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Article

Development of a Novel Pneumatic Oscillator for the Tissue Paper Industry

1
Department of Industrial and Information Engineering and Economics, University of L’Aquila, P.le Pontieri, Monteluco di Roio, 67100 L’Aquila, Italy
2
SMC Italia SpA Località Recocce, Via delle Industrie, 67061 Carsoli, Italy
*
Author to whom correspondence should be addressed.
Academic Editor: Dan Zhang
Machines 2021, 9(11), 261; https://doi.org/10.3390/machines9110261
Received: 16 September 2021 / Revised: 22 October 2021 / Accepted: 28 October 2021 / Published: 30 October 2021
(This article belongs to the Special Issue Pneumatic Muscle Actuators)
The final quality of tissue paper depends on the parameters of the continuous transformation process and maintenance of rolls of a tissue paper machine. For a better quality, outer surfaces of the rolls must always be clean, and their roughness should be maintained in the same way. A Doctor Blade provides for such requirements. Our work is focused on the development of a pneumatic oscillator that moves a Doctor Blade in order to scrape the outer surfaces of the rolls. It is based on a low-friction double-effect cylinder with a through-rod. The integration of two limit switch valves, one for each head of the cylinder, and a smart pneumatic circuit to obtain a very low speed of the piston at constant load, represents the novelty of the proposed device. The piston of the cylinder allows for alternatively switching the limit switches that command the 5/2 air-operated pilot valve of the cylinder. The oscillator’s design, pneumatic circuit, and working principle are detailed. Experimental tests on the conceived limit switch and on the first prototype of the pneumatic oscillator validated the effectiveness of the proposed solution, the technical feasibility of the device, and the absence of stick-slip during the oscillatory motion at low speed. View Full-Text
Keywords: pneumatic actuator and valve design; pneumatic oscillator; flow rate characteristics; paper machine; Doctor Blade; experimental validation pneumatic actuator and valve design; pneumatic oscillator; flow rate characteristics; paper machine; Doctor Blade; experimental validation
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MDPI and ACS Style

Antonelli, M.G.; Beomonte Zobel, P.; Centofanti, M.; Colaiuda, S. Development of a Novel Pneumatic Oscillator for the Tissue Paper Industry. Machines 2021, 9, 261. https://doi.org/10.3390/machines9110261

AMA Style

Antonelli MG, Beomonte Zobel P, Centofanti M, Colaiuda S. Development of a Novel Pneumatic Oscillator for the Tissue Paper Industry. Machines. 2021; 9(11):261. https://doi.org/10.3390/machines9110261

Chicago/Turabian Style

Antonelli, Michele G., Pierluigi Beomonte Zobel, Massimiliano Centofanti, and Stefano Colaiuda. 2021. "Development of a Novel Pneumatic Oscillator for the Tissue Paper Industry" Machines 9, no. 11: 261. https://doi.org/10.3390/machines9110261

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