EP0972733A2 - Device for changing the speed of signatures - Google Patents

Abstract

, 55 ), die sich ihrerseits an Kurbelwellen (50, 51) befinden. Die Kurbelwellen (50, 51) rotieren um Achsen (52, 53) bezogen auf die Gestellwände (70, 71), wobei sich die Rotationskörper (22, 23; 24, 25) und die Kurbelwellen (50, 51) mit einer konstanten Winkelgeschwindigkeit ω bewegen.

The invention relates to a device for changing the speed of flat products with a first faster-running conveyor arrangement consisting of belt rolls and belts, and a second slower-running conveyor arrangement consisting of belt rolls and belts, the flat products being transported in each case between the belts of the first and second conveyor arrangements become. In the conveying path of one of the two conveying arrangements (34, 35) a pair of rollers with recesses is provided on the circumference. The rotating bodies (22, 23; 24, 25) move about their respective eccentric axes (54

, 55 ), which in turn are located on crankshafts (50, 51). The crankshafts (50, 51) rotate about axes (52, 53) with respect to the frame walls (70, 71), the rotating bodies (22, 23; 24, 25) and the crankshafts (50, 51) rotating at a constant angular velocity ω move.

Description

The present invention relates to a device for changing the Speed of copies, for example signatures or folded flat Products such as those that are manufactured and processed in a folder.

EP 0 498 068 B1 relates to a folder in which the transport of the Folded copies are made using means of transport, tape rolls and tapes. It is one high-speed first belt arrangement, consisting of upper belts and lower belts Belts are provided between which the folded copy is transported. Furthermore, one with variable speed drivable tape reel assembly provided with while their rotation exactly in phase lying upper reels and lower reels, which the fold copy brought up by the first belt arrangement in the area of the latter Grasp the leading edge and transport it further. Furthermore, a slow-running second Band arrangement is provided, which consists of upper bands and lower bands that capture the folded copy from the tape rolls at its front edge and transport further. The upper and lower band rolls point to their circumference Recesses on, with parts of the tape rolls with a large diameter by a Rubber coating are formed and to dose the force between the tape rolls at least one shaft can be pivoted by means of adjusting elements.

EP 0 256 795 B1 discloses an apparatus for processing sheets, the one Means comprising the blades moving at a first speed can receive, and transported to a conveyor, which by means of a significantly different speed is driven. The facility includes a first rotatable drive element for accelerating and decelerating the blades hand them over to the conveyor at an adequate speed. The first Drive element is driven by a mechanism that is a planetary gear includes which contains a sun gear. A planet gear is arranged so that it is in Operation revolves around the sun gear. A first rotating element is off the axis of the Planet gear attached, but driven by the rotating planet gear and the first drive element is for rotation by moving the first one Rotary element coupled. The first drive element is rotatable on the sun gear axis and stored on the other side of the sun gear. The second drive element is through a second or more second rotary elements are coupled in a rotationally fixed manner, which are arranged in such a way that they have a rotational movement in the opposite direction to the movement of the or every first rotating element. The second drive element is mechanical with a counterweight, which is intended to accommodate changes in the Compensate inertia, which are transmitted to the first drive element. The Arrangement is provided so that the drive elements a predetermined Speed and acceleration profile follow, which is repeated periodically.

There may be one in both of the solutions disclosed in the above documents uncontrolled braking, loss of display accuracy and the Damage to the fold copies come, which is especially true with high Processing speeds occur, as well as with externally light Substrate grammages. The impairments shown are partly due to this even worse if the folded copies of two together in one Conflicting funding institutions can be recorded, such as a funding system for higher speeds and a conveyor system for lower speeds. So can, for example, the leading area of the folded copy already in the Slowdown device may have occurred while the rear area of the Folded copies through the conveyor systems for high speeds, as it were in the Slowing device is pushed in, causing upsetting on Fold copy can come. This is true for the solution according to EP 0 498 068 B1 achieved by cyclically varying the angular velocity of conveyor rollers in order to to achieve a continuous delay of the folded copies, however the variable pulls Speed change dynamic and constantly changing stresses of the Components, which affect the mechanical reliability of the assemblies can.

