Flat knitting machine and handpiece positioning method thereof
A positioning method and machine head technology, which are applied in the field of knitting machinery control, can solve the problems of high requirements for equipment assembly accuracy and inaccurate positioning of the machine head, and achieve the effect of accurate and reliable real-time position information.
Active Publication Date: 2016-06-08
FUJIAN RAYNEN TECH
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Problems solved by technology
[0005] The embodiment of the present invention provides a flat knitting machine and its head positioning method to solve the technical problems in the prior art that the head positioning is inaccurate and the head positioning method requires high equipment assembly accuracy
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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[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0030] see figure 1 , figure 1 It is a flow chart of the first embodiment of the head positioning method of the flat knitting machine of the present invention. In this embodiment, the flat knitting machine includes an actuator, a needle bed, and a head that moves relative to the needle bed, and the method for positioning the head of the flat knitting machine includes the following steps:
[0031] Step S11: Detect the real-time position inform...
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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The invention discloses a flat knitting machine handpiece positioning method. A flat knitting machine comprises a needle bed, a knitting needle sequence, a handpiece, a knitting needle read head and an encoder, in the process of moving the handpiece relative to the needle bed, the knitting needle read head sequentially recognizes knitting needles and outputs knitting needle detection pulses each time the knitting needle read head recognizes the knitting needles, and the encoder is used for conducting primary positioning on the handpiece relative to the needle bed and outputs encoding signals. The method includes the steps that each time the knitting needle read head outputs the knitting needle detection pulses, and the serial number, in the knitting needle sequence, of the current knitting needle recognized by the knitting needle read head is judged according to the coded signals of the encoder at current moment; secondary positioning is conducted according to the serial number, in the knitting needle sequence, of the current knitting needle and the position of the knitting needle detection pulses on the handpiece relative to the needle bed. The invention further discloses the flat knitting machine. By means of the mode, the current knitting needle which the handpiece passes through is detected to obtain real-time position information of the handpiece relative to the needle bed through more accurate and reliable positioning.
Description
technical field [0001] The invention relates to the technical field of knitting machinery control, in particular to a flat knitting machine and a head positioning method thereof. Background technique [0002] The positioning of the traditional multi-stage needle selection computerized flat knitting machine head is mostly realized by the encoder of the main servo motor, but this method produces a large error due to multiple mechanical transmissions and the gap between the transmission belt and the gear, etc. It cannot meet the precise and timely requirements of single-stage needle selection. [0003] For example, one method in the prior art is to use a servo encoder to achieve positioning. The disadvantage of this method is that the servo encoder reflects the distance traveled by the shaft end of the motor. The flexibility of the transmission mechanism such as the motor belt and the head belt and the gap (return difference) of the transmission mechanism cause inaccurate posi...
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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Login to View More IPC IPC(8): D04B7/00D04B15/70D04B15/78
CPCD04B7/00D04B15/70D04B15/78
Inventor 魏永祥许东锦
Owner FUJIAN RAYNEN TECH