CN114734635A - Powder feeding structure of 3D printing equipment - Google Patents
Powder feeding structure of 3D printing equipment Download PDFInfo
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- CN114734635A CN114734635A CN202111630302.3A CN202111630302A CN114734635A CN 114734635 A CN114734635 A CN 114734635A CN 202111630302 A CN202111630302 A CN 202111630302A CN 114734635 A CN114734635 A CN 114734635A
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- scraper
- hole
- fixed
- powder feeding
- button
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/205—Means for applying layers
- B29C64/214—Doctor blades
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
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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 powder feeding structure of a 3D printing device, which belongs to the technical field of powder feeding of 3D printing devices and comprises a forming chamber, wherein a forming cylinder mounting port and a powder cylinder mounting port are respectively arranged on two sides of the lower end of the forming chamber, a fixed block is arranged on the outer wall surface of a sliding block, the sliding block is connected with the fixed block through a fixed structure, a linkage structure is arranged between a disassembling structure and the fixed structure, a scraper is arranged below a cutter rest, and the scraper is connected with the cutter rest through a connecting structure. The powder feeding device solves the problems that in the prior art, a scraper on a powder feeding structure of a 3D printing device is worn after being used for a long time, so that a gap between the scraper and the bottom wall of a forming chamber is too large, the powder feeding of the scraper is not facilitated at the moment, the scraper needs to be replaced, the generation efficiency of the printing device is delayed, the use cost is also improved, the scraper is fixed in a bolt mode mostly, the quick disassembly and assembly of the scraper are not facilitated, and the replacement of the scraper is not facilitated.
Description
The technical field is as follows:
the invention belongs to the technical field of powder feeding of 3D printer equipment, and particularly relates to a powder feeding structure of 3D printer equipment.
Background art:
3D printing, one of the rapid prototyping technologies, also known as additive manufacturing, is a technology for constructing an object by using a powder-like bondable material such as metal or plastic and by printing layer by layer based on a digital model file. SLM shaping includes the powder feeding structure in the shaping room among the 3D printing technique, and it utilizes drive assembly to drive the scraper and removes, sends the powder that withdraws from in the powder jar to the shaping jar and prints.
The situation that wearing and tearing can appear in the long-time use of the structural scraper of 3D printing apparatus powder feeding among the prior art, and then lead to the clearance between scraper and the shaping room diapire too big, be unfavorable for the powder feeding of scraper this moment, consequently need change the scraper, not only delayed printing apparatus's generation efficiency, also improved use cost, and the mode that the scraper adopted the bolt mostly fixes, be unfavorable for the quick assembly disassembly of scraper, and then the change of the scraper of not being convenient for.
The invention content is as follows:
the invention provides a powder feeding structure of a 3D printing device, which aims to solve the problems that in the prior art, a scraper on the powder feeding structure of the 3D printing device is abraded after being used for a long time, so that a gap between the scraper and the bottom wall of a forming chamber is too large, powder feeding of the scraper is not facilitated at the moment, the scraper needs to be replaced, the generation efficiency of the printing device is delayed, the use cost is also improved, most of the scrapers are fixed in a bolt mode, quick disassembly and assembly of the scraper are not facilitated, and replacement of the scraper is not facilitated.
The embodiment of the invention provides a powder feeding structure of 3D printing equipment, which comprises a forming chamber, wherein a forming cylinder mounting port and a powder cylinder mounting port are respectively arranged on two sides of the lower end of the forming chamber, a guide rail is arranged on the inner avoiding surface of the forming chamber, a sliding block is arranged on the guide rail, a fixed block is arranged on the outer wall surface of the sliding block, the sliding block is connected with the fixed block through a fixed structure, a dismounting structure is arranged on the side of the fixed structure, a linkage structure is arranged between the dismounting structure and the fixed structure, a knife rest is arranged on the wall surface, away from the sliding block, of the fixed block, a scraper is arranged below the knife rest, and the scraper is connected with the knife rest through a connecting structure.
