Terry loom having programmable pile forming elements

A terry loom comprising

• at least one pile-forming element for moving in a path of a warp yarn to form a loop in the warp yarn;
• a servomotor;
• a transmission coupling said servomotor to said element for selective movement of said element;
• and
• a circuit arrangement having a control connected to said servomotor for driving said servomotor in programmed manner to effect movement of said element and a control input connected to said control to deliver programmable signals to said control for selectively actuating said servomotor independently for individual picks.

A terry loom comprising

• a sley mounted for movement between a retracted position and a beat-up position;
• a transmission connected with said sley for moving said sley between said positions, said transmission including an articulated lever movable into a deflected position to shorten the movement of said sley from said retracted position towards said beat-up position;
• a servomotor;
• a guide connected to said lever and coupled with said servomotor for movement between a pair of terminal positions, said guide being movable into one of said terminal positions to move said lever into said deflected position;
• and
• a control and circuit arrangement electrically connected to said servomotor for triggering said servomotor in a programmable manner to provide variable terry patterns.

A terry loom comprising:

• a sley mounted for movement between a retracted position an a beat-up position;
• a transmission connected with said sley for moving said sley between said positions, said transmission including a cam, a rocker movable on said cam, a slide block articulated on said rocker and a pivotally mounted link secured to said sley and having a guide slidably receiving said block therein;
• a servomotor coupled with said cam for movement between a pair of terminal positions to vary pivoting of said link;
• and
• a control and circuit arrangement electrically connected to said servomotor for triggering said servomotor in a programmable manner to provide variable terry patterns.

A terry loom comprising:

• a sley mounted for movement between a retracted position and a beat-up position;
• a planetary transmission having a rotatable annulus defining a sun gear, a plurality of planetary gears in meshing relation with said sun gear, a carrier having said planetary gears rotatably mounted thereon and a sun wheel connected to said sley and disposed concentrically of said sun gear in meshing relation with said planetary gears;
• and
• a servomotor coupled with said carrier to selectively move said carrier relative to said sun wheel to vary the position of said sley from said retracted position.

A terry loom comprising

• a pile vibrator roll having a rotatably mounted top roll and a tube connected in parallel to said top roll for passage of pile warp yarns thereover;
• a servomotor;
• a transmission coupling said servomotor to said top roll for selectively rotating said top roll to vary the position of said tube;
• and
• a control and circuit arrangement electrically connected to said servomotor for triggering said servomotor in a programmable manner to provide variable terry patterns.

A terry loom comprising:

• a whip roll for passage of warp yarns thereover;
• a first lever mounting said whip roll thereon;
• a first servomotor connected to said lever for selectively pivoting said lever with said whip roll thereon;
• a breast beam for passage of the warp yarns thereover;
• a second lever mounting said breast beam thereon;
• and
• a second servomotor for selectively pivoting said second lever with said breast beam thereon.

A terry loom comprising

• a ground warp beam for supplying ground warp yarns into a shed;
• a sley having a reed for movement within the shed to form a cloth of the warp yarns;
• a main drive shaft;
• a sley control for pivotally moving said sley between a retracted position and a full beat-up position;
• a transmission connected between and to said drive shaft and said sley control for driving of said sley control from said main drive shaft to move said sley, said transmission having means for adjusting the movement of said sley from said retracted position towards said beat-up position;
• a servomotor connected to said means in said transmission for selectively actuating said means to adjust the movement of said sley from said retracted position into a partial beat-up position spaced from said full beat up position;
• and
• a control and circuit arrangement electrically connected to said servomotor for triggering said servomotor in a programmable manner to provide variable terry patterns.

A terry loom comprising

• a plurality of pile-forming elements including a whip roll for ground warp yarns and a breast beam for cloth;
• a coupling element connecting said breast beam with said whip roll for simultaneous movement relative to a reed beating-up zone to vary the pile height in proportion thereto;
• a servomotor connected to said coupling element for selectively moving said coupling element;
• and
• a control and circuit arrangement electrically connected to said servomotor for triggering said servomotor in a programmable manner to provide variable terry patterns.