Machine needle shut-off nozzle type HP
Contents
1. 0 2 3 16 885 1 5 8 368 SW65 1200 2 9 16 885 1 1 4 147 SW41 600 1 5 8 442 NS NS NS 1 2 8 8 SW17 30 11 16 22 1 SW17 30 11 16 22 1 Heater band screws sw4 5 32 sw4 gt 532 sw4 5 32 17 1 Temperature sensor SW14 9 16 SW14 9 16 SW14 9 16 herzog systems ag Tel 41 0 71 394 19 69 www herzog ag com 9 Fax 41 0 71 394 19 60 info herzog ag com M S Version 0 9 herzog systems ag HP Nozzle Installation amp Service Instructions Nerzog Parts subject to wear ordering spare parts Your contact information oms SSS se eoma o wa Lasered nozzle identity no please insert here oo Quantity Part for part name see chapter Assembly Send to herzog systems ag CH 9230 Flawil Switzerland Tel 41 0 71 394 19 69 Fax 41 0 71 394 19 60 www herzog ag com info herzog ag com Tel 41 0 71 394 19 69 www herzog ag com 10 Fax 41 0 71 394 19 60 info herzog ag com M S Version 0 92. Actuator Operational data according to engraving on cylinder Leakage Between needle and guide there is a melt film which prevents the needle from blocking The melt film will be continuously renewed and will eventually leak out of the nozzle A At machine downtimes nozzle temperature must be lowered Ideal nozzle actuation stages Actuating the nozzle at the stages indicated in the graph and generally when pressure is lowest helps increase longevity of wear parts Nozzle must be open before injection takes place Injection with a closed or partially closed nozzle will reduce the lifespan of wear parts Closing the nozzle against high melt pressure slows the mechanism and increases wear Measures to reduce the melt pressure should be taken if the actuator requires more than 0 5 sec to complete the piston stroke Example melt pressure time graph Injection pressure Holding pressure Back pressure I _ _ o He Pressure Ideal min 15 bar Time Injection start Dosing start Actuate nozzle open Actuate nozzle close herzog systems ag Tel 41 0 71 394 19 69 www herzog ag com 6 Fax 41 0 71 394 19 60 info herzog ag com M S Version 0 9 HP Nozzle Installation amp Service Instructions herzog Service instructions Read safety and cleaning instructions A Assembly Note Grease all threads with high temperature paste Attention Actuator service information available seperately in documentatio
3. HP Nozzle Installation amp Service Instructions herzog Machine needle shut off nozzle type HP pneumatically or hydraulically controlled Index of contents Chapter Page Safely INS MUIGTIONS xsczaseztcncecnenoidnntesdaacosGacutasinpddeuetnatnecedueddenadeersieadeaddenaceatneouieatesdacdeete 2 Installation instructions lt cecccieccetecceseadecde cca ceseecnndensectavaceesundeasectasedtedesdedeecsashetaseededesceadee 3 lt nstallation GUC DG cinereis ea seen sceeh A kaia kei aeii 3 ital operatiOi ice cencxescetaaenesacenescosascaaniedasiueharesdecacnasencncces asdecneanoutenstceuedeecrosteneccedecnsete 6 Ideal nozzle actuation STAGES cccseeeccecceeseeececeeeeeceecceueeceeeceaueeeeesuaueceesssageceessaaeees 6 SERVICE IISIMUCU ONS fic cctcaccceecaatncactcedecdeteatntce EEEE EERE E EEROR RE ESEE 7 sD AS Se ION aeea A E A ene 7 Recommended disassembly tool ccccccceeeseeeeeeeeeeaeceeeeeeeeeeeaeseeeeeeeesseaneeeeees 8 Cleaning INSIUCTIONS x s2ceeescetalecnseuidcnsh sect dasnsidevewnendeshacedaudneed cesudecninccWewcselvehoenusledened 8 E EA AE nae a oe era E a eee nn 9 Parts subject to wear Ordering spare parts cee cceeeseeeeeeeeeeeeeeeeeaeeeeeeseeneeeseeaaaeees 10 herzog systems ag Tel 41 0 71 394 19 69 www herzog ag com 1 Fax 41 0 71 394 19 60 info herzog ag com M S Version 0 9 HP Nozzle Installation amp Service Instructions Nerzog Safety instructions This symbol indicates
4. e 360 clockwise Il min 0 mm to max 1 mm Il min 0 5 mm to max 2 5 mm tip ring 2 adapter ring 1 Tighten two crosswise screws 2 Check gap between body and adapter ring max 2 5 mm herzog systems ag Tel 41 0 71 394 19 69 www herzog ag com 4 Fax 41 0 71 394 19 60 info herzog ag com M S Version 0 9 HP Nozzle Installation amp Service Instructions herzog crosswise 1 Tighten all screws in a crosswise fashion Torque HPO HP1 HP2 1 Mount heater band 1a and temperature sensor 1b 2 Attach flexible actuator pipe connections Note The actuator can be rotated 180 to suit 3 Tighten tip with torque according to chapter Assembly Tip is already tight when mounting step E has been correctly observed and the required gap exists between tip ring and the nozzle body 5 Tel 41 0 71 394 19 69 www herzog ag com M S Version 0 9 herzog systems ag Fax 41 0 71 394 19 60 info herzog ag com HP Nozzle Installation amp Service Instructions Nerzog Initial operation A Read safety instructions Initial operation 1 Bring nozzle to operating temperature 2 Only by first initial operation tighten screws and heater band screws to the maximum recommended torque 3 Make sure that the Polymer is completely melted 4 Eject the heated material This follows after extrusion at low speed ca 25 30S or through injecting out at three to five times the rate of injection
