Công nghệ SMT máy DEK chức năng proflow TX

Công nghệ SMT máy DEK chức năng proflow TX Electrical Schematic PNEUMATIC Schematic Adjustments Settings Replacement Procedures CALIBRATIONS MAINTENANCE ................................ ................................

PROFLOW TX OVERVIEW CHAPTER 12 PROFLOW TX OVERVIEW The ProFlow® Tx system attaches to the print carriage and is used to print various homogenous materials The detachable transfer head is available in 300mm or 400mm configurations The system requires fl oz cartridges of print medium, two for the 300mm head and three for the 400mm head As the print carriage drives the system across the stencil, the constant system pressure and the enclosed design of the transfer head ensures minimum wastage and maximum environmental protection of the print medium Figure 12-1 ProFlow Tx System Item Chapter Issue Jan 07 Description ProFlow Tx System Mount Technical Reference Manual Item Description ProFlow Tx Transfer Head Unit 13.1 PROFLOW TX OVERVIEW ProFlow Tx Mount Item Description Mount Thumbscrew (2 positions) Transfer Head Mount Bracket (2 positions) Vertical Transfer Head Pin Mount Z-axis Motor The ProFlow Tx mount assembly attaches to the machine’s print carriage It features two adjustable transfer head mount brackets and a vertical transfer head pin mount for attaching the transfer head A Z-axis stepper motor drives the ProFlow system up and down, delivering the transfer head to the print contact height and applying system pressure 13.2 Technical Reference Manual Chapter Issue Jan 07 PROFLOW TX OVERVIEW Transfer Head Unit 2 3 View On Front Left Corner 10 View On Rear Underneath Item Description Print Medium Cartridge Crosshead Piston Pneumatic Cylinder (2 positions) Print Medium Level Indicator Pin (2 positions) Print Medium Type Indicator Vertical Mount Pin Rear Wiper Blade Locator Dowel (2 positions) Front Wiper Blade Side Ski (2 positions) 10 Print Medium Chamber The transfer head contains the print medium and the associated pneumatics to replenish and maintain print medium pressure Chapter Issue Jan 07 Technical Reference Manual 13.3 PROFLOW TX OVERVIEW Transfer Head Retaining Grids (Optional) 10% Open Retaining Grid NOTE Front and rear wiper blades removed for clarity View on Front Left Underneath 50% Open Retaining Grid NOTE Front and rear wiper blades removed for clarity View on Front Left Underneath Figure 12-2 View on Front Left Underneath of the Transfer Head The retaining grids are optional extras and are available in 10% open and 50% open The grids help to prevent low viscosity print medium falling out of the chamber when the ProFlow transfer head is lifted off the screen This allows extra time for the ProFlow cover to be fitted 13.4 Technical Reference Manual Chapter Issue Jan 07 PROFLOW TX OVERVIEW System Pressure The System Pressure is a programmable parameter which controls the contact pressure of the transfer head against the stencil As the transfer head moves across the surface of the stencil, it must have enough downward pressure to: • Ensure that the side skis and wipers provide the enclosed environment which prevents any print medium leakage • Allow the trailing wiper to remove the excess print medium from the surface of the stencil during printing The system pressure is maintained by a Z-axis stepper motor which lowers and raises the ProFlow Tx system Based on a preset parameter, the motor turns a leadscrew that precisely positions the transfer head’s wipers and skis against the stencil NOTE It is important for the transfer head to be aligned vertically to ensure that the contact pressure on both wipers are equal Z-Axis System Pressure Down Through Centre of Transfer Head Unit Z Axis Motor Movement (Y Axis) Z Axis Screw Transfer Head Unit Print Medium Board Stencil Wiper (2 Positions) View on Left Side Chapter Issue Jan 07 Technical Reference Manual 13.5 PROFLOW TX OVERVIEW Print Medium Pressure