Automatic inside head holder structure

Claim 2

In a crimper and head holder for holding heads to the end of a roll of paper and crimping the wrapper thereover, a carriage disposed above the top of the largest roll to be wrapped, first and second telescopic members movably mounted on said carriage and connected together to effect movement of said first telescopic member twice the distance of movement of said second telescopic member, means carried by said first telescopic member and movable to engage the periphery of the roll and thereby sense the diameter of the roll, crimper means carried by said first telescopic member for crimping a wrapper about the end of the roll, and a head holding arm movably carried by said second telescopic member and movable to divide the diameter of the roll in half as the diameter of the roll is sensed by said first telescopic member, said arm having a head holder on the end thereof operable to hold a disk in centered relation with respect to the center of the roll.

Claim 3

The device of claim 1, wherein the first and second telescopic members comprise an inner member carrying the roll diameter sensing means and crimper, an outer member carrying the head holder arm, fluid pressure means vertically moving said outer member, a motion multiplying drive connection between said outer and inner members for moving said inner member twice the distance of movement of said outer member and positioning said head holding arm to divide the diameter of the roll in half and hold a disk in centered relation with respect thereto.

Claim 4

The device of claim 2, wherein the head holding arm is transversely pivoted to said telescopic member, and power means are provided for pivotally moving said arm and positioning the outer end of said arm in centered relation with respect to the axis of the roll of paper upon sensing the diameter of the roll by said roll diameter sensing means.

Claim 5

The device of claim 2, wherein the motion multiplying connection comprises a direction changing member rotatably mounted on said outer telescopic member for movement therewith, and a flexible drive member trained about said direction changing member and fixedly connected to said carriage at one end and to said inner telescopic member at its opposite end.

Claim 6

The device of claim 4, wherein a disk is rotatably mounted on the end portion of said arm for rotation about an axis coaxial with the center of the roll of paper, and wherein the means pivotally moving said arm comprise power means pressing said disk into engagement with a protective head on the end of a roll of paper to hold the protective head thereto during a wrapping operation.

Claim 7

The device of claim 4, wherein the power means comprise fluid pressure cylinder and piston means for pivoting said arm and disk and holding said disk in engagement with the head on the end of a roll of paper to be wrapped.

Claim 8

The device of claim 3, wherein the sensing means sensing the periphery of the roll of paper comprise two spaced press rolls rotatable about horizontally aligned axes parallel to the axis of rotation of the roll of paper, and a crimper wheel coaxial with one of said press wheel crimping the projecting end of the wrapper about the end of the roll of paper and the head held thereto.

Claim 9

The device of claim 5, wherein the head holder disk is a vacuum cup rotatably mounted on said arm and connected with a source of vacuum through said arm to pick up and place a head on the end of a roll of paper and hold the head thereon during a wrapping operation.

Claim 10

In a head holder determining the center of a roll of paper and holding a head in centered relation relative to the roll of paper during the operation of crimping a wrapper about the end of a roll of paper, and in combination with a roll stand supporting and driving the roll of paper, a cross beam supported above the roll stand and extending in a cross machine direction, a separate carriage for each end of the roll movably mounted on said cross beam, a crimping assembly carried by said carriage and mounted for vertical movement relative thereto and including a crimper arm guided for telescopic movement relative to said carriage in a vertical direction, a crimper paddle mounted on each crimper arm for rotation about an axis parallel to the axis of the roll and facing the end of the roll of paper, power means for moving said carriages inwardly toward the center of the roll at the termination of a crimping operation and outwardly beyond the ends of the roll to initiate the next succeeding crimping operation, other power means raising said arms and crimper paddles above the top of the roll and accommodating lowering of said arms to bring the crimper paddles along opposite ends of the roll to crimp the projecting ends of the wrapper to the roll, said other power means including a telescopic member guided in said carriage for movement relative to said crimper arm, power means telescopically moving said telescopic member relative to said carriage, a motion multiplying drive connection between said telescopic member and said crimper arm moving said crimper arm twice the distance of movement of said telescopic member, a head holder arm transversely pivoted to said telescopic member and having an end in centered relation with respect to the arm of said crimper paddle when in an extreme downward position of movement, and moving vertically at half the distance of travel of sAid crimper paddle to be in centered relation with respect to the roll of paper when said crimper paddle is in position to crimp the wrapper downwardly about the roll of paper, and a head holder disk rotatably mounted on said arm to be in centered relation with respect to the roll of paper as said crimper paddle is in a crimping position, to hold a head to the end of the roll of paper during crimping of the wrapper about the end of the roll of paper.

Claim 11

In a head holder determining the center of a roll of paper and holding a head in centered relation relative to the roll of paper during the operation of crimping a wrapper about the end of a roll of paper, and in combination with a roll stand supporting and driving the roll of paper, a cross beam supported above the roll stand and extending in a cross machine direction, a separate carriage for each end of the roll movably mounted on said cross beam, a crimping assembly carried by said carriage and mounted for vertical movement relative thereto and including a crimper arm guided for telescopic movement relative to said carriage in a vertical direction, a crimper paddle mounted on each crimper arm for rotation about an axis parallel to the axis of the roll and facing the end of the roll of paper, power means for moving said carriages inwardly toward the center of the roll at the termination of a crimping operation and outwardly beyond the ends of the roll to initiate the next succeeding crimping operation, other power means raising said arms and crimper paddles above the top of the roll and accommodating lowering of said arms to bring the crimper paddles along opposite ends of the roll to crimp the projecting ends of the wrapper to the roll, said other power means including a telescopic member guided in said carriage for movement relative to said crimper arm, power means telescopically moving said telescopic member relative to said carriage, a motion multiplying drive connection between said telescopic member and said crimper arm moving said crimper arm twice the distance of movement of said telescopic member, a head holder arm transversely pivoted to said telescopic member and having an end in centered relation with respect to the arm of said crimper paddle when in an extreme downward position of movement, and moving vertically at half the distance of travel of sAid crimper paddle to be in centered relation with respect to the roll of paper when said crimper paddle is in position to crimp the wrapper downwardly about the roll of paper, and a head holder disk rotatably mounted on said arm to be in centered relation with respect to the roll of paper as said crimper paddle is in a crimping position, to hold a head to the end of the roll of paper during crimping of the wrapper about the end of the roll of paper.

Claim 12

The crimping apparatus of claim 9, wherein the means moving the first telescopic member is a fluid pressure operated cylinder and piston, and wherein the motion multiplying connection comprises at least one direction changing member rotatably journalled on said first telescopic member adjacent the top thereof, a direction device fixed at one end to said carriage and extending about said direction changing member and fixed at its opposite end to said crimper arm to move said crimper arm and wheel twice the distance of movement of said first telescopic member.

Claim 13

The crimping apparatus of claim 10, including a fluid pressure operated cylinder and piston pivotally mounted on said telescopic member and having pivotal connection with said head holder arm for moving said head holder arm toward and from the end of a roll of paper, and holding said arm to center the head holder disk relative to the center of the roll of paper, and hold an inside head thereto.

Claim 14

The head holder of claim 9, wherein the head holder disc is in the form of a vacuum cup rotatably journalled on the end of said head holder arm and connected with a source of vacuum, to be moved by said arm to pick up a head and apply and hold a head to the end of the roll of paper.