公开(公告)号：US5126578A

公开(公告)日：1992-06-30

申请号：US552129

申请日：1990-07-13

申请人： Roger H. Roch ,  Patrick Monney ,  Nathan Stern

发明人： Roger H. Roch ,  Patrick Monney ,  Nathan Stern

IPC分类号： B41F33/14 ,  B65H23/02

CPC分类号： B65H23/0216

摘要： The process and the device for measuring the displacement of a web within a multi-color rotary printing press by means of a mark simultaneously printed with each color in an area free of any printing characterized by the mark passing beneath the photodetector arrangements for generating a signal. The method and the device are further characterized by the fact that the pair of photodetectors are arranged side-by-side along a crosswise line with the edges of the field for each detector arrangement being positioned above the web at the expected position for the passage of the center of the crosswise symmetrical mark and the crosswise displacement of the web is determined by the difference between the intensity variations of the signals created by each of the two photodetectors when the mark passes therethrough.

摘要翻译： 用于通过在没有任何印刷的区域中同时印刷每种颜色的标记来测量多色旋转印刷机中的幅材位移的方法和装置，其特征在于标记通过光电检测器装置下方以产生信号 。 该方法和装置的特征还在于这一事实：一对光电检测器沿着横向线并排布置，每个检测器装置的边缘都位于预定位置的预期位置上， 横向对称标记的中心和幅材的横向位移由标记通过时由两个光电检测器中的每一个产生的信号的强度变化之间的差确定。

公开(公告)号：US4150495A

公开(公告)日：1979-04-24

申请号：US902551

申请日：1978-05-03

申请人： Nathan Stern

发明人： Nathan Stern

IPC分类号： B41F23/04 ,  F26B21/06 ,  F26B25/00 ,  G01N25/54 ,  G01N27/16 ,  G05D21/00

CPC分类号： F26B25/009 ,  B41F23/0426 ,  F26B21/06 ,  G01N25/54 ,  G01N27/16

摘要： The LEL (Lower Explosive Limit) control includes a gas analyzer normally connected to receive sample gas from the evaporation enclosure of a press dryer section and which, during calibration, is sequentially connected to first analyze solvent free gas and then gas having a known solvent content. Situated with the analyzer is a detector the resistance of which changes in proportion to the temperature within the flame cell of the analyzer. The detector forms a portion of a bridge circuit, which also includes a potentiometer. The output of the bridge is amplified, compared to a selected reference voltage and a signal representing the difference therebetween is processed. The processed signal is combined with a signal representing the web speed to form a resultant signal to control a pneumatically operated damper in the enclosure exhaust conduit. Automatic calibration of the system is initiated periodically and takes place in two phases. During the first phase of calibration, the potentiometer is set in accordance with the difference between the amplifier output derived from analysis of the solvent free gas and a 0% reference voltage. During the second phase of calibration, the gain of the bridge output amplifier is set in accordance with the difference between the amplifier output derived from the analysis of the known solvent concentration gas and a full scale reference voltage. When calibration is taking place, the output of the comparison circuit is inhibited and the damper position is determined in accordance with the web speed alone. Emergency stop of the press occurs when the output of the amplifier exceeds a given level.

摘要翻译： LEL（低爆炸极限）控制器包括通常连接的气体分析仪，用于接收来自压干机部分的蒸发外壳的样品气体，并且在校准期间依次连接以首先分析无溶剂气体，然后分析具有已知溶剂含量的气体 。 与分析仪一起使用的是检测器，其电阻与分析仪的火焰单元内的温度成比例变化。 检测器形成桥接电路的一部分，其也包括电位计。 与选择的参考电压相比，桥的输出被放大，并且处理表示它们之间的差的信号。 经处理的信号与表示幅材速度的信号组合以形成合成信号，以控制外壳排气导管中的气动操作的阻尼器。 定期启动系统的自动校准，分两个阶段进行。 在第一阶段的校准过程中，电位器是根据分析无溶剂气体的放大器输出与0％参考电压之间的差值来设定的。 在校准的第二阶段期间，桥输出放大器的增益根据从已知溶剂浓度气体的分析得到的放大器输出与满量程参考电压之间的差设定。 当进行校准时，比较电路的输出被禁止，并且阻尼器位置仅根据卷筒纸速度来确定。 当放大器的输出超过给定的电平时，按下紧急停止。

公开(公告)号：US06499397B2

公开(公告)日：2002-12-31

申请号：US09782091

申请日：2001-02-12

申请人： Nathan Stern

发明人： Nathan Stern

IPC分类号： B41F1302

CPC分类号： B41F13/025 ,  B41P2233/13

摘要： Device and method for the automatic register setting of printings printed by plate cylinders in a rotary machine using inks of a plurality of colors. The printing machine particularly comprises a succession of printing units, at least one pulse generator, two pull rollers located downstream of the printing units, a combination of plate cylinders and compensating rollers to correct some register errors, scanning heads each located near and downstream to the respective printing units. Each printing unit particularly includes one of the plate cylinders as well as one of the pressing cylinders. Each pressing cylinder is controlled by a control unit.

