Showing papers on "Stamping published in 1980"

Bonded needled fiber glass thermoplastic reinforced mats

Abstract: A stampable thermoplastic fiber glass reinforced product is shown which contains immediately below the resin surface on both major surfaces spikes of glass fibers integral with a mat. Utilization of the spikes with reference to the laminate surface produces laminates having improved stamping characteristics.

Circuit path conductors in plural planes

Abstract: A circuit board is fabricated from a metal layer laminated to an underlying dielectric substrate. A stamping die, or roller, formed with a deeply impressed pattern of circuit paths, is indented through the metal and into the substrate. The metal is formed into circuit path conductors, electrically isolated from one another by insetting sheared away portions of the metal into indented portions of the substrate.

Ink-retaining sealing article

Abstract: A stamping article which is capable of repeatedly stamping with liquid ink, said article consisting of: (1) a stamping member having relief characters with a stamping surface and having a porosity of 20 to 50%, which is of porous structure and is produced by sintering a fine powder which is obtained by pulverizing a porous thermoplastic resin, (2) a base member capable of storing liquid ink and having a porosity of 60 to 80%, said base member comprising at least one material selected from the group porous, plastic foamed materials and fibrous, reticulate fabrics, which materials are co-fusible or bondable with said thermoplastic resin powder, said base member having a porosity 10-40% higher than said stamping member so as to insure a smooth flow of ink therebetween, said stamping member being fused with said base member.

Die cutter for stamping rectangular objects with rounded corners

Abstract: A device designed to stamp generally rectangular blister packages from an intermittently advancing laminated strip comprises a die with rounded corners whose radii of curvature are substantially larger at a transverse leading edge than at a transverse trailing edge as seen in the direction of strip motion. The width of the die slightly exceeds the advance of the strip between cutting operations whereby packages stamped from the strip exhibit obtuse angles but no pointed projections at their forward edges.

Apparatus for transferring tablet strip packages

Abstract: An apparatus in which tablet strip packages are transferred with the aid of revolving suction devices out of a horizontally-functioning stamping device to a horizontally disposed conveyor belt. The suction devices are radially secured on a transfer head, which is rotatably supported on a swing. Thus, a straight-line transfer path from stamping device to conveyor belt is provided which allows for a shorter transfer time.

Spacing grid for nuclear reactor fuel element bundle - incorporates spring constituted by triangular cut=out in sheet forming grid holding element against rigid support in opposite sheet

Abstract: Spacing grid for a bundle of fuel elements of a nuclear reactor assemblage comprises two sets of thin sheets parallel in each set and perpendicular from one set to the other to define cells of square section through each of which a fuel element passes. One sheet is least in each cell includes a spring holding the fuel elements against a rigid support made in the opposite face of the cell. Each spring is constituted of a tongue cut out in the thin sheet constituting the grid. Each tongue is connected to the sheet by a wide base and is in the form of a triangle. A stamping at the apex of the triangle transmits the force of the spring to the fuel element. The profile of the spring is completely effaced with the exception of the stamping in the thickness of the thin sheet when the fuel element is put into place. Grid is simple to fabricate and gives good circulation of the cooling fluid, good holding of the fuel elements and presents a small neutron absorption.

Miniature fan motor stator assembly - has stamping forming stator casing provided with tongues bent to form radial fixing arms

Abstract: The stator has an integral fixing arm projecting radially outwards from the front side of the stator casing and used to secure the motor in a reception mounting. The stator casing comprises a rolled sheet metal stamping (2) with the fixing arm formed by a tongue (21,22,23) at one side of the stamping (2) initially bent back through 180 degs. and then bent upwards through 90 degs. to project perpendicularly from the plane of the stamping (2). The projecting part of the fixing tongue (21,22,23) lies in the centre of gravity plane of the motor. Three fixing arms are equally spaced around the stator. The motor is suitable for fully automatic mfr. and assembly.

