DE2357820A1 - CUTTING DEVICE - Google Patents

Description

Dr.-Ing. Wooden houses
Dip! - Mat Goldbach

! Patent attorneys

605 OFFEr-JDACMAM MA! N November 16, 1973

.-ierrnsiraße 37 · Telephone 88 83 84 .

LS / F

j stamping technology company with

limited liability

j Roder + Spengler

6000 Bergen - Enkheim Vilbeler Landstrasse 41

Cutting device

Addition to patent ♦ _β (P 22 11 118.8

The main patent application is for a cutting device that is used as a carrier for a cutting roller as well as for comprises at least one counter-pressure roller serving frame and a drive, wherein over the circumference of the cutting roller at least one helically arranged knife protrudes radially, protected that the axis of the counter pressure roller cooperating cutting roller to compensate for the angular deviation of the helically arranged Knife under one of 90. different angle 90 ^ Λ to the direction P of the material is arranged.

■ -, 40982-1 - / 0 & 67-- -

In a further development of a cutting device of the aforementioned Art it was found that considerable simplifications can be achieved and new areas of application opened up as a result can be that according to the invention between the drive and the one or more cutting or punching knife carrying Cutting roller a remotely controllable, electro-magnetic working Coupling is provided and that the cutting roller has a brake which stops spontaneously in response to control pulses assigned.

The cutting roller is only set in rotation when a cut is to be made while it is being used as a base serving counter-pressure roller continuously the Schneidbzw. Material to be punched promotes. A continuous passing of the goods on or under the punching or cutting roller is possible because the knife or knives are not over their Extend the entire circumference and thus parts remain on the circumference of the cutting roller, on which there are no knives

By controlling the clutch, the cutting roller is brought into engagement, whereby by appropriate interval control Stamped material with different lengths can be produced. Furthermore, it is proposed according to the invention that the cutting roller

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. pivotable about an axis intersecting its longitudinal axis in J

the frame carrying them is mounted and that preferably j

a swivel drive is provided through which the swivel ι roll into a different, adjustable one after each work step

Position is pivotable. j

Further features of the invention emerge from the description
and the claims in connection with the drawing. The invention will be hereinafter written reference to an exemplary \ embodiment which is illustrated in the drawing I loading. Show? j

Figd: a sectional view through part of a
cutting device according to the invention;

2: a side view of the inventive
Cutting device;

3: a plan view of part of the cutting device ;

FIG. 4: a view partly shown in section a device for fastening the punching or cutting knife on a cutting roller in a larger size Scale;

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Fig. 5: a sectional view along the line V-V in Fig. 4;

6: a plan view of an example shown Punched material;

Fig. 7: a sectional view through a punching or Cutting roller with an inventive attachment of the punching or cutting knife and

Fig. 8 -

Fie ^{10: versc} ^ i ^{var ous} plan views of the punching or

Cutting roller according to Fig. 7 with knives for Punch out the material to be cut according to Fig. 6.

The cutting device 1 according to FIG. 2 comprises a frame 2, in which a punching and cutting roller 3 is mounted adjustable in height and together with a counter-pressure roller 4 over a chain drive 5 is driven by a motor 6 with the interposition of a gear 7.

A remotely controllable, electromagnetic clutch 10 is provided between the drive 5 and the cutting roller 3 carrying the cutting or punching knife 8 and 9, with the help of which it is possible to set the cutting roller either in rotation or by the drive 5

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j solve. Furthermore, the cutting roller 3 is one of these on control

j impulses out spontaneously.steady brake 11 assigned to the

Loosening the clutch 10 immediately engages as it works together with

j this is controlled. On the other hand, the brake 11 is the

Cutting roller 3 free when the clutch 10 receives a control pulse ! for engaging.

From Figure 1, the structural arrangement of the coupling 10 and goes • the brake 11 on a drive shaft 12 together with a j sprocket 13 and a brake part 15 located on the bearing block 14 clearly emerges. The sprocket 13 is freely rotatable mounted on the drive shaft 12 and rotates continuously

j Part of the coupling 10 is rigidly connected to the drive shaft 12 J, which means that after a Coupling connection between the coupling part and the chain wheel 13, the drive shaft 12 and with it the cutting roller 3 be set in rotation.

