Magnum Venus Plastech PATRIOT SSB User Manual

Patriot SSB Auto
Commissioning and instruction and maintenance manual
Issue 05
CONTENTS
Section Description Page
1.0 Machine Overview 2
1.1 Health & Safety General Overview 3
2.0 Instrumentation and Control Familiarisation 4-7
3.0 Priming SSB Fluid Sections 7-9
4.0 Machine Operation 9-11
5.0 Shut down 11
6.0 Routine Maintenance 11
7.0 Maintenance 12
8.0 Patriot Resin Pump 16
9.0 Catalyst Pump, CAV,OP valve and ratio system 22
10.0 Injection Head & Mixer Assembly 32
11.0 Solvent Pump 33
11.2 Solvent automatic head valve 34
12.0 RGA Resin Gel Alarm 36
13.0 SSB Auto Machine Doctor 38
14.0 Additional Machine Connections 41
15.0 Machine Air Circuit 42 Revision history 43
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1.0 To enable understanding of machine controls please read the
following descriptions referenced to the general machine view
Resin automatic valve
Solvent automatic valve
Catalyst automatic valve
Pump speed regulator Pump Start/Stop
recirculation Static Mixer
Mould Pressure injection hose pressure Guard
Mixer outlet point
Catalyst Bottle 5L Mount
Patriot Resin Pump
Solvent tank 20L Mount
Optional Drum Trolley fixing points
Optional PV Sensor system
Pump Speed air pressure
Emergency stop/ Power ON/OFF
Mix resin pressure Counter Reset (Side mounted) Mix Resin Pressure
Regulator Solvent/Air Flush Pump Start /Stop Resin Gel Alarm (RGA)
MotoCat Ratio Control
Internal Lever enables unlock of fluid section for easy maintenance
Ratio arm Cover
Catalyst pump
Lockable Castor wheels
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1.1 Health & Safety - General over view of important health and safety issues relating to this machine
The following instruction manual contains a number of references to controls and procedures that will ensure safe operation of the machinery. The machines are designed to process substances that are hazardous to health and therefore it is vital that any materials that are introduced to the machinery have valid MSDS (material safety data sheets) in place and that machine operators and maintenance staff are fully informed and trained in the use of the materials and of the potential hazards.
Users are also advised to ensure that these operator instructions are correctly and adequately made available to machine operators and maintenance staff.
Machine Guard
The Machine guard, which is supplied with this machine, must be correctly fitted at all times during operation. Also during servicing, maintenance staff must ensure due care is taken if it is found necessary to conduct any operational tests whilst the machine guard is removed.
Residual Pressure
Due care should be exercised by maintenance staff to protect against any residual pressures that may be present in the machine as discussed in the maintenance sections
Organic Peroxides
Particular note should be taken that materials utilised for the various fluid parts of the machine are specifically selected and designed for use with Organic Peroxides and resins The nature of organic peroxide catalysts can be reactive with certain metals and plastics. It is therefore imperative that when renewing parts during maintenance, only genuine MVP Ltd component parts and spare parts be fitted to the machine.
Leaks & Seals
Any leaks that become evident either compressed air or fluid from machine piping or fittings must be investigated and corrected as soon as they become evident. Any fluid leaks or spillages of resin, catalyst or solvent must be immediately cleaned from machine parts or surrounding area. Cleaning materials used must be safely disposed of in accordance with recommendations as described on the appropriate MSDS
Safety Notices
All safety use recommendation and warning labels displayed upon the machine cover and chassis must be maintained clean and visible to the operator.
Cleaning external surfaces
Do not use solvent based cleaners on the counter or the Resin Gel Alarm (RGA) system. All metal parts including the entire Stainless steel chassis and facia may be cleaned with solvent cleaners.
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2.0 Instrumentation and control familiarisation
To switch Air supply ON to machine.
E Stop Button
Reset Button
1. Release E stop - Turn counter clockwise to allow spring up action
2. Press Blue reset button on side
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To set resin outlet line
install 9 vdc
+
ess
Counter reset
Count set
Note the PDC Counter can only be adjusted when PDC white button is continuously pressed whilst pressing each counter button to select predetermined count number.
Note. If counter is set to zero then it is NOT possible to pr green start
Adjust air pressure to pump motor to at least 1 bar (15 psi)
To recirculate the operate this control to ON ( turn clockwise ¼ turn)
To inject Press this button IN
To adjust Catalyst ratio turn to right to increase ratio. Turn to left to decrease ratio
pressure limit, adjust to at least 0.5 bar (7 psi)
To flush head, Pull OUT for at least 30 seconds.
Resin Gel Alarm. To activate – battery. See
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during recirculation. It should be adjusted
downwards) during pump movement.
