Buffer system for larger plastic parts

Details MTF Technik Hardy Schürfeld GmbH & Co. KG

Task: Buffering of massive plastic parts during the night shift

Plastic parts (automotive) are to be buffered for an unmanned night shift. This corresponds to 22 containers measuring 600 x 400 x 400 mm.

The available space is very limited. There is an area of ​​approximately 6m x 2m between the injection molding machine and the wall.

The parts (covers in the engine compartment) are quite massive and must be gently cushioned after demolding.

Starting parts and reject parts must be removed separately from the production process.

The system must already be prepared for future expansions (feeding and discharging the containers into another room).

The parts are very hot after demolding and should be cooled before being placed in the container.

Solution: Stable lift station with reversible discharge conveyor

Reversible discharge conveyor with a durable polyester track running transversely beneath the tool. Good parts are transported to the buffer, while rejected and scrap parts are ejected to the operator side of the machine.

A springy polyester upper section is inserted under the belt of the discharge conveyor to cushion the impact of the parts.

Parallel to the machine, an angled conveyor belt is mounted, which feeds the parts to the buffer station in a timed manner and fills the containers in the upper lift position.

Extremely stable lift station with two independently operating pneumatic cylinders, each with a 550mm stroke, load capacity well over 100kg, max. container change time approx. 22 seconds.

Siemens S7 controller for controlling the lift, the conveyor belts and for communication with the injection molding machine

Example videos

Details MTF Technik Hardy Schürfeld GmbH & Co. KG