RU171266U1 - A device for the dissolution of tape rolling on superazy, longitudinally profiled, measured along the length of the segments - Google Patents

Abstract

The device for dissolving the rolled strip material into superalloy strips with longitudinal profiling of measured sections is based on the passage of the rolled sheet metal through several stands of the rolling mill. The first stand forms extruded grooves along the strip of rolled products using profiled rolls. Threaded ring profile. The step of the profile is equal to the width of the super-strong strip. The second stand with specially profiled rolls shifts the strips vertically by the calculated value, which only maintains a minimal mechanical connection between them. The third stand separates the strips, eliminating their vertical displacement relative to each other and forming a longitudinal profile, separates the strips into measured lengths. The third stand, depending on the complexity of the longitudinal profile of the tasks of forming different lengths of segments, can be intermediate. Such a scheme makes it possible to obtain superstrong stripes that are stable in width, which is practically unattainable when using circular shears.

Description

A device, such as a rolling mill, for dissolving rolled strip material into supersize, longitudinally profiled, measured along the length of the lengths refers to devices for providing technologies for the dissolution of rolled sheet metal and can be used to produce strips of any size in width from it, including ultra-narrow (the width of the strip may be equal to or slightly less than the thickness of the rental). The present device (Fig. 1) solves the problem of the dissolution of the rolled strip into super-strong strips (their width can be equal to or less than the thickness of the rolled strip), their cutting into measured sections along the length with the application of a longitudinal profile for each section and can be implemented by distributing the profiling process and separation into 3 stages, on 3 stands of the rolling mill. The first stand 1 with rolls deposited on their cylindrical part along the entire length of the threaded ring profile 4 extrudes longitudinal grooves 7 along the entire width of the dissolving strip 7, the dimensions between the axes (pitch) of which are equal to the dimensions along the width of the future super-heavy strips. The vertices of the triangular protrusions on the upper and lower rollers are directed strictly towards each other. The distance between the vertices is calculated so that the complete separation of the strips does not occur.

After stand 1, the strip enters stand 2, where the profile protrusions 5 of the rolling rolls of stand 2, the strips are displaced relative to each other (8) vertically with minimal mechanical connection between them.

After this, the strip enters the rolling stand 3, where the strips by forming-cutting rolls 6 are separated by eliminating their vertical displacement relative to each other with the formation of the necessary longitudinal profile and cutting it lengthwise into measuring segments 9, 10.

Thus, this device removes a number of significant drawbacks when dissolving a strip into superthin strips:

- there is no call of the cutting edges of the cutting elements for each other - this fundamentally solves the problem of "jamming" the edges of the separated strips;

- the quality of the edges of the strips increases significantly, because triangular elements of the rolling rolls of stand 1, a chamfer is applied to each of the four corners in the section of the strip to be separated;

- the cutting edge in the cutting elements of the second stand does not determine the tool life, because the cutting edge itself does not work in scissor mode, and the disc itself only exerts pressure on the strips longitudinally selected by the triangular elements of the first stand, shifting them relative to each other by the required amount (see Fig. 1, item 8), practically eliminating the contact of the cutting edge with the surface shared rolled strips. This makes it possible to predict longer operation of such a line without readjustment compared to lines and units, with cutting elements operating in the “scissors” mode, with the cutting edges entering one after another. In addition, receiving from the second stand a spreading strip separated by strips in the third stand, using profile 6 on the cylindrical surfaces of the rolls, having cutting edges with a pitch equal to the length of the measured profiled segment, we obtain dimensional segments that are stable in profile and length.

Claims (1)

A device for dissolving rolled sheet metal of a rolling mill into narrow longitudinally profiled and measured lengths of segments, characterized in that it is made in the form of three consecutive rolling stands, the first of which is made with a threaded ring profile deposited on their cylindrical part, providing along the original sheet rolled along the entire width, the formation of longitudinal strips by means of longitudinally extruded notches of a triangular shape with vertices opposite each other, rolls of the second glue and - with profile protrusions that provide vertical displacement of the formed strips relative to each other with minimal mechanical connection between them, and the next stand contains forming-cutting rolls made with the possibility of final separation of the strips with the elimination of their mutual vertical displacement in the second stand and forming the necessary profile and cutting it in length into measured segments.

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