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M A G U I R E   P R O D U C T S ,   I N C .  

 

 

S e r i e s   M P A

 

START-UP PROCEDURE 

 

1.  Place color drum next to process machine. 

 

2.  Install pickup lance into liquid container for suction pickup of liquid, or attach 

tubing assembly in accordance with color manufacturer's recommendations. 

 

3.  There should be provision for attaching the poly-tubing to the process machine 

so as to allow color to be metered in directly over the feed section of the 
screw, or into a premixer if one is installed. Assuming provisions have been 
made, attach or install the poly-tubing to the process machine as required. 
(The best color mixing without color contamination of the feed throat of your 
machine is obtained when the color delivery tube is positioned approximately 
1/2-inch over the screw at the forward edge of the feed throat toward the side 
of the screw that is turning downward.) 
 
NOTE: Adaptor Plates are available from MAGUIRE PRODUCTS that mount 
between the hopper and feed throat. This will allow easy insertion and removal 
of the color delivery tube into the feed throat of the process machine. 
 

4.  Connect the power cords as follows: 

 
Plug the "CONTINUOUS POWER" cord into a standard 110 volt continuous 
power source. Plug "SIGNAL" cord into outlet that is energized only when the 
screw is turning. The signal can be as low as 24 volts, as high as 240 volts, 
either AC or DC. 
 
The "screw return" time and associated "SIGNAL ON" time must be at least 
one (1) second. If you are not sure that this is always the case, then it is 
advisable to select another source of power for the signal. INJECTION time 
would be an excellent choice for a signal. For very short overall cycle times, 
the CLAMP CLOSE time is usually the longest signal time available. When 
screw return times are shorter than 1 second, use the INJECTION circuit or 
CLAMP CLOSE circuit to provide power to the SIGNAL cord. 
 

5.  Set Counter to 20 and switch pump to 'CONTINUOUS'. Rollers should now be 

turning slowly. 
 
Lay the pump tube into the slot across the top of the pump head running front 
to back in a straight path across the top of the dowel pin rollers, positioning the 
brass tube-inlet fitting against the machined recess of the pump head. Draw 
the tube into position under the overhanging portion of the pump body and 
maintain tension while the turning of the rollers draws the tube into place. 

Содержание MPA-6 Series

Страница 1: ...eries MPA 6 MAGUIRE Series MPA 6 Six Roller Liquid Color Metering Pump with Automatic Speed Control INSTALLATION OPERATION MAINTENANCE Original Instructions Manual Revision Date March 26 2019 Copyrigh...

Страница 2: ...M A G U I R E P R O D U C T S I N C 2 S e r i e s M P A...

Страница 3: ...ion of Controls ______________________________________11 Formulas for Setting the Counter ______________________________13 Changing Colors____________________________________________15 Disassembly and...

Страница 4: ...no responsibility or liability for damage or malfunction of the equipment arising from non observance of these operating instructions To avoid errors and to ensure trouble free operation it is essenti...

Страница 5: ...process machine 4 Connect the power cords as follows Plug the CONTINUOUS POWER cord into a standard 110 volt continuous power source Plug SIGNAL cord into outlet that is energized only when the screw...

Страница 6: ...y primed set counter to 60 and run pump in the CONTINUOUS mode until color line is primed 7 Using the formula provided in this manual set the counter to the proper setting for the particular part you...

Страница 7: ...nal microprocessor to allow color metering to occur uniformly over the entire screw return cycle The operator need not concern himself with motor speed adjustment Changing cycle times or fluctuations...

Страница 8: ...at the same height above the process feed screw as the color feed When REGRIND metering starts COLOR metering is reduced accordingly For this reason both components must enter the material flow near e...

Страница 9: ...in the forward direction As the tube behind the roller springs back to its original round shape the expanding inside cavity creates a vacuum that draws liquid into the tube At least one roller is alw...

Страница 10: ...scosities similar to or lower than latex paint or easy pouring syrup Viscosities so high that they do not readily pour can also be pumped but at considerably reduced maximum rates While the pump is a...

Страница 11: ...h one exception if the RANGE switch is in the LOW resolution position turned to the right the motor will ONLY run when the SIGNAL cord is energized 2 MOTOR FORWARD REVERSE SWITCH This switch should be...

Страница 12: ...s switch will force the controller to run a proper CALIBRATED output This output in grams is used in the SETTING formula CONTINUOUS MODE The motor will ONLY run when the SIGNAL cord is energized In th...

Страница 13: ...LBS of natural required or KILOS of COLOR per 100 KILOS of natural 3 Determine the METERING RATE in grams 100 counts 4 Set the digital counter using the following formula lbs hr x lbs 100 grams 100ct...

Страница 14: ...ight of liquid color 12 lbs per gallon Green tube C factor 1 3 400 x 1 2 x 1 3 12 52 Set Counter on 52 EXTRUSION Continuous Mode 1 Determine the extruder output in pounds per hour 2 Determine the perc...

Страница 15: ...are installed directly into the lid of the drum The other end of the tubing assembly is connected to the feed throat of the process machine A common source of problems comes from contaminants such as...

Страница 16: ...e you can see water flowing from the other end of the tubing assembly leave the water running for about 10 minutes This should be sufficient time to clean all remaining traces of liquid color from the...

Страница 17: ...RLY 1 READ below about NORMAL OPERATION and compare to your problem 2 The QUESTIONS that follow may assist you in solving your problem 3 If you are unable to remedy the problem a ANSWER in writing as...

Страница 18: ...will always run at 10 RPMs To simulate machine cycles plug the signal cord in and out of a wall outlet Shortening of the on time will result in the motor running faster Lengthening of the on time wil...

Страница 19: ...d and the display BLINKS Full speed will display about 65 for 2 magnet models most 3 and 6 roller pumps and about 90 for all other models Extrusion Following models display about 180 at full speed BLI...

Страница 20: ...ity of low voltage condition below 100 ____________ On power up ____________ OR after running for how many hours ____________ Is problem intermittent ____________ How often ____________ TESTING result...

Страница 21: ...Y and as completely as possible will help us locate and correct any design weakness that might be responsible for the problems you are having IN HOUSE REPAIRS 1 If a controller fails to respond proper...

Страница 22: ...be turned off or may be faulty c Brushes on the motor may not be making proper contact with the armature Sometimes brushes stick in their holders A DC voltage at the motor leads without corresponding...

Страница 23: ...Be sure that TEFLON TAPE was used on all pipe thread connections on the suction side of the pickup assembly A vacuum leak is indicated if the pump pumps air out of the outlet without sucking liquid in...

Страница 24: ...rate in pounds per hour For injection molding extrusion rate is approximately equal to tons of clamping pressure i e a 500 ton press extrudes material at about 500 lbs hour A more accurate estimate ma...

Страница 25: ...he main supply pail 1 should be placed at the top of the stand and connected to the supply line The secondary pail 2 should also be connected to the supply line Step 2 When the main pail is low tilt u...

Страница 26: ...ther liability in connection with the sale of its products This warranty shall not apply to any instrument or other article of equipment which shall have been repaired or altered outside MAGUIRE PRODU...

Страница 27: ...9 4300 Fax 610 459 2700 Email info maguire com Web www maguire com Maguire Europe Tame Park Tamworth Staffordshire B775DY UK Tel 44 1827 265 850 Fax 44 1827 265 855 Email info maguire europe com Magui...

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