CN114311657B - 3D printing apparatus shaping jar seal structure - Google Patents
3D printing apparatus shaping jar seal structure Download PDFInfo
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- CN114311657B CN114311657B CN202111610606.3A CN202111610606A CN114311657B CN 114311657 B CN114311657 B CN 114311657B CN 202111610606 A CN202111610606 A CN 202111610606A CN 114311657 B CN114311657 B CN 114311657B
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- powder
- forming cylinder
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- shaping jar
- sealing strip
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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 sealing structure of a forming cylinder of 3D printing equipment, which belongs to the technical field of forming cylinders for 3D printer equipment and comprises a forming cylinder main body, wherein the forming cylinder main body is arranged at a forming cylinder mounting opening, a mouth sealing assembly is arranged between the forming cylinder main body and the forming cylinder mounting opening, a pushing piston is arranged in the forming cylinder main body, a powder scraping assembly is arranged on the side of the lower end face of the pushing piston, and a powder collecting assembly is arranged on the outer side of the forming cylinder main body. The invention 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 through a plurality of springs, the same extrusion force is not ensured between each part of the sealing strip and the inner wall of the forming cylinder, and further, the complete sealing in the moving process of the pushing piston and the opening left at the bottom of the forming cylinder are not ensured, powder can fall in the opening, the falling powder needs to be cleaned manually, and the workload of staff is increased.
Description
Technical Field
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 printer equipment.
Background
3D printing is typically implemented using a digital technology material printer, which is often used in the field of mold manufacturing, industrial design, etc. to make models, and later gradually used for direct manufacturing of some products, parts printed using this technology are already available. The forming cylinder is an important component of SLM forming in 3D printing technology for placing the powder to be printed and descending layer by layer during printing for new layer part fabrication.
The shaping jar includes pushing away the material piston among the prior art, and sealing strip in the pushing away the material piston links to each other through a plurality of springs with pushing away the material piston mostly, and it can't guarantee that every department of sealing strip is the same with the extrusion force that receives between the inner wall of shaping jar, and then can't guarantee to push away the complete seal of material piston removal in-process, and the through-hole is left to the bottom of shaping jar simultaneously, can fall the powder in the through-hole, falls the powder and needs manual cleaning, has increased staff's work load.
Disclosure of Invention
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, sealing strips in the pushing piston are connected with the pushing piston mostly through a plurality of springs, the same extrusion force between each part of the sealing strips and the inner wall of the forming cylinder cannot be ensured, the complete sealing in the moving process of the pushing piston cannot be ensured, a through hole is reserved at the bottom of the forming cylinder, powder can fall in the through hole, manual cleaning is required for falling the powder, and the workload of staff 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 port, a lifting assembly is arranged below the molding cylinder main body, a mouth sealing assembly is arranged between the molding cylinder main body and the molding cylinder mounting port, a pushing piston is arranged in the molding cylinder main body, a powder scraping assembly is arranged on the side 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, utilize pushing away the material piston and can make the inner wall of shaping jar main part and pushing away the extrusion force that receives the material piston between the sealing strip the same, and then guarantee to push away the complete seal of material piston removal in-process, can seal the installation department of shaping jar main part and shaping jar installing port through oral area seal assembly simultaneously, ensure the leakproofness after the shaping jar main part is installed, and through the cooperation of scraping powder subassembly and receipts powder subassembly, can scrape down the powder of adhesion on the shaping jar main part inner wall, and utilize receipts powder subassembly to carry out automatic collection with the powder of scraping down, be favorable to the inside clearance of shaping jar main part, also reduced staff's the amount of labour greatly.
Further, an extending end is arranged on the side of the lower end face of the mounting opening of the forming cylinder, and the extending end and the forming cylinder body are locked through a locking pin.
Through adopting above-mentioned technical scheme, through extending end and locking pin with the shaping jar main part stable fixation at shaping jar installing port.
Further, the opening 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 peripheral 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 sealing strip one, and then realized the leakproofness after the shaping jar main part is installed.
Further, 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 of each annular mounting groove II, located on the rubber air bag, of the inner side of each annular mounting groove II, the outer peripheral surface of each rubber air bag is attached to the inner peripheral surface of each annular sealing strip II, and the outer peripheral surface of each annular sealing strip II is attached to the inner peripheral surface of the forming cylinder body.
