EP1902820A2 - Dispositif destiné à la découpe et/ou au gaufrage d'un flan ou d'une bande - Google Patents

Dispositif destiné à la découpe et/ou au gaufrage d'un flan ou d'une bande Download PDF

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Publication number
EP1902820A2
EP1902820A2 EP07018159A EP07018159A EP1902820A2 EP 1902820 A2 EP1902820 A2 EP 1902820A2 EP 07018159 A EP07018159 A EP 07018159A EP 07018159 A EP07018159 A EP 07018159A EP 1902820 A2 EP1902820 A2 EP 1902820A2
Authority
EP
European Patent Office
Prior art keywords
cutting
roller
embossing
counter
force
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP07018159A
Other languages
German (de)
English (en)
Inventor
Reinhard Raueiser
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Winkler and Duennebier GmbH
Original Assignee
Winkler and Duennebier GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Winkler and Duennebier GmbH filed Critical Winkler and Duennebier GmbH
Publication of EP1902820A2 publication Critical patent/EP1902820A2/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2628—Means for adjusting the position of the cutting member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2628—Means for adjusting the position of the cutting member
    • B26D7/265—Journals, bearings or supports for positioning rollers or cylinders relatively to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/384—Cutting-out; Stamping-out using rotating drums
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
    • B31F2201/07—Embossing
    • B31F2201/0707—Embossing by tools working continuously
    • B31F2201/0715—The tools being rollers
    • B31F2201/0753—Roller supporting, positioning, driving means

