EP0003984A2 - Procédé et appareil pour découper des pièces dans une bande - Google Patents

Procédé et appareil pour découper des pièces dans une bande Download PDF

Info

Publication number
EP0003984A2
EP0003984A2 EP79100470A EP79100470A EP0003984A2 EP 0003984 A2 EP0003984 A2 EP 0003984A2 EP 79100470 A EP79100470 A EP 79100470A EP 79100470 A EP79100470 A EP 79100470A EP 0003984 A2 EP0003984 A2 EP 0003984A2
Authority
EP
European Patent Office
Prior art keywords
punching
web
roller
abutment
knife
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.)
Granted
Application number
EP79100470A
Other languages
German (de)
English (en)
Other versions
EP0003984B1 (fr
EP0003984A3 (en
Inventor
Gerhard Tiemann
Knut Kammann
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.)
Werner Kammann Maschinenfabrik GmbH and Co KG
Original Assignee
Werner Kammann Maschinenfabrik GmbH and Co KG
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 Werner Kammann Maschinenfabrik GmbH and Co KG filed Critical Werner Kammann Maschinenfabrik GmbH and Co KG
Publication of EP0003984A2 publication Critical patent/EP0003984A2/fr
Publication of EP0003984A3 publication Critical patent/EP0003984A3/xx
Application granted granted Critical
Publication of EP0003984B1 publication Critical patent/EP0003984B1/fr
Expired legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • 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
    • B26F1/40—Cutting-out; Stamping-out using a press, e.g. of the ram type
    • B26F1/42—Cutting-out; Stamping-out using a press, e.g. of the ram type having a pressure roller
    • 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
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/74—Auxiliary operations
    • B31B50/81—Forming or attaching accessories, e.g. opening devices, closures or tear strings
    • B31B50/82—Forming or attaching windows
    • B31B50/83—Cutting window openings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/02—Other than completely through work thickness
    • Y10T83/0333—Scoring
    • Y10T83/0341—Processes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/04—Processes
    • Y10T83/0515—During movement of work past flying cutter
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/465—Cutting motion of tool has component in direction of moving work
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/465—Cutting motion of tool has component in direction of moving work
    • Y10T83/4757—Tool carrier shuttles rectilinearly parallel to direction of work feed
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/465—Cutting motion of tool has component in direction of moving work
    • Y10T83/4766—Orbital motion of cutting blade
    • Y10T83/4795—Rotary tool
    • Y10T83/483—With cooperating rotary cutter or backup
    • Y10T83/4838—With anvil backup
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/788—Tool pair comprises rotatable anvil and fixed-type tool
    • Y10T83/793—Anvil has motion in addition to rotation [i.e., traveling anvil]

