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WO1997036465A1 - Systeme d'alimentation acheminant des composants electriques a des points de collecte - Google Patents

Systeme d'alimentation acheminant des composants electriques a des points de collecte Download PDF

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Publication number
WO1997036465A1
WO1997036465A1 PCT/US1997/004920 US9704920W WO9736465A1 WO 1997036465 A1 WO1997036465 A1 WO 1997036465A1 US 9704920 W US9704920 W US 9704920W WO 9736465 A1 WO9736465 A1 WO 9736465A1
Authority
WO
WIPO (PCT)
Prior art keywords
pick
feeder system
locations
channels
upright plane
Prior art date
Application number
PCT/US1997/004920
Other languages
English (en)
Inventor
Ka Tiek Lim
Ping Chow Teoh
Kon Hing Chooi
Original Assignee
Motorola Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Motorola Inc. filed Critical Motorola Inc.
Priority to AU25482/97A priority Critical patent/AU2548297A/en
Publication of WO1997036465A1 publication Critical patent/WO1997036465A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K13/00—Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components
    • H05K13/02—Feeding of components
    • H05K13/028—Simultaneously loading a plurality of loose objects, e.g. by means of vibrations, pressure differences, magnetic fields
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G51/00—Conveying articles through pipes or tubes by fluid flow or pressure; Conveying articles over a flat surface, e.g. the base of a trough, by jets located in the surface
    • B65G51/02—Directly conveying the articles, e.g. slips, sheets, stockings, containers or workpieces, by flowing gases

Definitions

  • This invention relates to a feeder system for supplying electrical components to pick up locations.
  • the invention is particularly useful for, but not necessarily limited to, supplying surface mountable electrical components stored in hoppers to respective pick up locations for subsequent mounting to a circuit board.
  • Component feeding is a well-known process in Surface Mounting
  • a feeder is used to sequentially supply surface mountable electrical components to a pick up location for subsequent placing, by a pick-and-place machine, onto a Printed Circuit
  • PCB PCB which is pre-printed with solder paste.
  • feeder is a tape and reel feeder in which the electrical components are packaged on a tape that is wound onto a reel.
  • the tape comprises individual pockets each containing one of the electrical components that are individually sealed in the pockets by a covering of thin film.
  • the film is removed when the tape enters the pick up location therefore leaving a pocket containing one of the electrical components in a position accessible by the pick-and-place machine.
  • Hopper feeders also known as bulk or tube feeders are an alternative to tape and reel feeders.
  • Hopper feeders comprise a hopper in communication, via a passage, with the pick up location.
  • the passage is inclined to make use of gravity for supplying the components to the pick up location.
  • air blasting may be used to assist gravity when supplying the components to the pick up location.
  • both conventional hopper feeders or tape and reel feeders are positioned on either sides of a conveyor track extending along a length of a pick-and-place machine.
  • the conveyor track transports printed circuit boards into an area of the pick-and-place machine to allow components, fed from the hopper feeders or tape and reel feeders, to be mounted to the circuit boards.
  • Such pick-and-place machines are expensive and their length is relatively short.
  • the conventional hopper feeders or tape and reel feeders are not configured to fully utilize the relatively short length of the pick-and-place machine. Accordingly, there is typically less than 400 hopper or tape and reel feeders, or combinations of both, used per pick- and-place machine (200 either side of the track). Due to this poor space utilization of the pick-and-place machine, extra pick-and place machines may be required to complete the mounting of components to the circuit boards. This therefore can result in increased manufacturing and maintenance costs.
  • a feeder system for supplying electrical components to pick-and-place machine, the feeder system comprising: a plurality of storage means for storing some of said components; a plurality of pick up locations for supplying said components to said pick-and-place machine, a plurality of channels for providing communication between a respective one of said storage means and one of said pick up locations, wherein a length of at least some of said channels is aligned in an upright plane.
  • said length of at least some of said channels may be aligned above each other.
  • said channels may be in alignment with said upright plane along a majority of their respective lengths.
  • each of said storage means may be in alignment with said upright plane.
  • each said storage means may be a hopper.
  • each of said pick up locations may be in alignment with said upright plane.
  • said upright plane may be transverse to a longitudinal axis of a printed circuit board conveyor track of said pick-and-place machine.
  • said upright plane may be normal to a axis of said conveyor track.
  • said upright plane may be substantially vertical.
  • Fig. 1 is a side view of a feeder system in accordance with this invention
  • Fig. 2 is a plan view of the feeder system of Fig. 1;
  • Fig. 3 is a cross sectional view through A-A of Fig. 2.
  • a feeder system 1 for supplying electrical components to pick-and-place machine 2.
  • the feeder system 1 comprises a plurality of storage means in the form of hoppers 3, a plurality of pick up locations 4 and a plurality of channels 5.
  • the channels 5 provide communication between a respective one of the hoppers 3 and one of the pick up locations 4.
  • the channels 5, pick up locations 4 and hoppers 3 are machined into a surface of a block 6 and enclosed by a transparent plate 7 that is bolted to block 6 (bolts not shown).
  • the pick-and-place machine 2 (not shown in detail) has a printed circuit board conveyor track 8 for transporting a printed circuit board 9 into an area of the pick-and-place machine 2.
  • the pick-and-place machine 2 also has a robot arm 10 for removing electrical components (not shown) from the pick up locations 4.
  • a total length of the channels 5 are aligned above each other in an upright and vertical plane P that is transverse and at an angle normal to a longitudinal axis L of conveyor track 6. Further, the pick and place locations 4 and hoppers 3 are also aligned along the vertical plane P.
  • electrical components are stored in the hoppers 3.
  • the components in the hoppers 5 are agitated by air blasts. These air blasts push streams of the components from the hoppers 3 to the respective pick up locations.
  • the robot arm 10 then removes the components from the pick up locations and places them on the printed circuit board 9.
  • the present invention makes efficient use of the space extending along longitudinal axis L of the pick-and-place machine 2. Space utilization is also advantageously improved by the channels 5 being aligned above each other.
  • the pick and place locations 4 and hoppers 3 are also aligned along the vertical plane P, which is normal to the longitudinal axis L, further space utilization is achieved. Accordingly, more pick and place locations 4 can be used on a single pick and place machine 2 that may therefore reduce manufacturing and maintenance costs.
  • the vertical position of the pickup locations 4 are arranged to be at substantially the same vertical height as a bottom portion of the hoppers 3. This arrangement creates a situation wherein the potential energy that a component has when exiting the hopper into the channel is substantially the same as the potential energy of a component arriving at the pickup location. Thus, the transfer of the component is very easy, as it does not have to overcome any gravitational energy barriers.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Supply And Installment Of Electrical Components (AREA)
  • Feeding Of Articles To Conveyors (AREA)
  • Warehouses Or Storage Devices (AREA)

