Infinity EX Printhead Lift.pdf - 第4页
INFINITY EX PRINTHEA D LIFT MODU LE ELECTRICA L DETAIL 8.4 Technical Reference Manu al Chapter Issu e 2 Jan 04 ELECTRICAL DET AIL Figure 8-2 Headlift Electrical Component Location F R O N T F R O N T F R O N T 2 1 3 4 5 …
INFINITY
EX
PRINTHEAD LIFT MODULE
MECHANICAL DETAIL
Chapter Issue 2 Jan 04 Technical Reference Manual 8.3
MECHANICAL DETAIL
Head Latches The head latches are electromagnets fitted to the printhead down stops. The
purpose of the head latches is to maintain stability of the machine by keeping
the two main castings locked together at the front.
The head down position and therefore the printhead/table level is set by the
spigot around which the magnet is fixed. To ensure that the magnet does not
interfere with the level, a gap of 0.05mm to 0.3mm is set between magnet and
plate with the head down and latches turned off.
Figure 8-1 Printhead Left Hand Latch
Printhead Casting
Printhead Level Adjustment
Locknut
Locating Spigot
Aluminium Base Plate
Electro Magnet
0.05mm - 0.3mm
Sprung Latch
INFINITY
EX
PRINTHEAD LIFT MODULE
ELECTRICAL DETAIL
8.4 Technical Reference Manual Chapter Issue 2 Jan 04
ELECTRICAL DETAIL
Figure 8-2 Headlift Electrical Component Location
F
R
O
N
T
F
R
O
N
T
F
R
O
N
T
2
1
3
4
5
7
6
Number Description
1 Print Carriage Brake Solenoid
2 Head Up Safety Switch
3 Head Latch - Right (LH opposite [not shown])
4 Head Prop Stowed Sensor (Solid State Microswitch)
5 Head Lift Actuator
6 Head Up and Head Down Switches
7 Head Down Over Travel Switch
INFINITY
EX
PRINTHEAD LIFT MODULE
ELECTRICAL DETAIL
Chapter Issue 2 Jan 04 Technical Reference Manual 8.5
Head Down
Overtravel Switch
If the head is lowered and the printhead down reed switch is not seen by the
controller, the actuator continues to drive the head down. This action could
result in some machine damage as the actuator plunger would continue to drive
up into the head lift bar. To prevent this the motor output is switched off by the
head down over travel switch. This switch is wired in series with the supply to
the two handed control relay and when activated immediately cuts power to the
motor.
The head down over travel switch also prevents the head lift motor from driving
down should the head become jammed whilst moving.
Figure 8-3 Head Down Overtravel Switch
Printhead Up
Reed Switch
Printhead Down
Reed Switch
Head Lift Bar
Part View on Printhead Actuator
(Viewed from rear of machine)
View on Switch and Clevis
(Plan View)
Clamp
Clevis
Switch
Switch
Tab