Gefran Packaging Solution

         

Precious objects or everyday products, foods, drinks, powders, cosmetics and pharmaceuticals all share a common need: the right packaging. An elegant package offering total safety and hygiene can contribute to the success of consumer products.

Vertical and horizontal packaging machines, dosers, fillers, formers, cartoners, hot melt, and hot air are just some of the machines used for this purpose. Packaging machine automation has to satisfy demands for cycle speed, precision checking, and repeatability, plus careful attention to aesthetics of the packaged product.

All aspects of system control must mesh perfectly to achieve these goals. Gefran offers a complete range of products for packaging machine automation, including industrial sensors for the acquisition of physical variables, plus actuators such as solid-state relays and SIEIDrive drives.

These instruments perform the following functions:
    • Supervision
    • Control of remote I/Os
    • Complete automations based on PLC and Soft-PLC structures

Gefran's new "GF_VEDO" operator panels completely control the machine, and can be programmed with the PLC languages approved by IEC-61131-3 and with on-board or remote I/O boards. Integration of sensors with control, supervision and actuation to field is standard practice for Gefran, which has always integrated its products in turnkey solutions.


Applications
Vertical packaging machines
The main functions of vertical ("form-fill-seal") machines are:
    • Forming container to required dimensions by sealing heat-seal film on bottom and longitudinal side
    • Precise dosing of product
    • Closing by sealing top of bag
    • Final cutting

Gefran's measurement, control, and actuation devices optimize the packaging process, which demands speed, precision, and accurate control of variables.


 Longitudinal seal
Continuous longitudinal sealing of film with high dynamics and low thermal mass is managed by PID loops in series GFX4 4-channel controllers. The solid-state relays with on-board heatsink are equipped with a "fast cycling" control.

 Positioning, Change, Format
The sealer / cutter group is positioned according to the formats to be produced. Position is read with series PZ linear potentiometers or with a PC. GILOGIK II remote I/O modules feed the potentiometers and read position with 16 bit resolution.

 Transverse seal
The discontinuous transverse seal is managed by GFX4 controller loops.

 Machine cycle and operator interface
The machine cycle is managed by the Soft-PLC functions of the GF_VEDO industrial terminals, programmable with languages approved by IEC-61131. The graphics pages are available on TFT screens with 3,5" to 15" touch screen.

 Inputs/Outputs control
GILOGIK II modules control all of the machine's digital and analog inputs/outputs, including direct signals from potentiometers, load cells, and pressure sensors.

 Diagnostics, Alarms, Protections
Any breaks in heating resistances, temperature sensors, and power junctions are diagnosed by the processor in the controllers and immediately generate alarm messages. The GFX4 controller houses fuses and fuse holders.

TC1M / TR1M
     • Platinum thermocouples and resistance thermometers
     • Mineral oxide isolation
     • Thermoelements are isolated from the outer sheathing with compact powder in continuous metal sheathing

TC1 / TR1
     • Platinum thermocouples and resistance thermometers
     • Stainless steel sheathing soldered at one end
     • Single or double element with hot junction isolated or massed

ADV200
     • Inverter with field vector control
     • Power range: 0.75kW to 1.5MW
     • Programming in IEC-61131-3
     • Communication: Modbus RTU (Standard on board), CANopen, DeviceNet, Profibus

ADV20 / ADV50
     • Inverter with V/f control and Sensorless
     • Power range: 0.4kW to 11kW
     • Communication: Modbus RTU (Standard on board), CANopen, DeviceNet, Profibus

XVy-EV
     • Brushless drive
     • Power range: 0.75kW to 500kW
     • Programming in IEC-61131-3
     • Communication: Modbus RTU (Standard on board), CANopen, DeviceNet, Profibus

     

Gefran Solution for Mobile Hydraulics

         

Gefran offers solutions that perform specific functions in the field of Mobile Hydraulics. Gefran linear displacement transducers, displacement sensors, and indicators are ideal for a wide variety of applications: from steering systems through to stability control and to suspensions.

Flexibility
Gefran displacement transducers are based on potentiometric and magnetostrictive technology and provide various performance levels according to application requirements. All of the products:
    • Include a high protection level (IP67 - IP68)
    • Resist high pressures (350-700 bar for cylinder models)
    • Heavy-duty, ready to install in harsh environments or outdoors, and include high resistance to vibration and shock
    • Powered with low voltage 10...30 Vcc

Installation of a linear displacement transducer in hydraulic cylinders: Gefran offers 3 solutions

 Display
The use of simple displays or graphic terminals allows integration with more advanced control systems.

