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1942 results about "Stamping" patented technology

Stamping (also known as pressing) is the process of placing flat sheet metal in either blank or coil form into a stamping press where a tool and die surface forms the metal into a net shape. Stamping includes a variety of sheet-metal forming manufacturing processes, such as punching using a machine press or stamping press, blanking, embossing, bending, flanging, and coining. This could be a single stage operation where every stroke of the press produces the desired form on the sheet metal part, or could occur through a series of stages. The process is usually carried out on sheet metal, but can also be used on other materials, such as polystyrene. Progressive dies are commonly fed from a coil of steel, coil reel for unwinding of coil to a straightener to level the coil and then into a feeder which advances the material into the press and die at a predetermined feed length. Depending on part complexity, the number of stations in the die can be determined.

Hot stamping foil applied to overlapping hot stamping on gold stamping layer and preparation method of hot stamping foil

The invention discloses a hot stamping foil applied to overlapping hot stamping on a gold stamping layer and a preparation method of the hot stamping foil. When overlapping hot stamping is carried out on an existing hot stamping foil, the defects that the transferring is incomplete, the hot stamping is not carried out on some portions due to omission, scumming is caused, powder falls off, and the edge of a hot stamping layer is not clear can happen. The hot stamping foil is composed of a base membrane layer, a release layer, a color coating layer, a vacuum aluminum coated layer and a gumming layer. The gumming layer is prepared by raw materials which comprise, by weight, 1-6 parts of chloroethylene-vinyl acetate resin, 1-10 parts of polyvinyl alcohol, 1-10 parts of acrylic ester, 1-5 parts of nitrocellulose, 1-5 parts of fumed silica, 20-70 parts of ethyl acetate, 10-50 parts of ethyl alcohol and 1-5 parts of propyl acetate. According to the hot stamping foil applied to the overlapping hot stamping on the gold stamping layer, the hot stamping foil has the good stamping performance and the good trimming performance, the overlapping hot stamping layer is complete in transferring, the edge is smooth and free of burrs, the adhesion is firm, the phenomena of dusting, powder falling and the like do not exist, the hot stamping effect is strong in third dimension, and the anti-fake performance is more outstanding.
Owner:云南玉溪东魅包装材料有限公司

Metallic coin stamped with holographic anti-counterfeiting pattern and manufacturing method thereof

The invention relates to a laser holographic anti-counterfeiting stamping technology and particularly relates to a metallic coin stamped with a holographic anti-counterfeiting pattern and a manufacturing method thereof and provides the metallic coin which has a laser holographic anti-counterfeiting function and exquisite pattern and is stamped with the holographic anti-counterfeiting pattern and the manufacturing method of the metallic coin. The manufacturing method comprises the following steps of: duplicating a laser holographic image on a metallic nickel plate to form a metal nickel plate for die pressing; coating a release layer, an imaging layer, a die pressing layer, an aluminum plating layer and a dual-layer adhesive layer on a film belt of a base film; positioning, transferring and stamping a laser electrochemical aluminum stamping foil on the metallic coin; heating a stamping head to 80-90DEG C; meanwhile, preheating and improving the temperature of the original metallic coin to 90-100DEG C; and removing the film belt of the base film by the release layer to form the metallic coin with laser holographic pattern. The metallic coin generates a new visual color in the overlapped laser effect and is a novel metal coin anti-counterfeiting type; and in addition, the metallic coin has the advantages of accuracy in positioning, strong three-dimensional sense, abundant layers, simple and quick process, one-time transfer stamping, favorable reproducibility and no pollution.
Owner:HUBEI LHTC ANTI COUNTERFEITING TECH CO LTD

