EP0250771B1 - Device for removing sheets or folded articles from a folding cylinder with jaws - Google Patents

Description

The invention relates to a device for the removal and continuation of sheet or fold copies from a jaw cylinder via a ribbon cable.

From DE-PS 31 43 243 a folder is known, in which with the help of a ribbon line guided around the folding jaw cylinder, transverse fold copies are taken over at this and transported to a further processing station. Furthermore, it is known from DE-PS 34 27 559 to receive the folded copies of the folding jaw cylinder by drivers which are arranged at a distance from one another on a circumferential transport device and which are in the approximately wedge-shaped area behind the transfer point of the folded product from the collection or Engage the folding knife cylinder to the folding jaw cylinder under the fold back. While in the first-mentioned device an opening of the folded copies, for example for inserting inserts, separate devices, such as opening cylinders, are required, which attack the so-called overlap, which inevitably leads to increased paper consumption and is space-consuming and costly, the latter builds The known device mentioned is considerably more compact and does not require, inter alia, an overlap. B. the delivery of the folding products led by the carriers with leading fold not easily possible. DE-A-25 08 194 also discloses a device for opening shingled transported folded products, in which an endless conveyor device runs at least partially next to a belt line, on which tongues are arranged at a distance from one another. With the help of these tongues, folded products are opened briefly so that they can be inserted into these inserts. The tongues are already pulled out of the products in the delivery area.

The object of the invention is to develop a device for the removal of sheet or fold copies from a folding jaw cylinder of the type mentioned in such a way that they can be opened or spread again, and their delivery or transfer while spreading is also possible with a leading fold should.

Fig. 1

eine Gesamtansicht einer Bogen- bzw. Falzexemplarübernahme- und Abgabevorrichtung;

Fig. 2 und 3

vergrößerte Ausschnitte aus der Darstellung gemäß Fig. 1;

Fig. 4

einen Schnitt entlang der Linie IV-IV der Fig. 3;

Fig. 5

einen Schnitt entlang der Linie V-V der Fig. 3;

Fig. 6

einen Schnitt entlang der Linie VI-VI der Fig. 3;

Fig. 7 bis 9

eine zweite Ausführungsform von steuerbaren Mitnehmern bzw. Zungen;

Fig.10 bis 14

die taktmäßige Zuführung und Übergabe von Falzexemplaren in einen Speicher;

Fig.15

eine Ansicht in Richtung XV der Fig. 2;

Fig.16

eine Ansicht in Richtung XVI der Fig. 2;

Fig.17

einen Kassettenspeicher;

Fig.18

eine dritte Ausführungsmöglichkeit der Mitnehmer bzw. Zungen und deren Steuerung und

Fig.19

einen Halbschnitt entlang der Linie XIX-XIX der Fig. 18.

This object is achieved by applying the features of the characterizing part of claim 1. Further developments result from the subclaims and from the description in connection with the drawings. Each of these shows schematically:

Fig. 1

an overall view of a sheet or fold copy and delivery device;

2 and 3

enlarged sections from the illustration of FIG. 1;

Fig. 4

a section along the line IV-IV of Fig. 3;

Fig. 5

a section along the line VV of Fig. 3;

Fig. 6

a section along the line VI-VI of Fig. 3;

7 to 9

a second embodiment of controllable drivers or tongues;

Fig. 10 to 14

the regular feeding and transfer of folded copies to a memory;

Fig. 15

a view in the direction XV of Fig. 2;

Fig. 16

a view in the direction XVI of Fig. 2;

Fig. 17

a cassette memory;

Fig. 18

a third possible execution of the driver or tongues and their control and

Fig. 19

a half section along the line XIX-XIX of Fig. 18th

Advantageously, with the device according to the invention it is possible to take over sheet or fold copies from the folder and to transfer them directly into a memory with their spreading, in which the sheets or fold copies for mixed documents can later be simply extracted by pulling the memory apart. and merging purposes can be opened.

1 shows, by way of example, a collecting cylinder 1 and a folding jaw cylinder 2 attached to it, the latter being equipped with folding jaws 3. Folded sheets or Folded copies are in area 4 of the The jaw cylinder 2 is removed and fed to a transport and storage system 5. The storage system preferably consists of a number of zigzag or accordion-like segments that can be pulled together and pulled apart or pushed, for example from elastic sheets welded to each other at the top and bottom, which can be pulled apart to accommodate folded copies and can then be pushed together again for compact storage. Such storage systems are described in the same-age application PB 3382. Associated transport devices for this storage can be found in the same-year patent application PB 3383. In area 6 the structure can be pushed together for storage and can be fed to a storage cassette 8 via rails 7. The above process is ongoing. The storage cartridges 8 are constantly fed empty in the direction of the arrows 9 and 10 and also continuously loaded in the direction of the arrow 11 with folded copies or sheets.

