The DHR system can be configured to reduce the effect of bubbles on the product.
The PR70 system can be selected with the foam function.
The servo PR70 measuring system only needs to replace the measuring cylinder, which can make the glue change more quickly.
Nozzles are mainly for several reasons：
1When the controller corrects the nozzle without correction, the correct method for the nozzle correction is:
a.first, slowly turn the nozzle out of the liquid box
b.Press [the] to start the adjustment program
c.use a wrench to twist the nozzle to the liquid box until the red light is on, and the display is about 1100. The wrench will be turned clockwise until the green light, as shown in the figure above, ranges from 1030 to 1040. (make sure you don't exceed 1,250, or you'll break it.)
d.after adjustment, press ENTER
2.There are dirty things on the nozzle, you need to unscrew the nozzle unit, remove the nozzle and place it in the ultrasonic cleaning machine.
3.The pressure is too large or the parameter setting is not correct, you need to modify the parameter and reduce the pressure.
There are several reasons for this:
1.The nozzle is clogged and the nozzle needs to be cleaned
2.The pressure is too small to increase the pressure
3.The fluid viscosity is too large, the nozzle unit needs to install the heating block
4.The pin type is not right, it doesn't match the nozzle.
1.The nozzle choice is small, need to change big nozzle
2.Increase the pressure, the greater the pressure, the more glue (but sometimes the larger the pressure, the bubbles).
3.Choose a larger firing pin, now we have two types of firing pin options, 0.7 mm of firing pin and 1.4 mm firing pin, the greater the firing pin choice, the more the quantity of glue. The controller 控制器
4.The flow is blocked and the drain is needed. (be sure to remove the ring when cleaning the runner.)
1.Invalid glue valve data errors. 。
Corrective action: sensor connection inserts are incorrect. Please close the controller and reconnect.
2.The valve is too hot and the monitor displays MDV TEMP HIGH,PELSE WAIT
Corrective action: turn off the system and cool it for a certain amount of time.
3.When modifying the program parameters, the new values will not be able to be stored in the EEPROM.
Corrective action: restart the controller.
At present our company has two kinds of screw valve, metal screw and ordinary screw valves, metal screw valve with encoder, dispensing accuracy than conventional screw valve of high precision, metal screw corresponding mode is pump valve - E, ordinary screw corresponding mode is pump valve, if ordinary screw valve mode into pump - E, the controller will be crashed. There are three kinds of screw joints,nd the screw has 6,8,16 three types.
Large screw and high precision. Small screw large amount of glue is low.
Minimum needle: no. 34 diameter: 0.095 mm, diameter 0.02 mm.
Common problems with screw valves:
One, the glue is unstable: there are two kinds of reasons, electrical and control problems
Motor problem, motor wear, need to change motor, the motor rotor side have glue, need to be disposed of glue.
The controller has a problem: program problem, need to replace the chip; The screw and needle are chosen in the wrong type, and the right screw and needle are chosen.
Two, the needle glue does not work when to go down, the reason may be the pressure is too big or the needle that chooses is too big
Three, needles hang plastic: processing method, switch to the right screw, generally small amount of adhesive, the selection of low viscosity 16 screw, large amount of glue viscosity 6 or 8 large selection of screw, increase the absorption time back.
Four，the quantity of glue is small: change use big screw, increase air pressure, increase the voltage of the controller, the voltage is bigger, the more the amount of glue is out.
Five, selection of needles, for some glue will have an impact with the needle, should choose the coating teflon needle, needle type and size of the company in the brochure.
TS9200D belongs to the injection valve pneumatic type, working principle is to use high speed pneumatic driving firing pin high speed oscillation, the diaphragm/firing pin into the loop in the nozzle component, pressurized fluid into the firing pin with glue inside the mouth cavity, bump array will flow ejected from the nipple. Apply viscosity range 1-400, 000 CPS, range of 2% to 3%.
General questions: ：
One, different application requires different size of glue point, which can be set by the PULSE mode of the controller.
Two,the size of the glue point determines the size of the nozzle and the nozzle of the nozzle is 125um, 150um, 200um nozzle
Three,the fluid properties determine the material of the diaphragm, which has EPDM and silicone.
Four,feed pressure and REFILL TIME affect the size of glue points. Generally excessive feed pressure and long REFILL TIME cause the focal point to become larger, and the glue point becomes smaller and even glue-free.
Five,the first point of compensation prevents the first minor phenomenon.
In cold glue valve cleaning choices with alcohol or water flow, the glue injection from the flow channel, hot melt adhesive valve selection silicone oil cleaning, will be filled with silicone oil flow channel, the next time you use only can use to rinse the silicone oil, protect the nozzle clogging.