EP0760349B1 - Device for removing trimmed strips from their perforating needles - Google Patents

Description

The invention relates to a device for removal of those located on pin needles of a cylinder Trim strips according to the generic term of Claims 1 or 2.

DE 28 34 696 C2 shows a combined cutting and Folding device. Here a folding knife is needling Puncture needle trimming on a trimming strip. The Trim strips are each made from a single one cut off printed paper web and such needled onto a rigid stripping device passed by. This is the trim strip captured laterally, pressed against the puncture and finally removed from it.

DE 29 31 968 B1 discloses a rotating Brush for stripping on pin needles to remove needled cut strips. The bristles of the rotating brushes capture the trim strips on the long side and press it against the Puncture needles so that they are subject to bending are going to eventually get them from the pin needles to strip off.

US 38 93 359 A describes a device for Remove trim strips. Are on Scraper pins located arranged.

To hold trim strips with suction air and then using blowing air from a cutting cylinder to push away is by DE 40 23 257 C2 and DE 42 29 699 A1 known. However, with these Do not use the trim strips Punctures held and transported, so that at transport of the trim strips using punctures problems are not present.

The generic DE 30 30 705 A1 is one of a jaw cylinder with circumferential ones Knives and a knife carrier cylinder Smooth cutting device known, the knife interact like a silhouette and from one Signature one running transversely to the direction of transport Cut off trimming or waste strips. This Trim strip is from on the knife carrier cylinder pin needles located and one in Suction device downstream of the peripheral area fed.

Disadvantageous when transporting these trim strips Suction device is that on the puncture needles needled trim strips due to a large Centrifugal effect of the rotating at high speed Knife carrier cylinder the puncture needles prematurely leave, which leads to congestion and thus disturbances when Removal of the trim strips can result.

The invention has for its object a Device for the safe removal of trim strips of pressure carriers from a high speed rotating cylinder, especially a knife cylinder a scissor-cutting device.

This object is achieved by the features of the characterizing part of claims 1 or 2 solved.

The advantages that can be achieved with the invention exist especially in that the trim strips reliably up to a predetermined location, e.g. B. one Suction device are promoted without the To leave puncture needles prematurely. On Remove the trim strips from the specially trained puncture needles is done quickly movable ejector or compressed air at the intended location, so that the trim strips are removed in the correct position he follows; e.g. B. Feeding to a Disposal facility. You can also Trim strips of small width reliably removed become. A grid-shaped guide device prevents wrapping a rotating ejector carrier with Trim strips. The punctures are when stripped the trimming strip from them doesn't bend claimed.

Fig. 1

einen Querschnitt durch eine Vorrichtung;

Fig. 2

eine Darstellung einer erfindungsgemäßen Vorrichtung mit einer ersten Ausführungsvariante eines Zylinders in einer ersten Arbeitsstellung vor einem Abstreifvorgang und in einer zweiten Arbeitsstellung nach einem Abstreifvorgang;

Fig. 3

eine Querschnitt durch einen Zylinder in einer zweiten Ausführungsvariante;

Fig. 4

eine Ansicht B nach Fig. 3;

Fig. 5

einen Querschnitt durch einen Zylinder in einer dritten Ausführungsvariante;

Fig. 6

eine Darstellung des Zusammenwirkens der Abstreiferfinger der Abstreifeinrichtung mit einer gitterförmigen Leiteinrichtung sowie den Punkturnadeln des Zylinders;

Fig. 7

eine schematische Darstellung des Kämmens der Abstreiferfinger der Abstreifeinrichtung in einer konkaven Ausnehmung des Zylinders in zwei Arbeitsstellungen;

Fig. 8

eine schematische Darstellung des Querschnittes eines Schneidmessers mit Punkturnadeln sowie einer Spitze eines Abstreiferfingers nach dem erfolgten Abstreifen eines Beschnittstreifens.

