Recording system with integrated weighing bridge

Details MTF Technik Hardy Schürfeld GmbH & Co. KG
Details MTF Technik Hardy Schürfeld GmbH & Co. KG

Task: Bunkering and packaging of injection-molded parts in cleanroom

Medical devices are manufactured on a high-speed injection molding machine. 48 parts are produced per cycle (5 seconds).

The machine has a laminar flow module above the tool and is located outside a clean room

The products are to be guided via an on-site QS switch onto an encapsulated conveyor belt, which transports the products through a wall into a clean room

The products will initially be stored in the cleanroom. The goal is to temporarily store up to 1,000 products.

In the second step, the components must be packed into bags of approximately 5,000 each. The goal is to ensure that the products are only filled into the bags in layers to achieve improved cooling. The intermediate bunkering step is also intended to facilitate cooling.

An exact count of the parts in the bag is not necessary

Solution: Encapsulated conveyor belt combination to receiving system with scale

Conveyor belt in encapsulated design with closed rear wall and stainless steel covering of the side guide profiles, adapted to the task of the QS switch and sealed to the clean room wall

Conveyor belt combination as an intermediate hopper, consisting of two straight conveyor belts. The lower conveyor belt moves very slowly and doses the components onto the second conveyor belt, which then transfers the components into the film bags at increased speed.

The conveyor belts are made of stainless steel in all product-contact areas. This design eliminates any edges that could damage parts.

A cover on the steep conveyor belt, adapted to the shape of the cleat, ensures that no parts can fall down to the floor

Pick-up system with stainless steel turntable and stainless steel bag holders with quick-release clamps for bag fastening. The bag holders are loosely mounted on the turntable with centering bolts.

At the filling position, a pneumatically height-adjustable scale is integrated below the turntable. This lifts the respective bag holder and tares the weight.

The conveyor belts are also controlled via the control system of the receiving system

Once a desired (partial) quantity is reached in the container, the receiving system rotates to the next position

Example videos

Details MTF Technik Hardy Schürfeld GmbH & Co. KG