Moulding from continuous thermoplastic web - calendar rollers with surface cavities produce preforms from extrusion for subsequent moulding

Abstract: Thermoplastic mouldings are produced by extruding molten polymer through the gap between counter-rotating rollers and calendering into film or sheet, this is shaped (at least in parts) and stamped out. The calendering pressure is sufficiently high to produce preforms from the film/sheet; these are moulded and stamped out from the web. Minimum wastage of material in contrast with e.g. deep drawing or stamping from continuous extruded material.

Electrical contact and method of making same

Abstract: A stamped contact is disclosed having an integral closed crimp barrel suitable for military/aerospace applications. In one embodiment, the crimp barrel has a rectangular cross section. A method is disclosed for making the contact in which the contact is stamped from a sheet having a relatively thick marginal edge which provides the rectangular crimp barrel for the contact. The bore in the barrel is drilled after the stamping operation.

Mandrel jaw and method of manufacture

Abstract: A mandrel jaw and a process for forming it from a strip of steel including the steps of forming a shape, bending portions of the shape and then stamping the bent body into the configuration of the jaw.

Variable speed, synchronously operable, stock material feeding and forming apparatus

Abstract: A pair of continuously driven pull rolls of stock puller supported on a table having a longitudinal bed engage a web of the stock material to continuously unreel the stock material from a coil. The pull rolls are rotated by a drive shaft that is coupled to an input shaft of a feed roll unit. The input shaft is continuously rotated by a pulley-belt drive connection from a common power shaft. Continuous rotation of the input shaft is converted to intermittent rotation of a feed roll that intermittently advances the stock material to a stock material forming device, such as a material stamping or punching unit followed by a material cutting unit. The stamping and cutting units also include input shafts that are drivingly connected by pulleys and continuous belts to the common power shaft. The common power shaft is continuously rotated by a pulley-belt drive connection from an output shaft of a variable speed DC motor supported by the table. The output speed of the motor shaft is adjustable to rotate the common power shaft at a preselected speed to vary the feed rate of the stock material to the stamping unit. The stamping unit, as well as the stock puller and cutting units, being connected to the common power shaft are responsive to a change in the feed rate to maintain the operation of these units synchronized with the material feeding operation.

Method for making a die for stamping metal reflectors

Abstract: A method for making a metal stamping die suitable for use in forming sheet metal reflectors for photographic use. The structure of the metal stamping die is made in the manner of the method to compensate for spring-back characteristics of a material used to form a reflector by first constructing a test die which has a predetermined shape related to the desired reflector shape. A comparison is then made between a test workpiece made with the test die and the desired reflector shape to determine the die shape that produces a corresponding portion of the reflector shape. Finally, another die is constructed by shaping it in accordance with the comparison to obtain a final die shape that will acceptably produce the desired reflector shape.

Thermal stamping apparatus

Abstract: A thermal stamping apparatus wherein the speed at which a heat transfer roll traverses the surface of an object can be varied in response to changes in the surface temperature of the transfer roll.

Disc brake bracket accommodating sliding component - has separate component of stronger material forming slide surface

Abstract: The disc brake bracket has a separate component forming the supporting surface along which a brake component slides. This component is of material having a greater strength than that used for the bracket itself, and has ribs or lugs, so as to form a composite part with the bracket, their shape and position being such as to increase the strength of the latter. Aluminium alloy or plastics can be used for the bracket, while the component can be a steel casting, forging or stamping, typically of stainless steel, and surface-hardened.

Forming method of thermoplastic synthetic resin sheet

Abstract: PURPOSE: To draw deeply a thermoplastic synthetic resin sheet efficiently while its thickness is prevented from becoming irregular by a method wherein stamping, vacuum and/or pressure forming are combined and conducted in sequence in a solid phase state. CONSTITUTION: A blank (a resin sheet as a material) 6 which is heated to 0W 10°C below the melting point and is in a solid state is arranged between an upper die (female die) 3 and a lower die (male die) 4, held as a slight slip is allowed between the blank holder 5 of the lower die 4 and the circumferential edge part 17 of the upper die 3 and the upper and the lower die are clamped at a desired depth to stamp the blank 6. Next, the nipping force against the blank 6 is increased by cushion pins 13 and the inner part of the die is sealed and then a vacuum is produced in the upper die 3, pressure is given in the lower die 4 and a half-finished product 14 obtained from the blank 6 is formed in vacuum and/or under pressure to provide a formed part 18. COPYRIGHT: (C)1982,JPO&Japio

