SYSTEMS FOR PROCESSING ELEMENTS

Description

State of the art

[0001] Systems for processing elements are known. The system comprises, for example, system sub-units, including a feeding device for providing the elements, a processing device, and a hollow transport line for transporting the elements from the feeding device to the processing device.

[0002] The small-scale elements include, for example, joining elements such as functional or connecting elements like rivets and the like.

[0003] The elements are fed, for example, to the processing device or the tool, whereby, for example, a compressed gas, e.g., compressed air, is used as a transport medium or as an energy carrier, e.g., for transporting the elements, to pick up individual elements from a set of elements and for automated element feeding.

[0004] Compressed air is used in pneumatic systems, which, for example, feature a cylinder-piston assembly that utilizes compressed air as an energy carrier. In industrial applications, the compressed air supply is centrally provided and distributed to various users, for example, at different locations. Compressors are used, in particular, to compress the air.

[0005] A disadvantage of many compressed air applications is that compressed air is an inefficient energy carrier, with losses or energy losses exceeding 90 percent. This results in comparatively high operating costs. Therefore, compressed air as an energy carrier has traditionally been viewed critically. In light of, for example, the global climate crisis, compressed air as an energy carrier is also criticized for its inefficiency. Purpose and advantages of the invention

[0006] The object of the present invention is to provide a system for processing elements in which the disadvantages discussed are minimized or avoided.

[0007] This task is solved by the independent claims. The dependent claims address appropriate and advantageous further training measures.

[0008] The invention relates to a system for processing elements, comprising a feeding device, a processing device, and a hollow transport line, wherein the feeding device and the processing device are connected to each other via the hollow transport line, wherein the processing device is configured for processing elements, wherein the feeding device is configured to receive a plurality of elements and transfer them to the hollow transport line, wherein the elements can be transported via the hollow transport line to the processing device in order to supply the processing device with the elements, and wherein a pneumatically operated system component is provided for operating the feeding device and / or for operating the processing device. The system is configured, for example, as a technology system, e.g., as part of a production facility, for instance, for setting rivets or functional elements on a workpiece.

[0009] Examples of components include fasteners such as screws and rivets, self-piercing rivets, clinch rivets, and / or functional components such as self-piercing, press-fit, and embossed nuts and / or self-piercing, press-fit, and embossed bolts. This makes the feeding device versatile and flexible for use in a variety of insertion tasks. The feeding device can supply the respective components to a corresponding processing unit via the transport line.

[0010] The processing tool is, for example, a tool such as a setting tool or a pressing, punching, and / or clinching tool. The processing tool is, for example, a tool for clinching, riveting, self-piercing, and / or pressing in elements such as functional components and other press-fit elements. The processing tool is specifically designed to pick up elements, for example, from a transport line such as a transport channel or feed hose, and to process and attach them to a workpiece. For example, the elements can be pressed and / or punched into a single- or multi-layer component using the processing tool.

[0011] The workpiece is typically positioned, for example, secured, using holding and / or positioning devices such as clamping devices. The operation and handling of these devices, such as opening and releasing them, is typically pneumatic. Alternatively, electrically operated clamping devices are possible.

[0012] The feeding device, for example a feeding unit or feeding arrangement, is designed to receive and convey the elements from a delivery form, such as bulk material, poured, or with an undefined spatial orientation. The feeding device is specifically designed to bring the elements, at least substantially, into a defined orientation or arrangement and into the transport line for onward transport to the processing equipment.

[0013] The core of the invention lies in the fact that the system comprises a gas compressor unit for generating and supplying compressed and / or accelerated compressed air, wherein the gas compressor unit is located in an installation space in which the system is housed, and wherein the gas compressor unit is configured to draw air from the environment of the processing device and / or from the environment of the supply device in the installation space and to supply compressed and / or accelerated compressed air to the pneumatically operated system component for the operation of the system. The gas compressor unit is, for example, configured to generate a compressed and / or accelerated volume of gas, which constitutes the compressed air. Compressed air or gas pressure is understood to mean a volume of gas that is present, for example, in an externally bounded gas space. The gas volume can be a static gas volume or a dynamic or moving gas volume.Compressed air exhibits . e.g. Compressed air is a pressure level that is comparatively only slightly above the surrounding or atmospheric pressure level, for example, 10%, 20%, or 30% above it, or, for example, 10% to 30% above an average pressure level of approximately 1 bar. Compressed air also includes a volume of gas or air that has a pressure level that is, for example, several times the ambient pressure, such as 2 to 10 bar, up to a pressure level of over one hundred or even several hundred bar, which can be technically generated or safely supplied from ambient air at ambient pressure.

[0014] For example, the gas compressor unit is designed to draw in air from the environment of the processing device and / or from the environment of the feed device in the installation room and to provide compressed and / or accelerated compressed air for the pneumatically operated system component to operate the feed device and / or to operate the processing device.

[0015] For example, not according to the invention, the system comprises exactly one gas compressor unit. For example, not according to the invention, the system comprises exactly one gas compressor unit which supplies several processing devices with compressed air. For example, a respective system component of a processing device is supplied with compressed air. For example, not according to the invention, several system components can be supplied with compressed air simultaneously by the exactly one gas compressor unit.

[0016] For example, the system comprises two, three, four, or five processing units. For example, each processing unit has at least one pneumatically operated system component. For example, not according to the invention, one or all of the pneumatically operated system components of the two, three, four, or five processing units are supplied with compressed air by exactly one gas compressor unit. For example, the gas compressor unit supplies exactly one pneumatically operated system component or supplies several or all of the pneumatically operated system components of the system.

[0017] For example, the system comprises two, three, four, or five feed devices with one pneumatically operated system component or with several pneumatically operated system components. For example, the multiple feed devices comprise exactly one gas compressor unit (not according to the invention), or exactly two gas compressor units. For example, multiple feed devices each comprise exactly one gas compressor unit. For example, each of the multiple feed devices comprises exactly one gas compressor unit.

[0018] For example, the supply device includes a gas compressor unit. For example, the processing device includes a gas compressor unit. For example, the gas compressor unit is a separate unit from the supply device and the processing device. For example, the gas compressor unit is separate from the supply device and the processing device in the installation room, e.g., mobile or stationary.

[0019] For example, exactly one gas compressor unit of the system supplies compressed air to two, three, four, or five processing units of the system. For example, exactly one gas compressor unit of the system supplies compressed air to two or more than two pneumatically operated system components of the system.