Definitions

  • the invention relates to a method for punching blanks from a path which is moved uniformly in their longitudinal direction and is passed between a punching knife and an abutment, and to a device which is suitable for carrying out this method.
  • Such methods and devices are used, for example, for the production of labels or other stickers, signs and the like.
  • the web can first be printed.
  • the individual - e.g. B. corresponding to the printed images - blanks are punched out of the web, which generally consists of two layers.
  • the invention is based inter alia on the object of designing the method and device of the type described at the outset in such a way that punching out blanks from continuously moving webs with a high throughput is possible even when using punching tools which are inexpensive to produce.
  • the aim is that There are no restrictions regarding the size of the distance between the individual blanks, although the use of rotating punching knives is not used. So z. B. there is the possibility of punching the blanks out of the web without spacing or even overlapping one another.
  • the punching tool should be cheap and quick to replace in production, so that the time required for converting the machine, for example when changing from one label shape to another label shape, remains low.
  • the length and shape of the blank all the possibilities should exist, which are given in known methods and devices.
  • special measures should be applicable without difficulty, which make it possible to separate the sheet-like material from the punching tool after the cutting process.
  • the invention proposes that the punch knife be lowered onto the web and, during the punching process in the direction of travel of the web, be moved synchronously over a distance which is smaller than the length of the blank, from an initial position to an end position, whereupon the punch knife is lifted off the web and moved back to its starting position.
  • This procedure ensures that the speed at which the punching process is carried out in the longitudinal direction of the web is greater than the running speed of the web, so that with appropriate selection and coordination of the speeds it is possible to vary the distances between the individual blanks , if necessary down to zero or even to the extent that the printed images overlap one another with their facing end regions.
  • a simple flat punch can be used, which can be produced in a simple and cost-effective manner even for cuts which are very irregularly limited.
  • the method can be carried out in such a way that the abutment consisting of at least one roller is displaced during the punching process against the direction of movement of the web or the punching knife.
  • the strokes and speeds of the punching knife and the abutment roller add up.
  • the time required to carry out the punching process can additionally be reduced in that two or more abutment rollers, which are arranged at a short distance from one another, interact with the punching knife. In this case, when the punch knife was lowered onto the abutment rollers, several partial cuts would first be made on the web, which would be supplemented in the course of the subsequent opposite movements of the parts to form the finished punch cut.
  • This method can also be used if several stationary abutment rollers are used, which, however, like the other methods, are rotatably arranged.
  • the web can be guided tangentially past the abutment roller or rollers. However, it is also possible to guide the web around the partial circumference of a roller serving as an abutment and to roll it on the punching knife during the punching stroke.
  • the method can be carried out in such a way that the web section entering the punching machine and the web section running out of the punching machine are parallel to one another and at an acute angle to the substantially horizontally arranged punching knife, at least in the area within which the abutment roller is displaced during the punching stroke run downwards and the punching tool consisting of punching knife and abutment roll and a deflection roll is moved at least during the punching stroke parallel to the sections of the web running at an acute angle to the plane of the punching knife.
  • This procedure will be advantageous when it comes to the web immediately after the punching process at an acute angle away from the generally flat punching knife so that a separation between the punching knife and the web takes place as quickly as possible, which favors the quality of the separating cut and thus in particular the formation of clean cut edges on the blanks.
