FR2811655A1 - DEVICE FOR GROUPING FOLDED PRODUCTS FOR DOUBLE QUART PAGE FOLDING ON PRINTING MACHINES - Google Patents

Abstract

The present invention relates to a device for grouping together two folded products in a reel (10), device in which the folded products travel, before the grouping, separate paths of lengths agreed on one another, for precise access to insertion points (x1, X2) on the reel (10). According to the invention, for the adjustment of the precise access in time to an insertion point (X1), the interval (Z) between the extr emit e of end of the path (BB) and the point insertion point (X1 ) can be changed approximately in a straight line and/or tape speeds on the paths (BA , BB , BC , BD ) are variable by setting, and the insertion points (X1 , X2 ) are arranged are in an upper half of the reel (10).

Description

The present invention relates to a device for grouping products

  folded in a reel, device in which the folded products travel, before regrouping, separate paths of lengths tuned one on the other, for precise access to points of insertion on the reel. In folding machines which are equipped with two folding groups each executing a quarter page fold, it is known to send the respective folded products in a common reel. To successfully send these folded products into the common reel in such a way that 1o interference between them can be excluded, the respective folded products must arrive at different times in said common reel and, moreover, a given product said folded products must have disappeared inside

  a reel socket some time before the next product.

  The different instants at which the respective folded products are sent to the reel are obtained by adequate mutual agreement of the lengths of the individual paths that each of the folded products

must travel to the reel.

  To exclude any mutual interference between the folded products when they are inserted into the common reel, it is known to increase the angle

between the two journeys.

  The insertion point of a folded product can certainly, for the delivery operation, be moved at will towards the exit, but there is then only for the other folded product the possibility of to be

  inserted approximately horizontally, or even slightly from below.

  This possibility, however, stands in the way of a compact construction of a

  device for grouping folded products.

  The present invention has set itself the aim of remedying this drawback by proposing a device for grouping folded products coming from two folding groups, each performing a quarter-page fold, which is produced in a compact construction while allowing

  precise grouping of folded products in a common reel.

  To do this, the subject of the present invention is a device for grouping products folded in a common reel, of the type mentioned in the introduction, in which, for adjusting the precise access of each of the products folded in time at a point insertion, the interval between

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  the end of the path end of a given folded product and the insertion point can be changed approximately in a straight line and / or tape speeds on the paths are variable by setting, and the insertion points are

  arranged in an upper half of the reel.

  Advantageously ,. an adjustment of the interval, roughly rectilinear, is done by means of a pivoting of the path around a point, which is preferably carried out using a position adjustment means, in particular of a

position adjustment screw.

  According to one embodiment of the invention, the path traveled by the folded product from a folding group to the insertion point

  corresponding, is established in at least two sections.

  The device for grouping folded products according to the invention, as described above, has a compact structure, the arrangement of the insertion points on the reel can then be independent of an angle which ensures an absence of interference between a first folded product, from a higher folding group, and the second

  folded product, from a lower folding group.

  The present invention also relates to a device for grouping two products folded in a reel, of the type mentioned in the introduction, in which the arrangement of the points of insertion of the products folded on the reel can be independent of an angle which ensures an absence of interference between a first folded product from a higher folding group and the second folded product from a lower folding group. In this device, the absence of interference between the folded products being obtained using different insertion speeds of the folded products

at the insertion points.

  Advantageously, the first folded product, coming from the upper folding group, can be advanced at a higher insertion speed, compared to the second folded product coming from the following lower and advanced folding group.

its insertion speed.

  Preferably, the insertion speed of the first folded product is increased by 10 to 15% compared to the insertion speed of the second

folded product.

  According to an embodiment of the present invention, an adjustment of the tape speeds or of the insertion speeds is carried out by means of

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  driving rollers of variable diameter and / or by means of transmission mechanisms. As a variant, the adjustment of the belt speeds or of the speeds

  insertion takes place by means of individual drive devices.

  Preferably, all the mechanical drive devices used in the context of the present invention are individual drive devices. An important advantage provided by the present invention is that it makes it possible to group folded products in a reel of relatively small size 10, the angle between the planes or the insertion points not having to be necessarily chosen. according to the criterion of the absence of mutual interference between the folded products, and space is thus gained in the overall construction, which means that a construction

  compact device is possible.

  The present invention will now be described in more detail on the basis of nonlimiting examples, with reference to the accompanying drawings, in which FIG. 1 schematically represents a folder comprising an upper folding group and a lower folding group, FIG. 2 shows schematically an embodiment of the folder of Figure 1, and Figure 3 shows schematically the folder of Figure 2, in

  which stage II has been raised.

  Figure 1 shows a folder 1, which consists of an upper folding group 2 performing a quarter page fold, hereinafter referred to as DFO, and a lower folding group 3 performing a quarter page fold, ci -after

designated by DFU.

