Apparatus for the registration of printed matter during the manufacture
of bags
    2.
    发明授权
    Apparatus for the registration of printed matter during the manufacture of bags 失效
    在制造袋子期间登记印刷品的装置

    公开(公告)号:US5795280A

    公开(公告)日:1998-08-18

    申请号:US618927

    申请日:1996-03-20

    摘要: An apparatus for facilitating the registration of printed matter during the manufacture of bags on fixed-size bag formation equipment, from a continuous web of a substantially non-stretchable material. Printed matter, printed upon the continuous web at regularly-spaced intervals, includes a plurality of periodically spaced reference markers. While a finishing drum propels the continuous web in a direction of flow emanating from a supply of web material, at a substantially constant speed, feed rollers, positioned upstream from the finishing drum, propel the continuous web at a variable speed, relative to the substantially constant speed. As a cutting roller severs a substantially fixed length of web material from a leading edge of the web, at a substantially fixed position relative to an associated reference marker, downstream from the feed rollers, a programmable controller senses the passage of the reference marker past a predetermined position, and further senses the rotational positioning of the cutting roller, comparing these inputs to determine whether the web is being severed at a proper location. Subject to this sensing, a differential transmission adjusts the speed of the feed rollers, to, in turn, vary the position along the continuous web where the cutting roller severs the web in relation to the associated markers.

    摘要翻译: 一种用于在由固定尺寸的袋形成设备制造袋子的过程中便于从基本上不可拉伸的材料的连续幅材上注册印刷品的设备。 以规则间隔的间隔印刷在连续幅材上的印刷品包括多个周期性间隔的参考标记。 当整理滚筒以从基本上恒定的速度从卷材材料供应源流出的流动方向推动连续卷材时,定位在精整滚筒上游的进料辊相对于基本上相当于一个可变速度推动连续幅材 恒速。 作为切割辊,从幅材的前缘切割基本上固定长度的幅材材料,在相对于相关联的参考标记的基本上固定的位置处,从进给辊下游,可编程控制器感测参考标记经过过的通道 并且进一步感测切割辊的旋转定位,比较这些输入以确定幅材是否在适当位置被切断。 根据该感测,差速变速器调节进给辊的速度,从而改变连续卷材上的位置,其中切割辊相对于相关联的标记物切割卷筒纸。

    Intermittent web feed apparatus
    4.
    发明授权
    Intermittent web feed apparatus 失效
    间歇式送纸装置

    公开(公告)号:US5041070A

    公开(公告)日:1991-08-20

    申请号:US610313

    申请日:1990-11-06

    申请人: Giles R. Blaser

    发明人: Giles R. Blaser

    IPC分类号: B26D5/32 B26D5/34 B31B19/10

    摘要: A bag machine includes a programmed logic controller intermittently actuating a web feed draw roll motor for controlled web feed during the inoperative period of a cycled seal bar. The controller has separate inputs for the seal bar periods and a web length and establishes a control program of a preferred motion profile, with acceleration and deceleration of the fixed rolls to match the bag length to the available time using the total time available, with acceleration to a maximum and deceleration to reference, with or without a constant speed period. The bag length and time is monitored each machine cycle to calculate the next motion profile and permit changes in the bag length without machine shut-down. A programmed registered mode of control responds to a web mark spacing relative to the seal bar. In the registered mode, a photoscanner detects the mark during a constant speed web feed period prior to the end of the available time and actuates the web feed accordingly. If actual draw roll motion differs from the programmed motion profile, a fault signal may shut-down the machine. Manual control and inputs are provided for setup and for manual machine operations. The controller may vary the length of every other bag slightly to spaced hot seams from each other and permits stacking of the bags. A programmed reverse drive withdraws the web slightly from the seal bar to prevent sticking of the web to the seal bar.

    摘要翻译: 袋装机包括编程的逻辑控制器,间歇地致动卷筒纸进给拉伸辊马达,以在循环密封条的非操作期间控制卷筒纸进给。 控制器具有用于密封条周期和纸幅长度的单独输入,并建立一个优选运动曲线的控制程序,使用固定辊的加速和减速,使用总可用时间将袋长度与可用时间相匹配,加速度 以最大和最大减速度进行参考,有或没有恒定的速度周期。 每个机器周期监测袋子的长度和时间,以计算下一个运动曲线,并允许袋子长度的改变而不关闭机器。 编程注册的控制模式响应于相对于密封条的纸标记间距。 在注册模式下,照相机在可用时间结束之前的恒速卷筒纸馈送期间检测标记,并相应地启动纸张进纸。 如果实际的拉伸滚动运动与编程的运动曲线不同,故障信号可能会关闭机器。 提供手动控制和输入用于设置和手动机器操作。 控制器可以将每隔一个袋子的长度稍许变化以使彼此间隔开的热接缝变化,并允许袋子的堆叠。 一个编程的反向驱动器从密封条上稍稍退出纸幅,以防止纸幅粘到密封条上。

