Two-component screw-down valve

Abstract

The invention discloses a two-component screw-down valve. The two-component screw-down valve is provided with a controller matched with the screw-down valve for use, a stator fixing seat used for fixing a stator and a motor used for driving a rotor to rotate, wherein two valve body outlets are formed in the stator fixing seat, and when glue is discharged from the screw-down valve, the controller is used for collecting and tracking the current of the motor in real time, and judging the pressure conditions of the two valve body outlets according to the current change of the motor. The two-component screw-down valve has the advantages that the installation space of a pressure sensor is not needed, the equipment cost is reduced, and the damage risk of the pressure sensor is avoided.

Description

technical field [0001] The invention relates to the technical field of screw valves, in particular to a two-component screw valve. Background technique [0002] When the two-component screw valve is discharging glue, the glue pointing out from the outlets of the two valve bodies is mixed through the mixing tube, and the glue starts to solidify after mixing in the mixing tube. If the hole diameter of the pointing needle is too small, the If the interval time is too long and the curing time of the glue is very short, these will cause the pressure to accumulate in the entire cavity where the outlet of the valve body is connected to the mixing tube, and the fluid pressure will continue to rise, which will cause fried glue in the weak part of the cavity (such as glue under high pressure conditions from The connection between the mixing tube and the outlet of the valve body leaks), and the rising fluid pressure will cause uneven glue output and affect the process. In the industry...

AI Technical Summary

Problems solved by technology

When the operator did not discover this situation in time, he tried to operate the two-component screw valve to discharge the glue, and the continuous output torque of the motor drove the rotor, but the rotor was subjected to continuous motor torque on both sides because the part inside the stator could not rotate. Risk of the rotor being twisted

[0005] For the two-component glue dispensing application process with different glue weights, the two-component screw valve has stator specifications with different single-turn glue output (including the matching rotor), but the stators of different specifications are interchangeable at the mechanical installation level Yes, this will cause the user to be unable to fully confirm the stator specifications assembled inside the two-component screw valve when using it. It is necessary to disassemble the screw valve to confirm the stator specifications, or find that the glue output is significantly larger / smaller during the dispensing process. The stator size does not match the required size

[0006] Because the rotor of the two-component screw valve is fully enclosed in the assembly structure, when the screw valve executes glue discharge, whether the rotor rotates and whether the speed is normal cannot be observed intuitively.

At the same time, when the motor cannot drive the rotor to rotate, it is necessary to disassemble the machine to check the condition of the rotor, which is time-consuming and laborious

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