Conveying, separating and distribution solution for plastic parts

Details MTF Technik Hardy Schürfeld GmbH & Co. KG

Task:

Conveying, separating, distributing sensitive plastic parts

Different types of plastic parts and associated sprues are produced on an injection molding machine. The size difference between the parts and sprues is very small.

The produced parts should be separated from each other

The good parts should then be distributed into three different containers (buffering)

The conveyor line must be protected against dust

A control system should control the entire system including an additional feed belt

Solution: Combination of closed conveyor belts, rectangular drum and distribution switch

An I-Tech small conveyor belt transports the parts crosswise from an injection molding machine

A Multi-Tech conveyor belt type NL-LD 120 with a low flat belt area for transferring parts and sprues from the small conveyor belt. The conveyor belt is covered with PET on top and features a closed stainless steel transfer housing for conveying parts to the separation drum.

Patented MTF rectangular drum Type 3 R7 B for separating complex part/sprue combinations. The good parts are smaller than the sprues and fall downwards out of the separation drum. This ensures a 100% separation rate for the good parts. The patented mechanism guarantees that no jamming can occur during separation. The smooth stainless steel body of the separation drum is easy to clean.

The good parts are transferred via a Z-conveyor belt type ZL-LD 120. The lower flat belt section is adapted for transfer from the separating drum. The conveyor section is covered from above with PET discs.

A 3-way pneumatically driven diverter is installed at the Z-belt exit. This features MTF Technik's patented switching mechanism, which uses a rotary cylinder. This eliminates jamming processes and allows the diverter to be used for small parts that can easily jam in conventional diverters.

The entire system is controlled by a Siemens S7 controller, including integration of all devices into the emergency stop circuit. Operating statuses are displayed via a plain-text display and a 3-color signal light.

Details MTF Technik Hardy Schürfeld GmbH & Co. KG