Showing papers on "Stamping published in 1979"

Process for shaping thermoplastic articles

Abstract: A discrete thermoplastic composition is formed into a shaped article in a rapid stamping process. The composition is placed on and preheated with a rigid metal plate which has been preshaped to fit the contour of one of the dies of the stamping press. The heated composition and metal plate are then transferred to the stamping press where the composition is stamped and cooled into a three-dimensional shaped object. The surface of the metal plate contacting the composition has a special finish so that desired surface effects can be produced on the stamped article.

Bolt mechanism and method of making same

Abstract: A flush bolt is disclosed which is adapted for flush mounting on a door The flush bolt is composed of a latch sled and faceplate Both the latch sled and faceplate may be constructed by stamping sheet metal The latch sled is slidably mounted on the faceplate by way of integral longitudinal channels which engage tracks which are an integral part of the faceplate Both tracks and channels are formed during the stamping process An actuator arm slidably operates the latch sled between engaged and disengaged positions A biasing spring is provided for biasing the actuator arm to either the engaged or disengaged position A forked tongue having a slot for guiding the biasing spring extends upwardly from the latch sled and is also formed during the stamping process The slot which is formed during the stamping of the forked tongue is notched to provide securing of the housing spring The tracks on the faceplate and housing on the latch sled are formed from material displaced from openings formed to receive the actuator arm

Alignment system for offset printing presses

Abstract: An alignment system for the positioning of printing plates on offset printing presses which have an axially extending fastening channel. The system includes of a stamping machine for the punching out of register holes in the printing plate and the related plate masks, a pre-mount table, a bending device for the printing plate and a blocking piece in the fastening channel.

Stamping in liquid female tool

Abstract: The present invention provides an improved method for hydro-mechanical stamping wherein hollow products are formed from flat blanks by the cooperation of a punch and a liquid female tool. The present method particularly provides for submerging in the liquid the blank which is to be stamped, the level of the liquid being also maintained above the usual stamping ring. The invention further provides apparatus which acts to center the blank relative to the stamping ring, the present apparatus comprising an additional ring rigidly connected to the stamping ring and having radial apertures therein which form portions of circuitous liquid paths through which liquid flows on stamping, the paths acting to prevent localized rupture during stamping. The present method and apparatus find particular application to the high-speed manufacture of hollow, thin-walled articles of non-cylindrical shape.

Deflection device for safety belts

Abstract: Deflection device for a safety belt which, at one end region, is rolled up in an automatic wind-up device, and is provided at the other end with a lock. An in-between-portion of the belt is routed over a fixed rounded deflection bar. The part of the device which serves for securing it, and the deflection crossbar which has rounded bends at least in the region of the deflection crossbar is formed by a metal stamping.

Torque transmitting fluid couplings

Abstract: Torque transmitting fluid couplings of two types are described, one a thermatically controlled coupling and the other a torque limiting coupling. Both are characterized by the use of parts which can be manufactured at low cost and easily and quickly assembled, and contribute to greater efficiency in operation than fluid couplings of these types which have heretofore been marketed. Both utilize a housing or casing which is die-cast complete and finish bored, a drive shaft and coupling flange made of two separate pieces, which are welded together, ball bearing mounts, a cover or cover member made as a metal stamping, and a drive disc which is die-cast, in a single piece, to provide a friction ring and friction segments molded integrally therewith. In the thermatically-controlled type, the cover is part of a cover assembly, which comprises a bracket for supporting a bimetal strip, a steel guide bushing riveted to the cover and in which a piston or pin is adapted to be slidably mounted, and a rubber piston seal for preventing leakage of fluid through the cover. The thermatically-controlled type also includes a plate and spring assembly, comprising a divider plate made as a steel stamping and a spring made of spring steel and supporting a weir made of a graphite-filled material.