Through adopting above-mentioned technical scheme, can compensate the wearing and tearing of scraper downwards automatically through connection structure for the scraper pastes with the diapire of shaping room all the time, has prolonged the change cycle of scraper greatly, has both guaranteed printing apparatus's generation efficiency, has also reduced printing apparatus's use cost, and the dismouting of the scraper of being convenient for, simultaneously through fixed knot structure, the mutual supporting of dismantlement structure and linkage structure, can directly adopt the quick dismouting that the scraper structure was realized to the push type, and then be convenient for take out the scraper and change.
Further, the slider is connected with the guide rail in a sliding mode, a concave groove is formed in a wall face, away from the guide rail, of the slider, the concave groove is connected with the fixing block in a clamping mode, and the fixing block is of an L-shaped structure.
Through adopting above-mentioned technical scheme, utilize the block of the concave groove of being convenient for fixed block on the slider, and then the installation of the scraper structure of being convenient for.
Further, fixed knot constructs and is provided with two sets ofly about the vertical central line symmetry of slider, every group fixed knot constructs and is provided with two, fixed knot constructs including through-hole one, locking post, reset spring one and spacing hole, through-hole one is seted up on the limit wall of slider, the locking post is installed in the cavity on slider limit wall, through-hole one and the cavity switch-on the slider limit wall, one end of locking post stretches into through-hole one, the locking post is the cruciform structure, the surface of locking post one end is provided with reset spring one, spacing hole is seted up on the both sides wall of fixed block, the head block of the locking post other end is in spacing hole.
Through adopting above-mentioned technical scheme, can realize through reset spring one that one end of locking post is towards spacing hole activity of making a round trip, and then be convenient for through locking the locking and the dismantlement of post to slider and scraper structure.
Furthermore, the two disassembly structures are symmetrically arranged on the vertical center line of the slider, each disassembly structure comprises a second through hole, a button, a guide post and a second reset spring, the second through hole is formed in the middle of the two side walls of the slider and communicated with the cavity in the side wall of the slider, the button is movably buckled in the second through hole and is of a T-shaped structure, one end of the button penetrates through the second through hole, the other end of the button is located in the cavity in the side wall of the slider and is provided with a movable opening, the guide post is connected in the movable opening of the button in a sliding mode, one end, located outside the button, of the guide post is fixedly connected with the slider, and the second reset spring is sleeved on the outer peripheral face of the guide post.
Through adopting above-mentioned technical scheme, the one end of being convenient for the button is made a round trip to the guide post activity under the effect of two elastic forces of reset spring, and then is convenient for drive the locking post activity through the cooperation of button and linkage structure, and then has realized the quick assembly disassembly of scraper structure.
Further, linkage structure is provided with two sets ofly, every group linkage structure is provided with two, linkage structure includes connecting seat, gangbar, pivot one, support and pivot two, the connecting seat is provided with two, one the avris at the locking post is fixed to the connecting seat, another the avris at the button is fixed to the connecting seat, two connecting seat mutual correspondences, two be provided with the gangbar between the connecting seat, the both ends of gangbar respectively with two the connecting seat rotates through one of two pivots to be connected, the one end of support is fixed in the cavity of slider limit wall, support and gangbar one-to-one, the support is concave font structure, the other end of support is connected through two rotations of pivot with the intermediate position of gangbar.
Through adopting above-mentioned technical scheme, realize the linkage of the locking post in the fixed knot structure and the button in the dismantlement structure through linkage structure, and then realize the push type dismouting of scraper structure.
Further, connection structure equidistant is provided with the multiunit, connection structure includes ring, guide bar, locking lid and activity hole, the up end at the scraper is fixed to the ring, be provided with the screw thread on the outer peripheral face of ring, the block has the one end of guide bar in the ring, the guide bar is I shape structure, the outside of ring is provided with the locking lid, be provided with on the inner peripheral surface of locking lid with ring assorted screw thread, ring and locking lid threaded connection, guide bar and locking lid lock joint, the lower extreme at the knife rest is seted up to the activity hole, the upper and lower both ends of activity hole are link up, the oral area and the activity hole of locking lid are passed in proper order to the upper end of guide bar, the guide bar top directly is greater than the diameter in activity hole.
Through adopting above-mentioned technical scheme, the accessible rotates the dismouting that locking lid realized locking lid, and then is convenient for pull down the scraper alone from the scraper structure and change, has reduced the cost that whole scraper structure changed greatly.
