FR2507963A1 - FOLDER FOR ROTARY PRINTING MACHINES ON ROLLED PAPER - Google Patents

Abstract

A.BOLDING MACHINE INCLUDING A KNIFE CYLINDER 1, A SLOTTED AND COLLECTION CYLINDER 2 AND A FOLDING FLAP CYLINDER 3 AND A BELT CONVEYOR 6. B. CHARACTERIZED IN THAT THE FOLDING BLADES 12 OF THE SLOTTED AND ROLLER CYLINDER COLLECTION 2 CAN BE REPLACED BY KNIVES 16 AND, WITH THE GROOVED AND COLLECTION CYLINDER 2, IS ASSOCIATED A MARGINER AND COLLECTOR CYLINDER 4 WHICH CARRIES ON ITS CIRCUMFERENCE AN ODD NUMBER OF CUTTING RULES 17 PROVIDED WITH ROWS OF 18 NEEDLES , THE DISTANCE OF WHICH IS EQUAL TO THAT WHICH SEPARATES A KNIFE 16 FROM A CUTTING RIM 11 ADJACENT ON THE CIRCUMFERENCE OF THE SLOTTED AND COLLECTION CYLINDER 2, ANOTHER BELT LIFT 7 IS, AT WILL, MOUNTED UNDER THE SLOTTED CYLINDER AND COLLECTION 2. C. FOLDER APPLICABLE TO DIFFERENT TYPES OF FOLDING.

Description

The invention relates to a folding machine for rotary machines to be printed on

  paper rolls for manufacturing

  products with parallel folds and folds.

  DE-OS 25 17 000 shows a folding machine which makes it possible to produce sheets with parallel folds and cross-folded sheets. Cross-fold products are produced in a known manner by passing a folded strip along its length in a group of cylinders comprising a cutting cylinder, a folding blade cylinder and a folding shutter cylinder For producing products which are folded only along their length, under the folding shutter cylinder is provided, a cutting cylinder and collection,

  which has three knives each provided with a row of

  On the other hand, with the exception of a few

  In the case of the folding blades with cutting grooves, it is these blades out of order. In this folder, there is the disadvantage that in the cylinders with knives, folding blades and cutting and collecting, it must be put into operation in addition to

  cutter bars and folding blades, two different cassettes

  the rows of needles to be marbled with the cutters and rows of needles to be pruned with the knife holders This increases the number of different groups and pieces of construction, and has the effect of increasing

  costs of manufacturing the folder.

  Another disadvantage is that the rows of needles marger of the cutting cylinder and collection are combined with the knives which may make it unsafe

  guiding the products The knife holders lift the com-

  product layout, so that if working at high speed, the product can be raised needles to marge

by the thrust of the air.

  The invention proposes to manufacture, with a folder whose production is economical and which offers great operational safety, both folded products

  along their length than cross-pleated products.

  For this purpose, the invention provides a folder for

2 2507963

  rotary printing machines on paper rolls comprising a knife cylinder, a groove and collection cylinder, and a folding shutter cylinder, in which the knife cylinder carries one or more knives spaced equidistantly over the circumference and co-operating with cutting slices arranged equidistantly on the circumference of the cylinder to

  grooves and collection and each provided with a row of

  guilles à marger, this grooved cylinder and collector bearing on its circumference, centrally between the cutting strips each time a folding blade which cooperates with one of the multiple folding flaps arranged equidistantly on the circumference

  cylinder with folding flaps, this cylinder bearing on its cir-

  conference, centrally between the folding flaps, each time, a row of needles that can be put into use at will, and that with these rows of needles to work can cooperate the rows of needles to marger of the grooved and collecting cylinder, a paddle wheel being mounted together with a belt take-up device, after the roller cylinder of

  folding, for the delivery of products This folder is des-

  parallel-pleated and cross-fold products and allows for a high degree of standardization, and

  guides in a safe way the products to bend.

  The plieuso according to the invention is characterized in that the folding blades of the cylinder with grooves and

  can be replaced by knives and, at the cylinder,

  With grooves and collection, is associated a feeder and collector cylinder which carries on its circumference an odd number of cutting rulers provided with rows of needles marger, whose distance is equal to that which separates a knife from a ruler cutting adjacent to the circumference of the grooved and collecting cylinder, another belt lifter being,

  at will, mounted under the cylinder with grooves and collection.

  The folder thus allows a high degree of standard

  For the knife cylinder and grooved cylinder

  and collection, it is possible to use

  with the knives are similar

  grooved and collector cylinder construction elements and feeder and collector cylinder, made in the form of cassettes and each containing a row of pruning needles and a cutting ruler With the exception of the folding blades, it is not necessary to use other cassettes in the three cylinders mentioned Thus decreasing the assortment of spare parts, and can be manufactured more economically more parts In addition rows of needles to marger are not combined with the blade holders and thus guide surely

products.

  The invention will be better understood with regard to the

  description below and the accompanying drawings showing a

  Embodiment of the invention, drawings in which: Figure 1 shows schematically a side elevational view of a folder, Figure 2 shows a product of the folder with folds parallel and folded folds, Figure 3 shows the production of the folder with fold on the length, assembled, figure 4 shows the production, folded on the

  length, folder, unassembled.