  • Such an inclined removal of the web section from the punching knife and the abutment roller would, however, result in a change in the web speed on the punching knife if the latter were displaced in the horizontal plane during the punching process, so that the synchronism between movement of the punching knife on the one hand and movement of the Web on the other hand would not be guaranteed.
  • the invention takes this into account by the process described above, in which the result is that the movement of the abutment roller and thus the entire punching tool takes place parallel to the course of the web-like material, the latter taking up between the generally roller-shaped or roller-shaped guide elements which the Guide the web in front of and behind the punching tool.
  • the angle at which the two aforementioned web sections run is advantageously between 0 and 20 ° with respect to the horizontal or the punching knife.
  • the above-described method can be carried out using a device which has a lifting and lowering punching knife and an abutment arranged on the side of the web facing away from the punching knife and is characterized in that the punching knife can be moved back and forth with an adjustable stroke.
  • the abutment can also be arranged such that it can be moved back and forth with an adjustable stroke.
  • it can also consist of a plurality of rollers which can be rotated and arranged in a stationary manner next to one another at small intervals, the area within which the rollers are arranged being at least as large as the dimension of at least one blank.
  • the abutment consists of at least one roller which is arranged so as to be displaceable counter to the punching knife during the punching stroke.
  • the abutment is plate-shaped, here also it corresponds to the dimensions of at least one blank and can be moved synchronously with the punching knife at least during the punching stroke.
  • the invention therefore provides for the possibility that the abutment roller and / or roller (s) during the punching operation in response to the speed at which they are displaceable relative to the web-shaped material with respect to their Rota - tion are driven motion.
  • Another possibility is to derive the rotary movement of the abutment roller during the punching process from the stroke movement of the punch knife.
  • Such an embodiment is unsuitable, since it has the consequence that the front and rear boundary-forming knife parts of the punching knife simultaneously run over the entire longitudinal extent extending transversely to the web onto the lateral surface of the abutment roller. This results in high stress on these knife parts. In addition, the quality of the cut at these points can also suffer.
  • the invention provides that the longitudinal axis (s) of the abutment roller (s) form an acute angle with the perpendicular to the punching knife parallel to the running direction of the web or include, which can be, for example, 5 - 10 °.
  • the longitudinal axis of the blank delimited by the punching knife encloses an acute angle with the longitudinal axis of the web. This means that the punching knife is slightly pivoted relative to the web, 5 or 10 ° being sufficient to achieve the desired effect.
  • a central drive can be provided for all movable parts of the device.
  • the running speed of the web-like material can be adapted to the speed of the punching knife by means of an adjustable gear which is switched on in the drive transmission for the web-like material.
  • the means for transmitting the drive to the holder for the punching knife and / or the holder for the abutment and possibly any deflection rollers to be adjustable and / or replaceable.
  • the normal procedure is to first print a two-layer web 25 on one side.
  • the individual labels are then separated out from that of the layers 93, 94 which adhere to one another by adhesive and carry the print.
  • the labels 95 cut in this way initially adhere to the layer 93, which serves as a carrier web. They will later be removed from the carrier layer 93 in the usual manner. That after removing the labels 95 and lifting the two layers 93 and 94 resulting residual band are derived in a suitable manner.
  • the individual labels 95 are separated from the layer 94 by means of a punch knife 15 which is carried by a holder 16.
  • the course of the cutting edges 23, 29 of the punching knife 15 corresponds to the outline of the finished labels.
  • the punching knife 15 interacts with an abutment roller 17, which is assigned a deflection roller 18.
  • Abutment roller 17 and deflection roller 18 are carried by a carriage 13 (see FIGS. 1 and 2 and FIGS. 4a to 4f), which can be moved back and forth on two bars 12, which are inclined at an angle of approximately 15 ° to the horizontal is.