[0020] For example, exactly one (not according to the invention), or exactly two, or exactly three, or exactly four gas compressor units are present in a system. For example, the exactly one, or exactly two, or exactly three, or exactly four gas compressor units in a system are present, for example, as part of a feeding device and / or as part of a processing device and / or as a separate gas compressor unit outside of a feeding device and / or outside of a processing device.

[0021] For example, the feeding device comprises one or more pneumatically operated system components, wherein one or more system components can be supplied with compressed air by exactly one gas compressor unit of the system.

[0022] For example, the processing device includes one or more pneumatically operated system components, wherein the one or more system components can be supplied with compressed air by exactly one gas compressor unit of the system.

[0023] For example, the processing device includes a pneumatically operated system component, such as a compressed air consumer. For example, the processing device includes a pneumatically operated system component designed as a clamping system component for clamping or holding the workpiece or multiple workpiece layers.

[0024] The proposed system architecture incorporates decentralized, on-site compressed air supply. This system represents an alternative to centralized compressed air supply. It avoids the disadvantages of centrally supplied compressed air as an energy carrier. The losses and energy losses associated with a centralized compressed air supply are avoided or at least minimized. Furthermore, operating costs can be reduced compared to systems with a centralized compressed air supply. In the proposed system, the proximity of the gas compressor unit to the point of compressed air consumption minimizes leakage and / or line losses. For example, overcompression losses can be minimized, resulting in significant savings compared to a centralized compressed air supply.

[0025] For example, different compressor principles can be used to meet varying requirements for the compressed air supply of a system component, with regard to the pressure level and / or volume flow rate of the supplied compressed air. This allows the selected compressor principles to be used in a targeted manner and appropriate to the specific application.

[0026] The gas compressor unit, or gas compression unit for example, draws gas, usually air, from the immediate vicinity of the processing equipment and / or the feed device in the installation room. The drawn-in ambient air has an ambient air pressure, or atmospheric pressure, e.g., an ambient air pressure of approximately 1 bar.

[0027] The gas compressor unit is designed to provide the gas volume with a predefinable compressed air volume and / or a predefinable pressure level.

[0028] Compressed air allows, for example, the elements to be pneumatically transported by means of the gas volume, such as a gas flow. The compressed air transport takes place in the transport line, so that the elements reach the processing equipment via the transport line.

[0029] The compressed air for the pneumatically operated system component of the feeding device is generated directly within the feeding device or feeding arrangement and not from a separate compressed air system. Compressed air is supplied without the need for externally supplied compressed air. In particular, the system can completely eliminate the need for a central or externally supplied compressed air system.

[0030] Overall, the proposed system avoids losses such as overcompression losses, network losses, pressure losses, and / or leakage losses. Control and regulation of the gas compressor unit enables dynamic and precisely demand-based compressed air generation. The exact compressed air volume and / or pressure level required for the pneumatically operated system component can be advantageously specified.

[0031] The system component represents, for example, a compressed air consumer.

[0032] The system may, for example, have exactly one system component. Typically, several such system components are present. The system may, for example, have several pneumatically operated system components. Several different configurations are possible. For example, exactly one gas compressor unit may be assigned to exactly one system component. Alternatively or additionally, exactly one gas compressor unit may be assigned to several system components. This single gas compressor unit may supply, for example, exactly two, exactly three, or more than three system components with compressed air. It is also conceivable that several gas compressor units, for example, exactly two gas compressor units, may be assigned to exactly one pneumatically operated system component. It is possible, for instance, that the multiple, or for example, exactly two, gas compressor units operate simultaneously and supply the exactly one assigned system component with compressed air at the same time.For example, it is possible that of the several or of the two gas compressor units, only one gas compressor unit is operating at any given time and supplying exactly one assigned system component with compressed air.

[0033] For example, multiple gas compressor units, such as exactly two gas compressor units, are assigned to multiple system components. For instance, two or more gas compressor units supply two or more system components with compressed air. The supply of compressed air to multiple system components can occur simultaneously, with exactly one active gas compressor unit or with multiple active gas compressor units.

[0034] For example, not according to the invention, exactly one gas compressor unit is provided which supplies generated compressed air, such that elements can be transported in the transport line and / or a system component can be operated with this one gas compressor unit. For example, several system components can be supplied with compressed air. With compressed air from, for example, exactly one gas compressor unit, the elements can be fed to the processing device via the transport line, and, for example, each additional system component can be supplied with compressed air via a corresponding further compressed air line. For example, the several system components can be supplied with compressed air from the exactly one gas compressor unit via their respective compressed air lines.

[0035] The gas compressor unit can be installed as a separate unit in the vicinity of the processing equipment or be part of a feeding device.

[0036] For example, in addition to the transport line for the pneumatic transport of elements to the processing device, a separate compressed air line is provided between the gas compressor unit and a system component of the processing device or a system component located on the processing device. The system component is, for example, a drive mechanism. For instance, the separate compressed air line is intended to supply compressed air, provided by the single gas compressor unit, to drive a movable piston of the processing device. For example, the compressed air supplied via the separate compressed air line serves for the pneumo-hydraulic and / or pneumatic drive of a piston of the processing device.For example, a separate compressed air line, or several separate compressed air lines, may be located between the gas compressor unit and the processing equipment. One compressed air line might be used, for instance, for the pneumatic operation of a system component of the processing equipment or a system component on the processing equipment.

[0037] Other variations of these variants are also possible. Alternatively, a system for clinching a material is proposed, comprising a clinching device, wherein the clinching device is configured for clinching, wherein the system is located in an installation space, and wherein a pneumatically operated system component is provided for operating the clinching device. The system includes a gas compressor unit for generating and supplying a compressed and / or accelerated gas volume, wherein the gas compressor unit is located in the installation space, and wherein the gas compressor unit is configured to draw in air from the environment of the clinching device in the installation space and to provide compressed and / or accelerated compressed air to the pneumatically operated system component for operating the clinching device.

[0038] With a system using a clinching device, the advantages outlined above can be achieved, and the disadvantages discussed in systems with a central compressed air supply can be avoided.

[0039] The clinching tool, such as a clinching tool or a clinching tool, has, for example, a pneumatic, hydropneumatic, or pneumohydraulic drive. The gas compressor unit serves, for example, to supply the pneumatic, hydropneumatic, or pneumohydraulic drive with compressed air.

[0040] The gas compressor unit is, for example, separate from or integrated into the processing device, for example, separate from the clinching tool or attached to it.

[0041] For example, the processing tool is a setting tool, clinching tool, riveting tool, self-piercing riveting tool, and / or press-in tool. An electric drive, such as an electric motor, is also possible as a drive for the processing tool, such as a setting tool, or for the setting tool, clinching tool, riveting tool, self-piercing riveting tool, and / or press-in tool.