Disc for a disc brake,in particular for a vehicle brake

Abstract: A disc for a disc brake has a support (15) to which friction rings (16 and 17) are fixed by means of rivets (18). The support (15) and the friction rings (16, 17) are made by precision stamping. Fixing pins (23, 24) which fit into fixing holes (32, 33) are provided for centering the rings (16, 17) on the support. The pins (23, 24) are formed from the material of the support (15) by stamping. It is possible to arrange fixing pins and holes on the support as well as on the friction discs. Upon the precision stamping of the support, aeration channels (19, 20) may be provided by deformation of the material. Owing to the precision stamping, the friction rings are centered in a sufficiently precise manner so that, after assembly, it is not necessary to recenter them.

Metal cornerboard for pallets

Abstract: An improved cornerboard for a pallet is provided wherein the main portion consists of two L-shaped metal sections with complementary tongues and slots so that the cornerboard height can be readily adjusted The cornerboard is easily fabricated from steel sheet sections utilizing conventional bending, stamping and welding techniques

High strength low carbon sheet steel by thermomechanical treatment: l. Strengthening mechanisms

Abstract: Considerable attention has been focused recently on the development of higher strength automobile stampings. Traditionally increasing the strength of a stamping has been accomplished by utilizing a higher strength material with its attendant problems in springback, die wear and press loads. An alternative approach to high strength stampings based on thermomechanical (TMT) processing of a low carbon steel is described. With this approach, the contributions to strength due to work hardening during stamping and age hardening after stamping are incorporated into the overall processing scheme. The TMT process consists of heating a low carbon steel to the two phase(α + γ) region and quenching to produce a dispersion of martensite in a ferrite matrix. A second, low temperature heat treatment is then employed to improve the total elongation to acceptable levels. The processed steel is then stamped and subsequently aged at either ambient or elevated temperature to develop final strength. The relative contributions of the individual operations of the TMT process to final strength are discussed and the required heat treatment parameters are evaluated in terms of the operative strengthening mechanisms.

Metallized hot stamping foil for decorating three-dimensional objects

Abstract: The invention concerns metallized hot stamping foils for decorating three-dimensional objects. In order to achieve a decoration of the object with the hot stamping foil which is free from cracks in the applied stamping film there is proposed a foil comprising a thermoadhesive layer, a first lacquer layer, a metal layer, a second lacquer layer, a release layer and a carrier layer laminated in this order, wherein a laminate of the first lacquer layer, metal layer and second lacquer layer has a ductility represented by an elongation rate ranging from 1.5 to 4.0, the elongation rate being the ratio of length after elongation to length before elongation. The first lacquer layer may have thermoadhesive properties which allows dispensing a separate thermoadhesive layer.

Method and an apparatus for cambering the edges of webs of thermoplastic materials on one and both sides using the energy of ultrasonic vibration

Abstract: The invention relates to an apparatus and a method for cambering the edge of webs of thermoplastic materials on one or both sides wherein the edges of the web are continuously guided through stamping units and the edges are provided with stampings. The thermoplastic cambering is made by utilizing the energy of ultrasonic vibration. The stamping unit consists of a stamping wheel with pressure apparatus for the wheel and a stationary ultrasonic head arranged beneath it with a sonotrode. A calibration apparatus can be arranged downstream of the stamping unit.

Method and apparatus for the continuous production of candies from a strand of confection

Abstract: The invention relates to an apparatus for the continuous forming of high density, seamless candies from a strand of confectionary material provided with a viscous filling. Candy blanks are first cut from an incoming soft strand and then pressed into candy pieces of the desired shape. The apparatus includes cooperative complementally formed pairs of separating teeth as well as pairs of members for shaping the candy and stamping chambers arranged in a rotating rotor.