The brake 11 comprises a one that is rigidly mounted on the drive shaft 12 Disc, which is rigidly attached to the bearing block 14 with a Brake part 15 cooperates when a corresponding control pulse is issued. The brake 11 works just like that Coupling 10 electro-magnetic so that between these two Elements are no fundamental differences, whereby

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only the coupling a releasable connection between the drive shaft 12 and the chain wheel 13 and the brake 11 a Establish a detachable connection between the drive shaft 12 and the braking part 15 on the bearing block 14. It goes without saying however, that the invention is not limited to the use of such clutches and brakes.

From Figure 1 it is also clear that to form the Surface 16 of the counter-pressure roller 4 has several axially displaceable rings that can be locked in the desired position 171 18:19 serve. The material for the rings 17-19 is Nylon or the like. used. Rings 17-19 sit on one Steel cylinder 20 and are at its ends 21, for example with the help of screws 22, a retaining washer 23 and Spacer rings 24 fixed.

By changing the number of spacer rings 24, the position of the rings 17-19 on the steel cylinder can be changed, whereby the usability of the material forming the surface 16 of the counterpressure roller 4 is increased, since it is possible the notches caused by the punching or cutting knives 8 and 9 in the surface 16 so in the axial direction to postpone so that clean die cuts are possible again.

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The cutting device 25 shown in plan view in FIG. 3 has a cutting roller 26 serving as a cross cutter and another cutting roller 27 serving as a longitudinal cutter. The cutting roller 26 is about a longitudinal axis 28 intersecting Axis 29 is pivotably mounted in the frame 30 carrying it. As can be seen from Figure 3, the axis 29 is outside the cutter roller 26, but this need not be the case

The cutting roller 26 is arranged in a swivel frame 31, the fulcrum of which is the axis 29 and the one on its other, free end 32 is mounted in a sliding guide in the frame 30. The two free ends 32 and 33 of the swivel frame 31 are through pulleys 34 supporting rods 35 and

36 connected. The pulleys 54 are over the length of the Caster 26 distributed-; Arranged on their inlet and outlet side, as well as a corresponding number of pulleys

37 and 38 on the inlet and outlet side of the cutting device 25. The deflection rollers 37 and 38 sit on rods 39 and 40 which are mounted directly in the frame 30. About the Deflection rollers 34 and 37 or 38 are guided by round rubber cords 40 which serve as a base for the material to be cut.

The task of the rubber cords 40 is the free Space between the cutting roller 26 and the material to be cut

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8th -

Bridging cutting device 25 transporting conveyor belt. This free space 41 changes depending on the position of the Cutting roller 26, since it is able to pivot about axis 29.

Except for the rubber cords 40 are used to guide the punched material

support rollers 42 and guide rollers 43 are also provided, which are mounted on suitable rods 44.

The cutting device 25 according to FIG. 3 gives the possibility of To produce punched material in which after each cutting process

i gang the position of the cutting roller 26 is changed. This is with J

I Stamped material with a certain shape, e.g. trapezoidal or similarly designed parts are necessary. The parallel sides of a trapezoidal part are cut with the help of a slitter 27 generated, while the cutting roller 26 is used to produce the other cutting lines. The drive 45 for adjustment the cutting roller 26 is shown only schematically in Fig. 3 and can, for example, a compressed air motor or a chain drive not shown.

3 shows clearly that the punching or Cutting knife 46 is arranged helically on the cutting roller 26, while the punching or cutting knife 47

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lie on the cutting roller 27 serving as a longitudinal cutter in the circumferential direction.

It goes without saying that a clutch 10 and a brake 11 according to the embodiment shown in Figure 1 also can be used in a cutting device 25 according to FIG. The control of the clutch and the brake as well as the drive 45 for pivoting the cutting roller 26 is preferably carried out with the aid of a digital control device, with the aid of Punched tape or the like. The way in which this controls can take place, is also dependent on the application and therefore not the subject of the invention.

The punching or cutting devices used in the cutting devices 1 or 25. Cutting knives 50 according to FIGS. 4 and 5 rest with flat, flat back parts 51 on the surface 52 of the cylinder 53 of the cutting roller 54 and are fastened there with the aid of holding blocks 55. Screws 56 also serve to fasten the punching knives 50 to the holding blocks 55 and to fasten the holding blocks 5 to the cutting roller 54

The holding blocks 55 are T-shaped and consist of a cross member 57 receiving the punching knife 50 and a support part 58, which can be clamped in a bore 59 of the cutting roller 54.

