FR2499532A1 - DEVICE FOR ADVANCING NOTEBOOKS OF UNLINKED SHEETS - Google Patents

Abstract

TRANSPORTATION DEVICE FOR ADVANCING, IN A QUICK STEP, NOTEBOOKS OF UNLINKED SHEETS 2A, 2B, 2C INCLUDING AN ENDLESS CONVEYOR 4A, 4B, 4C ADVANCING STEP BY STEP ON WHICH STOPS 8A, 8B, 8C ARE FIXED WITH THE DISTANCE MUTUAL CAN BE ADJUSTED TO CORRESPONDENCE WITH THE DIMENSIONS OF THE SHEET SHEETS SO AS TO KEEP THEM ON TWO OPPOSITE SIDES; THE CONVEYORS 4A, 4B, 4C ARE RESPECTIVELY CONSTITUTED BY THREE PARALLEL CONVEYOR ELEMENTS 6A, 6B, 6C ON WHICH THE STOPS 8A, 8B, 8C ARE FIXED AND WHICH CAN BE DRIVEN IN COMMON; A CONVEYOR ELEMENT 6B CAN BE SEPARATED FROM THE COMMON DRIVE AND BE MOVED, IN THE DIRECTION OF TRANSPORT OR IN THE REVERSE DIRECTION, WITH RESPECT TO THE TWO OTHER CONVEYOR ELEMENTS 6A, 6C.

Description

249953Z

  Device for advancing sheet notebooks

unbound, clocked.

  The invention relates to a device for trans-

  port for advancing paper sheet notebooks

  pier not connected, in a clocked fashion, on a transport track, comprising an endless conveyor which can be driven step by step on which are fixed stops projecting relative to the transport track and

  the mutual distance of which can be adjusted by correspond-

  dance with the respective dimensions of the sheet notebooks so that each notebook is guided by

  stops at the two opposite sides.

  In paper processing machines there is always the problem of transporting notebooks of sheets, unbound, in a clocked fashion. In the case of such clocked transport it appears naturally

  acceleration or deceleration respectively

  laterally large which would move the leaves in

  notebooks, if these were not maintained or tightened.

  To maintain notebooks during rhythmic transport

  for example, chain conveyors are used

  so many stops that can be undone from the chain

  and whose mutual distance can be adjusted by cor-

  redundancy with the respective dimensions of the notebooks.

  A transport device of this type is described for example in the German patent application published under No. 24 56 908. The disadvantage of these conveyors lies in the fact that the preparation, when changing format, takes a lot of time since the stops must be detached from the chain and be

again fixed.

  The invention proposes to arrange a transport device of the above type so as to be able to

  prepare it quickly when changing format.

  This problem is solved according to the invention thanks to the fact that the conveyor is constituted by at least three endless conveyor elements, guided in parallel, that on each conveyor element are fixedly mounted stops, that all the conveyor elements can be driven in common, and that a conveyor element can be moved in the direction of transport or in the direction

  opposite, compared to the other two conveyor elements.

  In the transport device according to the

  Please note that all the stops that must be moved when changing format can therefore be adjusted differently with just one move. In particular, in the case of machines with several tracks, in which therefore several transport devices are arranged one beside the other and can be driven in

  common, it is particularly advantageous that

  the conveyor belts of each transport device are

  respectively guided around two change rollers

  direction, the direction change rollers of the external conveyor elements being mounted, without being able to turn, on a first shaft on the one hand, and on the other hand a direction change roller of the central conveyor element being mounted, without ability to rotate, on a second shaft, and the two shafts being kinematically coupled and their angles of orientation

  can be adjusted in relation to each other. The re-

  setting the angles of orientation of the two shafts relative to each other makes it possible, in the case of machines with several tracks, to put all the transport devices at once in the desired format. In a way

  advantageous the other direction change rollers

  respective positions are mounted so that they can rotate on the shafts. Simple format adjustment is ensured by the fact that a drive element is securely attached

to be able to turn on a tree.

  The format change can be done with

  great sensitivity because the driving element

  lies on the tree. In a preferred embodiment, the conveyor elements are formed by toothed belts on which pins are fixed

as stops.

