Showing papers on "Stamping published in 1982"

Stamping foils and methods

Abstract: A stamping foil for forming printed circuit patterns on insulating or poorly conductive substrates comprising an electrically conductive layer made of a highly conductive metal, such as copper, which is endowed with a sufficiently low shear strength, even in thicknesses of 10 microns or more, to permit easy and sharp separation of the activated (imprinted) and non-activated portions of the foil. Such a low shear strength may be achieved with fibrous or fibrous-granular crystallite structures, wherein the fibers are oriented approximately at right angles to the surfaces of the foil, and, in addition, by doping agents containing carbon, nitrogen and sulfur. The foil may comprise a bonding layer for bonding the conductive layer to a substrate, or such a bonding layer may be applied to the surface of the conductive layer before the stamping operation. The conductive layer may be either self-supporting, or it may adhere to a carrier tape through an intermediary separating layer. In the latter case, the bonding and separating layers become activated when compressed by a stamping die or stereotype, whereby the conductive layer becomes bonded to the substrate and separated from the carrier tape in the activated areas. The activated and non-activated portions of the foil are then separable by pulling the carrier tape away from the substrate.

Sheet processing apparatus

Abstract: Apparatus for processing a sheet of material such as cardboard intended for making a folding box or case, comprises a stamping plate for carrying the sheet and co-operable with a tool. The stamping plate lies on a table plate of a frame structure which has holders for releasably carrying a form which extends parallel to the table plate, and at least one bridge assembly which extends movably above the table plate. A carriage is carried on the bridge assembly and moves transversely with respect to the direction of travel thereof. The carriage carries at least one vertically movable pressure member directed towards the table plate.

Device for cutting and/or stamping metal bars and sections

Abstract: A device for cutting or stamping metal bars and sections comprising a machine frame having a slide which is guided for movement in a frame and which is driven in the direction of its length by an hydraulic or pneumatic drive which applies a driving force substantially along the longitudinal center line of the slide, a pair of tools one of which is connected to the machine frame, the other being carried by the slide, said pair of tools being laterally offset relatively to the line of application of the driving force, and the machine frame being provided with laterally spaced guides both above and below the tools for guiding said movement of the slide. An additional force is applied to the slide to oppose the torque which in use will be generated by the force couple which is formed by the aforesaid driving force applied by the hydraulic or pneumatic drive and the cutting or stamping reaction force which will be developed in use by the pair of tools.

Apparatus for stamping indicia on materials

Abstract: In a marking system for stamping materials such as aluminum strip, a pulse of determined energy is supplied to a solenoid, to impart a determined kinetic energy to a die. The die is guided to dissipate substantially all of this kinetic energy in the deformation of the material being stamped. The pulse of energy applied to the solenoid may be controlled by a programmable computer, programmed to control the duration of time that a current is applied to the solenoid. The computer may control a plurality of such solenoids, controlling the times and relative numbers of operation of each of the solenoids.

A method of forming a sheet

Abstract: A method of forming a sheet of e.g. metal (10) includes the step of providing a plurality of elongate slots (13) longitudinally of fold lines (14) so that, when portions (17, 18, 19, 20, 21 and 22) are bent out of the plane of the lamina (11) stamped from the sheet (10), the force necessary to bend bridge portions (15) separating adjacent slots (13) is less than would be required to bend the material of the lamina (11) if the slots (13) were not present. The apertures may be stamped out simultaneously with stamping the sheet from stock.

Die forming method and machine

Abstract: A method and machine for forming a complete stamping die. A material erosion machining apparatus with a movable work table assembly and an extractor is used to draw a male punch from a female die blank. The female die blank has a rough-cut die opening. The part removed from blank is a rough-cut male die punch. The die opening side walls and the rough-cut punch side walls are generally parallel and tapered in the direction of the intended die draft. The die punch fits in the rough-cut die opening of the female die blank. The work table assembly and the ram platen are moved away from each other, simultaneously with material removing electrical energy between work table assembly and extractor. One work piece is attached to work table assembly and the other work piece is attached to the extractor and, as work table assembly and extractor are moved, the die punch blank is moved through the die opening of the female die blank with the tapered side walls in opposition to the direction of movement. As this passage is made, material is removed from the female die blank and the male die punch to generate the preselected die draft, die clearance, and exact registration. A complete die set is so formed by the method and machine.