Through adopting above-mentioned technical scheme, push out annular sealing strip two through the rubber gasbag for annular sealing strip two is hugged closely with the shaping jar main part, because the inside gas that is filled of rubber gasbag, the gas makes the pressure of every department of rubber gasbag the same, and then lets annular sealing strip two and shaping jar main part between the pressure unanimous, and can get into heat in printing in-process shaping jar main part, the heat can make the rubber gasbag expand, thereby the rubber gasbag can make annular sealing strip two and push away the better inseparable of material piston laminating, guaranteed to push away the complete seal between material piston and the shaping jar main part.
Further, the powder scraping assembly comprises a connecting seat, powder removing cutters and springs, wherein the connecting seat is fixed on the lower wall surface of the pushing piston, a plurality of groups of connecting seats are symmetrically arranged, each group of connecting seats are symmetrically arranged, the powder removing cutters are connected between the connecting seats in a rotating mode, the powder removing cutters are of arc structures, the powder removing cutters incline towards the inner wall of the forming cylinder main body and are adjacent to the corners of the lower ends of the powder removing cutters, and the lower wall surface of the pushing piston is connected with the middle lower portion of the adjacent surface of the powder removing cutters through the springs.
Through adopting above-mentioned technical scheme, can make under the effect of spring tension remove the powder sword and hug closely with the inner wall of shaping jar main part to can scrape down the powder of adhesion on the shaping jar main part inner wall when removing the powder sword and moving down along with pushing away the material piston, and then accomplish the automatic clearance of shaping jar main part inner wall.
Further, the lower end of the push rod passes through the through groove at the lower end of the molding cylinder main body, a lower sealing strip is arranged in the through groove at the lower end of the molding cylinder main body, and the inner part of the lower sealing strip is prevented from being attached to the surface of the push rod.
Through adopting above-mentioned technical scheme, guarantee through the lower sealing strip that the push rod can not appear leaking the situation of powder at the oral area of lift in-process shaping jar main part lower extreme, and then guarantee the leakproofness that shaping jar main part is located pushing away material piston below part.
Further, the lifting assembly comprises a track, a screw rod, a sliding block, a reduction box and a motor, the screw rod is rotationally connected to the track, the sliding block is arranged on the surface of the screw rod, the screw rod is in threaded connection with a nut in the sliding block, the sliding block is connected with a push rod, the reduction box is connected to the lower end of the track, the output end of the reduction box is in transmission connection with one end of the screw rod, the motor is connected to the reduction box, and the output end of the motor is in transmission connection with the output end of the reduction box.
Through adopting above-mentioned technical scheme, the motor drives the reducing gear box and rotates, and the reducing gear box drives the lead screw rotation, and the lead screw drives the slider and goes up and down, and then realizes pushing away the lift of material piston under the combined action of slider and push rod.
Further, receive powder subassembly includes port one, hose one, powder case, fan, filter core, hose two and port two, port one is offered in one side of shaping jar main part lower extreme, port two is offered in the opposite side of shaping jar main part lower extreme, the outside switch-on of port one has the one end of hose one, the other end switch-on of hose one has the powder case, the outside switch-on of powder case 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 two intercommunication of port of hose two.
Through adopting above-mentioned technical scheme, shaping jar main part, opening one, hose one, powder case, fan, hose two and opening two form an inner loop's passageway, and then inhale the powder in the shaping jar main part in the filter core in the powder case, and then realize the automatic collection of powder, reduced staff's the amount of labour greatly.
The beneficial effects of the invention are as follows:
1. according to the invention, through the arrangement of the pushing piston, the rubber air bag in the pushing piston pushes out the annular sealing strip II, so that the annular sealing strip II is clung to the forming cylinder main body, and as the gas is filled in the rubber air bag, the pressure of each part of the rubber air bag is the same, so that the pressure between the annular sealing strip II and the forming cylinder main body is consistent, heat can be introduced into the forming cylinder main body in the printing process, the rubber air bag can be expanded by the heat, the annular sealing strip II can be clung to the pushing piston better tightly, and the complete sealing between the pushing piston and the forming cylinder main body is ensured.
2. According to the invention, through the mutual matching of the powder scraping component and the powder collecting component, the powder removing knife is tightly attached to the inner wall of the molding cylinder main body under the action of the spring tension force on the powder scraping component, and powder adhered on the inner wall of the molding cylinder main body can be scraped down when the powder removing knife moves downwards along with the pushing piston, so that the inner wall of the molding cylinder main body is automatically cleaned, an internal circulation type passage is formed by the molding 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, so that powder in the molding cylinder main body is sucked into a filter element in the powder box, the automatic collection of the powder is realized, and the labor amount of workers is greatly reduced.
