EP0655407B1 - Method and apparatus for roll-up accumulation of printed products - Google Patents

Description

The invention relates to a method and a device for the winding-shaped storage of Printed products and for later loading of the subsequent machines. The winding and unwinding of the Print products are made continuously with just one wrapping tape instead of two otherwise one of which acts as the upper band and the second as the lower band.

DE-PS 22 07 556 describes a device with which printed sheets are collected, by being wound between two tapes on a winding hub above and below the bottom and get saved. For this purpose, the printing sheets, which are shingled in a conveying stream, run between two winding tapes, each running from an upper supply roll and a lower supply roll.

These winding tapes are connected to the winding hub and form after the flow has started scaled printed sheet between both belts a pair of guide belts.

In this solution, it is particularly disadvantageous that the winding hub is driven and the two Supply rolls must be braked. To do this in accordance with the feed rate to bring the flow, a very complex control device must be used. This The control device must keep up with the drive speed, which changes as the reel grows the conveying speed of the flow and the changing braking action align the supply rolls.

It is still gem. CH-PS 672 628 known that on a winding, from a drive motor driven, with three belts the winding of printed products takes place. First, all three Belts effective as a sub-belt for the print products to be fed. After the first turn of the A band wraps around the winding around 360 degrees and then continues to run around the winding.

Now, after the further supply of printed products to the winding, it acts as an upper band for them Printed products. The two other tapes are wrapped after a partial wrap of led away and led over several roles to him again, and now also act as Upper belt, but then already in the insertion area of the printed products.

Here it is particularly disadvantageous that at least three tapes must be used and additionally another roller track to compensate for the changing diameter of the stationary winding   is required. CH-PS 672 628 shows a method according to claim 1, but with several Winding tapes, and a related device according to the preamble of claim 11.

The invention is based on a method with associated device for winding-shaped storage to create printed products that get by with a drive motor that an upper or submersible feeding with only one winding tape enables possible damage in the largely avoiding the contours and allowing a more compact design, whereby the device can also be used to load the subsequent machines without changing the frame.

According to the invention, a method was developed according to claim 1, with which printed products on a single winding tape that is unwound from a tape supply reel to be wound around a winding core, which is simultaneously driven by the winding tape. The one stored on the tape supply roll Wrapping tape is pulled off a drive belt and over a tape feed roll by a drive is driven, fed to the winding core. This winding core is almost 360 degrees from the winding tape wrapped around and the winding tape then runs against the transport direction of the printed products deflection roller driven by a belt drive and another counter roller to a sweeping roller. This guides the winding tape approximately parallel to the product stream and carries it back to the Winding core to which the winding tape is attached.

The product flow is below the winding belt on the one that has not yet run around the winding core Wrapping tape part transported slightly convex to the winding core, and thus on the winding core wound up and stored on it.

The drive of the drive belt is first actuated by a drive motor, as is the belt drive the tape feed roller and also the tape drive of the deflection roller. The infinitely variable drive motor runs constantly, but the drive speed is at the three drive points of the winding belt interpreted differently. To wind up the winding core, the tape drive must be faster than that Belt drive and the belt drive run faster than the drive. When loading the successor machines the drive speed must be greater on the drive than on the belt drive and greater on this than on Belt drive. The speed differences when winding or unwinding z. B. thereby achieved that two chain drives are provided. There are two sprockets on the drive motor shaft same number of teeth fixed, also on the shaft of the belt drive. On the waves of the 'drive and the belt drive chain wheels are provided with different number of teeth, which in connection with   Coupling elements are rotatable. When loading successor machines, one over a freewheel with the tape supply roller connected slip clutch from the drive motor with driven.

The required different drive speeds when winding or unwinding are thus guaranteed by the engagement of the different sized sprockets. This relative slight differences allow such tightening of the winding tape that between two layers of the wrapping tape integrated printed products are immovably fixed. The stepless Control of the drive motor is used to adapt the winding speed to the product feed speed.

An improvement of the process, especially for the processing of problem papers, provides that the counter roller is further away from the area in which the print products to be stored in the Run in winding core, is positioned. This is provided above the winding core, with the sweeping roller is placed close to the counter roller. Furthermore, the run of the winding tape is changed so that it is guided from the counter roller to the deflection roller as before and runs from there to the sweeping roller, but from the sweeping roller it now runs directly into the winding core and thus closes the Wrapping around the winding core in the area of the inlet of the printed products to be stored.