An embodiment of the invention is shown in the drawing and will be described in more detail below. Show it

Fig. 1

a cross section through a device;

Fig. 2

an illustration of a device according to the invention with a first embodiment of a cylinder in a first working position before a stripping process and in a second working position after a stripping process;

Fig. 3

a cross section through a cylinder in a second embodiment;

Fig. 4

a view B of FIG. 3;

Fig. 5

a cross section through a cylinder in a third embodiment;

Fig. 6

a representation of the interaction of the stripper fingers of the stripping device with a grid-shaped guide device and the pin needles of the cylinder;

Fig. 7

a schematic representation of the combing of the stripper fingers of the stripping device in a concave recess of the cylinder in two working positions;

Fig. 8

is a schematic representation of the cross section of a cutting knife with puncture needles and a tip of a scraper finger after stripping a trimming strip.

A device for removing puncture needles 24 a cylinder 2 of needled trim strip 84; 86 of a print medium, e.g. B. Paper consists of one rotating scraper 1, which with the upstream cylinder 2 interacts. A Cutting knife bar 21 of the cylinder 2 can with Counter-cutting blades 44; 46 one Counter knife cylinder 3 cooperate (Fig. 1).

The rotating scraper device 1 consists of a cylindrical rotating scraper finger carrier 4, e.g. B. a shaft 4, which on its circumference in axially parallel direction a plurality in each case clear distance b spaced apart Wiper finger 6 has.

The wiper fingers 6 have an approximately L-shape and are with their foot 7 or the short leg by means of screws 8 on a flat surface of the shaft 4 secured against rotation. A free end 9 of a long Leg 5 of the wiper finger 6 protrudes radially Outside. The wiper fingers 6 are the same length and can be made of metal or plastic.

The free end 9 of each wiper finger 6 can be V-shaped or be fork-shaped (Fig. 6) to a To grasp puncture needle 24.

During the rotation of the shaft 4 around her Longitudinal axis of rotation 11 circumscribe the free ends of the Scraper fingers 6 each have a circular path 12 with a Radius r1 with the origin on the longitudinal axis of rotation 11. The circular paths 12 are spaced apart arranged wiper fingers 6 fall with a Envelope 10 together, which also has the radius r1 having.

According to a second embodiment, instead of One-piece scraper finger 6 described above Scraper fingers close to each other arranged side by side on the shaft 4, d. H. the Scraper finger is made in two parts. This Distance is slightly larger than the largest diameter of the Puncture needle 24. The width of the scraper fingers this variant can be smaller, e.g. B. half the width of the wiper fingers 6 after the first embodiment. The fork-like trained ends 9 of the wiper fingers 6 have during the removal of the trim strips 84; 86 one lateral distance to the puncture needle 24. This lateral distance from "just the puncture needle 24th not grazing or not touching ", e.g. 0.1 mm, to range to a distance of several millimeters. The fork-like ends 9 reach at least up to half of the Diameter of the puncture needle 24. However, you can Longer, d. H. about the diameter of the puncture needle 24 addition, be carried out to "tear through" the Trim strips 84; To prevent 86.

The cylinder 2 is z. B. massive and has one or more, e.g. B. three at a first Embodiment on his with a radius r3 around his Longitudinal axis of rotation 36 formed circumference 14 regularly distributed rows 16; 17; 18 with several each side-by-side drive-through depressions 15 for the wiper fingers 6. There are e.g. B. twenty Drive-through wells 15 per row 16; 17; 18 in spaced axially parallel direction of the cylinder 2 arranged side by side. The drive-through recesses 15 correspond with the stripper fingers 6 in position and Number. They "comb" temporarily and without contact them.

Each drive-through recess is from a central angle ALPHA, e.g. B. included of 65 °. The cross section each drive-through recess 15 can have any shape, e.g. B. lens or rectangular shape. The drive-through well 15 or the drive-through area must, however, each one to the respective circular path 12 of the stripper finger 6 adapted Depth t, width d and length l so that the Scraper fingers 6 can drive them through.

