Method for mounting a component on a circuit board
AssigneeSamsung Techwin Co., Ltd.
InventorsHyung-soo Choi, Tae-young Lee
Life of this patent
Estimating the term…
Abstract
Provided are a tape feeder for use in chip mounters that can reduce a chip feeding duration and prevent chips from being turned over or assuming wrong postures to feed the chips stably, and a chip mounting method. The tape feeder includes a second link having one end linked to a link shaft through which a first link and a pivot lever are combined and the other end in which a slot curved at a predetermined inclination is formed. The velocity at which a carrier tape is fed changes according to the inclination of the curve of the slot with respect to the moving direction of the first link, the curve contacting the contact unit upon the movement of the first link in a direction helping to rotate a ratchet gear.
Claims13
A method for mounting a component on a circuit board with a component mounter including a tape feeding unit having a velocity control unit, the method comprising:
- preparing a printed circuit board to accept components from the component mounter;
- actuating the tape feeding unit to advance a tape carrier at an initial feeding velocity;
- removing a tape cover from the tape carrier to expose a component;
- substantially simultaneously with the removing step, decelerating, with the velocity control unit, the advance of the carrier tape to a second velocity slower than the initial feeding velocity;
- picking up the component using a nozzle head;
- and
- disposing the component on a predetermined location on the printed circuit board using the nozzle head.
A method for mounting a component on a circuit board using a component mounter that includes a tape feeding unit, the method comprising:
- configuring the tape feeding unit with a sprocket having teeth of a predetermined pitch to engage with spaced-apart transfer holes of a tape carrier which stores components, a generally horizontal link, a reciprocating actuator coupled with a first end of the generally horizontal link for extending and retracting the generally horizontal link, a pivot lever including a fixed end connected with a shaft on which the sprocket rotates and a free end coupled with a second end of the generally horizontal link, a pawl connected to the pivot lever intermediate upper and lower ends of the pivot lever for selectively rotating the sprocket relative to rotation of the pivot lever, and a link velocity control unit with a contact unit and a velocity control link including a first end having a curved slot moving on the contact unit and a second end coupled to the second end of the generally horizontal link;
- activating the reciprocating actuator to move the generally horizontal link and pivot lever for rotating the sprocket at an initial tape-feeding rotational velocity;
- removing a tape cover from a tape carrier to expose a component;
- substantially simultaneously with the removing step, decelerating the tape carrier by using the velocity control unit, the velocity control link interfering with reciprocating movement of the generally horizontal link for rotating the sprocket at a second tape-feeding rotational velocity that is slower than the initial tape-feeding rotational velocity;
- picking up the component using a nozzle head;
- and
- disposing the component on a predetermined location on the circuit board using the nozzle head.
Dependencies are inferred from the claim text.