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公开(公告)号：US3641883A
公开(公告)日：1972-02-15
申请号：US3641883D
申请日：1970-05-06
发明人： SMITHE ELIOT S , HELM HERBERT W
CPC分类号： B43M5/04 , B31B70/261 , B31B2150/00 , B31B2160/10 , B65H29/243 , B65H29/40
摘要： Closure flap folding apparatus includes a transfer cylinder with rows of vacuum ports extending longitudinally along the periphery, a delivery cylinder having a plurality of rows of peripheral vacuum ports extending longitudinally thereon in spaced relation to each other and an intermediate seal fold cylinder also having vacuum ports extending longitudinally thereon. The transfer cylinder and delivery cylinder have the same diameter and are arranged to rotate in the same direction at substantially the same peripheral speed. The seal fold cylinder is positioned between the transfer cylinder and delivery cylinder and is arranged to engage a portion of the envelope transferred thereto by the transfer cylinder and retain engagement of the portion of the envelope while folding of the seal or closure flap takes place. The delivery cylinder engages the body portion of the envelope and transfers the envelope to a collecting device. The seal fold cylinder rotates at the same peripheral speed as the transfer cylinder in a direction opposite thereto and at an exact multiple of the angular velocity of the transfer cylinder, as for example, the seal fold cylinder completes four revolutions to a single revolution of the transfer cylinder. A timing device and valves are provided to exert a suction through the vacuum ports on the seal fold cylinder only when the vacuum ports are in overlying relation with the preselected portion of the envelope blank. The closure flaps may be folded forwardly in overlying relation with the opening in the envelope, rearwardly into overlying relation with the front surface of the envelope, or the envelope may be transferred through the folding device with the closure flap in an open unfolded position.
摘要翻译： 闭合折板折叠装置包括具有沿着周边纵向延伸的一排真空端口的传送滚筒，具有多个彼此间隔开地纵向延伸的多排周边真空端口的输送圆筒和还具有真空端口的中间密封折叠圆筒 在其上纵向延伸。 传送滚筒和传送滚筒具有相同的直径并且被布置成以基本上相同的圆周速度在相同的方向上旋转。 密封折叠圆柱体位于传送滚筒和传送滚筒之间，并且布置成接合由传送滚筒转移到其上的信封的一部分，并且在折叠密封件或封闭盖板的同时保持封套部分的接合。 输送筒与信封的主体部分接合并将信封传送到收集装置。 密封折叠滚筒以与传送滚筒相反的圆周速度以与传送滚筒相反的方向旋转，并以传送滚筒的角速度的精确倍数旋转，例如，密封折页滚筒完成四转至单圈 传输缸。 提供定时装置和阀，以仅当真空口与信封坯料的预选部分重叠时才通过密封折叠滚筒上的真空端口进行抽吸。 闭合翼片可以以与封套中的开口重叠的方式向前折叠，向后与封套的前表面重叠，或者封套可以通过折叠装置传送，封闭翼片处于打开的展开位置。
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公开(公告)号：US3599970A
公开(公告)日：1971-08-17
申请号：US3599970D
申请日：1969-05-23
发明人： SMITHE ELIOT S , HELM HERBERT M
CPC分类号： B65H3/34 , B65H3/0866 , B65H3/10 , B65H3/28 , B65H2301/42322
摘要： A feeder mechanism is provided to feed envelope blanks having rectangular or triangular bottom flap portions from the bottom of a stack while maintaining register. A sucker shaft is rotatably mounted within a hollow feed cylinder that has an elongated longitudinal opening. The sucker shaft has radially extending protuberances that extend through the cylinder opening and beyond the periphery of the feed cylinder. The protuberances extend upwardly through the cutout segments of the feeder disc to a position adjacent the front edge of the bottom blank. The protuberances, by suction, engage the entire front end portion of the bottom blank while the front edge portion of the stack is supported by a support device. By rotation of both the feed cylinder and the sucker shaft at different peripheral speeds and in opposite directions, the front edge of the bottom blank is bent downwardly into the feed cylinder. An edge of the cylinder opening engages the blank upper surface and continues to bend the front end portion of the blank downwardly. A cylindrical pressure segment urges the blank against the peripheral surface of the feed cylinder to separate the bottom blank from the stack and feed the blank to an impression cylinder. The peripheral surface of the feed cylinder adjacent the longitudinal opening has suction ports therein to engage the blank to the peripheral portion of the feed cylinder.
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