MEC-CP842-1.0E.pdf - 第147页

Adjustments >> Station Adjustments MEC-CP842-1.0E 7-11 4 Place a dial gauge on the top end of th e cam lever and set the gauge reading to “0”. In this conditi on, the cam axis will be at 0°, and the nozzle UP/DOWN …

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Adjustments >> Station Adjustments
7-10 MEC-CP842-1.0E
Adjusting the Nozzle UP Limit Sensor
The sensor that detects the height of the nozzle UP/DOWN rod is mounted inside the
cam box. Adjust the sensor’s mounting position so that the sensor switches ON when
the nozzle is at its UP limit.
1 Press the EMERGENCY STOP button. This turns off the 200V power.
2 Set the cam axis at 0°.
3 Activate the ST1 pick-up solenoid air cylinder (located in the cam box):
WARNING
• Press EMERGENCY STOP before performing this procedure.
• Exercise extreme caution when working on the machine if the cam
is not at its origin (0 deg.). Spring recoil can rotate the cam inde-
pendently.
1ST Pick-up solenoid
air cylinder
Cam lever
Nozzle up limit sensor
Nozzle UP/DOWN
rod
Cam axis
Cam lever follows the cam axis.
C7SM4015a
Adjustments >> Station Adjustments
MEC-CP842-1.0E 7-11
4 Place a dial gauge on the top end of the cam lever and set the gauge reading to
“0”. In this condition, the cam axis will be at 0°, and the nozzle UP/DOWN rod
will be at its UP limit position. Verify that the nozzle UP limit sensor is ON
(X030 ST1 CYLINDER UPPER-LIMIT is ON) at the I/O screen.
5 While observing the dial gauge, rotate the cam axis in the forward direction to
lower the nozzle UP/DOWN rod. Adjust the sensor’s mounting position so that
the sensor switches OFF (X030 ST1 CYLINDER UPPER-LIMIT switches OFF)
when the rod has been lowered 0.3 to 0.4 mm.
6 Adjust the sensor’s mounting position by loosening the sensor lock screw and
sliding the sensor in the front/back directions.
C7SM4016
Dog
Nozzle UP/DOWN
rod
Set the dial gauge
to "0"
Nozzle up limit sensor (ON)
Dog
Nozzle UP/DOWN
rod
Nozzle up limit sensor (OFF)
C7SM4017
C7SM4018a
Nozzle up limit sensor
Screw
Sensor bracket
Dog
Adjustments >> Station Adjustments
7-12 MEC-CP842-1.0E
7.1.4 Mechanical Valve Switching (ST1)
Point
The nozzle vacuum goes from OFF to ON with the movement of the mechanical valve
at station 1. Vacuum for part pick-up reaches the nozzle when the valve is open.
Checking the Position of the Pin Bracket
1 Press the EMERGENCY STOP button to turn off the 200V power, leaving only
the 100V power on.
2 Ensure that distance A (as seen in the figure below) is 8.9 mm for all heads. Use
a special jig (Z9827DGPJ029*) to check this distance.
WARNING
• Press EMERGENCY STOP before performing this procedure.
• Exercise extreme caution when working on the machine if the cam
is not at its origin (0 deg.) Spring recoil can rotate the cam inde-
pendently.
Vaccum ONVaccum OFF
Vaccum
Vaccum
Spool
Spool
< Spool pushed up > < Spool pushed down >
C7SM4019a
8.9 mm
2KPDTCEMGV
,KI
( Z9827DGPJ029*)
8.9 mm
C7SM4054Eb
A