MEC-CP842-1.0E.pdf - 第168页

Adjustments >> Station Adjustme nts 7-32 MEC-CP842-1.0E 4 Use the cam handle to ro tate the cam to 190°. 5 Place a dial gau ge on the top end of the cam lever and zero the gauge. In this condition, the nozzle UP/DO…

Adjustments >> Station Adjustments

MEC-CP842-1.0E 7-31

Adjusting the Nozzle DOWN Limit Sensors

The nozzle DOWN limit sensor that detects the down limit position of the nozzle UP/

DOWN rod is mounted inside the cam box. Adjust the position of this sensor so that it

switches ON when the nozzle is at its DOWN limit position.

Note: If adjusting the DOWN limit sensor after the UP limit sensor, remove the dial gauge from the

machine to avoid interference between the dial gauge and the cam lever.

1 Press the EMERGENCY STOP button to take 200V down to 100V.

2 Set the cam axis at 0°.

3 Activate the ST9 placing solenoid air cylinder (located in the cam box):

Execute the following I/O commands: [Maintenance] - [I/O Check] - [Standard I/

O] - [Y035 ST9 PLACE SOL ENGAGED] - [Output Signal ON]

The cam lever will then follow the cam.

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.

ST9 Place solenoid

air cylinder

Cam lever

Nozzle UP/DOWN rod

Cam axis

Cam lever follows

the cam.

C7SM4029a

Nozzle up limit sensor

Nozzle down limit sensor

Adjustments >> Station Adjustments

7-32 MEC-CP842-1.0E

4 Use the cam handle to rotate the cam to 190°.

5 Place a dial gauge on the top end of the cam lever and zero the gauge. In this

condition, the nozzle UP/DOWN rod will be at its DOWN limit position. Verify

that the nozzle DOWN limit sensor is ON (X033 ST9 CYLINDER LOWER-

LIMIT) at the I/O screen.

6 While observing the dial gauge, advance the cam to raise the nozzle UP/DOWN

rod. Adjust the sensor position so that the sensor switches OFF (X033 ST9

CYLINDER LOWER-LIMIT) when the rod has been raised 0.3 to 0.4 mm.

Adjust the sensor position by loosening the sensor lock screw and sliding the

sensor forward or backward.

C7SM4033

Set the dial gauge to "0".

Nozzle down limit sensor (ON)

Dog

Nozzle UP/DOWN rod

C7SM4034

Nozzle down limit sensor (OFF)

Nozzle UP/DOWN rod

Rod raised 0.3 to 0.4 mm.

Dog

C7SM4035

Nozzle down limit senso

Screw

Dog

Adjustments >> Station Adjustments

MEC-CP842-1.0E 7-33

7.1.10 Mechanical Valve Switching (ST9)

Point

The nozzle vacuum switches from ON to OFF with the movement of the mechanical

valve at station 9. The vacuum cut is timed to allow part placement. Ensure that the

part is placed correctly on the production panel.

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 (see 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.

C7SM4036a

Vaccum ON Vaccum OFF

Vaccum

Spool

8.9 mm

2KPDTCEMGV

,KI

( Z9827DGPJ029*)

8.9 mm

C7SM4054Eb