FR2507962A1 - BENDER FOR ROTARY PRINTING MACHINE ON ROLLED PAPER - Google Patents

Abstract

A.BOLDING MACHINE CONSISTING OF A KNIFE CYLINDER 1, A SLOTTED AND COLLECTION CYLINDER 2, AND A FOLDING FLAP CYLINDER, WITH CUTTING BLADES COOPERATING WITH RULES 18 PROVIDED WITH MARGING NEEDLES 17. B. CHARACTERIZED IN THAT THE CUTTING RULES 11 OF THE GROOVED CYLINDER 2 CAN BE REPLACED BY KNIVES 19 AND THE MARGIN NEEDLES 17 BE TAKEN OUT OF SERVICE, A MARGIN CYLINDER 4 IS ASSOCIATED WITH THE KNIFE CYLINDER 1, WITH MARGIN NEEDLES, FOR ANOTHER KIND FOLDING. C. MULTI-PURPOSE FOLDER FOR PARALLEL OR CROSS-PLY FOLDING.

Description

The invention relates to a folding apparatus for rotating machines with

  print on paper in rolls for the

  manufacturing products with parallel folds and folds.

  DE-AS 2,640,110, discloses a folding apparatus for bending optionally in length, or lengthwise and crosswise. The products folded lengthwise and crosswise are manufactured in a known manner by the passage of a strip. lengthwise folded in a group of cylinders constitutes a cutting cylinder, a combined cylinder, groove, folding blade and collecting, and a folding cylinder These products are stacked by a paddle wheel having a lifter placed after the cylinder

folding.

  For the manufacture of products with only parallel folds, it is necessary to have on the cutting cylinder, centrally, between two cutting blades, another cutting blade provided with pricking needles or claws. In addition, it will be necessary to replace on the collecting cylinder , the folding blade by cutting grooves, or we must meter the folding blades out of operation-in the case where they are dred N common with each a rip ji-pe In addition, we It will be necessary to install a row of feeders or claws on the folding cylinder, centrally adjacent to the folding flaps, and to move the delivery point of the row of feeders or feeders from the collecting cylinder to the plane passing through the axes of the collecting and folding cylinders The lengthwise folded products shall be stacked alternately on the folding blade's vane wheel and on another vane wheel provided with a take-up lever, which is arranged

  under the collecting and cutting cylinders.

  In this folder, gold meets this disadvantage that the transition to other productions takes a lot of time due to the work of changes and adjustments mentioned and requires extended machine downtime Sn further, when we set the distribution of rows imponderance or claws, there is a risk that faulty adjustments may occur if safety devices are not available Eu: them Precision defects in rows of needle feeders or grids cause insecurity In the operation of the folding machine Fn cutrie, product guards are insecure because the rows of needles forming the feeders of the cylinder 4 'cut are combined with the cutting blades.

-2507962

  blades lift the edge of the sheet, so that if the cylinder rotates at high speed, the product can be removed from the feeder needle by a thrust of air Another disadvantage is that the folded products are delivered by two paddle wheels, so that it is necessary to provide more staff than if the product was deposited at one point only Finally, in the folder a drive mounted in an oil-proof housing for a cylinder pinning can only be planned for another production with an expense

important technique.

  DE 2,517,000 discloses a folder for lengthwise folded products or long and cross-folded products. Cross-fold products are manufactured in this known art from a web using a web roll. The products are deposited by a vane wheel on a conveyor belt, or are delivered by the folding vane cylinder by means of Conveyor belts, with a bending device For the production of parts which are bent in length only, a collecting and cutting cylinder is provided below the folding blade cylinder, which carries three cutter blades provided each time. In addition, if the cutting blade is removed from the cutting cylinder, the folding blades of the folding blade cylinder are replaced by cutting grooves, or the folding blades. of the latter provided with cutting operations are disabled and on the cylinder with folding flaps, it stops them and sets up rows of needles to marge Regarding the latter, the point of delivery of the rows of needles marger is changed The lengthwise folded products are collected and conveyed by the conveyor belts to the longitudinal folding device. In addition, it is possible to deposit the unassembled lengthwise folded products coming from the cutting and collecting cylinder on a take-up device. For this purpose it is also necessary to put the rows of needles to work out of order, in addition to the changes made to the

  cylinder with cutting and folding blades.

