The New Technology of the Open Press Is to Use the Switching Magnetic Resistance Servo Motor Drive of Cohui

Open press generally refers to the crank press, is the use of mechanical drive forging machinery, through the transmission system to the motor movement and energy to the working mechanism, so that the blanks get a definite shape.

The new technology of the open press is to use the switch magnetic resistance servo motor drive, eliminated the rigid clutch, realized the emergency braking at any point, eliminated the hidden danger of pressure hand, and ensured personal safety. Today we summarize common failures and solutions for open presses.

The load is uneven.

There is residual gas in the system, which can be operated by the relevant content in the third item and the lower oil pipe connector on the back of the cylinder is released.

The oil pump motor does not work.

Replace the fuse.

The display is not displayed.

(1) Replace the fuse.

(2) Remove the rear cover plate to check that the power cord connection is secure.

The display shows an abnormality.

After power is off, open the rear cover to check that the sensor input plug-in is reliable and, if intact, to check that the sensor is OK.

The oil pump does not produce oil: it is the oil pump that may have entered the air, or the pipeline is blocked by debris.

Unstable oil pressure: There is a leak in the pump, or the viscosity of the oil is too small.

The output of the oil pump is unstable: there is air entering the pipeline, or there is dirt in the piston of the oil pump, or there is a leak.

The needle does not return to zero after the pressure is released: it is possible that the gear of the pointer is stuck by debris, or that the swing rod breaks, etc.

The swing rod falls back too fast after the test piece is destroyed: it is too thin oil.

The needle is unstable after the machine is started and swings back and forth: the force piston is not installed in place.

The display value of the pointer has a large error: it is a foreign object at the force piston that has an effect on the pointer. Or the friction between the cylinder and the piston is too large.

There are many reasons why the oil pressure does not reach the maximum load, such as the force measurement piston and its sleeve sleeve is too tight, there is oil leakage, the gap between the working piston is too large, the spring force of the oil delivery valve is too small.

The rudder falls back too slowly: the viscosity of the fluid is too high, or the gap between the buffer valve and the valve port is too small.

The sound caused by the breakage of the test piece is too loud: the gap between the cylinders is too large, or the piston of the oil pump is rising too high.

The test piece is pressurized into a one-sided broken state: it is that the model does not match enough, and the product is defective.

Summary: The above is the small compilation for everyone to introduce the hydraulic press and hydraulic press failure cause of all the content, the content is not a lot, but are very practical.