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Hekuma's K 2016 'brush' with modular systems

Source: EPPM
News 05.07.2016

At K 2016, HEKUMA will present alongside injection moulding machine juggernaut ENGEL and precision mould-maker HACK, 'scrub!', in an innovative, modular system.

198319 HEKUflex Packaging 03-2015 diminished-background-Klein

HEKUflex was first demonstrated at Fakuma 2015.

The interdental brush developed by pheneo from Bremen, Germany, is produced in an 8-cavity mould on an ENGEL e-motion 170/110.

The automation tasks include taking out the eight brushes, a sampling inspection of each 50th shot and the packaging of two shots each in a pouch with a eurohole.

The modular series HEKUflex celebrated its premier last year, first at the NPE 2015 in Florida and then at FAKUMA in Friedrichshafen. At those shows, the take-out, camera inspection and packaging module for pipette tips were shown, now the focus is on showing how the interdental brushes are taken out, inspected and packaged.

Brush take-out occurs at a typical speed of less than one second in the take out module itself. This requires highest precision and care, because neither the product nor the mould allow very much space. The gripping surface, i.e. the surface of the product that the grippers can touch, is merely 10x10 mm in size. Understandably so, since the brush size is barely 40 x 10 x 3 mm.

The brushes are held in the grippers using vacuum suction to ensure that there is no damage to the product. After take out, the gripper moves to a shuttle plate, where it sets down all of the parts in holes designed for the purpose. Every 50th shot is driven to the left to a camera module. Every other shot goes to packaging directly.

Third-party systems are integrated in two of the three modules. The left module, a camera module, shows a 360 degree camera inspection in collaboration with STÄUBLI. The STÄUBLI TX40 holds the product in front of the camera and turns it. A total of five pictures are taken and analysed. The camera assumes the function of product monitoring. If the interdental brush deviates from the standard, an alarm is signaled. The design and the software for the camera system were created by HEKUMA's own camera development team. In addition to the length and the straightness of the center bar, another challenge is the ability to detect and measure the fine bristles. The inspection time for each part takes 30 seconds.

During the sample inspection, parts will still be taken out, after which they are dropped into a hopper. Two shots are collected on a conveyor belt and packaged in a pouch. The PACKMAT '280VD Sonder' is responsible for the packaging. Once the pouches have been filled, they are welded, a eurohole is punched and then they are dropped onto a conveyor within the automation process. The conveyor moves the pouches into a box. The space-saving position of the good-parts box allows the pouches to be taken out manually during ongoing operation without any danger or bringing production to a standstill.

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