Reducer pipe printing spray head and reducer pipe printing method

The invention provides a reducer pipe printing spray head and a reducer pipe printing method. The reducer pipe printing spray head comprises an outer-layer needle head, a middle-layer needle head anda central needle head, wherein the middle-layer needle head is at least partially inserted into the o...

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Bibliographische Detailangaben
Hauptverfasser:	RAO LILI, LONG XIAOYAN, LIU LIBIAO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ADDITIVE MANUFACTURING TECHNOLOGY ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY BEER BIOCHEMISTRY CHEMISTRY ENZYMOLOGY METALLURGY MICROBIOLOGY MUTATION OR GENETIC ENGINEERING PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS SPIRITS TRANSPORTING VINEGAR WINE WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	The invention provides a reducer pipe printing spray head and a reducer pipe printing method. The reducer pipe printing spray head comprises an outer-layer needle head, a middle-layer needle head anda central needle head, wherein the middle-layer needle head is at least partially inserted into the outer-layer needle head, the middle-layer needle head is provided with an elastic part, the elasticpart is located at an outlet end of the middle-layer needle head, the elastic part is located in the outer-layer needle head, and the inner wall face of the elastic part forms a gradually-expanding cone; and the central needle head is at least partially inserted into the middle-layer needle head, the central needle head is provided with a boss part, the boss part protrudes towards the radial outerside of the central needle head, the central needle head and the middle-layer needle head can be arranged in a relative moving mode, and the boss part extrudes the inner wall face of the elastic part, so that the elastic part