  • the spars 12 are attached to the frame of the punching device.
  • the carriage 13 is provided with eyes or the like 14, which encompass the spars.
  • This first slide 13 is provided with two horizontal bars 19, which are arranged within a cutout 20 in the first slide 13.
  • other guide means and arrangements thereof are also possible.
  • a second carriage 21 is guided to move back and forth, which carries the holder 16 of the punching knife 15 with the interposition of a cylinder-piston arrangement 22.
  • the arrangement is such that a support element 24 is provided, on which the holder 16 is attached in a height-adjustable manner.
  • the roller 17 serving as an abutment roller is located directly below the punching sea 15, which cuts in its lower end position into the upper layer 94 of the web 25 in the region of the upper vertex of the roller 17.
  • the drive of the punching device is derived from a main drive shaft 26 (FIGS. 1 and 2) which is driven by a motor 28 via a gear 27.
  • a shaft 30 is fastened to the shaft 26 and is provided on its side facing the motor 28 with a cam 32, with which a cam roller, a cam or the like 34 cooperates, which at one end of one in the frame 11 36 mounted double-armed lever 38 is attached.
  • the second carriage 21 is provided with a vertical slot 40 into which a cam roller 44 or the like carried by the second arm 42 of the lever 38 engages.
  • a pivoting of the lever 38 caused by the curve 32 thus results in a to-and-fro movement of the second slide 21.
  • the course of the curve 32 is selected such that the second carriage 21 and thus the punch knife 15 move at a constant speed during the punching process, provided that the speed at which the web 25 is moved matches that of the punch knife 15 is adjusted during the punching stroke.
  • the cam or the like 44 is adjustably attached to the arm 42 in the longitudinal direction. With increasing distance of the cam roller 44 from the fulcrum 36, the stroke and speed of the second carriage 21 and thus of the punching knife 15 become greater. With the size of the stroke, the extent of the blank to be removed in the course of a stroke in the longitudinal direction of the web 25 can also be increased.
  • the first slide 13 is driven by an adjustable crank arm 46, which is rotatably mounted on the disk 30, but on the side facing away from the curve 32, and carries a curve roller or the like 50 at its free end, which engages in a in the main slide 13 located slot 52 attacks.
  • the latter runs perpendicular to the spars 12 and thus perpendicular to the path which the carriage 13 travels in the course of its back and forth movement.
  • the effective length of the crank arm between the bearing point 48 and the cam roller 50 can be adjusted, specifically by means of the corresponding adjustability of the bearing point 48 on the disk 30 that is continuously rotatable by the drive shaft 26.
  • a gear 56 is fixed, which drives the drive gear 58 of a variable transmission 59 via a chain or the like. 57, the drive shaft 64 via the gear 65 chains or the like. 66, 68, 70 and associated gears 72, 74 and 76 a supply roll 78 from which the web 25 to be treated is unwound, a roll 80 on which the carrier web 93 with the blanks 95 adhering thereto is wound and drives a drive roller 82 by means of which carrier web 93 and thus web 25 are pulled out of the punching tool become.
  • the remaining strip 98 remaining after the cuts 95 have been cut out of the layer 94 is discharged via a roller 99, which can also be driven by suitable transmission means, for example, by the shaft 84.
  • the separation between the carrier web 93 and the remaining web 98 takes place by pulling off the remaining web 98 from the layer 93 and the labels 95 remaining thereon.
  • a roller 97 is provided to fix the area in which this separation takes place.
  • a flexible transmission element 86 for. B. drives a chain that engages with gears 85, 87 and 89.
  • the gears 87 and 89 are firmly connected to the shafts supporting the abutment roller 17 and the deflection roller 18, respectively.
  • the gear 85 is fixedly connected to a shaft carrying a drive roller 88, so that the chain or the like 86 drives the drive roller 88 as well as the abutment roller 17 and the deflection roller 18.
  • a relative reciprocation of the two rollers 17 and 18 in the direction of arrows 67 and 69 thus inevitably results in an adaptation of the peripheral speed of the two rollers to the relative speed at which the rollers 25 and 18 move the web 25 on the lateral surfaces of the two rollers.
