Full automatic leasing machine for a warp beam containing warps of different colors

A fully automatic leasing machine for a warp beam containing warps of different colors, comprising:

• a warp grouping mechanism located at a position downstream of said warp beam in the processing direction of said warps, and adapted for grouping said warps into warp sheets of different colors and releasably holding ends of said warps in said warp sheets, said warp sheets being disposed in substantially parallel planes which are spaced apart and extend in the width direction of said machine;
• a number of warp dividing units equal in number to the number of warp sheets, each dividing unit being associated with a respective warp sheet and being movable along its associated warp sheet in said width direction of said machine;
• a respective warp dividing unit driving mechanism for each said warp dividing unit, each said warp dividing unit driving mechanism including a main shaft driven for continuous rotation, means for converting said rotation of said main shaft into movement of its respective said warp dividing unit along its said associated warp sheet, and means for selectively disabling said converting means;
• a respective warp separating mechanism arranged on each said warp dividing unit, and including first and second cooperating needles for separating individual warps from said associated warp sheet, first operating means for operating said needles, and a first single revolution clutch assembly which when energized operationally couples said operating means to said main shaft of said warp dividing unit driving mechanism;
• a respective warp flipping mechanism accompanying each said warp separating mechanism, and including a warp flipping carrier for flipping said each warp separated from said associated warp sheet, second operating means for operating said warp flipping carrier, and a second single revolution clutch assembly which when energized operationally couples said second operating means to said main shaft of said warp dividing unit driving mechanism;
• a program control mechanism for energizing said first and second single revolution clutch assemblies on each said warp dividing unit in accordance with a desired stripe design;
• a warp leasing unit arranged on the downstream side of said warp dividing units in an arrangement movable in the width direction of said machine;
• a warp passing mechanism arranged on said warp leasing unit, and including a crank shaft driven for constant rotation and a hook which is operationally coupled to said crank shaft and reciprocates horizontally between said warp leasing unit and said warp dividing units in order to pass said each warp which is engaged by a said first warp flipping mechanism through a gap between a pair of warp leasing cords stretched in the width direction of said machine;
• a leasing cord shifting mechanism arranged on said warp leasing unit, and including a pair of lifter rods which are operationally coupled to said crank shaft of said warp passing mechanism and to said warp leasing cords in order to alternately locate said warp leasing cords at different respective levels every time one of said warps has been passed through said gap;
• a second warp flipping mechanism arranged on said warp leasing unit, and including a flipping bar operationally coupled to said crank shaft of said warp passing mechanism;
• a warp end fixing mechanism arranged on said warp leasing unit including a pair of rolls of bonding tape which, as said leasing unit travels in the width direction of said machine, are delivered from said rolls and fixedly hold therebetween each said warp passed through said gap, said flipping bar flipping each said warp passed through said gap towards said warp end fixing mechanism;
• a warp leasing unit driving mechanism accompanying said warp leasing unit, and including means for converting rotation of said crank shaft of said warp passing mechanism into movement of said warp leasing unit in said width direction of said machine;
• and
• a synchronized driving mechanism including a photoelectric sensor for detecting movement of any said warp dividing unit in said width direction of said machine, and means connected to said photoelectric sensor for disabling said converting means of said warp leasing unit dividing mechanism when no warp dividing unit moves in said width direction of said machine.