The cylinder 2 carries - seen in the clockwise direction - on Early 19 z. B. the series 16 of drive-through wells 15 a crossing the drive-through recesses 15 Cutting knife bar 21 with a cutting edge 22. Die Cutting edge 22 protrudes a few millimeters, d. H. One to two millimeters over the circumference 14 of the cylinder 2 out. In addition, a pin needle bar 23 with a series of pin needles arranged side by side 24 arranged so that there is as little as possible Distance to the cutting edge 22 results and they to each other run in parallel. The pin needle bar 23 is in advantageously with the cutting knife bar 22 combined. That is, both strips 21; 23 are in one piece trained (Fig. 8). This allows a small distance between the puncture needle 24 and the cutting edge 22 be achieved. Both strips 21; 23 are on cylinder 2 so attached that the extensions of their vertical axes 26; 27 the circumference 14 of the cylinder 2 as a parallel Cut secants (Fig. 2).

The puncture needle bar 23 is comb-shaped and has a clear distance d over its entire length spaced tines 28. They are used for Overlay of trim strips 84; 86. Gaps 29 between the tines 28 each hold one Puncture needle 24 and for contactless driving through each a scraper finger 6. Each puncture needle 24 has below its tip 31 one or more conical "barbs" 32. The puncture needles 24 are by means of a thread on their foot 33 in a Threaded hole screwed into the base 34 of the gap 29. The tip 31 of each puncture needle 24 projects around one Amount f, e.g. B. two to four millimeters over the circumference 14 of the cylinder 2.

Each puncture needle 24 is a scraper finger 6 assigned. With each revolution of the cylinder 2 to its Longitudinal axis of rotation 36 describe the tips 31 of the Puncture needles 24 each have a circular path 37 with a Radius r2 (Fig. 8), so that a total of a lateral surface 45 arises.

A connecting line 64 through the origins 11; 36 of the Circles 12; 37 with the radii r1; r2 has one Distance c of the origins 11; 36 on. The location of the circles 12; 37 to each other is determined as follows: r2 + r1> c> | r1 - r2 |. An arrangement of the circles 12; 37 according to this relationship shows that the two circles 12; 37 have the intersections A and B. Intersection A is the point at which the two circles 12; 37 at Cut convergence. Intersection B is the point in which the two circles 12; 37 at Cut apart. A secant 89 through the Intersection A and B intersect from both circles 12; 37 segments 92; 91 from. The secants thus formed two segments 91; 92 fall together, so that adjacent segments 91; 92 a lenticular Minimum cross section of the necessary of the circular cylindrical surface lines 10; 45 limited Pass-through space 15 form (FIG. 7). In practice, however the drive-through area is made somewhat larger.

With the combined cutting knife and Pinpoint needle bar 21; 23 are the gaps 29 in both Direction of the circumference 14 as well as in the direction of the Cutting knife bar 21 open side facing away. As a result, the wiper fingers 6 a "non-contact combing" with the needle 24 enables.

According to a second embodiment variant (FIGS. 3 and 4) are instead of the first variant of the Cutting knife cylinder 2 provided rows 16; 17; 18th of drive-through wells 15 with several rings 40 intermediate ring grooves 41 of a depth t arranged. The rings 40 and the ring grooves 41 run coaxial to the longitudinal axis of rotation 36 of the Cutting knife cylinder 2 with an outer radius r3 or a radius r. The rings 40 have a width b1 and are arranged at a clear distance d from each other.

A cutting knife and already described above Pinpoint needle bar 21; 23 is in the same version and Function and position attached to the cutting knife cylinder 2.

In a third embodiment variant (Fig. 5) of the Cutting knife cylinder 2 protrudes the cutting knife and Pinpoint needle bar 21; 23 by the amount "t" over the Cylinder jacket 43 with the radius r out. The Cutting knife and puncture needle bar 21; 23 is the same designed as in the second embodiment. All other functions are as described above.

The counter-cutting knife cylinder 3 carries on its circumference counter-cutting blades 44; 46 which in counter-cutter knife holders 47; 48 are held. In cooperation with the Counter-cutting knife 44; 46 each with the cutting edge 22 of the cutting knife bar 21 is a so-called "Paper cut" generated. The counter-cutting knife cylinder 3 is designed as a combined cylinder. Except the Counter-cutting blades 44; 46 are also known cam levers 52; 53 intended.