Two pneumatically driven crosshead piston pressure solenoids are located on top of the transfer head During printing, these solenoids exert an even downwards force on the crosshead piston Print Medium Pressure Causes Flare on Crosshead Piston Seal Crosshead Piston Crosshead Piston Seal View on Arrow A Crosshead Piston Pressure Solenoid (in positions) Print Medium Injector Ports A View on Underneath of Transfer Head with Print Medium Chamber Removed As it presses down on the print medium, the crosshead piston seal flares out creating a pressurised environment and prevents any print medium from leaking past the seal Print medium is pumped through the crosshead piston using sealed injector ports 13.6 Technical Reference Manual Chapter Issue Jan 07 PROFLOW TX OVERVIEW Print Medium Charging/ Recharging At the end of a print stroke, if the print medium demand sensor detects that the print medium level is low, the ProFlow Tx system charges (or recharges) the print medium chamber in the transfer head Crosshead Piston Pressure Solenoid Print Medium Demand Sensor View on Front Right Hand Corner During the procedure, the print rails remain raised to support the screen, and system pressure is applied to prevent any leakage The print medium pressure is released, which raises the crosshead piston and creates a void in the chamber Pneumatic pressure is applied to the print medium cartridges to drive print medium to the head for a set period of time The system is now ready to resume the print cycle NOTE Charging and recharging the transfer head is an automatic process and requires no intervention from the machine operator Chapter Issue Jan 07 Technical Reference Manual 13.7 PROFLOW TX OVERVIEW Cartridge Low Level Sensors Each print medium cartridge is loaded with a magnet at the top of the print medium As the print medium decreases, the magnet follows the medium down the cartridge tube and eventually activating a reed switch mounted on a beam behind the cartridge Mounting Beam Cartridge Low Level Sensors (300mm Transfer Head) Cartridge Low Level Sensors (400mm Transfer Head) View On Front of the ProFlow Mount There are five reed switches attached to the ProFlow mount, two align with the two cartridges on a 300mm transfer head and the other three align with the three cartridges on a 400mm transfer head NOTE The reed switches are connected in parallel to a single digital input When a reed switch is activated, the warning message displayed on the monitor does not indicate which cartridge is low, this must be done visually 13.8 Technical Reference Manual Chapter Issue Jan 07 PROFLOW TX OVERVIEW Transfer Head Covers The ProFlow Tx system ships with two cover options for the transfer head: • Base Cover - Protects the wiper blades, skis and print medium during prolonged storage (more than one hour) • Protective Cover - Provides protection to the wiper blades, skis and the operator during short-term operations (removing and fitting) Base Cover View on Transfer Head with Base Cover Protective Cover Locking Clips View on Transfer Head with Protective Cover Chapter Issue Jan 07 Technical Reference Manual 13.9 PROFLOW TX OVERVIEW ProFlow Stencil Support The ProFlow stencil support option provides extra support for the stencil when printing boards which are narrower than the transfer head This extra support prevents print medium smearing, and also maintains the pressure within the transfer head Transfer Head Stencil Rising Table Board Magnetic Tooling Pins ProFlow Stencil Support (2 Positions) View on Front 13.10 Technical Reference Manual Chapter Issue Jan 07 PROFLOW TX REPLACEMENT PROCEDURES 12 Remove the piston seal retainer securing screws from the crosshead piston, using a 2.5mm Allen key NOTE The Crosshead Piston in a 300mm transfer head has retainer securing screws Retainer Securing Screws Retainer Securing Screws View on Top of Crosshead Piston 13 Remove the piston seal retainer