Counting stamper apparatus

Abstract: A pressure-actuated switch mounted in the handle of a self-inking stamper is actuated by a stationary plunger assembly which extends into the handle and pressures the switch when the stamp element is moved into contact with a surface being marked. Actuation of the switch advances a counting circuit remotely located inside the lid of a lockable box. A circuit times the stamp element in the stamping position to avoid multiple markings on a single count.

Stator for ball motors

Abstract: Without exception, the iron sheets of the stator teeth of electric motors are up to now produced by stamping. The invention relates to electric motors in which the stack of iron sheets of the stator is largely composed of rectangular metal sheet strips cut from a strip.

Production of stamped plastic sheet

Abstract: A stamped plastic sheet manufacturing method includes immersing a molten extruded thermoplastic sheet into a liquid refrigerant just prior to passing through a pair of stamping rolls having tooth-like or vane-like projections. In this manner, a skin layer is formed on the surface of the molten plastic sheet prior to stamping. Upon stamping, the sheet is tensioned by the confronting crests of the above tooth-like or vane-like projections and then removed from the liquid refrigerant after the interior of the sheet has been hardened to form a stamped sheet having a substantially uniform thickness.

Track chain link and forging process for the manufacture of track chain links

Abstract: The invention described herein concerns a forging process for the manufacture of track chain links, especially for worksite machines and vehicles; this process produces links that conform to the tolerances required by the dimensions and the surface quality of opposed attachment mounting and link contact surfaces and nut seats of finished links without it being necessary to machine these surfaces or nut seats. This process includes heating a metal billet in an electric furnace, the billet having a mass that is approximately equal to that of a finished link, preforming the billet, then flat stamping the heated billet. A combined shaping and levelling step carried out on the stamped piece forms parallel opposed sides and nut seats in predetermined spaced relationship to each other. The resulting link is controllably sized and then subjected to a heat treatment. At the end of this process, which requires no machining, a link is obtained (1) whose opposed surfaces (10,11) and nut seats (32,33) have geometric and dimensional relationships that are conform to the limits of the required tolerances.

Power amplifier, in particular for actuating the brakes of vehicles

Abstract: A reaction device (72) for transmitting a reaction force, proportional to the useful power, from a power-output member (74) to an actuating member (70) has a stepped cylinder (76) which is produced as a sheet-metal stamping and which in a wide cylinder part (78) accommodates a deformable body (80) of constant volume as well as a piston-like head piece (82) of the power-output member (74) and in a narrower cylinder part (84) accommodates a piston-like end piece (86) of the actuating member (70). The deformable body (80) is put in the raw state into the sheet-metal stamping and sets therein. The front and rear end faces (D and E) of the deformable body (80) thereby retain an exactly defined position, and the body completely fills the inner space of the sheet-metal stamping between these two end faces (D and E) so that it transmits a reaction force, corresponding to the useful power in an exactly reproducible relationship, from the power-output member (74) back to the actuating member (70).

Apparatus for stamping indicia on workpieces moving in a path

Abstract: An apparatus for stamping indicia on workpieces moving in a path, in a combination which comprises a rail extending along but spaced from the path of workpieces movement, and a stamping unit which is movable along this rail to and from a rest position adjacent an end portion of the rail, and which includes a housing having a lower part which is movable transversely to the workpiece movement path. Cam and follower means are provided for biasing the lower part against a workpiece moving in the path, and an inking box adjacent the end portion of the rail is so positioned so as to be in tight engagement with the housing of the stamping unit when the unit is in its rest position, so as to be protected against ink evaporation and entry of contaminants.

Protective grid for electric toaster - has reduced heat radiation transmission characteristic adjacent heating element

Abstract: The electric toaster has a radiation heating element (46,48) and a protective grid (34,40) preventing the inserted bread from directly contacting the heating element (46,48). The grid (34,40) has a lower heat radiation transmission characteristic in the area directly adjacent the heating element (46,48) to prevent non-uniform browning. Pref. the grid (34,40) is stamped out from a sheet metal plate and has a number of parallel slits for passage of the heat radiation, which have a reduced width in the vicinity of the heating element (46,48). The sheet metal plate is bent into a U shape after stamping out the slits, with two depending solid sides (30,44) enclosing a pair of heating elements (46,48) either side of the inserted bread.

