1. Mechanical installation
1 PU foam machine should be installed in the light of good ventilation window position, and to ensure the smooth passage of the track, the track on both sides to set aside enough space for mold. Space for the storage of raw materials and accessories.
. in laying machine rail track is best with 5cm channel, directly buried in the underground, and the ground buried, in edge channels open two 1cm wide slot. The depth is as deep as the fixed side of the machine wheel. So convenient to pull the forklift, change the mold. Also available as a centimeter thick steel laid directly on the ground and expansion screw fixed, for the track and in the wheels of the machine with fixed side that two parties, a groove, let the machine wheels just parallel in orbit.
I saw some factories use 5cm of the channel, the direct use of expansion screws fixed on the ground, ground 5cm, so if production to replace the mold, you cannot directly from orbit to pull off. Some also have to go around the production line, to change the mold. This is time-consuming. (workshop installation crane crane's mold)
3. In the machine right in the middle of the front and rear wall 3 meters high position around the screw expansion in a, (to the hook of the kind) to facilitate the pull rope, hanging cable and trachea. In the distance according to the wire rope left side and the right side of the 1 meters position, each pull a rope, Guaqi tube and the release agent tubes used.
Release agent can best be used with that kind of sealing spray paint tank, with the kind of mixing, or the release agent is not long time does not stir, will precipitate, which will be very light, the release effect is not good, easy to appear the bad condition of the product. Used in the back, it will be very strong, stripping effect is good, but to the back section of the process to do paint will appear trouble, affect the paint and product adhesion.
4 power supply configuration cabinet should be installed in the rear of the machine, convenient machine connection and not waste cable.
In order not to be dangerous, the machine is in order to be safe for you and others. Must be grounded. Or else you're going to be back before liberation. So this procedure is not the province of.
5 start the power switch to observe whether the power supply voltage is normal. Some areas of low voltage, it should be configured with a voltage stabilizer.
6 start B A pump motor, observe whether the operation is normal or not. At the same time, starting the B A mixing motor, observe whether the normal operation.
7 each installation must be stopped before mixing, the machine power, to prevent accidentally touched the head operation button, and fire. After installed stirring blades, such as accidentally touched the nose operation button, then sharp blade, if stirring hands and other parts, think the consequences will be very serious. When the stirring device leaves, remember above the head box with a small hole, to insert a screwdriver blade shaft is fixed, otherwise the machine mixing blade cannot be installed, will fall into the endless rotation. Be sure to turn off the power before operation, there are people in the operation without power, because the side of the people do not accidentally touched the rotating button and stirred his thumb, remember.
Head part of the belt pulley and the transmission shaft, drive shaft is the motor is installed below a shaft, mixing blades are mounted directly on the shaft lever, no transmission, the motor is to transfer the number, the mixing blade is the number of turns, such a nose often fail to perfect mixing effect. Often have the phenomenon of mixing. The belt wheel is installed in the motor, a big wheel, to speed in a stirring blade is provided with a ferry. So as to improve the machine stirring. To achieve the desired effect of stirring.
8 in the process of machine feeding, the air pressure in the storage tank should be put in place. And then feeding, to avoid the face of the air outlet valve. MC storage tank is the same, in the case of pressure, adding MC to the inside, fill sealed, pressurized.
I saw in the feeding process, there is no material storage tank of gas pressure releasing is directly feeding and added it to the end, a material storage tank bear the pressure and brace detonation 1cm thick watch glass. The raw material sprayed throughout the workshop are, even a few meters high beam spray material. Fortunately, no one was in the rear of the machine, or glass fragments hit who, the consequences will be unbearable to contemplate. Two years ago, Dongguan, a polyurethane enterprise of this phenomenon, then operator for pressure blasting material cylinder hit his face, hospital for six months, resulting in facial disfigurement, remember.
9 machine if it is equipped with air conditioning system (machine has the advantage of air conditioning system, the winter temperature is too low, to raw material AB material viscosity increased, the flow is not good, the flow is not allowed. Foaming rate decreased. Not easy to fill the entire mold. Products are more prone to bubbles. At this time you need to heat the machine to solve.
The machine storage tank is a double wall. Xun central machine water tank, heating the water back and forth, when the temperature of the materials will also gradually increased, raw material viscosity decreased, but to achieve the ideal effect.
Summer temperature is too high. Foaming time will be in advance, the surface hardness will be reduced, serious when there will be burning skin and other phenomena. Sometimes too late to close the mold began to foam. This time to cool the raw material. Open machine cooling system. (in general, the temperature control of the raw material is about 25---28 degree.)
System of temperature rising and cooling. You need to open the hood air conditioning, there are a water storage tank, the inside filled with water. When the water tank is filled with the, and then start the pump switch. Let the water in the storage tank in the mezzanine of exploding ring. You'll see the water in the tank is getting less and less. When the water tank is almost out, turn off the water pump, and then add water to the tank.
Back and forth