The printing products to be stored on the winding core are no longer fed through the specially guided wrapping tape. Rather, it becomes a normal feed belt, the lower belt of which Belt drive with is used. In the inlet area of the printed products in the winding core, the is set slightly larger than the respective scale thickness, a bow link is arranged, the one safe entry of the scales guaranteed.

At the same time, a bridging band is provided on the counter roller and the sweeping roller, through which the wrap-free space between these two roles is bridged and the product flow also in this gap receives upper band support.

Since not only the printed products are stored on the winding core, but also by the Corresponding known processing machines are fed directly into further processing machines To provide braking devices. So when rewinding it should be noted that it should be reeled against braking is to ensure an appropriate tightening of the winding tapes. When unwinding the   The winding core is subjected to a braking effect to the stored product stream on the To keep the winding core taut.

The device according to claim 11 is designed such that the winding core by at least one roller is formed, which is rotatably mounted on a guide shaft. This guide shaft is on both sides One roller bearing is provided as a roller, which runs on a roller guide. So that the Winding core in the direction of the product flow while the rewind is running to meet the growing requirements Continue winding accordingly on the roller guide, so it is freely movable in the conveying direction.

By wrapping the winding tape, it is kept within the limits of what is required. In order to but the winding core cannot tilt, is also on both sides next to that as a roller serving rolling bearing a gear is provided which engages in a rack. So that will guarantees that the winding core with continuously increasing winding diameter, also continuously in Direction of delivery can evade. The device with drive motor, winding core and the winding tape guide devices forms with a gesture a functional unit that is designed to be mobile To ensure precise central feeding of the product flow and to operate the downstream machines can. The frame is immovably anchored while the device is operating.

The inventions have various advantages over known solutions. How to get along a single winding tape. According to claim 11, a complicated drive system for the Winding core, in which at the same time the roll diameter increasing due to winding increases is not required. Furthermore, by assembling all the necessary elements on the Frame allows easy implementation of the device to a processing machine on the the winding content can be immediately processed.

Fig. 1:

eine Seitenansicht des Aufwickelkernes mit Vorrichtung und Wickelbandführungselementen

Fig. 2;

eine Draufsicht auf Fig. 1

Fig. 3:

eine Vorderansicht von Fig. 1

Fig. 4:

eine teilweise aufgeschnittene Wickelrolle in Vorderansicht

Fig. 5:

eine detailliertere Seitenansicht von Fig. 4

Fig. 6:

eine Seitenansicht des Aufwickelkernes mit Vorrichtung und Wickelbandführungselementen zum Aufwickeln von blockförmigen Druckprodukten

Fig. 7:

eine Vorderansicht von Fig.6

Fig. 8:

eine Seitenansicht des Aufwickelkernes mit Wickelbandführungselementen und direkt über die Bandzuführrolle dem Wickelkern zugeführtes Wickelband

Fig. 9:

eine Vorderansicht der Antriebselemente von Fig. 8

Fig. 10:

eine Seitenansicht des Aufwickelkernes mit Wickelbandführungselementen zum Aufwickeln von blockförmigen Druckprodukten und direkt über die Bandzuführrolle dem Wickelkern zugeführtes Wickelband

Fig. 11:

eine Vorderansicht der Antriebselemente von Fig. 10

The inventions are explained in more detail below using two exemplary embodiments, the figures show:

Fig. 1:

a side view of the winding core with device and winding tape guide elements

Fig. 2;

a plan view of Fig. 1st

Fig. 3:

2 shows a front view of FIG. 1

Fig. 4:

a partially cut winding roll in front view

Fig. 5:

4 shows a more detailed side view of FIG. 4

Fig. 6:

a side view of the winding core with device and winding tape guide elements for winding block-shaped printed products

Fig. 7:

a front view of Fig.6

Fig. 8:

a side view of the winding core with winding tape guide elements and the winding core fed directly over the tape feed roller winding tape

Fig. 9:

8 shows a front view of the drive elements from FIG. 8

Fig. 10:

a side view of the winding core with winding tape guide elements for winding block-shaped printed products and directly over the tape feed roller to the winding core fed winding tape