  The upper folding group 2 consists of a folding cylinder 4 and folding rollers 5, 6. The lower folding group 3 consists of a folding cylinder 7 and folding rollers 8, 9. Folded products, from both DFO 2 and DFU 3, are sent to a common reel 10 associated with DFU 3. The folded products coming from DFO 2 arrive, on a path presented in the configuration of a BA strip driving system, BB, Bc, at an insertion point XI in the reel 10. The folded products coming from the DFU 3 reach, via a

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  BD tape drive system at an insertion point X2 in the reel 10. The tape drive systems Bc and BD or the insertion points Xl and X2 are positioned, relative to each other, at an angle oc which need not necessarily be chosen according to a criterion of absence of mutual interference between the folded products. The tape drive system BB and the tape drive system Bc are mounted separated by an interval Z. As a variant, the tape drive system BB could be arranged at the interval Z relative to the insertion point XI, in which case the strip driving system

Bc would then be deleted.

  FIG. 2 shows an embodiment of the folder 1 of FIG. 1. The strip driving system BB is put in place in a reel module 11 pivotally mounted around a point A. The reel module 11 is built in two elements, a first element 12, called stage I, being pivotally mounted around point A and the second element 13, called stage II, being connected to stage I 12, pivoting around point B. The pivoting of the reel module 11 around point A is made on a pivot radius RI. Stage II 13 of the reel module 11 can, as shown in FIG. 3, be brought, by pivoting around point B, in a position W, for example for carrying out maintenance work. On the stage II 13 of the reel module 11, a reel 14 and a switching element 15, not shown in a specific manner, are arranged, as well as a BE strip driving system. The reel 10 and the reel 14 are associated with delivery means 16, 17, for example delivery strips. Between the stage I 12 and the folder 1, is arranged a position adjustment means 18, for example a position adjustment screw. The pivoting of the reel module 11 around the point A, along the pivoting radius Rj, can be carried out using this means

position adjustment 18.

  The radius R1 is in a range between at least 1000 mm and at most 1600 mm. The optimal radius R1 is approximately

1,588 mm.

  The diameter of the reel 10 is in a range between at least 400 mm and at most 500 mm. The optimal diameter of the reel 10

is approximately 430 mm.

  The DFO 2 and the DFU 3 can be driven by means of respective individual drive devices not shown in particular, the tape drive systems BA, BB, Bc, BE, associated with DFO 2, being then driven by the device d individual drive of DFO 2 and the BD tape drive system, associated with DFU 3, being driven by the

  individual DFU training device 3.

  Alternatively, all BA, BB, Bc, BD, BE belt drive systems can be driven by means of drive devices

  respective individuals, not shown in particular.

  The BA, BB, Bc, BD, BE belt drive systems are set in motion, by means of the drive devices described above, at respective belt speeds VA, VB, VC, VD, VE associated with the systems. of

strip driving.

  By means of the switching element 15 between the reel 14 and the reel 10, switching is made possible between the strip pipe systems Bc and BE. It is thus possible that not only the folded products from DFO 2 and DFU 3 are grouped in the reel 10, but also that the folded products from DFO 2 are shipped in the reel 14 and that the folded products from DFU 3 are sent to the reel 10, that is to say that a production on two outlets such as the delivery means 16, 17 can be done using the

folder 1.

  When the folded products from both DFO 2 and DFU 3 are called to be grouped in a reel, each folded product occupying in this case, during the grouping, a cell which is specific to it in one of the reels, then the folded product from DFO 2 must be at an instant th at insertion point X1 and the folded product from DFU 3 must be at

  an instant t2 at the insertion point X2 of the common reel 10.

  The folded product from DFO 2 must have completely disappeared inside a cell, not shown in particular, of the reel 10, before the insertion of the folded product from DFU 3 into another cell begins, in order to to exclude mutual interference between products

  folded when inserted into the reel 10.

  A significant advantage is that by means of individual drive devices and / or adjustable drive devices

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  (variable speed gear or planetary gear) and / or also with fixed multiplication ratios, it is possible to match the belt speeds VA, VB, VC, VD, VE of the BA, BB belt drive systems , Bc, BD, BE, so that the folded products arrive at the desired time and at the required insertion speed, at the desired location. In this way, with already small variations in speed, one obtains, for example for large lengths of BB, Bc, variations of

sufficiently large courses.

  The folded product from DFO 2 is shipped to reel 10 at an insertion speed V ", and the folded product from DFU 3 is shipped to reel 10 at insertion speed V2. A significant advantage is the fact that by means of the individual drive devices, a modification or adjustment of the belt speed VB, Vc of the belt drive systems BB and / or Bc or of the insertion speed V1 resulting from the speed of band VB, Vc, with respect to the band speed VD in the strip management system BD or the insertion speed V2 resulting from the band speed VD, is possible so that the insertion points X1, X2

  are reached at the precise instant tl, t2 which is appropriate.

