Processing machine line

2:

• The processing machine line according to claim 1,
• wherein the display unit displays a first operation screen for displaying predetermined information on the machine tool on which the display unit is mounted and a second operation screen for displaying predetermined information on another machine tool hierarchically, and displays the first operation screen as an initial screen.

3:

• The processing machine line according to claim 2,
• wherein the second operation screen is positioned in a higher hierarchy than the first operation screen.

4:

• The processing machine line according to claim 2,
• wherein on the second operation screen, other-machine tool selection for selecting the first operation screen of another machine tool in order to display the predetermined information on the other machine tool, and other-machine tool selection release for returning from the first operation screen of the other machine tool to the first operation screen of the machine tool on which the display unit is mounted, are selected.

5:

• The processing machine line according to claim 1,
• wherein respective pieces of predetermined information of the plurality of machine tools are displayed on the display unit with different identification marks.

6:

• The processing machine line according to claim 1,
• wherein the display units are mounted in all of the plurality of machine tools.

7:

• The processing machine line according to claim 1, further comprising:
• a conveyance device which conveys a workpiece between the plurality of machine tools,
• wherein a conveyance control device for drive controlling the conveyance device is connected to the control devices of the plurality of machine tools via the line concentrator, and predetermined information on the conveyance device is displayed on the display unit.