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Bobbin drive unit, yarn feeding arrangement and a holder for holding a bobbin

A technology of driving unit and feeding device, which is applied in the directions of transportation and packaging, textile and paper making, thin material processing, etc. It can solve the problems of low capacity and limitation of flat or ribbon yarn, and achieve the effect of fast and easy disassembly

Inactive Publication Date: 2021-05-28
VANDEWIELE SWEDEN AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Currently, the speed at which rapier looms can weave flat or ribbon yarns without twist is limited by the low capacity of the zero-twist yarn feeding devices that exist today

Method used

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  • Bobbin drive unit, yarn feeding arrangement and a holder for holding a bobbin
  • Bobbin drive unit, yarn feeding arrangement and a holder for holding a bobbin
  • Bobbin drive unit, yarn feeding arrangement and a holder for holding a bobbin

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Embodiment Construction

[0029] In the following, a weft thread feeding device, in particular a bobbin drive unit that can be used in such a weft thread feeding device, will be described. In the figures, like reference numerals designate like or corresponding elements throughout the several figures. It will be appreciated that these figures are for illustration only and do not limit the scope of the invention in any way. Furthermore, features from different described embodiments may be combined to meet particular implementation requirements.

[0030] exist figure 1 In , an exemplary weft thread feeding device 12 comprising a motor-driven bobbin 13 is shown. When no spool is placed in the drive unit, the unit for rotating the spool is also referred to herein as the spool drive unit 13 . figure 1 An exemplary yarn feeding device includes a motor-driven coil buffer device 16. The device 12 can be used to feed the yarn with zero twist. In the device 12 a weft thread 40 is unwound tangentially from a ...

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PUM

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Abstract

Described are, among other things,abobbin drive unit (13) comprising a bobbin motor (14) configured to rotate a bobbin (50) around the axis of a bobbin tube (52). The bobbin drive unit comprises a first attachment (53) with a bearing configured to hold a first end of the bobbin tube and a second attachment (54) with a bearing configured to hold a second end of the bobbin tube. The bobbin can then rotate when attached in both ends of the tube. Hereby a bobbin drive unit configured to hold the bobbin in both tube ends of the bobbin is provided. By securing both ends of the bobbin tube, rotation of the bobbin can take place at a high speed without creating vibrations or oscillation to the bobbin drive or surrounding components that would otherwise risk interfering with sensors or deteriorate components and potentially reduce the life time of components of a yarn feeding arrangement.

Description

technical field [0001] The present disclosure relates to a spool drive unit and devices related to the spool drive unit. Background technique [0002] The general development trend in weaving is the increasing speed of looms. Another trend is to increase the use of flat or ribbon shaped yarns, which should be inserted without any twisting. Examples of such yarns are polypropylene tapes, carbon fiber tapes, aramid and glass fiber tapes. Currently, the speed at which rapier looms can weave flat or ribbon yarns without twist is limited by the low capacity of the zero-twist yarn feeding devices that exist today. [0003] Existing systems for feeding yarn without twist (zero twist) usually have an unwind motor controlled by measuring the length of a large loop buffer located between the bobbin and the loom. The coil can be free-hanging, or have mechanical means to form the coil by gravity, pressurized air, or by negative pressure (aspirator). Existing systems can be considere...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D03D47/34B65H59/38D03D47/36
CPCB65H2701/31B65H59/387B65H51/20B65H49/36B65H49/34D02H1/00D03D47/345
Inventor P·约瑟夫松B·约翰松T·彼得森
Owner VANDEWIELE SWEDEN AB