Second Hand Stitching Machine - vssewingmachine

 Second Hand Stitching Machine - vssewingmachine

Needle penetration. Considering again the high sewing speeds that occur, problems with needle penetration can arise due to the mechanical and thermal interaction between needle and fabric. Fabric yarns may be torn by the forces acting during needle penetration or they may fuse due to the high needle penetration produced by friction. Systems to monitor needle penetration forces during the process to detect defects and off-line systems to support the choice of needles and fine-tune fabric structures and finishing to avoid these problems, would be of high value to the industry.  

 

Stitch formation/Thread tensions. The interlacing of the threads itself, which constitutes the actual stitch formation, cannot be dissociated from the processes of material feeding and needle penetration. However, there are two variables directly linked to the thread that most intimately represent it: Thread tensions and thread consumption. The relationships between fabrics, machine set-up and stitch formation in lockstitch machines have already been studied in . Methods for defect detection have been developed for overlock machines and presented in . However, an automatic system for setting thread tensions online is still missing  describe thread tension control in embroidery machines, but the work only tackles the issues associated to the control of the actuator. Setting of the correct references for the controllers to produce a high-quality product in varying conditions is the key issue, and this has to be further tackled.  Read More

 

This paper describes current work on the behavior of thread tensions in an industrial lockstitch sewing machine using a new measurement set-up. Methods previously investigated for monitoring of thread tensions and establishing the correct variable references are being ported and/or re-evaluated. The first step is the study of the relations between material properties and thread tensions. Some aspects are still not clear in this regard. In [13], for instance, the authors state that the thickness of fabric plies does not affect the needle thread tension. This is one of the aspects to be studied in this work.   

 

 

 

The sensor (custom-designed by Petr Skop) is a cantilever beam with semiconductor strain gauges at the base, configured as a complete Wheatstone bridge. A glass sphere with a rounded slot allows a low-friction interface with the sewing thread. A thread guide with two ceramic O-rings has been designed to guide the thread around the thread sensor. The thread pulling force produces deformation on the cantilever sensor that is picked up by the strain gauges.  Click Here

 

https://www.vssewingmachine.com/ 

 

https://goo.gl/maps/U7becHNt6xCt3LeLA 

 

Used Sewing Machines For Sale - vssewingmachine

 Used Sewing Machines For Sale - vssewingmachine

The processing of textile products by sewing them together is a very complicated process. This may not be apparent at first glance, but a closer look at the process reveals that, due to the flexible, often extensible nature of the materials, their handling is a procedure that in almost all cases requires human hand. Another important aspect is setting the machines for the great variety of materials used currently. This can only be accomplished by experienced sewing technicians. Machine configuration and adjustment is an empirical, time-consuming process that is more and more significant considering that textile industry has been constantly moving away from mass-production to small orders with varying materials and styles.  

 

Machines should be able to set themselves up when the data regarding material properties and desired process parameters is known. During the process, it would be ideal if they could adapt themselves and detect defects or malfunction automatically. This would reduce set-up times, increase flexibility of the machines and increase product quality and process reliability, avoiding defects and rejected products. More Info

 

Research in this direction has been carried out by several investigators, such as Clapp , who studied the interface between the machine and the material feeding system, Stylios  who proposed the principles of intelligent sewing machines, amongst others. Within our team, previous work has been carried out on thread tensions, material feeding and needle penetration forces in overlock machines . Other studies targeted needle and bobbin thread tension measurement on lockstitch machines .

 

 

 

The sewing process is a cyclic process in which several occurrences take place. The objective is to interlace thread(s) with each other and through a fabric, for the purpose of joining, finishing, protecting or decorating. Three main “sub”-processes can be identified that ideally should be monitored and/or controlled automatically View More

 

Material feeding. Seams are produced on the fabric with a certain pattern, which is, in the simplest case, a straight line, but may also be a complicated form such as the ones used in embroidery operations. To form these patterns, the material has to be transported-“fed” by a distance that is called the stitch length. Given that industrial machines operate at very high speeds (some of them attaining 10 000 stitches per minute), the dynamics involved is complex and there are very often problems with material deformation and irregular stitch length.   

 

https://www.vssewingmachine.com/ 

 

https://goo.gl/maps/U7becHNt6xCt3LeLA 

 

 

 

Buy Second Hand Sewing Machine Online - vssewingmachine

 Buy Second Hand Sewing Machine Online - vssewingmachine

he objectives are therefore twofold. On one hand, they are directed to the development of monitoring and control devices for the machines, enabling them to adapt to variable sewing conditions and detect defective sewing conditions automatically. On the other hand, they aim at the establishment of testing methods and equipment for pre-production analysis of fabric “sewability”

 

VS Sewing Machine,  Buy Second Hand Sewing Machine Online offers you with the Top selling brands along with all its Sewing Machines models in the Industry. You can get  the recommendations over here with the industry experts. Also we serves you best Pre-Selling as well as the Post Selling Services. Read More

 

THe smart factory is a futuristic production paradigm that transforms ICT(Information and communication technology) into a new smart/green/urban production system by integrating the existing traditional industrial production system.[1-2] Industry 4.0 proposed by DFKI, is defined as the 4th industrial revolution based on Internet-of-Things(IoT), cyber-physical systems(CPS), and Internet-of-Services(IoS). [3-6] In the textile industry, the smart factory is a factory based on the CPS that incorporates ICT and IoT technology into the existing production system.[7-8] In order to build a smart factory between textile and apparel streams, the connectivity of the CPS should be strengthened.  