Apparatus for stamping perforation holes in turf surfaces and for introducing cultivated grass.

Abstract: 1. A movable apparatus for punching perforation holes (6) in grassed surfaces and for introducing cultivated lawn grasses into the punched holes, the apparatus having punch tools (5) and cyclically operating planting tools (7) which are arranged at a predetermined distance behind the punch tools, which are periodically raised and lowered and which are advanced by the predetermined distance (hole spacing), characterised in that a plurality of devices are provided each consisting of a punching tool (5) and a planting tool in the form of a seed dispenser (7), of which in each case at least two devices operate in phase opposition in such a way that a continuous form engagement of the punch tools (5) and a defined advance step is ensured.

Production system in continuous forming line

Abstract: PURPOSE:To intend shortening of the time for production, by extruding thermoplastic resin like a sheet, cutting it in the width direction and forming the cut unit one by one, then stamping out the formed product one by one by the trimming press and departing it from the residual scrap part. CONSTITUTION:After thermoplastic resin is continuously extruded from the T die 2 of an extruder 1 and a sheet like article S is obtained, it is cut into a single sheet 16 as the cut sheet of the predetermined length by a cutting device 15. Then the single sheet 16 is carried successively to the forming apparatus 19 and each single sheet 16 is formed into the formed sheet 22 of the predetermined shape there. After that, the formed sheet 22 is carried to a trimming press 25, trimmed and separated into the product part (formed product) 29 and the scrap part 30. As in this way, the line entirety is separated into the foregoing and following processes against cutting, then the trouble is minimized.

Cross-stitch design process

Abstract: This invention provides a cross-stitching arrangement in which a desired embroidery pattern first is laid out in outline form on a paper and then reproduced by stamped crosses on the material that is to receive the cross-stitching. The paper layout may be on quadrille paper with rows of aligned squares encompassed within the pattern corresponding in size and position to the crosses to be stitched to the material. Alternatively, the pattern may be laid out on plain paper with crosses applied in aligned rows as defined by the pattern, these rows of crosses then being reproduced on the material in giving the locations of the cross-stitches to be made. The stamping of the material, and of the paper in the alternate procedure, is accomplished by a stamp having a predetermined size of cross marking.

Tool for punching small pieces from thin metal or plastics sheet - with sprung spacers to restore the piece for removal with the matrix sheet

Abstract: A tool for punching a succession of small pieces out of a continuous thin strip of metal or plastics material comprised opposing platens supporting respectively a hollow punch and a complementary pillar, where each is complemented by a shorter spring loaded plug and collar respectively backed by solid spacers so that the depth of overlap of the punch and pillar is limited to a depth which is slightly less than the thickness of the stock material being punched. The relative ratings of the springs of the punch core and pillar collar spacers resepctively are such that the punched section remains held against the top of the pillar while the floating collar around the pillar restores the stock strip to the level of the punched out material on top of the pillar. The elasticity of the borders of the sheared material maintains the piece in the stock strip by local radial thrust so that the pieces may be carried away for separation from the strip at another location. Suitable for stamping small panels from e.g. aluminium strip about 0.5mm thick or "Makrofol" (RTM-polycarbonate) sheet about 0.4mm thick, as used for e.g. casing panels or windows for measuring instruments etc. Eliminates need for manual or automatic removal/ejection systems to be associated with the punch cutting tool, maintains support and alignment of the cut pieces until they can be separated in a controlled manner, e.g. by using an elastic pad deformed by a pressure differential to disengage the pieces on to a suction tool, as described in FR. 21.6.81-021106.

Manufacture of case for cell

Abstract: PURPOSE:To offer a call having stable discharge performance and an excellent property of anti-leakage of liquid by means of continuous single punching-and- drawing process. CONSTITUTION:A stainless steel plate, a nickel plate or a nickel-plated metal thin plate 1a is strongly fixed on the stamping dies 9 with pressing plates 12 in order to perform disclike stamping by means of said dies 9 and stamping punches 13 corresponding thereto. When the stamped metal material is pushed into the dies 9, its cut-away section is squeezed by the sides of the dies 9 to be deprived of birrs or the like accompanying stamping. Further the punche 13 goes into the dies 9 and by means of the drawing process through the recess 14 for drawing in the center part of the punches 13 and drawing process accompanying the rising punch 15 for drawing inside of the dies 9, a cup-shaped cell case 1 for a small-sized button type cell is formed. The opening fringes 16 of the cell case 1 drawing-processed in the cup-shape in this way are formed into a straight-cut state free from birrs or the like.

