the corners of the lower ends of the adjacent powder removing knives 52 are contacted, the lower wall face of the pushing piston 4 is connected with the middle lower part of the adjacent face of the powder removing knives 52 through the spring 53, the powder removing blade 52 is tightly attached to the inner wall of the molding cylinder body 1 under the pulling force of the spring 53, when the powder removing knife 52 moves downwards along with the pushing piston 4, powder adhered to the inner wall of the forming cylinder main body 1 can be scraped, and then the automatic cleaning of the inner wall of the forming cylinder main body 1 is completed;
the lower end of a material pushing piston 4 is provided with a push rod 6, the lower end of the push rod 6 penetrates through a through groove at the lower end of a forming cylinder body 1, a lower sealing strip 61 is arranged in the through groove at the lower end of the forming cylinder body 1, the lower sealing strip 61 is prevented from being attached to the surface of the push rod 6, the push rod 6 is ensured not to leak powder at the opening part at the lower end of the forming cylinder body 1 in the lifting process through the lower sealing strip 61, the sealing performance of the part, below the material pushing piston 4, of the forming cylinder body 1 is further ensured, a powder collecting assembly 8 is arranged on the outer side of the forming cylinder body 1, a lifting assembly 7 comprises a rail 71, a lead screw 72, a sliding block 73, a reduction box 74 and a motor 75, the lead screw 72 is rotatably connected in the rail 71, a sliding block 73 is arranged on the surface of the lead screw 72, the lead screw 72 is in threaded connection with a nut in the sliding block 73, the sliding block 73 is connected with the push rod 6, the lower end of the rail 71 is connected with the reduction box 74, the output end of the reduction box 74 is in transmission connection with one end of the lead screw 72, the reduction gearbox 74 is connected with a motor 75, the output end of the motor 75 is in transmission connection with the output end of the reduction gearbox 74, the motor 75 drives the reduction gearbox 74 to rotate, the reduction gearbox 74 drives the screw 72 to rotate, the screw 72 drives the slider 73 to lift, and then the lifting of the pushing piston 4 is realized under the combined action of the slider 73 and the push rod 6;
the powder receiving assembly 8 comprises a first through hole 81, a first hose 82, a powder box 83, a fan 84, a filter element 85, a second hose 86 and a second through hole 87, the first through hole 81 is arranged on one side of the lower end of the forming cylinder main body 1, the second through hole 87 is arranged on the other side of the lower end of the forming cylinder main body 1, one end of the first hose 82 is communicated with the outer side of the first through hole 81, the powder box 83 is communicated with the other end of the first hose 82, the fan 84 is communicated with the outer side of the powder box 83, the filter element 85 is clamped in the powder box 83, one end of the second hose 86 is communicated with the air outlet of the fan 84, the other end of the second hose 86 is communicated with the second through hole 87, the forming cylinder main body 1, the first through hole 81, the first hose 82, the powder box 83, the fan 84, the second hose 86 and the second through hole 87 form an internal circulation type passage, powder in the forming cylinder main body 1 is sucked into the filter element 85 in the powder box 83, and then automatic collection of the powder is realized, the labor capacity of workers is greatly reduced.
