Class 72/405.02 - Belt or chain work carrier

Subclass of Class 72 - Metal deforming
Definition: Device wherein the means to advance work between tool-couples
No. of patents: 30
Last issue date: 02/19/2008

Number	Title	Issue Date
7331874	Method for producing circular washer Circular washers are formed by the following steps: at least two through holes are provided in the middle of a belt of material, which are also used for positioning and advancing the belt; a residual slot is formed between every two adjacent through holes, thereby f...	02/19/2008
7237421	High-speed sheet feeding without grip pliers The invention concerns a conveying device for sheet steel plates and for moving several sheets (1, 1′) inside or through a working zone (W; 50) wherein the sheets are machined. The inventive feeding device comprises first and second sheet feeders (	07/03/2007
7237479	Device for successively transporting sheets in a platen press A device for successively transporting sheets in a platen press includes gripper bars with respective ends fixedly attached to two flexible of endless loop elements. Each loop element is engaged respectively with an intermittent drive wheel and at least one free whe...	07/03/2007
7222416	Edge bending apparatus A first hemming mold unit (20) and a second hemming mold unit (30), are installed in a single pressing machine. The first hemming mold unit (20) performs partial bending of an edge (95) of a workpiece (93; 96). The workpiece (93...	05/29/2007
7128195	Workpiece transfer system for stamping press A transfer system for transferring workpieces between successive die stations in a stamping press employing elongate bars with workpiece grippers mounted thereon. Two elongate support beams are mounted on vertical primary supports on opposite sides of the press. Two...	10/31/2006
7114248	Method of handling an electrical component A method of handling an electrical component is disclosed. The method includes initiating a first engagement between the electrical component and a conveyor, initiating a second engagement between a tool and the electrical component without altering the first engage...	10/03/2006
7080541	Automatic feeding machine with switchable conveyor An automatic feeding machine for transferring semi-manufactured products (40) between a progressive die (10) and a single station die (30), includes a frame (22), a feeding device (20), and a manipulator (50). The feeding de...	07/25/2006
7017383	Press transfer system mounting and method A mounting and method for a multistation stamping press part transfer system in which transfer drive modules are mounted to pivotal supports so that rail-gripper assemblies connected to pairs of modules can be oriented to transfer blanks/parts through the press in e...	03/28/2006
6968725	Flexible transporting apparatus for presses The invention proposes a transporting apparatus for transporting single or double workpieces through processing stations of presses, in which apparatus up to 9 degrees of freedom are integrated in the transporting system. Necessary changes in position for, for examp...	11/29/2005
6715332	Method of drawing metal workpieces and drawing unit for a drawing machine A drawing apparatus for drawing metal and articles has at last one drawing carriage and a linear motor complex which determines the pattern of movement of that carriage and hence of the drawing operation. ...	04/06/2004
6453718	Multistation press A multistation press, particularly a suction device press, for machining sheet metal parts is provided for the successive machining of workpieces in several stages. Several press stations are arranged behind one another so that workpieces pass through the...	09/24/2002
6029329	Belt-feed trim and form apparatus An apparatus is provided that increases the efficiency of material handling apparatus, such as those used to trim and form electrical leads on solid state electrical devices. The apparatus includes a plurality of rotatable pulleys, an endless belt capable...	02/29/2000
5934133	Bending press system A bending apparatus includes: an upper bending die 63U for downward bending both ends of the plate material gripped between upper and lower plates 59U and 59L provided on upper and lower frames 35U and 35L, respectively and a lower bending die 63L for upw...	08/10/1999
5694801	Bending press system A bending apparatus includes: an upper bending die 63U for downward bending both ends of the plate material gripped between upper and lower plates 59U and 59L provided on upper and lower frames 35U and 35L, respectively and a lower bending die 63L for upw...	12/09/1997
5584205	Transport system A transport system for transporting workpieces through machining stations of a press device. The transport system includes at least one independent transport device dedicated to each machining station, the transport device being effective for receiving an...	12/17/1996