In view of the prior art shown, the present invention is the Based on the task that occurs when braking flat products To reduce inertial forces as much as possible, so that only the mass of each Braking copy to be braked generates deceleration forces.

According to the invention the object is solved by the features of claim 1.

In further refinements of the idea on which the invention is based, comprises a first, a copy arrangement downstream cylinder arrangement an upper Section and a lower section. The first funding arrangement is quick for me Provide conveyor belts, in the conveyor path delay rollers are included. The high-speed conveyor belts are integrated into their circulation path Drive shafts driven. The circulation routes of the high-speed conveyor belts move gradually apart in the conveying direction of the specimens, so that a Capture of the specimens by delay rollers is possible at the exact time the copies are also released from the high-speed conveyor belts. At the The contact point of the annular segments is their peripheral speed very close to that Speed of the high-speed conveyor belts. Similarly, the slow moving conveyor belts grab the signatures before their rear Section is released by delay belts because of the peripheral speed the slow moving conveyor belts very close to the peripheral speed in the The contact point of both ring-shaped segments is on the braking roller.

The invention is explained in more detail below with reference to a drawing.

Fig. 1

eine Seitenansicht eines Falzapparates mit übereinander angeordneten Exemplarauslagesystemen,

Fig. 2

in detaillierter Ansicht den Auslaufbereich einer schnellaufenden Exemplarfördereinrichtung, innerhalb der Einrichtungen zur Verzögerung der Geschwindigkeit der Exemplare aufgenommen sind,

Fig. 3a bis 3d

unterschiedliche Winkellagen exzentrisch gelagerter Verzögerungseinrichtung,

Fig. 4

eine Darstellung des Antriebes der Verzögerungseinrichtung in gestrecktem Längsschnitt wiedergegeben,

Fig. 5

die Darstellung eines Geschwindigkeitsdiagrammes der Verzögerungseinrichtung, sowie

Fig. 6

die Darstellung eines Geschwindigkeitsdiagramms der Verzögerungseinrichtung mit einer anderen Länge der Belagsektionen als die in Fig. 5 gezeigte.

It shows:

Fig. 1

a side view of a folder with copy delivery systems arranged one above the other,

Fig. 2

a detailed view of the run-out area of a high-speed specimen conveying device, within which devices for delaying the speed of the specimens are included

3a to 3d

different angular positions of the eccentrically mounted deceleration device,

Fig. 4

a representation of the drive of the deceleration device in an elongated longitudinal section,

Fig. 5

the representation of a speed diagram of the delay device, and

Fig. 6

the representation of a speed diagram of the delay device with a different length of the lining sections than that shown in FIG. 5.

Fig. 1 gives the side view of a folder with one above the other Copy delivery systems again.

und 4, 4 auf einen Punkturenzylinder 7 geführt. Zwischen den Zylinderpaaren 3, 3 bzw. 4, 4 können Perforierzylinder 5, 5 aufgenommen sein, welche die Materialbahn 2 derart perforieren, daß eingeschlossene Luftkissen einfacher entweichen können, um die Falzgenauigkeit zu verbessern. Neben dem Punkturenzylinder 7, der eine Anzahl von Punkturen 6, 6a, 6b und 6c aufnimmt, ist ein Schneidzylinder 9 vorgesehen, der mit Schneidmessern 8, 8' ausgestattet ist, um von der einlaufenden Materialbahn 2 jeweils Exemplare abzutrennen.A web of material 2 entering a folder via a former 1 is fed via pairs of pull rollers 3, 3

and 4, 4 led to a puncture cylinder 7. Between the cylinder pairs 3, 3 or 4, 4 can perforating cylinders 5, 5 be included, which perforate the material web 2 in such a way that enclosed air cushions can escape more easily in order to improve the folding accuracy. In addition to the puncture cylinder 7, which receives a number of punctures 6, 6a, 6b and 6c, a cutting cylinder 9 is provided which is equipped with cutting knives 8, 8 'in order to separate copies from the incoming material web 2.

