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Schmalz introduces a technological innovation with its vacuum generation without compressed air, which is perfect for use in autonomous warehouses.
In traditional warehouses gripping systems are limited to a defined handling task. Electricity and compressed air supply and the exchange of data are tied to a certain place. In autonomous warehouses with constantly changing structure of goods, a robot picks the product independently, with integrated electrical vacuum generation and wireless data exchange. The complete process is much more efficient.
The driving factor for increasingly modern automation systems is not only new technological possibilities—it’s primarily driven by the customers: They demand individualized products that should be available in the desired amount, at the right place and as quickly as possible. Companies are adapting by increasingly networking their factories, designing intelligently, gearing towards efficiency and organizing as flexibly as possible within the framework of Industry 4.0.
In the case of warehouses, the setup of a warehouse and the connected processes used to be predictable to a large extent, but nowadays companies must prepare themselves for changing conditions. As the goods structure changes constantly, orders frequently do not resemble each other at all. Incidentally, this applies to business-to-business transactions as much as it does to business-to-consumer transactions. The German E-Commerce and Distance Selling Trade Association (bevh) published impressive information for 2015: Turnover of goods in online trade was worth around 46.9 billion euros—a growth of 12% in comparison to the previous year. The leader in the goods groups was the clothing sector, followed by electronic items/telecommunications and books/e-books. Online dealers such as Amazon or Zalando are also required to organize their warehouses as flexibly as possible to reach the highest possible degree of delivery flexibility and accuracy. The vision: an autonomous, self-thinking and self-acting warehouse.
But what does this vision mean for automation and gripping technology, in particular? The demand for gripping technology is increasing enormously. The vacuum specialist has been actively involved for years in designing gripping technology that can lead to more intelligent, efficient and flexible production processes. The company recently brought a vacuum and pressure switch to the market, for example, which sends important process information via NFC (Near Field Communication) directly to the user’s smartphone or tablet. Schmalz is also working on various solutions for the vision of an autonomous warehouse and cooperates closely with research institutes, customers and other market partners. Conventional gripper systems are generally limited to a defined handling task by the gripper and the control technology. In addition, they can only be adjusted to changing requirements to a limited Degree. Robots do not only have to be mobile in an autonomous warehouse, but they must also be able to deal with constantly changing conditions: For example, they must be able to grip many different goods in exact numbers - from books to shoe boxes to electronic items. At the same time, the warehouse needs systems that bring intelligence, deliver information and learn and work together with the humans on site—potentially to the point of human-robotic cooperation.
Schmalz, therefore, offers a large range of solutions that can significantly optimize such automation processes — from single components such as vacuum generators or switches all the way through to complete gripping systems. Their range integrates diverse functions: Intelligent vacuum generators, for example, are equipped with energy and process control. This allows energy consumption to be controlled and optimized, among other features. Conventional vacuum generation by compressed air is put to the limits in the autonomous warehouse. Often, compressed air is only available at a few sites or not available at all in shipping dealer warehouses. If compressed air is available, it is always accompanied by hoses. Schmalz are introducing a new technological development: a gripper with vacuum generation that does not use compressed air. The vacuum is generated electronically from a battery and is fully functional without expensive compressed air. This makes the gripper both energy efficient and mobile. It can also be used with mobile and self-sufficient robots, which pick production orders at various locations in the warehouse. The hose guide is completely integrated into the gripper—so there are no interference contours that could affect the process. Furthermore, Schmalz provides various modular connections from its wide range of vacuum end effectors, in order to be able to handle different products reliably and safely.
Schmalz grippers with vacuum generation also have the required intelligence. They communicate bidirectionally over an IO-Link interface to the higher-level control unit and are equipped with functions for energy and process control. This provides information that can help promptly detect creeping changes in the gripping system or avoid impending failures. The information can then be collected in central cloud services, which holds added benefit for the user because they can draw conclusions on the automation process and optimize it further.
The task as specialists in gripping technology is to recognize trends such as the autonomous warehouse early on and support the customers with innovative solutions. “Schmalz is ‘the front’ of the gripping process; the hand of the robot. Therefore, the challenge is especially large. If the gripping technology does not work, the whole automation process ceases. But Schmalz is happy to take on this challenge, as shown by the new technological innovation for vacuum generation without compressed air.