Browse Prior Art Database

Controlled Assembly Line Carrier Transportation Building Block

IP.com Disclosure Number: IPCOM000120586D
Original Publication Date: 1991-May-01
Included in the Prior Art Database: 2005-Apr-02
Document File: 2 page(s) / 69K

Publishing Venue

IBM

Related People

Kohlmeyer, WC: AUTHOR [+4]

Abstract

Transportation of parts and in-process work is essential in every manufacturing environment. Conventional conveyor systems which typically perform these tasks can be costly, cumbersome and difficult to control. Disclosed is a simple, low-cost, easily controllable material handling system. The basic structure is outlined in the figure. The system consists of five major components: a carrier, which rides on rails, AC, DC or stepping motors fitted to a friction drive mechanism, proximity sensors, a motorized rotary table and a controller. Note that all of these are shelf items. The basic operation is to have the carriers, which can move freely on the rails, driven by the friction drive mechanism which is driven by the controlled motors.

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Controlled

Assembly

Line

Carrier

Transportation

Building

Block

      Transportation of parts and in-process work is essential
in every manufacturing environment.  Conventional conveyor systems
which typically perform these tasks can be costly, cumbersome and
difficult to control.  Disclosed is a simple, low-cost, easily
controllable material handling system.  The basic structure is
outlined in the figure.  The system consists of five major
components:  a carrier, which rides on rails, AC, DC or stepping
motors fitted to a friction drive mechanism, proximity sensors, a
motorized rotary table and a controller.  Note that all of these are
shelf items. The basic operation is to have the carriers, which can
move freely on the rails, driven by the friction drive mechanism
which is driven by the controlled motors.  When an individual carrier
reaches its proper position, the proximity sensor senses its presence
and shuts off the pertinent motors until further motion is required.
If higher accuracy positioning is required (based on the
application), a carrier stop can be used since the friction between
the drive mechanism and the carrier is low enough to allow the
carrier stop to properly position the carrier. The ability to make
turns is realized by moving the carrier on to a rotary table and
stopping its motion.  Then the table is rotated to the proper
position and the carrier is moved off the table on to a new set of
rails.

      This system has the following adv...