Browse Prior Art Database

Setscrew Feeder

IP.com Disclosure Number: IPCOM000042145D
Original Publication Date: 1984-Mar-01
Included in the Prior Art Database: 2005-Feb-03
Document File: 2 page(s) / 35K

Publishing Venue

IBM

Related People

Booker, SE: AUTHOR

Abstract

This article shows and describes a device for providing reliable feeding of set screws in a preoriented manner. It is often desired to use hex-socket setscrews in applications such as radial gears and anchored shafts. Automating these uses has been difficult in the past because headless screws are hard to feed in a reliable socket-up or socket-down orientation. The present device performs this orientation function prior to a pick-up operation by a screw-driving device. In the figure, screws 2 travel from a vibratory bowl (not shown) in tube 4 to escapement cylinder 6. Cylinder 6 is provided with a suitably configured screw-receiving well 8. Selector needle 10 with integral air jet projects into screw-receiving well 8 and connects to the axis 12 about which cylinder 6 pivots.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 75% of the total text.

Page 1 of 2

Setscrew Feeder

This article shows and describes a device for providing reliable feeding of set screws in a preoriented manner. It is often desired to use hex-socket setscrews in applications such as radial gears and anchored shafts. Automating these uses has been difficult in the past because headless screws are hard to feed in a reliable socket-up or socket-down orientation. The present device performs this orientation function prior to a pick-up operation by a screw-driving device. In the figure, screws 2 travel from a vibratory bowl (not shown) in tube 4 to escapement cylinder 6. Cylinder 6 is provided with a suitably configured screw-receiving well
8. Selector needle 10 with integral air jet projects into screw-receiving well 8 and connects to the axis 12 about which cylinder 6 pivots. An air inlet is also provided in axis 12 to connect to selector needle 10. Screws 2 in feeder tube 4 are axially oriented. If a screw approaches escapement cylinder 6 shank first, the base of the screw rests on the tip of selector needle 10, causing the screw to project beyond the periphery of cylinder 6. When cylinder 6 rotates clockwise, the projecting portion of screw 2 will contact switch 14. Making switch 14 indicates that the screw is not properly oriented. Cylinder 6 is then controlled to rotate counterclockwise until screw-receiving well 8 is aligned with reject tube 16. Air forces the screw back into tube 16 which returns to the supply bowl (not shown). If, however, t...