5570604	Die transfer system with indexing conveyor supported on a wheeled cart A die transfer system that includes a lower die, an upper die carried for reciprocal movement toward and away from the lower die to perform at least one operation on a workpiece positioned therebetween, and a conveyor arrangement for sequentially conveyin...	11/05/1996
5390525	Indexing conveyor for a die transfer system A die transfer system that includes a lower die, an upper die carried for reciprocal movement toward and away from the lower die to perform at least one operation on a workpiece positioned therebetween, and a conveyor arrangement for sequentially conveyin...	02/21/1995
5102278	Press with external tooling arrangement A punch press has first and second sets of tooling mounted longitudinally of a press conveyor belt. The second set of tooling is located externally of the usual press columns. A second ram slidably mounted on the outside of the columns is driven by a conn...	04/07/1992
5048412	Apparatus for processing semiconductor packages and the like In a press for cutting and bending the leads of semiconductor packages, a series of cams on a common drive shaft operate both the feeding mechanism and the working presses to achieve high speed operation, up to 500 cycles per minute, through accurate timi...	09/17/1991
5035134	Indexing conveyor for a transfer die system A transfer die system that includes a fixed lower die, an upper die carried for reciprocal vertical movement toward and away from the lower die to perform operations on workpieces positioned between the dies, and a conveyor for feeding workpieces in seque...	07/30/1991
4932822	Press and transfer tool A single action press having a bed 14, a ram 11 movable towards and away from the bed, a first progression of tool pairs 17a,17b arranged along the bed, a conveying mechanism 18 to transfer a component from each tool pair to the next, and a second progres...	06/12/1990
4904140	Dual lane conversion system A press for converting work pieces into finished parts has an elongated bolster mounted on a press bed. The bolster supports columns on which a ram is slidable. The bolster also supports the lower die shoe of the press tooling. A conveyor or transfer syst...	02/27/1990
4799846	Transfer belt for can end conversion press A conversion press assembly for forming easy open beverage cans and a transfer belt conveyor therefor. The press assembly comprises a main press having tooling therein for forming the can ends and a can end transfer belt extends therethrough to carry can ...	01/24/1989
4723882	Apparatus for forming easy-open can ends A conversion press assembly for forming easy open beverage cans and a transfer belt conveyor therefor. The press assembly comprises a main press having tooling therein for forming the can ends and a can end transfer belt extends therethrough to carry can ...	02/09/1988
4696177	Method and apparatus for forming containers A method of forming a container in one or more double acting presses includes the steps of blanking, drawing an inverted cup and reverse drawing the inverted cup while retaining a flange thereon at a first station and then transferring the cup to a second...	09/29/1987
4619574	Loading equipment for manipulating tubes in upsetting presses In a tube-upsetting press, of the kind having a vertically split die with vertically spaced shaping faces for successive setting operations, metal tubes to be upset are handled by sets of grippers which move cyclically along a closed path perpendicular to...	10/28/1986
4546873	Article retention system for transfer equipment The specification discloses an article retention system for transfrer equipment, particularly transfer equipment for carrying can ends to a series of stations to produce an easy-opening end. The can ends are supported by an indexing belt and contact means...	10/15/1985
4255955	Automatic safety mechanism for forming machines The present invention relates to a safety mechanism for a multiphase forming machine, in which trigger signalling is used to automatically stop the machine by means of the insulation state formed between one leg of a clamp and a stock conveyor to which th...	03/17/1981
4213324	Punch press and method for making can ends with closures A punch press comprising multi-station, progressive die tooling, for providing metal covers with easy-open closures, is fitted with a work transfer mechanism facilitating successive positioning of the covers, the tooling employing features thereof to prec...	07/22/1980
3969919	Workpiece feed channel A workpiece feed channel interposed between a metal peeling machine and straightener for elongated, rotating or non-rotating, metal workpieces. The channel includes a plurality of opposed pairs of driven profiled elements having workpiece receiving openin...	07/20/1976

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Class 72/405.02 - Belt or chain work carrier