Method and device for automatic spinning repiece

A spinning-on device and automatic technology, which are applied in the directions of piecing devices, free-end spinning machines, spinning machines, etc., can solve the problems of speeding up the surface fluffing of free yarn ends, and achieve good spinning-off effect, simple structure and ingenious method. Effect

Inactive Publication Date: 2004-04-14
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

[0038] 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.

[0039] See Figure 4 , 6 as shown,

[0040] A method for automatic spinning yarn, which is completed by the following steps:

[0041] 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;

[0042] 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;

[0043] 3) Detect and calculate whether the length value of the low-speed spinning meets the predetermined value A;

[0044] 4) When the aforementioned low-speed spinning satisfies the value A, and the drago...

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Abstract

The present invention relates to an automatic spinning new end forming method and its equipment. The roving machine utilizes the coder positioned at the drafting portion position to detect the full-yarn length when the bobbin can be fulled, and makes the roving machine spin to a certain length in low speed, after the roving is spun to a certain length, makes the roving machine operate in low speed, at the moment makes the spindle rail stop lifting movement and makes the yarn be in said height position, winds 2-3 turns of halching and makes the spindle rail be quickly lowered to form large thread pitch wind so as to make the roving do not take-off in its transportation process; changes the speed ratio of flywer and roller so as to reduce roving twist, and obtain undertwisted roving, and when the ultralowering of spindle rail is made to place, the yarn is stretch-broken to produce fuzzy fibre whose length can be suitable for secondary automatic spinning new end formation.

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 this field to solve the afo...

Claims

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Application Information

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