Furthermore, the connecting structure further comprises a compression spring, the compression spring is sleeved on the outer peripheral surface of the guide rod and is positioned between the locking cover and the tool rest, and two ends of the compression spring are respectively pressed on the upper wall surface of the locking cover and the lower wall surface of the tool rest.
Through adopting above-mentioned technical scheme, elasticity through pressure spring can make the lower wall face of scraper paste with the diapire face of forming chamber all the time, and then can carry out automatic compensation to the wearing and tearing of scraper, and then prolonged the cycle that the scraper was changed greatly.
The invention has the beneficial effects that:
1. according to the invention, through the arrangement of the connecting structure, the locking cover can be disassembled and assembled by rotating the locking cover, so that the scraper can be conveniently and independently disassembled from the scraper structure for replacement, the replacement cost of the whole scraper structure is greatly reduced, the lower wall surface of the scraper can be always attached to the bottom wall surface of the forming chamber through the elasticity of the compression spring, the abrasion of the scraper can be automatically compensated, and the replacement period of the scraper is greatly prolonged.
2. According to the scraper structure, the fixing structure, the dismounting structure and the linkage structure are arranged, so that the scraper structure can be quickly dismounted and mounted by directly adopting a pressing mode, the scraper can be conveniently taken out and replaced, and the scraper structure is very convenient to use.
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 a schematic view of the internal structure of a forming chamber according to an embodiment of the present invention;
FIG. 2 is a schematic view of a mounting structure of a scraper structure according to an embodiment of the present invention;
FIG. 3 is an enlarged schematic view of a portion a of FIG. 1 according to an embodiment of the present invention;
FIG. 4 is a schematic view of a fixing structure, a detaching structure and a linkage structure according to an embodiment of the present invention;
FIG. 5 is a schematic view of a fixing block according to an embodiment of the present invention;
FIG. 6 is a schematic structural view of a portion of a powder cylinder at a mounting port of the powder cylinder according to an embodiment of the present invention;
reference numerals: 1. a forming chamber; 2. a forming cylinder mounting port; 3. a powder cylinder mounting port; 4. a guide rail; 5. a slider; 6. a fixed structure; 7. disassembling the structure; 8. a linkage structure; 9. a fixed block; 10. a tool holder; 11. a scraper; 12. a connecting structure; 61. a first through hole; 62. a locking post; 63. a first return spring; 64. a limiting hole; 71. a second through hole; 72. a button; 73. a guide post; 74. a second return spring; 81. a connecting seat; 82. a linkage rod; 83. a first shaft pin; 84. a support; 85. a second shaft pin; 121. a circular ring; 122. a guide bar; 123. a locking cover; 124. a movable hole; 125. compressing the spring.
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. 1-6, an embodiment of the present invention provides a powder feeding structure for a 3D printing apparatus, including a forming chamber 1, where two sides of a lower end of the forming chamber 1 are respectively provided with a forming cylinder mounting port 2 and a powder cylinder mounting port 3, an inner avoiding surface of the forming chamber 1 is provided with a guide rail 4, the guide rail 4 is provided with a slider 5, the slider 5 is slidably connected with the guide rail 4, a wall surface of the slider 5 away from the guide rail 4 is provided with a concave groove, the concave groove is connected with a fixed block 9 in a clamping manner, the fixed block 9 is in an L-shaped structure, the concave groove on the slider 5 is used to facilitate the clamping of the fixed block 9, so as to facilitate the installation of a scraper structure, the outer wall surface of the slider 5 is provided with the fixed block 9, the slider 5 is connected with the fixed block 9 through a fixed structure 6, the fixed structures 6 are symmetrically provided with two groups about a vertical center line of the slider 5, each group of fixed structures 6 is provided with two fixed structures, each fixed structure 6 includes a through hole one 61, The scraper structure locking device comprises a locking column 62, a first return spring 63 and a limiting hole 64, wherein the first through hole 61 is formed in the side wall of a slider 5, the locking column 62 is installed in a cavity in the side wall of the slider 5, the first through hole 61 is communicated with the cavity in the side wall of the slider 5, one end of the locking column 62 extends into the first through hole 61, the locking column 62 is of a cross-shaped structure, the first return spring 63 is arranged on the surface of one end of the locking column 62, the limiting hole 64 is formed in the two side walls of a fixing block 9, the head of the other end of the locking column 62 is clamped in the limiting hole 64, back and forth movement of one end of the locking column 62 towards the limiting hole 64 can be achieved through the first return spring 63, the slider 