Definitions

  • the present invention relates to a device for cutting and / or embossing a sheet, a blank or a material web.
  • the sheet may, for example, be a cardboard sheet from which folding carton blanks are cut out.
  • the blank can be, for example, envelope blanks, which are trimmed and / or embossed as part of the production of finished envelopes.
  • the material web can be, for example, a paper web from which envelope or label blanks are cut out.
  • a punching device for the production of labels which has a rotatably mounted punching roller and a rotatably mounted counter-pressure roller.
  • Each of the two rollers has on its periphery two so-called, long known bearer rings in the form of closed circumferential running surfaces.
  • the punching and the counter-pressure roller are pressed against each other on these mutually rolling treads with relatively large forces in order to avoid disturbing roll vibrations during operation of the punching device and thereby to ensure an axially as constant as possible gap width between the two rollers.
  • a Kraftbeetzschungs noticed in the form of two pairs of rollers on the running surfaces of the bearer rings of the punching roller.
  • Bearer rings have the disadvantage that they heat up due to the Hertzian pressure and the slip between the mutually rolling treads and thereby lead to non-uniform deformations of the nip. Some slippage always occurs because the diameters of the bearer rings, e.g. in order to get the possibility of regrinding, never equal, but force the drive gears a synchronization of the rollers. In addition, dirt reaching the bearer rings can cause variations in the gap width, resulting in deterioration of the punching result.
  • WO 2006/004474 A1 is a device with top-mounted cutting roller and arranged below counter-pressure roller known, in which case each of the rollers has bearer rings, with the help of which the rollers are pressed against each other.
  • the bearings of the counter-pressure roller are arranged offset to one another so that their distance is less than the distance between the bearings of the cutting roller.
  • the bearer rings are located in the axial direction in each case between the further outer bearing of the cutting roller and the further inner bearing of the counter-pressure roller.
  • the bearings of the counter-pressure roller are acted upon in this known device against its own weight force with an upward pressure force, so that the counter-pressure roller between the bearer rings bends upwards.
  • the cutting roller bends upwards due to the pressure applied to it by the bearer rings.
  • a cutting force occurs which acts on the one hand on the counter-pressure roller down and on the other hand on the cutting roller upwards.
  • This compensates for the upward deflection of the platen so that the latter is horizontally rectilinear, i. essentially without deflection, runs.
  • the cutting roller is additionally bent upward, so that in turn results in a non-uniformly deformed nip. Due to the existing bearer rings, the disadvantages associated with these are again given.
  • the pressure force applied by the force application device to the circumferential surface of the cutting and / or embossing roller is completely diverted into its bearing by at least part of the cutting and / or embossing roller, so that the counter roller is not subjected to the pressure force.
  • no forces are transmitted between the cutting and / or embossing roller on the one hand and the counter-roller on the other hand, in addition to the material located between the rollers during operation.
  • the force transmitted during the cutting and / or embossing operation between the rollers via the material located between them is referred to below as cutting and / or embossing force.
  • the cutting and / or embossing roller according to the invention always has a certain deflection.
  • the size of this deflection can be varied by adjusting the size of the pressure applied to it, so that sets in the cutting and / or embossing operation a deflection of the counter roll, wherein the bending lines of the cutting and / or embossing roll and the counter roll at least in their have relevant axial curvature during operation substantially the same curvature and accordingly could be placed there substantially congruent to each other.
  • a uniform gap width of the gap between the cutting and / or embossing roller and the counter-roller is achieved at least over the relevant axial width of the rollers.
  • according to the invention advantageously reduces the deflection of the backing roll and the uniformity of the gap width by adjusting the bending lines of the two rolls together can be carried out at a reduced deflection level.
  • the applied compressive force and the self-weight force push the cutting and / or embossing roll in a certain direction so that the possibly existing bearing clearance in the bearings of the cutting and / or embossing roll is prevented in the manner of a bias voltage, i. not available for movement of the cutting and / or embossing roll.
  • play-bearing standard bearings can therefore be used in the context of the present invention.
  • the sum of the self-weight force of the cutting and / or embossing roller and the vertical component of the pressure applied to it is always greater than the vertically acting upwards cutting and / or embossing force according to the invention.
  • a further advantage of the device according to the present invention is that it can be used not only in conjunction with solid rolls but also advantageously in conjunction with rolls, on the lateral surfaces of which detachable foil knives are attached.
