What are the reasons for the breakage of the flower machine's latch needle?

The latch needles on the weaving machine broke, which seriously affected the weaving quality of the fabric. When weaving, the latch needle broke because of the continuous collision between the latch needle and the valve of the triangle, and between the needle latch and the needle rod. What are the specific reasons? Let's share them with you! The main causes of the latch needles breaking on the weaving machine are: (1) When each side of the latch needle contacts the curved triangle, the curved triangle will impact the latch needle; (2) When the latch needle contacts the needle guard triangle, the needle guard triangle will also impact the latch needle. The impact force of the curved triangle on the knitting needle is about 250 microseconds, so the impact force of the curved triangle on the knitting needle is relatively small. (3) Because the impact period of the curved triangle is very large compared to the basic natural frequency of the latch needle, no longitudinal transition will be formed on the latch needle. The shock wave shape of the needle guard triangle is relatively steep, and the impact force reaches its peak in about 5 to 10 microseconds. Therefore, under the impact of the needle guard triangle, the stress wave will be quickly transmitted to the entire latch needle. At this moment, the speed of the latch needle slows down rapidly, causing the needle hook to bend and vibrate. At the same time, the impact force of the needle tongue will also cause the needle hook to bend and wrench due to the wave. The above is the analysis of the phenomenon of the latch needle breaking of the flower machine. I hope everyone can clearly understand its adverse effects on the equipment and pay more attention to it in the future use process, as an experience reference! .