  This folder is affected, as is the one described above, the disadvantage that the transition to another production requires a lot of time It must also be emphasized that in this folder, the guiding of products is little str due to the combination of rows of needles to be pruned with the cutting blades There may also be disturbances of operation on imprecision of the setting of the control of the margin, provided that this defect is not excluded with expensive safety devices Other On the other hand, if the folder is equipped with devices for a second transverse fold, the folding shutter cylinder is so tightly loaded by systems that sufficient stability for

  Reliable work is in question if speeds are high.

  Finally, the clutter no longer makes it possible to have, for another production, a broaching cylinder whose training

  would be locked in an oil-tight housing.

  The subject of the invention is the manufacture, with

  a folding machine offering a great security of operation, demand.

  little staff and low downtime of the machine, also 1 of products folded in length as of products folded lengthwise and crosswise Furthermore, it must be possible, in a production deriving from the previous one, to operate economically

a broaching cylinder.

  The invention proposes to modify a folding machine for rotary printing on paper rolls comprising a knife cylinder, a grooved cylinder and collection, and a folding shutter cylinder, in which the knife cylinder carries one or more cutting blades arranged at equal distances on the circumference, which co-operate with cutting strips placed equidistantly on the circumference of the grooved and collecting cylinder, and each provided with a row of needles for grooved cylinder and collecting on its central circumference between the cutting strips, each time, a folding blade, which cooperates with each time one of the multiple folding flaps arranged equal distances around the periphery of the folding shutter cylinder, a pallet wheel being arranged, for the delivery of products and a belt take-up device, after the folding shutter cylinder, so that with this folder, we can manufacture products folded in length as well as in folds crossed This folder must be distinguished by a good stability, must guide the products in a regular and constant way, and always drop them in a single point of delivery The change of the operation of the folder must be able to take place in a fast and simple way, with a small number of elements of construction to be changed In addition, the folder must allow the commissioning of a pinning cylinder for a different production, guaranteeing the housing of the gears driving the cylinder

in an oil-tight housing.

  For this purpose the folder according to the invention -is characterized in that the cutting rulers of the grooved cylinder and collection, can be replaced by knives and rows of needles to marger can be put at will enservice, the cylinder with knives bearing on its circumference, vis-à-vis the knives, or centrally between these knives, each time a cutting strip provided with a row of needles to marger that can be put into service at will, and can rotate relative to its drive on the included angle between a knife and an adjacent cutting ruler, while to this cylinder, is associated a feeder and collector cylinder which carries on its circumference cutting strips each provided with a row of pruning needles and an extractor, the distance of which is equal to that of a knife relative to an adjacent cutting ruler on the circumference of this knife cylinder and whose number diff one unit in relation to the sum of the cutters plus the knives of the cutter cylinder and is however at least three, another paddlewheel with a belt take-up being placed after the feed roller

and collector.

  As a result, the folding machine can be easily adapted to another production. In order to move to the production of only parallel folded products, it is only necessary to replace the cutting blades of the groove and collection cylinder with knives. , turn off the rows of needles, and turn the knife cylinder 900 from its workout Work can be done quickly and require only short downtime There is need no adjustment work whose quality of execution

  could affect the good quality of the work of the folder.

  The folding shutter cylinder can be stably produced even in the presence of devices for a second transverse fold, and operates in a sare way even at high speed. The rows of needles are not combined with the door The products will always be lifted by a single vane wheel so that the need for service personnel is low. Finally, the arrangement in the space of the feeder and collector cylinder and the paddle wheel makes it possible to provide, on the grooved and collecting cylinder, the driveway placed in an oil-tight housing of a cylinder of broaching

intended for another production.

