untitled PASTE ROLL HEIGHT MONITOR SAFETY INFORMATION CHAPTER 27 PASTE ROLL HEIGHT MONITOR SAFETY INFORMATION The Paste Roll Height Monitor uses a class 2 laser to detect the height of the paste roll.
Trang 1SAFETY INFORMATION CHAPTER 27 PASTE ROLL HEIGHT MONITOR
SAFETY INFORMATION
The Paste Roll Height Monitor uses a class 2 laser to detect the height of the paste roll
Warning and
The labels include:
• The safety warning label; radiation (Laser light source present)
• The manufacturer’s label; date and place of manufacture and the applica-ble safety standard
• Caution notice; specific safety instruction - do not stare into light source
Manufacturer: DEK, 11 Albany Road, Weymouth, Dorset, DT4 9TH Country of Manufacture: Germany
Complies with 21CFR1040 with deviations pursuant to Laser Notice 50 Manufacture Date: Month: Year:
DIODE LASER, MAX OUTPUT 1mW CLASS II LASER, WAVELENGTH 635 +/- 10Nm FDA Regulation “21 CFR Parts 1040.10 and 1040.11"
Safety Warning Label
CAUTION
LASER RADIATION,DO NOT STARE INTO BEAM
Trang 2MODULE OVERVIEW
In addition, the following general safety labels are presented throughout this chapter
WARNING RADIATION RISK OF INJURY TO THE EYES DUE TO LASER LIGHT BEING PRESENT IN THE VICINITY OF THE LABEL DO NOT LOOK AT THE LIGHT SOURCE OR REFLECTIONS FROM A SURFACE.
CAUTION EQUIPMENT SERVICING THE LASER DOES NOT CONTAIN USER
SERVICEABLE PARTS OPENING THE UNIT COULD CAUSE MIS-ALIGNMENT OF THE LASER, THIS MAY MAKE THE EQUIPMENT DANGEROUS TO OPERATE.
CAUTION LASER CONTROLS AND ADJUSTMENTS USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED HERIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.
MODULE OVERVIEW
medium, if insufficient height of the print medium roll is sensed an automatic paste dispense operation is initialized
• Roll Height Monitor Assembly
• Voltage Regulator
squeegee ‘I’ bar mount The front squeegee is fitted to the assembly in the same way as it fits the squeegee ‘I’ bar mount The laser light source is fitted
to the left hand leg of the assembly and the light receiver is fitted to the right hand leg The light source and receiver are positioned such that the line of sight between them is in front and between 10mm - 16mm above the tip of the squeegee As the machine performs a print stroke to the rear, the height of the print medium roll in front of the squeegee is monitored between 50% and 90%
of the print stroke If the receiver acquires light from the light source a paste dispense operation is initialized and an entry is written to the event log file If the entry in the event log equals or exceeds three, the tricoloured beacon
displays red and an error message ‘Insufficient Print Medium Has Been
Dispensed.’ The option to replenish the paste dispenser is given
Trang 3ELECTRICAL SCHEMATIC ELECTRICAL SCHEMATIC
Sensor 9SE15
Solenoid 9SOL26
NOTE The
+12V 0V
+12V 0V
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MECHANICAL DETAIL
Roll Height
either end of the beam via THK linear bearings, house the laser light source and receiver Plastic wedges at the foot of each leg prevent damage to the stencil whilst the print stroke is being carried out The horizontal beam houses beam extensions which can vary the beam’s length from 421mm to 575mm to accommodate different size squeegees Each extension is secured within the beam by a cap headed bolt
Figure 27-1 Roll Height Monitor Assembly
NOTE The paste drip tray must be removed before fitting the paste roll height monitor
machine The regulator provides the correct voltage to the roll height sensor
View on Arrow A Showing Light Receiver
A
Paste Height Adjustment (in 2 positions) Securing Screw
Nylon Screen Protector (in 2 positions) Laser Transmitter
THK Linear Bearing (in 2 positions)
Width Adjustment Securing Screw
(in 2 positions)
Front Squeegee Mount Horizontal Beam
Trang 5DRIVES & SENSORS
DRIVES & SENSORS
Sensors
Name Type Control Card Functional Description
Roll Height Sensor 9SE24 MultiMove X11 Detects the laser light when the print medium is insufficient.
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ADJUSTMENTS & SETTINGS
WARNING RADIATION RISK OF INJURY TO THE EYES DUE TO LASER LIGHT BEING PRESENT IN THE VICINITY OF THE LABEL DO NOT LOOK AT THE LIGHT SOURCE OR REFLECTIONS FROM A SURFACE.
CAUTION SOLDER PASTE AND SOLVENTS WHEN USING OR HANDLING ANY SOLDER PASTE OR SOLVENT FORMULATION THE MANUFACTURERS’ RECOMMENDED SAFETY PRECAUTIONS MUST BE STRICTLY ADHERED TO.