Fig. 11:

10 shows a front view of the drive elements from FIG. 10

A winding tape 1, which is stored wound on a tape supply roll 2 is gem. Fig. 1 one Winding core 3 supplied. For this purpose, a spring force 4 is pressed onto the tape supply roll 2 Drive belt 5, which is driven by a drive 6, is used to wind the winding belt 1 unwind. The winding tape 1 is a turning roller 13 of a tape feed roller 7 by a Belt drive 8 is driven, supplied. From there it is passed to the winding core 3, which is the winding tape 1 wraps around 360 degrees and drives it at the same time. From the winding core 3 Coming there is a deflection roller 10 driven by a belt drive 9 and a counter roller 11 directed opposite to the product flow supply via a sweeping roller 12 and approximated parallel to the winding tape part 1 running from the turning roll 13 above the tape feed roll 7 again led to the winding core 3 and attached to the fastening device 14 of the winding core 3. Between this attached to the winding core 3 beginning of the winding tape 1 and that of the turning roller 13 on the The tape feed roll 7 around the winding core 3, which is passed on the winding tape part 1, becomes the product stream 15 the winding core 3 wound and stored. In the area between the turning roller 13 and the Tape feed roller 7, the winding tape 1 is slightly convex. For tightening the winding tape 1 and thus a safe storage of the folded sheets of the product stream 15 provide little differently designed output speeds of the drives driven by the drive motor 16. she behave such that the drive speed of the belt drive 9 is greater than that when winding of the belt drive 8 and this is larger than that of the drive 6. When unwinding, i.e. when loading of the subsequent machines, the drive 6 must be faster than the belt drive 8 and this in turn faster as the belt drive 9 run to always an immovable position of the product stream 15 between the To ensure winding tape parts 1. Furthermore, the drive motor 16 with a stepless, is not   Control device shown to adjust the winding speeds on the winding tape 1 to the Feed speeds of the product stream 15 equipped. The required speed differences for the drives 6 and 9 during winding or unwinding, two chain drives 24, 25 reached, which are driven by the drive motor 16. The chain drives overflow with the drive 6, the belt drive 8 and the belt drive 9 connected chain wheels 6 ', 6' ', 8', 8 '' and 9 ', 9' ', which on the drive 6 and belt drive 9 are of different sizes. The different sizes Sprockets 6 'and 6' 'and 9' and 9 '' are for mutual engagement with coupling elements fitted. Also with the drive motor 16 is a slip clutch 26 via coupling elements connected, which drives the tape supply roll 2 when loading subsequent machines.

The device for performing the method is designed so that the winding core 3 over a roll 17 is rotatably arranged on a guide shaft 18. There is one on each side of the winding core 3 Gear 19 and a roller bearing 20 also arranged on the guide shaft 18. Through the Rotation of the winding core 3 on the guide shaft 18 and the almost 360 degrees Wrapping around the winding core. 3 by the winding tape 1 is a slight rolling up of the winding tape 1 possible with the product stream 15 to be secured on the winding core 3. With the growing of the The winding core 3, the roller bearings 20 run on the roller guide 21 and move the winding core 3 in Delivery direction of the product stream 15 further. In order to incline the winding core 3 avoid combing the gears 19 in a rack 22 and thus ensure a clean and uniform winding formation. The device is in its entirety, that is, the drive motor 16 and the Tape roll 2 to the winding core 3, arranged on a frame 23, which is mobile and lockable is trained.

If the winding core 3 has the required or possible amount of printed products from the product stream 15 has closed, it will be closed. For the purpose of unwinding, the device can on the Mobile frame 23 are moved to the corresponding processing machine and Unwinding connected to it, in another example like. Fig. 8 also becomes a Winding tape 1, which is wound on a tape supply roll 2, fed to a winding core 3. It works the winding tape 1 is also used here as a drive belt for the winding core 3. For this purpose, a drive belt 5 pressed by spring force 4 onto the tape supply roll 2, which is driven by a drive 6 is driven, used to unwind the winding tape 1. The drive 6 is with a freewheel 32   provided, interrupted by the drive when winding the printed products on the winding core 3 and the brake 33 is effective. This ensures the band tightening. To avoid Slack in the area of the tape supply roll 2 is one between the drive 6 and the frame 23 Brake 33 arranged. The winding tape 1 is fed via a tape feed roller 7, which is driven by a tape drive 8 is driven, which in turn is fixed on the shaft 34, passed to the winding core 3. This one wraps around the winding tape 1 approximately 360 degrees before passing over a counter roller 11 and one deflection roller 10 driven by a belt drive 9 which is also arranged fixedly on its shaft 35 and also passed over a sweeping roller 12, then again as a winding upper band 31 to the winding core 3 and is fastened to the fastening device 14 of the winding core 3. Between this on the winding core 3 attached start of the winding tape 1 and the tape feed roller 7 around the winding core 3 further guided winding tape part 1, the product stream 15 is wound up on the winding core 3 and stored.