  • Schmitzringystemen no use of foil knives with varying thicknesses was possible because a foil blade thickness change would have required a processing of the bearer rings.
  • a Spaltinstell shark can be provided, which is acted upon or biased with the derived in the storage of the cutting and / or embossing roller pressure force.
  • the gap adjusting device can be, for example, at least one wedge acting between the two rollers, which can be moved by means of a manually operable adjusting mechanism.
  • the force application device is preferably at least one pivoting lever pivotably mounted about a pivot axis and on which at least one pressure roller is mounted at a distance from the pivot axis.
  • the pressure roller engages at a location on the peripheral surface of the cutting and / or embossing roller, which is arranged lying horizontally offset to the longitudinal axis thereof.
  • a stable equilibrium position of the rollers is achieved even with exactly vertical superimposed longitudinal axes of the two rollers. It is also particularly advantageous to displace the longitudinal axes of the two rollers horizontally relative to each other. In conjunction with the offset to the longitudinal axis of the cutting and / or embossing roller point of attack of the pressure roller results in a further improved stable equilibrium position of the rollers relative to each other.
  • the cutting and / or embossing roller can be driven by a motor and transmit its rotational movement via a gear drive to the counter-roller.
  • the cutting and / or embossing roller on a drive gear, which meshes with a gear driven by it counter-roller.
  • the drive gear or the driven gear according to the invention may be formed divided along a radial plane of the cutting and / or embossing roll or counter-roll and a first part gear and a second partial gear include.
  • the two partial gears are rotatable relative to each other about the longitudinal axis of the cutting and / or embossing roll or counter-roll and rotatably connected in an arbitrarily selected rotational position with the cutting and / or embossing roll or counter-roll connectable.
  • a further force application device can be provided, which acts on the counter roller with a counterforce acting in a radial direction substantially opposite to the direction of the pressure force and with material not located between the rollers is completely derived in the bearings of the backing roll.
  • a counterforce acting in a radial direction substantially opposite to the direction of the pressure force and with material not located between the rollers is completely derived in the bearings of the backing roll.
  • Fig. 1 shows the sectional view of an embodiment of the device according to the invention in a Radialblickraum. It is a cutting and embossing roller assembly for simultaneous cutting and embossing of cardboard. In the context of the present invention, however, a pure cutting roller arrangement or a pure embossing roll arrangement is also conceivable.
  • a cutting and embossing roll 2 - hereinafter referred to as a cutting roller 2 for simplicity - rotatably supported by means of two bearings 8 in a frame 1.
  • the bearings 8 are preferably standard rolling bearings.
  • the cutting roller 2 carries on its lateral surface two cutting blades 4 and embossing pins 25 for cutting and embossing cardboard, are made from the Faltschachtelzu motherboarde.
  • the geometry of the cutting blade 4 and the embossing pins 25 is designed depending on the application and cutting or embossing task.
  • the cardboard is cut in a straight line and embossed at the same time.
  • a counter-roller 3 is mounted with bearings in a substantially smooth circumferential surface rotatably. It is also conceivable, however, a non-smooth lateral surface of the counter-roller 3, for example, if it is formed in an embossing roll arrangement as a die roller with recesses for receiving embossing pins.
  • the bearings 22 are preferably roller bearings.
  • the distance between the cutting edges of the cutting blade 4 and the lateral surface of the counter-roller 3 is referred to as gap width S, depending on Thickness and type of material to be cut in later described manner is adjustable.
  • the distance of the radially outer ends of the embossing pins 25 from the lateral surface of the counter roll 3 may differ from the gap width S.
  • the drive of the device according to the invention is carried out by means of a motor 11, which is arranged in Fig. 1 at the left end of the cutting roller 2.
  • the motor 11 causes the cutting roller 2 in rotation, wherein the rotational movement is transmitted by means of a drive gear 7 to the counter-roller 3.
  • the drive gear 7 is rotatably connected to the motor 11 opposite end of the cutting roller 2 with this. It meshes with an equally large gear 10 which is rotatably connected to the counter-roller 3, so that the rotational movement of the cutting roller 2 is transmitted to the counter-roller 3 with a transmission ratio of 1: 1. Only the direction of rotation of the counter roll 3 is opposite to that of the cutting roller. 2
  • the cutting roller 2 has, in the embodiment shown, two closed circumferential surfaces 5, which serve as running surfaces for two rotatably mounted pressure rollers 6.
  • the peripheral surfaces 5 may be raised or set back from the adjacent lateral surfaces of the cutting roller 2 or terminate flush with the adjacent lateral surfaces.