Although used in a folder with punctures, the invention may equally well a pointless folder, before the copies were issued in Paddle wheel arrangements, for example, are used, as well Plano cross-cutters, for cutting devices within inline finishing Systems as well as in sheet-fed rotary printing machines or copiers. In addition to the Braking specimens can also be subjected to accelerations or from a formation in a row into a scale-like formation be transferred.

In addition to the puncture sets 61, 6b and 6c, on the puncture cylinder 7, Folding knife 10a, 10b and 10c added, with which the on the circumference of the Puncture cylinder 7 recorded copies in folding jaws 11a, 11b and 11c and 11d of a jaw cylinder 12 can be pushed in in this way to get one or more cross folds.

Behind the jaw cylinder 12, the continuously formed stream of copies is divided into an upper and a lower flow. An upper and a lower section 34 and 35 of high-speed conveyor belts 14, 15 are arranged downstream of the folding jaw cylinder 12. Integrated in this upper and lower section 34, 35 are deceleration rollers or deceleration rollers 22, 23; 24, 25. In one embodiment variant of the invention, the deceleration rollers or deceleration rollers 22, 23; 24, 25 are also located outside the upper and lower sections 34, 35. Behind the upper and lower sections 34, 35 are slower conveyor belts 36, 37; 38, 39 switched. In the conveying path of these slow conveyor belts 36, 37 and 38, 39 are respectively an upper and a lower second longitudinal folding device 13, 13 provided which provide the folded copies with a second longitudinal fold and insert them into, for example, provided paddle wheels, by means of which the copies thus folded can then be transported further and optionally further processed.

As can be seen from the illustration according to FIG. 1, the upper one comprises Section 34 high-speed conveyor belts 14, 15, while the lower section 35 high-speed conveyor belts 16, 17 includes. In the path of the high-speed Conveyor belts 14, 15 of the upper section 34 are first and second pull rollers 18, 19, respectively integrated; in the lower section 35 these are drawing rollers with the reference number 20 and 21 provided. The deceleration rollers 22, 23; 24 and 25 of the top and bottom Sections 34 and 35 are provided with covering sections 60, 61, which do not cover the whole Cover the circumference of the retard rollers 22, 23, 24, 25. The fast-moving Conveyor belts 14 15; 16, 17 spread in their slower running Conveyor belts 36, 37; 38, 39 assigning something to what the high-speed conveyor belts 14, 15, 16, 17 just as far from the Remove the specimen transport level so that the specimens - after they are removed from the Retard rollers 22, 23; 24, 25 have been recorded - exclusively by these are seized and no more contact with the high-speed conveyor belts 14, 15; 16, 17 more exists. The high-speed conveyor belts 14, 15, 16, 17 are by means of Drive shafts 30, 31 for the upper section 34 and with the drive shafts 32, 33 for the lower section 35 driven at the speed corresponding to the conveying speed of the Copies on the jaw cylinder 12 corresponds. Using this configuration (see also Fig. 2) can the distances between individual versions of the copies in the various conveyors or slowdowns can be chosen so that copies are only taken by one of the conveyor and deceleration systems while the rear sections are just about 20 mm long become. The transitions occurring between the individual funding institutions could also by another belt guide for the slow-moving conveyor belts 36, 37 the pull rollers 18, 19 are realized; also an attachment itself in a horizontal Direction of guide plates would be conceivable.

In the folder combination shown in FIG. 1, two second longitudinal folding devices 13 and 13 are used used, on the one hand, to reduce their mechanical loads during operation and, on the other hand, to reliably handle the product flow to be processed at full load. Since the two second longitudinal folding devices 13, 13 work at a lower speed compared to the cross folding cylinders, a slowdown in the conveying speed of the longitudinally to be folded copies is required. The folder configuration shown allows production in magazine mode if the copies taken from the folder cylinder 12 are passed through both sections 34, 35 in parallel, or production in tabloid mode if only the upper or only the lower section 34 or 35 convey the copies to the display .

