Telescopic double-nozzle FDM-3D printer nozzle assembly controlled by electromagnetic

An FDM-3D, nozzle assembly technology, applied in the field of additive manufacturing, can solve the problems of complex internal structure, nozzle influence, increase in the weight of the print head, etc., to reduce control difficulty, reduce weight, and improve printing accuracy and surface accuracy.

An FDM-3D, nozzle assembly technology, applied in the field of additive manufacturing, can solve the problems of complex internal structure, nozzle influence, increase in the weight of the print head, etc., to reduce control difficulty, reduce weight, and improve printing accuracy and surface accuracy.

CN108790145AActive Publication Date: 2018-11-13XI AN JIAOTONG UNIV
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  • Telescopic double-nozzle FDM-3D printer nozzle assembly controlled by electromagnetic

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Embodiment Construction

[0031] The present invention is described in further detail below in conjunction with accompanying drawing:

[0032] Such as figure 1 As shown, the spray head assembly of the present invention includes a fixed frame 6 , a motor 11 and a driving wheel 10 .

[0033] The first driven wheel 9 and the second driven wheel 15 are respectively symmetrically arranged on both sides of the driving wheel 10, and the end faces of the three are in the same plane. Connected so that the driving wheel 10 and the motor 11 can swing towards both sides.

[0034] Both sides of the bottom of the motor 11 are respectively symmetrically fixed with a second iron sheet 8 and a third iron sheet 16, and the outer sides of the second iron sheet 8 and the third iron sheet 16 are respectively symmetrically provided with a second electromagnet 7 and a second electromagnet fixed on the fixed frame 6. Three electromagnets 17.

[0035] The fixing frame 6 is respectively provided with a first material guide t...

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Abstract

The invention provides a telescopic double-nozzle FDM-3D printer nozzle assembly controlled by electromagnetic. The assembly comprises a fixing frame, a motor and a driving wheel; when a first nozzleworks, the motor rotates, a second electromagnet is electrified, and a third iron sheet is attracted to tight compress the driving wheel and a second driven wheel to convey a first wire rod; and whena second nozzle works, the motor is rotated reversely, a third electromagnet is electrified, and the third iron sheet is attracted to tight compress the driving wheel and the second driven wheel to convey a second wire rod. The motor is driven to swing towards the two sides, the driving wheel is driven to cooperate with the two driven wheels on the two sides correspondingly, so that the two wire rods can be extruded out, and the two nozzles can be fed; and on the premise that the basic function of a nozzle assembly is guaranteed, the weight of one motor and the weight of one friction wheel arereduced greatly, so that the control difficulty is reduced, and the printing precision and the surface precision are improved.

Description

technical field [0001] The invention belongs to the field of additive manufacturing, and relates to an electromagnetically controlled scalable dual-nozzle FDM-3D printer nozzle assembly. Background technique [0002] The Fused Deposition Rapid Prototyping (FDM) process is by extruding a filamentous material such as a thermoplastic, wax or metal fuse from a heated nozzle, and performing melt deposition at a fixed rate according to a predetermined trajectory for each layer of the part, Every time a layer is completed, the workbench is lowered by one layer thickness to superimpose and deposit a new layer, so that the deposition and molding of the parts are finally realized through repetition. The biggest difference between the FDM system and other 3D printing systems is that FDM does not use a laser system, which reduces the maintenance cost to the lowest level. In addition, it has simple equipment, clean process, low operating cost and no garbage, and can quickly build hollow ...

Claims

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Application Information

Patent Timeline
13 Nov 2018
Publication
CN108790145A
IPC
B29C64/112; B29C64/118; B29C64/209; B29C64/30; B33Y30/00
CPC
B29C64/112; B29C64/118; B29C64/209; B29C64/30; B33Y30/00
Inventors
梁庆宣; 周文卿