[0042] The clinching tool is, for example, mounted on a robot arm and can be moved and controlled within the space. Alternatively, the clinching tool is fixed in position within the installation area.

[0043] According to the invention, it is proposed that several gas compressor units be provided. This allows the system to be configured variably, e.g., adaptable to the required compressed air volume or pressure level. Furthermore, the system is adaptable to the number of consumers, the number of pneumatic system components, the number of supply devices, the number of processing devices, and / or the number of clinching devices.

[0044] The system comprises, for example, exactly two, exactly three, exactly four, or more than four gas compressor units. This allows for flexible system configuration, for example, when several different or several identical system components are required for operating the feeding device and / or the processing equipment. Two, more than two, or all (not according to the invention) of the multiple gas compressors are, for example, identical in construction, such as their design. Two, more than two, or all (not according to the invention) of the multiple gas compressors are, for example, identical in their operating principle, such as their operating principle. Two, more than two, or all of the multiple gas compressors are identical or different in their performance level.

[0045] Alternatively, exactly one system component can be supplied simultaneously with a respective compressed air or compressed air flow by exactly two or more than two gas compressor units.

[0046] It is possible that exactly two gas compressor units are provided for supplying compressed air to exactly one consumer or one pneumatic system component. This one system component can, for example, only be supplied with compressed air by exactly one of the two or more gas compressor units.

[0047] According to the invention, two or more than two or all of the multiple gas compressors differ, for example, in their operating principle or design. Two or more than two or all of the multiple gas compressors differ, for example, in their performance level.

[0048] For example, the pneumatically operated system component for operating the processing device includes an element filling station and / or a tool changing station. For example, the element filling station and / or the tool changing station are temporarily located away from or at a distance from the processing device, but within the same working environment. For example, for element filling and tool changing, the element filling station or the tool changing station can be temporarily connected to the processing device.

[0049] For example, the element filling station, such as a rivet element filling station, serves to fill an element storage container, such as an element magazine, on the processing device. The element filling station may, for example, hold multiple elements. Using compressed air supplied by the gas compressor unit, the element filling station can be pneumatically operated, for example, via a pneumatic connection between the gas compressor unit and the element filling station. The gas compressor unit is, for example, part of the feeding device. Alternatively, the gas compressor unit is located outside the feeding station. For example, the elements can be pneumatically transferred from the element filling station to the processing device.For example, when the element filling station and processing device are coupled, the elements can be transferred from the element filling station to an element storage unit, which, for example, remains permanently attached to the processing device. For example, a slide valve of the element filling station is pneumatically operated.

[0050] To transfer the elements from the element filling station to the processing device or element storage, the processing device is moved towards the stationary element filling station and brought into a coupled state. After the transfer, the processing device is moved away from the element filling station again. Alternatively, to transfer the elements, the element filling station is moved towards the processing device or element storage at the processing device and then moved away from the processing device again after the transfer.

[0051] For example, the tool change station makes it possible to exchange or change a tool on the processing device for another tool available at the tool change station. This involves a e.g. Temporary coupling of the tool changer and the processing device takes place. For example, the tool is removed from the processing device and replaced by a tool at the tool changer. The tool from the processing device is, for example, picked up by the tool changer. To change a tool in the coupled state, by attaching a tool from the tool changer to the processing device while removing the previously existing tool from the processing device, e.g.The processing unit is moved towards the tool-changing station and, after the tool change, moved away again. Conversely, it is also possible for the tool-changing station to be moved towards the processing unit for the tool change and, after the tool change, moved away from the processing unit again.

[0052] For example, not according to the invention, exactly one gas compressor unit is provided which is configured to supply several pneumatically operated system components with compressed and / or accelerated compressed air. For example, not according to the invention, exactly one gas compressor unit is provided which is configured to supply several similar and / or several different pneumatically operated system components with compressed and / or accelerated compressed air.

[0053] For example, the compressed air supplied by the gas compressor unit can be used to operate a pneumatically operated system component on the processing device, or several pneumatic system components on the processing device. For example, the compressed air supplied by the gas compressor unit can be used to operate a pneumatically operated system component that can be temporarily connected to the processing device or is permanently attached to the processing device.

[0054] For example, the supply device comprises exactly one gas compressor unit, which can provide compressed air for operating several pneumatic system components. For example, it provides exactly one gas compressor unit, like e.g.Exactly one compressor provides compressed air, which is used to operate the element filling station, the tool change station, a pneumatic system component on the processing device (such as a pneumatic drive for a die of the processing device), and / or for the pneumatic transport of elements from the feeding device via the transport line to the processing device. For example, two, three, or four different system components are supplied with compressed air by this single gas compressor unit. For example, several pneumatic components, such as control and / or regulating valves, are present in the system for the supply of compressed air, controlled, for example, by the control unit. The pneumatic components can be operated with the compressed air supplied by the gas compressor unit.

[0055] A variation arises from the fact that a gas compressor unit is designed to provide compressed air at different pressure levels. These different pressure levels can be predefined over time, for example, by means of a system control unit. For instance, a single gas compressor unit can be configured, for example, with the control unit or with adjustment devices, to provide compressed air at the required pressure level. It is conceivable that the gas compressor unit supplies a consumer or system component with different compressed air pressure levels, for example, a single system component that requires a different compressed air pressure level depending on the time. It is also conceivable that the gas compressor unit can selectively supply exactly one of two consumers.Optionally, one pneumatic system component can be supplied with compressed air from two system components, where each of the two system components requires a different compressed air pressure level. The gas compressor unit, for example, can be switched between, say, a first system component and a second system component, so that only one system component at a time can be supplied with the appropriate compressed air pressure level by the gas compressor unit. This is advantageous, for example, when only one of several pneumatic system components is operating at any given time.

[0056] According to the invention, at least two gas compressor units are provided, wherein the two gas compressor units differ from each other in their design and / or operating principle. This enables suitable or optimal operation of the system components with a required compressed air volume flow and / or a respective compressed air pressure level.

[0057] The at least two gas compressor units include, for example, one gas compressor unit that operates according to the dynamic compressor principle. The at least two gas compressor units include, for example, one gas compressor unit that operates according to the dynamic compressor principle and comprises an axial turbo compressor.

[0058] The at least two gas compressor units include, for example, a gas compressor unit that operates according to the dynamic compressor principle and comprises a radial turbo compressor.

[0059] The at least two gas compressor units, for example, include a gas compressor unit that operates according to the displacement principle.

[0060] The at least two gas compressor units include, for example, a gas compressor unit that operates according to the displacement principle and has a rotary compressor and / or a piston compressor.

