SU1211096A1 - Folding apparatus for roller rotary presses - Google Patents

Abstract

Sheet folding apparatus for a rotary printing machine comprises a knife cylinder (1), a groove-collecting cylinder (2) and a folding blade cylinder (3). The cylinder (1) has one or more cutting knives (8) disposed around the circumference and co-operating with cutting bars (11) uniformly spaced around the circumference of the cylinder (2) and each equipped with a needle row (10). The cylinder (2) also carries a folding knife (12) centrally between each of the bars (11). Each folding knife (12) co-operates with one of a plurality of folding blades (13) disposed at equal intervals around the circumference of the cylinder (3), which carries, at its circumference centrally between each of the folding blades, a needle row (14) which can optionally be brought into operation and which can co-operate with needle rows of the cylinder (2). The folding knives (12) of the cylinder (2) can be replaced by cutting knives (16). Associated with this cylinder (2) is a spur-collecting cylinder (4), which carries at its circumference an odd number of cutting bars (17) each equipped with a needle row (18). The spacing of these bars is equal to that of a cutting knife (16) from an adjacent cutting bar (11) at the circumference of the cylinder (2). <IMAGE>

Description

The invention relates to a folding apparatus for role-playing rotary machines for the manufacture of articles folded in the longitudinal, as well as in the longitudinal and transverse directions.

The folding apparatus for products folded by choice in the longitudinal direction and in the longitudinal and transverse directions is described in German laid-open application No. 251700, cl. In 65 N 45/16, published. 10.28.76.

Products with longitudinal and transverse folds are made in a known manner by passing the folded along the web through a group of cylinders consisting of one cutting cylinder, one knife and one valve cylinder. For the manufacture of products folded only in the longitudinal direction, under the knife cylinder there is a cylinder for cutting and picking, having three knives, each of which is provided with a graph row. Further, in addition to performing some adjustment work, it is necessary to remove the knife from the cutting cylinder and replace the knife blade folding blades with cutting grooves or remove the folding blades with cutting grooves from the action.

The disadvantage of this folding machine is that the cutting cylinder, knife cylinder and cylinder for cutting and picking, along with the knife holders and folding knife, use two different cassettes, namely, grafted rows with marzan and grafted rows. a knife holder. This increases the number of various structural parts and assemblies and is manifested in an increase in costs in the manufacture of the folding apparatus. Further, the disadvantage is that the graphed cylinder rows for cutting and picking are combined with knives, which creates the risk of unreliable product wiring. The knife holders raise the beginning of the product so that at higher cylinder speeds the product may rise from the grates due to air pressure.

The purpose of the invention is to manufacture, using an economically manufactured and highly functional folding folding apparatus, products that are folded both in the longitudinal, and in the longitudinal and in the transverse directions. The invention is based on the task of creating a folding device for rotor rotary machines with one knife cylinder, one slot-collecting cylinder and one valve cylinder, in which the knife cylinder has one or several knives located around the circumference at the same distance and, respectively, who work together with those located on the same5

five

the circumferential distance of the slot-collecting cylinder and each equipped with a single graphite row of marzan, the slot-collecting cylinder along the circumference between the marzans has respectively a folding knife, which works respectively with one of several located at the same distance along the the circumference of the valve cylinder of the folding valves, the valve cylinder along the circumference in the middle between the folding valves has, respectively, one selectable graphite row and The grafted rows of the slot-collecting cylinder can interact with these graphs in rows, and to extract the products behind the valve cylinder there is a pen dispenser with terminals using a conveyor belt to make products folded in the longitudinal and longitudinal and transverse directions, providing high degree of standardization and reliable wiring of folded products.

According to the invention, the problem is solved due to the fact that the folding knives of the slot-collecting cylinder can be replaced with knives, and the slot-collecting cylinder corresponds to a graphed-collecting cylinder, around the circumference of which there are an odd number of each

Q with one grapheatee row of marzans, the distance between which is equal to the distance of the knife to the neighboring marzan around the circumference of the slot-collecting cylinder, and optionally placed another outlet tape conveyor under the slot-collecting

top hat Due to this folding machine provides a high degree of standardization. At the knife cylinder and the slot-collecting cylinder, the same knife-carrying knife holders are used. Similarly, the same are, respectively, containing one graphed row and one marzan, made in the form of a cassette, the nodes of a slot-collectingglobe cylinder and a graphed-collecting cylinder. The remaining cassettes, with the exception of the folding knives, are not used for these three cylinders. Consequently, the range of parts is reduced and economic production in higher quantities becomes possible. In addition, graphene rows are not combined with holders and thus reliably conduct products.

FIG. 1 schematically shows a folding machine, side view; in fig. 2 - folding production in the longitudinal and transverse direction

S apparatus; in fig. 3 - longitudinal production of folding machine, with a selection; in fig. 4 - folded in the longitudinal

the direction of production of the folding machine, without selection.