摘要翻译： 使用多种颜色的油墨在旋转机械中由印版滚筒印刷的印刷的自动记录设定的装置和方法。 印刷机特别包括一系列印刷单元，至少一个脉冲发生器，位于印刷单元下游的两个拉辊，印版滚筒和补偿滚轮的组合，以校正一些记录误差，每个位于印刷单元附近和下游的扫描头 各印刷单位。 每个印刷单元特别地包括一个印版滚筒以及其中一个按压滚筒。 每个压缸由控制单元控制。

公开(公告)号：US4176162A

公开(公告)日：1979-11-27

申请号：US814145

申请日：1977-07-11

申请人： Nathan Stern

发明人： Nathan Stern

IPC分类号： F23D14/66 ,  B01D53/44 ,  B01D53/72 ,  B01D53/74 ,  B41F23/04 ,  F23G7/06 ,  B01D53/34

CPC分类号： B01D53/72 ,  B41F23/0403 ,  F23G7/068 ,  Y02P70/20

摘要： Solvents evaporated from ink solutions in the drying sections of a multi-station printing press are converted into harmless gases by heating in an oxidation chamber. The amount of energy required to maintain the oxidation temperature is substantially reduced by preheating the exhaust by passing same through a previously heated bed of ceramic heat exchanger elements prior to introduction into the oxidation chamber. At high solvent concentration levels, preheating to the ignition temperature may result in excess heat of combustion being generated which is detrimental to the oxidation chamber structure. In order to regulate the heat generated, a portion of the heat exchanger bed is bypassed by a regulated amount of exhaust. Alternatively, the solvent concentration level of the exhaust can be lowered by mixing same with the floor sweep exhaust (of substantially lower solvent concentration) in regulated proportions in order to control the amount of heat of combustion generated during preheating. The latter method has the advantage of providing floor sweep capability without increased cost.

摘要翻译： 在多工位印刷机的干燥部分中从油墨溶液中蒸发的溶剂通过在氧化室中加热而转化成无害气体。 在引入氧化室之前，通过使排气通过预先加热的陶瓷热交换器元件的床来预热废气，从而大大降低了维持氧化温度所需的能量。 在高溶剂浓度水平下，预热到点火温度可能导致产生过量的燃烧热，这对氧化室结构是不利的。 为了调节产生的热量，热交换器床的一部分被排出的排放量排出。 或者，可以通过以与调节比例相同的地板清扫排气（基本上较低的溶剂浓度）混合来降低排气的溶剂浓度水平，以便控制在预热期间产生的燃烧热量。 后一种方法具有提供地板扫掠能力而不增加成本的优点。

公开(公告)号：US4214943A

公开(公告)日：1980-07-29

申请号：US911360

申请日：1978-06-01

申请人： Nathan Stern

发明人： Nathan Stern

IPC分类号： B65H19/18

CPC分类号： B65H19/181 ,  B65H2301/46412

摘要： A paster roller is provided for use on high speed web handling equipment of the type having a support upon which a feed roll and a new roll are mounted. Variable torque brakes associated with each roll exhibit a substantially constant coefficient of friction at all web speeds. Apparatus for splicing the web from the feed roll onto the web from the new roll is provided including a uniquely designed paster roller having a deflectable outer surface with annular grooves situated therein. The brakes each include a brake caliper assembly for use in conjunction with the rotatable shaft upon which the roll is mounted which has a disc member associated therewith. The assembly includes a housing having a bore therein. A port provides a fluid connection between the extension of the housing and the bore. A cylindrical puck member is at least partially received within the bore. A cylindrical piston member is movable within the bore between the port and the puck member and engageable with the latter to exact varying degrees of pressure on the puck member in accordance with the pressure of the port. The piston member has a diameter smaller than the puck member. The disc member has a surface composed of material harder than the material of which the adjacent surface of said puck is composed and having a radial pattern of grooves thereon emanating from the center thereof.

