Abstract:
In the area of manufacturing covers with tear-open foils, the cover blanks, or covers are always secured against an undesired take-off from the transport means during the transport and the processing. This allows a very high manufacturing cadence equally for light covers and particularly for aluminium covers.
Abstract:
An arrangement including a welding arm (2) for a resistance seam welding machine and a roller head (1) fastened thereon, which has a stator (3) and an electrode roller (4) which is supported as a rotor on the stator (3) in a rotatable way, wherein the stator (3) protrudes over the electrode roller (4) with fastening extensions (5) on both sides of the electrode roller (4). The welding arm (2) has a reception opening (6) for the roller head (1), which is formed between two limiting walls (7) facing each other, which themselves have fastening reception openings (8) for the fastening extensions (5). The roller head (1) is arranged inside the reception opening (6) in such a way that the electrode roller (4) protrudes outside the reception opening (6) with a part of its circumferential boundary and the fastening extensions (5) are arranged inside the fastening reception openings (8). The roller head (1) is fastened to the welding arm (2) by pressing each of the fastening extensions (5) of the stator (3) with an even contact surface (9) formed thereon to a attributed even contact surface (10, 19) inside the boundaries of the respective fastening reception opening (8), wherein each of the fastening extensions (5) of the stator (3) is pressed with a clamping piece (11) received in the respective fastening reception opening (8) with its contact surfaces (9) against the attributed contact surfaces (10, 19). It has been discovered that mounting errors may be avoided by the arrangement according to the invention and that a good and reliable sealing and current transmission can be reached.
Abstract:
An apparatus (1) for the production of tear-off lids (27), in which a tear-off film (24) is sealed or glued onto the upper side thereof on a sealing surface (18) arranged around a removal opening (17). The apparatus includes a conveying device (13) for lid blanks (9), lid rings (8), and tear-off lids (27), as well as processing stations (14, 19, 21, 25, 26, 29) which are provided in succession in the conveying direction for processing the lid blanks (9), lid rings (8), and tear-off lids (27) and form a processing zone of the apparatus (1) extending in the conveying direction. At least some of the processing stations (14, 19, 21, 25, 26, 29) have lifting tables (5) for receiving lower machining tools which, in the intended operation of the apparatus (1), execute an intermittent upward and downward movement along lifting table guides (6) and, in doing so, work with the lower machining tools from below against associated upper machining tools which are supported on stationary yokes (4). According to the disclosure, the lifting table guides (6) are arranged in an area adjacent to the processing zone of the apparatus, as seen in the conveying direction, on exactly one of the two sides of the processing zone. This leaves the area on the other side of the processing zone largely unobstructed and provides excellent accessibility to the processing zone for inspection purposes and maintenance work.
Abstract:
A tear-off lid with a curled edge of the removal opening is formed such that before the edge is curled, a plastics layer provided as a band of low thickness and preferably only 0.1 mm thickness is applied to the collar of the lid ring. In this way, a good seal of the cut edge of the tear-off lid is produced economically and with the possibility for production at a high rate.
Abstract:
A welding installation with a calibration tool is provided in a device for producing container shells. The force exerted by the container shells on the calibration tool is measured and evaluated as information for the overlapping width of the respective container shell. This allows adjusting the calibration tool during configuration of the device and allows the removal of container shells welded with too large or too small overlapping during production of container shells.
Abstract:
In a destacking device comprising a stacking magazine (2), the respective lowest sheet of a stack (1) of metal sheets is destacked by way of a suction element (5, 15). This element can be moved upward and downward by way of a drive (6). At the end of the upward movement, the respective lowest metal sheet (4) of the stack (1) is gripped by suction power and pulled from the stack. A second suction element (5′, 15′) is provided, which can be moved upward and downward by way of a drive (6′) and by way of which the lowest sheet (4) of the stack (1) can be gripped at the end of the upward movement. The second suction element is driven so as to be leading with respect to the first suction element, so that the respective lowest sheet (4) of the stack (1) can first be pulled from the stack by the second suction element (5′), and subsequently by the first suction element (5). In this way, it becomes possible to destack thin sheets having a thickness of only 0.12 mm and a square shape without disruption. The stack is held magnetically in the stacking magazine, which facilitates destacking.
Abstract:
In a package having a dosing spoon for removing a filling material from the package, a container of the package is sealed with a peel-off lid that has a peel-off lid ring and a peel-off film. A leveling bar is provided that may be attached to the edge of the peel-off lid ring after the peel-off film has been removed. The leveling bar may be present in the package especially in combination with the dosing spoon, so that after the package is opened the leveling bar may be detached from the dosing spoon and may be attached to the edge of the peel-off lid ring.
Abstract:
In a package having a dosing spoon for removing a filling material from the package, a container of the package is sealed with a peel-off lid that has a peel-off lid ring and a peel-off film. A leveling bar is provided that may be attached to the edge of the peel-off lid ring after the peel-off film has been removed. The leveling bar may be present in the package especially in combination with the dosing spoon, so that after the package is opened the leveling bar may be detached from the dosing spoon and may be attached to the edge of the peel-off lid ring.
Abstract:
For the determination of the welding current to be used for the resistance welding of the overlap seam of container bodies, welding with a test body is carried out with a changing strength of welding current which in the test body produces a varying welding of the seam. The current strength varies from welding of this seam with a too high temperature to welding with a too low temperature. Along with this the welding current strength used in the welding is determined so that it is further determined at which point of the seam the welding has been accomplished and with what strength of welding current. By means of a mechanical and/or optical investigation of the welded seam it can then be easily determined where the seam has been correctly welded for the series production of container bodies from the same sheet material as the test bodies. When such a point or such a region of the seam is known the welding current used in the test welding can be taken as the welding current for serial production.
Abstract:
A magnetic lifting device for bodies (Z) comprises an input transport device (10) for transporting lying bodies (4), a transport device (12) for transporting lifted bodies (9) hanging at the transport device (12) and arranged above the input transport device (10) and a control device (13). A first magnet arrangement (1) which is activated and deactivated by the control device (13) is arranged below the input transport device (10) in such a way that a body (4) lying on the input transport device (10) is magnetically held in a releasable way on the input transport device (10). A second magnet arrangement (2) is arranged above an area of the input transport device (10), in which the bodies are transported, and is formed in such a way that a body lying on the input transport device (10) is lifted by the magnetic field of the second magnet arrangement (10) when the magnetic field of the first magnet arrangement (1) is deactivated. A third magnet arrangement (3) is provided above the transport device (12) and is formed and arranged in such a way that a partially lifted body (4a) is lifted more and is lifted off the input transport device (10) and is transported in an upright position hanging magnetically at the transport device (12). The control device (13) is adapted to activate the first magnet arrangement (1) when a front edge of a body (4) lying on the input transport device (10) has passed the second magnet arrangement (2) and to deactivate the first magnet arrangement (1) when a trailing edge of this body (4) comes to lie below the second magnet arrangement (2).