5 and the scraper structure can be conveniently locked and disassembled through the locking column 62, a disassembling structure 7 is arranged on the side of the fixing structure 6, the disassembling structure 7 is symmetrically arranged with respect to the vertical central line of the slider 5, and the disassembling structure 7 comprises a second through hole 71 and a button 72, The guide post 73 is connected with a second return spring 74, the second through hole 71 is arranged in the middle of two side walls of the slider 5, the second through hole 71 is communicated with a cavity on the side wall of the slider 5, the button 72 is movably buckled in the second through hole 71, the button 72 is in a T-shaped structure, one end of the button 72 penetrates through the second through hole 71, the other end of the button 72 is positioned in the cavity on the side wall of the slider 5 and is provided with a movable opening, the movable opening of the button 72 is connected with the guide post 73 in a sliding manner, one end of the guide post 73 positioned outside the button 72 is fixedly connected with the slider 5, the outer peripheral surface of the guide post 73 is sleeved with the second return spring 74, one end of the button 72 is convenient to move back and forth towards the guide post 73 under the action of the elastic force of the second return spring 74, the locking post 62 is convenient to move by being driven by the cooperation of the button 72 and the linkage structure 8, so as to realize the quick assembly and disassembly of the scraper structure, the disassembly structure 7 is connected with the fixed structure 6 through the linkage structure 8, the linkage structure 8 is provided with two groups, each group of linkage structure 8 is provided with two groups, the linkage structure 8 comprises two connecting seats 81, two linkage rods 82, a first shaft pin 83, two brackets 84 and a second shaft pin 85, the two connecting seats 81 are provided, one connecting seat 81 is fixed on the side of the locking column 62, the other connecting seat 81 is fixed on the side of the button 72, the two connecting seats 81 are mutually corresponding, the linkage rod 82 is arranged between the two connecting seats 81, the two ends of the linkage rod 82 are respectively and rotatably connected with the two connecting seats 81 through the two first shaft pins 83, one end of the bracket 84 is fixed in a cavity of the side wall of the sliding block 5, the brackets 84 are in one-to-one correspondence with the linkage rods 82, the brackets 84 are in a concave structure, the other end of the bracket 84 is rotatably connected with the middle position of the linkage rod 82 through the second shaft pins 85, the linkage of the locking column 62 in the fixed structure 6 and the button 72 in the dismounting structure 7 are realized through the linkage structure 8, thereby realizing the push type disassembly and assembly of the scraper structure.
A tool holder 10 is installed on a wall surface of the fixed block 9 far away from the slider 5, a scraper 11 is arranged below the tool holder 10, the scraper 11 is connected with the tool holder 10 through a connecting structure 12, a plurality of groups of connecting structures 12 are arranged at equal intervals, the connecting structure 12 comprises a circular ring 121, a guide rod 122, a locking cover 123 and a movable hole 124, the circular ring 121 is fixed on the upper end surface of the scraper 11, threads are arranged on the outer circumferential surface of the circular ring 121, one end of the guide rod 122 is clamped in the circular ring 121, the guide rod 122 is in an I-shaped structure, the locking cover 123 is arranged on the outer side of the circular ring 121, threads matched with the circular ring 121 are arranged on the inner circumferential surface of the locking cover 123, the circular ring 121 is in threaded connection with the locking cover 123, the guide rod 122 is fastened with the locking cover 123, the movable hole 124 is arranged at the lower end of the tool holder 10, the upper end and the lower end of the movable hole 124 are both through, the upper end of the guide rod 122 sequentially penetrates through the opening and the movable hole 124 of the locking cover 123, the top of the guide rod 122 is directly larger than the diameter of the movable hole 124, the locking cover 123 can be rotated to disassemble and assemble the locking cover 123, so that the scraper 11 can be detached from the scraper structure for replacement, the scraper structure comprises the fixing block 9, the knife rest 10, the scraper 11 and the connecting structure 12, the cost for replacing the whole scraper structure is greatly reduced, the connecting structure 12 further comprises a compression spring 125, the compression spring 125 is sleeved on the peripheral surface of the guide rod 122, the compression spring 125 is located between the locking cover 123 and the knife rest 10, two ends of the compression spring 125 are respectively pressed on the upper wall surface of the locking cover 123 and the lower wall surface of the knife rest 10, the lower wall surface of the scraper 11 can be attached to the bottom wall surface of the forming chamber 1 all the time through the elasticity of the compression spring 125, automatic compensation can be performed on the abrasion of the scraper, and the replacement period of the scraper 11 is greatly prolonged.
