Công nghệ SMT máy DEK mô đun blue under screen cleaner module BLUE UNDER SCREEN CLEANER MODULE OVERVIEW Vacuum Filtration Solvent Advice ELECTRICAL SCHEMATIC (standard) ELECTRICAL SCHEMATIC (Metal Covers Machine) ADJUSTMENTS AND SETTINGS Screen Cleaner Home Screen Cleaner Height Adjustment Calibrations External Solvent Tank Solvent Bottle Paper
BLUE UNDER SCREEN CLEANER MODULE OVERVIEW CHAPTER 23 BLUE UNDER SCREEN CLEANER MODULE OVERVIEW 11 12a 12b 10 Figure 23-1 Blue Under Screen Cleaner (Standard Machine) Item Description Item Description Squeegee Assembly Clean Paper Roll Take Up Roll Tubular Vacuum Arms Paper Feed Motor 10 Body Assembly Permanent Magnet (2 positions) 11 External Solvent Tank Electromagnetic Clamp (2 positions) 12a VF35i Vacuum Filtration Unit Solvent Pump 12b VF25 Vacuum Filtration Unit Paper Usage Sensor Chapter Issue Jun 10 Technical Reference Manual 23.1 BLUE UNDER SCREEN CLEANER MODULE OVERVIEW 11 12 10 Figure 23-2 Blue Under Screen Cleaner (Metal Covers Machine) Item 23.2 Description Item Description Squeegee Assembly Paper Usage Sensor Take Up Roll Clean Paper Roll Paper Feed Motor Tubular Vacuum Arms Permanent Magnet (2 positions) 10 Body Assembly Electromagnetic Clamp (2 positions) 11 Solvent Bottle Solvent Pump 12 VF10 Venturi Vacuum Filtration Unit Technical Reference Manual Chapter Issue Jun 10 BLUE UNDER SCREEN CLEANER MODULE OVERVIEW The blue under screen cleaner (USC) wipes lint free paper, dry or wet across the underside of the screen to minimize paste build up Available in three widths, 300, 400, 520 and 580mm The frequency and mode (wet/dry/vac) is programmable in the product file When a screen cleaner operation is required, the camera carriage approaches the cleaner and attaches to the cleaner using two permanent magnets The two electromagnetic clamps holding the screen cleaner unit in the home position are de-energized allowing the camera carriage to pull the cleaner across the screen A paper usage sensor enables the software to monitor the clean paper roll The paper feed motor supplies a clean section of paper across the two rubber wiper blades of the squeegee assembly The two blades wipe the paper across the underside of the screen as the USC is pulled across the underside of the screen by the camera carriage The two rubber wiper blades form the mouth of the vacuum cleaner The solvent pump supplies solvent to the paper roll from the: • External Solvent Tank • Solvent Bottle (metal covers machine only) The external solvent tank, mounted on the rear or either side of the machine, is a container capable of accommodating a litre container of solvent A load cell in the base of the external solvent tank enables the software to calculate the percentage level of solvent within the container The solvent bottle is not fitted with a sensor and must be checked visually The vacuum filtration unit extracts solvent fumes and draws excess print material onto the paper Vacuum Filtration The vacuum filtration unit may be one of the following types: • VF35i Vacuum Filtration Unit • VF25 Vacuum Filtration Unit • VF10 Venturi Vacuum Filtration Unit NOTE For information on the removal and replacement of the filters, refer to the Preventive Maintenance chapter of this manual VF35i Vacuum Filtration Unit Chapter Issue Jun 10 The onboard VF35i vacuum filtration unit is protected by two circuit breakers on the front panel of the base unit A 15A (for 110V) and an 8A (for 230V) which can be reset by pressing the circuit breaker button covered by a clear plastic protector For safety, the voltage selector control knob is removed from the switch and bolted to the fan housing The VF35i vacuum filtration unit has a three position mechanical air flow adjuster to regulate the air flow as follows: • Maximum (full air flow) • Medium (half air flow approximately) • Minimum (15% of full air flow approximately) Technical Reference Manual 23.3 BLUE UNDER SCREEN CLEANER MODULE OVERVIEW VF25 Vacuum Filtration Unit The onboard VF25 vacuum filtration unit is protected by either an 8A (for 110V units) or 5A (for 230V units) slow blow fuse A spare fuse is also provided in the retractable fuse clip sited under the mains socket of the base unit VF10 Vacuum Filtration Unit The onboard VF10 Venturi Vacuum Filtration Unit, located in the front of the machine frame, uses air pressure to create a vacuum Solvent Advice DEK only recommend the DEK-PRO and the