TRANSFER DEVICES AND FEEDERS

CONTENT

Introduction Need of transfer devices and feeders Transfer system Transfer mechanism Types of transfer devices Feeder Types of feeders Part feeding devices

INTRODUCTION The aim of production engineer is to increase the

output particularly in mass production . This technique of transfer device has been introduce to achieve same motive .

The transfer devices are often the most suitable method for continuous flow of identical or view similar component in the mass production of consumer goods.

NEED OF TRANSFER DEVICES High product demand Better assembly process for mass production Less time required for production

TRANSFER SYSTEM These are special purpose system where the

component are transferred automatically from one machining head to another machining head.

For example CNC rotary transfer machine. Types of transfer system Continuous transfer system Synchronous transfer system Asynchronous transfer system Stationary transfer system

TRANSFER MECHANISM

Transfer mechanism are used to move the work piece from one station to another station in the machine or from one machine to another –to enable various operations to be performed on the part.

For examples rails Rotary indexing tables Overhead conveyors

TYPES OF TRANSFER MECHANISM

Liner transfer mechanism Walking beam mechanism Powered rollers Chain drive conveyor system

Rotary transfer mechanism Rack and pinion Ratchet and pawl Geneva mechanism

WALKING BEAM SYSTEM

POWERED ROLLER CONVEYOR SYSTEM

CHAIN DRIVE CONVEYOR SYSTEM

RATCHET AND PAWL MECHANISM

GENEVA MECHANISM

TYPES OF TRANSFER DEVICES

Inline transfer devices The in-line configuration assembly system

consists of a sequence of workstations in a more-or-less straight-line arrangement .

The in-line assembly machine consists of a series of automatic workstations located along an in-line transfer system. It is the automated version of the manual assembly line.

Continuous, synchronous, or asynchronous transfer systems can be used with the in-line configuration.

ROTARY INDEXING TABLE TRANSFER DEVICE

the base part are indexed around a circular table or dial.

The workstations are stationary and usually located around the outside periphery of the dial.

The parts ride on the rotating table and arc registered or positioned, in turn, at each station a new component is added to base part.

ROTARY INDEXING TABLE TRANSFER DEVICE

TRANSFER DEVICES USED IN TRANSFER MACHINE

Roller conveyor Wheel conveyor Chute conveyor Belt conveyor Chain conveyor Magnetic belt conveyor Bucket conveyor

FEEDERS

A feeder is the means by which the rate of solid flow from a hopper or bin is controlled .

Feeder feed material to conveyors, processors and other equipment at a controlled rate to maximize the efficiency and production.

Feeders differ from conveyors in that the latter are only capable of transporting material not modulating the rate of flow.

Dischargers are also not feeder

PART FEEDING DEVICES Hopper Chutes Magazines Separators Part feeder Feed truck Escapement and placement devices Bowls Cradle reel