A high-precision packaging machine with real-time prediction and compensation of material column quality in the air and feeding delay

Abstract

The invention provides a high-precision packaging machine capable of predicating overhead feed column mass and compensating feeding delay in real time. The high-precision packaging machine comprises a sealing mechanism, a SMART700-IE touch screen, a former regulating mechanism, an unloading hopper, a film drawing mechanism, a weighing mechanism, a feeding and executing mechanism, a servo motor, a frequency converter, a PLC control circuit system, an upper computer and the like, wherein the sealing mechanism is arranged on the lower part of the former regulating mechanism; the SMART700-IE touch screen is arranged at the side of the former regulating mechanism; the film-drawing mechanism is arranged on the upper part of the former regulating mechanism; a PLC control case is arranged at the side of the sealing mechanism. The high-precision packaging machine can predicate packaging quality and packaging precision in real time, budgets out amount of materials which are finally dropped into a bag at different moments, finds out the optimal cutting-off and feeding moment, and accurately measures material mass, material dropping speed and material precision. The high-precision packaging machine is high in packaging precision, high in working efficiency, accurate in weighing and high in practicability, and saves labor power.

Description

technical field [0001] The invention relates to the technical field of packaging machines, in particular to a high-precision packaging machine capable of real-time prediction and compensation of material column quality in the air and feed delay. Background technique [0002] The weighing type automatic quantitative packaging machine is mainly used for the whole packaging process of weighing powdery and granular bulk materials and filling them in specific containers, which is convenient for the transportation and use of bulk materials. Improving the speed and control precision of the packaging machine is an urgent problem to be solved, and it is also the future development direction of the packaging machine. There are many reasons that affect the packaging accuracy. Among them, the air column and system delay are one of the main factors that cause errors. The air column is a part of the material that remains in the air after the feeding mechanism stops feeding and has not fal...

AI Technical Summary

Problems solved by technology

There are problems such as low packaging efficiency, more operators are required, and packaging accuracy cannot be guaranteed. The working process often depends on the experience of the operators.

There is also a compensation method that uses the last packaging result to perform iterative correction. This method cannot track the change of the feeding speed this time, so the compensation accuracy is not high

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