General automation

Feeding technology for ABS pump pistons

In the following picture you can see a spiral conveyor, with which the ABS pump pistons are transported into a linear conveyor. The linear conveyor is brought to the correct height to the base plate by means of a console and is equipped with a forked light barrier for jam shut-off. The spiral conveyor and the linear conveyor are mounted on a base plate.

At the end of the linear conveyor there is a double separator, which is mounted to match the discharge height of the linear conveyor. From singling, the ABS pump pistons are blown through a hose into the transfer station, depending on the two possible positions in the transport direction or against the transport direction. A camera detects the position in which the ABS pump piston has entered the singling station and ensures that the ABS pump pistons are transported on to the transfer station in the correct position so that they are blown into the double transfer handling.

The double transfer handling system brings together two hoses each via a diverter and positions the two mouthpieces vertically with a guide unit to the rotary indexing table. In a downstream station of the rotary indexing table, the ABS pump pistons are deburred and cleaned with the water jet at high pressure.

Feeding technology for rivet nuts

In the first following picture you can see a spiral conveyor, with which the rivet nuts are transported into a linear conveyor. The spiral conveyor is equipped with sound insulation to reduce the noise level and is mounted on a base plate. The linear conveyor is brought to the correct height to the base plate by means of a bracket and is equipped with a forked light barrier for jam shut-off.

At the end of the linear conveyor there is a separator (picture on the right), which is mounted to match the discharge height of the linear conveyor. From the separator the blind rivet nuts are blown down through a hose into the transfer station.

Feeding technology for conical plugs

The following picture shows a spiral conveyor which transports the conical plugs (BETAPLUG) into a non-driven accumulation section. The spiral conveyor is equipped with a sound insulation to reduce the noise level and is mounted on a base plate. The accumulating conveyor is brought to the correct height to the base plate by means of a bracket and is equipped with a proximity sensor for the accumulation shut-off.

The control unit, the measurement amplifier for process monitoring and the valve terminal with the maintenance unit are located on a module console. A separator is mounted at the end of the accumulation section, which is mounted to match the outlet height. From the separator, the conical sealing plugs are blown through a profiled hose in the direction of travel of the accumulation section into the transfer station. The profile hose ensures that the position orientation of the conical plugs is not lost.

Feeding technology for rivet plugs

The following picture shows a spiral conveyor which transports the rivet plugs into a non-driven accumulation line. To reduce the noise level, the spiral conveyor is equipped with sound insulation and mounted on a base plate.

The accumulation section is brought to the correct height to the base plate by means of a console and is equipped with a proximity sensor for the accumulation shut-off. The control unit is also mounted on the base plate.

At the end of the accumulation section there is a separator, which is mounted according to the discharge height. From singling, the rivet plugs are blown upwards out of the singling through a hose into the transfer station.

Process monitoring

Pressing in and pulling setting processes

With the DIGIFORCE® 9311 measurement amplifier X/Y monitoring in industrial applications for economical quality control is possible without any problems. It supports sensors that operate on the basis of ±10V, strain gauge, piezo or potentiometer. PROFIBUS, PROFINET or EtherNet/IP are available for fieldbus integration, with sensor live values on the fieldbus interface. Operation is via a 3.5" colour display with touch operation. 16 different measuring programs can be created. Fast data logging can be done on a USB stick. Worker, admin and ID data can be managed. The display and analysis of the last max. 50 measurements is possible.

The DIGIFORCE® 9311 measurement amplifier monitors processes in which precisely defined functional relationships between two process-relevant measured variables must be proven. For example, triggered by a starting force, the synchronously recorded measured variables X,Y (force/pressure and displacement) are written into the measured data memory. Already during the measurement, real-time signals can indicate that set values have been exceeded and, for example, trigger a force cut-off. Immediately after the measurement, the evaluation phase takes place in the DIGIFORCE® 9311, where it is checked whether the recorded measurement curve meets the evaluation criteria shown by the graphic evaluation elements. If these criteria are violated, the measurement is evaluated as BAD (NOK), otherwise as GOOD (IO). When this evaluation is completed, the trace and the global result IO or NOK are displayed and updated at the fieldbus interface.

For the universal evaluation of different curve progressions, the DIGIFORCE® 9311 has adjustable evaluation elements which can be used to qualify the measured curve progression in IO or NIO. In addition to the classic evaluation windows with defined entry and exit sides, thresholds, trapezoids of type X or Y as well as an envelope curve can also be used as graphic evaluation elements in the DIGIFORCE® 9311. The evaluation element window checks whether the curve in the window area has passed through the defined entrance and exit side.

With the selection of 16 measuring programs, DIGIFORCE® 9311 can switch quickly and flexibly between part variants or different joining parameters. The selection is usually made via I/O or fieldbus, alternatively via the Ethernet interface or manually. The sensor configuration can be defined either independently or globally in each measuring program. The measurement can be triggered and terminated by different internal or external events. The switching signals S1 ... S6 can be freely assigned to the two measuring channels for limit value monitoring. The complete device configuration is carried out either via the touch display or alternatively via the free of charge available PC software DigiControl.

An unabridged description of the DIGIFORCE® 9311 can be found in the brochure of Burster Präzisionsmesstechnik GmbH & Co KG.

The simplest way of "process monitoring" is to switch off the setting process with an intelligent pressure switch. The value of the hydraulic pressure associated with the maximum desired force is entered directly at the pressure switch and can then be used in the control system to switch off the setting force in order to limit it.