According to FIG. 3, tongues 12 are fastened to an endless circulating transport device, preferably in the form of a toothed belt 13 at a distance from one another, which tongues preferably rotate at a speed that is lower than the peripheral speed of the jaw cylinder 2, the toothed belt being around a drive wheel 14 and a Deflection wheel 15 runs and is guided over a freely rotatable disk 16 arranged on the end face of the jaw cylinder 2. Preferably, the pulley 16 is positively entrained by the toothed belt 13, and, as already mentioned above, at a lower speed than the jaw cylinder itself. The toothed belt 13 and the tongues 12 are cyclically driven so that they are in the 12ʹ position in the direction of rotation 17 seen, just behind the jaw position 3ʹ immerse in a recess 18 of the cylinder 1. The position 12ʹʹ shows the maximum immersion depth of the tongues 12, wherein the folding flap 3 has meanwhile rotated further into the position 3ʹʹ and here a sheet to be folded or a sheet packet from has taken over a folding knife 19 in a known manner. The section shown in Fig. 5 along the line VV of Fig. 3 shows the process of overlapping the tongue 12 over the part 20 trailing during the folding process of a sheet to be folded to a folded copy 24, which with the two sheet halves 20, 22 still on the Collection cylinder 1 rests on a foam layer 21 and is pressed between the cylinders 1, 2, whereby the overlapping process of the tongue 12 is facilitated laterally over the edge of the sheet. Fig. 5 also shows that the bow half 20 is locally slightly deflected briefly into the recess 18 of the collecting cylinder 1 in order to spring back immediately and thus get under or behind the tongue 12.

Fig. 3 shows with further rotation in the direction of arrow 17, the tongue 12, which remains more and more behind the jaw 3, due to the already mentioned different speeds of the rotating toothed belt 13 and the jaw cylinder 2. In the position 12 '' 'lies the leading arc part 22 over the tongue 12, the jaw 3 has already reached position 3 '' '. The difference in speed between the folding flap 3 and the tongue 12 is adjusted so that the tongue 12 in the position 12 '' '' has approximately reached the end of the folded sheet 24, as seen in the direction of rotation.

In Fig. 4 the section along the line IV-IV of Fig. 3 is shown at position 12 '' ''. The tongues 12 here lie between the bow halves 20 and 22, a guide plate 23 supporting the sheets or folded copies 24 in a known manner against centrifugal forces.

In area 4 of FIG. 3, the folding flap 3 has already released the folding copy 24 in the position 3 ″ ″. Its transport now takes place in a known manner by means of a transport roller 27 until it is taken over by ribbon lines 25 and 26.

The endless guiding device 13 runs slower than the strip line 25, 26. The toothed belt 13 also runs approximately parallel or next to the tape lines 25 and 26 during the guiding of the folded copies 24 therein. The folded copies 24 are braked in the region 4 and then continued via the tape lines 25 and 26 at reduced speed. The ribbon cable 26 can also take the course that is indicated at 26 '. In this case, it runs in a known manner around the folding jaw cylinder 2 and thereby enables the folding copies to be better lifted off in the region 4.

The section along line VI-VI of FIG. 3 is shown in FIG. 6 and shows the situation of the fold copies 24 after leaving the folding jaw cylinder 2. The tongues 12 lie between the two fold copy or sheet halves 20 and 22, but between the ribbon cables 25, 26 are guided and transported. FIGS. 7 to 9 show a further possibility of tongue penetration. Here, each tongue 12 is fastened to a bolt 28 which is mounted in the housing 29 and is supported by compression springs 30. The entire device is embedded in the toothed belt 13. The compression springs 30 are in turn received by a support disk 31 via a housing 29, while on the other hand the bolt 28 is pressed by the compression spring 30 against the cam disk 32 attached to the jaw cylinder 2. An adjusting screw 33 prevents the pin 28 from rotating. Since the toothed belt 13 rotates on the disk 16 at a lower speed than the jaw cylinder 2, the pin 28 and thus the tongue 12 are axially controlled via the cam disk 32.

FIG. 8 shows the situation in the position 12 'of FIG. 3 or in section along the line VV. The arc half 20 lies on the cylinder surface of the jaw cylinder 2, while the tongue 12 is axially retracted and does not touch the arc.

From Fig. 7, the position of the tongue 12 is shown in the position 12ʹʹ. The cam 32 allows an axial displacement of the bolt 28 from position 12ʹʹ. As a result, the tongue 12 comes to rest on the folded copy or the sheet half 20 and the folded copy or sheet half 22 can thus in turn lie over the tongue 12. After leaving the jaw cylinder 2 in the area 4 of FIG. 3, the compression spring 30 holds the tongue 12 in its axial position.

