Quick forming screw extruding jet device for thermoplastic particle material

A technology of screw extrusion and granule body, applied in the field of rapid prototyping extrusion nozzle device, which can solve the problems of nozzle lag and drooling phenomenon that cannot be overcome, increase the weight of the nozzle and the complexity of coupling control, and the inability to reduce the cost of prototyping. , to achieve the effect of clear local details, good start and stop effect of silk production, and compact structure
CN100488751CInactive Publication Date: 2009-05-20SHANGHAI JIAOTONG UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGHAI JIAOTONG UNIV
Publication Date
2009-05-20
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The quick forming and screw extruding jet device for thermoplastic particle material belongs to the field of fast forming and smelting extrusion stacking technology in mechanical processing. The device includes push rod feeding mechanism, reducing worm gear transmission mechanism, micro extruding screw jet mechanism and temperature controlling heating mechanism. The push rod feeding mechanism consists of electromagnet, push rod and switching joint, and realizes the intermittent feeding of particle material via the reciprocation of the push rod notch between the material bin and material barrel. The present invention is a ideal smelting, extruding, stacking and forming jet device with effectively lowered cost, raised processing speed and less flow casting.
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Description

technical field

[0001] The invention relates to a rapid prototyping extrusion nozzle device, in particular to a rapid prototyping screw extruder nozzle device for thermoplastic granular materials, which belongs to the rapid prototyping melting extrusion stacking technology in the field of mechanical processing. Background technique

[0002] Rapid prototyping technology is a new advanced manufacturing technology developed in the late 1980s, and it has many ways of process realization. In the rapid prototyping system based on melt extrusion accumulation forming, the nozzle is the key component to achieve accumulation forming. It cooperates with the motion system to realize the orderly transfer of materials driven by CAD information, and then builds up and bonds layers to form three-dimensional solid parts. . Therefore, the nozzle is the premise and core of melt extrusion accumulation forming.

[0003] Among the current commercial rapid prototyping devices, the rapid prototyp...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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