Catalyst flow
The Catalyst Bottle mounted at the rear of the machine is fitted with a glass tube to allow observation of catalyst flow
to remain visible by tightening in position
Above is a typical view of the catalyst flowing down the glass tube during re-circulation. This flow should be seen for each stroke (upwards or
Before proceeding to connect air supply to the machine ensure for safety reasons the following steps are taken. Refer also to image files in Last section of this manual
Emergency Stop/ ON/OFF button is pushed down and locked - Machine OFF.
Solvent/Air flush switch is off (Pushed in)
Pump Start/Stop recirculation Control is switched to OFF as marked (90º turn)
PDC counter is set to zero 0000 counts and reset is pressed once firmly
Catalyst Ratio arm guard is screwed into position.
2.1 Connect shop air supply to machine located at rear top of machine chassis (8mm Push fit connector) Yellow 8mm pipe supplied
2.2 Switch on air by partially rotating anticlockwise RED Emergency Stop/ON/OFF button. This will enable it to turn the air ON by spring UP action.
2.3 Press blue pushbutton marked “RESET”
2.4 Check machine pump operation by first clockwise increasing the Pump speed regulator control to preset to 2 bar shown on Pump speed Pressure gauge.
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2.5 Check Mix resin pressure regulator is preset at 1 bar shown on Mix resin pressure gauge by clockwise increasing Mix resin regulator control.
2.6 Rotate to recirculation switch Pump control clockwise (90º)
2.7 The pump will now operate.
2.8. Turn Pump recirculation switch counter clockwise to OFF position
3.0 Priming SSB fluid sections. Catalyst, Resin, Solvent and pump Lubrication.
NOTE - For safety reasons it is essential when carrying out any manual activity on the lower guarded machine pump section that the machine is switched OFF.
3.1 Switch Machine OFF and for security isolate air by depressing E stop red button which will lock down in OFF position
3.2 Fill Solvent cleaning tank with at least 5 litres of Acetone (see caution note below) Maximum 20 litres. Use smaller white filler cap opening to do this. Replace cap (Do not fill solvent tank through the large RED cap.)
Caution Note- DO NOT FILL the cleaning tank with solvent when the machine is fitted with the SP3-NSH non solvent water based cleaner system tank. Use only water based cleaner in these circumstances. E.g. RST-5 and HtwoO proprietary liquid cleaning systems The SP3 NSH tank is marked as such and is distinguished by external electrical heater attached.
3.3 To enable access to fill the Catalyst bottle, first the black plastic catalyst feed pipe bottle top union must be loosened to release the grip on the catalyst feed pipe. With this done, unscrew the white bottle cap and fill bottle with the appropriate catalyst for Polyester resin to be used. Replace cap and finger tighten the catalyst feed pipe once the filter end is immersed and is touching the bottom of the catalyst bottle.
3.4 Place resin pickup pipe into suitable drum of pre accelerated polyester resin. Secure pipe so that as resin container becomes empty (Lighter) the resin feed pipe does not pull the container over causing a spillage. Also place resin recirculation pipe end securely
into resin container.
3.6 Set Catalyst ratio to Maximum Ratio by switching the MotoCat control to move the Catalyst pump to the rear max. ratio. Note the motor will automatically stop when this point has been reached.
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3.7 Operate recirculation to ON position and observe Catalyst and Resin pipes prime with their materials. Continue until recirculation both resin and catalyst recirculation pipes indicate flow back into the resin tank and the Catalyst bottle to ensure full priming of all fluid sections.
NOTE. If the catalyst does not prime easily it is possible to loosen the catalyst pipe union at the head catalyst inlet. (See Catalyst Auto Valve drawing 22422-8 pipe union part number
0153). By loosening this union the down stream air can easily escape during initial priming of the pump. Once the catalyst fluid has reached the pump, stop priming and re tighten this union 0153 before continuing thus preventing Catalyst spillage
This initial priming method is only used for initial priming of a new machine from empty. It is NOT necessary to use this method again once the machine has been in use.
3.8. Stop pump and prepare to prime head block and mixer for the first time.
3.9 IMPORTANT. Attach the 1 metre priming Pipe securely with quick release connection to Mixer outlet point. Secure the other end in a waste container. Alternatively the Turbo Autosprue (TAS) may be connected but so that it does not open during this initial priming exercise simply do not connect the 4 mm TAS red signal line. However do secure the clear 10mm drain pipe safely to a waste container.
3.10. Set pre determining counter to at least 10 counts and press counter reset button
3.11 Press inject green button. The pump will start and then stop after the predetermined volume of resin mix has been dispensed into the container.