FIG. 9 shows a top view in different positions of the position of the tongue 12. The cylinder surface of the jaw cylinder 2 with the cam plate 32 and the support plate 31 move from right to left, but at a lower speed. As a result of this relative speed, the bolt 28 is pulled over the cam disc 22 and can execute the axial stroke in accordance with the curve shape 34.

As further shown in FIGS. 2 and 3, the folded copy 24 is then continued through ribbon lines 25 and 26. The toothed belt 13 with the tongue 12 follows its course. In the area 35, the tape lines 25, 26 transfer the folded copy 24 to the transport and storage system 5. For this purpose, FIG. 10 shows an enlarged section of the area 35. The folded copy 24 preferably leaves the tape lines 25 and 26 in a vertical form with a leading fold. 10, it first plunges into an open chamber 36 of the zigzag or accordion-like memory structure, which is moved in the direction of arrow 37. This structure of, for example, elastic metal sheets 40, which are connected to one another at points 38 and 39, for example welded, can be pushed apart and pushed together. For compact storage, they lie close together in the form of a laminated core 41. By means of a device according to EP-A-0250772, they can be removed from a cassette 8 and placed on rails in the direction of arrow 10 and moved along arrow 37 at a predetermined speed, this speed or the Removal speed of the sheets 40 from the sheet stack 41 are coordinated. The sheets 40 are detached by means of a worm drive 42 with a worm, the pitch of which, viewed in the direction of the arrow 37, becomes ever greater. As a result, the sheets 40 are pulled apart further and further with increasing feed speed and then fed cyclically to the drivers 43, which are also clocked and are fastened to a chain or to a toothed belt 44 and move the transport and storage system in the direction of the arrow 37. The arcuate tongues 45 and 46 located between the sheets ensure a distance between the sheet halves 20, 22 in the sheet stack 41, which facilitates the penetration of the screw 50.

11 to 14 show in individual subsequent steps the inclusion of the folded copy 24 by the transport and storage system 5. The support wheel 15 of the toothed belt 13 and the support roller 47 of the ribbon cable 26 are offset from one another. As a result, the tongues 12 follow the circular path of the toothed belt 13, so that they detach from the surface of the ribbon cable 26. Since they lie between the fold copy or sheet halves 20 and 22, they pull these halves apart on their circular path (FIG. 14).

FIG. 16 shows in a view in the direction XVI of FIG. 2 the further course of the sheet transfer. In the area 48, the two arcuate tongues 45 and 46 penetrate between the pulled-apart folded copy or sheet halves 20 and 22. Through the curved guidance of the rails 7 shown in FIG. 16 with simultaneous transport movement in the direction of arrow 37, the tongues 45 and 46 urge the Halves of the sheet 20, 22 on one side of the folded copy 24 ever further apart. In the area 49, the rotating screw 50 penetrates between the sheet halves 20, 22 and pulls the sheet opening to the other side of the folded copy 24, the other half of the transport and storage system 5 then likewise in the opened folded copy 24 can penetrate. In area 51 of FIG. 16, all tongues 45 and 46 have thus penetrated between the folded copy or sheet halves 20, 22. In this state, the transport and storage system, as shown in area 52, is pushed together and can be stored in a cassette 8 in connection with the description of FIG. 4. If the transport and storage structure 5 is pulled out of a cassette again, the folded copies are spread out so that supplements can be added.

FIG. 15 illustrates in a view in the direction XV of FIG. 2 the process of immersing the worm 50, as described above, in the area 49 of FIG. 16, into the bow halves 20, 22 already open on this side and pulls through their rotation counterclockwise this opening on the other side of the fold copy. In the entire area of the screw 50, the fold copy 24 remains open during the feed by the screw rotation and the movement of the transport and storage system until the screw copy 50 has been safely taken over by the transport and storage system 5.

FIG. 17 shows a further possibility for storage in cassettes 8. Here, a section of the transport and storage system 5 with the folded copies 24 accommodated rests on rails 54. A latch 55 indicated in FIG. 1 prevents it from sliding out of the cassette 8. This Bolts 55 are only retracted by a device (not shown) when a transport system section is picked up or released.

FIGS. 18 and 19 show a further possible embodiment of a tongue guide. The structure is the same as that described in connection with FIG. 3. Fig. 18 shows how the tongue 57 attached to a toothed belt 56 or a chain dips under the bow half 22, also before that Folded copy is closed. The toothed belt 56 is in turn supported with its back on the disk 16 arranged on the end face of the jaw cylinder 2 and is further guided by support rollers 14 and 58 to 60 and by a drive wheel 61. A section along the line XIX-XIX of FIG. 18 is shown in FIG. 19 to illustrate the process of tongue control. The drive wheels or disks 61 and 62 are fixedly connected to a drive shaft 63 and rotate in the clockwise direction (FIG. 8). A bolt 64 is axially displaceably mounted on the disk 62 and is pressed by a compression spring 65 against a fixed cam disk 66. If the tongue 57 is now guided tangentially between the pulleys 61 and 62 by the toothed belt 56, the bolt 64 presses the tongues 57 in the position shown in FIG. As a result, it is able to move in the area 67 (FIG. 18) between the folded copy or. Halves 20 and 22 to get.

