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公开(公告)号:US5050852A
公开(公告)日:1991-09-24
申请号:US569795
申请日:1990-08-17
CPC分类号: B65H3/24 , B65H3/063 , B65H2301/42322 , B65H2406/30
摘要: A blank feeder for feeding blanks. It has a feed table on which a plurality of blanks are stacked, a suction unit provided under the table to suck the lowermost one of the stack downward, a motor-driven first feed rolls mounted in the suction unit and adapted to feed the lowermost blank in contact therewith, and second feed rolls located downstream of the first feed rolls and adapted to be driven at a constant speed. The first feed rolls are accelerated from zero speed to the speed of the second feed rolls before the front end of the blank reaches the second rolls, then driven synchronized with the second feed rolls, and decelerated to zero speed again by the time the next cycle begins. A kicker for pushing out the blank may be provided. The kicker is moved forward so as to be synchronized with the second feed rolls before the front end of the blank reaches the second feed rolls. Once synchronized, this state is maintained until the rear end of the blank gets off from the kicker.
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公开(公告)号:US4586434A
公开(公告)日:1986-05-06
申请号:US729348
申请日:1985-05-01
CPC分类号: B41F13/34 , B41F13/0016 , B41F13/24 , B41F9/18 , B41P2213/804 , Y10S414/124
摘要: A device for replacing plate cylinders for a color rotary press is proposed which includes suspending units having a bearing adapted to support one end of the shaft of a plate cylinder and to be movable in a vertical direction, and travellers for moving the suspending units in a horizontal direction, and elevator conveyors having bearings secured to a chain to support one end of the shaft of the plate cylinder and move the latter up and down.
摘要翻译: 提出了一种用于更换彩色旋转压机的印版滚筒的装置,其包括具有适于支撑印版滚筒的轴的一端并能够在垂直方向上移动的轴承的悬挂单元,以及用于将悬挂单元移动到 水平方向和电梯输送机,其具有固定到链条的轴承,以支撑印版滚筒的轴的一端并且上下移动该滚筒。
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公开(公告)号:US4392910A
公开(公告)日:1983-07-12
申请号:US304340
申请日:1981-09-21
IPC分类号: B65H23/02 , B31F1/24 , B31F1/28 , B65H23/032 , B65H23/038 , G05D3/12 , B65H25/26
CPC分类号: B65H23/0326 , B31F1/2836 , B32B38/1833 , B32B2317/12 , B32B2317/16
摘要: An apparatus is disclosed for aligning at least two running webs with each other. It is characterized in that any lateral displacement is corrected at a position at a predetermined distance upstream of the displacement detection point or where excessive tension is not applied to the web to be corrected. Further, correction is made taking into consideration the time for the displacement detectors to follow the web movement and the time for the web to come back to a stable condition after splicing.
摘要翻译: 公开了一种用于使至少两个运行的纤维网彼此对准的装置。 其特征在于,在位移检测点上游的预定距离的位置处或任何未被施加到要校正的幅材上的过度张力的位置处校正任何横向位移。 此外,考虑到位移检测器跟随纸幅移动的时间和纸幅在拼接后恢复到稳定状态的时间的修正。
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