First, no nail cap: This is a common failure, and most of the reasons are that the clamps are not tight. You only need to change the clamps; there is also a possibility that the nail wire for the nail cap is reserved. Too short, just adjust the length of the reserved wire.
Second, the nail cap is not round: this problem is usually also on the fixture. First, observe whether the countersink hole on the fixture is round. If it is not round, you need to re-drill it. smooth. There is also a problem with the nail wire, either the nail wire reserved for the nail cap is too short, and the length of the reserved nail wire is adjusted; or the nail wire is too hard and the nail cap cannot be washed out or the nail cap is unqualified Need to be annealed.
Third, the thickness of the nail cap: You also need to check the fixture to see if the height of the two sets of fixtures is the same, and also whether the fixture can clamp the nail wire, and then check whether the counterbore of the fixture has serious wear on one side. In the end, you need to observe whether the nails that are punched out are unqualified because the nails are too hard.
Fourth, the nail cap is skewed: first check whether the center of the two nail knives is consistent with the center of the nail mold, whether the height of the nail knife is neat, and whether the counterbore positions of the two nail molds are on the same plane. Whether the shell is loose.