    Bi-directional registration of servo indexed webs
    5.
    发明授权
    Bi-directional registration of servo indexed webs 失效
    伺服分度腹板的双向配准

    公开(公告)号:US5000725A

    公开(公告)日:1991-03-19

    申请号:US267866

    申请日:1988-11-07

    IPC分类号: B31B1/10 B26D5/00 B31B19/10

    摘要: A bag machine fabricates plastic bags by transversely cutting and sealing, at regularly spaced preselected locations, an elongate plastic web having graphic material repetitively printed thereon. In operation, the bag machine advances the web by a calculated draw length, and an optical sensor, sensitive to the passage of eyemarks printed in regularly spaced locations on the web, functions to ensure that the web is cut and sealed only at the desired locations. To avoid inaccuracies resulting from a gradual variance between the nominal draw length and the actual distance between eyemarks, a control system monitors the actual distance between eyemarks and sets the nominal draw length to the average actual spacing between eyemarks as measured over a preselectd number of successive eyemarks.

    摘要翻译: 袋式机器通过在规则间隔的预选位置横向切割和密封来制造塑料袋,其具有重复印刷在其上的图形材料的细长塑料网。 在操作中,袋子机器将纸幅前进到计算的拉伸长度,并且对于打印在幅材上的规则间隔位置的眼睛的通过敏感的光学传感器起到确保仅在所需位置处切割和密封幅材 。 为了避免由标称牵伸长度与眼睛之间的实际距离之间逐渐变化而产生的不准确性,控制系统监控眼睛之间的实际距离,并将标称牵伸长度设定为眼睛之间的平均实际间距,以预先选定的连续数量 眼睛商标

    Rotary bag sealing and perforating machine
    6.
    发明授权
    Rotary bag sealing and perforating machine 失效
    旋转袋密封和穿孔机

    公开(公告)号:US4333790A

    公开(公告)日:1982-06-08

    申请号:US174164

    申请日:1980-07-31

    摘要: A web of flattened, tubular, heat-sealable bag material travels above and at the speed of a moving belt. Above the belt is a seal shaft which rotates a heated seal bar. The working edge of the seal bar may be adjusted inward and outward relative to its shaft. The edge causes a transverse seal to be made on the web at intervals. A rotary perforating knife is driven at the same speed as the seal shaft and, at a subsequent station, perforates the web proximate the seal. The linear speed of the edge of the seal bar is at the speed of the belt at the time of sealing contact (about 65.degree.). The speed of the seal shaft for the remaining 295.degree. is adjustable and thereby the distance between seals and perforations is adjustable.

    摘要翻译: 扁平的,管状的,可热封的袋材料的腹板在移动带的上方和速度上行进。 皮带上方是密封轴,其旋转加热的密封条。 密封条的工作边缘可以相对于其轴向内和向外调节。 该边缘使得在网上间隔地形成横向密封。 旋转穿孔刀以与密封轴相同的速度被驱动,并且在随后的站处,在靠近密封件处穿过腹板。 密封条边缘的线速度为密封接触时(65°)时带的速度。 剩余295°的密封轴的速度是可调的,因此密封件和穿孔之间的距离是可调节的。

    Method of making bottom seal thermoplastic bags
    7.
    发明授权
    Method of making bottom seal thermoplastic bags 失效
    制造底部密封热塑性袋的方法

    公开(公告)号:US4101363A

    公开(公告)日:1978-07-18

    申请号:US344700

    申请日:1973-03-26

    申请人: Ronald L. Lotto

    发明人: Ronald L. Lotto

    摘要: According to the present disclosure a method is provided wherein tubular thermoplastic material is intermittently fed between opposed transversely extending seal bars operating in timed relation with the intermittent feeding of the web to sequentially perform cutting and sealing of the web during its period of repose. To insure a clean straight transverse cut, which occurs momentarily before transverse sealing, the web is held under tension between longitudinally spaced draw and feed rolls. Immediately after the web is transversely severed, the seal bars are brought into pressure engagement transversely sealing the web along a margin which will define the bottom of the bag. While the sealed portion of the web is at the sealing station, cooling air is discharged along the sealed portion of the web to effect cooling. Before the web is fed an additional increment, it is momentarily fed rearwardly to avoid the possibility of adherence to the seal bars.

