Step-by-Step Guide to Replacing Needles on a Circular Knitting Machine

Replacing circular knitting machine needles is a common maintenance work in textile production, ensuring correct operation can not only improve production efficiency, but also extend the service life of the circular knitting machine. However, due to the complexity of needle structure and various models, how to standardize and carefully change the needle has become the key. In this article, we will detail the specific steps of the needle replacement, as well as the details that need to be paid attention to during the replacement process to help you successfully complete the job.

The specific steps of Needle Replacement

Turn off the Machine and Power off

Safety is always the first priority. Before starting any maintenance operations, be sure to stop the machine completely and turn off the main power supply. Power off can not only avoid personal injury caused by accidental starting of the machine, but also prevent damage to the machine components caused by current or static electricity.

Select the Right Needle Type and Size

Before replacing a needle, you need to determine the specific model and specification of the needle used. Different brands and models of circular knitting machines use different needles, and choosing the wrong needle may cause the machine to fail to function properly or the fabric to appear defective. It is recommended to refer to the instruction manual of the machine, or to compare the original old needle with the new needle to ensure that the same needle type is selected.

Get the Right Tools

When changing the needle, you may need some basic tools such as wrenches, screwdrivers, etc. Make sure these tools are properly sized and securely loosen screws or bolts to avoid damage to the needle or frame during operation. In addition, wearing gloves can better protect your hands during operation.

Loosen the Screw and Remove the Old Needle

Using a wrench or screwdriver, locate the screws that hold the knitting needles to the frame. Loosen it carefully, taking care not to lose the screw or make it fall into the inside of the machine. After loosening, gently remove the old needle to avoid bending or damaging the needle. To prevent needles from being lost or misused, a small box can be prepared to store old removed needles.

Check the Rack and Needle Slots

After the old needle is removed, check the needle groove and frame for wear or foreign objects. If fibers, dust or dirt build up, it is recommended to clean with a soft brush or a clean cloth. Make sure the needle groove is clean and unimpeded, which will ensure the smooth installation of new needles and prevent damage to the fabric during work.

Install a New Needle

After selecting the appropriate new knitting needle, slowly insert the needle slot in the same direction and Angle as when removing it. Make sure the new needle is fully inserted into the rack and at the same height and orientation as the other needles. Avoid excessive force when inserting to prevent the needle from bending or damaging.

Tighten the Screws to Secure the Device

After installing the new needle, use a wrench or screwdriver to retighten the screw. Make sure the needle is securely secured and does not come loose or wobble. The force should be moderate when tightening, too tight may cause screw damage, and too loose will cause the needle to shift or fall off during work.

Check the Needle Installation

After installing the needle, check each new needle again to ensure that the Angle of the needle is consistent with the frame and that the needle is stable and not loose. Spare tools or old needles should be organized so as not to be left in the machine or on the workbench.

Power on and Test the Machine

After the check is confirmed, reconnect the power supply, and start the circular knitting machine for trial operation. Observe the operation of the needle to ensure that it works smoothly with other components. During the trial operation, please pay attention to whether there is abnormal noise or vibration, if the problem is found, the machine should be stopped immediately and checked.

Professional Advice and Follow-up Maintenance

After the needle is replaced, record the date and model of the needle for future maintenance reference. If you are not sure about the needle replacement operation or encounter complicated problems, it is recommended to contact professional technicians for inspection and guidance. Regular maintenance and inspection of the machine can reduce major problems caused by small failures, extend the service life of the equipment, and ensure the stability of production.

Conclusion

The replacement of circular knitting machine needle seems simple, but it actually contains many detailed operations. The correct replacement method can not only ensure the quality of the textile, but also reduce the loss of the machine and the risk of failure. Therefore, when performing needle replacement, it is important to follow the above steps to ensure that each step is safe and in place. If you are unsure of the specific operation, it is best to refer to the machine's manual or consult a professional to ensure that the work is carried out smoothly.

Through careful operation and regular maintenance, you can not only ensure the efficient operation of the circular knitting machine, but also improve production efficiency, reduce maintenance costs, and escort the textile production of enterprises.