Method and apparatus for transmitting driving power in drafting device of spinning frame
AssigneeMurata Kikai Kabushiki Kaisha
InventorsNobunori Kubota, Hisaaki Kato, Teruo Nakayama
Life of this patent
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Abstract
A method and apparatus for transmitting a driving power in a drafting device of a spinning frame. In the drafting device comprising a pair of back rollers, middle rollers and front rollers arranged in order, the driving power for the middle rollers is transmitted through a transmission passage different from a transmission passage for transmitting the driving power for the back rollers and front rollers.
Claims12
A method for transmitting a driving power in a drafting device of a spinning frame, said drafting device comprising a pair of top and bottom back rollers rotated positively in close contact with each other along a yarn passage, a pair of top and bottom middle rollers provided with an apron and rotated positively in close contact with each other along the yarn passage and a pair of top and bottom front rollers rotated positively in close contact with each other along the yarn passage and a pair of top and bottom front rollers rotated positively in close contact with each other along the yarn passage, characterized in that the driving power for the back and front rollers is transmitted through the same transmission passage and in that the driving power for the middle rollers is transmitted through a transmission passage different from the transmission passage for transmitting the driving power for the back rollers and front rollers.
An apparatus for transmitting a driving power in a drafting device of a spinning frame, said drafting device comprising a pair of top and bottom back rollers rotated positively in close contact with each other along a yarn passage, a pair of top and bottom middle rollers provided with an apron and rotated positively in close contact with each other along the yarn passage and a pair of top and bottom front rollers rotated positively in close contact with each other along the yarn passage, in which supporting shafts for supporting the top back roller, top middle roller and top front roller, respectively, are gripped dismountably by side walls of bearings which have a substantially U-figured section, spring ends and springs having fixing pins as fulcrum, said springs being spread on the fixing pin mounted one end of each bearing, through reduction gears rotation is transmitted to drive the driving gear connected to the bottom front roller and is transmitted to drive the driving gear connected to the bottom back roller through separate reduction gears rotation is transmitted to drive the driving gear connected to the bottom middle roller, and the top back roller, top middle roller and top front roller are arranged to be rotated at the contact position with the bottom back roller, bottom middle roller and bottom front roller by the locking action of a fixing lever to be pressed by contact pressing force.
Structure for transmitting driving power in a drafting device of a spinning frame which drafting device includes a pair of top and bottom back rollers rotated positively in close contact with each other along a yarn passage, a pair of top and bottom middle rollers provided with an apron and rotated positively in close contact with each other along the yarn passage and a pair of top and bottom front rollers rotated positively in close contact with each other along the yarn passage comprising a single transmission passage for driving power to the back and front rollers and a separate transmission passage for driving power for the middle rollers.
Dependencies are inferred from the claim text.