Longitudinal double-row automatic transfer method for fixed length steel in bar production

Abstract

The invention relates to a method for automatic transferring sizing steel through longitudinal double row in steel bar production, belonging to pressure processing field. The technical projection is as that: it employs steel bar producing line as transferring device and photoelectric switch as checking signal sensor; the second pair of butting damper is installed to form butting base level with the first butting damper; the lower of butting roll passage is equipped with transferring vehicle; the photoelectric switch is used to check out the head signal of sizing steel in the first row and endsignal of sizing steel in the second row, the transferring vehicle transfers said steel to butting roll passage through time-delay and transfers sizing steel to transportation chain bed. The invention can transfer sizing steel of two rows simultaneously, which increases production rate by about 78.5% and avoids problems in roll speeding and overload cold shearing. The method is characterized by easy accomplishment and low cost.

Description

technical field [0001] The invention relates to a rolling and conveying method for metal rods, which belongs to the technical field of pressure processing. Background technique [0002] At present, the cut-to-length steel after cold shearing in the finishing area of ​​the bar production line in the rolling mill must be transferred from the cold shear exit roller table (straight roller table) of the rolling line to the head-to-head roller table through an automatic transfer process, and then transferred after the head-to-head operation to transport chain beds. The purpose of the head-to-head operation is to align one end of each bar so as to lay a good foundation for bundling and counting. There are generally three kinds of automatic transfer technology, one is single-row transfer technology, the other is A and B area alternate transfer technology, and the third is one front and one rear vertical double-row fixed-length steel reverse automatic transfer technology. However, ...

AI Technical Summary

Problems solved by technology

However, in the situation of increasing production capacity and yearly cost reduction requirements, the above three processes have problems of restricting the improvement of production efficiency, difficulty in reducing equipment maintenance costs and waste of human resources.

The first single-row transfer process has obvious constraints on the output of steel varieties below 6 meters. Under the shortest transfer trolley cycle, the output of 6-meter steel varieties is about 40% lower than that of 12-meter steel varieties.

Moreover, due to the impact on mechanical equipment caused by cold-shearing high-speed steel cutting and the high-speed operation of the transfer trolley, mechanical equipment accidents occur frequently, and equipment maintenance costs remain high.

The second alternate transfer process between areas A and B, although there is no restriction on the output, but two sets of equipment need to be invested repeatedly in areas A and B, which will undoubtedly increase the cost of equipment maintenance and human resources

The third one-front and one-back vertical double-row fixed-length steel reverse alignment automatic transfer process overcomes the shortcomings of the first two processes, but two sets of reverse alignment control equipment are required for the two-row fixed-length steel alignment process , still increased equipment investment and maintenance costs

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