Fully rigged metal zipper. Blender file

Fully rigged metal zipper.

Model is provided combined, all parts are presented as separate parts, materials of objects are easy to be modified or removed, replaced.
Preview images rendered in Blender 2.80 + Eevee.

The rig is:

Under Zipper Jnt you will have:

Ziper_Left_jnt - Rotate left side

Zipper_Right_Jnt - Rotate Right side

Zippper_Head_Jnt - Zipper Head Up and down

Ziper_Jnt - Main Zipper control.