Production of external parts for timepiece

Abstract: PURPOSE:To obtain external parts for timepieces which have adequate hardness and excellent appearance and quality by using a specifically composed ferritic stainless steel and executing the heat treatment before stamp forging and after final stamping at the same temp. CONSTITUTION:The external parts for timepieces are prepd. by using the ferritic stainless steel consisting, by weight, of 13-21% Cr, 2-6% Ni, 2-4% Cu, 1-6% Mo, 1.0-4% Al, 0.1-3% Si, <=0.05% C, <=0.5% Mn and the balance iron and unavoidable impurities. The heat treatment before the stamp forging and the heat treatment after the final stamping are executed under the conditions under which the parts are heated to 850-950 deg.C and are then quickly cooled. The parts are reheated to 450-600 deg.C at need in succession to the heat treatment after the final stamping and are then subjected to an age hardening treatment by furnace cooling. The external parts for timepieces having the good appearance and quality after polishing are obtd. by using the precipitation hardening type soft magnetic stainless steel according to the above-mentioned method.

Safety closure for bottles and containers

Abstract: The stamping of the material of the closure cap or the screw connection to about 9/10 of the top surface is intended to prevent tearing off but to allow tearing open of the lid before the glass container can burst under excess pressure and thus lead to a great risk of injury. The problem can be solved in a simple manner during manufacture of the screw connection or cap by stamping the material to a minimum of its normal thickness. The use of the safety closure as a screw connection, crown cap or closure is primarily used in the beverage industry.

Method and stamping tool for waste-free stamping of packaging strips and packaging strips so fabricated

Abstract: The invention sets forth a method and a corresponding stamping tool for waste-free stamping out packaging strips such as the so-called press-through packages. These press-through packages are made of a strip of foil comprising a lower foil strip with depressions for receiving tablets, lozenges or the like and a foil cover strip which closes off the depressions. The individual packaging strips, in order to enable problem-free further processing and to avoid injuries, have rounded corners. In order to avoid sharp, hooklike protrusions, which in the waste-free stamping out of packaging strips are created whenever there is shifting in the advancement of the length of foil, the forward stamping edge of the stamping tool is embodied in accordance with the invention such that when a packaging strip is stamped out, this forward stamping edge intersects the rearward edge of the previously stamped packaging strip such that an obtuse angle is created at the front edge of the packaging strip, seen in the direction of advancement of the strip. By so embodying the forward stamping edge of the stamping tool, packaging strips are produced which have a substantially uniform outer appearance, even despite various shifts in advancement, all four rounded corners of one packaging strip have the same radius.

Preloaded and adjustable blowoff valve - uses hollow screw to house grub screw and has spring, valve ball and block incorporating seat

Abstract: The blow-off valve uses a pre-loaded adjustable spring (16) to constrain a valve seat (10). An interchangeable housing (1) in the form of a tubular screw, incorporates the seat in a supporting element (3) which is securely fixed in the screw. The valve body is a ball (19) of which the axial sliding movements are controlled by lateral guides (8) mounted on the support (3), and the latter may be secured in a stepped length (4) of the screw bore. The guides may comprise a bore of ball dia. divided by a radial groove (7), the seat (10) being formed by stamping with a ball. A grub screw (12) with a dowel (15) may retain the spring (16) against a flanged (17) adaptor (18,19).

Moulding embossed or perforated thermoplastic film lids - in single operation in tool using compressed air

Abstract: Shallow thermoplastic mouldings, such as lids, are produced by drawing and stamping out from film. Drawing is performed by compressed air on a male forming tool inside a chamber and a punch then stamps out mechanically, the finished article being moved into a stacking holder by an ejector when the chamber is opened again. After drawing, the chamber is vented, the moulding is mechanically postformed by briefly pressing against the chamber wall, it is then moved off the wall, the chamber is opened, and the moulding is pressed out into the stacking holder. Process enables mouldings to be embossed perforated in one operation, using one fixed tool.