  The present invention will be better understood from

  using the following description of an embodiment

  preferred but nonlimiting tion shown in the accompanying drawing in which: FIG. 1 is a plan view of a transport device for advancing notebooks of sheets in a clocked fashion; and - Figure 2 is a side view of the transport device. A transport path 1 for three respective sheet notebooks 2A, 2B, 2C brought side by side is formed by sheets shown on the i sheets of endless conveyor sheets sliding sheets consisting of three elements appearing 6a, 6b, 6c which are direction of sliding direction 3 (which are not figure 1). To advance the 2A, 2B, 2C in a clocked fashion, three IA, 4B, 4C are arranged under the 3. Each conveyor 4A, 4B, 4C is

  endless elements guided parallel-

in the form of toothed belts

  guided around changers

7a ', 7a "; 7b', 7b"; and respective-

  7c ', 7c ". On each toothed belt 6a, 6b, 6c are rigidly mounted stops which are under

  the shape of lugs 8a; 8b and 8c respectively. The er-

  gots 8a, 8b and 8c have sufficient height to pass

  be between the sliding plates 3 so as to penetrate

  travel far enough in transport path 1 to extend the full height of the notebooks

2A, 2B, 2C.

  The change of direction rollers 7a ', 7c' of the conveyors 4A, 4B and respectively 4C are respectively mounted so as to be able to turn on a pad 9 ', the change of direction roller 7b' being respectively fixed without being able to turn on the pad 9 ', between the change of direction rollers 7a' and 7c '. Change rollers

  direction 7a "and 7c" of the conveyors 4A, 4B and respecti-

  4C are mounted without being able to turn on a sewn

  respectively 9 ", while between the change of direction rollers 7a" and 7c "the change of roll

  direction 7b "is respectively mounted so that

see turn on the 9 "bearing.

  The three bearings 9 'and the three bearings - 9 "are respectively mounted without being able to rotate on a shaft 11' or 11" respectively. The trees 11 'and

  11 "are mounted so that they can rotate in a

  machine ti 12 and are kinematically coupled by means of drive elements in the form of discs 13 'and 13 "and a toothed belt 14. The disc 13' is not fixed directly on the shaft 11 'but is clamped between two locking discs 16a, 16b presses against each other by means of screws (not shown) and mounted without being able to rotate on the shaft 11'. The transport device is coupled with a suitable drive mechanism, for example a stepping mechanism, via a wheel

  chain 17 attached to the shaft 11 "and a chain 18.

  To adapt the distances of the lugs 8b relative to the lugs 8a and 8c to the respective length

  2A, 2B, 2C sheet notebooks, just simple-

  loosen the screws of the locking discs 16a, 16b, after which by turning the shaft 11 'by

  compared to the 11 "shaft, via the cushions

  9 'nets and 7b' direction change rollers, z499532

  the toothed belt 6b is offset with respect to the

  toothed bands 6a and 6c, and therefore all the er-

  gots 8b are moved relative to the lugs 8a and 8c.

  Adjustment or format change is already complete once the screws of the locking discs 16a, 16b have

been tightened.

  As it goes without saying, and as it results from

  their already from the above, the invention is not limited

  in no way to those of its modes of application and implementation

  which have been more specifically contemplated; she

  on the contrary, embraces all its variants.

Claims (6)

  1. Transport device for advancing notebooks of unconnected sheets of paper, in a clocked fashion, on a transport track, comprising an endless conveyor which can be driven step by step on   which are fixed stops projecting relative to   port to the transport route and whose mutual distance-   can be adjusted in correspondence with the dimensions   respective sections of the sheet notebooks so that each notebook is guided by stops at the level   on two opposite sides, characterized in that the con-   voyeur 4A, 4B, 4C consists of at least three   endless conveyor elements (6a, 6b, 6c) parallel guided   Lely, that on each conveyor element are fixedly mounted stops (8a, 8b, 8c), that all the conveyor elements can be driven in common, and that a conveyor element (6b) can be moved in the direction of transport, or in the opposite direction, compared to   two other conveyor elements (6a, 6c).   2. Device according to claim 1, ca-   characterized in that the conveyor elements (6a, 6b, 6c) are respectively guided around two direction change rollers (7a ', 7a "; 7b', 7b"; 7c ', 7c "), only on the one hand the change of direction rollers (7a ", 7c") of the external conveyor elements (6a, 6c) are mounted without being able to turn on a first shaft   (11 ") and on the other hand a di change roller   rection (7b ') of the central conveyor element (6b) is mounted without being able to rotate on a second shaft (1i'),   and that the two shafts (11 ', 11 ") are coupled kinematically   and their angles of orientation can be   settled in relation to each other   3. Device according to claim 2, ca-   characterized in that the other respective change of direction rollers (7a ', 7c', 7b ") are mounted on 2499532t   the shafts (11 ', 11 ") so that they can rotate.   4. Device according to claim 2 or 3, characterized in that a drive element (13 ')   is mounted on a shaft (11 ') so that it can rotate.   5. Device according to claim 4, characterized in that the drive element (13 ') is wedged on the tree (11 ').   6. Device according to any one of the re-   vendications 1 to 5, characterized in that the conveyor elements are formed by toothed belts (6a, 6b, 6c) on which are fixed pins (8a, 8b, 8c) serving as stops.