It can be in a device according to claim 11 further winding tapes 1 at intervals next to each other be arranged, each winding belt 1 the function of the lower belt and after one revolution of the winding core 3 which exerts the upper band and all winding bands 1 with a geared motor 16 are driven. This version does not correspond to the number of winding tapes 1 Method claim 1, but the function of the winding tapes 1 is identical. It also enables e.g. when saving plano sheets, when unwinding them without an extra one Investors to load a processing machine directly, i.e. to act as an investor themselves. At the Unwinding the printed products from the winding core 3, the drive 6 runs somewhat faster. Works when unwinding the freewheel 32 on the drive roller 36. In this situation, the brake 33 is due to a freewheel ineffective.

Another variant of the method according to the invention, with which a super-winding winding is shown in Figures 10 and 11. From the tape supply roll 2 is the winding tape 1 by the drive belt 5 driven by the drive 6, as described above. With the Drive 6 is connected to the drive tape roll 36, from which the winding tape 1 acts as an upper tape directly led to the winding core 3 and attached to the fastening device 14. After almost complete After the first rotation of the winding core 3, the winding tape 1 becomes the deflection roller 10 via the counter roller 11 passed, which in turn is firmly connected to the belt drive 9. This runs from the pulley 10 Wrapping tape 1 via the sweeping roller 12 back to the winding core 3. The printed products to be stored become   Via the lower belt 27, also driven by the belt drive 9, fed to the winding core 3 and run on the winding belt 1 coming from the sweeping roller 12, which is now effective as a lower belt, in the wrap. From the sweeping roller 12, the winding tape 1 has a double function for which already It is used as the upper belt and for the new ones in the reel incoming print products it acts as a sub-belt. Is between the counter roller 11 and the sweeping roller 12 the bridging band 30 is effective as an upper band.  

List of reference symbols

1

Wrapping tape

2nd

Tape supply roll

3rd

Winding core

4th

feather

5

Drive belt

6

drive

6 '

Sprocket

6 ''

Sprocket

7

Tape feed roller

8th

Belt drive

8th'

Sprocket

8th''

Sprocket

9

Belt drive

9 '

Sprocket

9 ''

Sprocket

10th

Pulley

11

Counter role

12th

Sweeping roller

13

Turning roll

14

Fastening device

15

Product stream

16

Driving motor

17th

role

18th

Guide shaft

19th

gear

20th

roller bearing

21

Roller guide

22

Rack

23

frame

24th

Chain drive

25th

Chain drive

26

Slip clutch

27

Lower band

28

Upper band

29

Bow handlebar

30th

Bridging band

31

Top wrap

32

Freewheel

33

brake

34

wave

35

wave

36

Drive belt roller

Claims (12)

