D - F

D

Dancer Arm

A device on a motorized payoff that controls payoff tension

Decoiler

The action of removing by un-winding material from a coil, reel or spool

Deflection (F)

Displacement of the ends or arms of a spring on the application of an external force (P).

De-reeler    

A wire or narrow strip payoff. Used for taking off linear material from a large reel.

Detangler

A mechanical device to untangle or seperate parts such as springs

Double Plane

A 2 plane device as in a 2 plane wire straightener

Drive Belt    

The item that comes in contact with wire or narrow strip that is part of a tractor drive device, usually a hard rubber.

Drive Rolls    

A set of opposing rolls ( 2, 4, or 6 ) driven by a motor and gearbox that have been “ground” to a particular radius or shape to feed linear material as part of a servo or other type of feed device.

Dual Pivot

A specific set of mounting hardware from TAK Enterprises that allows a wire straightener to be set in a rotational value around 360 degrees of the wire feed line – A dual item

Dust Shield

A cover – usually transparent – that is over a bank or plane or series of planes on a wire straightener to keep contamination from falling onto the bearing rolls.

E

Elastic Limit    

Maximum stress to which a spring can be stressed without taking a permanent set – The point which must be reached by a roll straightener in order to “break the wire memory”.

Endurance Limit    

Maximum stress which can be repeatably applied without incurring spring failure.

Escapement

A mechanical device used to separate one part from another. Typically used in assembly machines or process machines to isolate a item for work.

External Setup (OED)

Tooling setup procedures that can be performed while machine is in motion. OED - "outer exchange of die" [See Internal Setup]

F

F&C

A system to feed materials a specified length and cut by an appropriate means

FAD

A precision adjustment device of the stroke of a reciprocating feed ( Fine Adjust Device) – A standard option on a TAK series #02 SF&C

Fatigue Failure    

A condition where a spring is deflected continually and the metal become fatigued to the point where it may fail at a stress value far below the elastic limit.

Feed Drive

A mechanical device to push / pull / feed or otherwise direct material or parts into or out of a particular processing device. See Servo Feed - Linear Drives

Feed Rolls

Typically round rolls that are used to "pull" wire or other linear material using a servo drive device. The rolls are ground with the wire diameter or shape dimensions to ensure accurate feeding of that material.

Feeder Bowl

Typically this is a parts feeding device that is in the shape of a bowl which vibrates. The bowl is "tooled" so that parts "walk out' of the bowl along an inclined surface which vibrates. Various slots, arms, blades, holes, and other shaped tooling items orient the parts so that they exit the bowl the desired way and one at a time.

Fine Wire

A relative term, but usually refers to small wire under .025” in diameter

Flat Stock

Usually flat, square, or rectangular shaped material.

Flat Wire

Any wire that is not round – usually refers to thin or narrow strip or even square wire

Float Control Valve

A valve that is put “in-line” on an air line to regulate, reduce, restrict, or “float” the level of air passing thru the line. Some TAK SF&C systems employ one for the purpose of optimizing the systems operation for particular applications.

Force (P)    

An active power applied to a spring to cause a deflection. It may also be erroneously referred to as load

Four Slide

Fourslides are machines designed to produce parts requiring blanking, piercing, or other machine operations in addition to forming. Fourslide machines combine a horizontal press with four forming slides, a highly efficient combination. Nilson & US Baird were two of the most common manufactures of these machines.

Free Angle    

The angle between the arms of a torsion spring when the spring is not loaded.

Free Length (L)    

The overall length of a spring in the un-loaded position

French Curve Reservoir

The design of a decoil system to get a smooth curve of varying radii to store material to remove shock resulting from reciprocal feeding systems.

Frequency (Natural)    

The number of cycles per minute at which a spring will vibrate freely once it has been excited.