Conveyors: power-driven – Conveyor system for arranging or rearranging stream of items – By queueing items from quantity source of items into stream...
Patent
1998-10-29
2000-12-12
Olszewski, Robert P.
Conveyors: power-driven
Conveyor system for arranging or rearranging stream of items
By queueing items from quantity source of items into stream...
B65G 2900
Patent
active
06158570&
DESCRIPTION:
BRIEF SUMMARY
The preambles to claims 1 and 2 of CH-PS 641 416 describe a method and apparatus for transporting and grouping biscuits. The biscuits are delivered in a plurality of columns and transferred to carriers of a conveyor wheel. The carriers can pivot on the wheel. They push the biscuits through guides in an output station, in which groups of flat-sided biscuits resting against each other are formed on further guides, the biscuits being transported further by means of a slide that is moved periodically. The sliding of the biscuits in the guides causes abrasion. A similar apparatus is described in CH-PS 664 126.
It is the object of the present invention to provide a method and an apparatus of this type, in which the relative movements between the products and guides is minimized, so the products are handled carefully. This object is accomplished by the combination of features in the claims.
Embodiments of the invention are described below in conjunction with the drawings. Shown are in:
FIGS. 1 and 2 a schematic side view and a plan view, respectively, of the apparatus,
FIGS. 3 and 4 a representation of a variation that is slightly more detailed in comparison to FIGS. 1 and 2, respectively,
FIG. 5 a representation of a further variation corresponding to FIG. 3, and
FIG. 6 one half of an axial section through the conveyor wheel.
In the embodiment according to FIGS. 1 and 2, four columns 11 of discoid products 12 are delivered at regular intervals by, for example, slides 13. In an input station 14, they are transferred to a transport wheel 15. In the input station 14, the four adjacent tracks of the conveyor 10 are disposed at different heights. As the products 12 are transported in the wheel 15 to the output station 16, they are pushed together, forming a single output column 17. In the output station 16, groups 18 of flat-sided, adjacent products 12 are formed, which are supplied with slides 19 and counterholders 20 to a packaging machine 21. The groups 18 are packaged in the machine 21. The finished packages 22 are transported away on a conveyor 23.
In the variation according to FIGS. 3 and 4, two output columns 17 are formed from four input columns 11. Carriers 26, 27, which are uniformly distributed over the circumference at the periphery of the wheel 15, are secured to pivot about pivoting shafts 28, 29. The carriers 26, 27 have radial slots 30 that are open toward the outside (FIG. 6). In the output station 16, a guide sheet 31, which supports the lower edge of the products 12, extends into these slots 30. The carriers 26, 27 are oriented radially in the input station 14, and are pivoted back toward the output station 16, so they are oriented approximately perpendicular to the sheet 31 there, which slopes upward at a flat angle of about 15.degree.. As the wheel 15 rotates further, the carriers are withdrawn between adjacent products 12 of the forming groups 18, and are subsequently radially oriented again. The two outermost carrier columns are offset with respect to the two center columns by the spacing of the carriers 26, 27. The two center supply tracks 32 of the supply conveyor 10 are also offset by this amount with respect to the two outer tracks 33. The outermost carriers 27 on the wheel 15 are laterally displaceable. During the transport movement from the station 14 to the station 16, they are displaced into the plane of circulation of the other carriers 26, so groups 18 of products 12 are formed from two adjacent input columns 11 in the output station 16.
From the output station 16, the groups 18 are first pushed out by a slide 36, which is disposed virtually perpendicular to the sheet 31; the face end 37 of this slide circulates in a circulation track 38 such that, after a predetermined number of products 12 in the forming group 18, it dips into the slot 30 of the relevant carrier 26, 27 and, simultaneously, is advanced synchronously with the circulating speed of the carriers 26, 27 in the direction of the sheet 31 in the station 16. The course of the movement and the means for moving the slide 36 can
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patent: 3084783 (1963-04-01), Etal
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patent: 4562916 (1986-01-01), Filter
patent: 5035315 (1991-07-01), Fukusaki et al.
Strasser Thomas
Walz Theo
Jaketic Bryan
Olszewski Robert P.
SIG Pack Systems AG
Spencer George H.
Wells Ashley J.
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