3. According to the invention, through the arrangement of the opening sealing assembly, the annular sealing strip on the opening sealing assembly is tightly attached to the peripheral wall of the molding cylinder main body, so that the tightness of the molding cylinder main body after being installed 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.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is an overall schematic of an embodiment of the present invention;
FIG. 2 is a schematic illustration of a main section of an embodiment of the present invention;
FIG. 3 is an enlarged schematic view of the portion a in FIG. 2 according to an embodiment of the present invention;
FIG. 4 is an enlarged schematic view of the embodiment of the present invention shown at b in FIG. 2;
FIG. 5 is an enlarged schematic view of the portion c in FIG. 2 according to an embodiment of the present invention;
reference numerals: 1. a forming cylinder body; 2. a molding cylinder mounting port; 3. a mouth seal assembly; 4. pushing the material piston; 5. a powder scraping assembly; 6. a push rod; 7. a lifting assembly; 8. a powder collecting component; 21. an extension end; 22. a locking pin; 31. an annular mounting groove I; 32. an annular sealing strip I; 41. annular mounting grooves II; 42. a rubber air bag; 43. annular sealing strips II; 51. a connecting seat; 52. a powder removing knife; 53. a spring; 61. a lower sealing strip; 71. a track; 72. a screw rod; 73. a slide block; 74. a reduction gearbox; 75. a motor; 81. a first through opening; 82. a first hose; 83. a powder box; 84. a blower; 85. a filter element; 86. a second hose; 87. and a second through hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the technical solutions of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments of the present invention. Like reference numerals in the drawings denote like parts. It should be noted that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be made by a person skilled in the art without creative efforts, based on the described embodiments of the present invention fall within the protection scope of the present invention.
Referring to fig. 1-5, an embodiment of the invention provides a molding cylinder sealing structure of a 3D printing device, which comprises a molding cylinder main body 1, wherein the molding cylinder main body 1 is installed at a molding cylinder installation opening 2, an extension end 21 is arranged at the side of the lower end surface of the molding cylinder installation opening 2, the extension end 21 and the molding cylinder main body 1 are locked by a locking pin 22, the molding cylinder main body 1 is stably fixed at the molding cylinder installation opening 2 by the extension end 21 and the locking pin 22, a lifting assembly 7 is arranged below the molding cylinder main body 1, an opening sealing assembly 3 is arranged between the molding cylinder main body 1 and the molding cylinder installation opening 2, the opening sealing assembly 3 comprises an annular installation groove I31 and an annular sealing strip I32, the annular installation groove I31 is formed on the inner wall surface of the molding cylinder installation opening 2, the annular sealing strip I32 is installed in the annular installation groove I31, the inner circumferential surface of the annular sealing strip I32 is adhered to the outer wall surface of the molding cylinder main body 1, and the sealing performance after the molding cylinder main body 1 is installed is further realized by the annular sealing strip I32 being tightly adhered to the outer circumferential wall of the molding cylinder main body 1;
the forming cylinder body 1 is internally provided with a pushing piston 4, 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 the annular mounting groove II 41, an annular sealing strip II 43 is arranged on the outer side of the rubber air bag 42 in the annular mounting groove II 41, the outer peripheral surface of the rubber air bag 42 is attached to the inner peripheral surface of the annular sealing strip II 43, the outer peripheral surface of the annular sealing strip II 43 is attached to the inner peripheral surface of the forming cylinder body 1, the annular sealing strip II 43 is pushed outwards through the rubber air bag 42, so that the annular sealing strip II 43 is attached to the forming cylinder body 1, the pressure of each part of the rubber air bag 42 is the same due to the fact that the gas is filled in the rubber air bag 42, the pressure between the annular sealing strip II 43 and the forming cylinder body 1 is consistent, heat can be introduced into the forming cylinder body 1 in the printing process, and the rubber air bag 42 can enable the annular sealing strip II 43 to be attached to the pushing piston 4 to be better and tightly attached to the forming cylinder body 1, and complete sealing between the pushing piston 4 and the forming cylinder 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, a powder removing knife 52 and a spring 53, the connecting seat 51 is fixed on the lower wall face of the pushing piston 4, a plurality of groups of connecting seats 51 are symmetrically arranged, each group of connecting seats 51 is symmetrically provided with two groups of connecting seats, the powder removing knife 52 is rotationally connected between the same groups of connecting seats 51, the powder removing knife 52 is in an arc-shaped structure, the powder removing knife 52 inclines 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 knife 52 through the spring 53, the powder removing knife 52 can be clung to the inner wall of the forming cylinder main body 1 under the action of the tension of the spring 53, and powder adhered on 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, and automatic cleaning of the inner wall of the forming cylinder main body 1 is finished;
