Method and apparatus for winding material on a drum

In combination with a hot reversing mill system for reducing strip like material having a furnace including an internal rotatable coiler drum arranged to receive material from said mill for coiling said material traveling along a passline coincidental with a series of table rolls which on certain instances support the material passing under said coiler drum, said coiler drum rotating in a direction for underwinding said material thereon, said drum having a material receiving slot positionable in a predetermined angular position relative to the rotation of said drum for receiving the leading end of said material, an apparatus comprising:

• a pair of wrapper rollers arranged to have an inoperative position away from said drum below said table rolls and an operative position adjacent a portion of said drum and closely behind said slot when said slot is in its said material receiving position and with reference to the underwinding direction of rotation of said drum,
• means for mounting said wrapper rollers in a spaced arcuate relationship to said drum to effect a bending action on the material substantially immediately behind said slot when said slot is in its said material receiving position, and
• means for moving said wrapper rollers into and out of said inoperative and operative positions,
• means for mounting said table rolls in a manner to be retracted away from beneath said drum to permit said movement of said wrapper rollers in said inoperative and operative positions, and the removal of said table rolls away from the heat of said furnace during the coiling operations, and
• means for moving said table rolls beneath and from beneath said drum.

In a hot reversing mill for reducing a workpiece and having a rotatable coiler drum on a side thereof for coiling and uncoiling said material traveling along a passline defined by a series of table rolls, said coiler drum rotated in a desired direction for a winding operation of said material thereon, and comprising:

• an apparatus in cooperation with said coiler drum comprising:
• a shaft assembly located along said passline,
• a first and a second pivotal arm means commonly mounted on said shaft assembly and positionable near and away from said coiler drum along different locations of said drum, and arranged to extend on opposite sides of said drum and travel in a different arcuate path for said positioning relative to said coiler drum,
• means for pivoting said first and second pivotal arm means including means for said positioning of said first and second pivotal arm means close to said coiler drum above said passline for said winding operation of said material onto said drum,
• means mounted on said each first and second pivotal arm means for engaging and bending said material initially and subsequently wrapping said material onto said coiler drum for said winding operation of said material, and
• a table roll assembly associated with said coiler drum including means for selectively positioning said table roll assembly in the same location as at least one of said first and second pivotal arm means relative to said passline and along said passline to become part of said series of table rolls during flat reverse passes of said material through said mill and out of said passline during said winding operation of said material onto said coiler drum,
• said means for pivoting said first and second pivotal arm means includes means for independently positioning said at least one of said first and second pivotal arm means below said passline in a remote location to allow said positioning of said table roll assembly in said same location in said passline thereby allowing said table roll assembly to become part of said series of table rolls.

In a hot reversing mill for reducing a workpiece and having a rotatable coiler drum on a side thereof for coiling and uncoiling said material traveling along a passline defined by a series of table rolls, said coiler drum rotated in a desired direction for a winding operation of said material thereon, and comprising:

• an apparatus in cooperation with said coiler drum comprising:
• a shaft assembly located along said passline,
• a first and a second pivotal arm means commonly mounted on said shaft assembly and positionable near and away from said coiler drum along different locations of said drum, and arranged to extend on opposite sides of said drum and travel in a different arcuate path for said positioning relative to said coiler drum,
• means for pivoting said first and second pivotal arm means including means for said positioning of said first and second pivotal arm means close to said coiler drum above said passline for said winding operation of said material onto said drum,
• means mounted on said each first and second pivotal arm means for engaging and bending said material initially and subsequently wrapping said material onto said coiler drum for said winding operation of said material,
• a table roll assembly associated with said coiler drum including means for selectively positioning said table roll assembly along said passline to become part of said series of table rolls during flat reverse passes of said material through said mill and out of said passline during said winding operation of said material onto said coiler drum,
• said table roll assembly comprising a plurality of motor operated rotatable rolls,
• said means for selectively positioning said table roll assembly includes rail means arranged perpendicularly with respect to said passline for supporting said table roll assembly and a piston cylinder assembly connected to said table roll assembly.

In a hot reversing mill for reducing a workpiece and having a rotatable coiler drum on a side thereof for coiling and uncoiling said material traveling along a passline defined by a series of table rolls, said coiler drum rotated in a desired direction for a winding operation of said material thereon, and comprising:

• an apparatus in cooperation with said coiler drum comprising:
• a shaft assembly located along said passline,
• a first and a second pivotal arm means commonly mounted on said shaft assembly and positionable near and away from said coiler drum along different locations of said drum, and arranged to extend on opposite sides of said drum and travel in a different arcuate path for said positioning relative to said coiler drum,
• means for pivoting said first and second pivotal arm means including means for said positioning of said first and second pivotal arm means close to said coiler drum above said passline for said winding operation of said material onto said drum,
• means mounted on said each first and second pivotal arm means for engaging and bending said material initially and subsequently wrapping said material onto said coiler drum for said winding operation of said material,
• apron means arranged along said passline in close proximity to said coiler drum for supporting and guiding said workpiece along said passline and selectively out of said passline and onto said coiler drum,
• one of said pivotal arm means in said positioning above said passline comprising two spaced-apart arm members for receiving said apron means therebetween for unrestricted pivotal movement of said apron means relative to said passline.

In a method of coiling strip like material on a rotating drum rotated in a desired direction for an underwinding or an overwinding operation, which drum is provided with a slot for receiving the leading end of said material, which slot is predeterminedly positioned for said receiving of said material, for an underwinding operation the steps comprising:

• positioning a first and a second arm means close to said drum wherein said second arm means comprises at least two spaced apart wrapper rollers and said first arm means comprises a third wrapper roller,
• engaging at least the first wrap of said material on said drum by said at least two spaced apart wrapper rollers in a manner to engage, bend, and hold the material on said drum at a position closely adjacent to and behind said slot in said drum with reference to said material receiving position thereof, and
• engaging said first wrap of said material on said drum with said third wrapper roller at a point on said drum on the side of said slot when in its said material receiving position opposite the position of engagement of said pair of wrapper rollers and substantially close to said slot;
• and for an overwinding operation, the steps comprising:
• positioning said first arm means away from said drum to support and guide said material into said slot with reference to said material receiving position thereof and around said drum.