  The transformation for another production with a broaching cylinder can be carried out rapidly if, according to the invention, it is possible to remove, from the frame of the folder, the feeder and collector cylinder, releasing the coupling which connects this cylinder with its drive spigot. , in common with the other vane wheel and the belt lifter, or by removing from the frame of the apparatus, the other vane wheel, by separating its driving junction with this cylinder, including the take-up lever. belt. The invention will be better understood with regard to the

  description hereafter and the attached drawings, representing a

  embodiment of the invention, drawings in which: FIG. 1 is a diagrammatic side elevational view of the folder, FIG. 2 shows a cross-fold product, FIG. 3 shows a product with parallel folds, FIG. Figure 5 corresponding to Figure 4, not being movable, is a view Z of Figure 1, shows a fold, in a view the cylinder merger and collector Figure 6 is a street bailer AA

of Figure 1.

  The folder according to the invention contains, mounted one after the other, a knife cylinder, a groove and collecting cylinder 2, a cylinder with folding rollers 3, and a feeder and collector cylinder 4. I is on the knife cylinder I To receive the sheets, after the folding shutter cylinder 3, there is provided a parcel wheel with a circular lift 6, and after the cylinder 4 m 4, a vane wheel v with a belt lifter 8 For the production of cross-folding parts (Figure 2), the cutting cylinder 1 carries two knives 9, whose distance

  corresponds to the length L of the section Knives 9 function-

  in common with three cutting strips 11, distributed regularly

  on the circumference of the grooved cylinder 2 and

  collection, combined each with a row of marbling needles.

  Centrally, between the cutting strips 11, there is each time a folding blade 12, which cooperates with a folding flap 13 of the folding flap cylinder 3. In addition, this folding flap cylinder 3 carries three recesses 14 for knives 19 that can be put in place instead of sliders It cuts on the cylinder 2 with grooves and collection In addition, if necessary, three folding blades will conveniently find place on the cylinder 3 with folding flaps, in order to produce, in common with another folding shutter cylinder

  which is not represented, a second transverse fold.

  The production of cross-folding products according to FIG. 2 is, in the known manner, from a paper strip 16 having the width B of the strip of the printing machine, already folded lengthwise by a folding hopper. , passing over the knife, groove and collector cylinders and folding shutters 1, 2, 3 The products are deposited by the paddle wheel, on the belt take-up 6. For making products that carry only parallel folds according to Figure 3, it is maintained in operation on the knife cylinder 1, centrally between the rollers 9, two rows 17 of needles marger, and put out of service rows 10 needles marger grooved cylinder 2 This can be obtained for example by starting or stopping the control of the feeder lever, or, with little technical expense, by unscrewing the needles of the feeder levers of the grooved and collecting cylinder 2, and deposit The rows of pricking needles 17 of the knife cylinder 1 are each combined with a cutting ruler 18 on the other hand, it is possible to replace the ruler 11 of the cutting ruler. cylinder with grooves and collection 2 by knives 19, and

  turn the knife cylinder 1 of 90 in relation to its drive.

  This last operation is simple to carry out if, for example, the body of the knife cylinder 1 is rotatably mounted on the shaft which drives it, and is connected with the latter by a coupling E with bolts. -collector 4 comes into action It carries three cutting rulers 20 whose distance is equal, on the circumference of the knife cylinder 1, that of a knife 9 relative to an adjacent cutting ruler 18. Each cutting ruler 20 is combined with a row of needle

to marger 21 and an extractor 22.

  In Fig. 1, the knife cylinder 1 is rotated and brought to the desired position to produce parallel folded products. A paper web having half the width B of the printing machine is folded by means of the hopper. folding to a quarter of the width of the strip, which corresponds to the width of the desired product Labandes folded along its length 23, passes between the knife cylinders 1 and grooves and collection 2, and is cut by the knives 19, in leaves of length L Each of the sheets is seized by a row of marching needles 17 and is driven with the cylinder to

  knives 1 When is reached the cylinder 4 feeder and collector.

  the beginning of the leaf is transmitted from the needle row

  to marry 17 to a row of marbling needles 21.