[0061] One exemplary modification of the system involves the inclusion of one gas compressor unit operating on the dynamic compressor principle and one gas compressor unit operating on the positive displacement principle. This allows the system to be flexibly adapted to different requirements regarding the pressure level and / or volume flow of the compressed air. For example, the system includes exactly one gas compressor unit operating on the dynamic principle and exactly one gas compressor unit operating on the positive displacement principle.

[0062] In the dynamic compressor principle, air is drawn in between the blades of a rapidly rotating compressor impeller and accelerated to a high speed. The accelerated gas or air is then passed through a diffuser, where the kinetic energy of the airflow is converted into static pressure. Gas compressor units operating on the dynamic compressor principle are frequently found in dynamic compressors, such as turbo compressors with an axial or radial flow pattern.

[0063] In displacement compressors, such as those used in piston compressors, air is drawn into one or more compression chambers. The intake inlet of each chamber is then closed, and the volume of each chamber is gradually reduced. During this process, the air is compressed within the chambers. Once the pressure reaches the desired pressure level or pressure ratio, a connection or valve to the chambers is opened. The compressed air then flows out of the chambers to the pneumatically operated system component due to the continued reduction in volume. For example, the air flows from the compression chambers into a subsequent volume, such as an exhaust system. The air flows out of the compression chambers to the system component at a corresponding pressure level.

[0064] According to one variant, the gas compressor unit is designed to provide a pressure level that is below a pressure level 0.3 bar above an outlet pressure, or below a pressure level 0.2 bar above an outlet pressure, or below a pressure level 0.1 bar above an outlet pressure, wherein the gas compressor unit operates according to the positive displacement principle. The outlet pressure reflects e.g. the pressure level of the intake air is restored and is regularly in the range of 1 bar or ambient air pressure.

[0065] The gas compressor unit is designed to provide a pressure level that corresponds to an absolute gas pressure of over 2 bar. e.g. 3 bar or from e.g. 4 bar or from e.g. 5 bar or from e.g.The absolute gas pressure is provided on the pressure side of the gas compressor unit by the compressed or accelerated compressed air, i.e., on the outlet side of the gas compressor unit. For example, the gas compressor unit is designed to supply compressed air to a system component that receives it temporarily but continuously. For example, the gas compressor unit is designed to feed compressed air into a compressed gas storage tank. For example, the gas compressor unit is designed to feed the compressed gas storage tank so that a predefinable pressure level of the gas contained therein, such as air, prevails.

[0066] The gas compressor unit, which operates according to the displacement principle, includes, for example, a rotary compressor and / or a piston compressor.

[0067] One modification is characterized by the fact that the gas compressor unit is adapted to supply a system component located downstream of the gas compressor unit with a pressure level that is highest in the system.

[0068] For example, the gas compressor unit is adapted to supply a downstream system component, such as a compressed air consumer, with the highest pressure level in the system, whereby the pressure level generated by the gas compressor unit is no higher than 10% than the pressure level actually required by the system component. This ensures a high level of operational reliability.

[0069] For example, the gas compressor unit is adapted to supply a system component downstream of the gas compressor unit, such as a compressed air consumer, with the highest pressure level in the system, whereby the pressure level generated by the gas compressor unit is not higher than 20% than the pressure level actually required by the system component.

[0070] For example, the gas compressor unit is adapted to supply a system component downstream of the gas compressor unit, such as a compressed air consumer, with the highest pressure level in the system, whereby the pressure level generated by the gas compressor unit is not higher than 30% than the pressure level actually required by the system component.

[0071] For example, the gas compressor unit is adapted to the system component directly connected to it, such as a compressed air consumer, whereby the directly connected system component or compressed air consumer has the highest pressure level in the system, out of all system components or compressed air consumers present in the system. Thus, the generated or supplied pressure level of the compressed air is no higher than 10%, 20%, or 30% of the required pressure level, for example, the maximum pressure level needed by a system component.

[0072] For example, the gas compressor unit is adapted to supply a system component located downstream of the gas compressor unit with the highest pressure level in the system, whereby the pressure level can be dynamically and flexibly adjusted during operation, e.g. to a varying required pressure level.

[0073] In one exemplary configuration, the gas compressor unit is a separate sub-unit of the system. This allows for flexible operation of the system components and / or compressed air consumers within the system. A sub-unit can be designed to be mobile, for example, manually movable by a person and / or equipped with a motorized drive. Alternatively, a sub-unit can be designed as a separate assembly. This sub-unit can be equipped with a housing and / or a platform, including casters or similar features, allowing for spatial mobility, such as within the installation area. The sub-unit can be moved to and positioned at various locations, such as points of use within the installation area. To connect the sub-unit to a system component requiring compressed air, a compressed air line is provided between the gas compressor unit of the sub-unit and the consumer or system component.The compressed air line serves to convey the compressed and / or accelerated air or compressed air from, for example, a pressure side of the gas compressor unit and, for example, a compressed air inlet of the system component.

[0074] In the case of the multiple gas compressor units belonging to the system according to the invention, or in the case of the multiple gas compressor units present in the system according to the invention, each individual gas compressor unit is designed as a separate subunit. Alternatively or additionally, exactly two or more than two gas compressor units are incorporated in one subunit. The exactly two or more than two gas compressor units in exactly one subunit are, for example, identical. The exactly two or more than two gas compressor units in exactly one subunit differ from each other, for example. According to the invention, the different gas compressor units differ at least in their design and / or operating principle. In the case of more than two gas compressor units, at least two of the multiple gas compressor units differ from each other according to the invention.

[0075] In exactly one subunit, for example, there is at least one gas compressor unit operating according to the dynamic compression principle, and at least one other gas compressor unit operating according to the positive displacement principle. A subunit may, for example, have a piston compressor and additionally an axial and / or a radial compressor.

[0076] In a simple configuration, the subunit includes, for example, a blower unit or a compressed air pump, which can be operated with, for example, an electric drive.

[0077] Each gas compressor unit can be individually adjusted or preset in its operating settings, for example, using adjustment devices or a control unit. Each gas compressor unit preferably has its own associated compressed air connection, for example, for connection to a compressed air line such as a compressed air hose.

[0078] For example, the feeding device includes a gas compressor unit. The gas compressor unit is either an integral part of the feeding device or connectable to it. For instance, the connectable part or the gas compressor unit is connected to the feeding device via a compressed air line connection. The compressed air line connects the gas compressor unit and the feeding device.

[0079] For example, the supply device includes a gas compressor unit, which is designed, for instance, as a gas flow generation device. The gas compressor unit operates, for example, according to the dynamic displacement principle. The supply device includes, for example, an axial compressor and / or a radial compressor.

