Feeder for an electronic component

Patent metadata

Field	Value
Publication number	US-9820420-B2
Application number	US-201414582892-A
Country	US
Kind code	B2
Filing date	Dec 24, 2014
Priority date	Jun 29, 2012
Publication date	Nov 14, 2017
Grant date	Nov 14, 2017

Abstract

A feeder and a feeder control method, as well as an electronic component device, reliably engaging a supply tape in a loading operation even if there is an accumulated pitch error between sprocket holes. Third, second and first sprockets are arranged successively from an insertion port. The sprocket hole on a forward end portion of the inserted supply tape is fitted with a third tooth of the third sprocket in the loading operation. The supply tape is rotated by rotation of the third sprocket until fitting with a second tooth of the second sprocket, and the rotation of the third sprocket is stopped after the second tooth fits with the sprocket hole on the forward end portion.

First claim

What is claimed is:

1. A feeder comprising
a tape chute guiding movement of a supply tape,
a third sprocket having a third tooth fitting with a sprocket hole of the supply tape inserted into an insertion port and moving the supply tape on the tape chute by rotation, a second sprocket driving motor driving the third sprocket using a second mechanism that connects the second sprocket driving motor to the third sprocket,
a second sprocket provided in a downstream direction of the third sprocket, having a second tooth fitting with the sprocket hole of the supply tape fed by the third sprocket and moving the supply tape on the tape chute by rotation,
an exposing mechanism provided in a downstream direction of the second sprocket for exposing an electronic component in a pocket covered by a cover tape of the supply tape fed by the second sprocket,
a first sprocket provided in a downstream direction of the exposing mechanism, having a first tooth fitting with the sprocket hole of the supply tape and moving the supply tape storing the electronic component exposed by the exposing mechanism on the tape chute by rotation,
a first sprocket driving motor synchronously driving the first sprocket and the second sprocket using a first mechanism that connects the first sprocket driving motor to the first sprocket and the second sprocket, and
a control portion controlling the first sprocket driving motor and the second sprocket driving motor, wherein
the third sprocket, the second sprocket driving motor, the second sprocket, the exposing mechanism, the first sprocket and the first sprocket driving motor are attached to a feeder body.

2. The feeder according to claim 1 , wherein the control portion controls the second sprocket driving motor such that, when the sprocket hole on a forward end of the supply tape fed by the third sprocket fits with the second tooth of the second sprocket, the traveling speed of the supply tape resulting from the rotation of the second sprocket by the first sprocket driving motor is higher than the traveling speed of the supply tape resulting from the rotation of the third sprocket by the second sprocket driving motor.

3. The feeder according to claim 1 , wherein the third sprocket includes a one-way clutch such that the third sprocket is pulled by the supply tape when the supply tape is moving faster than the traveling speed resulting from the rotation of the third sprocket due to movement of the supply tape resulting from the rotation of the second sprocket.

4. The feeder according to claim 1 , wherein the exposing mechanism has a cutter for performing cut-open processing of the cover tape of the supply tape, and exposes the electronic component in the pocket of the supply tape by performing cut-open processing of the cover tape of the supply tape moved by the third sprocket, the second sprocket, and the first sprocket.

5. The feeder according to claim 1 , wherein an interval between the first sprocket and the second sprocket is closer than an interval between the second sprocket and the third sprocket.

6. The feeder according to claim 1 , wherein a shape of the third tooth is a round-tooth shape or a shape having a smaller number of catches than the second tooth.

7. The feeder according to claim 6 , wherein the control portion controls the first sprocket driving motor and slows down/stops the rotation of the second sprocket when a first detection sensor provided in the downstream direction of the second sprocket senses the forward end portion of the supply tape.

8. The feeder according to claim 7 , wherein the control portion performs control to move the supply tape to a position where the first detection sensor does not sense the supply tape by controlling the first sprocket driving motor to rotate the second sprocket in a reverse rotation operation.

9. The feeder according to claim 8 , wherein the control portion performs control to move the forward end portion from the position where the first detection sensor does not sense the supply tape to a position immediately before reaching a cutter by rotating the second sprocket to move the supply tape by a prescribed quantity, the cutter being included in the exposing mechanism.

10. The feeder according to claim 9 , wherein the control portion performs control of the second sprocket driving motor by rotating the second sprocket at a prescribed ultralow speed and ultralow acceleration to move the supply tape by the prescribed quantity from the position immediately before reaching the cutter.

11. The feeder according to claim 1 , further comprising a second detection sensor provided in a downstream direction of the insertion port, wherein the control portion moves the supply tape in a reverse direction by the prescribed quantity according to a previously set reverse feed rate by the rotation of the second sprocket and the first sprocket by the first sprocket driving motor when sensing that an instruction for starting an unloading operation has been issued from an operation panel and in a case where the second detection sensor senses the presence of the supply tape.

12. The feeder according to claim 11 , further comprising
a plurality of lanes through which a plurality of supply tapes are parallelly fed, wherein
the operation panel has a selection button for selecting any of the lanes by an operation of an operator, a return button for moving the supply tape in the reverse direction by a second prescribed quantity, an unloading button for starting the unloading operation and two display portions.

13. The feeder according to claim 12 , wherein the control portion interrupts the operation of moving the supply tape in the reverse direction in a case of sensing that at least any one button of the operation panel has been pressed during the operation of moving the supply tape in the reverse direction.

14. The feeder according to claim 1 , wherein the third sprocket includes a one-way clutch, and does not reversely rotate.

15. An electronic component mounting device having the feeder according to claim 1 , wherein the feeder further includes an interface portion, for performing transmission/receiving of information of the feeder through the interface portion and mounting the electronic component extracted from the feeder on a substrate.

16. An electronic component mounting method performing a loading operation of carrying the supply tape inserted from the insertion port of the feeder according to claim 1 into a component outlet port, adsorbing the electronic component exposed by the exposing mechanism and positioned on the component outlet port and mounting the electronic component on a substrate, comprising:
sensing an anomaly of adsorption of the electronic component;
sensing a terminal end portion of the supply tape; and
subsequently starting driving of the second sprocket driving motor for starting transportation of a subsequent supply tape inserted into the insertion port by the third sprocket and executing the loading operation in a case of sensing an anomaly in an adsorption operation for the electronic component and the terminal end portion of the supply tape.

17. An electronic component mounting device having the feeder according to claim 1 , wherein the feeder is further furnished with a body-side control unit including a detection sensor provided in the downstream direction of the insertion port for sensing the presence or absence of the supply tape and an interface portion, performing transmission/receiving of information to/from the feeder through the interface portion and controlling respective apparatuses, for

Assignees

• Yamaha Motor Co Ltd

Inventors

• Ohyama Kazuyoshi
• Yanagida Tsutomu
• Kano Yoshinori
• TOMITA Yuuki
• Chida Yutaka

Classifications

• H05K13/0417 Primary

  Feeding with belts or tapes · CPC title

• H05K13/0419 Primary

  tape feeders · CPC title