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CN-121989441-A - Feeding mechanism of 3D printer

CN121989441ACN 121989441 ACN121989441 ACN 121989441ACN-121989441-A

Abstract

The invention relates to the technical field of 3D printing, in particular to a feeding mechanism of a 3D printer, which comprises a printer main body, wherein a printing head assembly is arranged at the top of the printer main body, the printing head assembly comprises a movable seat connected with the printer main body, a heat dissipation net is arranged at the bottom of the movable seat, a heating seat is arranged at the bottom of the heat dissipation net, a spray head is arranged at the bottom of the heating seat, raw material wires are inserted into the heating seat, connecting columns are inserted into four corners of the movable seat, the same mounting seat is arranged at the top of the connecting columns, and a housing is arranged at the top of the mounting seat. According to the invention, the cleaning assembly is matched with the combined transmission assembly, when the first bevel gear is matched with the second bevel gear, synchronous transmission is carried out on the transmission rod when the second rotating rod rotates, and when the transmission rod rotates under stress, the sleeve is driven to synchronously rotate through the matching of the third synchronous wheel and the second synchronous belt, so that the brush hair is driven to continuously rotate, the continuous cleaning effect is realized, and the quality of a finished product is greatly improved.

Inventors

  • GUAN LEI
  • XU LINCHAO
  • CAI CHENGYU
  • ZHENG YUJIE
  • WANG XIAO

Assignees

  • 浙江工贸职业技术学院

Dates

Publication Date
20260508
Application Date
20230913

Claims (10)

  1. 1. The utility model provides a feed mechanism of 3D printer, includes printer main part (1), its characterized in that, printer main part (1) top is equipped with print head subassembly (2), print head subassembly (2) including remove seat (3) that are connected with printer main part (1), remove seat (3) bottom and be equipped with heat dissipation net (5), heat dissipation net (5) bottom is equipped with heating seat (6), heating seat (6) bottom is equipped with shower nozzle (7), raw materials silk (14) have been inserted to heating seat (6) inside, remove seat (3) four corners all to insert and be equipped with spliced pole (4), spliced pole (4) top is equipped with same mount pad (12), mount pad (12) top is equipped with housing (13), raw materials silk (14) top slip runs through in heat dissipation net (5), remove seat (3), mount pad (12) and housing (13) top, housing (13) inside is equipped with the drive assembly who is used for controlling raw materials silk (14) motion, housing (13) outside one side is equipped with and is used for eliminating raw materials silk (14) and links raw materials silk (14) top that is equipped with clean raw materials subassembly (14).
  2. 2. The feeding mechanism of a 3D printer according to claim 1, wherein the driving assembly comprises guide wheels (15) symmetrically arranged inside the housing (13), the guide wheels (15) are all abutted against the outer peripheral surface of the raw material wire (14), the guide wheels (15) are all coaxially inserted with first rotating rods (16), the first rotating rods (16) are all rotatably inserted through the outer wall of the housing (13), a second rotating rod (23) is transversely inserted on one side of the housing (13), the second rotating rod (23) is positioned on the outer peripheral surface of one end inside the housing (13) and sleeved with a tensioning wheel (22), a driving motor (20) is arranged on one side of the outer peripheral surface of the housing (13), a second synchronizing wheel (19) is coaxially arranged at the end of an output shaft of the driving motor (20), one end, close to the tensioning wheel (22), of the first rotating rod (16) is sleeved with a first synchronizing wheel (17), the second synchronizing wheel (19) and the first synchronizing wheel (22) are sleeved with the same first synchronizing belt (18), and two first synchronizing wheels (17) are respectively abutted against the inner and outer peripheral surfaces of the first synchronizing belt (18).
  3. 3. The feeding mechanism of the 3D printer according to claim 2, wherein the linkage static eliminating assembly comprises discharge cones (35) which are all arranged at one end of the first rotating rod (16) extending to the outer part of the housing (13), an insulating seat (36) is arranged at the top of the mounting seat (12), the discharge cones (35) are symmetrically arranged at the top of the insulating seat (36), and the discharge cones (35) are symmetrically arranged at the tip ends.
  4. 4. A feeding mechanism of a 3D printer according to claim 3, wherein the cleaning assembly comprises a bearing seat (31) arranged at the top of the housing (13), a sleeve (30) is coaxially inserted into the bearing seat (31), a cleaning collar (32) is arranged at the top of the sleeve (30), a plurality of bristles (33) are distributed on the inner circumferential surface of the cleaning collar (32), the end parts of the bristles (33) are all in sliding contact with the outer circumferential surface of the raw material wire (14), and a combined transmission assembly for controlling the rotation of the cleaning collar (32) is arranged on the outer circumferential surface of the sleeve (30).
  5. 5. The feeding mechanism of a 3D printer according to claim 4, wherein the joint transmission assembly comprises a first bevel gear (24) sleeved at the end part of a second rotating rod (23), a second bevel gear (25) is meshed at the top of the first bevel gear (24), a transmission rod (26) is coaxially arranged at the top of the second bevel gear (25), a supporting seat (27) is rotatably sleeved on the outer peripheral surface of the transmission rod (26), the supporting seat (27) is fixed on the outer peripheral surface of an outer wall sleeve (30) of the housing (13) and a third synchronous wheel (28) is sleeved on the outer peripheral surface of the top of the transmission rod (26), and the same second synchronous belt (29) is sleeved on the third synchronous wheel (28).
  6. 6. The feeding mechanism of a 3D printer according to claim 5, wherein the discharge cones (35) at the tops of the insulating bases (36) are all connected with wires (37), and one ends of the wires (37) far away from the discharge cones (35) are all grounded.
  7. 7. The feeding mechanism of a 3D printer according to claim 6, wherein the cleaning collar (32) is provided with a suction assembly (34) on the top side.
  8. 8. Feeding mechanism of a 3D printer according to claim 7, characterized in that the heat dissipation net (5) is provided with a first heat dissipation fan (9) on one side.
  9. 9. The feeding mechanism of a 3D printer according to claim 8, wherein a connecting seat (10) is arranged at the bottom of the heat dissipation net (5), and second heat dissipation fans (11) are arranged at two sides of the connecting seat (10).
  10. 10. Feeding mechanism of a 3D printer according to claim 9, characterized in that a thermostatic heating rod (8) is inserted inside the heating seat (6).

