Browse Prior Art Database

Leaf Spring Feeder and Orienter

IP.com Disclosure Number: IPCOM000040128D
Original Publication Date: 1987-Sep-01
Included in the Prior Art Database: 2005-Feb-01
Document File: 2 page(s) / 47K

Publishing Venue

IBM

Related People

Ashcraft, G: AUTHOR [+5]

Abstract

This article describes a technique for feeding and orienting a leaf spring for assembly onto a daisy wheel. Fig. 1 is a side view of the leaf spring feeder and orienter mechanism. In the assembly of a daisy wheel cartridge, leaf springs are bulk loaded into a storage hopper where they are automatically dropped into a vibratory feeder bowl, on demand of the feeder bowl, through a level switch. The feeder bowl automatically orients the leaf springs in a concave position and feeds them out, one at a time, onto a linear vibratory feeder track. Photo-cells on each end of the feeder track maintain the track full of ten leaf springs while, at the same time, keeping the leaf springs from shingling onto each other. Also, at the end of the linear vibratory track, the part present photocell actuates escapement into the down position.

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Leaf Spring Feeder and Orienter

This article describes a technique for feeding and orienting a leaf spring for assembly onto a daisy wheel. Fig. 1 is a side view of the leaf spring feeder and orienter mechanism. In the assembly of a daisy wheel cartridge, leaf springs are bulk loaded into a storage hopper where they are automatically dropped into a vibratory feeder bowl, on demand of the feeder bowl, through a level switch. The feeder bowl automatically orients the leaf springs in a concave position and feeds them out, one at a time, onto a linear vibratory feeder track. Photo-cells on each end of the feeder track maintain the track full of ten leaf springs while, at the same time, keeping the leaf springs from shingling onto each other. Also, at the end of the linear vibratory track, the part present photocell actuates escapement into the down position. The arm on the escapement just clears the second spring to allow linear pressure by all springs to

(Image Omitted)

position properly the spring to be picked up against the stop. The entire linear vibrator track has a rod cover just clearing the leaf springs to prevent shingling. However, the spring at the pick position is uncovered in order for it to be vertically picked off the track, and, therefore, the escapement arm prevents shingling in the pick position. Assembly of the leaf spring onto the daisy wheel must be in a convex position, as shown in the detail exploded view of a daisy wheel cartridge in Fig. 2. T...