Automatic stamping equipment for accountancy

The invention relates to stamping equipment, in particular to automatic stamping equipment for accountancy. The purpose that the automatic stamping equipment for the accountancy can always conduct conveying stamping on files, does not need to be operated by people, and is convenient to operate and high in working efficiency is achieved. The automatic stamping equipment for the accountancy comprises a rack, a machine body is installed on one side of the rack, a containing box is slidably arranged on one side of the machine body, springs are connected to the inner side of the containing box, a friction plate is slidably arranged in the containing box, one side of the friction plate is fixedly connected with the tail ends of the springs, and a collecting box is installed on the side, far awayfrom the containing box, of the interior of the machine body. According to the automatic stamping equipment for the accountancy, the files are put into the containing box to make contact with a pickup roller, a motor is started to reversely rotate, then the pickup roller can drive the files to move to a conveyer belt, the conveyer belt rotates forwards to drive the files to move rightwards, a clamping sleeve drives a stamp to stamp the files, therefore, the working efficiency is high, operation is convenient, and manual operation is not needed.
Owner:陈曦

Method for manufacturing radio frequency tags with hot and cold stamping technology

The invention discloses a manufacturing method of radio frequency tags, and the radio frequency tags are manufactured with a hot and cold stamping technology; the process method has the steps that: polyvinyl chloride (PVC), polypropylene (PP), polyethylene terephthalate (PET), paper, plastics and the like are adopted as base materials, and electro-metal stamping foils are stamped on the base materials by a stamping machine through a hot stamping or cold stamping technology, then waste is discharged from other parts of the metal foils, and antenna patterns are obtained; and if coil antennas are to be manufactured, insulation layers need to be paved on coils, the electro-metal stamping foils are stamped on the insulation layers and are connected with the ends of the antennas to form bridges, i.e. radio frequency antennas. Finally, chips are reversely pasted on the antenna bridges, coated and packaged, and radio frequency tags are obtained. A traditional radio frequency tag process has the disadvantages of too high cost, complicated process, long production time, certain pollution to the environment and the like, and the method for manufacturing radio frequency tags with the hot and cold stamping technology can effectively reduce the radio frequency tag manufacturing cost, simplify the complicated process, and meet the market demand for the low-cost radio frequency tags.
Owner:哈尔滨大东方新材料科技股份有限公司

Large diameter-thick ratio and vertical distance ratio seal head rotary percussion forming device and rotary percussion method thereof

ActiveCN104275378AImprove the shortcomings of easy wrinkling and instabilityInhibition of deformation and instabilityRotary stageStamping
The invention relates to a large diameter-thick ratio and vertical distance ratio seal head rotary percussion forming device and a rotary percussion method thereof. The forming device comprises a machine tool gantry formed by stand columns and a top beam, a base, a cross beam, double rotary wheel carriers, a rotating platform, a cylinder-shaped mould, a ring-shaped pressure plate fixture, and the like, wherein the rotating platform is arranged on the base of a machine tool; the cylinder-shaped mould is arranged on the rotating platform; a workpiece to be processed is closely clamped on the cylinder-shaped mould, so that the workpiece and the mould can synchronously rotate along with the rotating platform; the two rotary wheel carriers are respectively arranged at the left side and right side of the cross beam, and each rotary wheel carrier is provided with a rotating wheel as a spinning tool; the vertical-direction feed and the horizontal-direction feed of the rotating wheel are realized by a stepping motor and a screw rod. The double-rotating wheel structure is adopted, so that the stress stability of the workpiece can be improved in the spinning forming process, and the influence of vibration to the machining process can be reduced. According to the spinning method, double rotating wheels are respectively used for feeding and extruding the workpiece so as to form the workpiece along the symmetrical arc shapes from the left side and right side of the periphery of the workpiece to the center. The device is simple, the stamping of a drum roller is avoided, is stable in forming process, and is capable of avoiding the phenomenon of instability in the forming process of a large diameter-thick ratio and vertical distance ratio seal head, thus realizing the whole precision shaping of the large diameter-thick ratio and vertical distance ratio seal head.
Owner:长沙超旋机械科技有限责任公司