Abstract

L'invention concerne un système d'alimentation (1) acheminant des composants électriques à une machine de collecte et de distribution (2). Ledit système d'alimentation (1) a une pluralité de trémies (3) servant à stocker les composants. Il comprend également une pluralité de points de collecte (4) destinés à faire parvenir les composants à ladite machine de collecte et de distribution. L'invention se rapporte en outre à une pluralité de canaux (5) mettant en communication une trémie (3) et le point de collecte (4) correspondant, la longueur de chacun de ces canaux (5) étant alignée selon un plan vertical.
PCT/US1997/004920 1996-03-26 1997-03-25 Systeme d'alimentation acheminant des composants electriques a des points de collecte WO1997036465A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU25482/97A AU2548297A (en) 1996-03-26 1997-03-25 A feeder system for supplying electrical components to pick up locations

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
MYPI9601133 1996-03-26
MYPI9601133 1996-03-26
MYPI9601148 1996-03-27
MYPI9601148 1996-03-27

Publications (1)

Publication Number Publication Date
WO1997036465A1 true WO1997036465A1 (fr) 1997-10-02

Family

ID=26641527

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/US1997/004856 WO1997035790A1 (fr) 1996-03-26 1997-03-25 Systeme d'apport et d'alimentation en composants electriques
PCT/US1997/004920 WO1997036465A1 (fr) 1996-03-26 1997-03-25 Systeme d'alimentation acheminant des composants electriques a des points de collecte

Family Applications Before (1)

Application Number Title Priority Date Filing Date
PCT/US1997/004856 WO1997035790A1 (fr) 1996-03-26 1997-03-25 Systeme d'apport et d'alimentation en composants electriques

Country Status (4)

Country Link
KR (1) KR20000004989A (fr)
CN (2) CN1074381C (fr)
AU (2) AU2548297A (fr)
WO (2) WO1997035790A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4283847A (en) * 1979-05-24 1981-08-18 Lear Siegler, Inc. Circuit board assembly
US4386464A (en) * 1979-12-28 1983-06-07 Taiyo Yuden Co., Ltd. Method and apparatus for mounting electronic components in position on circuit boards
US4451324A (en) * 1979-05-12 1984-05-29 Sony Corporation Apparatus for placing chip type circuit elements on a board
US4598459A (en) * 1984-03-22 1986-07-08 Siemens Aktiengesellschaft Installation for manual assemblying of components on a printed circuit board
US5035047A (en) * 1988-06-16 1991-07-30 Tdk Corporation Electronic component mounting apparatus

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3163324A (en) * 1961-12-18 1964-12-29 Feedmatic Detroit Inc Pneumatic nut elevator
GB1373088A (en) * 1971-12-31 1974-11-06 Mars Ltd Beverage-dispensing machines
DE2510415A1 (de) * 1975-03-11 1976-09-16 Gernot Lucas Vorrichtung zur foerderung von ware, insbesondere speiseeis, zur anwendung in verkaufs-automaten
JPH02202694A (ja) * 1989-02-01 1990-08-10 Fuji Electric Co Ltd 自動販売機
US5385434A (en) * 1992-12-09 1995-01-31 Molex Incorporated Electrical connector delivery system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4451324A (en) * 1979-05-12 1984-05-29 Sony Corporation Apparatus for placing chip type circuit elements on a board
US4283847A (en) * 1979-05-24 1981-08-18 Lear Siegler, Inc. Circuit board assembly
US4386464A (en) * 1979-12-28 1983-06-07 Taiyo Yuden Co., Ltd. Method and apparatus for mounting electronic components in position on circuit boards
US4598459A (en) * 1984-03-22 1986-07-08 Siemens Aktiengesellschaft Installation for manual assemblying of components on a printed circuit board
US5035047A (en) * 1988-06-16 1991-07-30 Tdk Corporation Electronic component mounting apparatus

Also Published As

Publication number Publication date
CN1074381C (zh) 2001-11-07
WO1997035790A1 (fr) 1997-10-02
CN1214849A (zh) 1999-04-21
CN1214661A (zh) 1999-04-21
AU2546097A (en) 1997-10-17
KR20000004989A (ko) 2000-01-25
AU2548297A (en) 1997-10-17

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