Feeder for supplying electrical components to a pick up location

• US 6,024,208 A
• Filed: 09/18/1997
• Issued: 02/15/2000
• Est. Priority Date: 09/18/1997
• Status: Expired due to Fees

• Current Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Teoh, Ping Chow, Chooi, Kon Hing, Lim, Ka Teik
• Primary Examiner(s): Terrell, William E.
• Assistant Examiner(s): DEUBLE, MARK A
• Application Number:
  US08/933,191
• Time in Patent Office: 880 Days
• Field of Search: 198/525, 198/534, 193/32, 193/40, 406/83, 406/85, 406/191
• US Class Current: 198/534
• CPC Class Codes: B23P 19/005 by using flowing gases
• CPC Class Codes: B65G 51/03 over a flat surface or in troughs
• CPC Class Codes: B65G 51/20 Braking arrangements
• CPC Class Codes: H05K 13/028 Simultaneously loading a plurality of loose objects, e.g. by means of vibrations, pressure differences, magnetic fields

Abstract

A feeder (1) for supplying magnetically attractable electrical components (20) to a pick-and-place machine. The feeder (1) comprises a hopper (2) for storing the components (20) and a pick up location (3) for supplying the components to the pick-and-place machine. A passage (4) provides communication between the hopper (2) and pick up location (3). An air jet outlet (6) in passage (4) provides for propelling the components (20) and one or more magnets (35) are located adjacent an intermediate portion of the passage (4) and provide a magnetic field to assist in reducing the velocity of said components (20) passing through the intermediate portion.

Claims

1. A feeder for supplying magnetically attractable electrical components to a pick-and-place machine, the feeder comprising:

at least one storage device for storing some of said components;

a pick up location for supplying said components to said pick-and-place machine;

a passage providing communication between said storage device and said pick up location;

a propulsion device associated with said passage, said propulsion device propelling said components at a velocity along at least a portion of said passage; and

one or more magnets removably mounted to a housing of said feeder adjacent an intermediate portion of said passage, said magnets providing a magnetic field in said passage to thereby assist in reducing said velocity of said components passing through said intermediate portion.

2. A feeder as claimed in claim 1, wherein said magnet is a permanent magnet.

3. A feeder as claimed in claim 2, wherein said magnet is mounted by complementarily engaging a recess in said housing.

4. A feeder as claimed in claim 3, wherein said recess is formed in a non magnetically attractable material.

5. A feeder as claimed in claim 4, wherein the housing associated with said intermediate portion is formed from a non magnetically attractable material.

6. A feeder as claimed in claim 5, wherein said magnet is located adjacent to one side of said passage.

7. A feeder as claimed in claim 1, wherein said storage device is a hopper having an associated agitator device.

8. A feeder for supplying magnetically attractable electrical components to a pick-and-place machine, the feeder comprising:

at least one storage device for storing some of said components;

a pick up location for supplying said components to said pick-and-place machine;

a passage providing communication between said storage device and said pick up location;

a propulsion device associated with said passage, said propulsion device propelling said components at a velocity along at least a portion of said passage; and

a recess in a housing of said feeder adjacent an intermediate portion of said passage, said recess having one or more apertures for providing access to remove debris from said passage;

one or more magnets mounted in said recess, said magnets providing a magnetic field in said passage to thereby assist in reducing said velocity of said components passing through said intermediate portion.