 Checking pressure in hydraulic circuit
TK transmitters monitor oil pressure in the hydraulic circuit for checking vehicle load and stability.

 Roll-over prevention
The synergy of displacement transducers inside (IC, RK) or outside (PC67, PMA) the cylinder with pressure transmitters (TK) guarantees total working control of the bucket to maintain tilt even during load handling. Load control guarantees greater stability and safety.

 Steering system
RK displacement transducers are ideal for installation inside single-action cylinders normally used with hydrostatic steering units. The sensor is designed to guarantee resistance against vibration and shock typical in this application.

 Stability control
Suspension cylinders are an integral part of a sophisticated, electronically controlled system that guarantees vehicle flexibility and stability based on applied weights, work load, and ground conditions. RK and IC transducers are designed to provide precise and positive control in this type of application.

 Load handling control
The use of increasingly complex control systems to check vehicle position and movement of each joint requires the use of transducers with advanced interfaces, such as CANopen, available on all Gefran magnetostrictive transducers.

Lift	Agriculture

Gefran products for Mobile Hydraulics world

Displacement transducers
RK / RK-A / RK-C / IK4 / RK XL0319
     • Magnetostrictive technology                                        • Potentiometric technology
       Standard stroke: 50...4000 mm                                       Standard stroke: 50...1000 mm
       Protection up to IP68                                                       Protection up to IP67
       Resistance to vibrations up to 20g                                 Resistance to vibrations up to 20g
       Shock resistance up to 100g                                          Shock resistance up to 50g

Pressure transducers
The Gefran pressure sensor most appropriate for mobile hydraulic applications is the TK series with M12 (IP67) connector: pressure intervals usually range from 200 to 500 bar (3000 to 7500 psi).
     • Excellent accuract (0,25%)
     • High protection level (IP67)
     • Stability at high temperatures
     • Reliability

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Blow Molding Machines

         

Gefran is a world leader in the field of automation solutions and industrial process controls. Gefran designs and produces sensors, systems, electronic components and drives intended for a wide variety of industrial markets and especially for plastic machines.

Its 30-year of experience lets Gefran offer the right solution for Blow molding machinery of every kind:
    • Extrusion continuous:
        - hydraulics
        - full electrics
    • Accumulator head
        - hydraulics
        - full electrics
    • Stretch Blow molding

Gefran products for Blow molding world



Blow molding machines control units and components able to manage the machine functionalities.
     • wide range display (from 10.4" up to 15"), touch screen or integrated keyboard
     • compact and robust (high resistance to vibrations)
     • remote I/Os with Real-Time Ethernet Fieldbus
     • easy insering in standard Fieldbus networks (Ethernet, Modbus, CANopen)
     • remote Fieldbus keyboards for the machine movements
     • remote and independent multiloop controllers available with integrated power units
     • SSR with heatsink

Gefran's wide range of sensors offer the ability to measure the primary process variables: position, pressure, force, temperature and humidity.
The sensors portfolio includes:

     • new "IMPACT" Melt pressure series specifically designed for the hard Melt applications
     • pressure transmitters TPSA/TK for hydraulic pressure
     • pressure transmitters TSA for blow pressure control and leak tester
     • position transducers with magnetostrictive technology like IK for Parison actuator position control
     • position transducers with potentiometric technology (LT) or magnetostrictive technology (MK) can be used for clamp and translation movements
     • temperature sensors like thermocouples and RTD with customized designs
     • analog and Fieldbus output available

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SieiDrive ADV200 and XVy-EV are two drives families designed to control synchronous or asynchronous motors.
The SieiDrive ADV200 inverter can be used with asynchronous motors controlling the Extruders and pump in the Hydraulic machines.
     • power range from 0.75kW up to 1.5MW
     • Field Oriented Control in Sensorless mode

Servo drive type SieiDrive XVy-EV, for brushless motors, is used for clamp, translations, Parison and nozzle in the Full Electric machines.
     • power range from 1.5kW up to 315kW
     • Feedback from Resolver, Encoder SinCos and Absolute Encoder EnDat, SSI and Hyperface

Main features:
     • communication via GDNet and CANopen
     • integrated PLC under standard IEC 61131-3 (5 programming languages)
     • configuration tool integrating a software oscilloscope with synchronous sampling (buffered) at 250µsec us for an easy commissioning

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