Linear servo control bar-crossing system of warp knitting machine

Abstract

The invention relates to a textile machine, specifically a straight servo control guide bar shogging system of warp knitting machine. The straight servo control guide bar shogging system of warp knitting machine in the invention uses fieldbus technology, the system architecture is three-level network distributed control system based on CAN bus, among them, the first level is management layer, the central controller is IPC machine used for inputting pattern schema, controlling production, proofing and detecting pattern schema data, network communication; the second level is control layer which is the separated independent control unit composed by embedded microcontroller, it is used for receiving and storing the pattern schema parameters relative with rack knitting and transmitted by IPC and completing parameter proofing and detecting associated with IPC; the third level is on-site layer which includes servo driver, cylindrical straight servo motor, linking devices and rack, it can drive guide bar based on the order signals transmitted from control layer. The invention has the characteristics of accurate control, convenient and fast pattern schema replacement and high speed of pattern schema replacement, it can produce products with various pattern schemas and increase warp knitting production efficiency greatly.

Description

technical field [0001] The invention relates to a textile machine, in particular to a linear servo control bar traverse system of a warp knitting machine. Background technique [0002] At present, the trend of mechanical product development is mechatronics technology, and mechatronics has also become the development trend of warp knitting equipment. Traditional high-speed warp knitting machines are mostly controlled by chain blocks and faceplates, which have restrictions on pattern circulation and pattern structure, and it is inconvenient to change patterns. This is obviously far from being able to meet the needs of modern social life with many varieties, small batches, and fast-paced fashion. [0003] The existing similar products in China are all secondary control, and use rotary servo motors as drive components. That is, the ordinary rotary AC servo motor is controlled by PLC or a special control card, and then the rotation of the AC servo motor is converted into the la...

AI Technical Summary

Problems solved by technology

The common problems of these systems are: (1) Due to the use of PLC control, the on-site control is better, but overall the man-machine dialogue is not friendly enough, the size of pattern data is limited, the network of production management data and fault diagnosis is lacking, etc.; (2) Due to the use of a rotary AC servo motor as the drive element, the cost has been reduced, but: on the one hand, due to its low starting frequency, the production speed of the warp knitting machine is limited; on the other hand, due to the need for a certain mechanism to rotate The motion is converted into linear motion, which not only reduces the motion accuracy, but also reduces the transmission efficiency

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