METHOD AND APPARATUS FOR PRODUCING RUBBER ROLL

• Main Authors: IIDA HIDEKAZU, TAGAWA YUKI, HOSHIZAKI TAKETOSHI, HOSHIO TAKUO
• Format: Patent
• Language: English; Japanese
• Published: 08.08.2016
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; BEARINGS; BLASTING; CINEMATOGRAPHY; ELECTROGRAPHY; ELECTROPHOTOGRAPHY; ELEMENTS OR CRANKSHAFT MECHANISMS; ENGINEERING ELEMENTS AND UNITS; FLEXIBLE SHAFTS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; HOLOGRAPHY; LIGHTING; MAGNETOGRAPHY; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; PHOTOGRAPHY; PHYSICS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; SHAFTS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; THERMAL INSULATION IN GENERAL; TRANSPORTING; WEAPONS; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

PROBLEM TO BE SOLVED: To provide a method for producing a rubber roll having an elastic layer excellent in shape precision.SOLUTION: A method for producing a rubber roll comprises; a first step of extruding a rubber material into a cylindrical shape from an extrusion part 20, in such an extrusion condition that a ratio W/V of the amount W (g) of the rubber material to be packed in a second compression zone to the amount V (g/min) of the rubber material to be extruded from the extrusion part 20 for one minute is 1.5-4.0 when a core metal 22 is not fed from a core metal feed part 24, and feeding the core metal 22 to the central part of the rubber material, which is extruded into the cylindrical shape, from the core metal feed part 24 to cover the outer peripheral surface of the core metal 22 with the rubber material; and a second step of performing vulcanization treatment on the rubber material with which the outer peripheral surface of the core metal 22 is covered.SELECTED DRAWING: Figure 1 【課題】形状精度に優れた弾性層を有するゴムロールの製造方法を提供すること。【解決手段】芯金供給部２４から芯金２２を供給しないときに押出部２０から一分間当たりに押出されるゴム材の押出量Ｖ（ｇ／ｍｉｎ）と、第２圧縮領域におけるゴム材の充填量Ｗ（ｇ）との比率Ｗ／Ｖが１．５以上４．０以下となる押出条件で、押出部２０からゴム材を円筒状に押出し、円筒状に押出されるゴム材の中心部に芯金供給部２４から芯金２２を供給し、ゴム材で芯金２２の外周面を被覆する第１工程と、芯金２２の外周面を被覆したゴム材に対して加硫処理を施す第２工程と、を有するゴムロールの製造方法である。【選択図】図１