DEK-PRO XF (Environmentally Friendly) USC solutions to be used with the under screen cleaner The following are available from DEK: Description Size Part No DEK-PRO Under Screen Clean Solution Litre 173483 DEK-PRO XF Under Screen Clean Solution Litre 431513 DEK-PRO Under Screen Clean Solution Litre 173485 DEK-PRO XF Under Screen Clean Solution Litre 431514 DEK-PRO Under Screen Clean Solution 20 Litre 431093 NOTE The following solvents MUST NOT be used in the under screen cleaner unit, however, this list is not complete and does not mean that any solvent not mentioned is compatible, with DEK machines 23.4 • Rosstech 106 FE • Rosstech 162 ND • Acetone • Iso-Propyl Alcohol (IPA) Technical Reference Manual Chapter Issue Jun 10 Chapter Issue Jun 10 Technical Reference Manual USB CAN_H CAN_L CAN GND NextMove ES (I/O Node 1) I/Ps O/Ps NOTE The breaks in the CAN NextMove Bus chain reflect that Interface additional I/O Nodes AN IN0 + may be fitted, refer to AN IN0 Machine Control 0V USR chapter for the +12V complete CAN Bus -12V chain Motherboard PC M36 Machine Control Enclosure M37 Power Supply Module M37PL35 Vac L Pump N Supply E M36PL09 10 12 14 CAN In DIG IN DIG IN DIG OUT 0V N/C M35SK01 +12V Sig 0V (L) +12V Sig 0V (L) Level + AGND 0V USR +12V -12V 16SK08 Solvent 9SK63 Level Amp 9PL64 1 -V +V -IN +IN DIG OUT 14 0V Paper Feed Motor 8M5 M Solvent Load Cell 9SE26 Cleaner Squeegee Bar 16SOL08 L/H Clean Home Clamp 8SOL19 R/H Clean Home Clamp 8SOL20 Solvent Pump 8M14 M Paper Low/ Paper Usage 8SE18 Screen Cleaner Home 8SE10 Vacuum Filtration Unit L N E N4PL5 8SK76 1 DIG OUT 24V 2 0V DIG OUT 8SK72 0V N4PL2 8SK11 DIG OUT 0V 8SK13 DIG OUT 0V N4PL1 N4PL4 N4PL6 Main Machine N2PL4 I/O Node 21 9PL69 N2SK2 Ext Service Panel M36PL35 CAN Bus N4SK2 N2SK3 CAN Out CAN In N4SK3 CAN Out Screen Clean I/O Node M35SK02 BLUE UNDER SCREEN CLEANER MODULE ELECTRICAL SCHEMATIC (STANDARD) ELECTRICAL SCHEMATIC (STANDARD) 23.5 23.6 Technical Reference Manual USB NOTE The breaks in the CAN Bus chain reflect that additional I/O Nodes may be fitted, refer to Machine Control chapter for the complete CAN Bus chain Motherboard PC CAN_H CAN_L CAN GND NextMove ES (I/O Node 1) M36 Machine Control Enclosure M36PL35 CAN Bus N4SK2 CAN In N2SK2 N2SK3 CAN Out CAN In N4SK3 CAN Out N/C M35SK01 +12V Sig 0V (L) +12V Sig 0V (L) DIG OUT 14 0V 16SK08 N4PL5 8SK76 1 DIG OUT 24V 0V 0V DIG OUT 8SK72 0V N4PL2 8SK11 DIG OUT 0V 8SK13 DIG OUT 0V +12V DIG IN 0V +12V DIG IN 0V N4PL4 N4PL1 DIG OUT 0V N4PL6 Main Machine N2PL4 I/O Node 21 Screen Clean I/O Node Paper Feed Motor 8M5 M Cleaner Squeegee Bar 16SOL08 L/H Clean Home Clamp 8SOL19 R/H Clean Home Clamp 8SOL20 Solvent Pump 8M14 M Paper Low/ Paper Usage 8SE18 Screen Cleaner Home 8SE10 Vacuum Unit 8SOL29 BLUE UNDER SCREEN CLEANER MODULE ELECTRICAL SCHEMATIC (METAL COVERS MACHINE) ELECTRICAL SCHEMATIC (METAL COVERS MACHINE) Chapter Issue Jun 10 BLUE UNDER SCREEN CLEANER MODULE ADJUSTMENTS AND SETTINGS ADJUSTMENTS AND SETTINGS 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 MANDATORY TOXIC CHEMICALS MAY BE PRESENT SAFETY GLOVES MUST BE WORN MANDATORY TOXIC CHEMICALS MAY BE PRESENT EYE PROTECTION MUST BE WORN Screen Cleaner Home Select Maintenance Select Diagnostics Use Next or Previous to highlight Screen Cleaner Select Select Module Use Next or Previous to highlight Toggle Screen Cleaner Home Clamp Select Run Diagnost to release the electromagnetic clamps Move the cleaner by hand towards the rear of the machine until the error message ‘Screen Cleaner Out Of Position’ is displayed Using a 2.0mm feeler gauge positioned between the left hand screen cleaner home electromagnetic clamp (8SOL19) and the clamp plate, pull the cleaner towards the front of the machine With the clamp plate held lightly against the feeler gauge, ensure that the error message remains displayed Electromagnetic Clamp Clamp Plate Feeler Gauges View on Front of Machine Repeat Step using a 1.5mm feeler gauge, ensure the error message has extinguished 10 If adjustment is not required, go to Step 14 Chapter Issue Jun 10 Technical Reference Manual 23.7 BLUE UNDER SCREEN CLEANER MODULE ADJUSTMENTS AND SETTINGS 11 Move the cleaner towards the rear of the machine until the vane securing screws are accessible Home Sensor Vane Vane Securing Screws View on Front of Machine 12 Loosen the vane securing screws, adjust the vane and re-tighten the securing screws 13 Repeat Steps to 10 14 Select Run Diagnost