A method for detecting the filling flow rate of thick fluid

Abstract

The present invention relates to the technical field of liquid material filling, in particular to a thick fluid filling flow detection method, comprising: step S1, filling the liquid material into a container through a filling device, that is, when the liquid material needs to be filled, Control the material nozzle driving mechanism through the control module to drive the material nozzle to move downward, so that the feeding end of the material nozzle extends into the container mouth; and control the solenoid valve to open through the control module, so that the liquid material in the material tank flows into the material nozzle through the material pipe and then flow into the container; step S2, transport the container containing the liquid material to the detection device through the conveying device; step S3, detect the filling flow rate of the liquid material in the container through the detection device; and step S4, by grasping The picking device grabs the underfilled container to the filling station or grabs the overfilled container to the rejecting station through the grabbing device. The invention can detect the flow rate of the liquid material in the container filled with the liquid material by the filling device, realize the monitoring of the filling flow rate and improve the filling quality.

Description

technical field [0001] The invention belongs to the technical field of liquid material filling, and in particular relates to a method for detecting the flow rate of thick fluid filling. Background technique [0002] At present, in the field of liquid filling, in order to ensure the filling quality, it is very necessary to monitor the filling flow. In order to improve the filling efficiency, electromagnetic flowmeters or load cells are generally used for flow detection. measure. Among them, the former is usually aimed at small-volume filling products, while the latter is aimed at large-capacity filling, and they have a good effect on the roll-on accuracy and filling speed of non-viscosity and micro-viscosity fluids. However, in view of the thick fluid itself Inherent properties and defects of testing equipment make the filling effect of flowmeter and other testing equipment very unstable for thick fluids. At present, it can be seen that most of the small-capacity fillings on...

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Problems solved by technology

Among them, the former is usually aimed at small-volume filling products, while the latter is aimed at large-capacity filling, and they have a good effect on the roll-on accuracy and filling speed of non-viscosity and micro-viscosity fluids. However, in view of the thick fluid itself Inherent properties and defects of testing equipment make the filling effect of flowmeter and other testing equipment very unstable for thick fluids. At present, it can be seen that most of the small-capacity fillings on the market are filled with flowmeters. It is used to measure the flow rate, but the equipment has requirements for the viscosity of the filling fluid. If the viscosity is too high, it will seriously affect the stability of the filling flow measurement. The specific performance is as follows:

[0003] (1) When the electromagnetic flowmeter measures, the flowing material must be completely filled with the tube body, but because the high-viscosity fluid is easy to generate air bubbles during the filling process, once the air bubbles flow through the flowmeter tube body, the material in the tube body is Non-full state, so this will lead to the measured material quality is actually greater than the actual flow of material, so this will cause a very serious error

[0004] (2) In addition, when the flowmeter measures highly viscous liquid, after the flowmeter is used for a certain period of time, the measuring electrode and the inner wall of the flowmeter tube will form material adhesion, and after a certain thickness is formed, the measurement error of the meter will increase

[0005] (3) Although weighing filling has high precision and is not affected by material temperature and viscosity, since weighing filling is filled by liquid self-flow, the production speed is limited, and the filling consistency of each filling head It will vary with the temperature and viscosity of the material, and needs to be adjusted continuously

In addition, since most thick sauces and viscous foods are packaged in small volumes, it is obviously inappropriate to use weighing filling

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