Separating couples the handling functions of quantity changing and checking.

Organization

Name of Project: Field-Pro-System

Submitted to: Mech-Consulting

Project Manager: Project Start Date: 21/1/2013

Project End Date: 18/02/2013

Introduction

The Field-Pro-System is automatic packing lines with two cylinders with PLC control based on fieldbus for production line control system.

The aim of the project is to install and test of profibus – sequence controlled electro-pneumatic packing line control system. All the control tasks are done by Siemens PLC Master (S7-313C-2DP) and profibus slave station is Festo’s profibus valve terminal.

Team member: Ge Lining

Huang Xiaoxiao

Igor Kuzmenko

David Meliksetyan

Estimated Cost

The total cost of the project is 3500 € which includes insurance and the labour cost of two of us (team members)

Stakeholder

TIMO ELORANTA

Mech-Consulting Ltd.

Pohjolankatu 23, 53100, Lappeenranta, Finland

Timetable of Project

Cost Calculation

We have calculated the cost on the following topics.

Outcome of Project

With the present packing system, we can only pack at the rate of 20 per minutes. But with the installation of the new PLC based system, we can pack 50 per minutes. Thus with this new system, the company can cope with its demand of the product in the market easily and satisfy customer with product on demand.

Risks

System limitation

- Problem in finding right solution to sequence diagram

- Connection mistake

- Lack of operating knowledge

Schedule Risks

- Unexpected incident at works or to workers

- Sickness of workers

- Delay in delivery of goods like sensors, PLC, and others

Goal of the project

— The goal of this project is increase the productivity of assembly cell production by at least 30 %

Our stations

Seperating

Process

Pick and Place Module

The Pick & place station is an automated insertion device.

The Pick & place station inserts a workpiece insert into a housing. The workpiece inserts available are a clock, a thermometer and a hygrometer.

The role of the Pick & place station is to

· Transport workpieces (housing)

· Stop workpieces (housing)

· Insert workpiece inserts

· Separate complete workpieces (housing and insert)

The Pick & place station is equipped with a two-axis Pick & place module. Workpiece housings placed on the conveyor belt are detected by a diffusion sensor. The workpiece is conveyed to an electrical separator and there detected by a second diffuse sensor.

The Pick & place module picks up a workpiece insert from the slide and places it on the workpiece housing. The complete workpiece (housing and insert) is released by the separator and transported to the end of the conveyor. A light barrier detects the workpiece at the end of the conveyor belt.

The station allows the following other functions to be implemented:

· Segregation of workpieces (housings or bodies) on the slide

· Alternative feed of workpieces (housings or bodies) from the slide

Separating Module

Separating couples the handling functions of quantity changing and checking.

According to VDI 2860, that means allocating and separating a quantity of different parts through information acquisition (ACTUAL) and the comparison of specified characteristics (DESIRED), requiring defined characteristic categories. The Separating station separates the material flow of the workpieces body (cylinder) and housing (clock, thermometer, hygrometer).

For separating the material flow the conveyor section is equipped with two conveyor belts. A sorting branch is switched dependent on the workpieces. Controlled workpieces can be transported to the pick-up point at the end of conveyor belt 1 or a subsequent station (0° staggered) or be sorted out onto conveyor belt 2 or be transported to a further subsequent station (90° staggered).

Date: 2015-12-17; view: 778