How much do you know about the sewing machine knife?

A sewing machine knife is used for cutting raw materials such as leather, fabric, plastic, etc. used. Its sharpness has a direct effect on the working quality of the sewing machine. This is why people attach great importance to the quality of the sewing machine knife when choosing sewing.

What do I do if the sewing machine knife doesn't work properly?

What to do if the thread cutter of the sewing machine knife is too short?

How to select a sewing machine knife?

What do I do if the sewing machine knife doesn't work properly?

1. Check if the top thread on the sewing machine knife has been threaded incorrectly or missed a certain thread position.

2. Check if the needle is correctly fitted, e.g. the long knot of the needle is inverted or incorrectly mounted.

3. Check if the needle model is applicable if the height of the needle bar setting is correct and if the needle is close to the top of the needle bar. If the needle is too high or too low, the gripper thread is damaged.

4. Check if the needle is threaded. When sewing with a twisted needle, the hook cannot absorb the sewing material as the formed loop is far from the hook. Slightly curved needles are difficult to spot directly with the naked eye and can be identified by turning the needle on the platform.

What to do if the thread cutter of the sewing machine knife is too short?

1. We can check the position of the thread thrower on the thread thrower. If the sewing machine is sewing at the highest speed, the end surface of the thread release pen falls to the level of the thread release pen and the thread barrier works. In the low-speed sewing state, the end surface of the thread release pen still falls to the level of the thread release discard strings but is closer to the inclined surface of the thread release discard strings. When the sewing machine knife is in thread cutting and parking mode, the end surface of the thread release pen falls to the level of the thread release pen, and the thread release clamp floats and does not work.

2. If the problem still cannot be solved after the first two tests, the discarded pen for the loose cable is probably short. We can remove the original discard pen for thread release of the sewing machine knife, make an extended discard pen for thread release and then reinstall it.

How to select a sewing machine knife?

It is necessary to understand whether the power of the sewing machine knife is suitable for the processing conditions!

The performance of sewing machine knifes mainly includes toughness, wear resistance, sharpness, accuracy, and other indicators.

Some of these indicators are contradictory, such as B. Durability and abrasion resistance. Only if you know exactly which properties of the knife you need to use (or which properties need to be met first) can the sewing machine knife be fully functional.

MACHINERY TECHNOLOGY CO., LTD, as a pioneer of the manufacturer of sewing machine knife in China, knows that every application is something special. You can go and get more information about them.