[0080] The feeding device includes, for example, a storage container for receiving multiple elements. The feeding device also includes, for example, a hollow section of tubing through which the elements can be moved from an element transfer point, where the elements can be inserted into the tubing section, to a connection point of the feeding device. The feeding device is designed as a separately positionable peripheral unit for supplying a processing device with elements. The elements movable within the tubing section can be discharged from the feeding device via the connection point. The connection point is designed for a particularly gas-tight connection between the tubing section and a hollow transport line that can be connected to the feeding device.When the pipe section and the transport pipe are connected, the elements can be transported in the hollow transport pipe from the connection point to the processing device, which is spaced apart from the feed device. The elements can be transported to the connection point by means of a gas flow in the pipe section. Preferably, the feed device includes the gas compressor unit such that the gas flow in the pipe section is provided in such a way that the elements can be moved from the element transfer point through the pipe section to the connection point by means of the gas flow. The elements can be transported out of the pipe section from the connection point by means of the gas flow provided by the gas compressor unit. The feed device is located, for example, in an installation room. The gas compressor unit is located in the installation room in which the system is housed.The gas compressor unit is designed to draw in air from the surroundings of the feed device within the feed device's installation area in order to provide compressed and / or accelerated compressed air. This compressed air is used, for example, to provide the gas flow. The compressed and / or accelerated compressed air is used to operate the feed device and / or the processing equipment.

[0081] For example, the processing unit includes a gas compressor unit. The gas compressor unit is either an integral part of the processing unit or can be connected to it.

[0082] For example, the connectable part or the gas compressor unit is connected to the processing device via a compressed air line connection. The compressed air line connects the gas compressor unit and the processing device.

[0083] Following a modification, the gas compressor unit features an electric drive. This enables a proven drive method for the gas compressor unit. The electric drive includes, for example, an electric motor.

[0084] The gas compressor unit, for example, has an electric drive, and means are available to supply the electric drive with a portion of the excess energy from another system sub-unit. This allows for an energy-efficient system.

[0085] The energy surplus is, for example, at least a portion of the energy quantity from another system subunit. This other system subunit is, for example, another component of the system and / or another process step within a process within the system. The energy surplus is, for example, at least a portion of the energy quantity as energy from another component of the system and / or another process step within a process within the system.

[0086] For example, the gas compressor unit has a mechanical drive. This represents a robust and simple drive option.

[0087] According to another variant, the gas compressor unit has a mechanical drive, with means being provided that derive a portion of the movement from another system sub-unit for the mechanical drive of the gas compressor unit. This is particularly energy-efficient. Character description

[0088] Further features and advantages are explained in more detail with reference to the exemplary embodiments shown schematically in the figures. Specifically, the figures show: Fig. 1 a schematically represented system for processing elements, comprising a feeding device, a processing device and a transport line, Fig. 2 the order according to Fig. 1 without workpieces and without robots, Fig. 3 an upper section of the feeding device Fig. 1 and 2 Front view without a front-facing access door, Fig. 4 an alternative system, Fig. 5another alternative system is highly schematic, Fig. 6 another system partially schematically represented and Fig. 7 another schematically represented system.

[0089] The in Figures 1 - 7 The systems / arrangements shown do not fall under the present invention, since each contains only exactly one gas compressor unit.

[0090] For corresponding elements of different embodiments, the same reference symbols are sometimes used below.

[0091] Fig. 1 shows a System 1 for processing elements (not shown in the Figs. 1-3) in perspective view. System 1 comprises a feeding device 2, a processing device 3, and a hollow transport line 4. The transport line 4 is designed, for example, as a hollow, flexible feeding hose. The transport line 4 is connected to the processing device 3 at one end 4b via a line connection 3a of the processing device 3. The processing device 3 is designed to process the elements. The feeding device 2 serves to receive a plurality of elements and to transfer the elements to the transport line 4.

[0092] System 1 is used to act on or process workpieces 5, 6, 7, and 8 that are permanently attached to a processing station 11. The action on workpieces 5-8 to attach an element at a joint is carried out using the processing device 3 for processing the elements or, for example, for placing an element at the joint on the respective workpiece 5-8. For example, the angled workpieces 5-7 are each riveted to workpiece 8, which is designed as a flat sheet metal layer. The workpieces 5-7 are positioned at regular intervals from each other on a top surface of workpiece 8. The processing device 3 is designed according to Fig. 1 present in the area of ​​workpiece 5.

[0093] The processing device 3 is connected to a robot 9 or mounted on a movable robot arm 10 of the robot 9. The robot 9 serves to operate and spatially move the processing device 3, for example to attach the elements to the workpieces 5-8.

[0094] The processing device 3, designed, for example, as a rivet processing device, has a hydropneumatic or pneumohydraulic drive 15 and a C-frame 12 with two legs. A punch unit 13 is mounted on one leg of the C-frame 12, and a die unit 14 of the processing device 3 is mounted on the other leg (see figure). Fig. 2 ).

[0095] System 1, including robot 9 and processing station 11 with workpieces 5-8, is positioned in installation room R. Installation room R, which occupies, for example, part of a production hall, is in Fig. 1 schematically outlined with dashed lines, indicating.

[0096] Fig. 2 The diagram shows system 1 without a robot, excluding workpieces 5-8.

[0097] The feeding device 2 and the processing device 3 are connected to each other via the hollow transport line 4. The elements are transported by a gas flow within the transport line 4, which is particularly gas-tight, in the transport direction T from the feeding device 2 to the processing device 3. The elements arriving at the processing device 3 are forwarded in corresponding sections of the processing device 3 and set at the respective joining point of the workpieces 5-8 by means of the punch unit 13. The processing device 3 is used, for example, to set rivets such as self-piercing rivets, clinch rivets, or functional elements onto the workpieces 5-8.

[0098] The feeding device 2 is designed as a separate peripheral unit for the processing device 3, for example with rollers 2a on the underside for moving the processing device 3 on a solid surface.

[0099] The feeding device 2 has a storage container 16 with a receiving volume 16a for holding or receiving a plurality of elements (not shown). The storage container 16 is connected to a sorting bowl 18 via a hollow, pipe-like intermediate piece 17, allowing individual element passage. In the sorting bowl 18, the elements arriving from the intermediate piece 17 are individually positioned in the correct orientation and transferred to a buffer line 19 connected to the sorting bowl 18. In the buffer line 19, the elements are arranged in a row, each in the same orientation. From the buffer line 19, the elements continue downwards to a singulation device 20 for the elements.

