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公开(公告)号：US4021710A
公开(公告)日：1977-05-03
申请号：US562427
申请日：1975-03-27
申请人： Frank Fichte , Wolfgang Paul
发明人： Frank Fichte , Wolfgang Paul
CPC分类号： B65H1/18
摘要： The stack of sheets is moved towards the distributor at a control velocity corresponding to the distributor operation. If the stack in the operative vicinity of the distributor becomes too low, indicating too slow a stack advance, a mechanical sensor sensing the position of the top of the stack rotates to a position interrupting the signal furnished by the first and second inductive input signal generator. The interruption of the signal results in the furnishing of a second sensor output signal which, at a time determined by a synchronizing signal sets a monostable multivibrator whose output then energizes a relay which in turn applies voltage to a winding of a servomotor moving the arm of a potentiometer in a direction for increasing the speed of advance of the stack. Similarly, when the stack is too high, neither of the signals from the inductive generators is interrupted and a third sensor output signal generated in response to the presence of the two signals similarly causes the servomotor to drive the potentiometer in the opposite direction thereby retarding the speed of transport of the support means carrying the stack. Since the feeder system has first and second support means so that sheets are continuously available to the distributor means, the system also comprises a number of control switches and an additional sensor for connecting the different support means to corresponding motors and for switching the first support means from an induction motor effecting a rapid transport to a DC motor effecting the controlled transport when the stack is within a predetermined distance of the distributor means.
摘要翻译： 以与分配器操作相对应的控制速度向分配器移动纸堆。 如果分配器操作附近的堆栈变得太低，则指示堆叠进给速度太慢，则感测堆叠顶部位置的机械传感器旋转到中断由第一和第二感应输入信号发生器提供的信号的位置 。 信号的中断导致提供第二传感器输出信号，该第二传感器输出信号在由同步信号确定的时间设置单稳态多谐振荡器，该单谐振多谐振荡器的输出然后对继电器通电，继电器继电器将电压施加到伺服电机的绕组， 一个电位计在一个方向上提高堆栈的速度。 类似地，当堆栈太高时，来自感应发电机的信号都不会中断，并且响应于两个信号的存在而产生的第三传感器输出信号类似地使得伺服电动机沿相反方向驱动电位计，从而延迟 承载栈的支撑装置的运送速度。 由于馈送系统具有第一和第二支撑装置，使得片材能够连续地可用于分配器装置，所以系统还包括多个控制开关和用于将不同的支撑装置连接到对应的电动机的附加传感器，并且用于切换第一支撑装置 来自感应电动机，当堆叠在分配器装置的预定距离内时，实现快速运送到直流电动机，从而实现受控运输。
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公开(公告)号：US4406447A
公开(公告)日：1983-09-27
申请号：US296223
申请日：1981-08-25
申请人： Frank Fichte , Wolfgang Paul
发明人： Frank Fichte , Wolfgang Paul
CPC分类号： B65H7/02 , B65H3/0825
摘要： A device for positioning a sheet separator for a stack of sheets in a sheet feeder includes a drive for the sheet separator operable for moving the latter in two opposite directions. A stop gauge for the rear edge of the sheet stack is slidably supported on an insulating block which is rotatable on the sheet separator. The lower end of the stop gauge is provided with a feeler roller to engage the upper side of the stack, and the opposite end of the stop gauge is provided with a flag cooperating with an inductive switch. The latter switch controls the direction of rotation of the driving motor for the separator. The rotary block controls another switch which stops the motor when the separator attains its desired position. A light barrier switch is arranged at the level of the desired height of the stack and determines the active or inactive condition of the positioning device.
