Individual requirements need individual solutions

Task definition:

A customer was looking for a machine for pre-rolling aluminium screw caps for home use, e.g. for capping small quantities of bottles. A large number of different closures were to be processed and the conversion was to take place as quickly as possible.

Objective:

The machine should be able to roll on the following closures:

• PP28x15
• PP31.5×24 with oil spout
• PP31.5×24 without oil spout
• MCA28x15
• MCA28x13

The performance was to be around 2000 lids per hour. The stock volume of the sorting plant was to contain at least 1 box (8000 pieces). The machine was to stop automatically after a certain number.

Solution:

A TV2000 was used as the basic framework for the system. A rotary indexing table with 6 stations continuously cycles the lids. The lids are fed into the lid dispenser in the correct position by a TSB waterfall sorter and a flexible drop channel. This is followed by the 6 cycles of the sealing unit:

1. Station: Stripping the lid
2. Station: Query whether a lid is present
3. Station: Preforming the thread without flanging
4. Station: Release the lid using a three-jaw gripper and pneumatic motor
5. Station: Blowing out the lid into a cardboard box
6. Station: Empty station with query as to whether the lid has been blown out cleanly

The system is also very light (250 kg) and only requires 230 V electricity and compressed air. This solution enables efficient and precise processing of different types of closure while at the same time being easy to operate and quick to change over.