[0100] From the singulation device 20, the elements individually enter a hollow section of the line 21 of the feed device 2. Through the section of the line 21, the elements reach a connection point 22 of the feed device 2.

[0101] At connection point 22, the elements can be discharged from the feed device 2. At connection point 22, the line section 21 is, for example, gas-tightly connected to one end 4a of the transport line 4. In the illustrated embodiment, the line section 21 and the transport line 4 are formed or connected integrally as a single unit. The line section 21 and the transport line 4 are, by way of example, formed by a single, continuous piece as a feed hose.

[0102] The elements can be transported by means of a gas flow G in line section 21 and in the transport line 4 from the connection point 22 to the processing device 3, which is spaced apart from the feed device 2. The elements are, for example, individually separated in the area of ​​the singulation device 20 from the gas flow in line section 21 (see figure). Fig. 3The elements are carried along by the prevailing gas flow G and transported towards the connection point 22. The gas flow continues in the transport line 4, so that the elements are moved from line section 21 into the transport line 4. Due to the gas flow G in the transport line, the elements are transported with low friction in the transport line 4 to an end 4b of the transport line 4. The end 4b of the transport line 4 extends to the line connection 3a on the processing device 3, for example in the area of ​​the punching unit 13. The end 4b of the transport line 4 is connected to the line connection 3a on the punching unit 13, through which the elements enter a punching channel of the punching unit 13 individually and in the correct position, for example, by being blown in with the help of the gas flow G.

[0103] System 1 includes a pneumatically operated system component. This pneumatically operated system component serves, for example, to operate the feeding device. e.g. is part of the feeding device 2.

[0104] System 1 comprises a gas compressor unit 23 for generating and supplying compressed and / or accelerated compressed air. For example, gas compressor unit 23 is configured as a gas flow generation device to provide the gas flow G. The supply device 2 includes the gas compressor unit 23 to supply the gas flow G in line section 21 and further in the transport line 4. The gas compressor unit 23 is intended, for example, exclusively for the supply device 2 to convey the elements by means of the gas flow G. Atmospheric air L is drawn in from the environment via a suction side 23a of the gas compressor unit 23, which is open to the surroundings or atmosphere, and is compressed and / or accelerated in the gas compressor unit 23. The gas compressor unit 23 can be operated electrically, for example, with an integrated drive or electric motor.A pressure side 23b of the gas compressor unit 23 is connected, for example, to the singulation device 20 via a compressed air connecting line 24. The compressed air-gas flow enters the section of line 21 connected to the singulation device 20. The gas flow exerts a suction or carrying force on a singulated element at a discharge side of the singulation device 20. The incoming compressed air flows into the line section 21 and carries, for example, a single singulated element that is foremost in the singulation device 20, and further into the line section 21. The singulation device 20 singulates the element foremost (when viewed from the singulation device 20) from a series of elements that are located in the buffer line 19 at the singulation device 20.

[0105] With the gas flow and the gas compressor unit 23 active, the elements separated one after the other by the singulation device can be moved through the line section 21 to the connection point 22.

[0106] In the connected state of line section 21 and transport line 4, the elements from the connection point 22 can be transported with the gas flow out of line section 21 and further transported in transport line 4 to the processing device 3.

[0107] The gas compressor unit 23 is designed to draw in air L from the environment of the feed device 2 on the suction side 23a of the gas compressor unit 23 in order to provide the gas flow.

[0108] The gas compressor unit 23 is designed to draw air at atmospheric pressure from the environment of the feed device 2, i.e., portions of the air in the installation space R of the feed device 2, onto the suction side 23a of the gas compressor unit 23 in order to provide the gas flow. The suction side 23a is located, for example, within a housing 25 of the feed device 2 or in an interior space 26 of the feed device 2 enclosed by the housing 25, wherein the interior space 26 is open to the environment or connected to the air space in the installation space R. Alternatively or additionally, the suction side 23a is, for example, located outside the housing 25 of the feed device 2 and open to the air space in the installation space R. The gas compressor unit 23 includes, for example, an airflow generator.

[0109] The box-like housing 25 has side walls 25a, a rear wall 25b, a base 25c, a top 25d, and a hinged door 25e. The top 25d is open to the surroundings by means of an open hinged flap, which Fig. 1 and 2 The diagram shows that sufficient ambient air always reaches the suction side 23a of the gas compressor unit 23 during operation. For example, electrical wiring for supplying the feed device 2 with electrical energy is not shown. The feed device 2, for instance, does not have a supply interface for a decentralized compressed air supply. Accordingly, the feed device 2 does not have a compressed air connection or inlet for supplying compressed air to system 1 that is provided externally or centrally.

[0110] The gas compressor unit 23 includes, for example, a gas compression unit for the gas flow generated on the suction side in the line section 21. The gas flow can be provided by compressed and / or accelerated air with the gas compressor unit 23, which is possible in various ways. The gas compressor unit 23, for example, has a compressed air compression unit. The gas compressor unit 23 operates, for example, according to the turbo compressor principle with a radial compressor and / or axial compressor, for example with a multi-stage radial compressor and / or with a multi-stage axial compressor.

[0111] A higher-level control unit 27 of the feed device 2 (not shown in detail) comprises a computer control system or software and a computer and storage unit and serves to control the operation of the feed device 2. The control unit 27 serves, in particular, to control a predefinable, adjustable, and / or variable power level of the gas compressor unit 23. With the control unit 27, for example, the compressed air compression, the compressed air generation, and the resulting available air output can be predefinable and / or varied. The available air output can be adapted by the control unit 27, in particular, to a real, e.g., currently required, air demand, for example, dynamically adjusted. The real air demand can be, in particular, programmable and / or, for example, dynamically adjusted to the actual demand based on sensor values ​​acquired by sensors (not shown).The sensor values ​​recorded relate, for example, to the speed of the conveyed elements in line section 21 and / or transport line 4. With the control unit 27, it is possible, for example, to adjust the speed of the conveyed elements to a target or setpoint value stored in software, based on the sensor-detected speed of the conveyed elements in line section 21 and / or transport line 4.

[0112] The sensor means of the feed device 2 are intended for the acquisition and provision of the sensor values, for example for the provision of sensor values ​​for further processing by the control unit 27.

[0113] An alternative version of System 1, not shown, is characterized by the fact that a feeding device with the components according to Feeding Device 2, but without a housing 25, is directly present on the processing device 3. Alternatively, a feeding device with the functions or components according to Feeding Device 2 is present, for example, on the robot 9. The robot 9 includes, for example, a magazine for the elements with the storage container and / or additionally a sorting bowl and / or a buffer line. For a system designed as a technology system, for example, exactly one feeding device, or exactly two, or more than two feeding devices are provided. For example, it is also possible that in an alternative system at least one component according to Feeding Device 2 is present on the processing device 3 and at least one other component according to Feeding Device 2 is present on the robot 9.

