Claims
- 1. An improved machine for lifting and loading a web roll, that has substantially parallel ends and a central core opening extending from one end to the other, from an unloaded position, where the web roll is disposed on a relatively fixed surface adjacent to the machine and is spaced forwardly of the machine in a first predetermined direction and where the longitudinal axis of the central core opening is substantially parallel to the first predetermined direction, to an unwind position, where the web from the web roll may be unwound by rotation of the web roll about the longitudinal axis of its central core opening and where the web roll is rearwardly of its unloaded position, the improved lifting and loading machine comprising:
- a frame for supporting the web roll in its unwind position;
- a lift arm having a first end and a second end;
- a spindle that is mounted on and cantilevered from the first end of the lift arm, with the longitudinal axis of the spindle being substantially perpendicular to the plane of the lift arm and extending in the first predetermined direction and toward the one end of the web roll when the web roll is in its unloaded position and that is adapted to be received within the central core opening of the web roll;
- means for mounting the lift arm on the frame, the mounting means including a first rod that is mounted on the frame so that its longitudinal axis is substantially parallel to the longitudinal axis of the spindle and first bearing means that are mounted on the second end of the lift arm and that engage the first rod whereby the first end of the lift arm may be selectively pivoted vertically, with respect to its second end about a first axis substantially parallel to the longitudinal axis of the spindle and whereby the lift arm may be moved forwardly and rearwardly along a horizontal path of travel substantially parallel to the longitudinal axis of the spindle; and
- means for moving the first end of the lift arm vertically between an upper position where the web roll, when mounted on the spindle, may be rotated about the longitudinal axis of its central core opening so that the web on the web roll may be unwound from the web roll and a lower position where the spindle may be inserted into the central core opening of the web roll when the web roll is in its unloaded position, the means for moving the lift arm vertically including a power cylinder that has its one end pivotably connected with the first end of the lift arm and that has its other end pivotably connected with the frame; a second rod that is mounted on the frame so that the longitudinal axis of the second rod is substantially parallel to the horizontal path of travel; and second bearing means that are connected with the other end of the power cylinder and engage the second rod so that the other end of the power cylinder may be moved along the longitudinal axis of the second rod and may be pivoted about the longitudinal axis of the second rod; and means for moving the lift arm along the horizontal path of travel forwardly and rearwardly in a direction substantially parallel to the first predetermined direction between a forward position, where the spindle may be inserted in the central core opening of the web roll when the web roll is in its unloaded position, and a rearward position, with the moving means being adapted to selectively move the web roll between its unloaded position and its unwind position.
- 2. An improved machine for lifting and loading a web roll, that has substantially parallel ends and a central core opening extending from one end to the other, from an unloaded position, where the web roll is disposed on a relatively fixed surface adjacent to the machine and is spaced from the machine in a first predetermined direction, to an unwind position, where the web from the web roll may be unwound by rotation of the web roll about the longitudinal axis of its central core opening, the improved lifting and loading machine comprising:
- a frame for supporting the web roll in its unwind position;
- a lift arm having a first end and a second end;
- a spindle that is mounted on and cantilevered from the first end of the lift arm, with the longitudinal axis of the spindle being substantially perpendicular to the plane of the lift arm and extending in the first predetermined direction and toward the one end of the web roll when the web roll is in its unloaded position, and that is adapted to be received within the central core opening of the web roll;
- means for mounting the lift arm on the frame so that the first end of the lift arm may be selectively pivoted, with respect to its second end, about a first axis that is substantially parallel to the longitudinal axis of the spindle and so that the lift arm may be moved along a path of travel that is substantially parallel to the longitudinal axis of the spindle, with the mounting means including: a first rod that is mounted on the frame so that its longitudinal axis is co-axial with the first axis and is substantially parallel to the path of travel of the lift arm; and first bearing means connected with the second end of the lift arm and engaging the first rod so that the second end of the lift arm may be moved along the first rod and so that the first end of the lift arm may be pivoted about the longitudinal axis of the first rod;
- means for moving the lift arm between a first position where the web roll, mounted on the spindle, is in its unwind position and a second position where the spindle is inserted into the central core opening of the web roll when the web roll is in its unloaded position; and
- side-lay sensing means, mounted on the frame, for sensing the position of a side edge of the web, with respect to a fixed reference position, as the web is being unwound from the web roll, while the web roll is in its unwind position; slide-lay motor means for driving an output shaft; the motor means being mounted on the frame and being adapted to rotate its output shaft in a clockwise direction or counterclockwise direction in response to the position of the side edge of the web, with respect to the reference position, as sensed by the side-lay sensing means; and means for connecting the output shaft of the motor means with the second end of the lift arm, when the lift arm is in its first position, and for causing the lift arm, and thus the web roll, to be moved in one direction or in the opposite direction, along the path of travel, in response to clockwise or counter-clockwise rotation of the output shaft of the motor means.
- 3. The improved lifting and loading machine of claim 2 wherein the slide-lay motor means are mounted on one end of a spring member and is disposed in the plane in which the first bearing means moves as the lift arm is moved along the path of travel; wherein the other end of the spring member is mounted on the frame; and which includes means for positioning the motor means so that the output shaft of the motor means is connected with the second end of the lift arm as the lift arm is moved to its first position.
