There are a lot of hand-held automatic lock screw machine, can be said to be a variety of, but there are also a lot of forged products, so in the purchase of the need for extra caution, then how to choose it:
The first step is to check whether it can be screened: in actual production, there may be cases of special-shaped screws such as flash, flat head and big head. Grab a screw containing various special-shaped screws that do not meet the specifications and put it in the hopper. If the screw machine can automatically screen out special-shaped screws during operation, there will be no card machine, which meets one of the conditions for a good screw machine.
The second step, check whether the material can be replenished: when we carry out the first step, the screw machine automatically screens a special-shaped screw, there must be a gap; If the system can be replenished in time, there will be no gap. This is the second condition of a good screw machine.
The third step is to check whether there will be floating teeth: some manufacturers will enlarge all channels in order to make the special-shaped screws pass smoothly, which will cause the electronic approval nozzle to be difficult to align with the screw cross groove, resulting in floating teeth of the lock screws and increasing defective products.
The fourth step is to check whether the feeding is repeated: sometimes the previous one is not locked, and another screw will be sent when the signal is touched lightly, that is, double screws.
