Feed Rollers: These circular components are one of the most prominent features of many spring coiling machines. As they turn, they pull the wire from the reel and into the wire guides. Feed rollers often feature three grooves of different sizes, corresponding to the same grooves in the wire guides.
Cutter: When a coil has reached its desired length, the cutter slices the wire to create a separate spring. Depending on the coiling direction, the cutter may be positioned above or below the arbor.
Block Guide: As the wire exits the wire guides, it meets the block guide. This component ensures that the wire continues on the right path to the coiling point. The groove at the bottom of a block guide must be accurately machined to match the wire’s diameter.
Arbor: At the same time that the wire passes through the groove of the block guide, it passes over and around the arbor. In single-point coilers, the arbor represents the third point of contact at the point of coiling. Spring physics demand at least three points to coil wire; dual-point coilers have a third point in the additional coiling point, so the arbor is not as necessary.
Coiling Point: The coiling point is the component that pushes the wire into a coiled shape by deflecting its trajectory. Setup parameters determine exactly the angle at which the wire is deflected, which in turn determines the spring index, diameter, and overall shape of the spring. One notable difference between spring coilers is the number of coiling points.
Wire Guides: Wire guides are flat components containing grooves of varying sizes that match those on the feed rollers. The groove size doesn’t have to match the wire exactly, but it does have to be within a specified range. Wire travels through wire guides before reaching the block guide, the arbor, or the coiling point.
Pitch Tool: By sliding up and down and moving the wire along a sloped surface, the pitch tool precisely controls the pitch of the spring. Like the arbor, this component is also carefully machined to fit each job.
