Method for detecting filling flow rate of thick fluid

Abstract

The invention relates to the technical field of liquid filling, in particular to a method for detecting filling flow rate of thick fluid. The method comprises the following steps: S1, a container is filled with liquid by a filling device, that is, when the liquid is required for filling, a nozzle driving mechanism is controlled by a control module to drive a nozzle to move downwards, so that the blanking end of the nozzle extends into an opening of the container, an electromagnetic valve is also controlled by the control module to be opened, and the liquid in the tank flows into the nozzle viaa pipe and then flows into the container; S2, the container filled with the liquid is conveyed to a detection device by a conveying device; S3, the filling flow rate of the liquid in the container isdetected by the detection device; S4, a grabbing device grabs the under-filled container to the supplementing station or grabs the over-filled container to the rejecting station. The flow rate of theliquid in the container filled with the liquid can be detected by the filling device, the filling flow rate is monitored, and filling quality is improved.

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...

AI Technical Summary

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

Images