Application of stepper servo motor system in labeling machine

Introduction to PCB labeling machine

Fully automatic labeling machine is a device that can attach a roll of paper label to a PCB, product or specified package.

The back of the label is provided with viscose and arranged regularly on the smooth bottom paper. The stripping mechanism on the labeling machine can peel it off automatically.

Automatic labeling machine can complete PCB surface paste, PCB original surface paste, other plane paste, packaging single or multiple surface paste, cylinder paste, local cover or full cover cylinder paste, depression and corner paste and other operations, now SMT industry has also begun to replace manual.

Run profile

The automatic labeling machine locates the INCOMING PCB or product from the previous link on the assembly line, and confirms its coordinates by visual means. After taking materials, the suction head of the automatic labeling machine will paste the label on the product according to the internal algorithm of the machine.

Details of the use of Step servo system

Installation position and function: The step servo system is mainly used for z-axis movement and R-axis rotation.

The Z-axis is driven by 42C series motors, and the synchronous wheel structure takes the R-axis vertically up and down.

The R axis is executed by 28B series motors, mainly used for fine tuning labels to ensure the accuracy of labeling.

Zhichuang stepper servo driver parameter setting is simple, without tedious adjustment can keep the best effect in the full range, after reaching the ideal target position, the motor has no position fluctuation and high precision, which is very suitable for labeling this kind of application.

Compared with the open-loop stepping system, the cost is low, but it cannot meet the customer's requirement.

The precision of open-loop stepping motor is determined by the step Angle of the motor itself, so the precision is relatively low.

High precision encoder is adopted in the stepping servo system of Zhichuang, with the precision up to 10000 pulses/coils.

Moreover, as the speed rises, the torque decreases rapidly, which is easy to cause motor out-of-step and other phenomena, thus causing equipment operation failure or failing to meet the operation requirements of the system.

Zhichuang stepper servo system adopts motor semi-closed loop design, which can timely find out motor out of step, produce alarm notification and timely find equipment fault.