Setup Roll Height
2 Select Machine Setup.
3 Select Options.
4 Change Roll Height Hardware to Fitted.
5 Change Roll Height Monitor to Enabled.
6 Select Back.
7 Select Back.
8 Select Back.
Trang 7ADJUSTMENTS & SETTINGS
Roll Height
• Fitted
• Not Fitted
On Monitor Failure Sets the consumable action, options are:
• Warn
• Pause
• Suspend
Roll Height
• Enabled
• Disabled
Roll Height
• Min - 421mm
• Max - 575mm
• Increments 1mm The default is 421mm
NOTE While Roll Height Monitor is enabled, the Paste Dispense Position in Set Prefs
is set to Rear
Edit Current
Process
Parameters
The following Current Process Parameters are disabled whilst Roll Height Monitor is enabled:
• Paste Dispense Rate
• Paste While Clean
• Alternate Dispense Rate
• Paste With Board
of paste on the stencil prior to an automatic paste replenishment This can be set to maintain a paste height of between 10 - 16mm To adjust the height, carry out the following:
1 Ensure that a screen is loaded and that the transport rails and auxiliary conveyors are free of boards
2 Select Maintenance.
3 Select Machine Setup.
4 Select Options.
5 Select Roll Height Hardware and set to Enabled.
Trang 8ADJUSTMENTS & SETTINGS
8 Select Back.
9 Select Diagnostics.
10 Using the Next or Previous buttons; select Print Carriage.
11 Select Home Print Carriage.
12 Select Drive Carriage to Front Position.
13 Select Exit.
14 Using the Next or Previous buttons; select Squeegee.
15 Select Home Front Squeegee.
16 Select Home Rear Squeegee.
17 Select Drive Front Squeegee using Jog Buttons Press the right hand
jog button Drive the squeegee down until the front squeegee is in contact with the stencil
18 Select Exit.
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19 Open the front printhead cover
20 Using a 3mm allen key loosen the paste height adjustment cap headed screw located on the front of the right hand leg
21 Adjust the length of the leg to the required sensor height Tighten the cap headed screw
22 Repeat Steps 7 and 8 for the left hand leg
23 Close the front printhead cover
24 Press the System button.
25 Select Exit.
Paste Height Adjustment (in 2 positions) Securing Screw
THK Linear Bearing (in 2 positions)
Width Adjustment Securing Screw
(in 2 positions)
Front Squeegee Mount Horizontal Beam
Paste Height Adjustment (0 - 10mm)
NOTE Paste Height = Paste Height Adjustment + 10mm
Paste Height Adjustment Locking Screw
Trang 10ADJUSTMENTS & SETTINGS
Beam Width
1 Select Diagnostics.
2 Using the Next or Previous buttons; select Print Carriage.
3 Select Home Print Carriage.
4 Select Drive Carriage to Front Position.
5 Select Exit.
6 Open the printhead front cover
7 The beam width adjustment screws are located as shown below
Paste Height Adjustment (in 2 positions) Securing Screw
THK Linear Bearing (in 2 positions)
Width Adjustment Securing Screw
(in 2 positions)
Front Squeegee Mount Horizontal Beam
Trang 11ADJUSTMENTS & SETTINGS
8 Set each arm to provide a gap between the edge of the squeegee (or
deflector) equal to 10mm.
9 Close the front printhead cover
10 Press the System button.
11 Select Exit.
Roll Height Monitor Width Adjustment
Securing Screw (in 2 positions)
Front Squeegee
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REPLACEMENT PROCEDURES
1 Ensure the machine is powered down
2 Release the front squeegee thumbscrews and remove the front squeegee
3 Remove the Squeegee ‘I‘Beam, use the three mounting screws for fitting the roll height monitor
4 Fit the roll height monitor assembly to the front squeegee mounting plate and secure with the three screws
5 Connect the electrical connector 9PL60 to 9SK60.
Front Squeegee Leadscrew
Roll Height Monitor
Width Adjustment Securing Screw (in 2 positions)
Front Squeegee Mount
‘I’ Beam Securing Screws (in 3 positions)
Electrical Connector 9PL60
to Print Carriage IO Node 3
Trang 13REPLACEMENT PROCEDURES
7 On completion, power up and initialize the machine and carry out Squeegee Reference Height setting
machine:
1 Ensure the machine is powered down
2 Release the front squeegee thumbscrews and remove the front squeegee
3 Disconnect the electrical connector 9PL60 from 9SK60.
4 Using a 4mm allen key, loosen the three Roll Height Monitor assembly
securing screws and remove the monitor assembly from the machine
5 Fit the front squeegee ‘I’ bar and secure with the three cap headed bolts and refit the front squeegee to the front squeegee ‘I’ bar
6 On completion, power up and initialize the machine and carry out Squeegee Reference Height setting (see Squeegee Module, Infinity Technical Refer-ence Manual for details)
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