Open AccessDesign of a new rotary dobby mechanism
Author(s) -
Özgün Can,
Gabil Abdulla
Publication year - 2019
Publication title -
industria textilă
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.281
H-Index - 14
ISSN - 1222-5347
DOI - 10.35530/it.069.06.1484
Subject(s) - mechanism (biology) , piston (optics) , mechanical engineering , engineering , rotation around a fixed axis , work (physics) , process (computing) , electromagnet , pneumatic cylinder , computer science , automotive engineering , control engineering , magnet , cylinder , physics , wavefront , quantum mechanics , optics , operating system
Special cam mechanisms which require advanced technology are used in the drive mechanism of nowadays rotarydobbies. Electromagnets are generally preferred in the selection mechanisms which increase the cost of production andmake the maintenance more difficult. This work aims to design a new rotary dobby different from the other dobbies. Firstof all, the design and synthesis of a new drive mechanism with eight members, equal and double standby at 180°oscillating motion was developed. The results of the research revealed that both the theoretical and the experimentalvalues of the waiting angles of drive mechanism are compatible with each other. Thus, it has been proposed thatdesigned mechanism can be used instead of the special cams mechanisms in the rotary dobbies. Pneumatic pistonsand locks have been used in the selection mechanism of rotating dobby developed in the study. During the performencetests, it has been observed that the pneumatic piston and locks can be used instead of the electromagnets by providingthat they work in harmony with each other. As a conclusion, when the working performance of dobby was observed, itwas confirmed that dobby worked with a high performance and durably with all of its mechanisms. Additionally theshedding process was precisely carried out. Finally a new rotary dobby which was easy to construct with low cost hasbeen designed and produced.