1. There is no nail cap: This is a common fault, most of which is the reason that the clamp is not tightly clamped. You only need to replace the clamp; there may be a reserved nail for the nail cap. Too short, just adjust the length of the reserved nail wire.
2. The nail cap is not round: This fault usually lies in the fixture. First, observe whether the countersunk hole on the fixture is rounded. If it is not round, re-drill it; also need to observe whether the fixture die hole is uneven and adjust it to ensure smooth. Another possibility is the nail wire problem. Either the nail wire reserved for punching the nail cap is too short, adjust the length of the reserved nail wire; or the nail wire is too hard to punch out the nail cap or the nail cap is unqualified , The nail wire needs to be annealed.
3. Thickness of the nail cap: It is also necessary to check the fixture to see if the heights of the two sets of fixtures are the same, and also to see whether the fixture can clamp the nail wire, and then observe whether the counterbore of the fixture is severely worn on one side Circumstances, it is necessary to observe at last whether the nail wire is too hard and the nail cap that is punched out is unqualified.
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 front and rear heights of the nail knives are neat, and whether the counterbore positions of the two nail molds are on the same plane, and finally check the mold Whether the shell is loose.
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