A circulating guide plate device for the ball forming mechanism of a bar rolling machine

Abstract

A circular guide plate device of a ball forming mechanism of a bar ball rolling machine comprises an upper guide plate, a lower guide plate, and is mounted between two rollers of the ball rolling machine. The upper guide plate and the lower guide plate are respectively composed of an inner guide rail, an outer guide rail, an outer guide rail cut block, guide bars, a guide plate support and balls. The inner guide rails and the outer guide rails are connected with the outer guide rail cut blocks through bolts. The balls are mounted at the lower ends of the guide bars, and the balls on the lower portions of the guide bars are matched with the outer rail bodies of the inner guide rails. The balls on the upper portions of the guide bars are matched with inner rail bodies of the outer guide rails. The guide bars are distributed between the inner rail bodies and the outer rail bodies and make circular movement under driving of roller curve faces. The upper guide plate and the lower guide plate are connected with a machine frame through adjusting bolts, and the distance between the guide plates and a rolling piece can be adjusted by rotating the adjusting screw rods. According to the circular guide plate device of the ball forming mechanism of the bar ball rolling machine, the gap in the upper guide plate, the lower guide plate and the rolling piece can be adjusted quickly, the guide bars make circular movement along with the rollers, continuous rolling is achieved, and the working efficiency of the bar ball rolling machine is improved.

Description

Technical field [0001] The invention belongs to the technical field of bar rolling mills, and particularly relates to a circulating guide plate device of a ball forming mechanism of a bar rolling mill. Background technique [0002] The bar rolling mill, that is, the spiral groove cross rolling mill, generally consists of a pair of rolls, a pair of guide plates, two sets of bearing seats, and an axial adjustment device, a radial adjustment device, an inclination adjustment device and a frame. Its working principle is: two rolls with spiral grooves, their axis lines cross each other, the two rolls rotate in the same direction, the bar enters from the entrance end of the ball mill, and the bar rotates and advances under the action of the rolls. , It becomes a ball when it moves to the other end. [0003] The guide plate is one of the important tools in the skew rolling forming process. It forms a space for the deformation of the rolling piece together with the roll pass. The function...

AI Technical Summary

Problems solved by technology

The first type is the ordinary long plate. In order not to interfere, the part in contact with the rolled piece is often relatively narrow, which is easy to scratch the rolled piece. When rolling small balls, due to the limitation of the gap between the rolls, the guide plate will always be in contact with the roll. Interference occurs, this method cannot complete normal rolling; the second method is improved on the basis of the first one, and many grooves are opened for the long plate according to the curved surface of the roll, and the position of the groove is at the convex edge of the roll. There will be interference, the length of the guide plate is fixed, and the machine must be stopped to change the position of the guide plate after rolling a bar, and continuous rolling cannot be realized

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