2 shows a detailed view of the outlet area of the high-speed conveyor belts 14, 15, - here, for example, the upper section 34 - inside of a facility to change the speeds of the specimens is integrated. In an embodiment not shown here, the Device for changing the speed also outside the outlet area of the high-speed conveyor belts.

A specimen that reaches the upper section 34 from the periphery of the jaw cylinder 12 is gripped by the high-speed conveyor belts 14, 15. The specimen passes the first and second pull rollers 18, 19 of the upper section 34, and is taken over by the covering sections 60, 61 at the same time that its trailing end leaves the gap between the pull rollers 18, 19 of the upper section 34. Since the high-speed conveyor belts 14, 15 gradually move apart behind the gap between the first and second pull rollers 18, 19, the specimens are no longer affected by them and can be braked by the covering sections 60, 61 received on the deceleration rollers 22, 23. The release of the specimens by the delay rollers 22, 23; 24, 25 takes place at the same point in time at which the leading end of the specimens is gripped by the slow-moving conveyor belts 36, 37 which run around the pickup rollers 26, 27. The system formed from the slow-moving conveyor belts 36, 37 transports the copies to the respective second longitudinal folding devices 13, 13 , as already described in Fig. 1. Through the coordinated, consecutive copy release and the simultaneous copy release through the respective previous conveyor system, a conflict-free continuous delay of the copies can be achieved.

Fig. 2 also shows a possibility of employing an upper deceleration roller 22 an underlying deceleration roller 23, the roller with the mentioned Covering sections 60, 61 are provided. The upper retard roller 22 is on one Pin 65 pivotally received on the carrier 66. The carrier 66 can in the direction of Double arrow can be moved up and down. The carrier 66 rests in the position shown the adjustable stop 67. By means of the articulated on the adjusting pin 64 of the carrier 66 Actuating cylinder 62 can prevail in the gap between the covering sections 60 and 61 Force can be adjusted. Furthermore, by means of the actuating cylinder 62, mounted in the Abutment 63 provides access to the high-speed conveyor belts 14, 15 be improved.

In Fig. 2, the drive gears 44 and 45 are indicated, via which the Retard rollers 22, 23 are driven. As in connection with Fig. 4 still will be explained in more detail, are also on the delay rollers 22, 23 each inside and externally toothed portions 57 and 59 are provided by their engagement with each other the roll jackets of the deceleration rolls 22, 23; 24, and 25 in relation to the axes, on which they are recorded, a relative speed can be impressed. The gear wheels 44, 45 mesh with the gear wheels 42, 43, see illustration according to FIG. 4. 2 shows that the deceleration rollers 23, 23 are in a slowly opening gusset because the fast-running ones Conveyor belts 14, 15 gradually diverge and so the specimens shortly after theirs Takeover by the decelerating rollers 22, 23 from the high-speed ones Conveyor belts 14, 15 are released. Of these, they are at the time of Transfer to slow-moving conveyor belts 36, 37 released. Waves 30, 31 serve to redirect the high-speed conveyor belts 14, 15 and the slow running conveyor belts 36, 37 and to minimize the distance to be bridged between the transport systems. To bridge the gap between the Transport systems can also be provided with stationary guides or slowly Running conveyor belts 36, 37 can also be deflected around the pull rollers 18, 19 be performed.

