Abstract A method and apparatus for drawing and texturizing yarn in a continuous operation is described. Useful in a conventional drawing and texturizing operation wherein the yarn is passed through a drawing zone, a heating zone, and a false twisting zone to obtain drawn yarn having stretch characteristics. The improvement of this invention provides feeding and drawing means in the drawing zone which are synchronized to be engaged or disengaged simultaneously. This may be accomplished through the use of a connecting shaft and cam system which causes draw rolls and feed rolls to be simultaneously engaged and disengaged. This unique system allows an operator to ''''thread up'''' the entire apparatus prior to simultaneously initiating the operation.
In a machine for treating yarn including disengageable feed rolls, draw rolls and take-up rolls, and a heating device and a false twisting device the improvement comprising disengageable feed roll means for accepting filament yarn from a source of supply; means for driving said draw rolls at a speed substantially faster than said feed rolls means, and means for substantially simultaneously engaging said feed roll means and said driving means comprising a pedal for engaging said draw rolls; a pivoted bracket member for engaging said feed roll means, and a mechanical coupling between said pedal and said bracket member.
Claim 2
Dependent Claim
99 words
In a machine for treating yarn including disengageable feed rolls, draw rolls and take-up rolls, and a heating device and a false twisting device the improvement comprising disengageable feed roll means for accepting filament yarn from a source of supply; means for driving said draw rolls at a speed substantially faster than said feed rolls means, and means for substantially simultaneously engaging said feed roll means and said driving means comprising a pedal for engaging said draw rolls; a pivoted bracket member for engaging said feed roll means, and a mechanical coupling between said pedal and said bracket member.
Claim 3
Dependent Claim
108 words
The machine of claim 1 wherein said mechanical coupling between said pedal and said bracket member comprises a rocker arm conneCted to and activated by the movement of said pedal to engage or disengage said draw rolls; a bracket connected to and activated by the movement of said rocker arm; a shaft connected to and activated by the movement of said bracket; a cam attached to and activated by the movement of said shaft, and a roller riding on said cam and connected to said bracket member and activating said bracket member to engage or disengage said feed roll means in response to the movement of said pedal.