Method for achieving precise centring by means of simultaneous movement of multiple chain plate conveyors

Abstract

The invention discloses a method for achieving precise centring by means of simultaneous movement of multiple chain plate conveyors. A scanner is mounted above the chain plate conveyor at an edge folding station, paper roll data are read by scanning paper roll bar code information and transmitted to the chain plate conveyors, and the paper roll data of a paper roll are provided; and the pulse number, converted into an encoder value, of the paper roll is calculated through paper roll bar code width information. An encoder is mounted at the tail of a motor of the corresponding chain plate conveyor, the motor runs to drive the encoder to run, and the rotating value pulse number of the encoder can be directly read. A frequency converter is mounted in an electrical control cabinet and is used for adjusting chain plate speed values and synchronously adjusting the accelerated speed and the decelerated speed. A system PLC receives the feedback pulse number in real time, the running and speed of the motor are controlled and driven through the frequency converter, and precise centring is achieved.

Description

technical field [0001] The invention belongs to a method for accurately centering multiple chain-plate conveyors moving simultaneously. Background technique [0002] In intelligent logistics, it is often encountered that multiple chain conveyors need to move at the same time for precise alignment. There are generally three alignment methods used in the prior art: [0003] The first one is encoder + photoelectric switch. This method is a commonly used basic centering method. It is better to use on equipment that does not require a particularly precise centering. After the tail light switch is detected, the light switch is turned on, and the encoder starts counting to calculate the width of the paper roll. Then measure the distance from the tail to the middle position, and calculate and set the deceleration distance to achieve centering. This method can be used for equipment that does not require high alignment, and is often used in stretch film packaging machines, but it is...

AI Technical Summary

Problems solved by technology

This method belongs to the commonly used multi-station paper roll centering method, which is accurate in centering and high in efficiency. It is commonly used in multi-station packaging machines, but it requires high space for the equipment and poor flexibility.

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