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Linear plain bearings open doors in laser marking systems from Ostling
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Östling Marking Systems develops and manufactures u. a. compact "all-in-one" laser marking systems that meet very high requirements in terms of functionality and safety. Design and ergonomics can also convince. Come along Linear bearings from the IgusConstruction kit for use - for example in the "Aiobox", the new entry-level laser marking system.
Traceability and mandatory labeling of products are requirements that apply in more and more industries in the industry and so powerful labeling systems are in demand. The Solingen-based company Östling Marking Systems GmbH has been developing and finishing such systems for fifty years, and also shows that those companies that are most successful are those who attach great importance to customer proximity.
At Östling, the principle of customer proximity also applies in the geographical sense. The company was founded 1968 by Rolf Östling near Stockholm. Its marking systems used for the first time electrolytic processes for the permanent marking, for example of tools and cutlery. This high-quality process was particularly in demand in Germany and here in the Solingen / Remscheid area. For this reason, Rolf Östling also moved the company headquarters to the center of sophisticated tool and cutlery production.
From the steel stamp to the electronics marking
Today the company offers the industry a wide range of products “Made in Solingen” for product labeling. The spectrum ranges from the laser system for filigree electronic marking, through the needle embossing or scribing, which is often used in the automotive industry, to the massive stamping mechanism for steel slabs and rails. The sister company Stommel & Voos, also based in Solingen, is responsible for this area.
The wide range is advantageous from the customer's point of view. Product manager Frank Dietrich: “We can give really neutral advice because we have all common technologies in our range.” Of course, the right, in-house developed software is available for each device. B. identification with 2D codes or consecutive numbering is allowed.
20 years of laser competence
That the trend is towards lasers is partly due to the fact that a. on the versatility, speed and environmental friendliness of the process, which does not require any consumables. As early as 1994, the company acquired a stake in a manufacturer of laser systems, and since 2004 the laser has been developed and manufactured in-house.
During this time, laser systems have become smaller and smaller. With the “All-In-One” systems (AIO), the laser head and rack were combined in a single housing in a very small space for the first time. With the “Lasebox”, Östling has also had an extremely compact tabletop system for laser marking in its range for several years. The special requirements arise here u. a. from the safety regulations for laser systems: The laser beam must never penetrate outside.
Entry level for laser marking
Brand new in the Östling program is the "Aiobox" as an entry-level device for laser marking. It is even more compact than the Lasebox and less expensive. The door is opened and closed manually here. By contrast, the security level remains high: a "shutter" light indicates that the device is ready. If the operator opens the door with just a gap, the laser is deactivated immediately. This is how it corresponds to the laser protection class 1: The device is always in safe condition for the operator.
Door guide with telescopic rail and rope system
The manufacturer has found an elegant solution for conveniently opening and closing the door, which allows good access to the work area from three sides. The door is guided in two vertically mounted telescopic rails from the motion plastics specialist Igus, which were originally designed for horizontal use, e.g. B. were developed in excerpts. The door stays exactly where the operator wants it because it is connected to a counterweight via a cable system, which is also located on the back of the housing Igus linear guides proceeds.
The result is a very smooth movement and therefore pleasantly easy operation. In addition, this solution is inexpensive, as it should be for an entry-level device. Not least because the components used are part of the standard flat guide range. In addition, as is usual with all Igus bearings, it does not have to be lubricated with oils or greases.
In addition, a tight seal between the door and the housing is guaranteed. And that is crucial in laser applications. The telescopic rail does not leave any gap through which the laser beam could exit. So you don't need a separate seal. "Another advantage is that the aluminum rail only takes up very limited space and still allows the door to be opened completely," explains Frank Dietrich. From an aesthetic point of view, the telescopic rail is also convincing, especially since the base plate of the Aiobox is also made of aluminum.
Table adjustment via spindle linear units
Another linear system from the Igus construction kit is installed in the adjustment of the work table. Here the table is adjusted using the linear guide until the focus of the product is found. The two spindle linear units "Drylin SLW-1040", which are synchronized in parallel via a belt, can be driven by the crank attached to the outside of the housing. The table is adjusted using two synchronously running spindles.
The high design quality of the Östling devices is characterized, among other things, by the fact that the Timing belts for parallel synchronization, is completely integrated in the bottom of the housing. The company is currently working on an optional electrical adjustment of the table. The motor-driven spindle linear unit is then also supplied by Igus.
Uncomplicated and good cooperation
At Östling, the lubricant-free polymer plain bearings are standard components when it comes to rotary or linear movements. This also applies to larger special systems that, for. B. apply laser markings in a rotary cycle with high throughput. "Our goal is to solve movement tasks with Igus parts," explains Frank Dietrich in conclusion.
This goal can be easily achieved with the laser systems, with the scratch marking systems there are application limits due to the high forces that act during marking. The product manager also emphasizes the uncomplicated cooperation as positive: "If our designers have an idea for the use of an Igus bearing, a call is enough and we always get a sample sent quickly."