Piston Seal Retainer Crosshead Piston Seal View on Bottom of Crosshead Piston 14 Remove the existing piston seal and discard 15 Unpack the new piston seal ensuring that the lip seals are in place (3 for the 13.44 Technical Reference Manual Chapter Issue Jan 07 PROFLOW TX REPLACEMENT PROCEDURES 400mm head and for the 300mm) Lip Seals Piston Seal 16 If any of the lip seals are detached from the piston seal, refit the correct way up as shown in the graphic below Piston Seal Lip Seal 17 Fit the new piston seal to the crosshead piston 18 Refit the piston seal retainer as shown in the graphic below Crosshead Piston Piston Seal Piston Seal Retainer Chapter Issue Jan 07 View on End Technical Reference Manual 13.45 PROFLOW TX REPLACEMENT PROCEDURES 19 Secure the piston seal retainer with the screws removed earlier 20 Align the flat edges of the crosshead piston shafts to the slots in the crosshead piston 21 Fit the crosshead piston to the aligned piston shafts 22 Fit the print medium level indicator pins (2 positions) to the crosshead piston, using a 2.5mm Allen key 23 Fit the top plate to the main body of the transfer head, carefully feeding in the piston assembly 24 Tighten the four captive thumbscrews on the transfer head top plate 25 Refit the transfer head to the ProFlow mount 26 Install the print medium cartridges 13.46 Technical Reference Manual Chapter Issue Jan 07 PROFLOW TX REPLACEMENT PROCEDURES Replacing the Z-Axis Motor Drive Belt To replace the the Z-axis drive belt, carry out the following: Ensure that the print carriage is to the front of the machine, the machine is powered down and the machine cover is open Remove the transfer head from the ProFlow mount Remove the ProFlow mount from the print carriage Manually turn the Z-Axis drive belt counter-clockwise to lower the mount Belt Guard Z-Axis Drive Belt Z-Axis Motor Print Carriage Mount Plate View on Rear of ProFlow Mount Remove the belt guard securing screws, using a 3mm Allen key Belt Guard Securing Screws View on Front of ProFlow Mount Chapter Issue Jan 07 Technical Reference Manual 13.47 PROFLOW TX REPLACEMENT PROCEDURES Remove the belt guard Loosen, but not fully unscrew, the four screws that secure the Z-axis motor to the support plate, using a 3mm Allen key Z-Axis Motor Mount Plate Z-Axis Motor Mount Screws (in positions) Z-Axis Motor View on Rear of ProFlow Mount Adjust the position of the motor to reduce the tension on the Z-axis drive belt Remove the old drive belt 10 Fit the new drive belt 11 Fit a cable tie, or similar, around the motor so that it can be securely pulled with a force meter, in the direction shown Force Meter 3Kg to 4Kg Tension Cable Tie View on Right Side of ProFlow Mount 12 Pull the motor, with a force meter, to a tension of 3kgs to 4kgs 13.48 Technical Reference Manual Chapter Issue Jan 07 PROFLOW TX REPLACEMENT PROCEDURES 13 Tighten the motor screws, using a 3mm Allen key 14 Remove the cable tie 15 Fit the belt guard with the two screws removed earlier, using a 3mm Allen key 16 Fit the ProFlow mount to the print carriage 17 Fit the transfer head to the mount Chapter Issue Jan 07 Technical Reference Manual 13.49 PROFLOW TX CALIBRATIONS CALIBRATIONS Print Carriage Home Position WARNING BOARD CLAMPS EXTREME CARE MUST BE EXERCISED WHEN WORKING IN THE TOOLING AREA OF THE MACHINE TO AVOID INJURY THE FOILS ON THE FRONT AND REAR BOARD CLAMPS ARE VERY SHARP Select Maintenance Select Diagnostics Select Print Carriage Select Select Module Select Home Print Carriage Select Run Diagnost Select Set Print Carriage Home Offset Select Run Diagnost Select Move 10 Open the machine cover 11 Measure the horizontal distance between the inside face of the front rail belt support plate, and the machined face of the print carriage (the squeegee/ ProFlow interface area); the correct setting is 612.0mm +/-2.0mm Right Hand Printhead 612mm +/- 2.0mm ProFlow Home Sensor Vane Front Rail Machine Plan View 