Stamping press for sheet metal blanks - with separate exit conveyors for stampings and blank remnants

Abstract: The parent patent describes a conveyor carrying sheet meta blanks through a stamping press. On a pair of rails are two rows of gripper tongs which move inwards to grip the blanks, forwards, outwards to release the blank, and backwards to repeat this cycle. The improvement is that the stamped work piece adhering to the upper stamping punch is ejected onto a second pair of upper gripper tongs moving the workpiece to an overhead magnetic conveyor belt feeding the workpieces to a stacker. The mechanical handling of the stamped workpieces and the blank remnants or scrap obtd. during the stamping operation is simplified.

Method for embossing thermoplastic films

Abstract: Die Pragung von Folien aus thermoplastischen Kunststoffen, insbesondere die beidseitige Pragung, mittels eines Pragewalzenpaares wird nach diesem Verfahren so durchgefuhrt, das die Pragewalze (4,9) auf einer Temperatur gehalten wird, die im plastischen Temperaturbereich des thermoplastischen Kunststoffs liegt, die zugefuhrte Folie (1) eine Temperatur im Temperaturbereich zwischen der Glastemperatur des Thermoplasten und eine bis zu etwa 70°C daruberliegende Temperatur aufweist, und das die zugefuhrte Folie eine Geschwindigkeit von 5 bis 200 m/min besitzt und einem Pragedruck von 100 bis 500 N / cm ausgesetzt wird. The embossing of films from thermoplastic materials, in particular the double-sided embossing, by means of an embossing roller pair is performed by this method, that the embossing roller (4,9) is maintained at a temperature which is in the plastic temperature range of the thermoplastic, the applied film ( 1) a temperature in the temperature range between the glass transition temperature of the thermoplastic material and up to about 70 ° C having overlying temperature, and that the fed sheet has a speed of 5 to 200 m / min and subjected to an embossing pressure of 100 to 500 N / cm , Durch dieses Verfahren wird verhindert, das beim beidseitigen Pragen die zuerst aufgebrachte Pragung durch den zweiten Pragevorgang in unerwunschter Weise verandert wird. By this method it is prevented that the first applied embossing is changed by the second embossing operation in an undesirable manner at the two-sided embossing. Die Pragefolien konnen verwendet werden als Dekorations-, Mobel-oder Schreibfolien. The stamping foils can be used as decoration, furniture or write films.

Process for making a container cover member having synthetic resin openable portion

Abstract: The process for producing a container cover member by stamping a sheet of material stock to form a plurality of through bores, injection molding a closure member in each through bore and subjecting each through bore to a second stamping to form a handle in a portion of the closure member.

Machine tool for stamping and grooving

Abstract: A machine tool for stamping and grooving paperboard for forming folding blanks which includes a die plate of fiber-reinforced, hard paper provided with marginal edges, ribs and grooves formed by means of program-controlled tools and having alignment openings for receiving alignment pins, the die plate being adhesively secured to one of the machine stamping plates.

Press control for stamping steel strip - has pneumatic nozzles to ensure correct positioning of strips fed singly

Abstract: Heavy gauge steel strip is supplied in straight lengths, fed into stamping presses one at a time To ensure that the strip is correctly in position before stamping the required article, the strip (S) passes between two air nozzles (25) and interrupts the air flow This interruption of the air flow actuates a pneumatic control system which allows the press to be started The device also stops the press before the nd edge of the strip (2) reaches the punch (4) so that there is no danger of there being insufficient material to stamp out a complete part

Stamping tool for cutting cardboard carton sheets - has right angled joint between cutting edges to avoid overhang of brittle edge

Abstract: A stamping tool, for stamping sheets of cardboard into shapes for making cartons is formed from two strips (1, 2) joined together at right angles. Each strip has a V-shaped cutting edge. In order to assemble the two strips, one strip (1) has a parallel slot(1a) with a depth equal to half the strip thickness and width equal to the thickness of the other strip(2). With this joint there is no overhanging portion of the hardened and brittle edge of the blade, which can be easily broken, as is the case with existing types of joints.