In Fig. 3 in sequences a, b, c and d is the transfer of a folded copy 100 by the Delay roller pair 22, 23 shown.

der Belagsektionen 60, 61 senkrecht gegenüberliegen. In Fig. 3 a sind ferner die Wellenabschnitte 52, 54 und deren versetzte Lage zueinander dargestellt. In Fig. 3a beginnt die kontinuierliche Verlangsamung der Falzexemplare 100, in Fig. 3 b dauert diese an, in der Darstellung gemäß Fig. 3 c endet sie. Dabei verschiebt sich der Erfassungspunkt zwischen den Belagsektionen 60, 61 kontinuierlich von 0 in fig. a über p in b zu 0 in Fig. c. In Fig. c hat das Falzexemplar 100 die Abbremsung soweit durchlaufen, daß der Falzrücken unmittelbar vor der Erfassung durch die langsam laufenden Transportbänder 36, 37 steht. In fig. c verläßt das Falzexemplar 100 den Spalt in 0 zwischen den Belagsektionen 60, 61 mit der Geschwindigkeit der langsam laufenden Transportbänder 36, 37. In fig. 3 d hat das Falzexemplar 100 in q den Erfassungspunkt verlassen und ist nunmehr ausschließlich der Erfassung durch die langsam laufenden Transportbänder 36, 37 unterworfen, da es von den Belagsektionen 60, 61 vollständig freigegeben wurde.In the state shown in FIG. 3a, the fold copy 100, which is transported with the fold back first in the conveying direction, is gripped by the covering sections 60, 61 when the fold copy 100 leaves the gap between the cylinders 18, 19 (FIG. 2). The fold copy 100 is detected by the covering sections 60, 61 at the conveying speed of the high-speed conveyor belts 14, 15; here at the time when points 0 and 0

of the covering sections 60, 61 lie vertically opposite one another. In Fig. 3 a, the shaft sections 52, 54 and their offset position to each other are also shown. The continuous slowdown of the folded copies 100 begins in FIG. 3a, this continues in FIG. 3b, and ends in the illustration according to FIG. 3c. The detection point between the covering sections 60, 61 shifts continuously from 0 in fig. a over p in b to 0 in Fig. c. In Fig. C, the fold copy 100 has passed the braking so far that the fold back is immediately before the detection by the slow-moving conveyor belts 36, 37. In fig. c, the folded copy 100 leaves the gap in 0 between the covering sections 60, 61 at the speed of the slow-moving conveyor belts 36, 37. In fig. 3 d has the fold copy 100 in q leave the detection point and is now only subjected to detection by the slow-moving conveyor belts 36, 37, since it has been completely released by the covering sections 60, 61.

Fig. 4 shows the drive configuration of the deceleration rollers in longitudinal section.

A crankshaft-shaped shaft 50 consists of a first shaft section 52.1 with an axis of rotation 52, with a cranked section 54, with an axis 54 and a second shaft section 52.2 with the rotation axis 52 already mentioned. This upper crankshaft 50 corresponds to a lower crankshaft 51, which likewise comprises a first section 53.1 with rotation axis 53, a cranked section 55 with axis 55 and a second section 53.2 with rotation axis 53. The two crankshaft-shaped shafts 50, 51 are rotatably located in the side walls 70, 71 of the folder. The deceleration rollers 22, 23 are rotatably mounted on the crankshafts 50 and 51. They move around their eccentricities 54 , 55 . The sections 52.1, 54, 52.2 and 53.1, 55, 53.2, which represent the crankshafts 50, 51, are driven by a gear train 42, 44, 45 and 43, while the roller shells of the two decelerating rollers 22, 23 by an internal / external toothing 56 , 58 and 57, 59 are driven. Via a gear train running in parallel, the gears 46, 48 49 and 47, internal gears 56, 57 provided with a sleeve attachment are driven, so that the meshing external gears 58 and 59 can rotate relative to the offset shaft sections. The crankshafts 50, 51 are driven such that they rotate counter to the conveying direction of the copies 100, while the roller shells of the decelerating rollers 22, 23 move about the offset shaft sections 54, 55 in the conveying direction of the folding copies 100. As can further be seen from FIG. 4, the covering sections 60, 61 are attached in strips next to one another on the circumference of the roll shells of the decelerating rolls 22, 23, so that braking - or, if desired, and after an appropriate changeover, also acceleration - narrower fold copies 100 is achieved can be.

