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    • 3. 发明授权
    • Overlapping document strip conveying method and apparatus
    • 重叠文件条传送方法和装置
    • US4542893A
    • 1985-09-24
    • US671357
    • 1984-11-14
    • Marvin B. Clause, Jr.Callie R. Thompson
    • Marvin B. Clause, Jr.Callie R. Thompson
    • B65H23/06B65H23/18B65H35/00B65H45/00B65H23/00
    • B65H23/066B65H23/18B65H35/00
    • An apparatus and method whereby two superposed strips (26, 28) of documents are conveyed in a direction of conveyance (30) toward a downstream workstation. The strips (26, 28) are conveyed over one another in a direction of superposition whereby the leading edges of documents of one strip alternate in sequence in the direction of conveyance with the leading edges of documents in the other strip. A determination and control (190) circuit determines whether the leading edges of documents in one strip are tending to creep up on the leading edges of documents in the other strip due to differing speeds of motion of the two strips. If a creeping condition is determined, the circuit (190) energizes brake (400) whereby the motion of at least one of the strips is at least temporarily retarded. The circuit (190) comprises a detector (188) for determining when leading ones of documents have been separated from their respective strips; timing pulse generator (200); counter selector (206) for selectively enabling a first counter (202) and a second counter (204) to count timing pulses (the counters (202, 204) being enabled in alternating fashion after documents are separated in alternating strip fashion from their strips); and, comparator (207) for comparing the counts in the two counters. The detector (188) detects leading edges and trailing edges of separated documents conveyed past it. The counters are enabled to count when the trailing edge of a preceding separated document is detected and are disabled when the leading edge of a just-separated document is detected. The control circuit (190) periodically deenergizes the brake for a time period extending from the time at which the leading edge of a just-separated document is detected until the time at which the trailing edge of the just-separated document is detected.
    • 一种装置和方法,其中文件的两个重叠条带(26,28)沿着输送方向(30)被输送到下游工作站。 条(26,28)在叠合方向上彼此传送,从而一条条的文件的前缘在传送方向上依次沿着另一条带中的文件的前缘交替排列。 确定和控制(190)电路确定由于两个条带的不同的运动速度,一个条带中的文档的前沿是否倾向于在另一条带中的文档的前缘上爬行。 如果确定了爬行状态,则电路(190)激励制动器(400),由此至少一个条带的运动至少暂时延迟。 电路(190)包括检测器(188),用于确定文件中的哪些文件已经与其各自的条带分离; 定时脉冲发生器(200); 计数器选择器(206),用于选择性地使第一计数器(202)和第二计数器(204)计数定时脉冲(计数器(202,204)以交替方式与交替条带分离的文档以交替方式启用) ; 以及用于比较两个计数器中的计数的比较器(207)。 检测器(188)检测传送过去的分离的文件的前缘和后缘。 当检测到先前分离的文档的后沿时,计数器被允许计数,并且当检测到刚刚分离的文档的前沿时被禁用。 控制电路(190)在从刚被分离的文档的前沿被检测到直到检测到刚刚分离的文档的后沿的时间的时间段周期性地使制动器断电一段时间。
    • 8. 发明授权
    • Method of tensioning a web of packaging material
    • 张紧包装材料网的方法
    • US4691499A
    • 1987-09-08
    • US666676
    • 1984-10-31
    • Yoshiaki UmedaRyouhei MatsumotoHiroyasu IsomuraHisakuni Shimotaka
    • Yoshiaki UmedaRyouhei MatsumotoHiroyasu IsomuraHisakuni Shimotaka
    • B65B9/20B65B41/16B65H23/00B65H23/06B65B9/06B65B41/12
    • B65B9/2028B65B41/16B65B9/213B65H23/005B65H23/066B65H2801/69
    • Disclosed herein is a method of tensioning a web packaging material in a form-fill-seal packaging apparatus wherein the web is pulled from a supply roll through web feeding rolls, guided over means for forming it into tubing and fed toward means for feeding the tubing forward, and wherein articles to be packaged are provided in the tubing and sealing operations are performed on the tubing to seal it to form packages. The invention method is characterized in that the web feeding rolls and the tubing feeding means are concurrently started, and when the web feeding rolls and the tubing feeding means are stopped to form a seal on the tubing, the tubing feeding means is stopped slightly later than the web feeding rolls so that the web forward by the web feeding rolls is taken up and pulled toward the tubing feeding means under tension. Another method is disclosed for tensioning a web between the supply roll and the web feeding rolls, wherein a suitable braking is applied to the rotating supply roll so that the web fed forward by the feeding rolls is taken up under tension.
    • 本文公开了一种在成型 - 填充 - 密封包装设备中张紧卷筒纸包装材料的方法,其中将纸幅从供给辊通过纸幅供给辊拉出,将纸张包装材料引导到用于将其形成管道的装置上,并被送入用于供给管 并且其中待包装的物品设置在管道中,并且在管道上执行密封操作以将其密封以形成包装。 本发明的方法的特征在于,同时启动幅材进给辊和管道进给装置,并且当幅材进给辊和管道进给装置被停止以在管道上形成密封时,管道进给装置比稍晚于 卷筒纸进给辊,使得通过卷筒纸进给辊向前的纸幅在张力下被卷取并拉向管道进给装置。 公开了另一种方法,用于在供料辊和卷筒纸进给辊之间张紧卷筒纸,其中适当的制动被施加到旋转的供给辊,使得由进给辊向前馈送的卷筒在张力下被卷取。