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The winding step can occupy an area of up to 60 degree of the coil circumference for round coil bobbins and takes one side of rectangular coil bobbins. The area of the winding step is dependent on the wire gauge and coil bobbin geometry.
Toilet-tissue winders are able to change over at running speed, while paper and board winders need to stop the winding process in order to cut the sheet and glue the paper on to a new wind-up core. Top-line winders introduce the paper core through a maintenance pit downstairs, with web interruption time as low as 15 seconds.
A bobbin or spool is a spindle or cylinder, with or without flanges, on which yarn, thread, wire, tape or film is wound. [1] Bobbins are typically found in industrial textile machinery, [2] as well as in sewing machines, fishing reels, tape measures, film rolls, cassette tapes, within electronic and electrical equipment, and for various other ...
In a sewing thread, the treads are doubled in two phases. Two or three strands are twisted together then three of these threads are twisted together, to form a six or nine cord. [9] The spun yarn is wound onto a bobbin using a doubling winding machine, and two or more of these bobbins are placed on doubling frame (doubling winding machine). The ...
1851 by Allen B. Wilson [8] Figures from Wilson's patent 9041, showing rotary hook and bobbin: Rotary hook machines hold their bobbin stationary, and continuously rotate the thread hook around it. The design was popularized in the White Sewing Machine Company's 'Family Rotary' sewing machine [9] and Singer's models 95 and 115. [10]
The machine stops. The thread guides are hinged up. The completed bobbin coils (yarn packages) are removed from the spindles. The new bobbin tube is placed on the spindle trapping the thread between it and the cup in the wharf of the spindle, the thread guides are lowered and the machine restarted. Now all the processes are done automatically.
In 1700, the Italians were the most technologically advanced throwsters in Europe and had developed two machines capable of winding the silk onto bobbins while putting a twist in the thread. They called the throwing machine, a filatoio and the doubler a torcitoio. There is an illustration of a circular hand-powered throwing machine drawn in ...
Winding machine, a machine for wrapping string, twine, cord, thread, yarn, rope, wire, ribbon, tape, etc. onto a spool, bobbin, reel, etc. Winder or motor drive, a device for automatically (re-) winding film in a manual camera; Winder or hoist, used in underground mining; A device for transferring energy into a mechanical storage such as ...
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