Spinning machine, take-up device, and textile machine
A winding device and spinning machine technology, which is applied in the fields of spinning machines, winding devices and fiber machinery, can solve the problems of detecting periodic abnormalities, long-period coarse details, and insufficient detection accuracy of coarse detail detectors, and achieves Effect of improved detection accuracy
Inactive Publication Date: 2014-05-28
MURATA MASCH LTD
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Problems solved by technology
[0010] In the technology described in the above-mentioned Patent Document 1, if the detection accuracy of the coarse detail detector itself is insufficient, it may not be possible to detect periodic coarse detail with a relatively long period.
The technique described in Patent Document 2 monitors whether there is a change in the load torque of the motor, but it is not a technique for detecting periodic abnormalities
Method used
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Embodiment Construction
[0041] A spinning frame (spinning machine) according to an embodiment of the present invention will be described with reference to the drawings. In this specification, "upstream" and "downstream" mean upstream and downstream in the yarn running direction at the time of spinning.
[0042] figure 1 and figure 2 The illustrated spinning machine 1 includes a plurality of spinning units 2 arranged side by side. The spinning frame 1 is provided with a piecing cart 3 provided to move freely along the direction in which the spinning units 2 are arranged, a power box 5, a central control unit (not shown) in charge of controlling the spinning machine 1, and a control unit in charge of controlling the spinning unit 2. Unit controller 60 (refer to image 3 and Figure 4 ).
[0043]The central control unit is arranged inside the power box 5, for example. The central control unit is electrically connected to the plurality of unit controllers 60 and collectively controls the plurality...
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Provided are a spinning machine, take-up device, and textile machine in which periodic abnormalities in rotating bodies can be detected and the detection precision improved. The constitution is such that either or both of torque and rotational speed for a motor that drives a rotating body for drafts or take-up is monitored, and on the basis of the results of this monitoring, the presence or absence of periodic abnormalities in this rotating body is determined. For example, when a fiber bundle moving with the rotation of the rotating body has an abnormality such as the thickness varying periodically, the load torque operating in the motor varies or the rotational speed of the motor varies. Therefore, by monitoring either or both of the motor torque and rotational speed, the presence or absence of a periodic abnormality in the rotating body can be determined, and a periodic abnormality in a fiber bundle drafted or taken up using the rotating body can be detected.
Description
technical field [0001] The invention relates to a spinning machine, a winding device and a fiber machine. Background technique [0002] Conventionally, a textile machine described in Patent Document 1 is known as a technique in this field. The technology described in Patent Document 1 digitizes the electrical signal of the thickness and detail of the yarn acquired from the yarn thickness and detail detector (such as a yarn clearer) installed in a textile machine such as a spinning frame, and detects the yarn by analyzing the digitized signal with a computer. Coarse details. [0003] Furthermore, the technique described in Patent Document 2 is known as a method for detecting an abnormality in a drafting device of a spinning machine. In this technique, the load torque acting on the drive motor driving the draft roller is monitored for any change, and if the load torque changes by a predetermined ratio or more, it is determined to be abnormal, and the operation of the draft d...
Claims
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IPC IPC(8): D01H13/14D01H5/38D01H13/32
CPCD01H13/14D01H13/32D01H5/38B65H54/42B65H63/04B65H2701/31
Inventor 一阶朋之
Owner MURATA MASCH LTD