The implementation mode is specifically as follows: when the device is used, the mouth part of the forming cylinder body 1 is inserted into the forming cylinder mounting opening 2, the annular sealing strip I32 is tightly attached to the outer wall of the forming cylinder body 1, sealing at the mounting position of the forming cylinder body 1 is further realized, the extending end 21 at the forming cylinder mounting opening 2 is fixed with the forming cylinder body 1 through the locking pin 22, the lifting assembly 7 is fixedly mounted at a specified position, when the forming cylinder works, the motor 75 drives the reduction gearbox 74 to rotate, the reduction gearbox 74 drives the lead screw 72 to rotate, the lead screw 72 drives the slider 73 to lift, lifting of the pushing piston 4 is further realized under the combined action of the slider 73 and the push rod 6, meanwhile, the rubber air bag 42 on the pushing piston 4 pushes the annular sealing strip II 43 outwards, so that the annular sealing strip II 43 is tightly attached to the forming cylinder body 1, and the pressure at each position of the rubber air bag 42 is the same due to the gas filled in the rubber air bag 42, and then the pressure between the annular sealing strip II 43 and the forming cylinder main body 1 is consistent, and heat can enter the forming cylinder main body 1 in the printing process, and the heat can enable the rubber air bag 42 to expand, so that the rubber air bag 42 can enable the annular sealing strip II 43 to be attached to the pushing piston 4 more tightly, complete sealing between the pushing piston 4 and the forming cylinder main body 1 is ensured, the powder scraping component 5 can be driven to ascend and descend in the process of ascending and descending of the pushing piston 4, the powder removing knife 52 can be attached to the inner wall of the forming cylinder main body 1 under the action of the tension of the spring 53, and the powder adhered to the inner wall of the forming cylinder main body 1 can be scraped when the powder removing knife 52 moves downwards along with the pushing piston 4, so that automatic cleaning of the inner wall of the forming cylinder main body 1 is completed, the cleaned powder can fall to the bottom of the forming cylinder main body 1, and the forming cylinder main body 1 on the powder collecting component 8, The first opening 81, the first hose 82, the powder box 83, the fan 84, the second hose 86 and the second opening 87 form an internal circulation type passage, so that powder in the forming cylinder body 1 is sucked into the filter element 85 in the powder box 83, automatic collection of the powder is achieved, and the labor amount of workers is greatly reduced.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The utility model provides a 3D printing apparatus shaping jar seal structure, includes shaping jar main part (1), install at shaping jar installing port (2) shaping jar main part (1), the below of shaping jar main part (1) is provided with lifting unit (7), a serial communication port, be provided with oral area sealing component (3) between shaping jar main part (1) and shaping jar installing port (2), be provided with in shaping jar main part (1) and push away material piston (4), the avris that pushes away the material piston (4) terminal surface down is provided with scrapes whitewashed subassembly (5), push rod (6) are installed to the lower extreme that pushes away material piston (4), the outside of shaping jar main part (1) is provided with receives whitewashed subassembly (8).
2. The sealing structure of the forming cylinder of the 3D printing equipment according to claim 1, characterized in that the side of the lower end surface of the forming cylinder mounting opening (2) is provided with an extension end (21), and the extension end (21) is locked with the forming cylinder main body (1) through a locking pin (22).
3. The 3D printing equipment forming cylinder sealing structure is characterized in that the mouth sealing assembly (3) comprises a first annular mounting groove (31) and a first annular sealing strip (32), the first annular mounting groove (31) is formed in the inner wall surface of the forming cylinder mounting opening (2), the first annular sealing strip (32) is mounted in the first annular mounting groove (31), and the inner circumferential surface of the first annular sealing strip (32) is attached to the outer wall surface of the forming cylinder body (1).
4. The molding cylinder sealing structure of the 3D printing equipment according to claim 1, wherein two annular mounting grooves II (41) are formed in the side wall of the pushing piston (4) from top to bottom, a rubber air bag (42) is mounted on the inner wall of each annular mounting groove II (41), an annular sealing strip II (43) is arranged inside each annular mounting groove II (41) and located on the outer side of the rubber air bag (42), the outer peripheral surface of each rubber air bag (42) is attached to the inner peripheral surface of each annular sealing strip II (43), and the outer peripheral surface of each annular sealing strip II (43) is attached to the inner peripheral surface of the molding cylinder main body (1).
