Apparatus for controlled braking of a driven textile material engaging roll
AssigneeMcCoy-Ellison, Inc.
InventorsJohn F. Hagewood, Julius Darigo, Bruce S. McCoy, John M. Single, Charles E. Jackson, Jr.
Life of this patent
Estimating the term…
Abstract
In a textile warping system having one or more driven yarn engaging or yarn winding rolls, e.g. a driven warp beam, braking of each driven component is controlled by an individual pneumatic brake operated by a central programmable logic control system to brake the driven component according to a predetermined relationship of decreasing speed to elapsed braking time.
Claims35
In a textile draw warping system having a first set of upstream guide rolls driven by a common first drive means and a second set of downstream guide rolls driven by a common second drive means at a greater surface speed that said first set of rolls for drawing a plurality of synthetic continuous filaments traveling peripherally in sequence over said rolls, apparatus for controlled braking of said first and second sets of rolls, said apparatus comprising:
- (a) a plurality of fluid actuated braking means each respectively associated with one of said rolls,
- (b) a plurality of adjustable valve means each respectively associated with one of said braking means for individually supplying a pressurized operating fluid to each said braking means at independently selectively variable pressures for generation of a correspondingly variable braking force by each said braking means, and
- (c) braking program means for individually controlling adjustment of each said valve means for controlling the pressure at which the pressurized operating fluid is supplied respectively to each said braking means for individually controlling deceleration of each said roll of said first set in a common predetermined relationship of decreasing roll speed to elapsed time of actuation of said braking means and for individually controlling deceleration of each said roll of said second set in another common predetermined relationship of decreasing roll speed to elapsed time of actuation of said braking means related to said common relationship of said first set of rolls for maintaining a predetermined ratio between the common speed of said first set of rolls and the common speed of said second set of rolls during braking.
Apparatus for controlled braking of first and second textile material engaging rolls driven respectively by first and second drive means, said first and second rolls being arranged for engaging a continuous length textile material in sequence with one another, said apparatus comprising first means for applying a variable braking force to said first roll, second means for applying a variable braking force to said second roll, and braking program means for controlling said first variable braking means for controlling deceleration of said first roll in a predetermined relationship of decreasing speed of said first roll to elapsed time of actuation of said first variable braking means and for independently controlling braking of said second roll by said second variable braking means simultaneously with, and in a predetermined relation to, braking of said first roll for maintaining predetermined tension in the textile material between said first and second rolls.
Apparatus for controlled braking of first and second textile material engaging rolls driven respectively by first and second drive means, said first roll being arranged for winding of textile material thereabout and said second roll being arranged for engaging the textile material in advance of said first roll, said apparatus comprising means for applying a variable braking force to said first roll, braking program means for controlling said variable braking means for controlling deceleration of said first roll in a predetermined relationship of decreasing speed of said first roll to elapsed time of actuation of said variable braking means, and means for determining the wound diameter of textile material on said first roll, said diameter determining means comprising means for determining a comparison of the axial speeds of said first and second rolls and extrapolating therefrom the wound diameter of textile material on said first roll, said braking program means including means for adjusting said predetermined speed-to-time relationship according to the total mass of said first roll and textile material would thereabout as a function of the determined would diameter of textile material on said first roll.
Apparatus for controlled braking of first and second textile material engaging rolls driven respectively by first and second drive means, said first and second rolls being arranged for engaging a continuous length textile material in sequence with one another, said apparatus comprising first fluid-actuated means for braking said first roll, second fluid-actuated means for braking said second roll, means for supplying a pressurized operating fluid to said first fluid-actuated braking means at a selectively variable pressure for generation of a correspondingly variable braking force by said first fluid-actuated braking means, means for supplying a pressurized operating fluid to said second fluid-actuated braking means at a selectively variable pressure for generation of a correspondingly variable braking force by said second fluid-actuated braking means, and braking program means for controlling said fluid supplying means for controlling the pressure at which the pressurized operating fluid is supplied to said first braking means for controlling deceleration of said first roll in a predetermined relationship of decreasing speed of said first roll to elapsed time of actuation of said first braking means and for independently controlling braking of said second roll by said second fluid-actuated braking means simultaneously with, and in a predetermined relation to, braking of said first roll for maintaining predetermined tension in the textile material between said first and second rolls.