Foil stamping device

Abstract: PURPOSE:To provide a device capable of printing by foil stamping an elongate article in a single step by a method wherein rolls for pressing stamping films at adjusted pressures are provided to be faced to respective surfaces to be printed of an article which has a plurality of elongate upwardly directed surfaces to be printed by foil stamping. CONSTITUTION:Fitting frames 42, 43, 44 such as rolls having hydraulic cylinders 39, 40 41 are provided at a top plate 45 which is fitted to an arm 2 for roll supporting frames. The roll supporting frames 24, 25, 26 fitted with rolls 18, 19, 20 are ridigly fitted to piston rods 51 of the hydraulic cylinders. On the other hand, the stamping films 15, 16, 17 supported by supporting mechanisms are respectively placed between the surfaces 12, 13, 14 to be printed to the article 11 being set on a stand 9 and the rolls 18, 19, 20 being faced to the surface 24, 25, 26. By using said device, and when while feeding the article 11 in a fixed direction, the piston rods 51 are depressed downward by introducing a pressure-adjusted hydraulic fluid into the hydraulic cylinders 39, 40, 41 and the films 15, 16, 17 are pressed against the surfaces 12, 13, 14 to be printed of the article 11 by the rolls 18, 19, 20 under heating to adhere the films to the surfaces.

Transferring method for brilliant metallic letter or pattern on glass surface

Abstract: PURPOSE:To enable reliable transferring of a brilliant metallic pattern having an excellent close adhesiveness on an arbitrary glass surface, by a method wherein, after an under coat is formed with paint, having an affinity with glass, in the glass surface, a hot stamping and a stamping are performed. CONSTITUTION:After a glass surface is cleansed, paint, whose main component is synthetic resin such as epoxy resin having a better affinity and close adhesiveness with glass, is applied on the glass surface to form an under coat layer. After the under coat layer is preliminarily dried to be brought into a half- couring condition having a substantially no adhesiveness, the under coat layer is caused to touch a hot stamping foil, and a brilliant metallic transfer is performed by pressurizing the foil by means of a heating elastic substance wherein a desired stamping is performed. The under coat layer is then perfectly dried by heating to monolithically adhere the glass surface, the under coat layer, and a transfered part. An over coat layer is formed where neccessary.

Preparation of japanese cracker with letter and pattern

Abstract: PURPOSE:To stamp (emboss) letters and patterns on a sheet dough and transfer a color changing solution capable of changing the color by heat to the sheet dough, by applying the color changing solution to a stamping (embossing) roll with stamping (embossing) dies, and passing the sheet dought through the stamping (embossing) dies. CONSTITUTION:A sheet dough 3 is passed through a stamping (embossing) roll 1 and supporting roll 1''. The surface of the stamping (embossing) roll 1 is provided with protruded stamping (embossing) dies 1' for stamping letters and patterns, and a color changing solution 8 capable of changing color by heat, e.g. molasses or equeous thick malt sirup, fed into a hopper 7 is applied to the surface of the stamping (embossing) roll 1 by a coating roll 6. Letters or patterns are stamped (embossed) on the sheet dough 3, and the color changing solution 8 is applied to the surface thereof. The sheet dough 3 is then patterned by a pattern roll 2, dried, baked and finished.

Automatic sheet taking-out and arranging system

Abstract: PURPOSE:To enable to take out various size sheets in the system stamping at the position of working origin and receiving to the magazine at the ejecting position by receiving the sheet, falling when the table returning to the origin passes through the hooker, through a receiving plate. CONSTITUTION:The name plate 8A from the material feeding portion 6 is fed to the material feeding magazine 7, and is automatically fed from the magazine 7 one by one to the NC table 2, and all the name plates including different size one are clamped respectively by locating the right upper corner to the material feeding origin O1 and the table 2 is moved to the X-direction, Y-direction, and X-direction and the plural lines of stamping is conducted. Then, the table 2 is driven to X, Y direction and located to the position where the origin O1 coincides with the taking out origin O2, then the hooker 9 descends to face the right end of the name plate 8A and engages with the name plate 8A in the process to return to the working origin (a), and is received surely in row into the magazine 4 through the receiving plate 5 having the functions of shock absorbing and aligning.