5. The 3D printing equipment forming cylinder sealing structure is characterized in that the powder scraping assembly (5) comprises connecting seats (51), powder removing knives (52) and springs (53), the connecting seats (51) are fixed on the lower wall surface of a material pushing piston (4), a plurality of groups of the connecting seats (51) are symmetrically arranged, two connecting seats (51) are symmetrically arranged in each group, the powder removing knives (52) are rotatably connected between the connecting seats (51) in the same group, the powder removing knives (52) are of arc structures, the powder removing knives (52) incline towards the inner wall of the forming cylinder body (1), corners of the lower ends of the adjacent powder removing knives (52) are in contact, and the lower wall surface of the material pushing piston (4) is connected with the middle lower portion of the adjacent surface of the powder removing knives (52) through the springs (53).
6. The sealing structure of the forming cylinder of the 3D printing equipment according to claim 1, wherein the lower end of the push rod (6) penetrates through a through groove at the lower end of the forming cylinder main body (1), a lower sealing strip (61) is installed in the through groove at the lower end of the forming cylinder main body (1), and the inner part of the lower sealing strip (61) is prevented from being attached to the surface of the push rod (6).
7. The 3D printing equipment forming cylinder sealing structure is characterized in that the lifting assembly (7) comprises a rail (71), a lead screw (72), a sliding block (73), a reduction gearbox (74) and a motor (75), the lead screw (72) is rotatably connected in the rail (71), the sliding block (73) is mounted on the surface of the lead screw (72), the lead screw (72) is in threaded connection with a nut in the sliding block (73), the sliding block (73) is connected with the push rod (6), the reduction gearbox (74) is connected to the lower end of the rail (71), the output end of the reduction gearbox (74) is in transmission connection with one end of the lead screw (72), the motor (75) is connected to the reduction gearbox (74), and the output end of the motor (75) is in transmission connection with the output end of the reduction gearbox (74).
8. The 3D printing apparatus forming cylinder sealing structure according to claim 1, the powder collecting component (8) comprises a first port (81), a first hose (82), a powder box (83), a fan (84), a filter element (85), a second hose (86) and a second port (87), the first through opening (81) is arranged at one side of the lower end of the forming cylinder main body (1), the second through opening (87) is arranged at the other side of the lower end of the forming cylinder main body (1), the outer side of the first port (81) is communicated with one end of a first hose (82), the other end of the first hose (82) is communicated with a powder box (83), the outer side of the powder box (83) is communicated with a fan (84), the inside of the powder box (83) is clamped with a filter element (85), the air outlet of the fan (84) is communicated with one end of a second hose (86), the other end of the second hose (86) is communicated with the second port (87).
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| CN202111610606.3A CN114311657B (en) | 2021-12-27 | 2021-12-27 | 3D printing apparatus shaping jar seal structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117052748A (en) * | 2023-10-11 | 2023-11-14 | 湖南佳一流体智控技术有限公司 | Piston type angular travel pneumatic actuator and control system |
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| CN106965427A (en) * | 2017-04-19 | 2017-07-21 | 华中科技大学 | A kind of 3D printing system |
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| CN110641021A (en) * | 2019-10-09 | 2020-01-03 | 北京易加三维科技有限公司 | Forming cylinder of 3D printer |
| CN111054919A (en) * | 2019-12-31 | 2020-04-24 | 天津镭明激光科技有限公司 | Large-scale 3D printing apparatus shaping jar |
| CN112108648A (en) * | 2020-08-21 | 2020-12-22 | 西安交通大学 | Annular powder-laying selective laser melting forming device |
| CN214814828U (en) * | 2021-02-07 | 2021-11-23 | 佛山市佛威精密机器有限公司 | Powder feeding device for SLM type metal 3D printer |
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| CN117052748A (en) * | 2023-10-11 | 2023-11-14 | 湖南佳一流体智控技术有限公司 | Piston type angular travel pneumatic actuator and control system |
| CN117052748B (en) * | 2023-10-11 | 2024-01-09 | 湖南佳一流体智控技术有限公司 | Piston type angular travel pneumatic actuator and control system |
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