Sheet tape-threading and locating and punching device and method

Abstract

The invention provides a steel tape-threading and locating and punching device and method. The steel tape-threading and locating and punching device comprises a stamping rod, a punching chisel, and a puncher of a locator, wherein the locator comprises a base with a chisel hole and a slot, a location rotating plate with a location hole, and a pointer. A strip steel jacket arranged in the slot and provided with round steel is pressed by using a stamping die, wherein the end parts of the strip steel jacket are doubly folded, the point is aligned to a scale datum line, the punching chisel, an incline of a chisel head of which is inwards inserted in the location hole, is subjected to hammering and punching, and stamped steel reserved with a 1 / 3 connecting part is backwards coiled so that the stamped steel forms a smooth transition on the inner side of a tape-threading hole. The invention has the advantages that a space between the round steel in the steel jacket and a tape-threading rope is reasonable, the tape-threading hole is accurate in location and is uniform in stress, thus the strip steel is avoided being again torn, the defect of breaking the tape-threading rope is eliminated, and the service life of the tape-threading rope is prolonged. The steel tape-threading and locating and punching device is simple and practical, saves labor and time during punching, and has less investment and high effect taking speed because the punching device can be automatically processed and manufactured.

Description

technical field

[0001] The invention belongs to the field of steel rolling aids, in particular to a positioning punching device and a positioning punching method for punching strip holes in cold-rolled thin plates. Background technique

[0002] When the cold-rolled thin plate is threaded in the continuous annealing unit, in order to connect with the threading rope, the head of the strip needs to be punched out of the rope hole, so that the transmission device can pull the threading rope for leading operation.

[0003] At present, the domestic conventional method of making the belt rope hole is to fold the strip steel in half first, put a reinforced round steel in the steel sleeve, and then use a flat chisel or screw rod to punch out a square or circular shape on the edge of the strip steel. rope hole. However, the rope holes made by this method are often irregular in shape, and most of the inner walls of the rope holes have sharp corners and burrs, which lead to the threadi...

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