The tension control effect of the double needle bar Raschel machine is affected by many factors. Generally speaking, it has a good performance, but there are also some aspects that need to be continuously improved and optimized, as follows:
1. Positive aspects:
Advanced warp feeding mechanism: The current double needle bed Raschel warp knitting machine is usually equipped with a variety of more advanced warp feeding mechanisms, such as the active warp feeding mechanism with a pressure roller as the sensing mechanism. This warp feeding mechanism can use the actual warp feeding speed of the warp yarn as feedback information to control and adjust the speed of the warp beam, so that the warp beam can be unaffected by the diameter of the warp beam, and continuously and constantly feed the predetermined length of warp yarn, thereby ensuring the stability of the warp tension.
Some double needle bed Raschel warp knitting machines also use an electronic warp feeding system, which monitors the tension of the warp yarn in real time through sensors, and automatically adjusts the warp feeding speed according to the preset tension value, further improving the accuracy and stability of tension control.
Reasonable loop forming machine configuration: The configuration of its loop forming machine helps to maintain the stability of tension. For example, the reasonable design and configuration of the sinker can hold and pull the warp yarn, help maintain the warp yarn tension stable during the looping process, and prevent the warp yarn from being too loose or tight. The precise lateral movement of the guide needle and the cooperation with the knitting needle can also ensure the uniformity of the warp yarn tension during the weaving process.
Applicable to a variety of fabrics: For different types of fabric production, the double needle bed Raschel warp knitting machine can better control the tension. Whether it is producing jacquard fabrics or medium-thick fabrics, the machine parameters can be adjusted according to the characteristics and process requirements of the fabric to achieve a good tension control effect, thereby ensuring the quality of the fabric.
2. Areas that still need improvement:
Challenges during high-speed operation: When the machine runs at high speed, the movement speed of the warp yarn increases and the inertia force increases, which may cause the warp yarn tension to fluctuate. Although some advanced double needle bed Raschel warp knitting machines can reduce tension fluctuations by optimizing the warp feeding mechanism and control system when running at high speed, in some cases, it is still difficult to completely avoid slight changes in tension, which may affect the quality of the fabric and production efficiency.
Difficulty in controlling tension when weaving complex patterns: When weaving fabrics with complex patterns, the difficulty of controlling the tension of the warp yarn will increase due to the different yarn requirements in each horizontal row. Although the machine is equipped with multiple combs to meet the weaving needs of complex patterns, the tension of the warp yarn may be different between different combs and different parts of the same comb, and more precise tension control technology is needed to solve this problem.
If you are interested in learning more about the tension control effect of the double needle bar Raschel machine, please pay attention to www.newpowertex.com and start an efficient journey. We look forward to working with you and providing tailored product solutions for your company.