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公开(公告)号：US5529703A
公开(公告)日：1996-06-25
申请号：US295083
申请日：1994-08-24
CPC分类号： H05B6/103 , B03C1/253 , H01F7/0247 , H05B6/36 , H05B6/44
摘要： Apparatus for inductively heating metal can lids operates at medium frequency, with a many-turn induction coil wrapped partly or entirely around the can closures. No focusing cores are required, nor need the conductors be water cooled. Can ends may be fed through the apparatus in-stick. IGBTs are used in the H-bridge of the inverter. A control system is also provided which minimizes peak current flow through the switches and obviates the need for a series inductor conventionally used for current limiting. The control system monitors the tank voltage phase angle and turns the switches on and off in optimal response thereto. Can lids are separated magnetically while being motivated by sequentially switched electromagnets, and can bodies may be rotated by a split conveyor belt while being transported through inductive heating apparatus. Closed-loop temperature control apparatus may also be included to control AC power input and to prevent overheating of the can closures in the event of unintended stoppage of the production line.
摘要翻译： 用于感应加热金属罐盖的装置以中频运行，多圈感应线圈部分或全部缠绕在罐盖上。 不需要聚焦磁芯，也不需要导体进行水冷却。 罐端可以通过装置粘合。 IGBT在逆变器的H桥中使用。 还提供一种控制系统，其使通过开关的峰值电流流量最小化，并且不需要通常用于限流的串联电感器。 控制系统监控油箱电压相位角，并以最佳响应对开关进行开关。 当盖子由依次切换的电磁铁驱动时，盖子被磁性地分开，并且当通过感应加热装置输送时，罐体可以被分开的输送带旋转。 还可以包括闭环温度控制装置来控制交流电源输入并防止在生产线意外停止的情况下罐盖过热。
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公开(公告)号：US5483042A
公开(公告)日：1996-01-09
申请号：US984174
申请日：1992-11-20
申请人： Robert A. Sprenger , Ray C. Raffa
发明人： Robert A. Sprenger , Ray C. Raffa
CPC分类号： H05B6/103 , B03C1/253 , H01F7/0247 , H05B6/36 , H05B6/44
摘要： Apparatus for spacing a plurality of substantially plate-like ferromagnetic workpieces such as can lids, in face-to-face relationship along a row, comprises a plurality of magnetic elements, each extending longitudinally along the row and different ones of the elements being disposed at different angular positions around the row, each of the magnetic elements being disposed and oriented to prevent the workpieces from pivoting about a distal edge of the workpiece due to the combined magnetic attraction of the workpiece by all others of the magnetic elements.
摘要翻译： 用于沿着一排以面对面的关系间隔多个基本上板状的铁磁性工件（例如罐盖）的装置包括多个磁性元件，每个磁性元件沿着该行纵向地延伸并且不同的元件被设置在 围绕该行的不同角度位置，每个磁性元件被设置和定向以防止工件围绕工件的远端边缘枢转，这是由于工件被所有其它磁性元件组合的磁吸引。
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公开(公告)号：US5134787A
公开(公告)日：1992-08-04
申请号：US534426
申请日：1990-06-06
申请人： Robert A. Sprenger
发明人： Robert A. Sprenger
IPC分类号： F26B23/02
CPC分类号： F26B23/024
摘要： A dryer apparatus and a drying method are set forth for drying an object coated with a solvent which volatilizes to form a VOC. The object is fed through an enclosure. It is heated to volatilize the VOC while it is in the enclosure. A catalytic oxidation unit is provided which oxidizes substantially all VOCs which flow through it. A VOC containing first gas from the enclosure is introduced to an upstream end of a catalytic oxidation zone in the catalytic oxidation unit. A substantially VOC free second gas is led away from a downstream end of the catalytic oxidation zone. Heat is exchanged between the hot second gas and the first gas. The first gas is pumped from a first location in the enclosure and impelled into and through the oxidation unit. A sufficient portion of the second gas is impelled into the surrounding atmosphere to maintain a pressure below that of the surrounding atmosphere within both the oxidation unit and the dryer enclosure.
摘要翻译： 提出了一种干燥装置和干燥方法，用于干燥涂覆有溶剂的物体以挥发以形成VOC。 物体通过外壳进给。 当VOC在外壳中时，它被加热挥发。 提供催化氧化装置，其基本上氧化流过其中的所有VOC。 将含有来自外壳的第一气体的VOC引入到催化氧化单元中的催化氧化区的上游端。 基本上无VOC的第二气体从催化氧化区的下游端引出。 在热的第二气体和第一气体之间交换热量。 第一个气体从外壳中的第一个位置被泵送并被推进并穿过氧化单元。 第二气体的足够部分被推入周围的大气中，以将压力保持在低于氧化单元和干燥器外壳内的周围大气的压力。
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