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Maximum flexibility and optimum performance from linear robots

Source:International Plastics News for Asia Release Date:2022-02-22 2526
ChemicalPlastics & RubberOthersCompoundingRaw Materials & CompoundsMaterials Handling, Measuring & TestingMolds & ComponentsPlastics Machinery
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The new generation of KraussMaffei LRX linear robots is targeted at plastics processors given its wide selection of axis lengths and wrist axes, optimal integration of peripherals and great flexibility in challenging processes.

The global industrial robots market size grew from US$47.52 billion in 2020 to US$53 billion in 2021 at a compound annual growth rate (CAGR) of 11.5%, according to a report by The Business Research Company (TBRC). The growth is attributed mainly to the companies resuming their operations and adapting to the new normal while recovering from the COVID-19 impact, which had earlier led to restrictive containment measures involving social distancing, remote working, and the closure of commercial activities that resulted in operational challenges. The market is expected to reach US$75.84 billion in 2025 at a CAGR of 9%, according to the report.

 

The global industrial robots market is segmented by product type into articulated robots, linear robots, cylindrical robots, parallel robots, scara robots, others; by end-user industry into automotive, electrical and electronics, healthcare & pharmaceuticals, food & beverages, rubber & plastics, metals & machinery, others; by application into pick and plane, wielding and soldering, material handling, assembling, cutting and processing, others. In terms of market, the Asia Pacific was the largest region in the market, accounting for 69.2% of the total in 2021. It was followed by the North America, Western Europe and then the other regions. 


KM_2021_12_AUT LRX web.jpg

The new-generation KraussMaffei LRX linear robots offer greater flexibility in 

complex, challenging injection moulding processes


 

Maximum flexibility and more operating convenience

In the area of linear robots, the new generation of KraussMaffei LRX linear robots is targeted at plastics processors given its wide selection of axis lengths and wrist axes, optimal integration of peripherals and great flexibility in complex, challenging injection moulding processes. The EcoMode function enables energy savings of up to 20%.  The new, larger handheld pendant provides more information and easier control and operation. Like its predecessor, the new generation features outstanding precision and cost-effectiveness with its super-fast acceleration that translates into shorter cycle times. 


"In developing the LRX linear robot, we made it a point to incorporate our customers' requirements. This includes, for example, a wide range of options and the ability to switch production from one application to the other quickly and efficiently. Thanks to the modular system, we provide our customers custom-tailored system solutions with this approach in mind. Later upgrades and retrofits are possible as well," explains Dr. Volker Nilles, Executive Vice President New Machines at KraussMaffei.

 

The new linear robot product line also includes customised gripper solutions tailored optimally to the mould and the component. All components are integrated centrally into the MC6 control system and are easy and intuitive to operate. This is a boost for operating convenience.

 

Energy savings of up to 20% 

Energy efficiency and resource-conserving production are becoming more important all the time. As a result, KraussMaffei is now offering the EcoMode function as a standard feature for all linear robots in the LRX series. Eco-Mode ensures that the operating speed of the robot is adapted to the cycle of the injection moulding machine. This reduces waiting times but has no influence on the cycle time. This, in turn, relieves the load on the mechanical system and the drive train and provides energy savings of up to 20%

 

More potential for conserving resources is offered by the optional air-saving valves for generating a vacuum with integrated air-saving control. This interrupts vacuum generation as soon as the component is gripped securely and the configured vacuum value is reached. When the threshold value is undershot, vacuum generation is activated again. Compared to conventional vacuum valves, this function uses far less compressed air. This, in turn, saves energy and money. 


KM_2021_12_AUT LRX linear robot wrist web.jpg

The wide selection of pneumatic and servo wrist axes ensures 

high robot precision in parts handling.


 

The development of the new handheld pendant was focused on providing the operator with more information and greater convenience during operation. The new capacitive multitouch panel has a diagonal screen size of 10.1". Thanks to the high resolution of 800 x 1280 pixels and the pressure-sensitive touchscreen, the operator now has a clearly arranged view of information that he or she can respond to quickly.

 

The number of configurable circuits offered in standard models has been increased from the current 4/4 to 8/8. All the latest-generation LRX linear robots now offer the ability to implement up to 8 vacuum and 8 pneumatic circuits. In addition, the media portal on the Y-axis has been optimised to make gripper changes even faster and easier. The bottom line: greater flexibility for plastics processors, particularly for complex and challenging injection moulding processes.

 

Shorter cycle times and greater process reliability

The outstanding features of the linear robots in the LRX/LRX-S series from KraussMaffei include particularly fast acceleration, which enables short cycle times and high productivity. This applies to the new generation as well. Furthermore, the LRX linear robots have excellent precision for component insertion—another winning feature. "The repeatability is less than 0.1 mm. Our in-house measurements have obtained yielded values of 1.8 mm from other manufacturers. We are thus offering our customers significant added value," says Mr. Nilles. These values shorten the mould opening time for component insertion and demoulding and enable faster production in a safe process. The bottom line here as well: shorter cycle times and thus greater productivity in injection moulding production.

 

Fast, precise, and modular – the new generation of KraussMaffei LRX linear robots provide plastics processors even greater flexibility in complex, challenging injection moulding processes with the usual high precision, speed and repeatability. The new generation is offered in combination with injection moulding machines from KraussMaffei or other manufacturers as well as a standalone unit.  



-This article also appears in the International Plastics News for Asia - February 2022 issue. 

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