1. Method for roll-up accumulation of printed products involving continuous winding up/unwinding with a single winding tape (1) spooled from a supply reel (2) onto a core (3), where the winding tape (1) also drives the core (3) acting first as the bottom strand and, after one revolution of the core (3), as the top strand for the next layer to be wound.
2. Method as claimed in claim 1, characterized in that the winding tape (1) is unwound from the supply reel (2) by means of a drive tape (5) moved by a drive (6), guided over a return reel (13) and a feed reel (7) moved by a tape driving mechanism (8) toward the core (3) which is to be rotated anticlockwise, and then away from the core (3) around which it forms a loop of almost 360° and over an opposite reel (11) and deflection reel (10) moved by a tape drive (9) toward a reversing reel (12) from where it runs bark almost in parallel with the length of winding tape (1) receiving the product stream (15) and running off the return reel (13), to the core (3) and a fastening device (14) attaching it to the latter.
3. Method as claimed in claim 1, characterized in that the winding tape (1) unwound from the supply reel (2) is fed directly via the feed reel (7) to the core (3) which is to be rotated anticlockwise and around which it forms a loop, and then to the opposite reel (11) away from the core (3) and over the deflection reel (10) and reversing reel (12) back to the core (3) to which it is permanently attached by the fastening device (14), with the length of winding tape (1) on the core (3) supplied from the reel (2) serving as the bottom strand for the printed products to be accumulated (15), the length of winding tape (1) newly entering the core (3) from the reversing reel (12) acting as the top winding strand (31), a bypass tape (30) bridging the non-looped region of the core (3) between the reversing reel (12) and the opposite reel (11) and a sheet guide (29) guiding the printed products (15) in the area of product feed to the product roll.
4. Method as claimed in claim 1, characterized in that winding tape (1) unwound from the supply reel (2) by the drive (6) is fed directly via the drive reel (36) to the core (3) to be rotated clockwise and around which it forms a loop, and then to the opposite reel (11), the deflection reel (10) and the reversing reel (12) and back from the latter to the core (3) to which it is permanently attached by the fastening device (14), with the length of winding tape (1) from the reversing reel (12) serving as the bottom strand for the printed products to be accumulated, the length of winding tape (1) supplied via the drive reel (36) from the reel (2) acting as a top strand for almost one loop and a bypass tape (30) continuously bridging the non-looped region of the core (3) between the opposite reel (11) and the reversing reel (12).
5. Method as claimed in claims 1 and 2, or 3, or 4, characterized in that the drive (6), tape driving mechanism (8) and tape drive (9) operated by a common drive motor (16) are so designed that, when winding up, the drive speed of the tape drive (9) exceeds that of the tape driving mechanism (8) which in turn runs at a greater speed than the drive (6).
6. Method as claimed in claims 1 and 2, or 3, or 4, characterized in that, when unwinding, the drive speed of drive (6) exceeds that of the tape driving mechanism (8) which in turn runs at a greater speed than the tape drive (9), and characterized in that the core (3) can be braked relative to the frame (23).
7. Method as claimed in claims 2, or 3, or 4, characterized in that the drive motor (16) is provided with a stepless control facility for adjusting the winding-up speed to the speed of the product stream.
8. Method as claimed in claims 3 or 4, characterized in that a sheet guide (29) interacts with a feed opening of a size slightly larger than the thickness of the product stream (15) entering the feeding mechanism which in turn comprises a bottom strand (27) and top strand (28) in the intake region of the core (3), to ensure a reliable feed of the product stream (15) to the core (3), and also characterized in that the drive is synchronized with the drive of the feed reel (7; 36).
9. Method as claimed in claims 1 and 2, or 3, or 4, characterized in that the length of winding tape (1) between the return reel (13) and feed reel (7) receiving the product stream (15) is guided in a slightly convex manner.
10. Method as claimed in claims 1 and 2, or 3, or 4, characterized in that the rolled-up printed products (15) are fed to machinery downstream by drive reversal, the drive (6) and tape drive (9) being equipped with driving chainwheels of varied size ratios 6'/6'' or 9'/9'', and also characterized in that an additional sliding clutch (26) links the supply reel (2) to the drive motor (16).
11. Apparatus for roll-up accumulation of printed products by way of continuous winding up/unwinding using a winding tape (1) spooled from a supply reel (2) onto a core (3), where the winding tape (1) also drives the core (3) acting first as the bottom strand and, after one revolution of the core (3), as the top strand for the next layer to be wound, characterized in that the drive motor (16), core (3) and guides for the winding tape (1) are arranged on a mobile frame (23), the core (3) being rotatably supported on rolls (17) carried on a guide shaft (18) which, on either side of the core, is provided with one gear (19) each interacting with a toothed rack (22), and one antifriction bearing (20) each interacting with guide rollers (21), with the core (3) on the guide shaft (18) freely movable in the conveying direction and the apparatus so arranged that the guide rollers (21) and toothed racks (22) on the side where the printed products enter the product roll are slightly inclined.
12. Apparatus as claimed in claim 11, characterized in that an inclination relative to the intake side of machines downstream is provided for the apparatus when feeding printed products (15) to machinery downstream.