The implementation mode specifically comprises the following steps: when the scraper is used, the lower wall surface of the scraper 11 is always attached to the bottom wall of the forming chamber 1 under the action of the compression spring 125, when the scraper 11 is abraded, the compression spring 125 automatically pushes the scraper 11 to move downwards, so that the lower wall surface of the scraper 11 is attached to the bottom wall of the forming chamber 1, automatic compensation of the scraper 11 on abrasion is realized, when the abrasion degree of the scraper 11 is large and needs to be replaced, the button 72 is pressed, the second reset spring 74 contracts, the button 72 drives one end of the linkage rod 82 to rotate around the bracket 84, so that the other end of the linkage rod 82 drives the locking column 62 to move outwards, the first reset spring 63 contracts, one end of the locking column 62 moves out of the limiting hole 64, the scraper structure is lifted upwards, the scraper structure is separated from the sliding block 5, then the button 72 is released, the locking cover 123 is rotated, the locking cover 123 is screwed off the ring 121, the scraper 11 is taken down, and a new scraper 11 is installed, ring 121 card on the scraper 11 is at the lower extreme of guide bar 122, and screw locking lid 123 and ring 121, realize the quick installation of scraper 11, at extrusion button 72, make in the cavity of locking post 62 one end income slider 5, with the structural fixed block 9 block of scraper in the concave groove of slider 5, loosen button 72, make locking post 62 and button 72 reset under the effect of reset spring 63 and reset spring two 74, gangbar 82 resets along with locking post 62 and button 72 together, and then locking post 62 inserts spacing hole 64 and fix the scraper structure can, the dismouting of whole scraper structure and scraper is all very convenient, the convenient degree when having improved the use greatly.
The foregoing shows and describes the general principles and features of the present invention, together with the 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 (7)
1. A powder feeding structure of a 3D printing device comprises a forming chamber (1), wherein a forming cylinder mounting opening (2) and a powder cylinder mounting opening (3) are respectively arranged on two sides of the lower end of the forming chamber (1), a guide rail (4) is arranged on an inner avoiding surface of the forming chamber (1), it is characterized in that the guide rail (4) is provided with a slide block (5), the outer wall surface of the slide block (5) is provided with a fixed block (9), the sliding block (5) is connected with the fixed block (9) through a fixed structure (6), the side of the fixed structure (6) is provided with a disassembly structure (7), the disassembly structure (7) and the fixed structure (6) are connected through a linkage structure (8), a tool rest (10) is arranged on one wall surface of the fixed block (9) far away from the slide block (5), a scraper (11) is arranged below the knife rest (10), and the scraper (11) is connected with the knife rest (10) through a connecting structure (12).
2. The powder feeding structure of the 3D printing equipment according to claim 1, wherein the sliding block (5) is connected with the guide rail (4) in a sliding manner, a wall surface of the sliding block (5) far away from the guide rail (4) is provided with a concave groove, the concave groove is connected with the fixed block (9) in a clamping manner, and the fixed block (9) is of an L-shaped structure.
3. The 3D printing equipment powder feeding structure according to claim 1, wherein the fixing structures (6) are symmetrically arranged in two groups about a vertical center line of the sliding block (5), each group of the fixing structures (6) is provided with two, the fixing structures (6) comprise a first through hole (61), a locking column (62), a first return spring (63) and a limiting hole (64), the first through hole (61) is arranged on a side wall of the sliding block (5), the locking column (62) is arranged in a cavity on the side wall of the sliding block (5), the first through hole (61) is communicated with the cavity on the side wall of the sliding block (5), one end of the locking column (62) extends into the first through hole (61), the locking column (62) is in a cross-shaped structure, the first return spring (63) is arranged on the surface of one end of the locking column (62), and the limiting holes (64) are arranged on two side walls of the fixing block (9), the head of the other end of the locking column (62) is clamped in the limiting hole (64).
