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Swing fault of nailing machine
发表日期：2019-09-19 01:13 浏览次数： 标签：
Nailing machine is a professional automatic sewing equipment. Usually used to nail all kinds of buttons, especially in large garment factories. Usually nailing machine is used to complete some simple nailing behavior. But all machines will have various faults, the following is the pin machine failure and failure analysis.
Usually, there is no problem with the work of the nail buckler, but after numerous production, there will always be big or small problems, such as the frequent breakage of the split line grasp of the nail buckler motor knife that we want to talk about today. Consideration should be given to the deviation of the quality and position of the movable knife.
After the analysis of the broken moving knife of the splitting claw, most of the breaks are caused by the collision between the moving knife and the swing fork of the bending needle and thread dialing plate when the moving knife retreats at the instant of the machine starting.
For this reason, first determine whether the position of the swing fork is correct, the simplest method is to adjust the points on the swing fork cam, the bending needle shaft and the dial plate cam to the same point, then insert the adjusting ruler of the moving knife into the automatic shutdown to ensure that the clearance between the driving rod and the body of the moving knife is 12.5 mm.
If the clearance between the driving rod and the body is greater than 12.5 mm, then adjust to the standard position. If in the standard position, loosen the driving rod nut of the moving knife, then adjust it 1 mm to 2 mm forward, and then lock the moving rod nut. At this time, the moving knife should not be adjusted too large forward, otherwise it will easily lead to abnormal line splitting and cutting. Finally, without turning on the machine, step on the pedal and check whether there is any collision when the moving knife goes back.
There are two kinds of thread traces of fastener: single chain trace (No. 107 trace) and lock trace (No. 304 trace). A large number of nailing machines use single chain trace.
It should be pointed out that the characteristics of single-line chain stitches are inappropriate breaking position, false seam will be formed, and the stitches will disperse as soon as they are pulled. The nail machine can break the thread automatically, and the position of the broken thread can ensure that the stitches will not break off after the end of the thread is cut. However, due to the wear and tear of the stitches, a new position of the broken thread is formed, and the "failure" of the loose nail will often occur. In order to ensure the strength of the nail, the nail machine stipulates the number of needles for the nail, up to 42 needles per button can be sewn. However, there is no such problem in lock-type stitches, and the quality of nailing is much higher than that of single-line chain-type stitches.