10 -

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The cross member 57 of the retaining block 55 preferably has a longitudinal groove 60 extending over its height, in! which the punch knife 50 lies. The cross member also has 57 a transverse bore 61 through which the fastening screw 56 passes and with the help of which the punch knife 50 between the fasten the two parts 62 and 63 forming the cross member 57 is cash.

Furthermore, a further bore 64 extends transversely to the longitudinal direction of the punching knife 50 through the cross member 57 into the support part 58, which merges there behind a shoulder 65 into a conical recess 67 that diverges towards the free end 66 of the support part 58. In the recess 67 there is arranged a correspondingly shaped expansion body 69, adjustable with the aid of a screw 68, with the aid of which the support part 58 in the bore 59 of the cutting roller 54 can be pressed apart. ^!

The support part 58 preferably consists of two legs 70 ^; and 71, between which the expansion body 69 is pulled with the aid of the screw 68 so that the outer surfaces of the j

Place legs 70 and 71 firmly against bore 59. After the screw 68 has been tightened, the retaining block 55 is secure; attached to the cutter roller 54.

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The back of the punching knives 50 has incisions 72, since the punching knives 50 grip over the fastening screws 56 have to.

To explain the invention, FIG. 6 shows a finished circuit board 75 of a folding box of a certain size in thick ^, solid lines. The longitudinally veri ■ '■

j running edges 76 and 77 are produced with the aid of a longitudinal _{cutter, ie o} with the aid of a cutting roller,; which has punching or cutting knives ¹ lying only in the circumferential direction. The same also applies to the production of the

; dashed lines shown break lines 78 and 79 o

1 y

j If a folding box of a smaller size, for example I corresponds to the thin line 80 instead of the thick line 81

■ is to be made, the coupling of the transverse

Schneider's correspondingly earlier or later control pulses j are given, while the material to be cut is at a constant speed i speed runs through the cutter.

The corners 82 to 85 of the circuit board 75 which are punched out at an angle are produced with the aid of the cutting roller serving as a cross cutter, which is also shown in FIGS. The cutting roller 86 carries punching or cutting knives 87 arranged along spirally extending lines on its circumference

- 12

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and 88, which run essentially in the longitudinal direction of the cutting roller 86, and punching and cutting knives 89, which also lie on a spiral path, but more in the circumferential direction. It goes without saying that the axis 90 of the cutting roller 86 is at the same angle <&. is offset to the direction of travel of the punched material in the cutting device, like the punching knives 87 to 89 to the axis 90 _e

With the aid of visible in Figure 8 punching blades 88 and 89, the angular corners are punched 83 and 84 of the circuit board 75 while the punching blades 82 and 85 of the circuit board 75 are 87 and 89 according to Figure 10 for punching out the corners ₀ The respectively between the Knives 91 and 92 located on both punching knives 87 and 88 are used to generate break lines 93 and 94, respectively.

For fastening punching knives 87 "to 92 on the cutting roller 86 are curved supports 95 and 96, on which the punching knives 87 and 89 or 88 and 89 are rigidly attached. The edges 97 and 98 of the carriers 95 and 96 each have one step-shaped shoulder 99, via which a holding part 100 or 101, which can be screwed onto the cutting roller 86, with a for holding and guiding serving, a clamping connection generating projection 102 or 103 protrudes. The holding parts 100

- 13 -

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j and 101 are screwed onto the circumference of the cutting roller 86

j bar that they act as a spiral guide for the

j supports 95 and 96 are used. Prepared, on spiral lines

; lying threaded bores 104 on the circumference of the cutting roller

j allow a simple and easy to carry out at any time

Adjustment of the punch knife at any point.

The carrier 105 finally shown in FIG. 7 for a punching and cutting knife 106 producing a circular cut is directly attached by means of screws the cutter roll 86 attached. The punching knife 106 according to FIG. 7 serves to produce the opening 107 in the plate 75

and is also in its respective position in FIGS. 8-10

! shown «, The immediate attachment of the punching knife 106 on the carrier 105 and then with the help of screws on the cutting roller 86 is advisable in all cases if it is not to be expected that its position will have to be changed several times within a normal operating time.

Finally, it can be seen from FIG. 7 that the cutting roller 86, a cam disk 108 can be assigned to which a switching element 109 rests, which is used to control the Magnetic coupling or the brake of the cutting roller is used.

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This last embodiment also shows that the invention does not apply to the exemplary embodiments shown in the figures it is limited that rather changes can be made without thereby departing from the fundamental Invention idea is deviated.