4. The powder feeding structure of the 3D printing equipment according to claim 1, wherein the dismounting structure (7) is symmetrically arranged in two relative to a vertical center line of the slider (5), the dismounting structure (7) comprises a second through hole (71), a button (72), a guide post (73) and a second return spring (74), the second through hole (71) is arranged in the middle of two side walls of the slider (5), the second through hole (71) is communicated with a cavity in the side wall of the slider (5), the button (72) is movably buckled in the second through hole (71), the button (72) is in a T-shaped structure, one end of the button (72) penetrates through the second through hole (71), the other end of the button (72) is arranged in the cavity in the side wall of the slider (5) and is provided with a movable opening, the guide post (73) is connected in the movable opening of the button (72) in a sliding manner, one end of the guide post (73) positioned at the outer side of the button (72) is fixedly connected with the slider (5), and a second return spring (74) is sleeved on the outer peripheral surface of the guide post (73).
5. The 3D printing equipment powder feeding structure according to claim 3 or 4, characterized in that the linkage structures (8) are provided in two groups, two linkage structures (8) are provided in each group, the linkage structure (8) comprises two connecting seats (81), two linkage rods (82), a first shaft pin (83), two brackets (84) and a second shaft pin (85), two connecting seats (81) are provided, one connecting seat (81) is fixed at the side of the locking column (62), the other connecting seat (81) is fixed at the side of the button (72), the two connecting seats (81) correspond to each other, the linkage rod (82) is provided between the two connecting seats (81), two ends of the linkage rod (82) are respectively and rotatably connected with the two connecting seats (81) through the first shaft pin (83), one end of each bracket (84) is fixed in a cavity of the side wall of the sliding block (5), the support (84) corresponds to the linkage rod (82) one by one, the support (84) is of a concave structure, and the other end of the support (84) is rotatably connected with the middle position of the linkage rod (82) through a second shaft pin (85).
6. The powder feeding structure of the 3D printing equipment according to claim 1, wherein the connecting structure (12) is provided with a plurality of groups at equal intervals, the connecting structure (12) comprises a circular ring (121), a guide rod (122), a locking cover (123) and a movable hole (124), the circular ring (121) is fixed on the upper end face of the scraper (11), the outer circumferential surface of the circular ring (121) is provided with threads, one end of the guide rod (122) is clamped in the circular ring (121), the guide rod (122) is in an I-shaped structure, the locking cover (123) is arranged on the outer side of the circular ring (121), the inner circumferential surface of the locking cover (123) is provided with threads matched with the circular ring (121), the circular ring (121) is in threaded connection with the locking cover (123), the guide rod (122) is fastened with the locking cover (123), and the movable hole (124) is formed at the lower end of the cutter holder (10), the upper end and the lower end of the movable hole (124) are communicated, the upper end of the guide rod (122) sequentially penetrates through the opening of the locking cover (123) and the movable hole (124), and the top of the guide rod (122) is directly larger than the diameter of the movable hole (124).
7. The powder feeding structure of the 3D printing device according to claim 6, wherein the connecting structure (12) further comprises a pressing spring (125), the pressing spring (125) is sleeved on the outer peripheral surface of the guide rod (122), the pressing spring (125) is located between the locking cover (123) and the cutter holder (10), and two ends of the pressing spring (125) are respectively pressed on the upper wall surface of the locking cover (123) and the lower wall surface of the cutter holder (10).
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| CN202111630302.3A CN114734635B (en) | 2021-12-28 | 2021-12-28 | Powder feeding structure of 3D printing equipment |
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| CN202111630302.3A CN114734635B (en) | 2021-12-28 | 2021-12-28 | Powder feeding structure of 3D printing equipment |
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| CN114734635B CN114734635B (en) | 2023-08-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116871217A (en) * | 2023-09-06 | 2023-10-13 | 张家港扬子江冷轧板有限公司 | Tension roller dust collecting equipment |
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| CN116871217B (en) * | 2023-09-06 | 2023-11-21 | 张家港扬子江冷轧板有限公司 | Tension roller dust collecting equipment |
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