  • the arrangement will be such that a slip clutch (not shown in the drawing) is arranged between the gear wheels 72 and 74 on the one hand and the two spars 78 and 80 on the other hand, since the circumferential speeds of the rolls change in the course of unwinding or winding 78 and 80 a precise setting of the respectively desired web speed is not possible anyway through the drives assigned to these two rollers.
  • the speed of the web 25 between the two rollers 78 and 80 which must be adapted to the speed at which the punching knife 15 moves during the punching stroke, is rather determined by the rollers 17, 18, 82 and 88.
  • FIGS. 4a to 4f show the sequence of the punching process during a work cycle in the diagram.
  • the parts belonging to the punching unit that is to say holder 16 with punching knife 15, abutment roller 17 and reversing roller 18 and, moreover, first carriage 13 and the web 25 are shown in the diagram.
  • reference lines A to D are assigned to the punching tool at equal intervals, which make the extent of the movements of the parts of the punching machine, that is to say the carriage 13 with rollers 17 and 18 on the one hand, and the holder 16 with punching knife 15 on the other hand more recognizable .
  • a reference scale 63 is assigned to the web 25 running from the abutment roller 17 in order to make the movement of the web 25 recognizable.
  • Figure 4a shows the position of the parts at the beginning of the work cycle.
  • the punching knife 15 is lowered onto the web 25 in the region of the upper vertex of the abutment roller 17.
  • the carriage 13 with the abutment roller and reversing roller 18 assumes the left end position.
  • the carriage 13 is moved in the direction of arrow 67 and the holder 16 with punch knife 15 simultaneously in the direction of arrow 62, that is to the left, with both movements overlapping with respect to the punch knife 15, since the latter over the second carriage 21 is guided on the slide 13.
  • the length of a blank in the longitudinal direction of the web 25 should correspond to the length of the scale 63 (0-4).
  • the G pension zen of the 'separate out in the penultimate cycle blank are identified by the two points 81 and 83 thereof.
  • the blank cut out in the immediately preceding working cycle is located in the area between point 83 and the upper vertex of the abutment roller 17 and corresponds to the distance X in FIG. 4a.
  • the abutment roller 17 has moved from the starting position A (FIG. 4a) to the intermediate position B (FIG. 4b) in the course of the first phase of the punching process, both parts being moved counter to the running direction 68 of the web 25.
  • the punching knife 15 is shifted in the opposite direction by a distance which corresponds to approximately half its total stroke, so that the longitudinal section X separated from the web in the course of this working phase between the point 79 and that in the working position according to FIG. 4a on the upper vertex the abutment roller 17 was lying, and that now, ie in the position of the parts according to FIG.
  • the point of the web lying on the upper vertex of the roller 17 is greater than the distance by which the web moves in the direction of arrow 68 during this period had been.
  • the section X which runs in the longitudinal direction of the web 25 and is separated during the first half of the punching stroke, is approximately twice as long as the distance O-1 of the scale 63 by which the web 25 has advanced in the same time.
  • Figure 4c shows the position of the parts at the end of the punch stroke.
  • Abutment roller 17 and punching knife 15 have each been shifted again approximately by the distance that lies between the working positions according to FIGS. 4a and 4b.
  • the abutment roller 17, which rotates in the direction of arrow 73 during the punching stroke, is located on the line C.
  • the punching knife 15 assumes its left end position.
  • the longitudinal section cut out in the course of this punching stroke is designated Z and corresponds to the distance O - 4 of the scale 63.
  • the web 25 has been advanced only one distance in the direction of arrow 68 during this entire punching stroke in such a way that the one marked with the triangle Point 83 is now located approximately at mark 2 on the scale 63.
  • FIG. 4d shows the parts in the position corresponding to FIG. 4c, but the punching knife 15 is now lifted off the web 25 in the direction of the arrow 75.
  • the slide 13 is then moved back in the direction of the arrow 69.
  • the slide 23 moves back relative to the slide 13.
  • FIG. 4e shows an intermediate position in the course of this stroke of the mutually interacting parts of the punch, opposite the punch stroke.
  • the speed at which the carriage 13 is moved back into its starting position in the direction of the arrow 69 is greater than the speed of the web 25 when the blanks are cut out without spacing.
