Sealing regulating valve device

Abstract

The invention relates to a regulating valve device, in particular to a novel sealing regulating valve device used for regulating vacuum degree of an extruder, and provides a sealing regulating valve device. The sealing regulating valve device comprises a pressure regulating valve cover 1, a pressure regulating valve body 5, a tapered valve spool 7 and pressure regulating valve bases. The pressure regulating valve cover 1 is n-shaped and fixedly connected with a long shaft and a round nut 2; the upper portion of the pressure regulating valve body 5 is a hollow cylinder, the lower portion of the pressure regulating valve body is concave inwards and is in the conical convex shape, small holes are formed in the periphery of the top of the convex shape longitudinally and penetrate the side wall of the pressure regulating valve body 5 transversely, the long shaft penetrates the pressure regulating valve body 5, and a square nut 4 and a spring 6 are arranged on the long shaft located in a cavity of the hollow cylinder of the upper portion of the pressure regulating valve body; the tapered valve spool 7 is arranged at the lower end of the long shaft; the pressure regulating valve bases include a pressure regulating valve base A8 and a pressure regulating valve base B10, and the pressure regulating valve base B10 is sleeved on the pressure regulating valve base A8 to be fixedly connected with the same; the square nut 4 and the spring 6 are arranged below the round nut 2 coaxial with the long shaft; the tapered valve spool 7 is located in the conical convex shape of the lower portion of the pressure regulating valve body 5 and overlapped and sealed with same. The novel sealing regulating valve device is simple and reasonable in structure and suitable for various extrusion devices with requirements on the vacuum degree; the difficulty in regulating the vacuum degree of extrusion and production equipment by operators is solved, time is saved, and labor rate is increased.

Description

technical field [0001] The invention relates to a regulating valve device, more precisely a novel sealing regulating valve device for regulating the vacuum degree of an extruder. Background technique [0002] At present, many different extruder production equipment have different requirements for vacuum degree, and the existing vacuum degree adjustment device is completed by a combination of ball valve and needle valve. First, the staff try their best to make the vacuum degree of the production equipment meet the required vacuum degree by adjusting the ball valve, and then adjust through the needle valve to achieve the required vacuum degree. However, sometimes the vacuum degree has not reached the ideal state after adjusting the needle valve, which means that there is a problem with the adjustment of the ball valve before, and the ball valve needs to be adjusted again to make the vacuum degree reach the ideal state. Repeating this not only wastes time and labor but also vi...

AI Technical Summary

Problems solved by technology

However, sometimes the vacuum degree has not reached the ideal state after adjusting the needle valve, which means that there is a problem with the previous adjustment of the ball valve, and it is necessary to adjust the ball valve to make the vacuum degree reach the ideal state.

Repeating this not only wastes time and labor but also virtually increases the difficulty of vacuum adjustment, so this technical defect has become a technical problem to be solved urgently by those skilled in the art.

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