    摘要翻译: 根据本公开,提供了一种方法,其中管状热塑性材料被间歇地供给在相对的横向延伸的密封条之间,所述相对的横向延伸的密封条以与所述幅材的间歇进给相关的方式操作,以在其布置期间顺序地执行所述幅材的切割和密封。 为了确保在横向密封之前立即发生的干净的直横切割,将幅材保持在纵向间隔的牵伸辊和进料辊之间的张力下。 在腹板被横向切断之后,密封条紧紧地沿着将限定袋底部的边缘横向地密封纤维网。 当腹板的密封部分位于密封站时,冷却空气沿腹板的密封部分排出以进行冷却。 在纸幅进给一个额外的增量之前,它被瞬间向后进给,以避免粘附到密封条的可能性。

    Apparatus for driving moving webs in bag making machines
    8.
    发明授权
    Apparatus for driving moving webs in bag making machines 失效
    用于在制袋机中驱动移动网的装置

    公开(公告)号:US4003298A

    公开(公告)日:1977-01-18

    申请号:US656814

    申请日:1976-02-09

    IPC分类号: B31B19/10 B65H20/24 B31B23/02

    CPC分类号: B65H20/24 B31B2219/022

    摘要: A machine for discontinuously driving a web moving continuously through the machine, having web pulling means, a web shuttle having the web trained thereabout, shuttle drive means for reciprocating the shuttle to alternately take up and pay out the web, and an endless looped belt drivingly interconnecting the web pulling means and the web shuttle for stopping and starting a portion of the belt associated with the web pulling means and thereby the web pulling means synchronously with the take-up and pay-out movements of the web and web shuttle, in which the web shuttle comprises a pair of shuttle members, a first upstream member and a second downstream member relative to the direction of web movement, each shuttle member being independently mounted in the machine for reciprocation, connected outside the loop of the belt to the shuttle drive means, and secured against the loop of the belt by the drive means for reciprocation of the shuttle members in unison, thereby stopping and starting the portion of the belt associated with the web pulling means and simultaneously stopping and starting the web.

    摘要翻译: 一种用于不连续地驱动连续移动通过机器的纸幅的机器,具有卷筒纸牵引装置,具有在其上训练的纸幅的卷筒纸梭子,用于使梭子往复运动以交替地卷起和支付纸幅的梭式驱动装置,以及无限循环带 将卷筒纸牵引装置和卷筒纸梭连接起来,用于停止和启动与纸幅牵引装置相关联的一部分带,从而与幅材牵引装置同步地卷绕纸幅和纸幅梭的卷取和放出运动,其中 腹板穿梭机构包括一对往复运动构件,相对于腹板运动方向的第一上游构件和第二下游构件,每个往复运动构件独立地安装在机器中用于往复运动,连接在带的环之外的往复运动 并且通过驱动装置固定在带的环上,用于使梭子构件一致地往复运动,从而停止和起动 带的与卷筒纸牵引装置相关联的部分并同时停止和启动卷筒纸。

    Intermittent feeding apparatus for a web of paper or plastics material
    9.
    发明授权
    Intermittent feeding apparatus for a web of paper or plastics material 失效
    纸张或塑料材料网络的间歇送料装置

    公开(公告)号:US3650449A

    公开(公告)日:1972-03-21

    申请号:US3650449D

    申请日:1970-01-27

    发明人: MUNDUS FRIEDHELM

    摘要: Apparatus for intermittently feeding a web of material, comprising a pair of feed rollers, intermittent rotating means for the feed rollers including a reciprocatable rack coupled to the feed rollers by transmission gears and a clutch, and means for reciprocating the rack, said reciprocating means comprising a reciprocating drive for rocking a rocker arm about a pivot of fixed location by means of a first link hinged to the rocker arm, a second link hinged to the rocker arm and to the rack, and adjusting means on the rocker arm for altering the spacing between the pivot of the rocker arm and the hinge point to the rocker arm of one of the links.

    摘要翻译: 一种用于间歇地馈送材料网的装置,包括一对进给辊,用于进给辊的间歇旋转装置,包括通过传动齿轮和离合器联接到进给辊的往复运动的齿条,以及用于往复运动齿条的装置,所述往复运动装置包括 往复式驱动器,用于通过铰链到摇臂的第一连杆,铰链到摇臂和支架上的第二连杆以及摇臂上的调节装置来改变摇摆臂的位置,以便使摇臂围绕固定位置的枢轴摆动以改变间隔 在摇臂的枢轴与其中一个连杆的摇臂的铰接点之间。

    Apparatus for making plastic bags
    10.
    发明授权
    Apparatus for making plastic bags 失效
    制造塑料袋的装置

    公开(公告)号:US3607550A

    公开(公告)日:1971-09-21

    申请号:US3607550D

    申请日:1968-11-22

    申请人: DU PONT

    IPC分类号: B31B19/10 B32B31/04

    摘要: Disclosed herein is an apparatus for effecting longitudinally spaced apart transverse seals with a high degree of linear accuracy in a continuous web of plastic material having a plurality of layers. The apparatus comprises two sets of dual sealer drive rollers for advancing the web past the sealer, and a means for accurately controlling the operation of the sealer and drive rolls. This control means comprises a digital converter operatively in contact with the drive rollers, adapted to convert the angle through which the roller has rotated into a train of electrical pulses. A counter is operatively connected to the converter and is responsive to the train of pulses so that when a predetermined number of these pulses are recorded, an electrical signal is emitted that activates a brake to stop the drive rolls and concomitantly activates a sealer.