Apparatus for controlled braking of first and second textile material engaging rolls driven respectively by first and second drive means, said first roll being arranged for winding of textile material thereabout and said second roll being arranged for engaging the textile material in advance of said first roll, said apparatus comprising fluid-actuated means for braking said first roll, means for supplying a pressurized operating fluid to said fluid-actuated braking means at a selectively variable pressure for generation of a correspondingly variable braking force by said fluid-actuated braking means, braking program means for controlling said fluid supplying means for controlling the pressure at which the pressurized operating fluid is supplied to said braking means for controlling deceleration of said first roll in a predetermined relationship of decreasing speed of said first roll to elapsed time of actuation of said braking means, and means for determining the wound diameter of textile material on said first roll, said diameter determining means comprising means for determining a comparison of the axial speeds of said first and second rolls and extrapolating therefrom the wound diameter of textile material on said first roll, said braking program means including means for adjusting said predetermined speed-to-time relationship according to the total mass of said first roll and textile material wound thereabout as a function of the determined wound diameter of textile material on said first roll.
Apparatus for controlled braking of a textile material engaging roll driven by a drive means, said roll being arranged for winding of textile material thereabout, said apparatus comprising means for applying a variable braking force to said roll, braking program means for controlling said variable braking means for controlling deceleration of said roll in a predetermined relationship of decreasing speed of said roll t elapsed time of actuation of said variable braking means, and means for determining the wound diameter of textile material on said roll, said diameter determining means comprising means for ultrasonic measuring of the radial depth of textile material windings on said roll, said braking program means including means for adjusting said predetermined speed-to-time relationship according to the total mass of said roll and textile material wound thereabout as a function of the determined wound diameter of textile material on said roll.
Apparatus for controlled braking of a textile material engaging roll driven by a drive means, said roll being arranged in a textile warping system for engagement of a plurality of textile materials traveling in side-by-side arrangement, said apparatus comprising means for applying a variably braking force to said roll, and braking program means for controlling said variable braking means for controlling deceleration of said roll in a predetermined relationship of decreasing speed of said roll to elapsed time of actuation of said variable braking means.
Apparatus for controlled braking of a textile material engaging roll driven by a drive means, said roll being arranged for winding of textile material thereabout, said apparatus comprising fluid-actuated means for braking said roll, means for supplying a pressurized operating fluid to said fluid-actuated braking means at a selectively variable pressure for generation of a correspondingly variable braking force by said fluid-actuated braking means, braking program means for controlling said fluid supplying means for controlling the pressure at which the pressurized operating fluid is supplied to said braking means for controlling deceleration of said roll in a predetermined relationship of decreasing speed of said roll to elapsed time of actuation of said braking means, and means for determining the wound diameter of textile material on said roll, said diameter determining means comprising means for ultrasonic measuring of the radial depth of textile material windings on said roll, said braking program means including means for adjusting said predetermined speed-to-time relationship according to the total mass of said roll and textile material wound thereabout as a function of the determined wound diameter of textile material on said roll.
Apparatus for controlled braking of a textile material engaging roll driven by a drive means, said apparatus comprising fluid-actuated means for braking said roll, means for supplying a pressurized operating fluid to said fluid-actuated braking means at a selectively variable pressure for generation of a correspondingly variable braking force by said fluid-actuated braking means, said fluid supplying means comprising adjustable valve means for varying supply of said fluid to said braking means, said valve means being electrically adjustable in relation to varying of a characteristic of an operating electrical supply thereto, and braking program means for controlling said valve means for controlling the pressure at which the pressurized operating fluid is supplied to said braking means for controlling deceleration of said roll in a predetermined relationship of decreasing speed of said roll to elapsed time of actuation of said braking means.
Apparatus for controlled braking of a textile material engaging roll driven by a drive means, said roll being arranged in a textile warping system for engagement of a plurality of textile materials traveling in side-by-side arrangement, said apparatus comprising fluid-actuated means for braking said roll, means for supplying a pressurized operating fluid to said fluid-actuated braking means at a selectively variable pressure for generation of a correspondingly variable braking force by said fluid-actuated braking means, and braking program means for controlling said fluid supplying means for controlling the pressure at which the pressurized operating fluid is supplied to said braking means for controlling deceleration of said roll in a predetermined relationship of decreasing speed of said roll to elapsed time of actuation of said braking means.
Dependencies are inferred from the claim text.