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Claims (1)

Claim j 1. Cutting device, which serves as a carrier for a cutting roller! as well as for at least one counter-pressure roller Scaffold and a drive comprises, wherein over the circumference of the cutting roller at least one very dome line ! shaped knife protrudes radially and wherein according to the main patent application P 22 11 118.8 the axis of the j cutting roller I working together with the counter-pressure roller to compensate for the angular deviation of the screw '. Ben-line arranged knife at an angle deviating from j 90 ° 90 ί φ to the direction of the j material is arranged, characterized in that i that between the drive (5) and the that or the ! Punching or «, cutting knife (8,9) carrying cutting roller I (3) a remotely controllable, electro-magnetic one ΐ Coupling (16) · is provided and that the cutting roller J (3) one that spontaneously persists in response to control impulses : Brake (11) is assigned. • 2. Cutting device according to claim 1, characterized I shows that to control the clutch (10) electrical j see or pneumatic control pulses are used. 609821/0567 3. Cutting device according to claim 1 and 2, characterized in that to form the surface (16) of the
Counter pressure roller (4) several axially displaceable and in rings (17 to
ι 19) preferably made of nylon or the like. to serve. 4. Cutting device according to claim 1 to 3 »thereby ge I. ι indicates that as a base for the punched material in front of {and behind the cutting roller (26) used for punching \ Circumferential rubber cords (40) in the direction of transport! i are arranged. j 5. Cutting device according to claim 1 to 4, characterized ge j indicates that a cutting roller (26) as a transverse j cutter and another cutting roller (27) serve as a longitudinal cutter. 6. Cutting device according to claim 1 to 5, characterized in that the serving as a cross cutter
Cutting roller (26) pivotable about an axis (29) intersecting its longitudinal axis (28) in the frame carrying it
(30) is stored. 7. Cutting device according to claim 6, characterized 509 £ 21 / OSC net that a cutting roller serving as a cross cutter (26) receiving swivel frame (31) over the Length of the cutting roller (26) distributed on its inlet and outlet side several pulleys (34) for the Round rubber cords (40). 8. Cutting device according to claim 1, characterized in that the punching knife (50) with flat, flat back parts (51) rest on the surface (52) of the cutting roller (54) and that holding blocks (55) to fasten the punching knife (50) on the cutting roller, that the punching knife (50) is used on the holding blocks screwable and this in turn, the Cutting roller with the help of screws or the like. attachable are. 9. Cutting device according to claim 8, characterized in that the holding blocks (55) are T-shaped and from a crossbeam (57) receiving the punching knife and one in one in the surface of the cutter roll located bore braced support part (58). 10. Cutting device according to claim 8 and 9, characterized 509821/0567 characterized in that the cross member (57) of the retaining block (55) extends over its height Longitudinal groove (60) for receiving the punching knife (50) and a transverse bore (61) for receiving a fastening screw (56) and a bore (64) rutted into the support part (58) which there behind a shoulder (65) in a conical or divergent towards the free end (66) of the support part (58) Recess (67) merges, in which a correspondingly shaped, with the help of a screw (68) adjustable expansion body (69) is arranged. 11. Cutting device according to claim 10, characterized in that the back of the punching knife (50) Has incisions (72). 12. Cutting device according to claim 1, characterized in that the punch knife firmly on a curved Carriers (95, 96) are arranged, the edges (97, 98) of which have a step-shaped shoulder (99), Via a holding part (100,101) that can be screwed onto the cutting roller with a holding and Guide serving, a clamping connection generating projection (102, 103) protrudes. 509 8 2 1/0567 - B - 13 »Cutting device according to claim 12, characterized in that that the carriers (95,96) can be continuously moved and locked along the holding parts (100, 101) « 14o cutting device according to claim 12 and 13, characterized in that the cutting roller (86) has bores (104) in its surface which are each arranged along spiral lines and are used to attach the carriers (95, 96) _c 15. Cutting device according to claim 1 to 14, characterized in that that the cutting roller (86) is assigned a cam disk (108) and that with the cam disk (108) the magnetic coupling and the brake of the Cutting roller (86) controlling switching element (109) cooperates. 16. Cutting device according to claim 1, characterized in that the cutting roller has a drive (45) for pivoting about an axis (29) intersecting its longitudinal axis (28) relative to the direction of transport of the material to be cut assigned. 509821/0567 Blank page