12 If the adjustment is correct, go to Step 17 13 Remove the measuring equipment, and close the machine cover 14 Press the System button The following window and menu bar is displayed: HOME OFFSET 10.0 mm 15 Enter a new value for the Home Offset; a positive value drives the print carriage towards the rear of the machine, a negative value brings the print carriage to the front of the machine 13.50 Technical Reference Manual Chapter Issue Jan 07 PROFLOW TX CALIBRATIONS 16 To move, and test, the printhead at the new setting, repeat Steps to 12 17 Select Set 18 The status message This Will Over-write the Value in the Configuration File, Proceed? is displayed 19 Remove the measuring equipment and close the machine cover 20 Select Yes 21 Select Exit 22 Select Exit Chapter Issue Jan 07 Technical Reference Manual 13.51 PROFLOW TX CALIBRATIONS Configuring the Proflow Tx Contact Position Before printing with the ProFlow Tx system, it is necessary to calibrate the print contact height If the print contact height is set too high, the transfer head may not contact the stencil If the print contact height is set too low, the transfer head may contact the stencil with too much force, resulting in damage to the board clamps, stencil, or transfer head wiper blades To configure the print contact height position, carry out the following: Select Open Cover Commands If available, select Carriage to Front Select Back Open the machine cover Remove the transfer head from the ProFlow mount Load the product file ‘CALIBRA.PR1’ Load a calibration screen into the chase On the ProFlow mount, unscrew the left hand side thumbscrew until the thread is released Right Thumbscrew Left Thumbscrew Right Mount Bracket Left Mount Bracket View On Front of ProFlow Mount Pull on the left hand side thumbscrew until it is free from the mount hole 13.52 Technical Reference Manual Chapter Issue Jan 07 PROFLOW TX CALIBRATIONS Slide the left hand side mount bracket until right hand face just reveals the 200mm mark 400 350 300 250 200 Align Left Side Mount Bracket to Reveal 200mm View on Left Side of the Mount Beam 10 Release the thumbscrew to engage the thread into the mount hole 11 Tighten the thumbscrew to secure the mounting block to the beam 12 Fit the setting tool to the left side of the ProFlow mount 200mm Setting Tool View on Front 13 Unscrew the right hand side thumbscrew 14 Pull on the right hand side thumbscrew until it is free from the mount hole 15 Slide the right hand side mount bracket to the left until it engages with the setting tool 16 Release the thumbscrew to engage the thread into the mount hole 17 Tighten the thumbscrew to secure the mounting block to the beam 18 Connect the setting tool loom to 9SK06 on the left hand side mount bracket to prevent it from becoming tangled during the calibration process 19 Place a 0.1mm calibration shim on the calibration screen; position the shim so that it is located below the ProFlow system when the print carriage is in the Ready position 20 Close the machine cover 21 Press the System button 22 Select Load Screen 23 Select Continue 24 Select Continue; the calibration screen loads, and the print carriage stops in the Ready position Chapter Issue Jan 07 Technical Reference Manual 13.53 PROFLOW TX CALIBRATIONS 25 Select Maintenance 26 Select Calibrations 27 Select ProFlow 28 Select ProFlow Heights The following window and menu bar is displayed: ProFlow Calibrations PFLOW CONTACT POS 0.0 mm This PFLOW CONTACT POS parameter sets the height of the ProFlow transfer head Minimum Maximum Increment Default -10mm +10mm 0.1mm 0.0mm 29 Select Incr or Dec until the contact height reads 0.5mm 30 Select Move to Position The ProFlow Tx system is driven to the position set by the contact height parameter 31 Open the machine cover 32 Check the shim to see if it is evenly held in place by the setting tool 33 If the contact height is correct, go to Step 38 34 Close the machine