US 4,392,506 AGranted

Apparatus for conveying tubular materials in pickling facilities of the same

AssigneeKabushiki Kaisha Kobe Seiko Sho

InventorsYoshiro Tanaka, Hayato Moroi, Yukihiko Komatsu, Kazuo Akagi, Ryujiro Shitamatsu, Tadashi Nishimura

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Abstract

An apparatus for conveying tubular members along a plurality of treatment liquid tanks in pickling facilities. The apparatus includes a pair of guide rails and a travelling car adapted to reciprocate on the guide rails. The travelling car includes at least one pair of tube-supporting hooks which can be reciprocated upwardly and downwardly and turned between positions parallel to the rails and other positions perpendicular to the rails. The tube-supporting hooks can be lowered or raised independently so as to support the tubular members aslant near the treatment liquid level in each of the treatment liquid tanks, thereby allowing immersion of the tubular members into the treatment liquid or retraction of the tubular members out of the treatment liquid without forming considerable air bubbles in the liquid. Since such bubbles are known to develop stains on the tubular members, tubular members of high surface quality can be obtained. The above apparatus also permits a smooth, simple and efficient conveyance and loading and unloading of tubular members between the treatment liquid tanks.

Claims11

Dependent claims

An apparatus for conveying tubular members in pickling facilities for the same, said pickling facilities including a plurality of treatment liquid tanks disposed in series, said apparatus comprising:

a pair of guide rails arranged respectively in the direction of the arrangement of the tanks and along corresponding sides of the tanks;
a travelling car reciprocably disposed on the guide rails;
at least one pair of tube-supporting hooks mounted on the travelling car and spaced in the widthwise direction relative to the guide rails;
elevating means operatively connected with the travelling car for moving each of the tube-supporting hooks upwardly and downwardly;
swivel drive means operatively connected with the travelling car for turning each of the tube-supporting hooks between a position parallel to the lengthwise direction of the rails and a position perpendicular to the lengthwise direction of the rails;
a horizontal position detector for stopping and starting the travelling car at a position corresponding to each of the treatment liquid tanks;
a vertical position detector for sensing the position of each of the tube-supporting hooks at locations both below and above the liquid level in each of the treatment liquid tanks;
and
means for interlockingly connecting the vertical position detector and said elevating means.

6 more elements

Dependencies are inferred from the claim text.