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Coil Handling Equipment 140

This class describes the equipment used in a coil-fed press line and explains general coil line arrangements.

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Class Details

Class Name:
Coil Handling Equipment 140
Difficulty:
Beginner
Number of Lessons:
14
Additional Language:
Spanish

Class Outline

  • Objectives
  • What Is the Coil Line?
  • Uncoilers
  • Reel Uncoilers
  • Cradle Uncoilers
  • Straighteners
  • Straightener Components
  • Feed Mechanisms
  • Roll Feeders
  • Grip Feeders
  • Arrangement of Coil Equipment
  • The Slack Loop
  • Additional Coil Equipment
  • Summary

Objectives

  • Identify common equipment used in a coil line.
  • Identify common types of uncoilers.
  • Identify the main components of a reel uncoiler.
  • Identify the main components of a cradle uncoiler.
  • Describe the main function of a straightener.
  • Identify the main components of a straightener.
  • Identify common types of feed mechanisms.
  • Identify the main components of a roll feeder.
  • Identify common types of grip feeders.
  • Identify the main components of a grip feeder.
  • Describe how coil equipment is arranged in a coil line.
  • Explain the function of a slack loop.
  • Identify types of equipment that handle parts and scrap.

Job Roles

Certifications

NIMS
  • Metalforming I

Glossary

Vocabulary Term Definition
bridge grip feeder A type of grip feeder that clamps stock in the center or across its entire width.
coil A long, thin sheet of metal that has been wound tightly. Stock first appears as coil for many press operations.
coil set The natural curvature remaining in coil after it has been unwound.
conveyor A long belt that rotates to remove parts or scrap from the die area.
cradle A type of uncoiler that supports coil from below on its outside diameter.
eccentric drive A powered drive that uses an offset section to power the reciprocating motion of the ram.
feed gripper The device on a grip feeder that clamps/unclamps and slides back and forth to advance stock into the die.
feed mechanism A mechanism designed to intermittently advance stock into the press between strokes.
feed roll A cylindrical component on a roll feeder that rotates to advance stock into the die.
grip feeder A type of feed mechanism that uses one stationary and one sliding clamping mechanism to intermittently feed stock into the press.
idler roll An unpowered component on a straightener that bends stock as it passes through the equipment. Idler rolls are positioned above the stock.
inside diameter An interior cylindrical surface of a hole.
intermittent Moving in a repetitive, constant start-and-stop cycle.
keeper A component on a reel uncoiler that prevents the coil from sliding off the mandrels.
loop control device A device that detects when stock must be advanced to maintain the slack loop. Either a powered uncoiler or straightener will typically have a loop control device.
mandrel A component on a reel uncoiler that holds coil through its inside diameter. Mandrels expand to hold the coil in place.
mechanical roll feeder A roll feeder that is powered with energy supplied by the press itself. Mechanical roll feeders require rods connected to the press eccentric drive.
open-throat grip feeder A type of grip feeder that clamps stock on one edge. Open-throat grip feeders can accommodate wider stock.
outside diameter An exterior cylindrical surface of a part or stock.
pilot A long, slender punch with a rounded tip used to position the metal sheet by entering a previously formed hole.
pinch roll A component on a cradle uncoiler that assists uncoiling by pulling on the stock.
ram The main upper portion of the press that slides up and down within the press frame during operation.
reel A type of uncoiler that holds coil by its inside diameter and suspends it above the ground.
rest roll A component on a cradle uncoiler that supports the coil and rotates to unwind the coil.
retainer gripper The stationary device on a grip feeder that clamps and unclamps to assist in advancing stock.
roll feeder A type of feed mechanism that uses rotating rolls to intermittently feed stock into the press.
scrap chopper A mechanism designed to cut scrap into smaller sections to facilitate handling.
servo-driven roll feeder An independent roll feeder that has powered, computer-controlled rolls.
shaker A special chute that reciprocates back and forth to remove parts or scrap from the die area.
side plate A component on a cradle uncoiler that prevents the coil from tipping on its side.
slack loop Excess stock that hangs between coil-line equipment. The slack loop allows continuous and intermittent equipment to work together.
straightener A mechanism designed to repeatedly bend stock back and forth to remove any natural curvature.
straightening roll A powered component on a straightener that bends and passes stock through the equipment. Straightening rolls are positioned below the stock.
uncoiler A mechanism designed to hold coil and gradually unwind it during press operations.