- 4. The improved lifting and loading machine of claim 3 wherein the first bearing means contacts the positioning means as the lift arm is moved to its first position and deflects the motor means out of the plane in which the first bearing means moves against the bias of the spring member.
- 5. The improved lifting and loading machine of claim 1 wherein means for braking the rotation of the spindle are mounted on and carried by the first end of the lift arm.
- 6. An improved machine for lifting and loading a web roll, that has substantially parallel ends and a central core opening extending from one end to the other, from an unloaded position, where the web roll is disposed on a relatively fixed surface adjacent to the machine and is spaced from the machine in a first predetermined direction, to an unwind position, where the web from the web roll may be unwound by rotation of the web roll about the longitudinal axis of its central core opening, the improved lifting and loading machine comprising:
- a frame for supporting the web roll in its unwind position;
- a lift arm having a first end and a second end;
- a spindle that is mounted on and cantilevered from the first end of the lift arm, with the longitudinal axis of the spindle extending in the first predetermined direction and toward the one end of the web roll when the web roll is in its unloaded position and that is adapted to be received within the central core opening of the web roll;
- means for mounting the lift arm on the frame so that the first end of the lift arm may be selectively pivoted, with respect to its second end, about a first axis that is substantially parallel to the longitudinal axis of the spindle and so that the lift arm may be moved along a path of travel that is substantially parallel to the longitudinal axis of the spindle; and
- means for moving the lift arm between a first position where the web roll, mounted on the spindle, is in its unwind position and a second position where the spindle is inserted into the central core opening of the web roll when the web roll is in its unloaded position, the moving means including an idler roller assembly having an idler roller that is spaced vertically upwardly from the lift arm and that is mounted, at one end, for rotation about an axis of rotation substantially parallel to the longitudinal axis of the spindle; and a handle that is disposed adjacent the other end of the idler roller and that serves as a means to manually move the lift arm along the path of travel.
- 7. An improved machine for lifting and loading a web roll, that has substantially parallel ends and a central core opening extending from one end to the other, from an unloaded position, where the web roll is disposed on a relatively fixed surface adjacent to the machine and is spaced from the machine in a first predetermined direction, to an unwind position, where the web from the web roll may be unwound by rotation of the web roll about the longitudinal axis of its central core opening, the improved lifting and loading machine comprising:
- a frame for supporting the web roll in its unwind position;
- a lift arm having a first end and a second end;
- a spindle that is mounted on and cantilevered from the first end of the lift arm, with the longitudinal axis of the spindle being substantially perpendicular to the plane of the lift arm and extending in the first predetermined direction and toward the one end of the web roll when the web roll is in its unloaded position and that is adapted to be received within the central core opening of the web roll;
- means for mounting the lift arm on the frame so that the first end of the lift arm may be selectively pivoted, with respect to its second end, about a first axis that is substantially parallel to the longitudinal axis of the spindle and so that the lift arm may be moved along a path of travel that is substantially parallel to the longitudinal axis of the spindle, the mounting means including: a first rod mounted on the frame so that its longitudinal axis is co-axial with the first axis and is substantially parallel to the path of travel of the lift arm; first bearing means connected with the second end of the lift arm and engaging the first rod so that the second end of the lift arm may be moved along the first rod and so that the first end of the lift arm may be pivoted about the longitudinal axis of the first rod;
- means for moving the lift arm between a first position where the web roll, mounted on the spindle, is in its unwind position and a second position where the spindle is inserted into the central core opening of the web roll when the web roll is in its unloaded position, the moving means including an idler roller assembly having an idler roller that is spaced vertically upwardly from the lift arm and that is mounted, at one end, for rotation about an axis of rotation substantially parallel to the longitudinal axis of the spindle; a handle that is disposed adjacent the other end of the idler roller and that serves as a means to manually move the lift arm along the path of travel; a power cylinder having its one end pivotably connected with the first end of the lift arm and having its other end pivotably connected with the frame; a second rod mounted on the frame so that the longitudinal axis of the second rod is substantially parallel to the path of travel; and second bearing means connected with the other end of the power cylinder and engaging the second rod so that the other end of the power cylinder may be moved along the longitudinal axis of the second rod and may be pivoted about the longitudinal axis of the second rod.
- 8. The improved lifting and loading machine of claim 7 wherein slide-lay motor means are mounted on one end of a spring member and are disposed in the plane in which the first bearing means moves as the lift arm is moved along the path of travel; wherein the other end of the spring member is mounted on the frame; and which includes means for positioning the motor means so that the output shaft of the motor means is connected with the second end of the lift arm as the lift arm is moved to its first position.
- 9. The improved lifting and loading machine of claim 8 wherein the first bearing means contacts the positioning means as the lift arm is moved to its first position and deflects the motor means out of the plane in which the first bearing means moves against the bias of the spring member; and wherein means for braking the rotation of the spindle are mounted on and carried by the first end of the lift arm.
- 10. The improved machine described in claim 1 wherein the web roll is in its unwind position when the spindle is received within the central core opening of the web roll and when the first end of the lift arm is in its upper position and the second end of the lift arm is in its rearward position.
Parent Case Info
This application is a continuation of application Ser. No. 910,361, filed Sept. 22, 1986 now abandoned.
US Referenced Citations (6)
Continuations (1)
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Number |
Date |
Country |
Parent |
910361 |
Sep 1986 |
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