Hot-pressing forming method for aluminum-alloy curved reinforcing rib plate

The invention discloses a hot-pressing forming method for an aluminum-alloy curved reinforcing rib plate. The method comprises the steps of 1, carrying out plane unfolding on the aluminum-alloy curved reinforcing rib plate; 2, preparing corresponding reinforcing ribs on the plate according to the positions of the reinforcing ribs in the plane unfolding diagram; 3, designing and processing a hot-pressing forming die of the aluminum-alloy curved reinforcing rib plate; 4, performing hot-pressing forming on the aluminum-alloy curved reinforcing rib plate; and 5, performing air inflation correction on the aluminum-alloy curved reinforcing rib plate. According to the method, the aluminum-alloy curved reinforcing rib plate is formed by adopting hot-pressing formation and air inflation correction combined technologies, the problem that the size precision and the profile precision of the parts are difficult to control in the conventional cold stamping or machining process is solved, the surface quality of the parts is improved, and the overweight problem in the casting process is avoided; firstly, hot-pressing forming is adopted so that resilience, wrinkling, cracking and other defects in the cold forming process can be effectively avoided; and then air inflation correction is adopted so that the size precision, the profile precision and the surface quality requirements of the parts can be guaranteed.
Owner:BEIJING HANGXING MACHINERY MFG CO LTD

High-speed precise numerical-control stamping machine mechanismstructure capable of realizing dynamic lower dead point precision compensation

The invention discloses a high-speed precise numerical-control stamping machine mechanismstructure capable of realizing dynamic lower dead point precision compensation. The high-speed precise numerical-control stamping machine mechanismstructure consists of a slider-crank mechanism, two push rods, two multi-rod mechanisms, two lower connecting rods and a stamping slider, wherein the slider-crank mechanism is arranged on a stamping machine body along the vertical direction, the vertical-movement stamping slider is arranged right belowunder the slider-crank mechanism, the two push rods, the two multi-rod mechanisms and the two lower connecting rods are respectively and symmetrically arranged at the two sides of the slider-crank mechanism, the slider-crank mechanism and the two multi-rod mechanisms are connected together by the two push rods, and the stamping slider and the two multi-rod mechanisms are connected together by the two lower connecting rods. According to the high-speed precise numerical-control stamping machine mechanismstructure capable of realizing the dynamic lower dead point precision compensation, the influence on horizontal-movement sliders, subjected to dynamic precision adjustment, caused by a stamping machining impact load is little, thereby being beneficial to the improvement of compensation precision and the prolongation of the service life of an adjustment system.
Owner:NANJING UNIV OF SCI & TECH

Novel automobile beam forming process and stamping die structure

The invention provides a novel automobile beam forming process and a stamping die structure. The stamping die structure comprises a material pressing core, a material pressing mechanism and a forming and side shaping mechanism. When the stamping die structure works, a workpiece is placed on the material pressing core, the material pressing mechanism makes contact with the workpiece firstly and then presses and fixes the workpiece, and then the forming and side shaping mechanism begins to make contact with the workpiece and works. The forming process includes a blanking procedure, a forming and side shaping procedure and a hole stamping and edge trimming procedure, wherein in the forming and side shaping procedure, wrinkling, cracking, unstability and surface quality of the workpiece are debugged, all profiles are shaped, and resilience of the side wall of the workpiece is controlled; in the hole stamping and edge trimming procedure, hole stamping and edge trimming are carried out on the workpiece. According to the stamping die structure, wrinkles of parts are reduced, resilience of the parts is effectively controlled, beam forming parts do not excessively rely on production equipment any longer, and the production mode that two workpieces can be produced through one die is achieved. By means of the process, an automobile beam can be formed through the three procedures, and production efficiency is improved. The process and the stamping die structure are suitable for production of the automobile beam parts.
Owner:SAIC-GM-WULING AUTOMOBILE CO LTD