[0114] In an alternative system or technology system, for example, it is arranged that the conveying of the elements at the processing device 3 and / or at the robot 9 is provided in order to convey the elements from a conveying device to a filling station of the processing device.

[0115] In an alternative system or technology system, for example, the elements are arranged to be conveyed from a magazine on the processing device to a processing station of the device, allowing for the presentation of a large number of elements. The processing station of the processing device includes, for example, a setting head comprising the punch unit and the die unit.

[0116] In a multi-lane overall system with, for example, parallel operating systems according to System 1, it is possible to configure the respective lane to be designed according to System 1 described above.

[0117] Another alternative system configuration is characterized by the presence of a standard, commercially available compressor in the feeding device 2 and / or on the processing device 3 and / or on the robot 9. The compressor operates, for example, on the positive displacement principle and is implemented as a piston or screw compressor.

[0118] Fig. 4 differs from System 1 according to Fig. 1This is because the supply device 2 does not have an integrally integrated gas compressor unit. Instead, system 1 has a separate gas compressor unit 29, which is shown in a highly schematic way. During operation, the gas compressor unit 29 draws air L from the installation space R on its suction side and provides compressed and / or accelerated compressed air on its pressure side. The compressed air leaves the gas compressor unit 29 on its pressure side, for example, in the form of a gas flow. From the gas compressor unit 29, the compressed air flows into a gas-tight discharge line 30 connected to the pressure side of the gas compressor unit 29. The discharge line 30 splits into, or rather opens into, a line section 30a and a line section 30b.

[0119] The compressed air in the exhaust line 30 flows into the line section 30a and / or into the line section 30b via valves in the exhaust line 30 and / or in the line section 30a and / or in the line section 30b (not shown).

[0120] A pneumatically operated, unnamed system component of the feed device 2 can be supplied with compressed air via the line section 30a connected to the feed device 2.

[0121] A pneumatically operated, unnamed system component of the processing device 3 can be supplied with compressed air via the line section 30b connected to the processing device 3.

[0122] Fig. 5 Figure 1 shows a highly schematic alternative system 1 with a decentralized compressed air supply. System 1 comprises a feed device 2, a processing device 3, and a transport line. 4.On the processing device 3, a workpiece W is present between a punch unit 13 and a die unit 14, as shown. e.g. a sheet metal workpiece into which an element 31 can be pressed, which is shown in a highly schematic way.

[0123] The supply device 2 comprises exactly one gas compressor unit 23, for example, exactly one compressor. The gas compressor unit 23 is, for example, electrically operated or includes an electric motor. Air L can be drawn from the environment of the supply device 2 to the gas compressor unit 23 on the suction side. On the pressure side, compressed air, for example at a pressure of 3 to 6 bar, is provided during operation of the gas compressor unit 23 for the pneumatic operation of system components.

[0124] Elements 31, which are present in multiples in a storage container 16 of the feeding device 2, are separated by a singulation device 20. Individual elements are pneumatically conveyed one after the other from the singulation device 20 to the processing device 3 via a hollow transport line 4 supplied with compressed air by the gas compressor unit 23 via a connecting line 24.

[0125] Compressed air supplied by the gas compressor unit 23 is also used to supply a system component 33 of the processing device 3 via a hollow compressed air line 32, which is formed on the pressure side between the gas compressor unit 23 and the processing device 3. The system component 33 is pneumatically operable. For example, the system component 33 is a drive mechanism for the pneumatic or pneumohydraulic actuation of a linearly movable piston of the processing device 3, or, for example, a locking device for the mechanical blocking of a movable component. The system component 33 is supplied with compressed air via the hollow, externally gas-tight compressed air line 32.

[0126] Compressed air supplied by the gas compressor unit 23 is delivered via a further hollow compressed air line 34, which is located on the pressure side between the gas compressor unit 23 and a system component 35 of the processing device 3. The system component 35 comprises a tool change station 36 with, for example, four tools 37 that are detachably and correctly positioned on the tool change station 36. The tools 37 can each be individually exchanged for a tool on the processing device 3, e.g., for a tool of a punch unit of the processing device 3, which is done pneumatically using the compressed air supplied via the compressed air line 34.

[0127] Compressed air supplied by the gas compressor unit 23 is delivered via a further hollow compressed air line 38, which is located on the pressure side between the gas compressor unit 23 and a system component 39 of the processing device 3. The system component 39 comprises a storage container 40 in which a plurality of elements 41, such as rivets or functional elements, are stored. For example, the storage container 40 is designed as a magazine or element magazine, into whose internal volume the elements 41 are received and can be filled from the outside. The elements 41 can be pneumatically inserted into a Fig. 5The magazine (not shown) for holding several elements 41 on the processing device 3 is exchanged pneumatically using the compressed air supplied via the compressed air line 38. For example, to fill the magazine for holding elements 41, the processing device 3 moves, for example by means of a robot on which the processing device 3 is mounted and spatially movable, to the storage container 40 filled with elements 41. The elements 41 are then transferred pneumatically, and subsequently the processing device 3 moves away from the system component 39.

[0128] Fig. 6 Figure 1 shows an arrangement with exactly one gas compressor unit 23 for the decentralized supply of compressed air for a system component 35 and for another system component 39. The gas compressor unit 23 according to Fig. 6For example, a compressor is used. System components 35 and 39 are mounted on a common boom 42. The gas compressor unit 23 draws in air L from the surroundings of the gas compressor unit 23 and compresses it to, for example, 3 to 6 bar. The compressed air is conveyed via a compressed air line 43 to the boom 42 and then on to system component 35 and / or system component 39.

[0129] The gas compressor unit 23 can be installed as a separate unit in the vicinity of the processing device or be part of a feeding device 2.

[0130] Finally, it shows Fig. 7 An alternative system 1' with decentralized compressed air supply is shown in a highly schematic form. System 1' according to Fig. 7 comprises exactly one gas compressor unit 23. Otherwise, system 1' comprises twice the components of system 1 according to Fig. 5 .

[0131] System 1' comprises a first feeding device 2, a second feeding device2', A first processing device 3 with a workpiece W and a second processing device 3' with a workpiece W. A first transport line 4 is provided between the first feeding device 2 and the first processing device 3.

[0132] A second transport line 4' is provided between the second feeding device 2' and the second processing device 3'.

