Support drum assembly with cross-shaft linkage for variable backlash control
AssigneeBeloit Technologies, Inc.
InventorNoel R. Johnson
Life of this patent
Estimating the term…
Abstract
A support drum assembly is provided for a torque, nip and web tension type of reel. The support drum assembly includes an actuating mechanism disposed at one end of the support drum which enables one end of the drum to be raised or lowered with respect to the other end of the drum for adjusting the amount of backlash while the machine is in operation. The support drum assembly includes a cross shaft linkage which will allow at least two different backlash settings to be used at any time during the machine operation.
Claims25
A support drum assembly for applying a nip load to a reel spool, the support drum assembly comprising:
- a support drum comprising a first end and a second end,
- a cross shaft comprising a first end and a second end, the first end of the cross shaft being supported by a first stationary frame, the second end of the cross shaft being supported by a second stationary frame,
- the first end of the cross shaft further being connected to a first drum support bracket, the first drum support bracket supporting the first end of the support drum,
- the second end of the cross shaft being connected to a link, the link being connected to a second drum support bracket and an actuator, the second drum support bracket supporting the second end of the support drum, the actuator moving the link and the second end of the support drum vertically with respect to the first end of the end of the support drum.
An adjustable support drum assembly for applying a nip load to a reel spool, the support drum assembly comprising:
- a support drum comprising a first end and a second end,
- a cross shaft comprising a first end and a second end, the first end of the cross shaft being supported by a first stationary frame, the second end of the cross shaft being supported by a second stationary frame,
- the first end of the cross shaft further being connected to a first mounting plate, the first mounting plate being connected to a first drum support bracket, the first drum support bracket supporting the first end of the support drum,
- the second end of the cross shaft being connected to a link, the link being connected to a second mounting plate and an actuator, the second mounting plate being connected to a second drum support bracket, the second drum support bracket supporting the second end of the support drum, the actuator moving the link, the second mounting plate and the second end of the support drum between at least two vertical positions thereby varying the vertical position of the second end of the support drum with respect to the first end of the support drum.
A method of adjusting the backlash of a support drum assembly for applying a nip load to a reel spool, the method comprising the steps of:
- providing a support drum assembly comprising a cross shaft comprising a first end and a second end, the first end of the cross shaft being supported by a first stationary frame, the second end of the cross shaft being supported by a second stationary frame, the first end of the cross shaft further being connected to a first drum support bracket, the first drum support bracket supporting a first end of a support drum, the support drum comprising a second end, the second end of the cross shaft being connected to a link, the link being connected to a second drum support bracket and an actuator, the second drum support bracket supporting the second end of the support drum,
- actuating the actuator to move the link and the second end of the support drum vertically with respect to the first end of the end of the support drum.
A method of reeling a traveling web into a wound web roll, comprising the following steps:
- moving a reel spool having a rotational axis to an initial position;
- engaging the reel spool in an initial position with a translationally movable support drum, the support drum being rotatably driven about a rotational axis thereof along a nip pressure line of contact between the support drum and the reel spool;
- bringing a traveling web onto the reel spool in an initial position to commence winding of the web onto the reel spool to form a wound web roll thereon;
- moving the web roll from the initial position to a winding position while maintaining the web roll in nipping engagement with the support drum;
- moving the support drum substantially vertically to engage the wound web roll and urging the support drum upwardly or downwardly to maintain the nipping engagement against the wound web roll in the winding position to provide the desired nip pressure as the wound web roll increases in diameter during the reeling process;
- and
- moving one end of the support drum substantially vertically with respect to the other end of the support drum to maintain a uniform nip pressure against the wound web roll as the wound web roll increases in diameter during the reeling process.
Dependencies are inferred from the claim text.