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The Doffing Machines are used for replacing the bobbin with a yarn winding tube. These machines are responsible for appropriate quality of yarn; a uniform layer of fibres must be produced. The biggest problems with the efficiency and quality of the taking-off process are encountered when applied to the wool and wool-like fibres taken off from the doffer's surface. There are high demands of the modern construction of doffing comb devices, connected with efficiency and quality of work. This is a compromise between the expected accuracy of simulations and its calculation efficiency.
In the process of taking the web off the doffer, an aiding factor is offen used. These are working with two positions. The first position adjacent the yarn length stretched between a spinning unit and the bobbin, and a second position at which a pusher brings the yarn in contact with the surface of said winding tube. The predominant group constitutes doffing devices with a mechanical drive. Carding units of doffing machine are frequently used in places with poor work conditions. Due to the small size it is advisable to aim to reduce the amplitudes of harmful vibrations.
Products features:
• Roller devices.
• Multi-comb devices.
• Doffing devices.
• Simple structure, low price and reliability.
• Easy operation, simple for maintenance, and nice looking appearance of shapes.
• Provide optimum retention
• Avoiding noise.
• Excellent configuration from optimized design.
In the doffing machine the bobbin handling apparatus is conveniently mounted that is sorting bobbins of one end orientation from the other and to reorient bobbins of the one orientation to the other for presentation to the doffing machine of bobbins of a single orientation.
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