Bearing Structure of a Weaving Machine

The weaving machines are composed of two side frames in cast iron or steel, which are connected each other by cross members so as to create a firm bearing structure which can limit the vibrations and offer a good stability.

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Bearing structure of a weaving machine

The weaving machines are composed of two side frames in cast iron or steel, which are connected each other by cross members so as to create a firm bearing structure which can limit the vibrations and offer a good stability.

The machine members are covered by easily removable casings which protect them from dust and offer a passive safety to the operators.

The manufacturers have focussed their attention in last years on the study and on the analysis of the machine behavior at high running speeds; this permitted to optimize the movements and the balancing of the main members of the loom, as well as to reduce the vibrations transmitted to the floor and to the structure and consequently the noise.

Figure presents part of a bearing structure of a weaving machine; you can note the two side frames and the basis on which the dobby with the linkage for the heald control is applied. Figure shows instead the full structure of a weaving machine with various already installed components.

Skeleton of a weaving machine
  
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Warp let-off and fabric take-up
Weaving machines used for manufacturing terry fabrics, double velvets and narrow fabrics are categorized in special weaving machines. Some of the examples of such machines are terry weaving machines, double velvet weaving machines, ribbon weaving machines etc.Warp let-off system has a frequency converter, which is intended for letting off from warp beam or feeding unit. The drive is mounted either on the weaving machine or on a frame positioned behind the weaving machine. The let-off starts with a machine running signal; the speed of the let-off motor is controlled by a proximity switch mounted on the whip roller system and an internal speed memory. An alarm signal switches the weaving machine off in case of over tightened warp or any other error.