  It is important that the folded product coming from DFO 2, by a slight increase in its insertion speed VI, for example from 10% to 15%, compared to the insertion speed V2 of the folded product coming from DFU 3, safely reaches the bottom of the reel's socket before insertion of the folded product from DFU 3 begins. In this way, it is also possible to sometimes make the construction of the device compact, since it is no longer only the length of the path of the tape conduction systems and / or the enlargement of the angle a between the points of insertion which help to exclude any mutual interference between the folded products during their

insertion into the common reel.

  Since the transport of folded products is presented as an operation with a certain amount of slippage, the sum of the path lengths of the strip pipe systems BA, BB, Bc must be able to be

  modified from BD system.

  This adjustment of the path lengths is obtained by a pivoting around the point A, on the radius Rj, of the strip driving system BB, integrated in the reel module 11. Thanks to the pivoting on this large radius Ri, the differences vis- with respect to a straight line are weak and the pivoting corresponds approximately to a translation, which means that the interval Z is adjusted in a practically rectilinear or linear displacement. To reduce possible lubrication phenomena, large radii of strip pipe systems have been sought and are

  reproduced by means of a multitude of small individual trees (19).

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Claims (17)

  1. Device for grouping folded products in a reel (10), device in which the folded products travel, before grouping, separate paths of lengths tuned one on the other, for precise access for each products folded at insertion points (Xl, X2) on the reel (10), characterized in that for adjusting the precise access of a product folded over time to an insertion point (Xl) , the interval (Z) between the end of its path (BB) and the insertion point (Xl) can be modified approximately in a straight line and / or tape speeds (VA, VB, VC, VD) on the paths (BA, BB, Bc, BD) are variable by setting, and the insertion points (X1, X2) are arranged in an upper half of the reel (10).   2. Device according to claim 1, characterized in that an adjustment of the interval (Z), approximately rectilinear, is done by means of a   pivoting of the path (BB) around a point (A).   3. Device according to claim 2, characterized in that the pivoting around the point (A) is done on a radius (RI) which is located in   a range between 1000 mm and 1600 mm.   4. Device according to any one of claims 1 to 3,   characterized in that the path (BB, Bc) traversed by the folded product from a folding group (2) up to the corresponding insertion point (X1), is established in at least two sections.   5. Device according to any one of claims l to 4,   characterized in that the products can be grouped together in a reel (10) whose diameter lies in a range between 400 mm and 500 mm.   6. Device according to any one of claims. l to 5,   characterized in that it has a compact structure, the arrangement of the insertion points (X1, X2) on the reel (10) being independent of a 9 2811655   angle (a) which ensures that there is no interference between a first folded product, coming from an upper folding group (2), and the second folded product, coming from   a lower folding group (3).   7. Device according to any one of claims 1 to 6,   characterized in that an adjustment of the belt speeds (VA, VB, VC, VD, VE) is carried out by means of driving rollers of variable diameter and / or at   means of transmission mechanisms.   8. Device according to any one of claims 1 to 6,   characterized in that an adjustment of the belt speeds (VA, VB, VC, VD, VE)   is carried out by means of individual training devices.   9. Device according to any one of claims 1 to 8,   characterized in that all mechanical drive devices are   individual training devices.   10. Device according to any one of claims 1 to 9,   characterized in that the pivoting is effected by means position adjustment (18).   11. Device according to any one of claims 1 to 10,   characterized in that the position adjusting means (18) is a screw position adjustment.   12. Device for grouping two folded products in a reel (10), device in which the folded products travel, before the grouping, separate paths of lengths tuned one on the other, for precise access for each products folded at insertion points (XI, X2) on the reel (10), the arrangement of the insertion points (X1, X2) on the reel (10) being independent of an angle (ca) which ensures an absence of interference between a first folded product, coming from an upper folding group (2), and the second folded product, coming from a lower folding group (3), characterized in that the absence of interference between products 2811655   folded is obtained using different insertion speeds (V1, V2) of the   products folded at the insertion points (X1, X2).   13. Device according to claim 12, characterized in that the first folded product, from the upper folding group (2), is advanced at a higher insertion speed (VI), compared to the second folded product from the group lower folding (3), advanced according to its insertion speed (V2). 14. Device according to claim 13, characterized in that the insertion speed (VI) of the first folded product is increased by 10 to 15%   relative to the insertion speed (V2) of the second folded product.   15. Device according to any one of claims 12 to 14,   characterized in that the insertion speeds (VA, VB) are adjusted by means of variable diameter driving rollers and / or by means of transmission mechanisms.   16. Device according to any one of claims 12 to 14,   characterized in that an adjustment of the insertion speeds (VA, VB,) takes place   by means of individual training devices.   17. Device according to any one of claims 12 to 16,   characterized in that all mechanical drive devices are   individual training devices.