I. Introduction to quilting machine

Quilting machine is one of the most widely used textile equipments. Quilting is the track of various patterns which are combined into irregular arrangement and independent or regular arrangement and repetition on the materials by using the suture. These patterns are not only sufficient to sew three layers of materials firmly, prevent the filler from moving, but also enhance the three-dimensional sense of the sewn products and improve their decorative functions.

II. Early quilting machine

The early quilting machine was a mechanical quilting machine, which made the pattern to be sewn into a template and fixed with the frame. The movement mechanism of quilting machine made a profiling movement on the template, driving the sewing head to move according to the pattern on the template, making the sewing pattern consistent or similar to the template. But because the sewing track of the device must be connected and the turning radius cannot be too small, otherwise the profiling mechanism cannot work normally. Moreover, the design and manufacture of the template are very complicated, the cycle is long and the precision is high, which determines that the products produced by the mechanical sewing machine are difficult to adapt to the changes of the market, that is, the small batch and multiple varieties of products. Therefore, it is urgent to develop and produce high-speed CNC quilting machine.

III. Development Status of quilting machine

With the development of electronic technology and the maturity of numerical control technology, people began to apply numerical control technology to quilting equipment, resulting in a computerized quilting machine. The computerized quilting machine uses the numerical control system (or special computer digital control system) to control the movement of the quilting machine and sew all kinds of patterns, which brings great convenience to the design and product update.

According to the number of quilting needles on the machine, quilting machine can be divided into single needle quilting machine and multi needle quilting machine. The working principle of single needle quilting machine and multi needle quilting machine is basically the same, but there are great differences in the mechanical structure and in the control mode.

From the current market demand, multi needle quilting machine occupies the vast majority of quilting machinery production share. The imported quilting machine has the advantages of fast quilting speed, high efficiency and good quilting quality, but the price is expensive, which can not be bought by small and medium-sized enterprises, and the after-sales service and maintenance are not convenient, and the accessories are difficult to buy. Since the beginning of 1980s, quilting industry in China has experienced from manual flat quilting machine to cam quilting machine, computer continuous pattern numerical control quilting machine, and now computer continuous / independent / multi pattern numerical control quilting machine.

IV. development trend of quilting machine

With the individuation of products and the requirement of complicated and beautiful single pattern. Single needle quilting machine began to be favored by people. At present, there are many domestic manufacturers of single needle quilting machine, basically using frequency converter to control the spindle movement, but the output frequency accuracy of the frequency converter is limited, so that the speed drop accuracy is not high. With the increase of knitting varieties and the improvement of quality, the new generation quilting machine requires that the speed change accuracy of T-axis motor must be lower than 0.05% in order to maintain the balanced tension on the fabric surface, which is difficult to achieve by analog signal control In order to meet the needs of the domestic market, it is necessary to develop a new generation of digital products. Now, the single needle quilting machine in the international market has high precision, and some manufacturers have produced a new generation of products with computer vision correction.

The market of computer quilting machine is still expanding. In fact, this kind of product is still very young. The real market application is only about ten years, and its market space is still very large. At the same time, its technology upgrading and development are expected to be quite fast. The future development direction of computerized quilting machine will be special quilting machine and special quilting machine, which will realize intellectualization and complete a complete set of assembly line for cotton opening, cloth feeding, filling, edge closing and edge cutting at one time. In addition, the computerized quilting machine and computerized quilting machine will be combined with the remote control of the production process to realize the design and production automation, management information and process control intelligence of quilting industry.