The number of jaws 52; 53 and counter-cutting knife 44; 46 are the same; e.g. B. five each.

Between the cylinder 2 and the stripping device 1 is a guide device 54 for trimming strips arranged (Fig. 2 and 6). The control device 54 consists of side by side with a clear distance g arranged guide rods 56. The clear distance g between the guide rods 56 is dimensioned so that the wiper fingers 6 between them without contact drive through.

The guide rods 56 are 57 with their first straight end attached to a bracket 58 fixed to the side frame. The Bracket 58 is, for. B. from each other screwable clamping pieces 59; 61, each spaced apart on a side frame fixed Traverse 62 can be clamped. Each upper clamp 59 carries z. B. a first straight end 57 of a guide rod 57. The straight end 57 subsequently merges into one approximately semicircular convex curvature 63. The guide rods 56 drive around so curved at a distance r4 minus the thickness of the guide rods 56, the shaft 4. From about one Connection line 64 between the longitudinal axes of rotation 11; 36 the convex curvature 63 of the guide rods 56 goes in a concave curvature 66 over. Drive around so curved Guide rods 56 below the cutting knife cylinder 2 in one short distance and end shortly before Counter-cutting knife cylinder 3. The convex curvature 63 has an outer radius r4, which is its Circle center 67 at a distance e to Longitudinal axis of rotation 11 on an extension of Has connecting line 64. The axially aligned Projections of circular path 12 and concave curvature 66 intersect at a lower intersection 68. This lies in the direction of rotation of both devices 1; 2nd seen just before an inlet gusset 69 of the Intersection A of circular path 12 with circular path 37. Furthermore, the axially aligned intersect Projections of the circular path 12 and the convex curvature 63 in an upper intersection 71, the immediate Near the transition from the straight end 57 to the convex Curvature 63 of the guide rod 56 lies. Both intersections 69; 71 lie on a side facing away from the shaft 4 the control device 54.

Thus, the ends 9 of the wiper fingers 6 move from Intersection 68 in the gaps 55 between the guide rods 56 and leave it again at intersection 71. The ends 9 thereby cover a cross-sectional area each between guide rod 56 and circular path 12, which the Has the shape of a crescent moon broken off at the bottom.

The stripping device 1 and the Cutting knife cylinders 2 are surrounded by a housing 72 enclosed, which consists of an upper housing part 73 and a lower housing part 74 with the associated Side parts exist (Fig. 1 and 2). The upper Housing part 73 begins with a left straight part 76, which is above the convex curvature 63 of the guide rods 56 runs at a distance x. The straight part 76 closes a right semicircular one not perforated part 77, which above and in runs a small distance from the circumference 14 of the cylinder 2 and in the immediate vicinity of the Counter-cutting knife cylinder 3 ends.

The lower unperforated housing part 74 extends from a straight left end 78 over a convex, at least semicircular curvature 79 to a right one End 81. The right end 81 is near the Cylinder 2 releasably attached to the guide rods 56.

The upper housing part 73 is rare with its two connected to the lower housing part 74. The lower Housing part 74 is 78 at its straight left end together with the first ends 57 of the guide rods 56 on the Bracket 58 attached. The left straight part 76 as well the left end 78 form together with the side parts a shaft 80. The shaft 80 is for suction the trim strip 84; 86 to one Disposal facility at the outlet of a Suction fan not shown connected.

