Lifting device applicable to full-automatic viscosity measurement

Abstract

The invention discloses a lifting device applicable to full-automatic viscosity measurement. The lifting device comprises a piston module, a valve way module and a viscosity tube, wherein the piston module and the valve way module are connected by adopting a connecting hose, a piston mechanism comprises a transmission shaft sleeve, a glass needle cylinder and a piston plunger, the transmission shaft sleeve is connected with the glass needle cylinder, a transmission lead screw passes through the transmission shaft sleeve, the two ends of the transmission lead screw are respectively connected with a piston motor and the piston plunger, a fourth electromagnetic valve, a first electromagnetic valve, a second electromagnetic valve and a third electromagnetic valve are respectively connected with a main measuring tube by virtue of a connecting hose, the third electromagnetic valve is connected with an air valve by virtue of a connecting hose, a fifth electromagnetic valve is connected with an emptying pipe, and the fourth electromagnetic valve is connected with a feeding emptying pipe. The lifting device disclosed by the invention has the advantages that the whole full-automatic viscosity measurement process becomes a full-automatic process, workload of an experimenter is reduced, and safety problems are reduced.

Description

technical field [0001] The invention relates to automatic online sample feeding on a fully automatic viscosity measuring instrument for polymer materials, automatic lifting of samples during automatic measurement, automatic online cleaning of viscosity tubes, automatic online drying of viscosity tubes, and five major watersheds of online long-term soaking and cleaning of viscosity tubes; More specifically, it relates to a lifting device suitable for fully automatic viscosity measurement. Background technique [0002] In petrochemical, chemical fiber and other polymer fields, the measurement of polymer viscosity or viscosity-average molecular weight is a very important indicator for testing product performance, such as in polyester PET, PBT, nylon PA6, PA66, etc. Polycarbonate PC, polyvinyl chloride PVC, polyacrylonitrile PAN, polyacrylamide PAM, polyvinylidene fluoride PVDF, organic silicon, organic glass PMMA, polylactic acid PLA, PGA, cellulose CA, MCC, and other polymer m...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a lifting device suitable for full-automatic viscosity measurement, which solves the problem that the automation degree of the current domestic viscosity meter is not high, resulting in low efficiency of instrument use, requiring many experimenters and heavy workload, and loading and unloading viscosity. When cleaning the viscosity tube and the viscosity tube, it is easy to cause damage to the viscosity tube. The cleanliness of the viscosity tube is affected by human factors. Experimenters must often come into contact with corrosive reagents, which is likely to cause personal safety problems

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