Processing thermoplastic film mouldings with exact register - in which controller uses hole in film to adjust processing tool position

Abstract: Thermoplastic mouldings are produced by hot deep drawing a heated film and conveying the shape to further processing point e.g. for printing, perforating, loading, stamping or stacking with an appropriate aligning devices for register. Near the hot forming point, the film receives a marker which is used by a justifying device at the next process, the actual position of the marker is fed to a controller which registers the processing tool longitudinally and/or laterally in relation to the moulded shape by means of an adjusting mechanism. Inexpensive design of provides exact register, allows for conveying and shrinkage of film, and is suitable also for shallow articles.

Combined forming and stamping press - uses form section to support workpiece for punching hole

Abstract: The machine for the prodn. of pressed parts with holes has a hydraulic press with movable and stationary form sections. The punch and die of the tool are located in the movable and stationary form sections of the press. A control unit actuates the punch and die after the forming process is finished and before the press is opened. The punch and die are carried by the pistons of hydraulic working cylinders which are connected to a pressure source via a valve actuated by the control unit.

Cam segment for a knitting machine

Abstract: The invention relates to a cam segment with an assembly device for the assembly of cam sections. To facilitate the production and assembly, the assembly device comprises a receiving plate or at least one spacing disc fitted on a receiving plate, such that in the assembly surfaces of the cam sections and of the receiving plate and/or of the spacing disc, which are made by stamping and/or punching and/or fine blanking, recesses are formed in such a manner and/or locating pins protruding into said recesses are formed such that the position of the cam sections on the cam segment are clearly established by the locating pins and recesses.

Laminated ironncore for electrical machinery and apparatus

Abstract: PURPOSE:To prevent a laminater iron-core from inclining for eliminating magnetic vibrations by laminating iron cores, shifting them one by one by an equally distributed angle corresponding to a common divisor of the number of such grooves as clamp groove on stamping plates which are used to form a laminated iron-core, by using these grooves. CONSTITUTION:When an iron-core material on which the coil-winding slot, clamping groove, welding groove, iron-core arranging grooves, and so on are previously stamped comes, a pin 5 in a punch 2 for punching an outer diameter goes into a groove on the iron-core material. After the punch 2 lowers and punches the iron plate, a limit switch 8 is actuated to send a signal to a pulse motor 3, which rotates only by an angle set previously, so that through bevel gears 3a and 2a the punch 2 rotates only by an equally distributed angle corresponding to a common divisor of the number of the grooves, and since the pin 5 is in the punched iron-core, the iron core rotates by the same angle as the rotation of the punch. Thus, laminating the punched iron-cores, shifting them one by one, prevents the laminated iron-core from inclining.

Forming method and device for tile having embossed figure

Abstract: PURPOSE:To improve a cutting precision, to prevent adjoining tiles to lose the appearance of figure embossed on their surfaces when cut tiles are laid in a place, and thereby to enable the expression of a whole pattern which is formed in a precisely nice and neat order, by simultaneously cutting a sheet by means of cutters when an embossed figure is produced. CONSTITUTION:Cutters 4 are hanged down from two bottom ends of a base 6 of a mold 11, a stamping plate 2 being located between the cutters 4 so that it is free to move vertically toward the base 6. A spring 7 is placed between the base 6 and the stamping plate 2. A given embossing pattern 14 is provided in a bottom surface of the stamping plate 2. A heated plastic resin sheet 1 conveyed by a conveyor is stopped when it is positioned right under the mold 11, the mold 11 being then lowered. Thereby an embossed figure is produced in a upper surface of the sheet 1 by means of the stamping plate 2. Further lowering of the mold 11 results in compressing the spring 7 and causes only the cutters 4 to be lowered to cut the sheet 1. In this way, a tile having an embossed figure is produced.