  • the pressure rollers 6 form part of a Kraftbeaufschlagungs learned, by means of which the cutting roller 2 is acted upon by a radially acting pressure force F (see FIG. 2).
  • each of the two pressure rollers 6 is rotatably mounted on a pivot lever 19, which in turn is rotatably mounted about a pivot axis 18 on the frame 1.
  • a pivot lever 19 engages the pivot axis 18 opposite the end of the pivot lever 19, for example, a hydraulically actuated force transmission member 12 and pushes it down, so that the pressure rollers 6 exert the pressure force F shown in Fig. 2 on the cutting roller 2.
  • the point at which the pressure roller 6 engages the peripheral surface 5 is offset relative to the longitudinal axis 20 of the cutting roller 2 in Fig. 2 to the left.
  • the longitudinal axis 20 of the cutting roller 2 is offset relative to the longitudinal axis 21 of the backing roll 3 by the horizontal offset a to the right in the embodiment shown.
  • the force exerted by the two pressure rollers 6 on the cutting roller 2 pressure force F is inventively by each subsection of the cutting roller 2, which is located between the peripheral surface 5 and the bearing 8, completely derived in the frame 1 held in the bearing 8. In this case, the cutting roller 2 is pressed by the distance of the existing bearing clearance in the effective direction of the pressing force F to be recognized in FIG.
  • Fig. 1 three bending lines 13, 14 and 15 of the cutting roller 2 are located.
  • the course of the longitudinal axis 20 denotes the zero level of the deflection.
  • the bending line 14 results from the cutting and embossing force acting on the cutting roller 2 substantially vertically upward during the cutting and embossing process, depending on the size of the horizontal offset a.
  • the bending line 15 results from the sum of the self-weight force of the cutting roller 2 and the vertical component F V of the pressing force F.
  • the bending line 13 is the sum bending line resulting from an addition of the bending lines 14 and 15.
  • FIG. 1 further bending lines 16 and 17 of the counter-roller 3 are shown.
  • the longitudinal axis 21 represents the zero level of the deflection.
  • the bending line 17 results from the self-weight force of the counter roll 3.
  • the bending line 16 represents the resulting from the sum of dead weight and cutting and embossing force deflection.
  • the bending line 13 of the cutting roller 2 substantially corresponds to the bending line 16 of the counter-roller 3 when the pressing force F is suitably selected.
  • the adjustment of the gap width S of the gap takes place with the aid of a gap adjusting device acting between the bearings 8 and 22 of the cutting roller 2 or counter roller 3, which in the embodiment shown is in the form of two adjustable wedges 9.
  • the wedges 9 can be moved, for example, by means of a handwheel, not shown in Fig. 2 to the left or right and are each between two jewels 23 and 24, which are mounted in the frame 1 movably movable in the vertical direction.
  • the jewel 23 each receives the bearing 8 while the jewel 24 each receives the bearing 22.
  • the derived in the bearing 8 pressure force F is transferred to the wedges 9 via the jewels 23, so that the wedges 9 when moving in Fig. 2 to the left the cutting roller 2 indirectly on the jewels 23 and the Lift bearing 8 against the derived pressure force F.
  • the counter-roller 3 associated bearing blocks 24 do not move in the adjustment of the gap width S.
  • the drive gear 7 is preferably provided to form the drive gear 7 as a gear which is divided in a plane substantially perpendicular to the longitudinal axis 20 of the cutting roller 2 and accordingly has a first part gear 7a and a second part gear 7b.
  • the two partial gears 7a, 7b are rotatable relative to each other, so that at least one of the two partial gears 7a, b can be brought into such a rotational position and fixed there, in which mesh his teeth without backlash with the driven gear 10 of the backing roll 3.
  • the partial gears 7a, 7b are both rotationally fixed to the cutting roller 2 can be fixed.
  • the driven gear 10 may be divided in a similar manner instead of the drive gear 7.
  • the gap between the cutting and / or embossing roll and the counter roll can be formed at least in the relevant for the cutting and / or embossing process axial portion of the rolls with uniformly large gap width.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
EP07018159A 2006-09-19 2007-09-15 Dispositif destiné à la découpe et/ou au gaufrage d'un flan ou d'une bande Withdrawn EP1902820A2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006044610A DE102006044610B4 (de) 2006-09-19 2006-09-19 Vorrichtung zum Schneiden und/oder Prägen eines Zuschnittes oder einer Materialbahn

Publications (1)

Publication Number Publication Date
EP1902820A2 true EP1902820A2 (fr) 2008-03-26

Family

ID=38895661

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07018159A Withdrawn EP1902820A2 (fr) 2006-09-19 2007-09-15 Dispositif destiné à la découpe et/ou au gaufrage d'un flan ou d'une bande

Country Status (4)

Country Link
US (1) US20080066632A1 (fr)
EP (1) EP1902820A2 (fr)
JP (1) JP2008073844A (fr)
DE (1) DE102006044610B4 (fr)

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CN111705499A (zh) * 2020-03-23 2020-09-25 三明市宏立机械制造有限公司 一种刀辊调压防跳动装置

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Publication number Priority date Publication date Assignee Title
CN107088921A (zh) * 2017-05-05 2017-08-25 江苏国光纺织科技有限公司 一种标签折边切割一体机
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