  • the resultant advance of the abutment roller 17 has the consequence that if the parts in Figure 4f have reached the position shown at the end of the return stroke, the end facing the punch of the just previously cut blank, which is indicated in Figures 4d to 4f by point 77, in the direction of rotation 73 of the abutment roller 17 just before the upper vertex of the Roller 17 is located.
  • the time required to move the web 25 further so that the point 77 is at the apex of the roller 17 is used to lower the punch knife 15 onto the web 25.
  • Length and speed of the strokes carried out by the two slides 13 and 21 depend on the setting of the two cam rollers, cams or the like. 44 and 50 relative to the associated recesses 40 and 52.
  • the length of the punching knife 15 and abutment roller 17 during the punching process The strokes performed determine the length of the resulting total stroke R (FIG. 4a) and thus the dimension of the blank in the longitudinal direction of the web 25. It follows that when the length of the blank changes, at least the stroke of the punching knife 15 or of the slide 21 is corresponding must be adjusted, which in turn results in a change in the speed of the punching knife during the punching process.
  • the web speed must therefore be adapted to that of the punching knife.
  • This is expediently done by appropriate adjustment of the variable gear 59, whose drive wheel 58 is driven at a constant speed, but whose output shaft 64 rotates depending on the gear setting selected in each case.
  • Another possibility of adaptation is to replace curve 32 or the disk 30 carrying it and thus to change the drive conditions of the punching knife 15 and, if applicable, the abutment roller 17 and the deflection roller 18.
  • both options can also be combined.
  • FIGS. 7 to 10 This also applies to the embodiments shown in FIGS. 7 to 10, which differ from that according to FIGS. 1 to 6 essentially by the design and / or the movement of the abutment.
  • the abutment roller 17 is assigned two deflection rollers 18, one of which is arranged in the running direction 68 of the web 25, one in front and the other behind the abutment roller. All of the rollers 17 and 18 are carried by the carriage 13. The back and forth movements of the roller 17, 18 on the one hand and the holder 16 with punching knife 15 on the other hand take place in the direction of the arrows 60 and 62, that is to say in the horizontal plane. The holder 16 is arranged to be moved up and down in the usual manner.
  • the abutment is also designed as a roller 17.
  • the movement sequence of the punching knife 15 and the abutment roller 17 corresponds to that of the exemplary embodiment according to FIG. 7, i.e. both parts can be moved back and forth in the direction of the arrows 60, 62 in the area between the drive or deflection rollers 82, 88.
  • the abutment consists of three abutment rollers 17 arranged side by side in a plane in the longitudinal direction of the web 25, which are rotatable at least in the direction of arrow 73, but in contrast to the other exemplary embodiments, stationary between the drive or deflection rollers 82, 88 are arranged.
  • the punch knife 15 is arranged in the usual manner in the direction of arrow 62 during the punching process and on the return stroke in the opposite direction to reciprocate.
  • the length of the area in the stroke direction 62 of the punching knife 15, in which the rollers arranged parallel to one another are provided, will be slightly longer than the length of the largest blank that is to be punched out using this tool.
  • the distances between the abutment rollers 17 can be greater, the greater the stroke of the punching knife 15.
  • the distance between the rollers and thus their number will be selected so that the distance over which the punch knife 15 is moved synchronously with the web 25 is short enough to bring the punch knife 15 back into the starting position early enough.
  • the arrangement can also be such that the punching knife 15 is formed by three partial punching knives arranged one behind the other in the longitudinal direction of the web 25, each of which cuts a partial blank out of the web 25.
  • One of the rollers 17 can be assigned to each part punching knife.
  • the partial punching knives can be formed simply by providing two transverse cutting edges between the two ends of the punching knife 15 at a distance therefrom and from one another.
  • FIGS. 10 to 12 of the drawing show the course of the cutting edges of the punching knife 15 for punching out a rectangular blank.
