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ROTARY STENCIL PRINTING PRESS HAVING IMPRESSION ROLLER-SYNCHRONIZING SYSTEM THAT CAN CONTROL PRESSING OF PLATE CYLINDER AND METHOD FOR CONTROLLING PRESSING OF PLATE CYLINDER
ROTARY STENCIL PRINTING PRESS HAVING IMPRESSION ROLLER-SYNCHRONIZING SYSTEM THAT CAN CONTROL PRESSING OF PLATE CYLINDER AND METHOD FOR CONTROLLING PRESSING OF PLATE CYLINDER
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机译:具有可控制板缸压力的压辊同步系统的旋转钢印机及控制板缸压力的方法
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摘要
PURPOSE: To control a pressing action of an impression roller on a flexible plate cylinder using a gear train for synchronizing the rotation of the impression roller with the rotation of the flexible plate cylinder of a rotary stencil printing press and to obtain a stencil printed matter at a fixed density just after the start of printing. ;CONSTITUTION: In a rotary stencil printing press that is so constructed that an impression roller can be rotated in synchronism with the rotation of a plate cylinder through a gear train including a gear 22 disposed coaxially to a plate cylinder 10, a gear 24 that is rotatably held by an arm member 26 shaking about a center axis of the plate cylinder to engage with the gear 22, and a gear 28 that is held by an arm member 18 shaking about a shaking axis deviated in parallel from the center axis of the plate cylinder so as to rotate together with the impression roller to engage with the gear 24, a braking device for braking the gear 28 or 24 is provided. In addition, at the start of printing, a braking action of the braking device is temporarily enhanced. It is more preferable that a means for restricting the increase of a distance between the axis of the gear 24 and the axis of the gear 28 over the predetermined engaging axis-to-axis distance thereof is provided.;COPYRIGHT: (C)1996,JPO
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