R =

Radius der Anordnung von Verzögerungswalze 22 und Belagsektion 60,

e₁ =

Exzentrizität zwischen Achse 52 der Wellenabschnitte 52.1, 52.2 und versetzten Achsabschnitt 54,

e₂ =

Exzentrizität zwischen geometrischem Mittelpunkt 80 zwischen Belagabschnitten 60, 61 auf den Verzögerungswalzen 22, 23 und den Rorationsachsen 54 , 55 des ringförmigen Segmentes 60, 61 auf den Verzögerungswalzen 22, 23,

ω =

Absolutwert der Winkelgeschwindigkeit der Kurbelwellen 50 in Bezug auf die Seitenwände 70, 71

t =

Zeit

The angular velocity of the roller shells of the decelerating rollers 22, 23 relative to the crankshaft 50 is twice the angular velocity of the crankshaft 50 with respect to the side walls 70, 71. The linear velocity of the outer diameter of the decelerating roller 22 and lining section 60 is determined from: V = ω (R + 2 e cos ω t); e = e 1 + e 2nd with e ₁ = e ₂ where

R =

Radius of arrangement of deceleration roller 22 and pad section 60,

e ₁ =

Eccentricity between axis 52 of shaft sections 52.1, 52.2 and offset axle section 54,

e ₂ =

Eccentricity between the geometric center 80 between the covering sections 60, 61 on the deceleration rollers 22, 23 and the rotation axes 54 , 55 of the annular segment 60, 61 on the deceleration rollers 22, 23,

ω =

Absolute value of the angular velocity of the crankshafts 50 with respect to the side walls 70, 71

t =

time

During a full revolution of the retard rollers 22, 23 with respect to the Sidewalls 70, 71 (two revolutions, based on the crankshaft 50 follows the linear one Outer diameter speed of the deceleration roller assembly 22 and pad section 60 of a complete sine curve from A 'to C' (see Fig. 5) and once reaches the maximum and once the minimum value. To delay one Folded copy 100 uses half A'B 'of full cycle A'C'. To this The purpose is only half of the circumference of the roll shells of the delay rolls 22, 23 or 24, 25 provided with covering sections 60, 61

The illustration of the speed diagram according to FIG. 5 shows how the folding copies 100 are braked; With a length of the covering sections 60, 61 on the roller shells according to FIG. 5 corresponding to approximately half the circumference of the deceleration rollers, the section of the sine curve of A till B be used to slow down the folded copies 100. In diagram A, A denotes the entry speed of the folded copies, and speed A the folded copies 100 are detected before they move to the speed B. in accordance with the sinusoidal course of the curve be braked and at speed B are transferred to the slow-moving conveyor belts 36, 37. The synchronization of the angular velocity is coordinated with the conveying frequency of the folding copies 100 in such a way that the crankshafts 50, 51 or the offset shaft sections 54, 55 complete one revolution, while a folding copy runs from the high-speed belts 14, 15 to the slow-running belts 36, 37 is transported. Alternatively, in the case of processing shorter fold copies 100, the crankshafts 50, 51 and 54, 55 can rotate at double speed as briefly outlined above, while only one fold copy 100 is transported from the fast-moving conveyor belts 14, 15 to the slow-moving conveyor belts 36, 37 . In this case, the deceleration device travels a full revolution without the folding copy 100 being influenced.

6 finally shows an embodiment of the device with covering sections 60 , 61 , in which, according to graphs B, C, only part of the sinusoidal speed curve of the deceleration rollers is used for braking, as may be necessary, for example, with shorter lengths of the folded copies 100. Several devices for changing the speed (22, 23; 24, 25) could also be connected in series in order to achieve a targeted slowdown and / or a scaled flow of specimens.