to energise the electromagnetic clamps 15 Select Exit 16 Select Exit 17 Select Back Screen Cleaner Height Adjustment Select Unload Screen Open the front printhead cover Remove the screen from the machine Using the calibration screen, position the front edge of the screen frame over the under screen cleaner wipers 23.8 Technical Reference Manual Chapter Issue Jun 10 BLUE UNDER SCREEN CLEANER MODULE ADJUSTMENTS AND SETTINGS Using feeler gauges ensure the gap between squeegee wipers and the screen frame is 3.25mm ±0.25mm Screen Frame Squeegee Wiper Assembly 3.25mm ±0.25mm View on Front of Machine Securing Screw (in positions) View on Left Hand Side of Machine (covers removed) If adjustment is not required, go to Step 11 To gain access to cleaner securing screws move the underscreen cleaner away from its home position Loosen the two securing screws at either end of the cleaner tray Adjust the cleaner tray until the correct gap between the wipers and stencil is achieved 10 Tighten the securing screws and recheck the gap between the wipers and screen frame 11 Refit the screen 12 Close the front printhead cover 13 Press the System button 14 Select Load Screen Chapter Issue Jun 10 Technical Reference Manual 23.9 BLUE UNDER SCREEN CLEANER MODULE CALIBRATIONS CALIBRATIONS CAUTION RECOMMENDED SOLVENTS ANY SOLVENTS USED MUST COMPLY WITH LOCAL ENVIRONMENTAL GUIDELINES DEK RECOMMEND USING SOLVENTS THAT ARE ENVIRONMENTALLY FRIENDLY, IE CFC FREE AND WATER BASED SOLVENTS USED MUST HAVE FAST EVAPORATION RATES AND FLASHPOINT SPECIFICATIONS GREATER THAN 39ºC WARNING SOLVENT SPRAY THE UNDERSCREEN CLEANER SPRAYS A FINE JET OF SOLVENT SOLUTION ON TO THE CLEANER APPROVED PROTECTIVE CLOTHING SHOULD BE WORN 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 MANDATORY TOXIC CHEMICALS MAY BE PRESENT SAFETY GLOVES MUST BE WORN MANDATORY TOXIC CHEMICALS MAY BE PRESENT EYE PROTECTION MUST BE WORN External Solvent Tank The software needs to know the weight of the external solvent tank when fitted with an empty container and when fitted with a full container of the solvent to be used NOTE Due to solvents having different gravities, the weight must be re-calibrated when changing solvents To calibrate the software carry out the following procedure: Ensure that the external solvent tank is fitted with an empty litre container Select Maintenance Select Calibrations Select Solvent Select Set Solv Empty Confirm by selecting Yes 23.10 Technical Reference Manual Chapter Issue Jun 10 BLUE UNDER SCREEN CLEANER MODULE CALIBRATIONS Replace the empty litre container with a litre container full of the solvent to be used Select Set Solv Full Confirm by selecting Yes 10 Select Exit 11 Select Exit 12 Select Back Solvent Bottle There are no calibrations associated with the solvent bottle fitted to the metal covers machine Paper If paper counting is enabled, the software needs to know the paper roll length when first fitted to the under screen cleaner NOTE The length of the paper roll is printed on the paper roll wrapping To calibrate the software carry out the following procedure: Select Open Cover Commands Select Unload Screen Open the front printhead cover Remove the screen from the machine Change the paper roll as detailed in the consumable replenishment Select Change Paper Ensure the paper length parameter matches that stated on the paper roll wrapper Select Continue Select Prime Paper and when prompted press the two button control switches simultaneously ensuring that the paper feeds correctly 10 Select Back 11 Refit the screen 12 Close the front printhead cover and press the System button when prompted 13 Select Load Screen 14 Select Back Chapter Issue Jun 10 Technical Reference Manual 23.11 BLUE UNDER SCREEN CLEANER MODULE CALIBRATIONS 23.12 Technical Reference Manual Chapter Issue Jun 10 ... Size Part No DEK- PRO Under Screen Clean Solution Litre 173483 DEK- PRO XF Under Screen Clean Solution Litre 431513 DEK- PRO Under Screen Clean Solution Litre 173485 DEK- PRO XF Under Screen Clean... Manual Chapter Issue Jun 10 BLUE UNDER SCREEN CLEANER MODULE OVERVIEW The blue under screen cleaner (USC) wipes lint free paper, dry or wet across the underside of the screen to minimize paste build... Unit 8SOL29 BLUE UNDER SCREEN CLEANER MODULE ELECTRICAL SCHEMATIC (METAL COVERS MACHINE) ELECTRICAL SCHEMATIC (METAL COVERS MACHINE) Chapter Issue Jun 10 BLUE UNDER SCREEN CLEANER MODULE ADJUSTMENTS