  The folder according to the invention contains, arranged one after the other, a knife cylinder 1, a grooved cylinder and collection 2, a cylinder with folding flaps 3, and a feed cylinder and manifold 4 which is located on the grooved cylinder and collection 2 For the delivery of products, it is disposed # following the cylinder with folding flaps 3, a vane wheel 5, with a belt lifter 6, and a belt lifter 7 following the feeder roll 4 For the manufacture of cross-fold products (Figure 2), only the knife cylinder, the groove and collecting cylinder and the folding shutter cylinder are operated. 1, 2 and 3 The knife cylinder 1 carries two cutting blades 8

  whose distance always corresponds to the length L It pre-

  Furthermore, there are two recesses 9 for the knives 16 that can be put into service on the grooved and collecting cylinder 2 The knives 8 cooperate with three cutting strips 11, distributed regularly around the circumference of this grooved cylinder 2 and each of which is combined with a row of pruning needles 10 In each case, a folding blade 12 is cooperatively located between the cutting strips 11.

  each time with a folding flap 13 of the cylinder 2 Central-

  between the folding flaps 13, it is placed each time

  a row of marrying needles 14 which is decommissioned.

  Cross-folding products according to FIG. 2 are produced in the known manner from a paper strip 15 of width B coming from the printing machine, folded along its length by a folding hopper, during passage on the cylinders with knives, with grooves and collection, and with folding shutters, 1, 2, 3 The products are deposited by the

  vane wheel 5 on the belt lifter 6.

  To produce products that are only folded lengthwise, according to FIGS. 3 or 4, the folding blades 12 are replaced by knives 16. In addition, the folding flaps 13 are put in the back position, and they are put into service. the rows 14 of needles to marger, and one moves with respect to the latter

  the delivery point of rows 10 of needles to marger.

  Finally the cylinder 4 feeder and collector is put into action.

  It carries three cutting strips 17, the distance of which is equal to that which separates a knife 16 from an adjacent cutter bar on the circumference of the cylinder 2 grooves and collection Each of the cutting strips 17 is combined with a row of d 18, and is made in common with the latter in the form of a cassette. The same cassettes are used for the cutting strips 11 and the rows of rolling needles 10 of the grooved and collecting cylinder same, we use for the knives 8 and 16 the

same knife holders.

  For the manufacture of products which are folded only over the length according to FIG. 3 or 4, a web of paper having half the width of the strip B of the printing machine is folded by means of a folding member, on a one quarter of the width of the strip, which corresponds to the desired product width The strip 19 folded along its length passes between the knife and groove rollers and collection 1, 2, and is cut by the knives 8 sheets of length L. Each of the sheets is seized by a row of marching needles 10, and is driven by the grooved cylinder and collection 2 During the passage on the cylinder 4 feeder and collector, the sheet is cut in half by a knife 16, in

  connection with a cutting ruler 17.

  The second half of the sheet is then grasped by a row 18 of marbling needles and is entrained with the feeder and collector cylinder 4 When the production is not assembled, that is to say when two products will advantageously be produced. different products by section length L, the halves

  back of the sheet, taken by the roller matcher and collec-

  4, will be placed on the belt lifter 7.

  The front halves of the sheet are transmitted by the row of marbling needles 10 to the row of marbling needles 14 of the folding shutter cylinder 3 and will be deposited therefrom, by the vane wheel 5, on the lifter. To manufacture an assembled production (Figure 3), the cylinder 4 feeder and collector returns the copies to the cylinder groove e stickle 2, and the delivery of products is only on the cylinder: A flap of piliate 4 can remove the belt take-up 7 it is necessary to manufacture with the folder only a folded production on the

length.

  The number of pages of the delivered products can be increased, if one introduces several superimposed barndes in the folding machine One can also manufacture products flies on the length having the width of the half of a band, and the band

  folded in clong enters the folder with this lalecur.

  The knife cylinder carries in the embodiment, two knives 8 It can be?% Urvu also, for example, a single knife, the circsonfren-e of the cylinder to

  The knife is then equal to the length L of the cut leaf.

Claims (1)

R E V E N D I C A T I O N   Folder for rotary machines to print on   rolls of paper having a knife cylinder, a cylinder   groove and collector, and a folding shutter cylinder, in which the knife cylinder carries one or more   knives placed at equal distance around the circumference and   with equally spaced cutting edges on   the circumference of the grooved and collecting cylinder and   views each of a row of needles to marger, this cylinder to   grooves and collection bearing on its circumference, central-   between the cutting strips each time a folding blade which cooperates with one of the plurality of folding flaps arranged equidistantly on the circumference of the folding shutter cylinder, the cylinder bearing on its circumference, centrally between the folding flaps, each time, a row of pruning needles that can be put into service at will, and that with these rows of marrying needles can co-operate the rows of rolling needles of the grooved cylinder and collection, a wheel with pallets being mounted and a belt take-up device, after the folding shutter cylinder, for the delivery of the products, folding machine characterized in that the folding blades (12) of the grooved and collecting cylinder (2) can be replaced by knives (16) and, with the grooved and collecting cylinder (2), is associated a feeder and collector cylinder (4) which carries on its circumference an odd number of cutting rulers (17) of rows of marbling needles (18), the distance of which is equal to that which separates a knife (16) from a   cutting blade (11) adjacent to the circumference of the cylinder   groove and collection (2), another belt lifter (7) being, at will, mounted under the grooved cylinder and collection (2).