A kind of automatic filling and sealing rotary valve for cream

Abstract

The invention relates to a fully automatic cream potting rotary valve, comprising a valve core and a valve sleeve, the valve core is rotatably fixed in the valve sleeve; the valve core is a stepped shaft, which is divided into a shaft body, a second A journal and a second shaft diameter part, the first journal is sleeved with a first bearing, which is located close to the shaft body, and the second journal is sleeved with a second bearing, which is located close to the shaft The shaft body; the top surface is connected with the first flange, the bottom surface is connected with the second flange, and the three remaining sides are respectively provided with the first valve sleeve hole, the second valve sleeve hole and the third valve sleeve hole , the first valve sleeve hole and the second valve sleeve hole are arranged opposite to each other, the axis of the third valve sleeve hole is perpendicular to the axis of the first valve sleeve hole and the second valve sleeve hole, through Bearing structures are arranged at both ends of the valve core in the rotary valve, which solves the problem of severe wear and even fracture of the valve core and valve sleeve in the prior art, prolongs the service life of the rotary valve, and avoids the drive shaft or motor from being stuck and damaged by the rotary valve.

Description

technical field [0001] The invention relates to the technical field of rotary valves, in particular to a fully automatic filling and sealing rotary valve for cream. Background technique [0002] Rotary valve is a fast-switching straight-through valve. It is a control component in the pipeline fluid delivery system. It is used to change the passage section and the flow direction of the medium. Pressure relief and other functions, the rotation of the cylinder drives the valve core to rotate, so that it can realize the quantitative filling of the paste in the discharge hole, which is mainly used in the filling of pastes that are not easy to fill, such as medicine, food, and daily necessities. Occasionally, its filling precision is high, it can work independently, and it can also be used in conjunction with a large filling production line. [0003] However, in the production process of the automatic paste filling machine in the prior art, in order to facilitate the rotation of ...

AI Technical Summary

Problems solved by technology

The rotary valve assembly of the injection molding machine can make the external extruder cycle and continuously inject and feed the two injection cylinders, and at the same time keep the raw material in a high-pressure state to prevent the occurrence of foaming. After operation, there will be misalignment with the rotary valve body, resulting in friction, causing the rotary valve shaft to break and affecting production

[0005] Chinese patent document CN109723863A discloses a rotary valve of a pneumatic rotary valve plunger pump, including a rotary valve housing, a valve core connecting rod, a rotary connecting rod gland, a feed liquid nozzle, a ceramic cylinder and a ceramic valve core; the rotary valve The casing is provided with a first flange and a second flange, which respectively have shell hole 1, shell hole 2 and shell hole 3. The rotary connecting rod gland is fixedly connected with the rotary valve housing, and The set opening is connected with the first shell hole; a ceramic cylinder is fixed between the rotary connecting rod gland and the second shell hole, and a ceramic valve core is rotatably connected inside the ceramic cylinder; the connecting rod of the valve core and the ceramic valve The core is fixedly connected and rotatably connected with the rotary connecting rod gland; the feed liquid nozzle is fixedly connected with the rotary valve housing, and the opening of the feed liquid nozzle is connected with the shell hole three times; the valve core and the cylinder barrel of the present invention are made of ceramics, and have High hardness, wear resistance, acid and alkali resistance, high temperature resistance, corrosion resistance, long life, dense material, high surface finish, tight fit, suitable for industries with high hygiene and health requirements such as pharmaceuticals and food, high filling accuracy, However, in this device, the friction force generated when the spool and the cylinder are dislocated causes torque to be generated between the spool and the connecting rod of the spool, which will eventually damage the connecting rod of the spool, cause the spool to stop, and cause an empty pipe phenomenon, affecting production quality

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