42 results about "Shear mouth" patented technology

The invention discloses a method for processing the back of business suit of men. The method comprises the following steps: (1) flattening the back piece of the business suit on an ironing table, and aligning with the mark on the ironing table; (2) fixing suture positions of upper shoulder points and a waist shear mouth on the ironing table by using pins; (3) flatly pulling the back piece inwardsby about 0.8-1 CM from armholes, and retracting the back central seam amount by ironing; (4) continuing to pull the back piece by 1.5-2 CM, retracting the excess back central seam amount in ironing (the operational method is the same: since the retracting amount is large and one operation can not achieve the effect, so the retracting is completed in twice); (5) aligning the back central retracting liner with the sutures, and sticking the sutures; (6) since the outer camber part of the central retracting liner has the allowance of 0.5-0.8 CM, flatly and uniformly retracting by ironing from thesutures; (7) pulling out the pins, and inversely ironing the other side; (8) straightening the back sutures; (9) attaching a 2.5 CM liner tag to the central retracting liner, wherein the liner tag passes the suture by 0.2-0.5 CM, and the lower end passes through the central retracting liner by 2-3 CM; (10) inversely ironing the other side by using the same method as in steps 8 and 9; (11) flattening the back piece, straightening the back central seam, and respectively ironing the back central seam on the upper part of the waistline; (12) attaching the 2.5 CM liner tag on the seam margin, wherein the liner tag passes the central retracting liner; and (13) putting the back piece on the ironing table, and ironing the respectively ironed back central seams. The invention provides suitable amount for bladebones and is suitable for human body curves, thereby being comfortable for people to wear.

The invention relates to a forming die for square pipe end part closing-in of a diagonal bar. The forming die is used for closing-in forming of the end part of a square pipe of the diagonal bar. The forming die comprises a lower punching and shearing die and an upper punching and shearing die, wherein the lower punching and shearing die comprises a cutter, the cutter comprises a body and a cutting edge which is protruded out of and is arranged on the top surface of the body, the cutting edge is arranged in the center of the top surface of the body, the cutting edge comprises a V-shaped cutting edge and two arc-shaped cutting edges, and the two arc-shaped cutting edges are connected with the V-shaped cutting edge and are respectively arranged on the two sides of the bottom of the V-shaped cutting edge; the upper punching and shearing die comprises a punching head and a punching and shearing mouth which is matched with the shape of the cutting edge; during manufacturing, the cutter stretches into the end part of the square pipe of the diagonal bar to be manufactured, and the lower punching and shearing die and the upper punching and shearing die are mutually matched to respectively form notch parts on a first side wall and a second side wall of the end part of the square pipe of the diagonal bar. The invention additionally provides a forming method for the square pipe end part closing-in of the diagonal bar by using the forming die.

The invention relates to a sheet taking / feeding and arranging device of an automatic sheet paver of a bulletproof helmet. A sheet taking / feeding device comprises a small sheet taking / feeding device and a large sheet taking / feeding device; an arranging means is arranged at the lower end of the large sheet taking / feeding device; and a cloth folding and gathering device is arranged on the large sheet taking / feeding device. Large and small sheets are sucked in sequence through large and small sheet suckers by vacuum, so that the stability and the reliability are achieved; the cloth folding and gathering device enables all large sheets to be accurately gathered into fixed shapes through pull wires when being moved rightly above a lower mold body, so that the accuracy and the reliability are achieved; the arranging means guarantees the consistency of upper and lower positions of the gathered sheets at adjacent two sides of all shearing mouths, and reduces the frictional resistance of an overlapped area to enable the mouth-shorn sheets to be overlapped more quickly and more accurately; and the sheet taking / feeding and arranging device is used for performing the bulletproof helmet sheet paving operation, so that the sheet paving quality is high, the operation is convenient, and the working efficiency is largely improved.