EP0250771A2 - Device for removing sheets or folded articles from a folding cylinder with jaws - Google Patents

Abstract

In order to be able to open the folded copies (24) taken from a folding device, for example from a folding jaw cylinder (2), for the purpose of inserting inserts or for mixing operations, a strip line (25) with insertion tongues (12 ) provided circumferential transport and guide device (13) used. These tongues (12) are placed between the individual halves (20, 22) of a copy (24) to be folded between them and remain in the area where the folded copies are guided by the ribbon cable between them. At the delivery point (35), the tongues (12) are removed while spreading the folded copies (24). The folded copies (24) are preferably transferred in the spread state into a transport and storage structure (5) which consists of zigzag or accordion-like segments, for example made of elastic sheets (40), which pull apart when receiving folded copies (24) and then pushed together for storage.

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 take up 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 requires u. a. no overlap, but z. B. the delivery of the folding products led by the carriers with leading fold not easily possible.

The object of the invention is to develop a device for removing 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 without the use of an overfold, and their delivery or transfer with simultaneous spreading also should be possible with a leading fold.

• 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 II-II der Fig. 3
• Fig. 5 einen Schnitt entlang der Linie I-I der Fig. 3;
• Fig. 6 einen Schnitt entlang der Linie III-III 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 IV der Fig. 2;
• Fig.16 eine Ansicht in Richtung V 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 VI-VI 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 is an overall view of a sheet copy or take-over and delivery device;
• FIGS. 2 and 3 enlarged sections from the illustration according to FIG. 1;
• 4 shows a section along the line II-II of FIG. 3rd
• Fig. 5 is a section along the line II of Fig. 3;
• Fig. 6 is a section along the line III-III of Fig. 3;
• 7 to 9 a second embodiment of controllable drivers or tongues;
• 10 to 14 the cyclical feeding and transfer of folded copies into a memory;
• 15 shows a view in the direction IV of FIG. 2;
• Fig. 16 is a view in the direction V of Fig. 2;
• 17 shows a cassette memory;
• Fig. 18 a third embodiment of the driver or tongues and their control and
• 19 shows a half section along the line VI-VI of FIG. 18.

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 sheet or fold 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 II 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 12ʹʹʹ the leading part of the bow lies down 22 on the tongue 12, the jaw 3 has already reached the position 3ʹʹʹ. The difference in speed between the folding flap 3 and tongue 12 is adjusted so that the tongue 12 in position 12ʹʹʹʹ 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 II-II of Fig. 3 is shown at position 12ʹʹʹʹ. 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 3ʹʹʹʹ. Whose transport is now carried out in a known manner by a transport roller 27 until it is taken over by ribbon lines 25 and 26 Circulation speed of the belt lines 24, 26 corresponds to the speed of the toothed belt 13 and thus of the tongues 12, which, as already mentioned, is preferably lower than the peripheral speed of the jaw cylinder. 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 area 4 and then continued via the tape lines 25 and 26 at a reduced speed. The ribbon cable 26 can also take the course that is indicated at 26ʹ. 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 III-III 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 12ʹ of FIG. 3 or in section along the line II. The bow half 20 lies on the cylinder surface of the jaw cylinder 2, while the tongue 12 is axially retracted and does not touch the bow.

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 the position 12ʹʹ. As a result, the tongue 12 comes to rest on the folded copy or on 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 storage 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. Using a device according to PB 3383, they can be removed from a cassette 8 and placed on rails in the direction of arrow 10 and displaced 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 V 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 IV 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 which are 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 VI-VI 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 get between the fold copy or sheet halves 20 and 22 in the region 67 (FIG. 18).

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 transfer and further transport of finished copies on the folding jaw cylinder or from the folding apparatus. Arches brought together in front of the ribbon lines 25, 26, for example in pairs with one another or one above the other, can also be guided, the tongues being able to be introduced and used in the manner according to the invention in order to open such pairs of arches.

Claims (14)

1. Device for the removal and continuation of sheet or fold copies from a jaw cylinder over a ribbon line, characterized by an at least partially next to the ribbon line (25, 26) running endless guide device (13) on which tongues (12) are arranged at a distance from one another which can be inserted laterally between the halves (20, 22) of the folded copies (24) still lying on the collecting cylinder (1) and in the delivery area (35) by a course of the endless guide device which deviates from the path of the ribbon cables (25, 26) (13) with the halves (20, 22) of the folded copies (24) spreading out again. 2. Device according to claim 1, characterized in that the endless guide device (13) rotates at a lower speed than the ribbon cable (25, 26) and is positively guided around a disc (16) arranged on the end face of the jaw cylinder (2) . 3. Apparatus according to claim 2, characterized in that the collecting cylinder (1) has a recess (18) into which tongues (12) for engaging under the half of the sheet still lying on the collecting cylinder (1) (20) can be inserted. 4. The device according to claim 3, characterized in that the tongues (12) snap into the recess (18) laterally under the arch half (20) (Fig. 5). 5. Device according to one of the preceding claims, characterized in that the axis means of the deflecting rollers (15, 47) for the ribbon cable (25, 26) and the endless guide device (13) on the delivery area (35) of the folded copies (24) are offset from one another (FIGS. 13, 14). 6. Device according to one of claims 1 to 3, characterized in that the tongues (12) are attached to spring-loaded bolts (28) which counter to the spring pressure via a with the jaw cylinder (2) rotating curve (32, 34) in the Recesses (18) can be controlled under the sheet half (20) lying on the collecting cylinder (1) (FIGS. 7, 8). 7. The device according to claim 6, characterized in that the bolts (12) are rotationally fixed to the toothed belt (13). 8. The device according to claim 1, characterized in that in the gusset between the jaw cylinder (2) and the collecting cylinder (1) from the side around a deflection plate (61) guided tongues (57) under the fold back, which is still with the sheet halves ( 20, 22) fold copies (24) lying on the collecting cylinder (1) can be inserted. 9. The device according to claim 8, characterized in that the tongues (24) are resilient and U-shaped and can be deflected by a fixed curve (66) (Fig. 19, 57ʹ). 10. Device according to one of the preceding claims, characterized in that the delivery of the folded copies (24) or two sheets each in an open chamber (36) of a zigzag or accordion-shaped apart and collapsible or pullable transport and storage system ( 5) with spread. 11. The device according to claim 10, characterized in that the storage and transport system (5) for receiving the folded copies (24) can be pulled apart by a screw (50). 12. Device according to one of the preceding claims, characterized in that the folded copies (24) after release from the folding flaps (3) can be driven by a transport roller (27) and are delayed. 13. A device for receiving and continuing sheet or fold copies through a ribbon line, characterized in that at least partially next to the ribbon line (25, 26) rotates an endless guide device (13) on which tongues (12) are arranged at a distance from one another , which can be inserted laterally between the halves of a folded copy (24) that are not yet superimposed, or two sheets or bundles of sheets guided one above the other in the ribbon line (25, 26) before they are stacked or merged, and in the delivery area (35) by one of the path of the ribbon lines (25, 26) deviating course of the endless guide device (13) with spreading of the halves (20, 22) or the sheet can be removed again. 14. The apparatus according to claim 10, characterized in that a screw (50) for pulling apart the transport and storage system (5) is provided.

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