摘要翻译： 提供了一种用于在具有安装有进给辊和新的辊的支撑件的类型的高速幅材处理设备上使用的抛光辊。 与每个辊相关联的可变扭矩制动器在所有幅材速度下表现出基本上恒定的摩擦系数。 提供了用于将卷筒纸从进料辊接合到来自新卷筒的卷筒纸上的装置，其包括独特设计的具有位于其中的环形凹槽的可偏转外表面的抛光辊。 制动器各自包括制动钳组件，用于与安装有辊的可旋转轴一起使用，该旋转轴具有与其相关联的盘构件。 组件包括其中具有孔的壳体。 端口在壳体的延伸部和孔之间提供流体连接。 至少部分地将圆柱形的圆盘形部件容纳在孔内。 圆柱形活塞构件可以在孔和孔组件之间的孔内移动，并且可以根据端口的压力与后者啮合，以精确地变化在压盘构件上的压力。 活塞构件的直径小于压头构件。 盘构件具有由比所述圆盘的相邻表面构成的材料硬的材料的表面，并且具有从其中心发出的凹槽的径向图案。

公开(公告)号：US06606947B2

公开(公告)日：2003-08-19

申请号：US09853965

申请日：2001-05-11

申请人： Daniel Frossard ,  Nathan Stern

发明人： Daniel Frossard ,  Nathan Stern

IPC分类号： B41L512

CPC分类号： B41F33/0036

摘要： A device for processing of printing defects detected in a printing machine which in a first phase delivers a printed support. The printing defects (20, 21, 22) on the support (1) are detected in a detection station. A database connected to the detection station can simultaneously store information relating to each detected printing defect. The processing device connected to the database can, in a second phase, process the stored information in order to evaluate the quality of overall printing of the printed support and can use various possible scenarios, even before the support (1) is cut in a third phase, to define all those portions (23) of the support which should be removed in order to improve the final quality of the printed product within the limit of a restriction in the number of portions which it has been agreed to cut out.

摘要翻译： 一种用于处理在第一阶段中在印刷机中检测到的印刷缺陷的装置传送印刷的支撑件。 在检测站中检测到支撑件（1）上的印刷缺陷（20,21,22）。 连接到检测站的数据库可以同时存储与每个检测到的打印缺陷有关的信息。 连接到数据库的处理设备可以在第二阶段中处理所存储的信息，以评估打印支持的整体打印的质量，并且可以使用各种可能的场景，甚至在支持（1）在第三个 阶段，以限定应该被移除的所有这些部分（23），以便在已经同意切出的部分的数量的限制内提高印刷品的最终质量。

公开(公告)号：US4151594A

公开(公告)日：1979-04-24

申请号：US661768

申请日：1976-02-26

申请人： Nathan Stern

发明人： Nathan Stern

IPC分类号： B65H19/18 ,  B65H23/06 ,  G06F15/20 ,  B65H25/22

CPC分类号： B65H19/181 ,  B65H23/063

摘要： A variable torque core brake exhibiting a constant coefficient of friction at all web speeds is regulated in accordance with the position of a dancer roller to maintain web tension at a constant level. Steady state changes in web tension caused by the gradual reduction of the diameter of the feed roll as web is removed therefrom are compensated for by electronically generating a signal representative of the effective diameter of the feed roll and varying the torque on the brake associated with the core of the feed roll in accordance with the signal so as to maintain a dancer roller at a substantially constant position. Transient changes in web tension are compensated for by sensing dancer roller displacement and generating a signal proportional thereto. The signal is processed by taking the derivative thereto and combining the proportional and derivative signals. The combined signal is then utilized to vary the brake torque. The signal representative of the effective roll diameter is cubed and multiplied by the combined signal so as to make the transient response of the system independent of roll diameter variations. The appropriate web tension is maintained during the automatic splicing operation by digital speed matching of the new roll and by setting the torque of the brake associated with the core of the new roll at a value determined by the diameter thereof simultaneously with the splicing operation.

摘要翻译： 根据浮动辊的位置调节在所有幅材速度下呈现恒定摩擦系数的可变扭矩芯片制动器，以将幅材张力保持在恒定水平。 通过电子地生成表示进给辊的有效直径的信号并改变与制动器相关联的制动器上的扭矩来补偿由于将纸幅从其中移除时由于进给辊的直径的逐渐减小引起的幅材张力的稳定状态变化 进给辊的芯线根据信号，以便将浮动辊保持在基本恒定的位置。 纸张张力的瞬时变化通过感测浮动轮的位移并产生与其成比例的信号来补偿。 通过取其中的导数来处理信号，并组合比例和导数信号。 然后组合的信号用于改变制动转矩。 代表有效辊直径的信号是立方和乘以组合信号，以使系统的瞬态响应与辊径变化无关。 在通过新卷的数字速度匹配的自动拼接操作期间，通过将与新卷的芯相关联的制动器的扭矩设定为与其接合操作同时由其直径确定的值，在自动拼接操作期间保持适当的卷筒纸张力。