REFERENCE SIGN LIST

1

Former

2nd

Material web

3rd

Pull roller

3rd

Pull roller

4th

Pull roller

4th

Pull roller

5

Perforating cylinder

5

Perforating cylinder

6a

Punctures

6b

Punctures

6c

Punctures

7

Pinpoint cylinder

8th

Cutting knife

9

Cutting knife

10a

Folding knife

10b

Folding knife

10c

Folding knife

11a

Jaws

11b

Jaws

11c

Jaws

11d

Jaws

12th

Jaw cylinder

13

upper second longitudinal fold

13

lower second longitudinal fold

14

first upper high-speed belts

15

first lower high-speed belts

16

second upper high-speed belts

17th

second lower high speed belts

18th

first pull roller upper section

19th

second pull roller upper section

20th

first pull roller lower section

21

second pull roller lower section

22

Retard roller above

22

23

Retard roller above

24th

Deceleration roller below

25th

Deceleration roller below

26

free role

27

free role

28

free role

29

free role

30th

free role

31

free role

32

free role

33

free role

34

upper section

35

lower section

36

first upper slow conveyor belts

37

first lower slow conveyor belts

38

second upper slow conveyor belts

39

second lower slow conveyor belts

40

axis

41

axis

42

gear

43

gear

44

gear

45

gear

46

gear

47

gear

48

gear

49

gear

50

upper crankshaft

51

lower crankshaft

52

Axis of rotation of sections 52.1, 52.2

52.1

upper first section

52.2

upper second section

53

Rotation axis of sections 53.1, 53.2

53.1

lower first section

53.2

lower second section

54

offset shaft section above

54

axis

55

offset shaft section below

55

axis

56

Internal teeth

57

Internal teeth

58

External teeth

59

External teeth

60

Base section

61

Base section

62

Actuating cylinder

63

Abutment

64

Adjusting pin

65

Cones

66

carrier

67

adjustable stop

68

axis

69

Cones

70

Side wall

71

Side wall

80

Geometric center between pad section 60 and roller 22

81

Geometric center between pad section 61 and roller 23

100

Fold copy

R:

Radius of base section 60, 61

e1:

Eccentricity between axes 52, 53 and 54 , 55

e ₂ :

Eccentricity between geometric center 80, 81 and 54 , 55

ω:

Angular velocity

t:

time

Claims (22)

