Pneumatic spinning device and spinning machine
A technology of air spinning and rotating air flow, which is applied to spinning machines, open-end spinning machines, and continuous winding spinning machines. Reduced speed and other issues, to achieve the effect of miniaturization
Active Publication Date: 2015-04-22
MURATA MASCH LTD
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Problems solved by technology
[0012] However, if the diameter of the whirling chamber 104 is increased, the whirling radius of the whirling air flow becomes larger, and as a result, the spinning speed of the wound fiber becomes slower, so it cannot meet the demand for increasing the weaving speed.
Considering the installation space of the air spinning device, it is difficult to form a whirling chamber 104 large enough to eliminate the turbulence of the suction air flow.
If the diameter of the whirling chamber 104 is made too large, in order to maintain the swirling flow in the whirling chamber 104, the amount of air supplied to the whirling chamber 104 must be increased, so there is also a problem of poor energy efficiency.
Method used
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[0029] Next, a first embodiment of the present invention will be described with reference to the drawings. figure 1 The illustrated spinning machine (spinning machine) 1 as a spinning machine includes a plurality of spinning units (spinning unit) 2 arranged in parallel. The spinning machine 1 includes: a yarn splicing cart (yarn splicing cart) 3 , a blower box (blower box) 4 , and a motor box (motor box) 5 . The above-mentioned piecing cart 3 can travel in the direction in which the spinning units 2 are arranged.
[0030] Such as figure 1 As shown, each spinning unit 2 includes, as main components, a draft device 7 , an air spinning device 9 , a yarn feeding device 11 , and a winding device 12 . The draft device 7 is provided on the upper portion of the frame 6 of the spinning machine 1 . The air spinning device 9 spins the fiber bundle 8 sent from the draft device 7 to produce a spun yarn 10 . The spun yarn 10 fed from the air spinning device 9 is conveyed by the yarn s...
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A pneumatic spinning device includes a nozzle block (34), a fiber guide section, and a hollow guide shaft (20). The nozzle block (34) is adapted to form a whirling chamber. At least one air injection nozzle (27) is formed in the nozzle block (34) to inject compressed air from a nozzle opening (27a) opening into the whirling chamber to generate a whirling airflow in the whirling chamber. The fiber guide section includes a fiber guide hole connected to the whirling chamber. The hollow guide shaft (20) is structured such that a fiber passage through which the fiber that has been whirled in the whirling chamber passes is formed in an inner portion thereof. In a cross-section cut through a plane passing through an axial line of the hollow guide shaft (20), a portion of a cross-sectional contour of a whirling chamber forming surface (82) located near the fiber guide section is formed as a circular curved section (82a).
Description
[0001] This application is a divisional application of an invention application with an application date of March 1, 2011, an application number of 201110050710.1, and an invention title of "air spinning device and spinning machine". technical field [0002] The present invention mainly relates to an air spinning device, and in particular relates to the shape of a space for generating swirling air in the air spinning device. Background technique [0003] Conventionally, known spinning machines include an air spinning device that twists fibers by using whirling airflow to generate spun yarns. [0004] Such a spinning machine is disclosed in, for example, Japanese Patent Laid-Open No. 2003-1933337. The spinning unit included in the spinning device disclosed in this prior art includes a nozzle block in which air jet holes are formed. [0005] Figure 7 is a schematic cross-sectional view showing the structure of the vicinity of the nozzle block described in this prior art. Su...
Claims
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IPC IPC(8): D01H4/02
CPCD01H4/02D01H1/115
Inventor 森秀茂
Owner MURATA MASCH LTD