This study focuses on the construction of a CPS system to realize a smart factory by deriving three representative processes (fabric, dyeing, sewing) among textile streams. Figure 1 shows the data flow of CPS based inter-stream smart manufacturing system. The rectangle marked with read lines represents the part for detecting and controlling the sewer data for the smart of the sewing process which is the core of this research and View  More

extile stream smart factory CPS implementation can only be done by linking together the ordering system, design automation system, product information management system, production information integration system and production equipment automation.[6] Fig. 2 shows the interlinkage of high-throughput, high-productivity production systems that minimize plant-to-plant collaboration and prototype production to accommodate small-volume and multi-stream requirements between streams, and can be instantly produced on demand 

https://www.vssewingmachine.com/ 

https://goo.gl/maps/U7becHNt6xCt3LeLA 

 

 

 

 

 

Used 2nd Hand Sewing Machine - vssewingmachine

 Used 2nd Hand Sewing Machine - vssewingmachine

The industrial manufacturing of sewn products has always been one of the critical processes of the textile chain concerning quality assurance. Assuring the appropriate set-up and operation of all the machines, and thus the final seam quality, is a very complex task. Traditionally, this task is accomplished by empirical methods, with machine setting and quality control relying on the skills of operators and technicians. In this work, an approach to a more knowledge-based and integrated process planning and control is presented. A system was developed to measure and analyze the most important mechanical effects occurring during high-speed sewing. A general overview over this development is given in this paper. Read More

 

Among the processes for making final products using fibers, the final process can be called a sewing process. The sewing process generally corresponds to the process that requires the most manpower in the production of textile products. The cost of sewing has gradually increased due to the recent rise in labor costs. The automation of the sewing process and the smart factory are expected to be carried out along with the fourth industrial revolution. In order to make the sewing factories smart, it is essential to apply smart sensing technology to the sewing machines. Also, sewing Process In order to grasp real-time situation, a system to monitor the status of each machine is needed. This study can be regarded as a part of technology development for automation and unmanned sewing process for final CPS(cyber-physical system) implementation. Three techniques have been developed in the sewing machine modification technology to assist the smarting and sewing process of the sewing machine. Three kinds of developed technology are a bobbin remaining amount detecting technique, stitch length control, and monitoring techniques. As a result of step-by-step technology development to realize CPS finally, it is a partial technology development of automation through some modification of sewing machine. The developed technology is expected to be used as a technology for future smart sewing automation plant construction.

 

 

 

o address some of the problems stated previously, in particular the quick response to small production orders, several new production organization methods have been devised. These are based on higher flexibility and interchangeability of the operators, smaller production units and batch sizes, and higher mobility of the production equipment. But the simple reorganization of production cannot address all issues: the variables related to the production process itself are still not controlled. Set-up of the machines is empirical and thus inaccurate and time-consuming. Initial set-up is maintained during operation regardless changing sewing conditions. Quality is assessed by visual inspection, often causing defective parts to pass unnoticed or to be detected very late.   Click Here

 

The approach proposed in this work relies on the evaluation and analysis of the relevant sewing parameters and their relation to quality problems and machine set-up variables. This integrated approach has enabled the development of methods to automatically detect sewing defects and seam quality, and to propose control methods for certain machine adjustments 

 

https://www.vssewingmachine.com/ 

 

https://goo.gl/maps/U7becHNt6xCt3LeLA 

 

 

Second Hand Sewing Machines - vssewingmachine

 Second Hand Sewing Machines - vssewingmachine

VS Sewing Machine, Second Hand Sewing Machines offers you with the Top selling brands along with all its Sewing Machines models in the Industry. You can get  the recommendations over here with the industry experts. Also we serves you best Pre-Selling as well as the Post Selling Services.

The sewing performance of high-speed sewing machine determines the performance and quality of the sewing machine, and the sewing performance also is the core technology of sewing machine. In this paper, the Virtual Prototyping of the  sewing machine has been established and the simulation, analysis and redesign method has been brought up to check the sewing performance. So the sewing performance of the  has been greatly improved. Read More

 

The end of the 20th century has brought important new trends in fashion design, marketing tools and consumer attitudes that have reshaped the demands on the textile and apparel industry. The main consequences to apparel manufacturing have been a constant increase of individual production orders, product and materials variety and much smaller order quantities.

 

This fact posed new requirements on the production systems and equipment: both have to be flexible and reliable. In the case of the equipment, this means that quicker set-up times are required  whenever material changes and that quality assurance has to be much more efficient.

 

Managing this situation with the traditional empirical machine set-up and process planning methods is difficult. Better control and predictability of the processes are required. Additionally, in the new and thriving segment of technical textiles, defects may represent failure of product functions, also demanding new methods that provide a more holistic and knowledge-based management and control of the processes  Click Here

 

https://www.vssewingmachine.com/ 

 

https://goo.gl/maps/U7becHNt6xCt3LeLA