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[0001] 1. Field of the Invention.
[0002] The invention relates to a reloading device for stacks of sheets of paper, plastic material, or the like, comprising at least one receptacle for the stack that rests on at least one support. The invention further relates to a method for operating such a reloading device wherein sheets are removed from the bottom end of the stack and sheets are placed on top of the stack.
[0003] 2. Description of the Related Art.
[0004] It is known in connection with feeding devices for folding devices, collecting devices, and the like to arrange a paper stack in a receptacle and to remove single sheets successively from the bottom end of the stack. The paper stack can have only a minimal height because the pressure on the bottom sheet becomes higher with increasing height of the stack. It is then difficult to properly remove the bottom sheet from the stack.
[0005] It is also known to fan or spread the sheets of a stack and to then place the sheets onto the transport device. However, this requires a long reload path.
[0006] It is also known to position the individual sheets at a slant and to reload them individually by means of a transport belt successively to the chute of a feeder.
[0007] It is an object of the present invention to configure the reloading device of the aforementioned kind and the method of the aforementioned kind such that the sheets of the stack can be removed reliably and without problems.
[0008] In accordance with the present invention, this is achieved in connection with the device of the aforementioned kind in that in the lower area of the receptacle at least one peeling device is arranged which is movable transversely to the stack and peels at least one sheet from the lower end (bottom end) of the stack. In accordance with the present invention this is achieved in connection with the method of the aforementioned kind in that from the bottom end of the stack sheets are peeled off.
[0009] According to the present invention, the sheet at the lower end (bottom end) of the stack is removed by means of a peeling device which can be guided transversely to the vertical extension of the stack through the lower stack end. The peeling device can be adjusted such that only one sheet is removed from the lower end of the stack. However, it is advantageous to remove several sheets from the lower end of the stack. The peeled-off portion of the stack then drops, for example, into the chute of a feeder arranged underneath the peeling device, and the sheets are then individually and sequentially supplied by the feeder in a way known in the art to further processing devices.
[0010] Advantageously, the load which is exerted by the stack is transmitted from the support onto stationary parts so that the peeling device is not loaded by the stack. Accordingly, the stack can be very tall without the peeling process being negatively affected. In particular, in the reloading device according to the invention new sheets can be placed onto the stack during the peeling process. Since in connection with the device according to the invention and in connection with the method according to the invention at least the lowermost sheet of the stack is removed by means of the peeling device moving transversely to the vertical direction of the stack, the sheets can be supplied reliably to the unit arranged downstream, which is preferably a feeder.
[0011]
[0012]
[0013]
[0014]
[0015] The reloading device, used, for example, in connection with feeders, has a paper receptacle
[0016] The paper stack
[0017] The support
[0018] A peeling device in the form of a peeling blade
[0019] As illustrated in
[0020] In order for the peeling blade
[0021] In order to peel off the sheets
[0022] At the beginning of the peeling process, the compressed air is blown through the air nozzle
[0023] The beveled edge of the peeling blade
[0024] However, it is also possible to peel off sheets
[0025] The number of sheets that can be removed from the lower end of the paper stack
[0026] During peeling, the paper stack
[0027] Since the forward edge
[0028] Since the sheets
[0029] In the described way, it is also possible to stack large size sheets and to remove large size sheets at the lower end of the stack by peeling. In the case of such large size sheets, a simple reloading is possible even during the peeling process. It is advantageous to automatically reload the sheets in small stack units of, for example, 50 to 100 sheets from above so that in the receptacle chute
[0030] At least the topside of the peeling blade
[0031] The support
[0032] While specific embodiments of the invention have been shown and described in detail to illustrate the inventive principles, it will be understood that the invention may be embodied otherwise without departing from such principles.