The device according to the invention works as follows: The Counter cutting cylinder 3 transported z. B. in Counterclockwise rotation in its jaws 52; 53 folded signatures 82; 84, the two of them superimposed ends 88 - the z. B. Have puncture needles - be cut off should (Fig. 1). That about the counter cutting knife 46 protruding ones with the puncture needle punctures End 88 of the signature 83 is in cooperation with the Cutting knife bar 21 cut off and practical at the same time as trim strips 84 on the Puncture needles 24 of the production speed rotating cylinder 2 needled. On the deal with Production speed in a first direction of rotation rotating cylinder 2 passes through the needled Trim strips 84 on its circular path 37 the first Intersection A of the two intersections A, B and in the segment 91 of the drive-through area 15. While the trim strip 84 between the intersection points A and B of the drive-through space 15 moves, pass through Wiper finger ends 9 in a cylinder 2 opposite direction of rotation the intersection A and arrive at segment 92 on circular path 12. Since the Circumferential speed of the scraper finger ends 9 z. B. is three times larger than that of the puncture needle tips 31, the needles 24 from the Wiper finger ends 9 caught. The needled trim strips 86 from the Drive under wiper finger ends 9 in segment 92. Each fork-like end 9 of the stripper fingers 6 engages the pin 24 assigned to it without contact. In this state, the closest approximation is the Scraper ends 9 reached the puncture needles 24. The Wiper finger ends 9 push the trimming strip 84 subsequently from the puncture needles 24 in the direction their tip 31 down (see dashed line in Figs. 2 and 7). With further movement leave the Scraper finger ends 9 at intersection B the segment 92. Thus, the trim strip 86 during the Overtaking pushed down by the needle 24. The trim strip 84 is by the Wiper finger ends 9 along the guide device 54 transported towards waste disposal facility 80.

At the same time, the trim strip 84 is also by means of Suction air sucked in.

As a result of the arrangement of continuous annular grooves 41 the second embodiment of the cylinder 2 or Use a cylinder with a smaller radius r in the case of a third embodiment variant, too become possible that the stripping device a can have different peripheral speed. The Circumferential speed of the stripping device 1 can e.g. B. 2.5 times the peripheral speed of the Cylinder 2 amount. In this case, however, the Shaft 4 one at 180 ° to the first wiper finger 6 offset additional wiper fingers arranged his. There must always be a synchronization between the Ends 9 of the scraper fingers 6 and the puncture needles 24 at the time of pushing down the Trim strips 84; 86 be given.

Both the cylinder 2 and the scraper can from known gears from Counter-cutting knife cylinder 3 are driven. The Scraper device 1 and the cylinder 2; 3 are rotatably mounted in side frames, not shown.

Instead of the stripping device 1 can also in each case the vicinity of the needle 24, z. B. at foot 33 the same, clocked in the longitudinal direction thereof Blow air nozzles can be arranged. So that can Trim strips 84; 86 from the pin needles 24 be pushed down.

Parts list

1

Abstreifeinrichtung

2

Zylinder

3

Gegenschneidmesserzylinder

4

Welle (1)

5

Schenkel, lang (6)

6

Abstreiferfinger (1)

7

Fuß (6)

8

Schraube

9

Ende (6), freies

10

Mantelfläche (9)

11

Längsrotationsachse (1)

12

Kreisbahn (9)

13

-

14

Umfang (2)

15

Durchfahrvertiefung (16; 17; 18)

16

Reihe (15)

17

Reihe (15)

18

Reihe (15)

19

Anfang (15)

20

Längsachse

21

Schneidmesserleiste (2)

22

Schneidkante (21)

23

Punkturnadelleiste (2)

24

Punkturnadel (23)

25

-

26

Hochachse (21)

27

Hochachse (23)

28

Zinken (23)

29

Lücke (23)

30

-

31

Spitze (24)

32

Widerhaken (31)

33

Fuß (24)

34

Grund (29)

35

-

36

Längsrotationsachse (2)

37

Kreisbahn (31)

38

-

39

-

40

Ring (2)

41

Ringnut

42

-

43

Zylindermantel (2)

44

Gegenschneidmesser

45

Mantelfläche (37)

46

Gegenschneidmesser (3)

47

Gegenschneidmesserhalter (44)

48

Gegenschneidmesserhalter (46)

49

Traverse (3)

50

-

51

Traverse (3)

52

Falzklappe (3)

53

Falzklappe (3)

54

Leiteinrichtung

55

Lücke (56)

56

Leitstab (54)

57

Ende, erstes (56) gerades

58

Halterung (56; 64)

