Curved surface coating device for curved surface display panel and glue coating apparatus

A glue coating apparatus, comprising a curved surface coating device, wherein the curved surface coating device comprises:

• a bracket having a first end and a second end;
• a glue coating portion connected with the first end of the bracket;
• a rotation shaft connected between the first end and the second end of the bracket, a distance between the first end and the rotation shaft is adjustable;
• a first driving motor connected with the rotation shaft and configured to drive the bracket to rotate about the rotation shaft as a center of rotation;
• a second driving motor connected with the bracket and configured to drive the bracket to move on a line where the first end and the second end are located, wherein the glue coating portion comprises:
• a coating head having a circular arc surface with a slit;
• a glue storage chamber, one end of which is hermetically connected with the coating head;
• a piston located within the glue storage chamber and matching a size of the glue storage chamber;
• a transmission rod, a first end of which extends into the glue storage chamber and is connected with the piston;
• and a third driving motor connected with a second end of the transmission rod configured to drive the transmission rod with an axial movement along the glue storage chamber, wherein a programmable logic controller (PLC) is electrically connected with the first driving motor, the second driving motor, and the third driving motor for controlling respective power outputs of the first driving motor, the second driving motor, and the third driving motor, said PLC comprises:
• a parameter acquisition controller unit for acquiring a rotation speed parameter, a gap parameter from a substrate, and a coating pressure parameter;
• a motion controller connected with the parameter acquisition controller unit for controlling the power output of the first driving motor according to the rotation speed parameter, the power output of the second driving motor according to the gap parameter, and the power output of the third driving motor according to the coating pressure parameter.