5. explanations about important matters Failure to read these or false handling could result in injury or damage Please pay attention to the following safety instructions and precautions A Handling Installation and servicing to be only carried out by suitable personnel according to the installation and service instructions e Nozzle can become extremely hot Full face protection and heat resistant gloves must be worn A Damage precaution Do not drop the nozzle or exert it to unnecessary forces Take care that no foreign bodies enter the working parts of the nozzle No adjustment or manipulation when nozzle is in operation Never heat steel parts over 520 C The actuator is designed for temperatures up to 180 C Nozzle is only to be used for injection molding purposes A Operational notes Maximum injection rate temperature 3000 bar at 400 C e Torques on screws and threaded parts must be adhered to e Noise emisions from the nozzle do not exceed 70 dB A A Explosion danger Some plastics produce gases if they stay for a longer time in a heated environment There is a risk that the gas may escape explosively through the nozzle orifice Keep this manual in a convenient place for future reference herzog systems ag Tel 41 0 71 394 19 69 www herzog ag com 2 Fax 41 0 71 394 19 60 info herzog ag com M S Version 0 9 A A 1 Loosen screws 2 Loosen tip 3 Screw the adapter out herzog syste
6. ividual parts Plastics such as LCP or PPS burn away when the nozzle is heated in an oven for tow hours at 500 C Never heat steel parts above 500 C Clean pneumatic or hydraulic actuator separately with max 150 C Avoid kinking the heater band and sensor cables Help tools for cleaning Sand fluidized bed Glass bead blasting Cleaning oven Gas burner Wire brush Steel wool Before reassembly check all parts for damage or wear Profit from our cleaning service The nozzle is disassembled checked and repaired if necessary after customer approval Tel 41 0 71 394 19 69 www herzog ag com 8 Fax 41 0 71 394 19 60 info herzog ag com M S Version 0 9 HP Nozzle Installation amp Service Instructions herzog Assembly A Note Grease all threads with high temperature paste See also chapter Disassembly 12 2 7 4 11 Assemble according to the numerical order 2 Pos Qty Description Tool size Torque o Metric Nm Imperial Ibs ft Metric Nm Imperial Ibs ft Metric Nm Imperial Ibs ft oh fo f e Eoo e h fe O o re e sem sw a o r eea T Base for two piece tip SW36 220 Cap for two piece tip SW27 120 SW13 12 3 16 2 2 SW8 5 5 16 3 7 eT 3 16 8 8 1 4 18 4 SW10 50 13 32 36 8 26 16 3 1 8 1 7 16 SW46 60 113 16 23 8 SW65 80 11 16 162 SW36 500 1 7 16 368 17 16 220 SWw41 500 1 1 16 88 5 SW32 200 SW55 120
7. ms ag HP Nozzle Installation amp Service Instructions herzog Installation instructions Read safety instructions Legend wy j in 1 n Weg with Hand Q inspectio smear with high temperature lubricant temperature equalisation A tool Note Nozzle is delivered pre assembled The following instructions are for installation on the machine For easier handling remove the actuator Tools required Hexagonal wrench allen key ring spanner socket wrench pliers punch See chapter Assembly for tool sizes and torques Installation steps A G 1 Loosen and respectively remove heater band screws 2 Take off heater band Note Loosen the screws by four rotations J o Tel 41 0 71 394 19 69 www herzog ag com 3 Fax 41 0 71 394 19 60 info herzog ag com M S Version 0 9 HP Nozzle Installation amp Service Instructions herzog C Check surfaces and threads oN gt Smear adapter thread with high temperature lubricant 4 Mount adapter await temperature equalisation and tighten acc to machine handbook Tighten two screws crosswise Align nozzle 1 Screw nozzle onto the adapter until contact 2 Screw in tip further until contact 3 Loosen the two previously tightened screws by four rotations 5 Align Screw nozzle clockwise further onto the machine 4 Screw in tip approx 180 further Note min 14 rotation Adapter ring gap nonexistent Loosen the two screws E and screw the nozzl
8. n Actuator For more information see www herzog ag com Disassembly A B Removing the nozzle from the machine 1 Heat nozzle to operating temperature 2 Remove actuator 2a temperature sensor 2b and heater band 2c 3 Loosen screws two rotations B 1b 1c D 5 1 Remove tip 1a Needle 1b and holding pin 1c 2 Remove bushing If you have difficulty removing the bushing we recommend using our disassembly tool see Recommended disassembly tool 3 Remove screws 3a and nozzle body 3b 4 Remove bracket 4a and adapter 4b 5 Strike out the lever bolt using a punch 5a and remove lever 5b a herzog systems ag Tel 41 0 71 394 19 69 www herzog ag com 7 Fax 41 0 71 394 19 60 info herzog ag com M S Version 0 9 herzog systems ag HP Nozzle Installation amp Service Instructions herzog Recommended disassembly tool Option Our disassembly tool eases the needle bushing removal 1 Holding pin must be removed or min 5 mm screwed out 2 Position removal nut 3 Screw in removal screw until the bushing is removed Assembly Note Bushing bore must be aligned with holding pin Tighten the holding pin with moderate strenght ca 8Nm The end position of the holding pin is approx 0 5 mm away from the body unit Cleaning instructions While the nozzle is still installed clean as far as possible in a heated state and finally disassemble completely and clean ind
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