1. No nail cap: This is a common failure for novices. Most of them are the reasons for the clamps not tightening the nail wire. At this time, you only need to replace the clamps; another possibility is to reserve the nail cap. The nail wire is too short, but this is not very common. At this time, adjust the length of the reserved nail wire.
Second, the nail cap is not round: most of this problem is also caused by the fixture. Observe whether the countersunk hole on the fixture is round. If it is not round, you need to re-drill it; another is to observe the die hole of the fixture Whether it is uneven, if it is uneven, just adjust it. Another possibility is that it is on the nail wire, or the nail wire for the nail cap is too short, then the length of the reserved nail wire needs to be adjusted; or the nail wire is too hard to be washed out of the nail cap Or the nail cap is unqualified, then the nail wire needs to be annealed.
Third, the thickness of the nail cap: This kind of problem also needs to observe the fixture, to see whether the height of the two sets of fixtures has been constant, in addition to see whether the fixture can clamp the nail wire, and then there is to observe whether the sink hole of the fixture In the case of severe single-sided wear, it is still necessary to observe whether the nail wire is too hard and the nail cap that is punched out is unqualified.
4. The skew of the nail cap: first observe whether the centers of the two nail knives are consistent with the centers of the nail dies, whether the front and rear heights of the nail knives are neat, and also see if the sink holes of the two nail dies are on the same plane Check again if the mold shell is loose.