A cross-rolling pipe mill inlet platform

Abstract

The invention provides an oblique pipe rolling mill inlet platform which comprises a rack, a plurality of first lifting mechanisms, a plurality of second lifting mechanisms, a plurality of sets of supporting mechanisms, a plurality of sets of compression roller mechanisms and conveying mechanisms. The rack comprises a base arranged along the rolling center line. The first lifting mechanisms are arranged on the base in a lifting mode. The second lifting mechanisms are arranged on the base in a lifting mode. The supporting mechanisms comprise rotating supporting rollers and first driving parts, the rotating supporting rollers are arranged on the first lifting mechanisms and driven by the first driving parts to rotate, and the rotating axes of the rotating supporting rollers are parallel to the rolling center line. The compression roller mechanisms comprise oscillating rods and compression rollers, one end of each oscillating rod is hinged to the base, and the other end of each oscillating rod is connected with the corresponding compression roller, so that the compression rollers are arranged above the rotating supporting rollers in an oscillating mode. The conveying mechanisms comprise second driving parts and conveying rollers, the conveying rollers are arranged on the second lifting mechanisms and driven by the second driving parts to rotate, and the rotating axes of the conveying rollers are perpendicular to the rolling center line.

Description

technical field [0001] The invention belongs to steel rolling machinery, in particular to an inlet platform used at the inlet of a skew rolling mill for producing seamless steel pipes. Background technique [0002] In the production of seamless steel pipes, there needs to be a device at the entrance of the skew rolling mill to hold the rotating mandrel and capillary to stabilize the rolling process, and this device can send the capillary into the rolled tube after the mandrel penetrates into the capillary Machine, this kind of special mechanical equipment is called the import station of skew rolling tube mill. [0003] Most of the current import stations of skew rolling mills use transport rollers to send capillary tubes into the rolling mill. This method is only suitable for the production of small-diameter steel pipes. For the production of large-diameter steel pipes, the force to send them into the rolling mill is not enough. Therefore, Need to set up a kind of push-in d...

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Problems solved by technology

[0005] But above-mentioned existing cross-rolling pipe mill entrance platform has the following defects: 1. The split-type core-holding device plus the pipe pushing trolley that can pass through the middle, the whole equipment occupies a very large area, which increases the production cost; 2. Due to The core-holding device can only hold the capillary, and its own roller has no drive and cannot rotate with the capillary. Therefore, the overall motion state of the capillary is inconsistent during the rolling process. For capillary with large diameter and heavy weight, it is easy to appear The phenomenon of tail flicking affects the rolling action and brings operational danger. Therefore, the existing cross-rolling mill inlet platform cannot be used for the production of large-diameter seamless steel pipes; can't be big

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