  The sheet which is then driven by the feeder and collector cylinder 4 is then cut in two by the knife 9 in conjunction with a cutting ruler 20 Then the second half of the sheet is received by a row of margin needles 21 products folded along their length are deposited by the feeder cylinder 4 and collectors by the vane wheel 7 on the belt lifter 8 By delivering the products only every two rows of needles to marger, these products are delivered together, the delivery being assisted by the extractor 22. The number of pages of the delivered products can be increased by introducing several superimposed strips in the folder. It is also possible to manufacture products folded along their length having the width of half a band, if the band

  folded along its length enters the folder with this width.

  For a derived production, it is possible to mount in the folder a cylinder 24 to broach whose drive is mounted in an oil-proof casing (Figure 6). For this purpose, the folder must first be removed. 4 feeder and manifold including the paddle wheel-7 and the belt lifter 8 In the exemplary embodiment, these building elements can be taken out complete, in the form of a cassette (Figure 4), after having detached the junction 25 which connects the cylinder 4, feeder and collector, with the trunnion which drives it If the feeder and collector cylinder 41 is placed higher than the knife cylinder I, it suffices to simply take out the vane wheel 7 t and the belt lifter 8 'of the frame (FIG. 5) First of all, it is necessary to detach the chain transmission 26 between the feeder and collector roll 4' and the

7 'paddle wheel.

  When moving to the production of products folded along their length, the rotation of the knife cylinder 1 can be suppressed with respect to its drive if the cutting blades 9 of this cylinder 1 are transformed, and put into service at their places. the cutting strips 18 The rows 17 of margering needles which must be put into service are in this case to be put in place at the place where originally was the knife 9 This variant of the adaptation causes, however, an expense of

more important editing.

  The knife cylinder 1 carries, in the embodiment of the invention, two knives 9 It can for example also be provided with a single knife and a cutting ruler placed in front of it. The circumference of the knife cylinder is then equal to the cutting length L.

Claims (2)

R E V E N D I C A T IO N S   1) Folder for a rotary machine for printing on paper rolls comprising a knife cylinder, a groove and collecting cylinder, and a folding shutter cylinder, in which the knife cylinder carries one or more cutting blades arranged at equal distances on the circumference blades which cooperate with cutting strips placed equidistantly around the circumference of the grooved cylinder and collection, and each provided with a row of needles to marger, the cylinder with grooves and collection bearing on its circumference centrally between the rules Cutting heads, each time, a folding blade, which cooperates with each time one of the multiple folding shutters arranged at equal distances around the periphery of the folding shutter cylinder with a paddle wheel being disposed, for the delivery of the products, as well as a belt take-up device, after the folding shutter cylinder, characterized in that cut (11) of the grooved cylinder and collection (2), can be replaced by knives (19) and rows of needles to marger (10> can be put at will in use, the knife cylinder (1) on its circumference, with respect to the knives, or centrally between these knives (9), each time a cutting ruler (18) provided with a row of needles to lie (17) that can be put in use at will, and rotatable with respect to its drive on the included angle between a knife (9) and an adjoining cutting slat (18) while, with this cylinder (1), is associated a cylinder (4) feeder and collector which carries on its circumference cutters (20) each provided with a row of needle (21) and an extractor (22), the distance of which is equal to that of a knife ( 9) relative to a cutting strip (18) adjacent to the circumference of this knife cylinder (1) and whose number e is one unit smaller than the sound of the cutting rulers (18) plus the knives (9) of the knife cylinder (1) and is, however, at least three mounted with another vane wheel (7) with a belt lifter (8) being placed after   the cylinder (4) feeder and collector.   Folder according to Claim 1, characterized in that the feed and collector cylinder (4) can be removed from the seat of the folder by removing the connection (25) connecting the cylinder (4) with its drive journal, including the wheel   vane (7) and the belt lifter (8).   3) pller according to claim 1, characterized in that the other vane wheel (71) can be removed in common with the belt lifter (8 t) of the seated bed of the folder, separating its drive connection with the feeder and collector cylinder (4)