Patent ID: 11911789
Assignee: THREEBOND CO., LTD.
Field: Surface technology, coating (Chemistry)
Classification: CPC B | IPC B

Claim 0:
1. A material application device comprising:
a storage container including a discharging part and a space containing a material;
a plunger configured to be movable in the space of the storage container to discharge the material from the discharging part;
a pushing part capable of attaching the plunger of the storage container; and
a driving part for imparting a driving force for moving the pushing part, wherein
the driving part comprises:
a motor capable of imparting a driving force to the pushing part;
an elongated ball screw that rotates by receiving rotation of the motor;
a nut that is screwed with the elongated ball screw, and is movable in a longitudinal direction of the elongated ball screw with the rotation of the elongated ball screw;
a spline member capable of moving the pushing part by being coupled with the pushing part and moving in the longitudinal direction together with the nut;
a bearing case having a hole which provides communication from outside to an inner space, and allows rotation and insertion of the elongated ball screw therethrough; and
a cylinder tube that is disposed adjacent to the bearing case, and is connectable to the bearing case, wherein
the inner space, which allows the elongated ball screw to rotate by flow in of a fluid from the hole, is formed by connecting the case member and the tube, the fluid being different from the material, and
the elongated ball screw rotates by the rotation of the motor or the flow in of the fluid from the hole of the bearing case to move the nut and the spline member in the longitudinal direction.