3.12 The RGA Resin Gel Alarm will sound within n30 seconds (see separate section on RGA at the end of this section 3.)
3.13 Operate (Pull) solvent Air flush control. Allow machine head and mixer to flush clean and dry out with air flow for about 35 seconds. Return solvent /air flush control to off position. (PUSH IN)
b/ The machine design has build in safety preventing inadvertent operation of the flush if the operator attempts to flush during injection. The flush control will only be active when the machine is NOT injecting
The machine is now fully primed and ready for first mix and gel test before production operation.
3.14 Resin Mix gel time test
It is important that the mixed resin reactivity (gel time) needs to be checked before injecting a mould. It is wise therefore to make a test mixture from the machine mix head in
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order to determine this gel time exactly at the ambient temperature and for selected catalyst ratio.
To carry out a mix and gel test set the desired catalyst ratio and then simply follow the same procedure from stages 3.9 to 3.13 above but direct the mixed resin safely into a gel test container. Once the resin mix sample has been dispensed and the machine has stopped, place the resin outlet pipe securely into the waste container before flushing the head and pipe.
3.15 General notes on gel time.
a/ It is wise to set and confirm gel times at least 30% longer than mould fill time b/ Remember that UP resin will gel twice as fast for a 10°C increase in resin temperature. c/ Be aware that cool resin is significantly more viscous than when at normal room temperature. In these circumstances allow more time to fill the mould and thus more time for gel time is needed to ensure mould fill without pre gel condition. d/ As a guide, MVP’s experience has shown a general UP low viscosity resin suitable for injection has given the following general specifications on gel time Using 6% strength Cobalt Naphthalate ( 6% CN) as the primary accelerator and AAP catalyst
0.1% CN = 1 hour gel time with 1% AAP catalyst
0.2% CN = 20-30 minutes gel time at 1 % AAP catalyst
0.3% CN = 15-25 minutes gel time at 1% AAP catalyst A typical 20 minute gel time would be formulated with 0.2% CN with 2 % AAP catalyst
ratio setting. These figures are given as a guide and must be checked for your chosen UP resin
system. Some resins are supplied already accelerated however users often add more CN accelerator to speed u the resin gel time if found too slow.
4.0 Machine Operation
4.1 RTM or Light RTM operation
4.2 Adjust Catalyst ratio to required setting
4.3 Attach Mould to Mixer output point using 10 mm nylon pipe or via Autosprue® or Turbo Autosprue brass quick connect. IMPORTANT –Ensure this is locked into position.
Notes a/ Additional lengths of 10mm pipe are available from MVP Ltd.
b/ The TAS 4mm red signal pipe is connected to the SSB chassis connection on the left hand side 4mm central connector marked Autosprue signal.
Note- do not mistakenly connect to the lower 4 mm chassis connector as this is a remote start optional connection and if connected to the Turbo AS it will actually start the machine.
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These are marked and located on the LH side of the chassis next to the Mixer output point. see diagram illustration at end of this manual referring to additional connections.
Note – The 6 mm Autosprue connection at this location is no longer required for the latest Turbo Autosprue (TAS) and should remain plugged. However this point can be utilised by the user as an air gun pressure connection point or to the Vacuminder.
4.4. Injection operation start and stop Injection is carried out by setting the Pre determining counter (PDC) lower number set to
the expected volume of resin required. Each digit count represents a volume of resin approximately equal to 38 cc. To determine exactly the volume collect 10 strokes of resin accurately from the recirculation resin hose end and observe how much it weighs or volume for the 10 strokes. If 10 strokes measure 380 ml (0.38 Litres) then each stroke (numeric count on the counter will give a volume of 38cc. . Be aware that a count of ten should only be made once the mixed resin has filled the mixer and pipe
Once the predetermined counter has been set and the PDC counter top LH reset button has been pressed firmly and the outlet pipes are connected to the mould simply press in the green start injection button. The machine will now open both the head resin valve and catalyst valve and internally provide the machine control with a confirmation signal to start. The machine will dispense/inject the PDC volume of catalysed resin. Speed of injection can be adjusted by the pump speed regulator. Upon reaching the PDC set count the machine will stop automatically and the head valves and Autosprue will close safely.
4.5. Once the machines stops, the Resin gel alarm (RGA) will sound after 30 seconds (if flush is not operated) to warn that the head needs to be flushed. Operate the Flush pull switch for a minimum of 30 seconds. As soon as this switch is activated to flush the alarm (if sounding) will cease but the red flashing warning will only extinguish after 30 seconds confirming that sufficient air drying time has elapsed.
