The Mechanism Of An Automatic Pirn Change Weaving Loom

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Slide 1

As the name suggests, automatic pirn change weaving looms are those looms that re designed to automatically change the prins without any required manual tasks. These weaving looms are used to weave various types of fabrics in different garment mills, and are available in different specifications to suit various application requirements. They offer smooth operation, long functional life, and minimum maintenance, all in a very compact design. Furthermore, they have many other distinctive features, such as – Automatic operation At the time of weft pirn changing, the weft end of the new pirn is drawn out penetrating through the weft tensions on the shuttle. Thus, the entire process is a man-less operation with no know on the weft yarn, causing no issues when the weft pirn is changed. Shuttles and bobbins Standard shuttles and weft pirn bobbins are used for all kinds of yarns, which make weaving very efficient and of high quality. Faultless weaving The remnant weft yarns are disposed, which doesn’t make them appear on the woven cloth, which in turn results in faultless weaving. Furthermore, the interval time for cop changing is only about 9.5 seconds for 60 Hz. Multi coloured wefts

Slide 2

Certain looms have 1×1, 2×1, and 4×1 shuttle boxes, which enables multicoloured weft yarns to be woven easily. Micro-computer control cam mechanism The cam control mechanism in the weaving loom enables effective automation, and is also easy to operate and maintain. The mechanism of these looms In an automatic pirn change weaving loom, the yarn extending from the cloth to the shuttle is cut near the shuttle, and the runout pirn is removed from the shuttle, thus unthreading the shuttle eye. Then, the new pirn is inserted into the shuttle with the end of the yarn held in a clamp. When the shuttle makes a first stroke with the pirn, the weft yarn is automatically drawn into the shuttle eye. Then, the old and new ends of the yarn are cut off by selvedge cutters located adjacent to the cloth. A transfer head is preferably provided for extracting the almost runout pirn from the shuttle and inserting the full pirn. This transfer head is adapted to move between two angularly space apart fixed positions, with one positioned for gripping a pirn in the shuttle, and the second positioned to be stationary beneath the transfer head. The joint comprises of a knotter that is adapted to receive at least a portion of the wire extending from the almost runout pirn to the shuttle eye, where the pirn is moved by the transfer head. It is also designed to receive a portion of the wire extending from a full pirn, when this pirn is moved by the transfer head. The stripper draws off the remaining wire from the runout pirn when the latter has been extracted from the shuttle and placed in the second position. To get the best quality pirns for using for fabric weaving, you can approach Trim Engineering Services, the leading pirn manufacturers in India, who not only supply their products to India, but also to countries like France, Italy, Spain, Germany, America, Brazil, Romania, Sri Lanka, Thailand, Malaysia, South Africa, Indonesia, Poland, and Israel; thus bringing them a global presence. Stay social with us on: Facebook, Twitter, Google+, LinkedIn

Summary: An automatic pirn change weaving loom is one that automatically changes and replaces pirns with no manual operation required. How this machine operates is explained in this blog.

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