Kabushiki Kaisha Kobe Seiko Sho

Yukihiko Komatsu

Kazuo Akagi

Ryujiro Shitamatsu

Tadashi Nishimura

Yoshiro Tanaka

Teruaki Kawamura

Hayato Moroi

Masaru Sakai

Hiroshi Yamane

Nobuhiko Harada

A chamfering apparatus for opposing end faces of a tubular member. The apparatus includes an abutment member capable of advancing toward or being retracted from a line of extension of the longitudinal axis of the tubular material so as to collide with the end face when advanced, a conveyor for transporting the tubular member toward the abutment member, a chuck provided between the abutment member and conveyor for releasably holding the tubular member on the conveyor, and a cutting tool displaceable relative to the end face of the tubular member received by the abutment member and held by the chuck. The cutting tool is capable of rotating around the longitudinal axis of the tubular member. The cutting tool is equipped with a cutting member adapted to taper cut the outer peripheral edge of the end face as well as a drill having a first cutting edge adapted to taper cut the inner peripheral edge of the end face and a second cutting edge adapted to cut the end face perpendicularly to the longitudinal axis of the tubular member. The chamfering apparatus can be applied to tubular members of different lengths as the end face of each tubular member can be positioned precisely owing to the provision of the abutment member and conveyor and only two cutting tools are required to chamfer three locations on each end face of the tubular member.

Chamfering apparatus for end faces of tubular members

An apparatus for continuously pickling the outer surfaces of hermetically plugged tubular members is described. The apparatus includes a plurality of liquid tanks which separately contain different pickling liquids and define through-holes in their respective front and rear walls on at least one common longitudinal line to permit the successive passage of the tubular members therethrough while rotating them around their respective longitudinal axes. The apparatus includes a cleaning tank and cleaning brush unit provided sequentially before the liquid tanks. The cleaning tank includes at least one ultrasonic cleaning oscillator and defines through-holes in the front and rear walls thereof for allowing said tubular members to pass through the cleaning tank and the brush unit. Since any oil, grease or dust can be completely removed by the cleaning tank and brush unit prior to pickling, it is possible to obtain tubular members having excellent outer surface quality.

Apparatus for continuously pickling the outer surfaces of tubular

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.

Apparatus for conveying tubular materials in pickling facilities of the

A degreasing apparatus for an elongated member including a treatment room sequentially divided in an isolated fashion and along the feeding direction of the elongated member into a degreasing chamber, a predrying chamber and a finish drying chamber. At least one pair of rotary brushes are provided in the degreasing chamber. The degreasing chamber is also provided with means for jetting out a degreasing liquid in a direction toward the inlet side of a contact area between the brushes and elongated mechanism. Elastic degreasing members are provided, respectively, at the inlet and outlet sides of the degreasing chamber to remove oil or grease from the elongated member before it enters the degreasing chamber and to wipe off any degreasing liquid remaining on the elongated member prior to passing the same into the predrying chamber. The predrying chamber houses a mechanism for jetting out water or steam against the elongated member while the finish drying chamber is provided with a mechanism to blow hot air against the elongated material and to dry it completely. The above degreasing apparatus can be formed in a reduced size and convenient for coupling with drawing machine and/or roller straightening machine, thus enabling continuous treatment of elongated members. Owing to the mutual isolation of the chambers, their respective treatment media can be saved and the overall processing efficiency can be improved.

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Shimonoseki, Japan

Yukihiko Komatsu