Objective
A prototype has been developed in which the upper sewing mechanism (needle bar and upper feed dog) and the lower one (hook and lowed feed dog) are assured by 2 independent DC motors controller in phase, without any mechanical connection.
To obtain the best quality seam in automatic sewing systems, requires that the whole sewing mechanism rotates to keep the stitch forming device always tangent to the seam path. A mechanical device has been developed employing differential mechanism, but the resulting machine is complicated and cumbersome. In the proposed project the motions of the upper sewing mechanism (needle-bar and upper feed-dog) and the lower one (hook and lower feed-dog) are assured by two independent DC motors controlled in phase, without any mechanical connection.
The rotation around a vertical axis of the upper and lower mechanism is obtained by means of two DC motors. The sample to be sewn is moved along two perpendicular directions X and Y axes are interpolated and the speed tangent to the seam-path is kept proportional to the rotation velocity of the sewing head to obtain constant stitch length. The new automatic unit will be appreciated especially in the leather goods industry, with possibilities of applications also in the clothing industry in general.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- agricultural sciences animal and dairy science domestic animals
- engineering and technology materials engineering textiles
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Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
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Coordinator
27100 Pavia
Italy
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