59

Klemmstück (58)

60

-

61

Klemmstück (58)

62

Traverse

63

Krümmung, konvex (56)

64

Verbindungslinie (11; 36)

65

-

66

Krümmung, konkav (56)

67

Kreismittelpunkt (r4)

68

Schnittpunkt, erster (12; 66)

69

Einlaufzwickel

70

-

71

Schnittpunkt (12; 63)

72

Gehäuse

73

Gehäuseteil, oberes

74

Gehäuseteil, unteres

75

-

76

Teil, links gerade (73)

77

Teil, gekrümmt (73)

78

Ende, links, (74) gerade

79

Krümmung (74)

80

Schacht (76; 78)

81

Ende, rechtes (74)

82

Signatur, gefalzt

83

Signatur, gefalzt

84

Beschnittstreifen

85

-

86

Beschnittstreifen

87

Bereich (A; B)

88

Ende (83)

89

Sekante (A; B; 12, 37)

90

-

91

Segment (89; 37)

92

Segment (89; 12)

b

lichter Abstand (6)

c

Abstand (11; 36)

d

Breite 16; 17; 18
Abstand (28)
Abstand, lichter (40)

e

Abstand (11; 67)

f

Abstand (14; 37)

g

Abstand (56)

l

Länge 16; 17; 18

t

Tiefe (41; 15)

x

Abstand (63; 76)

r

Radius (41)

r

Radius (43)

r1

Kreisbahn (12; 10)

r1

Radius (9)

r2

Radius (37; 45)

r3

Radius (14; 2)

r4

Außenradius (63)

b1

Breite (40)

A

Schnittpunkt (12; 37)

B

Schnittpunkt (12; 37)

ALPHA Zentriwinkel

1

Scraper

2

cylinder

3rd

Counter-cutting knife cylinder

4th

Shaft (1)

5

Leg, long (6)

6

Wiper fingers (1)

7

Foot (6)

8th

screw

9

End (6), free

10

Lateral surface (9)

11

Longitudinal rotation axis (1)

12th

Circular path (9)

13

-

14

Scope (2)

15

Drive-through recess (16; 17; 18)

16

Row (15)

17th

Row (15)

18th

Row (15)

19th

Early (15)

20th

Longitudinal axis

21

Cutting knife bar (2)

22

Cutting edge (21)

23

Pinpoint needle bar (2)

24th

Pinpoint needle (23)

25th

-

26

Vertical axis (21)

27

Vertical axis (23)

28

Tine (23)

29

Gap (23)

30th

-

31

Lace (24)

32

Barb (31)

33

Foot (24)

34

Basic (29)

35

-

36

Longitudinal rotation axis (2)

37

Circular path (31)

38

-

39

-

40

Ring (2)

41

Ring groove

42

-

43

Cylinder jacket (2)

44

Counter cutting knife

45

Lateral surface (37)

46

Counter Cutting Knife (3)

47

Counter Cutting Knife Holders (44)

48

Counter Cutting Knife Holders (46)

49

Traverse (3)

50

-

51

Traverse (3)

52

Folding jaw (3)

53

Folding jaw (3)

54

Control device

55

Gap (56)

56

Guide rod (54)

57

End, first (56) straight

58

Bracket (56; 64)

59

Clamping piece (58)

60

-

61

Clamping piece (58)

62

traverse

63

Curvature, convex (56)

64

Connecting line (11; 36)

65

-

66

Concave (56)

67

Circle center (r4)

68

Intersection, first (12; 66)

69

Inlet gusset

70

-

71

Intersection (12; 63)

72

casing

73

Housing part, upper

74

Housing part, lower

75

-

76

Part, left straight (73)

77

Part, curved (73)

78

End, left, (74) straight

79

Curvature (74)

80

Shaft (76; 78)

81

Right End (74)

82

Signature, folded

83

Signature, folded

84

Trim strips

85

-

86

Trim strips

87

Area (A; B)

88

End (83)

89

Secant (A; B; 12, 37)

90

-

91

Segment (89; 37)