cover 35 Press the System button 36 Repeat Steps 29 to 33 37 Close the machine cover 38 Select System 39 Select Exit 40 Select Exit 41 Select Exit 42 From the Maintenance screen, select Back 43 Select Unload Screen; the ProFlow Tx system performs a shake-off and the print carriage returns to the Home position 44 Select Continue 45 Select Open Cover Commands 46 Select Carriage to Front 47 Select Continue 48 Select Back 49 Open the machine cover 50 Remove the calibration shim 51 Remove the calibration screen 52 Disconnect the setting tool cable from 9SK06 53 Remove the setting tool from the ProFlow mount 13.54 Technical Reference Manual Chapter Issue Jan 07 PROFLOW TX CALIBRATIONS 54 Close the machine cover 55 Press the System button The print contact height calibration process is now complete NOTE When loading a product with a screen thickness greater than 0.2mm, changing the stencil thickness parameter automatically recalculates the contact height Chapter Issue Jan 07 Technical Reference Manual 13.55 PROFLOW TX MAINTENANCE MAINTENANCE To ensure effective operation of the ProFlow Tx system, maintenance tasks should be performed on both a daily, and an ‘as required’ basis 13.56 Technical Reference Manual Chapter Issue Jan 07 PROFLOW TX MAINTENANCE Daily Maintenance MANDATORY TOXIC CHEMICALS MAY BE PRESENT SAFETY GLOVES MUST BE WORN MANDATORY TOXIC CHEMICALS MAY BE PRESENT EYE PROTECTION MUST BE WORN WARNING HARMFUL SUBSTANCES CLEANING WIPES AND CLEANING SOLUTIONS MAY CONTAIN SUBSTANCES HAZARDOUS TO HEALTH OBSERVE ALL MANUFACTURERS’ HEALTH AND SAFETY GUIDELINES ALWAYS WEAR APPROVED PROTECTIVE CLOTHING WHEN CLEANING THE MACHINE Preparation Before performing maintenance on the transfer head, fit the protective cover and remove it from ProFlow Tx mount Tasks No Chapter Issue Jan 07 Task Clean transfer head wiper blades Tools Completed Spatula, IPA Impregnated Wipes Technical Reference Manual 13.57 PROFLOW TX MAINTENANCE As Required Maintenance MANDATORY TOXIC CHEMICALS MAY BE PRESENT SAFETY GLOVES MUST BE WORN MANDATORY TOXIC CHEMICALS MAY BE PRESENT EYE PROTECTION MUST BE WORN WARNING HARMFUL SUBSTANCES CLEANING WIPES AND CLEANING SOLUTIONS MAY CONTAIN SUBSTANCES HAZARDOUS TO HEALTH OBSERVE ALL MANUFACTURERS’ HEALTH AND SAFETY GUIDELINES ALWAYS WEAR APPROVED PROTECTIVE CLOTHING WHEN CLEANING THE MACHINE Preparation Before performing maintenance on the transfer head, fit the protective cover and remove it from ProFlow Tx mount Tasks No Task Tools Clean the transfer head; occasionally strip down the transfer head and clean all the internal components Spatula IPA Impregnated Wipes 2.5mm Allen Key 3mm Allen Key Inspect the Z-axis stepper motor belt; if it is worn, replace the belt 3mm Allen Key Completed NOTE Refer to Z-Axis Motor Drive Belt, earlier in the chapter Inspect the skis for damage; if dam- Spatula IPA Impregnated Wipes age is detected, replace both skis 2.5mm Allen Key 3mm Allen Key NOTE Refer to Transfer Head Skis, earlier in the chapter Inspect the transfer head for print medium leakage; look down the print medium level indicator holes in the top plate If paste is present, replace the crosshead piston seal Spatula IPA Impregnated Wipes 2.5mm Allen Key NOTE Refer to Crosshead Piston Seal, earlier in the chapter 13.58 Technical Reference Manual Chapter Issue Jan 07 ... M18SK02 9SK105 9PL17A 9SK25 ProFlow Tx Link ProFlow Link CH BCH B+ CH ACH A+ Machine Controller M36 PROFLOW TX ELECTRICAL SCHEMATIC ELECTRICAL SCHEMATIC 13.11 PROFLOW TX PNEUMATIC SCHEMATIC PNEUMATIC.. .PROFLOW TX OVERVIEW ProFlow Tx Mount Item Description Mount Thumbscrew (2 positions) Transfer Head Mount Bracket (2 positions) Vertical Transfer Head Pin Mount Z-axis Motor The ProFlow Tx. .. Chapter Issue Jan 07 PROFLOW TX REPLACEMENT PROCEDURES Squeegees to ProFlow Tx If the machine is configured to print using squeegees, remove the squeegee mount before installing the ProFlow mount Removing