Description

Feeding mechanism of 3D printer Technical Field The invention relates to the technical field of 3D printing, in particular to a feeding mechanism of a 3D printer. Background 3D printing is a technology for constructing objects by using an adhesive material such as plastic based on digital model files in a layer-by-layer printing manner, and is often used for manufacturing models in the fields of mold manufacturing, industrial design and the like, and then gradually used for directly manufacturing some products, and parts printed by using the technology already exist. The search CN109049708a discloses a feeding mechanism of a 3D printer, which can realize stable, complete and high-precision output of raw materials. In another scheme, as disclosed in CN108656552A, a belt-driven double-gear feeding mechanism of an FDM type 3D printer adopts two feeding gears which rotate synchronously to feed, so that the slipping phenomenon is avoided, the pressing pressure can be continuously adjusted, the applicability is good, and the influence of heating of a stepping motor on 3D printing wires is reduced. But the present inventors have found that the prior art solution still has at least the following drawbacks: Firstly, the printing raw materials used at present are usually nylon or resin, so that static electricity is easily generated when raw materials are conveyed in the printing process, and therefore, the melted raw materials are easily influenced by the static electricity in the printing process to cause stacking dislocation, and secondly, the raw materials are usually conveyed in a naked environment, so that impurities such as dust in the environment easily enter the nozzle along with the raw materials, and the inside of the nozzle is polluted, and meanwhile, the quality of a printed finished product is influenced. Disclosure of Invention Accordingly, the present invention is directed to a feeding mechanism of a 3D printer, which solves the problems that the raw materials contain impurities and static electricity is generated during the conveying process of the raw materials. Based on the above object, the invention provides a feeding mechanism of a 3D printer. The utility model provides a feed mechanism of 3D printer, includes the printer main part, printer main part top is equipped with the printer head subassembly, the printer head subassembly is including the removal seat that is connected with the printer main part, it is equipped with the heat dissipation net to remove the seat bottom, the heat dissipation net bottom is equipped with the heating seat, the heating seat bottom is equipped with the shower nozzle, the inside raw materials silk that inserts of heating seat, it all inserts in seat four corners and is equipped with the spliced pole, the spliced pole top is equipped with same mount pad, the mount pad top is equipped with the housing, raw materials silk top slip runs through in heat dissipation net, removal seat, mount pad and housing top, the inside drive assembly that is used for controlling raw materials silk motion that is equipped with of housing, the outside one side of housing is equipped with the linkage that is used for eliminating raw materials silk static removes the static subassembly, the housing top is equipped with the clean subassembly that is used for getting rid of raw materials silk external impurity. Further, the drive assembly is including the guide pulley of symmetry locating the inside of housing, the guide pulley all offsets with raw materials silk outer peripheral face, the first dwang of all coaxial inserting of guide pulley, first dwang all rotates and runs through in the housing outer wall, housing one side transversely rotates and inserts and be equipped with the second bull stick, the second bull stick is located the inside one end outer peripheral face cover of housing and is equipped with the take-up pulley, housing outer wall one side is equipped with driving motor, driving motor output shaft tip coaxial is equipped with the second synchronizing wheel, first dwang is close to the equal cover of take-up pulley one end and is equipped with first synchronizing wheel, second synchronizing wheel and take-up pulley cover are equipped with same first hold-in range, two first synchronizing wheel outer peripheral face offsets respectively with the inside and outside both sides of first synchronizing band respectively. According to the technical scheme, the driving motor is used for driving the second synchronous wheel to rotate, the second rotating rod is matched with the tensioning wheel to drive the first synchronous wheel, and the first synchronous wheel drives the first rotating rod to synchronously rotate, so that the peripheral surface of the raw material wire obtains friction force, and the raw material is rapidly conveyed. Further, the linkage destatics the subassembly including all locating the first dwang and extend to the discharge cone of the outside one end of ho