Monday, February 15, 2021
The magic formula for cost-effectiveness and flexibility in the coating of furniture elements is based on the intelligent interaction of powerful individual machines that are adapted to customer requirements. From cleaning the surfaces to spray coating and drying. The forward-looking modular concept from Venjakob uses all possibilities to create customised solutions. The planning of a spray coating system or a new system concept is based on many criteria. Venjakob meets these different requirements with individually customized solutions and modern technologies.
Strong double in the spray coating system
The example at hand is a modular overall system for coating furniture fronts. In the center of the coating line is the Ven Spray Vario spray coating machine, which is characterised by high productivity. The reason for this lies in the technology used by Venjakob: a combination of coating robot and surface spray coating system. Another plus is the flexible use of the spray coating machine. Depending on the furniture element, only the area mode or only the use of robots can be selected.
High system availability and reliable process data
In the selection and technical configuration of the individual components, the customer’s request for high performance and high system availability was met. In addition, when planning the process chain, the focus was on achieving high surface quality and the variable use of individual machines. For example, traditional, high-quality PU wood varnishes on a solvent basis as well as water-based coatings can be used. The status data of the individual machines can be recorded, centralized and analyzed by software. This means that the system operator always has important data available about possible wear parts at an early stage or to be able to better plan requirements and productivity. Process data that can be reproduced at any time, which provides a measurable basis for the trust between customer and supplier.
Surface quality begins with cleaning
Before the actual coating process in the automatic spray coating unit, there is cleaning. This plays an important role for a good coating result. Since finest particles are released when working with wood, which cannot always be completely removed even with good exhaust systems, a dust removal device with an ionizing system is used to clean the furniture fronts. After pre-cleaning and removal of the suspended particles, the static surface charge is neutralized using an ionization system. The workpieces leave the pre-cleaning in a clean and charge-neutral state.
Consistent coating of furniture components
The workpieces are transported to the spray coating area via a closed belt system. While the ABB robot arm thoroughly pre-coats the outer edges of the furniture elements, the conveyor belt continues to run to the second zone, coating the surfaces and edges of the workpieces evenly with four spray guns. During the transport from the robot zone to the surface coating zone, the first coating layer is already dry to recoat, so the second coating can be applied to the edges. Since the belt does not stop here, but continues to run, the coating performance (area / minute) is 50 percent higher than with other robot coating systems, “says Oliver Milde from the German family-owned company Venjakob.
Tags: dust removal, PU, spray coating, Ven Spray VARIO, Venjakob, Wodd
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