the lower end of the pushing piston 4 is provided with a push rod 6, the lower end of the push rod 6 passes through a through groove at the lower end of the forming cylinder main body 1, a lower sealing strip 61 is arranged in the through groove at the lower end of the forming cylinder main body 1, the inside of the lower sealing strip 61 is prevented from being attached to the surface of the push rod 6, the condition that powder leakage does not occur at the opening of the lower end of the forming cylinder main body 1 in the lifting process of the push rod 6 is ensured by the lower sealing strip 61, the tightness of the part of the forming cylinder main body 1 below the pushing piston 4 is ensured, the outer side of the forming cylinder main body 1 is provided with a powder collecting component 8, the lifting component 7 comprises a track 71, a lead screw 72, a sliding block 73, a reduction box 74 and a motor 75, the track 71 is rotationally connected with the lead screw 72, the surface of the lead screw 72 is provided with the sliding block 73, the lead screw 72 is in threaded connection with a screw in the sliding block 73, the lower end of the sliding block 73 is connected with the push rod 6, the lower end of the reduction box 74 is in a transmission connection with one end of the lead screw 72, the output end of the motor 75 is in transmission connection with the reduction box 74, the output end of the motor 75 is further transmission connection with the output end of the reduction box 74, the motor 75 is in transmission connection with the output end of the reduction box 74, the motor 75 drives the reduction box 74, and the motor 75 drives the reduction box 74 and the lead screw 72 to rotate, and the lead screw 72 and the lifting and the push rod 4 is driven to move down and move down and down the lead screw 4.
The powder collecting assembly 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, wherein the first port 81 is formed in one side of the lower end of the molding cylinder body 1, the second port 87 is formed in the other side of the lower end of the molding cylinder body 1, one end of the first hose 82 is connected to the outer side of the first port 81, the other end of the first hose 82 is connected to the powder box 83, the fan 84 is connected to the outer side of the powder box 83, the filter element 85 is connected to the inner side of the powder box 83 in a clamping mode, one end of the second hose 86 is connected to an air outlet of the fan 84, the other end of the second hose 86 is connected to the second port 87, the molding cylinder body 1, the first port 81, the first hose 82, the powder box 83, the fan 84, the second hose 86 and the second port 87 form an internal circulation type passage, and then powder in the molding cylinder body 1 is sucked into the filter element 85 in the powder box 83, and automatic collection of powder is achieved, and the labor of workers is greatly reduced.
The implementation mode specifically comprises the following steps: when in use, the opening part of the molding cylinder main body 1 is inserted into the molding cylinder mounting opening 2, the annular sealing strip I32 is tightly attached to the outer wall of the molding cylinder main body 1, so that the sealing of the mounting part of the molding cylinder main body 1 is realized, the extending end 21 at the molding cylinder mounting opening 2 is fixed with the molding cylinder main body 1 through the locking pin 22, the lifting assembly 7 is fixedly arranged at a specified position, when the molding cylinder works, 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 sliding block 73 to lift, the lifting of the pushing piston 4 is realized under the combined action of the sliding block 73 and the pushing rod 6, the annular sealing strip II 43 is pushed outwards by the rubber air bag 42 on the pushing piston 4, so that the annular sealing strip II 43 is tightly attached to the molding cylinder main body 1, and the pressure of each part of the rubber air bag 42 is the same due to the fact that the air is filled in the rubber air bag 42, the pressure between the annular sealing strip II 43 and the molding cylinder main body 1 is consistent, heat can enter the molding cylinder main body 1 in the printing process, the heat can enable the rubber air bag 42 to expand, the rubber air bag 42 enables the annular sealing strip II 43 to be attached to the pushing piston 4 better and more tightly, complete sealing between the pushing piston 4 and the molding cylinder main body 1 is guaranteed, the scraping assembly 5 is carried to lift in the lifting process of the pushing piston 4, the powder removing knife 52 can be attached to the inner wall of the molding cylinder main body 1 under the action of the tension force of the spring 53, powder adhered to the inner wall of the molding cylinder main body 1 can be scraped when the powder removing knife 52 moves downwards along with the pushing piston 4, automatic cleaning of the inner wall of the molding cylinder main body 1 is completed, the cleaned powder can fall to the bottom of the molding cylinder main body 1, and the molding cylinder main body 1 on the powder collecting assembly 8 is removed at the moment, 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 passage, so that powder in the molding cylinder main body 1 is sucked into the filter element 85 in the powder box 83, automatic collection of the powder is realized, and the labor capacity of staff is greatly reduced.