PATENT CLAIM ANALYSIS

Application Number: 16044450
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2018-11
Patent Classification: ["700", "119000"]

Abstract:
The present invention relates to a technical field of 3D printing, and more particularly to a 3D printer spray nozzle structure and a method thereof for controlling speed and precision. According to the present invention, a feeding pipeline is embedded in an external shell, the feeding pipeline and an extruder are coaxially connected; the extruder is driven by a driving device, so as to rotate relative to the feeding pipeline. A rotation angle of the extruder relative to the feeding pipeline is controlled by rotation of a motor, for controlling a filament area actually sprayed by the extrude, in such a manner that printing speed and precision is controlled for suiting different requirements of different printing area. The present invention controls the printing speed and precision, for improving overall printing speed with precision requirements satisfied, and is applicable to 3D printer spray nozzle structure and controlling.

Claim (Index 1):
A method for controlling speed and precision of a 3-dimensional printer spray nozzle structure, wherein the 3-dimensional printer spray nozzle structure comprises: a feeding pipeline, an extruder, an external shell and a driving device, wherein the extruder is arranged under the feeding pipeline; wherein the extruder is rotatable relative to the feeding pipeline, so as to adjust a cross section area of a sprayed filament;\n wherein the feeding pipeline is embedded in the external shell, the feeding pipeline and the extruder are coaxially connected; the extruder is driven by the driving device, so as to rotate relative to the feeding pipeline; wherein the driving device comprises a driving gear, a driven gear and a motor; wherein the driving gear is mounted inside the external shell, the driven gear is mounted on the extruder; the driving gear is engaged with the driven gear; the motor drives the driving gear; the driven gear is driven by the driving gear, so as to drive the extruder to rotate; wherein the driven gear is mounted at a top end of the extruder; wherein a barycenter of an internal channel cross section shape of the feeding pipeline and a barycenter of an internal channel cross section shape of the extruder are at one axle perpendicular to both an internal channel cross section of the feeding pipeline and an internal channel cross section of the extruder; the extruder is rotatable around the axle; a method for controlling the printing speed comprises steps of: defining a printing speed V=K*S*L; wherein S is the cross section area of the filament actually sprayed by the extruder, L is a unit printing forming area, K is a printing related constant; determining a feeding speed by the cross section area S of the filament actually sprayed by the extruder and the unit printing forming area L, wherein a melting speed is also affected; the feeding speed and the melting speed together determine the printing speed; and forming a signal referring to changes of S and L for controlling the printing speed, which also adjusting the feeding speed of a feeding pipeline of a spray nozzle; wherein a method for controlling the printing precision comprises steps of: according to different precision requirements, adjusting the printing speed for controlling printing precision; wherein, when high printing precision is required, the printing speed is slow; when low printing precision is required, the printing speed is high.

Metadata:
- Claim Count in Document: 3.0
- Percentile: 95.0
- Lexical Diversity: 2.23944
- Patent Class: 700.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['14778116', '14778108', '14560120', '15260813', '14940420']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.3661088306176124
- 35 USC 102 Novelty (BERT): 0.5692142500812789
- Combined Prediction Score: 0.3864193725639791
- Mean Citation Score: 252.707528
- Max Citation Score: 442.52917
- Similarity Product: 424.46810872728287

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test