新涂布机培训资料(英文版)

1、GL CoaterTraining Sea Dragon PM 4, - 2005A Technological partB Technical componentsC OperationD MaintenanceE SafetyTask of GL CoaterUniform application of fluid in order to: Improve printability 改善印刷质量 Improve opacity and gloss 提高透明度和光泽度 Prevent curling and dusting 防止卷曲和除尘Pigmenting and coating0.15

2、- 42 - 55 - 153.5 - 16 min2 . Limit switch: Metering beam in standby position3 . Limit switch: Metering beam in operating position4 . Limit switch: Applicator roll in operating position5 . Pressure switch (4-20 mA): press-on hose pressure min102030-30-20-10Start41523Stop sequence1) Stop sequence Coa

3、ter CleaningChanging of distribution deviceAutomatic stop sequence GL CoaterColor supply upper circulationColor at appl. rollDrain valve openAppl. roll in operating positionAppl. roll from crawling to operating speedMetering beam standby to operating positionPress-on hoseMetering rod drive (if appli

4、cable)Metering rod flushing water (if applicable)Edge spray nozzlesSeconds1 . Flow switch (4-20 mA): color supply min2 . Limit switch: Metering beam in standby position3 . Limit switch: Metering beam in operating position4 . Limit switch: Applicator roll in operating position5 . Pressure switch (4-2

5、0 mA): press-on hose pressure min405060Stop10203045132Web break procedure1) Web break signal web cut-off ahead of Coater2) Stop coating sequence activated automatically3) CleaningPhotocellsPhotocell forpaper web detectionBeam directionof photocellSwing directionof knivesKnock-off deviceChecks during

6、 operation Check color layer on paper: Low or high gloss? ( low or high coat weight) Check color layer on paper: Equal coverage or stripes? Check application width: Set edge doctor position Check if there is sufficient return flow from metering elementChecks during operationCheck paper gloss after c

7、oaterChecks during operationAdjust edge deckle positionA Technological partB Technical componentsC OperationD MaintenanceE SafetyCleaningApplicator rollClean at crawl speed. Start cleaning sequence manually. Use a soft sponge and warm water.Color distribution pipeRemove color residues, if any.Backin

8、g rollClean at crawl speed. Activate roll shower manually. Use a soft sponge and warm water.CleaningColor residues in color distribution pipeCleaningMetering rodSwitch on metering rod drive manually and clean with soft sponge. Edge doctorsRemove color residues, if any. Check for wear and replace if

9、necessary.Color panSwivel color distribution pipe to cleaning position and clean color pan with warm water.CleaningNever use sharp objects to clean the backing roll!When to replace wear parts?Metering elements (blade, rollflex)Application quantity can not be reduced any more (blade worn out)Applicat

10、ion fault (blade scratches, metering rod worn out)Product change, i.e. change of application rateOther reasons, e.g. after every web breakWhen to replace wear parts?Damaged metering rodWorn out bladesWhen to replace wear parts?Edge doctorDoctor blade worn out. DANGER: The metal support blade must no

11、t scratch on the applicator roll surface!Edge doctor blade changeReplacing a rollflex unitImportant items:Carry rollflex with 2-3 peopleCheck if an old metering rod can be re-usedMake records, attach a label to old rodAssembly of new rollflex unit1aligning aid2blademetering rod bed4metering rod5wood

12、en stripAssembly of new rollflex unitAssembly of new rollflex unitAssembly of new rollflex unit1metering rod2quick-release coupling3driver4 drive shaftReplacing a stiff blade or bent blade1) Press coating stop“ button metering beam will swivel to standby position.2) Press unclamp“ button clamping ho

13、se will de-aerate3) Take out old blade and install new blade4) Press clamp“ button5) Press coating start“ buttonPrepare roll change1. Swivel metering beam, applicator roll, and color distribution pipe to cleaning position.2. Switch off drives and safeguard against restarting.3. Disconnect pneumatic

14、and hydraulic supply and lubrication.4. Dismount drive shaft coupling.Roll change 1)2)3)Roll changeAdjustments after roll changeSet operating position metering beamSet operating position applicator rollSet splash guardSet sealing gap (only applicator roll change)Roll changeReplacing hydraulic cylind

15、erPrepare cylinder change1. Stop hydraulic unit and close shutoff valves.2. Drain hydraulic cylinder.3. Suspend metering beam with lifting gear to coater section framing.4. Remove hydraulic cylinder.Replacing hydraulic cylinder1pivot pin2cover3hydraulic cylinder4 bearing pin5 bellows6 bearing arm7 m

16、etering beam8 shackle9 lifting aidReplacing hydraulic cylinder 1block and tackle2rope3pivot pin4 cover5 hydraulic cylinder6 pivot pin7 color panReplacing hydraulic cylinder Adjustments after cylinder changeSwivel metering beam while de-aerating cylinder.Set operating position applicator rollSet oper

17、ating position metering beamReplacing clamping and press-on hosePrepare hose change1 Press unclamp“ button.2 Remove tube holder and side shields.3 Pull old hose out of groove. 4 Trim new hose and grind clean.5 Use soap sud to facilitate drawing the new hose into the groove.Replacing clamping and pre

18、ss-on hose 1press-on hose2pressing strip3hose clip4 connection nipple5 pneumatic air connection6 holder7 clamping screw8 side shield9 metering beam10 profiling spindlePress-on hoseReplacing clamping and press-on hose 1clamping hose2metering beam3hose clip4 connection nipple5 pneumatic air connection

19、6 clamping screw7 side shieldClamping hoseReplacing screw jack elementsPrepare screw jack element change1 Remove handwheel and position indicator.2 Remove cover with holder and clamp.3 Secure screw jack element with rope.4 Remove screw jack element.Replacing screw jack elements1screw jack element2ha

20、ndwheel3bracket4 clampReplacing screw jack elements1screw jack element2handwheelcover4 holder with clamp5 framingReplacing screw jack elements Adjustments after screw jack element changeSet operating position applicator rollSet operating position metering beamReplacing metering beam angle adjusting

21、device Prepare change1 Stop hydraulic unit and close shutoff valves.2 Suspend metering beam with lifting gear to coater section framing.3 Remove servomotor with angle encoder.4 Secure screw jack element with ropes and remove.Replacing metering beam angle adjusting device 1cross member2pivot pin3guard4 screw jack element5 cover6 pivot pin7 metering beam8 front blade9 shackle10 pull-li