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. The utility model provides a 3D printing apparatus shaping jar seal structure, includes shaping jar main part (1), shaping jar main part (1) are installed at shaping jar installing port (2), the below of shaping jar main part (1) is provided with hoisting assembly (7), a serial communication port, be provided with oral area seal assembly (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 of pushing away material piston (4) lower extreme face is provided with scrapes powder subassembly (5), push rod (6) are installed to the lower extreme of pushing away material piston (4), the outside of shaping jar main part (1) is provided with receipts powder subassembly (8);
the mouth sealing assembly (3) comprises an annular mounting groove I (31) and an annular sealing strip I (32), the annular mounting groove I (31) is formed in the inner wall surface of the molding cylinder mounting opening (2), the annular sealing strip I (32) is mounted in the annular mounting groove I (31), and the inner peripheral surface of the annular sealing strip I (32) is attached to the outer wall surface of the molding cylinder main body (1);
two annular mounting grooves II (41) are formed in the side wall of the pushing piston (4) from top to bottom, rubber air bags (42) are mounted on the inner wall of the annular mounting grooves II (41), annular sealing strips II (43) are arranged in the annular mounting grooves II (41) and located on the outer sides of the rubber air bags (42), the outer peripheral surfaces of the rubber air bags (42) are attached to the inner peripheral surfaces of the annular sealing strips II (43), and the outer peripheral surfaces of the annular sealing strips II (43) are attached to the inner peripheral surfaces of the forming cylinder main bodies (1);
the powder scraping assembly (5) comprises a connecting seat (51), a powder removing knife (52) and a spring (53), wherein the connecting seat (51) is fixed on the lower wall surface of a pushing piston (4), a plurality of groups of connecting seats (51) are symmetrically arranged, each group of connecting seats (51) is symmetrically arranged in two, the powder removing knife (52) is rotationally connected between the same groups of connecting seats (51), the powder removing knife (52) is in an arc-shaped structure, the powder removing knife (52) inclines towards the inner wall of a forming cylinder main body (1), corners adjacent to the lower ends of the powder removing knife (52) are contacted, and the lower wall surface of the pushing piston (4) is connected with the middle lower part of the adjacent surface of the powder removing knife (52) through the spring (53);
receive powder subassembly (8) including opening one (81), hose one (82), powder case (83), fan (84), filter core (85), hose two (86) and opening two (87), one side at shaping jar main part (1) lower extreme is seted up to opening one (81), the opposite side at shaping jar main part (1) lower extreme is seted up to opening two (87), the outside switch-on of opening one (81) has the one end of hose one (82), the other end switch-on of hose one (82) has powder case (83), the outside switch-on of powder case (83) has fan (84), the inside joint of powder case (83) has filter core (85), the air outlet department switch-on of fan (84) has the one end of hose two (86), the other end and the mutual switch-on of opening two (87) of hose two (86).
2. The 3D printing apparatus forming cylinder sealing structure according to claim 1, wherein an extending end (21) is provided on an edge side of a lower end surface of the forming cylinder mounting port (2), and the extending end (21) is locked with the forming cylinder main body (1) through a locking pin (22).
3. 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 body (1), a lower sealing strip (61) is arranged in the through groove at the lower end of the forming cylinder body (1), and the inner wall surface of the lower sealing strip (61) is attached to the surface of the push rod (6).
4. The 3D printing equipment forming cylinder sealing structure according to claim 1, wherein the lifting assembly (7) comprises a track (71), a screw rod (72), a sliding block (73), a reduction gearbox (74) and a motor (75), the screw rod (72) is rotationally connected with the track (71), the sliding block (73) is mounted on the surface of the screw rod (72), the screw rod (72) is in threaded connection with a screw nut in the sliding block (73), the sliding block (73) is connected with the push rod (6), the reduction gearbox (74) is connected with the lower end of the track (71), the output end of the reduction gearbox (74) is in transmission connection with one end of the screw rod (72), and the motor (75) is connected with the output end of the reduction gearbox (74) in transmission connection.
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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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| CN202111610606.3A CN114311657B (en) | 2021-12-27 | 2021-12-27 | 3D printing apparatus shaping jar seal structure |
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| CN114311657B true CN114311657B (en) | 2023-08-08 |
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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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