Device for changing the speed of flat products, with a first faster-running conveyor arrangement consisting of belt rolls and belts, and a second slower-running conveyor arrangement consisting of belt rollers and belts, the flat products being transported in each case between the belts of the first and second conveyor arrangements and one in the conveyor path the two conveyor arrangements are provided with a pair of rollers with recesses on the circumference,
characterized by
that lining sections (60, 61) are provided on a rotating body arrangement (22, 23; 24, 25), these having a constant angular velocity ω, without additional dynamic influences occurring. Device for changing the speed of flat products according to claim 1,
characterized by
that a first conveyor arrangement (14, 15; 16, 17) comprises an upper section 34 and a lower section (35). Device for changing the speed of flat products according to claim 2,
characterized by
that the upper section (34) and the lower section (35) are assigned to a folding jaw cylinder (12) of a folding apparatus. Device for changing the speed of flat products according to claim 2,
characterized by
that conveyor arrangements (14, 15; 16, 17) are designed as high-speed conveyor belts, in the conveyor path of which deceleration rollers (22, 23; 24, 25) are accommodated. Device for changing the speed of flat products according to claim 4,
characterized by
that the high-speed conveyor belts (14, 15; 16, 17) are driven via drive shafts (30, 31; 32, 33) integrated in their conveying path. Device for changing the speed of flat products according to claim 4,
characterized by
that the conveying paths of the high-speed conveyor belts (14, 15; 16, 17) seen in the conveying direction of the specimens (100) move apart. Device for changing the speed of flat products according to claim 4,
characterized by
that one (22, 24) of the delay rollers of the pairs of delay rollers (22, 23; 24, 25) is movable relative to the other delay roller (23, 25). Device for changing the speed of flat products according to claim 7,
characterized by
that the respective relatively movable deceleration roller (22, 24) are received on a movable support (66). Device for changing the speed of flat products according to claim 7,
characterized by
that the positioning force of the relatively movable retard rollers (22, 24) on stationary retard rollers (23, 25) is adjustable by means of an actuating cylinder (62). Device for changing the speed of flat products according to claim 8,
characterized by
that the pivoting path of the support (66) about a pin (65) can be limited by an adjustable stop (67). Device for changing the speed of flat products according to claim 4,
characterized by
that the delay rollers (22, 22; 24, 25) are provided on their circumference with a covering section (60, 61). Device for changing the speed of flat products according to claim 1,
characterized by
that the high-speed conveyor belts (14, 15; 16, 17) and the slow-speed conveyor belts (36, 37; 38, 39) are deflected around common axes 840, 41) in order to define the transition area between the high-speed conveyor belts (14, 15; 16, 17) and the slow-moving conveyor belts (36, 37; 38, 39). Device for changing the speed of flat products according to claim 1,
characterized by
that the deceleration rollers (22, 23; 24, 25) are each received on shaft sections (54, 55) arranged eccentrically to axes of rotation (52, 53). Device for changing the speed of flat products according to claim 13,
characterized by
that on the offset shaft sections (54, 55) mounted roller shells of the deceleration rollers (22, 23; 24, 25) have a drive (56, 58; 57, 59) overlapping the drive of the offset shaft sections (54, 55). Device for changing the speed of flat products according to claim 13,
characterized by
that external gears (58, 59) formed on the roller jackets of the deceleration rollers (22, 23; 24, 25) rotate in driven internal gears (56, 57). Device for changing the speed of flat products according to claim 13,
characterized by
that the roller shells of the deceleration rollers (22, 23; 24, 25) are driven by toothed belts. Device for changing the speed of flat products according to claim 13,
characterized by
that the roller jackets of the deceleration rollers (22, 23; 24, 25) are each assigned individual drives. Device for changing the speed of flat products according to claim 13,
characterized by
that the angular velocity of the roller jackets of the deceleration rollers (22, 23; 24, 25) is twice the angular velocity of the offset shaft sections (54, 55). Device for changing the speed of flat products according to claim 11,
characterized by
that on the circumference of the roll shells of the deceleration rolls (22, 23; 24, 25) several covering sections (60, 61) are accommodated lying side by side. Product transport device for the delivery of flat copies in a folder in rotary printing presses with a device for changing the speed of flat products, with a first faster-running conveyor arrangement consisting of belt rolls and belts, and a second slower-running conveyor arrangement consisting of belt rollers and belts, the flat products each between the Belts of the first and second conveyor arrangement are transported and a pair of rollers with recesses on the circumference is provided in the conveyor path of one of the two conveyor arrangements,
characterized by
that the flat products to be influenced in their speed are continuously conveyed, and at a time only by one of the conveyor arrangements (14, 15; 16, 17; 22, 23; 24, 25; 36, 37; or 38, 39 ) are recorded. Device for changing the speed of flat products, with a first faster-running conveyor arrangement consisting of belt rolls and belts, and a second slower-running conveyor arrangement consisting of belt rollers and belts, the flat products being transported in each case between the belts of the first and second conveyor arrangements and one in the conveyor path the two conveyor arrangements are provided with a pair of rollers with recesses on the circumference,
characterized by
that the rotating components of the device for changing the speed have a constant angular speed ω and do not introduce any dynamic influences into the system, the crankshafts (50, 51) and axes (52, 53) with respect to the side walls (70, 71) rotate and the deceleration rollers (22, 23; 24, 25) about their axis of rotation (54

, 55 ) rotate. Device for changing the speed of flat products (100) with rotating bodies (22, 23; 24, 25) with covering sections (60, 61) on the circumference,
characterized by
that the rotating bodies (22, 23; 24, 25) rotate about their respective eccentric axes (54 , 55 ), which in turn are located on crankshafts (50, 51), which rotate on axes (52, 53) with respect to the frame walls (70, 71) and the rotating bodies (22, 23; 24, 25) and the crankshafts ( 50, 51) with constant angular velocity ω.

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