摘要翻译： 用于将片材分离器定位在片材进给器中的用于片材分离器的装置包括用于片材分离器的驱动器，其可操作以使其在两个相反的方向上移动。 用于片材堆叠的后边缘的止动表可滑动地支撑在可在片材分离器上旋转的绝缘块上。 止动量表的下端设有一个接触辊子，用于与堆叠的上侧接合，止动量表的另一端设有一个与电感开关配合的标志。 后者开关控制分离器的驱动电动机的旋转方向。 旋转块控制另一个开关，当分离器达到其期望位置时，该开关停止马达。 光栅开关布置在堆叠所需高度的水平面上，并确定定位装置的有效或无效状态。
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公开(公告)号：US4245830A
公开(公告)日：1981-01-20
申请号：US888152
申请日：1978-03-16
申请人： Frank Fichte , Wolfgang Paul
发明人： Frank Fichte , Wolfgang Paul
CPC分类号： B65H1/04
摘要： A sheet feeding unit includes a stack elevator which raises the top of a supported stack of sheets to infeed height. A sensor senses the position of the top sheets of the stack, to ascertain whether these exhibit improper left or right offset. Depending upon the magnitude and size of the sensed offset, the stack elevator is correctively shifted, to minimize offset at the top of the stack. Although the sensor is located to only one side of the stack, not at both sides of the stack, it is capable of sensing offset in both left and right directions. When the elevator is lowered, for the laying in of a fresh stack, it is automatically brought to a centered position.
摘要翻译： 送纸单元包括堆叠升降机，其将支撑的纸叠叠的顶部升高到进给高度。 传感器感测堆叠的顶片的位置，以确定它们是否呈现不正确的左偏移或右偏移。 根据感测到的偏移量的大小和尺寸，堆叠升降机被校正地移动，以最小化堆叠顶部的偏移。 虽然传感器仅位于堆叠的一侧，但不在堆叠的两侧，它能够感测左右两个方向的偏移。 当电梯降低时，为了铺设新的堆叠，它被自动地带到中心位置。
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公开(公告)号：US4021030A
公开(公告)日：1977-05-03
申请号：US702274
申请日：1976-07-02
申请人： Frank Fichte , Wolfgang Paul
发明人： Frank Fichte , Wolfgang Paul
CPC分类号： B65H5/062 , B65H2403/00
摘要： A plurality of rollers each carried on an element pivoted on a support swing back and forth into engagement with respective continuously driven rollers to pinch a sheet delivered between the rollers by means of a vacuum lifter and advance it along a path. A motor on each support can vary the position of the respective movable roller relative to the fixed roller and the pivotal element is insulated from the support but abuts conductively thereagainst in a rest position. A controller connected between the support and the element detects abutment of the two contact surfaces which function as switches and operates a control system that can vary the spacing between each pair of rollers in accordance with the thickness of the sheet being fed to it. A too thick a sheet will push the rollers apart prematurely and open the switch and a too thin sheet will not push them apart before the vacuum lifter releases it. Each time the vacuum lifter releases a sheet a release signal is generated and, shortly commencement of the release signal, a tolerance signal which are fed to a circuit that also receives a signal each time the movable roller is lifted so as automatically to vary the spacing between the rollers.
摘要翻译： 每个承载在支撑件上的多个辊子前后摆动地回转地与相应的连续驱动的辊子接合，以通过真空提升器夹紧在辊子之间输送的片材并且沿着路径推进。 每个支撑件上的电动机可以改变相应可移动辊相对于固定辊的位置，并且枢转元件与支撑件绝缘，但是在静止位置上以传导方式邻接。 连接在支撑件和元件之间的控制器检测作为开关的两个接触表面的邻接，并且操作控制系统，该控制系统可以根据供给到其的片材的厚度来改变每对辊之间的间隔。 太厚的纸张将过早推动辊子并打开开关，太薄的纸张在真空升降器释放之前不会将它们分开。 每次真空提升器释放片材时，产生释放信号，并且在释放信号的短时间内启动公差信号，该公差信号被馈送到电路，每当可动辊被提升时也接收信号，以便自动地改变间隔 辊之间。
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