Sheet feeding or delivering – Delivering – Multiple discharge
Patent
1997-01-14
1999-04-20
Skaggs, H. Grant
Sheet feeding or delivering
Delivering
Multiple discharge
271295, 271225, 271184, 198457, 1987353, B65H 3910
Patent
active
058950435
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention concerns a device for feeding a conveying apparatus, having hoppers for flat products such as envelopes, mailing pouches, workpieces or the like, which can be emptied and are secured at intervals on a rotatably driven traction element.
Such a device is disclosed in EP-A-0'638'501. There, the flat products on a conveyor belt are fed individually to a hopper that is in the opened position (see in particular FIG. 9).
SUMMARY OF THE INVENTION
It is an object of the invention to create a device of the aforementioned type, which permits a reliable feeding of the hoppers with flat products of a differing thickness, format and surface.
The solution according to the invention is that a conveying channel is arranged above the conveying apparatus, which is connected to it at a product transfer point such that it conveys, has an intake opening and is formed by a stationary clearing device that is operated jointly with and fits laterally inside the conveying channel. With the device according to the invention, the products can be transported gently as well as timed.
In addition, the device according to the invention permits an approach almost without spacing to the conveying apparatus, so that the products remain in guiding contact even at the point of transfer.
BRIEF DESCRIPTION OF THE DRAWINGS
Further advantages result from the following description and the drawing, which impart an exemplary embodiment of the invention. Shown are:
FIG. 2 A partial cross section through the embodiment according to line II--II, FIG. 1.
DETAILED DESCRIPTION OF THE INVENTION
In accordance with FIGS. 1 and 2, the device 1 is attached to a frame 2 and serves to feed a conveying apparatus 3, of which the feed opening for hoppers 5 can be seen in FIG. 1. Arrow F corresponds to the conveying direction for the hoppers 5, which are secured to a rotatably driven traction element (not visible). A product 6 shown with dash-dot line, for example a mailing pouch, has just been fed into the hopper 5. A following product 6 is located in the conveying channel 7 of the apparatus 1, to which it has been supplied in accordance with arrow Z in FIG. 2 or perpendicular to the drawing plane in FIG. 1.
The conveying apparatus 3 and the conveying end 8 of the device 1 form a point of transfer 9, at which the products 6 are guided onto the path toward the hoppers 5.
The conveying channel 7 is composed of a stationary guide wall 10 that is attached to the frame 2 and a clearing device 11, installed laterally in the conveying channel 7 and operated jointly with it. In accordance with the drawing, this device comprises two parallel installed, endlessly circulating traction means or drive belts 12. In order to limit the conveying channel 7 with respect to height, a guide element 14 is provided behind the drive belts 12 and opposite the guide wall 10, which is connected to the frame 2 and is arranged in conveying direction between the deflection rollers 13 of drive belts 12, which has the effect of guiding or rejecting the products 6 directly beside the rear portion of the upper/lower end reaches 15 of drive belts 12 that face the conveying channel 7. The conveying channel 7 is limited on the side by means of buffer 16--which could be composed of an impact-absorbing material--located opposite the side intake opening 4 for conveying channel 7. This buffer 16 could also be formed by a driving belt for the clearing device 11 if this drive belt would rotate around axes that are positioned at a right angle to the stationary guide wall 10. The conveying channel 7 extends or is positioned to be approximately aligned with the feeding direction for the hoppers of the conveying apparatus 3, so that an uninterrupted transfer of the products 6 can take place. It means that the conveying direction of the conveying channel 7 is designed to slant downward owing to the fact that at the point of transfer 9, the position of hoppers 5 of the conveying apparatus 3 is slanted toward the back with respect to the drive direction. As a res
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Maier Wilhelm
Oppliger Jean-Claude
Grapha-Holding AG
Kinberg Robert
Skaggs H. Grant
Spencer George
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