Press for stamping sheet metal discs - has punches mounted on transversely reciprocating carriage to stagger punched-out discs of adjacent rows

Abstract: The press has a bedplate (17) with two columns (10, 11) which support a cross beam (12). The cross beam is fitted with a rail (13) for the carriage (15) which carries the punch (18). The material (19) is moved through the press with a step-wise motion and the carriage (15) moves from side to side between each step of the material feed. The motions of the carriage (16) and the material feed mechanism are co-ordinated so that the maximum possible number of discs is cut from each sheet of material with the least possible scrap.

A Two-Side Hot-Dip Galvanized Steel Product for Exposed Automotive Body Panels

Abstract: The processing, product characteristics, properties and performance are discussed for PAINT-TITE B, a one-side hot-dip galvanized, one-side galvannealed sheet steel product applicable to exposed automotive body panels The critical control exercised over the thermal input to limit zinc-iron alloy growth is described as essential for imparting the desirable coating characteristics Product appearance, formability, corrosion resistance, paintability, and weldability are discussed as related to exposed panel criteria Successful stamping plant experience is summarized

Device for engraving stamp by laser beam

Abstract: PURPOSE:To engrave automatically with high accuracy without selecting material of an original drawing by holding a material of stamp at one side of a movable table while holding the original drawing at the outer side thereof engraving reversed figures of the figures written on the original drawing onto the stamping surface of the material of stamp with laser beams. CONSTITUTION:A material of stamp 10 is held on one side of a movable table 1, reciprocating in a direction of X axis in parallel in a same plane while moving in a direction of Y axis in parallel at a constant pitch, and an original drawing 11, wherein figures such as characters or the like are drawn directly or indirectly with figures facing toward a front direction, is held on the other side of the movable table. When a light spot consisting of light beams from a projector 19 is scanning on the surface of the original drawing 11, strength and weakness of the reflected light is detected by a photoelectric transducer 20 and beam projections from a laser beam oscillator 18 to the surface 10a of the material of stamp are effected intermittently. According to this method, reversed figures of the figures on the original drawing 11 may be engraved onto the surface 10a of the material of stamp.

Trunk lid prodn. involving folding - uses single piece of material with cut=outs at corners shaped by stamping

Abstract: The trunk lid production process enables the lid to be formed in one piece with the side sections (2). Portions (3) are cut out at the four corners from the outer edges; these portions are square or rectangular initially and then with half-round corners (14). The edges of the sides are joined at the corners when the complete lid is produced. The initial sheet of material can be shaped by stamping.

Installation for the stamping of advancing rolling stock in rolling mills and continuous casting plants

Abstract: The invention comprises an installation for continuously stamping advancing rolling stock and the like. A pair of cylinders are positioned having their bottom ends facing each other and their top ends extending in substantially opposite directions. Each of the cylinders has a piston movable therein and a piston rod connected thereto. The piston rod of the first of the cylinders is connected to a stamping pendulum, having a stamping die thereon; whereas, the piston rod of the second cylinders is connected to a stationary point. The first cylinder has at the top end thereof a stationary intermediate piece with a passage for the piston rod provided therein. The passage has an internal diameter exceeding the external diameter of the piston rod and a projection located on the piston at the side of the intermediate piece. The projection follows the motion of the piston and sealingly engages the passage during the extension of the piston.

Compression force measuring device for hydraulic press - uses two symmetrically-spaced pressure capsules or expansion strips

Abstract: The force measuring device, for a press for mfg. fire-resistant ceramic elements uses two pressure sensors positioned symmetrically and at the greatest possible distance from the longitudinal central axis of the press. The sensors are coupled to an evaluation and/or display circuit, which is coupled to the control circuit for the press. The sensors may comprise two pressure capsules beneath the lower stamping die, or expansion strips coupled to the vertical faces of two support plates beneath the latter.

Intermittent drive for film packaging machine - has expansion in conveyor chains overcome by final driven linear portion

Abstract: An intermittent feed drive for a machine which deep-draws mouldings from thermoplastic film and which has a number of successive operating points, in partic. for a packaging machine with heating, moulding, filling, sealing, and stamping positions, has two conveyor chains running from one end to the other over end guide sprockets to carry detachable holders and engage the sides of the film. The drive for the chains has a linear stepwise conveying part for at least one half of the two chains. Provides constant feed steps regardless of any expansion of the chains holding the film.