УДК 687.05
DOI: https://doi.org/10.36887/2415-8453-2025-3-56
JEL classification: L64, L67, O31
A comprehensive study was conducted to solve the current applied problem of improving the laser unit used in modern industrial cyclic sewing machines. The study focuses on the design features and technical characteristics of laser systems integrated into sewing equipment. The relevance of the work stems from the rapid development of automation in the sewing industry, where gas carbon dioxide lasers with 80–120 W of power are becoming increasingly popular for their high cutting accuracy, energy efficiency, and flexible settings. However, despite the advantages, the operation of such equipment revealed a significant problem: the complexity of processing packages of materials with variable thickness. This leads to a deterioration in the cut quality, charring of the fabric edge, and, in some cases, the risk of an open flame and the formation of production defects. As part of the study, a detailed comparative analysis of existing laser head types was conducted: standard fixed structures and two-position-switching systems. Using industrial models such as the BRUCE BRC-F9000-SS-F11BF13-X, the authors demonstrate that rigid fixation of light output and the need for manual adjustment of the focal length significantly limit the equipment’s adaptability to complex technological patterns. Even systems with a pneumatic drive, such as the BRUCE BRC-TX14095A-SSYX-F11AF13 model, provide only two fixed focus-tube positions, which do not allow for active, adaptive adjustment during the sewing cycle. The scientific novelty of the work lies in the development and justification of a modernized design of a laser head with an integrated intelligent autofocus system. The authors propose using a laser scanner that operates on the principle of active distance measurement from the nozzle to the material surface. To implement rapid lens movement at high machine speeds (over 100 mm/s), a mechanism based on a stepper motor and lever transmission has been developed. This solution allows the system to adapt to the workpiece contour in real time without the need for pre-programming the servo motor.
Keywords: cyclic sewing machine, industrial sewing automation, laser head, autofocus, laser.
Rеferences
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The article was received 12.08.2025
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Krasii Mykhailo, Polishchuk Oleh, Yerii Andrii, Lisevych Svitlana. 12.08.2025 . Optimization of the laser unit in cyclic sewing machines. The journal "Ukrainian Journal of Applied Economics and Technology". 2025 / #3. 284-287pp. https://doi.org/10.36887/2415-8453-2025-3-56
Quote article, MLA style
Krasii Mykhailo, Polishchuk Oleh, Yerii Andrii, Lisevych Svitlana. "Optimization of the laser unit in cyclic sewing machines". The journal "Ukrainian Journal of Applied Economics and Technology". 12.08.2025 . https://doi.org/10.36887/2415-8453-2025-3-56