As we know, vacuum
packaging machine is done through vacuum pump with vacuum packing, in the process of its work, the corresponding need to rule out of air inside the bag, but don't need to compress air, in a sense, it does not need to use air compressor, but it is not the case.
Vacuum
packaging machine, then, what is the cause of the air compressor used?
Outside type vacuum
packing machine is to directly into the bag for vacuum suction mouth, after the completion of instantaneous gas mouth sealing processing is put forward.
So, gas mouth up and down movement is driven by cylinder, the outside so the type vacuum
packing machine is need to use the gas source.
Air compressor working principle: when the motor drives the crankshaft rotates at a certain speed through the connecting rod, crosshead rotation into the reciprocating movement of the piston within the cylinder: when the piston moves from left to right, the left cylinder chamber volume increases gradually, the decrease of the pressure to produce vacuum.
Then, the external air at atmospheric pressure under the action of began to inhale, pushed open the suction valve into the cylinder until the piston moves to the right endpoint, suction valve closed, did not come to an end inspiratory process: when the piston begins to move backward, the left cylinder chamber air is compressed, the pressure rise.
Rise when pressure is high to a certain value, the pressure valve to exhaust all, until the piston moves to the left endpoint, exhaust.
Piston moves to the right again when the remaining of compressed gas in cylinder began expanding until the suction valve to open, this air compressor is complete a working cycle.
The structure of piston type air compressor: 1.
: vertical air compressor cylinder and the center line perpendicular to the plane;
2.
: horizontal air compressor cylinder line parallel to the ground plane, cylinder in the fuselage with a side;
3.
Angle type air pressure type: the middle route of the cylinder has a certain Angle, according to arrange assumes the shape of the cylinder, and L.
V.
W shape and fan.
Which type air compressor has been widely applied in coal mine;
4.
: symmetrical balance type air compressor cylinder line parallel to the ground, the cylinder at the fuselage sides respectively.
Known from the analysis of the above content, need to match the air compressor is mainly used to smoke outside type vacuum packing machine, because it need to use the air in the work, this is an important factor that will affect the packaging effect.
In addition, from the content above, we can also for the classification of the piston air compressor and a variety of structural form has a more detailed understanding, believe that we can let you know about this kind of configuration there is a simple.
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