Single-arm robot stamping and carrying apparatus

The invention discloses a single-arm robot stamping and carrying apparatus. The single-arm robot stamping and carrying apparatus comprise a machine table; a linear lifting platform is arranged in themiddle part of the machine table; a liftable robot carrying apparatus is arranged at one end, positioned on the linear lifting platform, of the machine table; an isolation paper placement plate and anisolation paper carrying apparatus for carrying isolation paper to a finished product placement plate one by one are arranged at the other end, positioned on the linear lifting platform, of the machine table; the finished product placement plate is positioned on the linear lifting platform; and the linear lifting platform is also provided with a supplied material plate structure with a compensating and lifting function. The single-arm robot stamping and carrying apparatus is mainly specific to flexible FPC board stamping and carrying. The apparatus is a four-axis robot with a liftable base; the Z axis of the robot is positioned on the base, so that the robot can walk in the narrow space of upper and lower modules of a punch conveniently; a suction cup is arranged at the tail end of the robot, and a product protection function is added at the suction cup adsorption position; the suction cup is rotatable, so that a secondary stamping function of the symmetrical products can be realizedconveniently; and the four-axis robot with the liftable base is mainly used for material carrying.
Owner:东莞市本润机器人科技股份有限公司

Self-service printing device capable of automatic stamping after printing

InactiveCN105751714AReprinting oil is convenientThe seal outline is clearTypewritersStampingStampingComputer printing
The invention discloses a self-service printing device capable of automatic stamping after printing, comprising an impact printer, a paper feeding device, a stamping device, a continuous stamp-pad ink supply device, and a cutting knife device. The stamping device comprises a stamping motor, a first installing plate, a second installing plate, a stamping synchronous pulley device, a stamp, a stamp-pad ink transfer printing cotton wheel, a stamp-pad ink cotton wheel, a pull bar and a stamping positioning switch. The continuous stamp-pad ink supply device comprises a stamp-pad ink warehouse, a stamp-pad ink warehouse fixing plate, a stamp-pad ink inlet pipe, a stamp oil pump, a stamp-pad ink outlet pipe, and a stamp-pad ink dropper. Multi-ply receipts are printed by the impact printer, cut by the cutting knife device into single receipts, and sent to the inferior of the stamping device through the paper feeding device; the continuous stamp-pad ink supply device supplies stamp-pad ink for the stamping device; the stamping device stamps printed single receipts and sends out stamped single receipts through the paper feeding device. The self-service printing device has the function of continuous stamp-pad ink supply, and the characteristics of convenient stamp-pad ink supply and clear stamping outline, and can perform prompting when printing paper runs out, and when stamp-pad ink lacks.
Owner:徐明

Cold and hot combined stamping forming device for aluminum alloy plate and stamping method thereof

ActiveCN111496050AGood formabilityImprove stamping forming pass rateShaping toolsStampingUltimate tensile strength
The invention discloses a cold and hot combined stamping forming device for an aluminum alloy plate. The device comprises a pre-forming mechanism and a finish-forming mechanism, wherein the pre-forming mechanism comprises a first stamping convex die, a first stamping concave die, a first blank holder and a cooling mechanism; an elastic heat-insulating support is arranged on the first stamping concave die; and the finish-forming mechanism comprises a second stamping convex die, a second stamping concave die, a second blank holder and a cooling mechanism. Meanwhile, a corresponding stamping method is further provided. Through the stamping forming device and the stamping method, aluminum alloy forming performance is improved, the problems of forming fracturing, rebounding and the like under room temperature are solved, and the stamping forming percent of pass of the aluminum alloy plate is increased; moreover, aging strengthening and deformation strengthening can be introduced simultaneously in the stamping forming process, so that the effect of strengthening deformation and aging is achieved, then cold deformation of different allowances are designed on different parts or different portions of the same part to be combined with subsequent artificial aging, and consequently the overall strength of the parts or the strength of the different portions of the parts is changed; and besides, forming precision can be improved.
Owner:WUHAN UNIV OF TECH
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