Apparatus for moving a cam rotating of a matrix for forming a negative angle, and the matrix.

摘要

"Apparatus for moving a rotary cam, a matrix for forming a negative angle, and the matrix.The present invention has for object to simplify a matrix for forming a negative angle as much as possible, thereby reducing its price.And at the same time, aims to improve the accuracy, thus making it possible to manufacture a product molded in the sheet metal laminate of high quality.The present invention provides a device for movement of a rotary cam to a matrix for forming a negative angle comprising a lower half of the matrix presenting a play D.And support for placing a work piece of sheet metal.And an upper half of the matrix to be downloaded directly downward on a lower half of the matrix for shaping the workpiece.A piece of molding molded in the bottom half of the intrusion matrix in a part of edge next to the carrier part on the inner side of a line of blow down of the upper half of the matrix.A rotary cam is so arranged that allows the cute in a lower half of the matrix.A slide cam including a piece of molding of intrusion and opposite to the rotary cam so that allows the slide and a lower half automatic retractor arranged in a matrix pairTo rotate the rotary cam back to a certain position, so that a workpiece is drawn from the lower half of the matrix after a molding operation.The work piece placed in the carrier part of the lower half of the matrix molded by the molding piece of intrusion of the rotary cam and the piece of moulding of intrusion of the cam deslizamentThe cam and the sliding molds the work piece by means of sliding.The automatic retractor rotates around the cam rotating after the molding operation to enable the work piece to be pulled from the lower half of the matrix.Where the flange is molded in a part of the edge of the work piece in one direction about an axis of rotation, the workpiece is then subjected to a molding of intrusion.And the flange part of the end of the workpiece be protected from damage caused by the retraction of the rotary cam.By dividing the rotary cam in a cam rotating end to place the flange molded in the tip part of the workpiece and the main rotary cam on the other side.The cams are both arranged in a same axis rotary divided flow, without the cam, rotating end is rotated during a period of initial retraction of previously determined.And from then on the cam rotating end axially in the direction of the rotary cam driven main.