92

Segment (89; 12)

b

clear distance (6)

c

Distance (11; 36)

d

Width 16; 17; 18th
Distance (28)
Clearance (40)

e

Distance (11; 67)

f

Distance (14; 37)

G

Distance (56)

l

Length 16; 17; 18th

t

Depth (41; 15)

x

Distance (63; 76)

r

Radius (41)

r

Radius (43)

r1

Circular path (12; 10)

r1

Radius (9)

r2

Radius (37; 45)

r3

Radius (14; 2)

r4

Outer Radius (63)

b1

Width (40)

A

Intersection (12; 37)

B

Intersection (12; 37)

ALPHA central angle

Claims (14)

1. Apparatus for the treatment of trimmed strips (84; 86) of a print carrier (82; 83) which are pinned on point-hole pins (24) of a cylinder (2), with a following disposal device (80), the cylinder (2) which has point-hole pins (24) being followed by a stripping device (1) with stripping fingers (6), characterized in that the stripping fingers (6) are arranged rotatably next to or in the path of movement of the point-hole pins (24), and in that the cylinder (2) which has point-hole pins (24) is provided with a cutting-knife bar (21).
2. Apparatus for the treatment of trimmed strips (84; 86) of a print carrier (82; 83) which are pinned on point-hole pins (24) of a cylinder (2), with a following disposal device (80), the cylinder (2) which has point-hole pins (24) being followed by a stripping device (1) with stripping fingers (6), characterized in that the stripping fingers (6) are arranged rotatably next to or in the path of movement of the point-hole pins (24), and in that the rotating stripping fingers (6) are assigned a guide device (54).
3. Apparatus according to Claim 1 or 2, characterized in that the cylinder (2) is assigned a housing (72) capable of being acted upon by suction air.
4. Apparatus according to Claim 1 or 2, characterized in that the stripping fingers (6) extend outwards in the radial direction (r1).
5. Apparatus according to Claim 1 or 2, characterized in that the stripping device (1) has a plurality of stripping fingers (6) fastened on a rotatably mounted shaft (4) at a clear distance (b) next to one another, in that a plurality of point-hole pins (24) of a preceding cylinder (2) are arranged on the outer surface (45) of the cylinder (2) at an axially parallel distance next to one another such that they mesh contactlessly with the stripper finger ends (9), and in that the stripper fingers (6) pass with their ends (9) periodically through passage depressions (15) of the cylinder (2).
6. Apparatus according to Claim 5, characterized in that each stripper finger (6) has a fork-shaped design at its end (9).
7. Apparatus according to Claim 5, characterized in that each stripper finger (6) is designed in two parts, and in that the distance between two stripper fingers (6) is greater than the maximum diameter of the point-hole pin (24).
8. Apparatus according to Claim 5, characterized in that the preceding cylinder (2) has rows (16; 17; 18), regularly distributed on its circumference (14), of passage depressions (15) for stripper fingers (6), said passage depressions being arranged at a distance (b1) next to one another.
9. Apparatus according to Claim 8, characterized in that the passage depressions (15) each have a lens shape with a maximum depth (t).
10. Apparatus according to Claim 8, characterized in that the passage depressions (15) each have a rectangular shape with a maximum depth (t).
11. Apparatus according to Claim 1 or 2, characterized in that the cylinder (2) has a plurality of rings (40) arranged at a distance (d) from one another and having, between them, grooves (41) of a depth (t).
12. Apparatus according to Claim 1 or 2, characterized in that the cylinder (2) consists of a cylinder body (42) with a radius (r), and in that a cutting-knife and point-hole pin bar (21; 23) projects from the cylinder casing (43) at least by an amount (t).
13. Apparatus according to Claim 2, characterized in that the guide device (54) consists of guide rods (56) arranged at a clear distance (g) next to one another.
14. Apparatus according to Claim 3, characterized in that the cylinder (2) and the stripping device (1) are surrounded by a housing (72) capable of being acted upon by suction air, and in that this housing (72) is connected to the disposal device (80) via a conduit (80).

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