JPH05309408A - Method for adjusting transporting level of longitudinal feed transporting device for steel tube - Google Patents

Abstract

PURPOSE:To easily keep stable transportation of a steel tube in a roller table type transporting device used for longitudinal feed transportation of the steel tube. CONSTITUTION:By taking the inlet side of a divided table as a fulcrum 5, the outlet side is elevated/lowered and adjusted. In this way, a gap (the amount of gap) between transporting rollers 1 and a table 2 that is suitable to the state of the steel tube 3 after rolling can be arbitrarily adjusted without changing the pass level of the rollers 1 and transportation of the steel tube 3 can be stably executed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roller table type conveying device used for longitudinally conveying a steel pipe, and to a conveying level adjusting method thereof.

[0002]

2. Description of the Related Art FIG. 2 is a diagram of a conventional apparatus for transporting steel pipes (15A to 100A). For example, a roller table type conveyor as shown in FIG. 2 is widely used for vertically feeding and conveying a steel pipe in a manufacturing line.

In the method of conveying the apparatus, a plurality of feed rollers 1 and an intermediate table 2 for guiding the rollers between them are provided in the traveling direction of the steel pipe 3, and the steel pipe is longitudinally fed by rotating the rollers. Here, as a method of adjusting the transfer level in the transfer device, as a bottom traveling level adjustment of the steel pipe according to the outer diameter of the steel pipe, a delivery table and a transfer device of a facility (for example, a finish rolling mill) arranged in front of the transfer device Only the bottom line alignment of the entry side table is performed, and when the transferred steel pipe travels straight on the roller table type transport device, it travels at a certain designed level regardless of the outer diameter of the steel pipe. is there.

[0004]

However, the above-described conventional conveying device and conveying level adjusting method have the following drawbacks. In the case of the conventional method shown in FIG. 2, since the gap between the feed roller and the intermediate table is constant by design, problems such as transport troubles often occur depending on the state of the traveling steel pipe. That is, when the traveling steel pipe is straight, it is good, but when the tip bend is large, the tip of the steel pipe abuts on the roller, which causes a transportation trouble. Depending on the production line, for example, in a line for continuously rolling steel pipes, an extremely inconvenient state occurs.

As a means for solving this phenomenon, there is a method of adjusting the feed roller or the intermediate table to be moved up and down depending on the bending state of the rolled steel pipe to adjust the contact state of the steel pipe tip with the roller. The method of moving the roller up and down is effective for preventing the abutment of the tip of the steel pipe, but the level of transportation through the entire vertical feed line fluctuates, and the inconvenience occurs in steel pipe transportation itself. In addition, in the method of moving the intermediate table up and down, for example, when the target table is lowered, the tip of the steel pipe abuts on the next table entry side.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems of the prior art and to provide a method of adjusting the transfer level of a roller table type vertical transfer transfer device capable of maintaining stable transfer in the vertical transfer transfer of a steel pipe. .

[0007]

DISCLOSURE OF THE INVENTION The present invention relates to a roller table type conveying device for longitudinally conveying a steel pipe by using a plurality of rollers and a table divided between the rollers, and the entrance side of the divided table is used as a fulcrum and the exit side is adjusted up and down. By doing so, it is possible to maintain a stable traveling normal state of the steel pipe, which is a method for adjusting the transport level of the steel pipe.

In other words, in order to achieve the object, the carrying level adjusting method of the present invention adjusts the steel pipe after rolling by adjusting the entrance side of the dividing table as the fulcrum and raising and lowering the exit side without changing the pass level of the feed roller. The feature is that a suitable gap between the roller and the table (gap amount) can be arbitrarily adjusted.

FIG. 1 is a view of a roller table type vertical feed conveying device for steel pipes according to the present invention. Reference numeral 1 is a feed roller, 2 is a divided intermediate table, 3 is a steel pipe, and 4 is a screw kicker for horizontal payout. As shown in the figure, the plurality of intermediate tables 2 are each a mechanism in which the table entrance side is a fulcrum 5 via a pin and the table exit side is lifted from the bottom via an arm lever lifting device 6 with respect to the progress of the steel pipe. The gap (gap amount) between the feed roller and the intermediate table can be arbitrarily changed.

[0010]

Next, the operation of the carrying level adjusting method of the present invention will be described. FIG. 3 is a diagram showing the operation of the present invention. Steel pipe 3
When a phenomenon of abutting against the feed roller 1 occurs due to the bending of the tip of the steel pipe during the vertical feeding and conveyance, the target intermediate table 2 is adjusted up and down by the method described above. As a result, without changing the pass level of the entire transport line,
The gap (gap amount) 7 between the roller 1 and the table 2 can be adjusted to a value suitable for the state of the steel pipe 3 without the phenomenon of hitting the next table, and the stable conveyance state can be maintained.

[0011]

As described above, according to the method of adjusting the transfer level of the present invention, when the trouble of hitting the tip of the steel pipe is eliminated in the roller table type transfer device which continuously transfers the steel pipe in the longitudinal direction on the production line. The processing can be performed without any special device or mechanism, the stable transportation state can be maintained, the equipment cost is compact and the cost is low, and the effect is extremely large.

[Brief description of drawings]

FIG. 1 is a diagram of a roller table type vertical feed conveyance device to which the present invention is applied.

FIG. 2 is a diagram of a conventional roller table type vertical feed transport device.

FIG. 3 is a diagram showing an operation of the present invention.

[Explanation of symbols]

 1 Feed roller 2 Intermediate table 3 Steel pipe 4 Screw kicker 5 Table entry side fulcrum 6 Table exit side arm lever lifting device 7 Gap amount

Claims (1)

[Claims] 1. A transportation level adjusting method in a roller table type transportation apparatus for longitudinally transporting a steel pipe by using a plurality of rollers and a table divided between the rollers, by adjusting the entrance side of the divided table as a fulcrum and raising and lowering the exit side. , A method for adjusting the transfer level in a vertical transfer device for a steel pipe, which is capable of maintaining a stable running state of the steel pipe.