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- Title
Investigation of ejection process in mechatronic functional modules of packaging machines.
- Authors
Kryvoplias-Volodina, Liudmyla; Gavva, Oleksandr; Hnativ, Taras; Rivna, Kateryna
- Abstract
Introduction. The purpose of the research is to determine the influence of geometric, kinematic and technological parameters on the ejection processes in mechatronic functional modules of packaging machines. Materials and methods. The modes of operation of pneumatic nozzle ejection systems with variable working environment were studied: compressed air, alcohol-containing solutions, gas-modified environment. The tasks set were solved on the basis of analysis and generalization of the literature material, conducting experiments to study the effectiveness of L-shaped ejectors, as well as bench studies of the process of creating and spraying the mixture on the product of processing. Results and discussion. Problem solving for the proposed design of pneumatic nozzle ejection systems made possible to find optimal working technological and control modes for the processing of packing materials: dosed spraying of alcoholcontaining substances on the surface of treatment with back pressure within 3–5 bar, jet velocity at the inlet of the ejector is adjusted by pressure regulator, working area irrigation with a diameter of 100–150mm, controlling the effect of turning the ejector on and off by a variable feedback signal on the inlet pressure both in the ejector and in the pressure line with a liquid jet of 0–10 V. Product processing above 6 bar causes the destruction of bakery products. For bakery products, the optimum pressure at the inlet of the ejector is 4 bars. Changing the geometry of the confuser and the diffuser makes it possible to reduce the flow of compressed air by 20%, which reduces the energy load for packaging machines. Conclusions. Therefore, the optimal working modes of pneumatic nozzle systems for the treatment of flexible packaging materials and the surface of non-destructive bakery products are proposed.
- Subjects
PNEUMATICS; SURFACE preparation; PACKAGING materials; FLEXIBLE packaging; AIR flow; METAL spraying
- Publication
Ukrainian Food Journal, 2019, Vol 8, Issue 3, p620
- ISSN
2304-974X
- Publication type
Article
- DOI
10.24263/2304-974X-2019-8-3-16