This solution is aimed particularly at the equipment of pipe and profile extruders.

Please contact:

Siemens AG

A&D MC PM1
Mr. Andreas Leupolt

Postfach 3180
91050 Erlangen

E-mail: andreas.leupolt@erlf.siemens.de
Tel.: +49 (0) 91 31 / 98 - 22 06
Fax: +49 (0) 91 31 / 98 - 21 21

Особенности

• Solution standard:
  Standard application for the automation of extruders (extrusion package)
• HMI:
  IPC-based operator solution with standard graphics
• Temperature control:
  Integrated in SIMATIC STEP 7
• Drives
  • Drive integration via analog interface or PROFIBUS DP
  • Automatic extruder start-up function simplifies commissioning
• Monitoring and Documentation of process and quality data
• Evaluation and display of status and fault messages
• Recipes for storing the current setting values
• Integration of external auxiliary devices
  • Gravimetric dosage systems for a high degree of reproducibility and minimal material consumption
  • Ultrasound systems for quality assurance and minimalization of material consumption
  • Constant pressure conditions through use of a melt pump

Область применения

Extrusion lines are used to produce pipes, profiles, sheets and foils from a continuous web of plastic material. The plastic is continuously fed in the form of granulate to a screw, which rotates in a heated metal cylinder.

The resulting frictional heat, together with heat from an external source, melt the plastic granulate and the rotating screw homogenizes the molten mass, passing it at the same time through the nozzle orifice.

In the nozzle, the plasticated mass is disseminated and formed in such a way that the contour of the product to be extruded emerges from the outlet orifice. The product is then brought to its precise and final form with the aid of sizing and cooling devices. A take-off device removes the product without jerk and at a steady speed from the nozzle.

This solution is aimed particularly at the equipment of pipe and profile extruders.

Дизайн

The solution was conceived as open standard. The user can utilize the basic functions of the standard, but can also easily expand and adapt it to his particular machine configuration.

With this approach, the extrusion package reduces the equipment of extruders considerably, since the typical basic functions are already integrated.

The application software for extrusion is created from the standard STEP 7 configuring software packages (control/automation) and ProTool/Pro (visualization).

Depending on the requirements, operator panels and controllers from the SIMATIC family which deviate from the standard configuration can also be used when adapted appropriately.

The integrated solution of operator communication system and controller can be optimally supplemented with drive technology from Siemens.

The standard application for extrusion is preconfigured for interfacing drives with analog I/O. The analog interface can, of course, also be replaced by a PROFIBUS DP network.

As option, we also offer an auxiliary "extrusion" operator panel for fast, intuitive extruder control.

Функции

Centralized operator control and visualization of extruder functions

• Drive interfacing
  • Start-up program
  • Synchronous drive operation
  • Cold restart function
• Temperature control
  • Self-setting controller parameters
  • Heat and cooling controllers
  • Heating current monitoring
  • Seven-day timer
• Die pressure control
• Alarms and signalling functions
• Trend graphics with archive
  • for fault diagnostics
  • for quality assurance
• Recipe management for machines and tool data
• Interfacing of external auxiliary devices
  • Gravimetric dosage
  • Ultrasonic systems
  • Melt pumps
  • Systems for cable extrusion

Option: auxiliary operator panel for extruders

Engineering

The standard application is preconfigured with ProTool/Pro operator graphics and STEP 7 program for the above-mentioned hardware. Once the hardware has been configured and the software loaded, the solution is ready to run.

The concept and the interface documentation enable adaptation to another hardware configuration as well as expansion of the standard application.

Технические данные

Features and performance data based on the standard configuration of the extruder package
(analog drive-interfacing and central I/O’s ¹⁾ )

1) Distributed configuration via Profibus DP also is prepared, this reduces the necessary I/O’s.

2) Recipes with different structure, this defines the kind and number of variables of a recipe.

3) Max. number of variables in a recipe that can be stored per data record.

4) Max. number of data records (values of the variables).

5) for temperature actuating signals (heating and cooling) etc.

Заказные данные