According to the invention, the folding apparatus contains one blade cylinder 1, one slot-collecting cylinder 2, one valve cylinder 3, and also a grate-collecting cylinder 4 located on the slot-collecting cylinder 2. the valve cylinder 3 has a pen reamer 5 with leads by a belt conveyor 6 and behind the grapheel-collecting cylinder 4 is a terminal belt conveyor 7. For making products folded in the longitudinal and transverse directions (phi 2, only knife, slot-collecting and valve cylinders 1, 2 and 3 are used. The knife cylinder 1 has two knives 8, and the distance between them corresponds to the length of the cutting L. Further, it has two notches 9 for the inserted in the groove-collecting cylinder 2 knives 16. The knives 8 work with three combined each with one grapheechnyy number 10, evenly distributed around the circumference of the slot-collecting cylinder 2 marzan 11. In the middle between marzan 11 there is respectively one folding knife 12, which interactions corresponding to one folding valve 13 of the valve cylinder 3. In the middle between the folding valves 13, one out of line graphite row 14 is located, respectively.

The manufacture of products in the longitudinal and transverse directions according to FIG. 2 is made in a known manner from the folded web by means of a folding funnel 15 web width B of the printing press when passing the blade, slot-collecting and valve cylinders 1, 2 and 3. Production is outputted through a pen spreading unit 5 onto the exit conveyor belt 6.

To manufacture products that are folded only in the longitudinal direction, as shown in FIG. 3 or 4 folding knives 12 are replaced by knives 16. Next, folding valves 13 are stopped, graphed rows 14 are put into operation and the recoil point of graphed rows 10 is shifted to the latter. Finally, graphed-collecting cylinder 4 It has three marzan 17, the distance between which is equal to the distance of the knife 16 to the neighboring marzan 11 on the circumference of the slot-collecting cylinder 2. Each marzan 17 is combined

with one grapheine row 18 and made together with the latter in the form of a cassette. The same cassettes are used for the marzans 11 and the graphed rows 10 of the slot-collecting cylinder 2. Similarly, for the knives 8 and 16, the same knife holders are used.

To manufacture products that are folded only in the longitudinal direction, as shown in FIG. 3 or 4 paper web

0 half the width of the web 3 In the printing press through the folding funnel, it is folded one quarter of the width of the web, which corresponds to the required width of the product. The fold 19 along the blade 19 is held between the knife and slot-and-cut cylinders 1 and 2 and is cut by knives 8 into sheets of length L. Each sheet is graphed by row 10 and is held by the slot-collecting cylinder 2. With the passing of the collecting cylinder 4 the sheet is divided in half by a knife 16 combined with marzan 17. After that, the second half of the sheet is taken graphically by row 18 and is held by a graphite-collecting cylinder 4. For products without selection (Fig. 4), the cotor is preferably made with two products differing from each other by the length of the chop-L, the rear halves of sheets received by the grapheater-collecting cylinder 4 are folded onto an output IU.mechny conveyor 7, the front halves of the sheets are transferred by the graphed rows 10 to the graphed rows 14 of the valve cylinder 3 and the latter through the pen spreading device 5 is output to the output conveyor belt 6. For the manufacture of products with a selection (Fig. 3), the grapheater-collective cylinder 4 withdraws the copies back to the slot-collecting cylinder 2, and the output of the product is performed only on the valve cylinder 3. The output conveyor belt 7 is not required, if the production is folded along with the aid of a folder, it should be made only with a selection.

The number of pages of output may be increased if several webs are inserted into the folding machine overlapping each other. Production can also be made, folded in the longitudinal direction, with a width of half of the web, if the folded along the web enters the folder with

this width.

It is recognized as an invention according to the results of the examination carried out by the Office for the Invention of the German Democratic Republic.

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Claims (1)

A FOLDERING DEVICE FOR ROLE ROLLING MACHINES, comprising a knife cylinder, one or more knives located around the circle at the same distance, a groove-collecting cylinder with marzans located at the same distance along its circumference, each of which corresponds to a grapheque row with the possibility of interaction with the knife of the knife cylinder , and folding knives located between the marzans, a valve cylinder with one or several folding at the same distance along its circumference valves with the possibility of interaction with marzans located in the middle around the circumference between the folding valves, respectively, one graphene rows, which can interact with the graphene rows of the groove-collecting cylinder, and located behind the valve cylinder, the pen layer and the outlet ribbon conveyor, characterized in that it has a graphene-collecting cylinder 4 connected to the groove-collecting cylinder 2, along the circumference of which an odd number of marzans 17 are located, Each of which is equipped with one grapheic row 18, the distance between the marzans is equal to the distance from the knife 16 to the neighboring marzan 11 around the circumference of the groove-collecting cylinder 2, and an additional output ribbon conveyor 7 is placed under the groove-collecting cylinder 2, while the folding knives 12 are mounted on knife cylinder with the ability to replace with knives 16. FIG. 1