Abstract: Removal of tightly encircling bands from coiled strips is accomplished by transversely engaging a spaced pair of pinch rolls against the band on a coil and then severing the band therebetween and moving one pinch roll into engagement with the other pinch roll to pinch the severed band end therebetween, and at least one roll is driven to feed the pinched band outwardly away from the coil into a scrap chopper. The device used for severing the band is provided with a band shear which is movable along a track that runs transverse to the band. The shear is driven along the track to lodge a sharp leading edge thereof under the band and the shear is then actuated to sever the band, and thereafter the band severing means is removed from between the pinch rolls.
Abstract: A sealing arrangement for sealing a stationary member to a rotatable member wherein a neck of the rotatable member is coaxially received in a sleeve secured for rotation therewith and the sleeve is journaled for rotation in the stationary member. An extension ring is annularly secured to one end of the sleeve with a normally flat annular thrower seal of elastomeric material annularly engaged between this extension ring and the one end of the sleeve to provide a seal therebetween with inner and outer annular peripheral portions of the thrower seal radially protruding. The inner peripheral portion of the thrower seal annularly engages the neck of the rotatable member under elastic deformation to provide an annular static seal and a peripheral side face of the outer peripheral portion of the thrower seal annularly engages an annular seal rubbing surface of the stationary member under elastic deformation to provide an annular rubbing seal therebetween.
Abstract: In a mill roll bearing assembly, wherein a mill roll neck is coaxially received in a bearing sleeve journaled for rotation therewith in a housed bearing, and which further includes a sleeve retainer secured to the annular outside end of the bearing sleeve, an inspection passage is provided through an upper end portion of the bearing housing, which reveals the then rotatably positioned uppermost end portion of the sleeve end retainer where it annularly mates with the bearing sleeve and a removable closure is provided for the passage. A second inspection passage is also provided through the end of the sleeve retainer near the outer peripheral edge thereof, which reveals a portion of the outside ends of the sleeve and roll neck where they annularly mate. A feeler gauge is then inserted through the passages when aligned, to check whether the roll neck is fully seated in the bearing sleeve.
Abstract: A taper journal bearing for rolls for use in rolling mills including a keying arrangement for keying the roll neck sleeve to the roll neck. The bearing includes a bushing housed in a roll bearing chock, a sleeve closely fitted onto a tapered journal or roll neck of the roll, an oil film deposited between the bushing and the sleeve, and a key arrangement for fixing the sleeve to the roll wherein a flat is machined on the outer end of the taper on the surface of the taper journal of the roll in parallel to the taper with this flat underlying one end of the sleeve at the outer end of the load zone of the roll neck. A keyway is provided in one end of the sleeve such that it is open to and in registration with the flat machined on the roll neck taper. A key is slidably received in the keyway and has a tapered flat surface in sliding engagement with the flat on the roll taper to create a wedging action against the flat when the key is urged into the keyway.
Abstract: A hot strip rolling mill stand, and more particularly a mill stand for use in the hot rolling process of a continuous strip casting system for aluminum, aluminum alloys and other metals, and which includes an improved means for the discrete applications of coolant for cooling rolls and to maintain thermostability and also for applying direct application lubricant for the strip being reduced.
Abstract: A strip mill entry guide mechanism having upper and lower platens positioned to receive and clamp strip material passing therebetween. One of the platens is driven by a first drive mechanism toward the other platen into clamping engagement with the strip. This first drive mechanism is locked in this clamping position to prevent its forced retraction therefrom while this same driven platen is further driven into heavier clamping engagement with the moving strip with a second drive mechanism disposed between the locked first said drive mechanism and the platen being driven.
Abstract: A method and apparatus for coil handling at a mill entry and more particularly a method and apparatus providing improved sequencing and more positive handling in the preparation of the head end of the strip and in guiding and feeding the strip to mill production equipment.
Abstract: A tension reel for strip coiling which includes a continuous double expansible mandrel rotatably supported at opposite ends to a frame. The double expansible mandrel consists of two expansible mandrel sections joined endwise in axially separable drive engagement such that rotation of one mandrel section for strip coiling also drives the other mandrel section when they are axially joined in driving engagement. Means are provided to axially engage and retract the mandrel sections relative to each other to remove the coiled strip from between the divided and collapsed mandrel sections.
Abstract: A sealing arrangement is disclosed for sealing a stationary member to a rotatable member and comprises a pair of rubbing seals mounted on one of the rotatable and stationary members in rubbing engagement with the other of the members. The rubbing seals are relatively closely spaced to form a sealant space therebetween extending radially from the rotatable member to the stationary member and circumferentially and continuously about the rotatable member. The stationary member has a sealant passage extending therethrough in communication with the sealant space. An arrangement is provided for injecting fluid sealant through the sealant passage and into the sealant space so that the sealant space is completely filled with sealant to form a continuous sealing band of fluid sealant extending circumferentially about the rotatable member.
Abstract: A prepackaged coiler assembly is disclosed and includes a housing, a plurality of wrapper rolls, a support for each of the wrapper rolls movably mounted on the housing, and motive hold-downs coupled to each of the supports and mounted on the housing. The motive hold-downs are disposed for urging the supports and the rolls toward a mandrel mounted independently and centrally of the wrapper rolls and for withdrawing the supports and rolls from the mandrel and from a strip coil thereon to permit ejection of the coil through a side opening in the housing. At least one of the motive hold-downs is disposed for withdrawing the associated wrapper roll and support to a further withdrawn position to permit lifting of the prepackaged assembly over the mandrel. The housing is provided with a bottom opening for passage of the mandrel therethrough.