Method and device for automatic spinning repiece

A spinning device and automatic technology, which is applied to the piecing device, the free end spinning machine, the spinning machine, etc., can solve the problems of speeding up the surface fluffing of the free yarn end, and achieve good spinning effect, simple structure and ingenious method. Effect

Inactive Publication Date: 2006-11-22
TIANJIN HONGDA TEXTILE MACHINERY
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AI Technical Summary

Problems solved by technology

The fluffing of the surface of the free yarn end can be accelerated if the yarn end is whipped against a rib-shaped protrusion or a rough surface, which is not applicable to the automatic doffing device of the roving frame; Fenghe, Japan Although Industrial Co., Ltd.'s patent No. 94104988.4 in China "Method and device for winding roving in roving frame" involves related technologies, it cannot solve the aforementioned technical problems

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Method and device for automatic spinning repiece
  • Method and device for automatic spinning repiece
  • Method and device for automatic spinning repiece

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Embodiment Construction

[0037] The specific implementation, structure, features and effects provided by the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0038] See Figure 1-9 Shown, a kind of method for automatic spinning yarn is finished by following steps:

[0039] 1) Detect and calculate the remaining roving amount X between the current length value Y of the spinning yarn and the full bobbin length value L, and the predetermined full bobbin length value L-current length value Y=remaining roving amount X;

[0040] 2) When the amount of remaining roving satisfies the X value, the roving frame operates at a reduced speed, and the spinning length at low speed reaches the predetermined value A;

[0041] 3) Detect and calculate whether the length value of the low-speed spinning meets the predetermined value A;

[0042] 4) When the aforementioned low-speed spinning satisfies the value A, and the dragon tendon is in the m...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

A method and device for automatic spinning yarn spinning. The roving frame detects the length of the full yarn when the bobbin is about to be full through the encoder at the drafting part, so that the roving frame spins at a low speed to a certain length. When the roving reaches a certain length Finally, let the roving frame run at a low speed. At this time, the dragon tendon stops the lifting movement so that the yarn is at this height, and wraps the body yarn 2-3 times, and then the dragon tendon is quickly lowered to form a large pitch winding, so that the roving is in the transportation of the roving. No yarn falling off during the process; change the speed ratio of the flyer and the roller to reduce the twist of the roving, and obtain a low-twist roving at the end of the roving that is about 20% lower than the normal twist. Its length is adapted to the second automatic spinning head, and the pile is more adherent; by setting a special width of pile on the bobbin, the hairiness at the broken end of the yarn can be better attached to the bobbin, The invention has the advantages of simple structure, ingenious method, good spinning effect and easy industrial realization.

Description

technical field [0001] The invention belongs to the field of roving frames, and relates to a device for automatic doffing equipment, in particular to a method and a device for spinning up a roving. Background technique [0002] At present, the doffing method used by many domestic textile factories is still manual doffing. The operator manually breaks the yarn to take out the full yarn. head. Now the doffing equipment of the roving frame has developed a variety of automatic operations, among which the automatic spinning involves yarn end processing technology. [0003] Automatic doffing, the treatment of both ends of the yarn after the roving is broken is the key link. After the yarn is disconnected, the disconnected yarn end must be processed. On the one hand, it will create conditions for the next automatic spinning, on the other hand, it must meet the requirements of the roving. The industry is constantly pursuing better technical solutions in th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01H7/50D01H1/36D01H4/48D01H15/00
Inventor 陈谷人久军陈峰王坚杨长青
Owner TIANJIN HONGDA TEXTILE MACHINERY
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