  • the two cutting sections 23 produce the longitudinal boundaries of the blank 95, whereas the cutting sections 29 lying at the front and rear carry out the separating cuts at the boundaries 35 lying at the front and back.
  • the punching knife 15 is arranged on the holder 16 in such a way that its longitudinal axis - and thus also the longitudinal axis of each blank 95 - forms an acute angle with the longitudinal axis of the web 25.
  • FIG. 10 to 12 of the drawing show the course of the cutting edges of the punching knife 15 for punching out a rectangular blank.
  • the two cutting sections 23 produce the longitudinal boundaries of the blank 95, whereas the cutting sections 29 lying at the front and rear carry out the separating cuts at the boundaries 35 lying at the front and back.
  • the punching knife 15 is arranged on the holder 16 in such a way that its longitudinal axis - and thus also the longitudinal axis of each blank 95 - forms an
  • F ig. 14 shows that an insert 37 made of foam rubber or similar material, which is easily elastically deformable, is arranged within the space delimited by the cutting sections 23 and 29.
  • the height of this insert corresponds approximately to the height by which the punch knife 15 protrudes relative to the holder 16.
  • This foam rubber insert is slightly compressed between the holder 16 and the abutment roller 17 or web 25 during the cutting process. As soon as the foam rubber insert 37 has passed the abutment roller, it returns to its original shape with an increase in volume, the web 25 being pressed off by the punching knife 35.
  • FIG. 12 shows another embodiment, which also serves to cause the front and rear cutting sections 29 of the punching knife 15 to run onto the abutment roller 17 at an acute angle.
  • the abutment roller is pivoted somewhat from the normal position running perpendicular to the longitudinal axis of the web 25, so that the longitudinal axis of the roller 17 is at an angle of a few degrees, e.g. 5 to 10 °.
  • the cutting elements 29 and 23 delimiting the punching knife 15 can run perpendicularly or parallel to the longitudinal course of the web 25, with the result that less waste is produced.
  • FIG. 13 shows a screen printing machine with three printing stations 201, 202, 203 and a station 204 in which the labels are punched out using a device according to FIGS. 1 to 6.
  • the web 225 to be treated is drawn off from a supply roll 278 and passed through the three printing units 201 to 203 and then through the punching station 204 in a continuous run.
  • the base layer of the double-layered web 225 is wound up on a roll 280 after the separation process.
  • the remaining web 298 remaining after the labels have been removed from the printed layer is rolled up from a supply roll 296.
  • the machine shown in Fig. 13 allows three colors or other coatings to be applied.
  • the individual printing stations are designed as described in connection with FIGS. 1 and 2, with the difference that a screen printing stencil takes the place of the punching knife and a doctor blade 216 is additionally provided.
  • Abutment rollers 217 and deflection rollers 218 of all stations, guide rollers 282 and 288 and, if appropriate, still located between the stations, rollers not shown in the drawing are expediently driven by a common drive, so that the flexible transmission element 86 of FIG. 3 with all gear wheels or the like. , which are assigned to the abutment rollers 217 and the deflection rollers 218 of the printing stations 201 to 203 and the separation station 204, and to the gears of the guide rollers.
  • the only decisive factor here is that the flexible transmission element is in the areas within which the abutment rollers 217 and deflection rollers 218 of all stations are moved runs parallel to path 225, as was described in connection with FIG. 3.
  • the separating station 204 could also be connected upstream of the first printing station 201, so that the web-shaped material to be printed consists of a carrier web on which individual blanks that are to be printed adhere.
  • the invention is in no way limited to the use of two-layer webs. Rather, it can be used wherever it is important to punch blanks from uniformly moving webs, regardless of how the punched blanks are treated or transported further after the punching process.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Screen Printers (AREA)
  • Details Of Cutting Devices (AREA)
EP79100470A 1978-03-11 1979-02-19 Procédé et appareil pour découper des pièces dans une bande Expired EP0003984B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19782810713 DE2810713A1 (de) 1978-03-11 1978-03-11 Verfahren zum ausstanzen von zuschnitten aus einer bahn und vorrichtung zu dessen durchfuehrung
DE2810713 1978-03-11