Marking head for cold stamping symbols on a metallic surface

Abstract: A marking head for cold stamping letters, numbers or other symbols provided on free ends of a plurality of stamps on a metallic surface. The stamps of the marking head are operated by explosion of a cartridge in a striking tool connected to the marking head to thereby move a piston of the tool, and a force transmitting member is arranged in the marking head to transmit the blow imparted to the piston onto the stamps.

Carrier bag making machine - has clamping and welding station followed by folding station and stamping station with cutting tools

Abstract: The carrier bag making machine produces, folds and stacks bags with two loops at the mouth edges. These are parted off from flattened plastics hose and form a rectangular double strip when flat, extending as far as the loops which protrude in the lengthwise direction, and have base and loop weld seams. A clamping and welding station (10) also parts the bags off, having welding tools for the base and loop seams, while a stamping station (12) has tools (13) punching out the mouth opening and loops. A folding station (14) folds the double strip about a transverse axis, and is situated between the welding and stamping stations.

Coating of steel

Abstract: A process for coating steel with a non-dripping pickle oil is disclosed. The coating process uses a heated hydrocarbon oil containing a long-chain linear alcohol as the coating medium. The alcohol converts the hydrocarbon oil into a meso-solid at ambient temperatures. The coating provides corrosion protection for the steel during storage and shipping. The process is also applicable for converting slushing oils and oils for drawing and stamping of metal into meso-solid coatings.

Shaped block press plate - comprises rolled steel strip with precision cutting edge

Abstract: The press plate is for use in a press forming shaped blocks partic. of concrete, and has a peripheral face at right angles to the plate face. It is formed by one or more layers of rolled steel strip (1), while the peripheral surface (3) comprises a precision stamping cutting edge. It can be of high-grade or cemented steel, e.g. C45 or C15, while the peripheral area is induction-hardened, carbonised or cemented. The edge can be bent at an obtuse angle, typically including one of 30 deg. with the plane formed by the remainder of the plate. The plate can be of solid metal, e.g. 10mm thick, or comprise a number of similar plates riveted together.

Surface processing of injection molded article

Abstract: PURPOSE:To transfer uneven patterns on the mold to an article via a stamping foil and to produce any complicated pattern very simply, by injection molding a synthetic resin into a cavity with the uneven patterns to which the foil is attached CONSTITUTION:Uneven patterns 3 are formed on the inner surface of the female mold 1 by engraving, stamping or etching, and the stamping foil 5 made of a metallic foil is fitted into the inner surface of the mold 1 A synthetic resin is injected from the inlet 6 into the cavity between the male and female molds 2 and 1, and compression molded to form given metallic patterns on the surface of the injection- molded article 7 transferred from the female mold 1 through the stamping foil 5 EFFECT:Complicated solid patterns can be transferred very easily from the female mold with a sharply reduced cost of surface processing of the injection molded article

Stamping and printing mechanism of automatic ticket examining apparatus

Abstract: PURPOSE:To provide an apparatus capable of using various kinds of ticket paper by performing stamping according to the kinds of ticket paper.

Motor vehicles pressings mfr. from continuous strip - involves several pressing operations before transverse shearing

Abstract: Metal pressings for the automobile industry are made from a continuous strip (1) which is fed from the coil (2). The strip (1) passes through a guiding device (3) and then through various stamping and piercing presses (7, 8) before being cut to the required length by the shearing press (6). The sheared and partly formed pressings are then placed in stacks (4) ready for the next operation such as deep drawing. By performing as many operations as possible whilst keeping the strip in one continuous piece the need for special transport devies between these operations is eliminated.

Impact damper for stamping presses - has elastically compressible stack of non-metallic thin plates on tool bottom section

Abstract: The impact damper is for stamping presses which have a tool top section and bottom section and a holder for the material to be machined, which lies on the bottom section. On the tool bottom section there is an elastically compressible stack of non-metallic, thin plates, especially of paper or plastic. In the output position, the top side of the stack projects beyond the surface of the material which lies on the tool bottom section. There can be one central plate stack or several of them distributed over the surface of the tool bottom section.