The dispensing situation in area 35 of FIG. 18 is the same as in FIG. 3. Here, too, wheels 58 and 68 of toothed belt 56 and belt line 25 are offset from one another. As a result, the tongue 57 is released from the ribbon cable 25 during a counterclockwise rotation when the folded copies 24 are fanned out, and thus also the sheet half 22 that is carried along.

The invention described above is not limited to the takeover and the further transport of finished folded copies on the folding jaw cylinder or from the folding apparatus. It is also possible for sheets to be brought together in front of the strip lines 25, 26, for example in pairs with one another or one above the other, the tongues being able to be introduced and used in the manner according to the invention for the purpose of opening such pairs of sheets.

Claims (13)

1. Arrangement for the removal, further guidance and delivery of sheet or folded copies from a folding jaw cylinder by way of a band line, characterised by a driven continuous guiding device (13) which runs at least in part next to the band line (25, 26) and on which there are arranged, spaced apart from each other, tongues (12) which can be introduced laterally between the halves (20, 22) of the folded copies (24) still lying on the collecting cylinder (1) and can be guided out again in the delivery area (35) as a result of a course of the continuous guiding device (13) deviating from the path of the band lines (25, 26), with spreading of the halves (20, 22) of the folded copies (24).
2. Arrangement according to claim 1, characterised in that the continuous guiding device (13) circulates with a lower speed than the band line (25, 26) and is guided in a form-closing manner about a disc (16) which is arranged on the face of the folding jaw cylinder (2).
3. Arrangement according to claim 2, characterised in that the collecting cylinder (1) has a recess (18) into which tongues (12) can be introduced for the purpose of gripping below the sheet half (20) still lying on the collecting cylinder (1).
4. Arrangement according to claim 3, characterised in that the tongues (12) snap into the recess (18) laterally below the sheet half (20) (Figure 5).
5. Arrangement according to one of the preceding claims, characterised in that the axle centres of the deflection rollers (15, 47) for the band line (25, 26) and the continuous guiding device (13) at the delivery area (35) of the folded copies (24) are offset in relation to each other (Figure 13, 14).
6. Arrangement according to one of the claims 1 to 3, characterised in that the tongues (12) are secured to spring-loaded pins (28) which can be controlled in opposition to the spring pressure by way of a cam (32, 34), circulating with the folding jaw cylinder (2), and directed into the recesses (18) under the sheet half (20) lying on the collecting cylinder (1) (Figures 7, 8).
7. Arrangement according to claim 6, characterised in that the tongues (12) are secured in a rotationally secure manner to the toothed belt (13).
8. Arrangement according to claim 1, characterised in that tongues (57) guided in the wedge between the folding jaw cylinder (2) and the collecting cylinder (1) from the side about a deflecting disc (61) can be introduced under the folded spines of the folded copies (24) still lying with the sheet halves (20, 22) on the collecting cylinder (1).
9. Arrangement according to claim 8, characterised in that the tongues (24) (sic) are formed in a resilient and U-shaped manner and can be deflected by means of a stationary cam (66) (Figure 19, 57').
10. Arrangement according to one of the preceding claims, characterised in that the folded copies (24) or two sheets are delivered, in each case, into an opened chamber (36) of a transportation and storage system (5), which can be pushed or drawn apart and together in a zigzag or concertina-shaped manner, with spreading.
11. Arrangement according to claim 10, characterised in that the storage and transportation system (5) can be drawn apart, for the purpose of receiving the folded copies (24), by means of a worm (50).
12. Arrangement according to one of the preceding claims, characterised in that the folded copies (24), after release from the folding jaws (3), can be driven and are retarded by means of a transportation roller (27).
13. Arrangement for taking up, guiding further and delivering sheet or folded copies by means of a band line (25, 26), in which a continuous guiding device (13) circulates at least in part next to the band line (25, 26), on which device there are arranged, spaced apart from each other, tongues (12) which can be introduced laterally between the sheets or folded copies, characterised in that the tongues can be introduced between two sheets or sheet packages, which are guided together in the band line (25, 26) one upon the other, before the latter are laid one upon the other or together, and can be guided out again in the delivery area (35) as a result of a course of the continuous guiding device (13) deviating from the path of the band lines (25, 26), with spreading of the sheets.

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