Note if the flush control is pushed in, to stop flushing sooner than 30 seconds the RGA alarm will sound once more warning that not sufficient time has been allowed for the recommended air dry out time. If this happens simply operate the flush pull switch once again and only push back in to stop after 30 seconds has elapsed which is confirmed by the RGA red flashing light ceasing and the RGA going back into sleep mode (No lights and no alarm.) Note if a count of resin is set greater than required it is necessary to stop the machine manually. To stop the machine under this circumstance simply hit the E stop followed by unlocking the E stop and pressing the blue reset button. .For security reasons the machine systems will not allow flush if the green start button is depressed ON. Only the
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count reaching the pre determined count or hitting E Stop and resetting the machine to ON will allow flush to take place.
Finally if a count on the PDC was set too little and more resin is required to fill the mould simply press the PDC rest button followed by pressing the green start button once again. As this selects the original count set, the machine will now continue to pump until the full reset count is achieved. Stop the machine as described above in these circumstances and record the number of extra counts the mould needed. This will allow a more accurate count to be set for the next injection cycle on the same mould.
5.0 Shut down
5.1 Operate the pump to the down stroke limit by using of the recirculation switch. This ensures that the resin pump piston shaft remains unexposed to air during shutdown and thus lengthens the life of the shaft seal.
5.2 Turn off machine air supply by pushing the emergency stop button to OFF locked position.
6.0 Routine Maintenance
General. Ensure working parts of machine are kept clean. Also ensure all controls and indicators remain clean. The gauges are glass faced and can be cleaned with solvent however all other plastic controls should be cleaned with non solvent based cleaners. Remove all spillages from machine. Immediately correct any air leaks or seepage of any fluid from machine.
6.1 Resin pump. During normal use the resin pump lubrication cup needs to be topped up with pump lube. This should be checked at least once a week during normal daily production use. See separate sheet on internal part maintenance in section 9.0
6.2 Catalyst pump and feed and recirculation pipes. The catalyst pump needs no regular maintenance however any seepage producing catalyst spillage from the machine from catalyst pump top seal indicates catalyst pump top seal replacement. See separate sheet on internal part maintenance in section 10.0.
Please note seepage of catalyst NOT producing leakage onto the workshop floor from this point on the catalyst pump is acceptable.
Visually check security and condition of catalyst feed pipe from Catalyst bottle and smaller recirculation pipe and all associated fittings. If any show signs of wear, seepage or damage, replace with new parts immediately. Ensure Catalyst feed pipe is routed from catalyst bottle to pump lower fitting around the right hand outside of the machine chassis
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The catalyst inlet filter located within the catalyst bottle should be removed and cleaned in solvent and water at least every 4 months.
The Catalyst bottle internals must remain clean. If catalyst appears to be discoloured or any form of sediment is observed within the catalyst bottle remove and clean as necessary and dry out before replacing with fresh catalyst and placing back into service. Use only water through the catalyst system if cleaning is necessary. Do not use or pump solvent based cleaners in the catalyst fluid section
6.3 Solvent Pump system. The Solvent tank requires no routine maintenance however if dirt particles as sediment accumulate within solvent tank base remove and clean and refill with fresh solvent.
The remaining solvent system should only be routinely maintained by weekly checks to locate any leaks or damaged pipes which should be repaired immediately.
See separate sheet on internal part maintenance in section 12.0
6.4 Mixing head assembly. The Resin mix pressure sensor (Mould Pressure Guard ­MPG) has an internal diaphragm which should be renewed periodically. A renewal rate after every 10,000 Kg mix usage is recommended. See sections 11.0 and 11.1
7.0 Maintenance
Important Safety Note All maintenance work on the machine must be carried out with the
air supply to the machine disconnected and due caution must be observed when opening all fluid and pneumatic connections by using personal protection against possible internal residue pressures.
The following sections describe seal and internal fluid section maintenance procedures accompanied by assembly and parts drawings.
Maintenance feature for ease of access.
It is now possible to remove the entire Patriot fluid section once the air pipes and fluid pipes have been disconnected. There are NO bolts holding this section in the machine. Instead the unit is locked into position with an over centre lever lock.
It is a simple and rapid procedure to remove the pump and is recommended if any main maintenance operations are to be carried out on this section. Proceed as follows.
1. Lift catalyst and resin intake wands above fluid levels and recirculate to empty both fluid section.
2. Remove pump guard and the resin outlet and catalyst outlet pipes. Take care to mob up slight fluid seepage from these unions as they will still have a small residue of fluid
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1
2
3
4
5
1
2
Remove guard Disconnect resin outlet Disconnect Catalyst inlet and outlet
3. Disconnect 5 pneumatic pipe connection at rear of pump air motor and 2 at front on MotoCat .
Disconnect 5 pipes to pump air motor ↑
Disconnect 2 red MotoCat feed pipes
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