Extrusion molding machine for producing ceramic molding

An extrusion molding machine for producing a ceramic molding is provided in which a ceramic material which has not been kneaded is efficiently introduced to realize a high molding speed. The machine includes a screw extruder and a material introduction portion through which the material is introduce...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	YAMAGUCHI SATORU, KATOU HIROMI
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING PERFORMING OPERATIONS PRESSES PRESSES IN GENERAL SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURESCONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING CEMENT, CLAY, OR STONE WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	An extrusion molding machine for producing a ceramic molding is provided in which a ceramic material which has not been kneaded is efficiently introduced to realize a high molding speed. The machine includes a screw extruder and a material introduction portion through which the material is introduced into the screw extruder. The material introduction portion is provided with a casing having an introduction passage connected to a housing of the screw extruder and an opening through which the material is charged, and right and left introduction screws provided in the introduction passage. The introduction screws are provided with lead portions wound in opposite directions and arranged so that the lead portions are engaged substantially in a non-contact state. The introduction screws are rotated so that the material is moved in a direction opposite to the opening at the engagement portion.