03217917-01-01E By DEK Technical Reference Manual Vol 1_enPDFA.pdf - 第179页
13 ADJUSTABLE WIDTH STENCIL MOUNT 13.1 OVERVIEW TECHNICAL REFERENCE MANUAL Vol 1 E By DEK 04/2019 179 1 6 5 4 3 2 1 Stencil Clamp Pneumatic Cylinder 4 Stencil Clamp Lever 2 Stencil Clamp 5 Pivot Point 3 Stencil Clamp Lev…
13 ADJUSTABLE WIDTH STENCIL MOUNT
13.1 OVERVIEW
178 TECHNICAL REFERENCE MANUAL Vol 1 E By DEK 04/2019
The pneumatic push buttons located on the inside of the front left and right hand web assemblies
are operated, releasing all four web assemblies on the front and rear rail assembly guide shafts.
Releasing the web assemblies allows the user to adjust the position of the left and right hand chase
rail assemblies, to accommodate for the appropriate size stencil using the stencil width measuring
scale.
700 650 600 550 450 350400500
29" 28" 26" 24" 22" 20" 18" 16" 14"
700650600550450350 400 500
29"
28"
26"
24"22"
20"
18"
16"
14"
1
2
1 Left Hand Scale 2 Right Hand Scale
The stencil is loaded from the front of the printer and slid into the printer along the top of stencil
support plates. Three stencil location leaf springs (located in the right hand chase rail assembly)
ensures the stencil is pushed against the stencil guide strips on the left hand chase rail assembly.
The stencil is clamped in the AWSM using pneumatically activated flaps that clamp the stencil to
the stencil support plates.
The AWSM is a floating assembly mounted on a bearing set and is aligned to the correct printing
position using three actuators. Once aligned, the AWSM is pneumatically clamped to the left and
right printhead assemblies (for further details refer to 14 "SCREEN ALIGNMENT MOD-
ULE" [}185]).
13 ADJUSTABLE WIDTH STENCIL MOUNT
13.1 OVERVIEW
TECHNICAL REFERENCE MANUAL Vol 1 E By DEK 04/2019 179
1
6
5
4
3
2
1 Stencil Clamp Pneumatic
Cylinder
4 Stencil Clamp Lever
2 Stencil Clamp 5 Pivot Point
3 Stencil Clamp Lever Actuator Bar 6 Stencil Clamp Lever Actuator Bar
Guide
To clamp the stencil in the AWSM, the stencil clamp pneumatic cylinder is extended pushing the
lever actuator bar towards the front of the printer. This operates the clamp levers which pivots the
stencil clamps downwards applying pressure on the top of the stencil frame.
The method used for achieving correct position of the stencil within the AWSM is Semi-Auto Stencil
Loader.
13 ADJUSTABLE WIDTH STENCIL MOUNT
13.1 OVERVIEW
180 TECHNICAL REFERENCE MANUAL Vol 1 E By DEK 04/2019
13.1.1 Semi-Auto Stencil Loader
1 2
3
4
5
6
7
8
1 Stencil Loader Mechanism 5 Stencil Loader Actuator Retracted
Sensor
2 Squeegee Drip Tray 6 Stencil Loader Actuator
3 Stencil Stop 7 Squeegee Drip Tray Actuator
4 Stencil Loader Actuator Extended
Sensor
8 Drip Tray Retracted Sensor
The semi-auto stencil loader (S-ASL) positions the stencil after the operator has placed it in the
chase. The stencil loader mechanism is incorporated into the squeegee drip tray mechanism which
is secured beneath the print carriage, therefore the drive is provided by the print carriage drive sys-
tem.