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Cross-slide buffer integrated to IMM

Task: Buffering of medical technology parts directly below injection moulding machine

Medical technology articles are produced on a fast-running injection moulding machine. The cycle time is about 7 seconds. 128 components are produced per cycle.
A buffer capacity for 6 plastic containers 600 x 400 x 280mm (L x W x H) is to be created.
The buffer is to be integrated into the machine as far as possible and may only protrude minimally over the machine dimensions.

Solution: U-shaped conveyor belt system with two cross buffers and roller conveyor integrated into the machine

A combination of two straight conveyor belts, two cross-slide units and a roller conveyor for the filled containers.
The empty containers are fed along the centre axis of the machine via a straight GL conveyor belt and are positioned at the end of the belt in the centre under the mould and the dropout switch mounted there.
The number of parts per container is determined via the machine pulses.
QA parts, start-up parts or rejects can be discharged via the diverter to the opposite side of the machine.
Once the target number of units has been reached, the container is pushed transversely from the belt onto a second belt conveyor by means of a pneumatic transverse pushing unit.
The second conveyor transports the containers in the machine bed to the operator side.
At the end of the belt, a second transverse pushing process takes place onto a roller conveyor, so that the filled totes roll off again towards the infeed point of the empty totes - according to the intended FIFO principle.
The operator can thus load and unload the containers at one position. This saves time and space and shortens routes.
Due to the U-shaped installation - including the use of the machine bed for the empty containers and the machine overhang on the operator side for the filled containers - the whole device is almost completely integrated to the footprint of the machine. There are virtually no protruding components except the necessary safety devices (emergency stop button, etc.).