COMPARATIVE ANALYSIS OF THE ENERGY CONSUMED BY NEEDLE BAR MECHANISM AND THE MECHANISM DRIVING THE FEED DOG OF A TOP DRIVE SEWING MACHINE

International Academy Journal Web of Scholar

View Publication Info
 
 
Field Value
 
Title COMPARATIVE ANALYSIS OF THE ENERGY CONSUMED BY NEEDLE BAR MECHANISM AND THE MECHANISM DRIVING THE FEED DOG OF A TOP DRIVE SEWING MACHINE
COMPARATIVE ANALYSIS OF THE ENERGY CONSUMED BY NEEDLE BAR MECHANISM AND THE MECHANISM DRIVING THE FEED DOG OF A TOP DRIVE SEWING MACHINE
 
Creator Elena Atanasova Blagova
 
Subject sewing machines
analysis
energy
needle bar mechanism
feed dog mechanism
sewing machines
analysis
energy
needle bar mechanism
feed dog mechanism
 
Description The paper focuses on the energy consumed by two mechanisms of sewing machine for straight lockstitch (stitch line 301): needle driving mechanism and the transporting mechanism. The first mechanism - needle driving, is a simple structure, but it is the most dynamic one. The second – to moving the fabrics, is the most complicated mechanism of the sewing machine. A comparative analysis of the energy consumed by the two mechanisms for the implementation of their propulsion is made. The correct work of the machine, the seam quality and the quality of the entire sewing product depend to a large extent, on the workings of these two mechanisms. The needle is driven by a slider-crank mechanism, while for the movement of the connected details, at the distance one step is done by a working part – a feed dog. It is attached to a carrier and its trajectory is a closed planar curve, close to the ellipse. The feed dog receives the horizontal and vertical component of its motion from two conditionally separate kinematic chains that have a common drive.The aim is analytical research and comparative analysis of the energies of needle bar mechanism and a mechanism driving the feed dog of the sewing machine. The energy consumed by each of the links of chains, of the chains themselves and total energy consumed by each of the two mechanisms for a full turn of the main shaft of the machine was studied. A comparative analysis of the energies and their distribution was carried out during the working process and the free movement of each of them. The results of the comparative analysis are presented in graphs and diagrams. It can be seen that the energy consumed by the needle mechanism is significantly greater than that of the transport mechanism. This fact is due to the much higher speeds of the links of the first one.
The paper focuses on the energy consumed by two mechanisms of sewing machine for straight lockstitch (stitch line 301): needle driving mechanism and the transporting mechanism. The first mechanism - needle driving, is a simple structure, but it is the most dynamic one. The second – to moving the fabrics, is the most complicated mechanism of the sewing machine. A comparative analysis of the energy consumed by the two mechanisms for the implementation of their propulsion is made. The correct work of the machine, the seam quality and the quality of the entire sewing product depend to a large extent, on the workings of these two mechanisms. The needle is driven by a slider-crank mechanism, while for the movement of the connected details, at the distance one step is done by a working part – a feed dog. It is attached to a carrier and its trajectory is a closed planar curve, close to the ellipse. The feed dog receives the horizontal and vertical component of its motion from two conditionally separate kinematic chains that have a common drive.The aim is analytical research and comparative analysis of the energies of needle bar mechanism and a mechanism driving the feed dog of the sewing machine. The energy consumed by each of the links of chains, of the chains themselves and total energy consumed by each of the two mechanisms for a full turn of the main shaft of the machine was studied. A comparative analysis of the energies and their distribution was carried out during the working process and the free movement of each of them. The results of the comparative analysis are presented in graphs and diagrams. It can be seen that the energy consumed by the needle mechanism is significantly greater than that of the transport mechanism. This fact is due to the much higher speeds of the links of the first one.
 
Publisher RS Global Sp. z O.O.
 
Date 2019-09-30
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
 
Format application/pdf
 
Identifier https://rsglobal.pl/index.php/wos/article/view/513
10.31435/rsglobal_wos/30092019/6684
 
Source International Academy Journal Web of Scholar; Vol 1 No 9(39) (2019): International Academy Journal Web of Scholar; 12-20
International Academy Journal Web of Scholar; Том 1 № 9(39) (2019): International Academy Journal Web of Scholar; 12-20
2518-1688
2518-167X
 
Language eng
 
Relation https://rsglobal.pl/index.php/wos/article/view/513/500
 
Rights Copyright (c) 2019 The author
https://creativecommons.org/licenses/by/4.0
 

Contact Us

The PKP Index is an initiative of the Public Knowledge Project.

For PKP Publishing Services please use the PKP|PS contact form.

For support with PKP software we encourage users to consult our wiki for documentation and search our support forums.

For any other correspondence feel free to contact us using the PKP contact form.

Find Us

Twitter

Copyright © 2015-2018 Simon Fraser University Library