BOLÇİ Bolu Chocolate produces over 200 tons of chocolate items each month. The company needed to meet its promise of delivering chocolate products that are ‘untouched by human hand’. Omron and Innovas joined forces to commission a line of three Omron robots in the packaging section of the factory’s production line, with the aim of enhancing production quality.
BOLÇİ currently exports to 13 countries but wants to increase this number each year. It also wants to build its production capacity and efficiency; minimise any production errors; and improve its infrastructure. Prior to introducing the Omron robots, the chocolates were placed manually into dividers in the packaging area. However, the company faces seasonal variations in demand and at special occasions in the year. As a result, sales could increase on a daily basis and the production needed to be adjusted accordingly.
Innovas is one of the leading system integrators in the food industry and was employed as the system integrator for this project. The integrator looked for a compact solution for this project and wanted to be able to supply everything from a single channel. Innovas has been using Omron products for many different applications over the years, including programmable logic controllers and servo systems and knew that it could meet the needs of this very special project. Omron also has considerable experience in pick-and-place applications for chocolate and food products.
Omron suggested the four-arm Quattro robot, which is compact and has a unique kinematic structure. Innovas selected the robot because of its speed and flexibility as well as its ability to cope with the variety of products in the box. Omron also recommended its PackXpert programme, which uses a wizard-based user interface and meets the needs of applications in the packaging sector.
Omron has brought its innovations together in the form of i-Automation! – a concept based on developing the intelligent, integrated and interactive automation systems of the future. These systems will help manufacturers to achieve higher levels of efficiency, flexibility, safety, integration, quality and connectivity.
Innovas installed three Omron Quattro robots for BOLÇİ. These are now used to pick-and-place the chocolates into the dividers, which has saved time considerably. The three robots work in sync with each other as part of an integrated system that includes visual inspection, safety and the robotic systems. Because chocolate is a very delicate material, it’s important that its shape doesn’t deteriorate during the process. This requires accurate positioning and a very precise handling of the product. The robots determine how many pieces will be put into the system each day and enable a repeatable quality and standard to be achieved.
So, how does the new system work in practice? One person places the dividers on the conveyor and the other feeds chocolates through the 12 feed channels. There is also a final visual check on the output of chocolates before they are sent to packaging.
The chocolates are brought to the robots by conveyors. The chocolates can be at different angles, but the camera system checks them and the robots capture the products with a vacuum system, based on the position and product information determined by the camera.
In the packaging area, the three robots place the chocolates into boxes and dividers. BOLÇİ has about 40 boxes of different sizes and types. On a screen, the operator chooses the boxes to be filled and the appropriate mechanical adjustments are made. The system has four different chocolate feeding entry points for each robot. Up to 12 different chocolates can be stacked in four boxes at the same time.
The new robots have resulted in a 40% increase in production capacity. They have also enabled BOLÇİ to give shorter deadlines to its customers. The robots have helped BOLÇİ to reach its required production quality standards by minimising production errors and by enabling the company to provide quality products to its customers.
In the future, BOLÇİ plans to increase its production capacity by extending the number of Omron robots it uses on the existing line. The company aims to complete its automation processes by implementing similar projects, with the ultimate objective of becoming a smart factory that can comply with Industry 4.0.
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