[0133] System 1' comprises exactly one gas compressor unit 23. For example, the one gas compressor unit 23 is part of the supply device 2; for example, the gas compressor unit 23 is a compressor. The gas compressor unit 23 draws in air L from the environment of the supply device 2 and supplies several, for example, all pneumatic system components of system 1'.

[0134] On the pressure side, the gas compressor unit 23 provides compressed air, for example at a pressure of 3 to 6 bar, for the pneumatic operation of pneumatically operated system components 35, 39, 35' and 39'. For example, system components 35 and 39 are system components of the processing device 3. For example, system components 35' and 39' are system components of the processing device 3'. The gas compressor unit 23 also provides compressed air for transporting elements 31 from the feed device 2 to the processing device 3. The gas compressor unit 23 also provides compressed air for transporting elements 31' from the feed device 2' to the processing device 3'.

[0135] Compressed air lines 32, 34, 38, 32', 34' and 38' are provided for this purpose.

[0136] The gas compressor unit 23 is connected to a compressed air reservoir 45 of the feeding device 2' via a compressed air line 44. Compressed air supplied by the gas compressor unit 23 is thus conveyed into the compressed air reservoir 45 and made available there to supply the individual elements 31' to the processing device 3' via the transport line 4'.

[0137] Alternatively, the compressed air reservoir 45 of the feeding device 2' can also be omitted. For example, the compressed air reservoir 45 may not be present as part of the feeding device 2', but may be located at another point in the system 1'.

[0138] For example, in addition to the gas compressor unit 23, exactly one further gas compressor unit or several further gas compressor units may be provided, for example as part of the feed device 2' and / or as a separate gas compressor unit 23 outside the feed device 2 and / or 2' or outside the processing devices 3, 3' and / or as part of at least one of the processing devices 3, 3'. Reference symbol list

[0139] 1, 1'System 2, 2'Feeding device 2aRoller 3, 3'Processing device 3aLine connection 4, 4'Transport line 4a, 4bEnd 5-8Workpiece 9Robot 10Robot arm 11Processing station 12C-Bracket 13Stamping unit 14Matrix unit 15Drive 16Storage container 16aIntake volume 17Intermediate piece 18Sorting pot 19Buffer line 20Sing device 21Line section 22Connection point 23Gas compressor unit 23aSuction side 23bPressure side 24Connecting line 25Housing 25aSide wall 25bRear wall 25cBottom 25dTop 25eDoor 26Interior 27Control unit 28Subunit 29 Gas compressor unit 30 Exhaust line 30a, 30b Line section 31, 31' Element 32, 32' Compressed air line 33 System component 34, 34' Compressed air line 35, 35' System component 36 Tool change station 37 Tool 38, 38' Compressed air line 39, 39' System component 40 Storage tank 41 Element 42 Gallows 43 Compressed air line 44 Compressed air line 45 Compressed air reservoir

Claims

1. System (1, 1') for processing elements, wherein the elements are connecting elements, joining elements such as screws and rivets, self-piercing rivets, clinch rivets and / or functional elements such as self-piercing, punch-in, press-in, stamp-in nuts and / or self-piercing, punch-in, press-in or stamp-in bolts, comprising a feed device (2), a processing device (3) and a hollow transport line (4), wherein the feed device (2) and the processing device (3) are connected to one another via the hollow transport line (4), wherein the processing device (3) is designed to process elements, wherein the feed device (2) is designed to receive a plurality of elements and transfer them to the hollow transport line (4), wherein the elements can be transported to the processing device (3) via the hollow transport line (4) in order to supply the processing device (3) with the elements, wherein a pneumatically operable system component for operating the system (1, 1') is provided, wherein the system (1) comprises a gas compressor unit (23) for generating and supplying compressed and / or accelerated pressurized air, wherein the gas compressor unit (23) is provided in an installation space in which the system (1) is accommodated, wherein the gas compressor unit (23) is designed to take in air from the environment of the processing device (3) and / or from the environment of the feed device (2) in the installation space and to supply compressed and / or accelerated pressurized air for the pneumatically operable system component for the operation of the feed device (2) and for the operation of the processing device (3), characterized in that a plurality of gas compressor units are provided, wherein two gas compressor units are provided, wherein the two gas compressor units differ from one another in terms of construction and / or the principle of operation.

2. System for press-joining a material, comprising a press-joining device, wherein the press-joining device is designed for press-joining, wherein the system (1) is provided in an installation space, wherein a pneumatically operable system component for operating the press-joining device is provided, wherein the system (1) comprises a gas compressor unit for generating and supplying a compressed and / or accelerated gas volume, wherein the gas compressor unit is provided in the installation space, wherein the gas compressor unit is designed to take in air from the environment of the press-joining device in the installation space and to supply compressed and / or accelerated pressurized air for the pneumatically operable system component for the operation of the press-joining device, characterized in that a plurality of gas compressor units are provided, wherein two gas compressor units are provided, wherein the two gas compressor units differ from one another in terms of construction and / or the principle of operation.

3. System (1) according to Claim 1, characterized in that the pneumatically operable system component for operating the processing device (3) comprises an element filling station and / or a tool changing station.

4. System (1) according to one of the preceding claims, characterized in that a gas compressor unit (23) is designed to supply pressurized air at different pressure levels.

5. System (1) according to one of the preceding claims, characterized in that one gas compressor unit (23) which operates according to the dynamic compressor principle is provided, and in that one gas compressor unit which operates according to the positive displacement principle is provided.

6. System (1) according to one of the preceding claims, characterized in that the gas compressor unit (23) is designed to supply a pressure level which is below a pressure level that is 0.3 bar above an initial pressure, or which is below a pressure level that is 0.2 bar above an initial pressure, or which is below a pressure level that is 0.1 bar above an initial pressure, wherein the gas compressor unit operates according to the positive displacement principle.

7. System (1) according to one of the preceding claims, characterized in that the gas compressor unit is adapted to supply a system component arranged downstream of the gas compressor unit with a maximum system pressure level.

8. System (1) according to one of the preceding claims, characterized in that the gas compressor unit is adapted to supply a system component arranged downstream of the gas compressor unit with a maximum system pressure level, wherein the pressure level can be adapted in a dynamically flexible manner during operation.

9. System (1) according to one of the preceding Claims 1 and 3 to 8, characterized in that the feed device (2) has a gas compressor unit.

10. System (1) according to one of the preceding Claims 1 and 3 to 9, characterized in that the processing device (3) has a gas compressor unit.

11. System (1) according to one of the preceding claims, characterized in that the gas compressor unit (23) has an electric drive.

12. System (1) according to one of the preceding claims, characterized in that the gas compressor unit has a mechanical drive.