Publications (3)

Publication Number Publication Date
EP0003984A2 true EP0003984A2 (fr) 1979-09-19
EP0003984A3 EP0003984A3 (en) 1979-10-03
EP0003984B1 EP0003984B1 (fr) 1981-10-14

Family

ID=6034230

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79100470A Expired EP0003984B1 (fr) 1978-03-11 1979-02-19 Procédé et appareil pour découper des pièces dans une bande

Country Status (5)

Country Link
US (2) US4245538A (fr)
EP (1) EP0003984B1 (fr)
JP (1) JPS54128087A (fr)
BR (1) BR7901461A (fr)
DE (1) DE2810713A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2578386A4 (fr) * 2010-05-25 2016-08-03 Totani Corp Machine de fabrication de sacs

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4370140A (en) * 1979-03-28 1983-01-25 Paco Winders, Inc. Paper tube cut off saw
JPS6067099A (ja) * 1983-09-21 1985-04-17 日東電工株式会社 複合板の打ち抜き法
US4494435A (en) * 1983-09-23 1985-01-22 Ned Lindsay Cutting device
JPS61163198U (fr) * 1986-03-14 1986-10-09
JPS62246723A (ja) * 1986-04-18 1987-10-27 光洋自動機株式会社 打ち抜きラベル等の製造方法
GB2198073B (en) * 1986-11-28 1990-01-24 Redland Roof Tiles Ltd Improvements in cutting mechanisms
JP2552994B2 (ja) * 1992-10-29 1996-11-13 アイセル株式会社 打抜き方法及び打抜き装置
US5440613A (en) * 1992-12-30 1995-08-08 At&T Corp. Architecture for a cellular wireless telecommunication system
DE69522309T2 (de) * 1994-12-21 2002-05-02 King Jim Co., Ltd. Verfahren und Vorrichtung zur Abtrennung eines Halterstreifens von einem Klebestreifen
JPH08229887A (ja) * 1994-12-27 1996-09-10 Seiko Epson Corp 積層シートのカット方法およびその装置
DE29717843U1 (de) * 1996-10-07 1998-01-08 Seiko Epson Corp., Tokio/Tokyo Druckmedium
DE19813994A1 (de) * 1998-03-28 1999-09-30 Etimark Gmbh Verfahren zum Erzeugen von Ausstanzungen in Etiketten und Vorrichtung zu seiner Durchführung
DE19944273A1 (de) * 1999-09-15 2001-04-05 Alcan Gmbh Verfahren zum Ausstanzen von Ausschnitten aus zumindest einer Materialbahn
DE19958274B4 (de) * 1999-12-03 2006-11-23 Hengstler Gmbh Abschneider für klebende Etiketten
DE10311219A1 (de) 2003-03-14 2004-09-30 Werner Kammann Maschinenfabrik Gmbh Verfahren und Vorrichtung zum Bedrucken einer Bahn
WO2008120804A1 (fr) * 2007-04-02 2008-10-09 Seiji Kagawa Film plastique pouvant être déchiré linéairement, et procédé et dispositif pour le produire
FR2914213B1 (fr) * 2007-04-02 2009-06-05 Forest Line Capdenac Soc Par A Dispositif de separation et d'evacuation des chutes decoupees dans une bande de preimpregne.
US20090074994A1 (en) * 2007-09-14 2009-03-19 Mclean Linda L Kit for Decorating A Car
JP5894532B2 (ja) * 2009-09-28 2016-03-30 テク・インダストリーズ，インコーポレーテッド 共通の刃を備えるダイカット
JP6583264B2 (ja) * 2014-03-18 2019-10-02 コニカミノルタ株式会社 パターンカット装置
US10751935B2 (en) * 2018-06-01 2020-08-25 Xerox Corporation Substrate blank shearing and precise stack location apparatus and method for web fed presses

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1204060B (de) * 1961-07-25 1965-10-28 Machines Speciales S A Soc Et Stanzvorrichtung fuer bahnfoermiges Material aus Papier, Pappe od. dgl.
AU4803264A (en) * 1963-09-20 1966-02-17 Ab Tetra A device for producing a locally defined stamped and / or printed pattern repeated at predetermined intervals on a moving web of sheet material

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1292311A (en) * 1914-08-25 1919-01-21 Thomas L Green Biscuit cutting and embossing machine.
US1440581A (en) * 1920-03-29 1923-01-02 United Shoe Machinery Corp Cutting machine
US2770203A (en) * 1949-11-09 1956-11-13 Ooms Hugo Theodore Guillaume Biscuit-cutting machines
GB951062A (en) * 1959-07-10 1964-03-04 Ferdinand Ruesch A new or improved punching machine
FR1303073A (fr) * 1961-07-25 1962-09-07 Etudes De Machines Speciales Perfectionnements aux dispositifs de découpage par filets
US3322011A (en) * 1964-06-15 1967-05-30 Yoder Co Flying punch
US3668963A (en) * 1970-11-23 1972-06-13 Xerox Corp Adjustable label knife
DE2429802A1 (de) * 1974-06-21 1976-01-08 Gundernhausen Chemie Vorrichtung zum ausstanzen von flaechenstuecken aus einer materialbahn, insbesondere teppichbahn
DE2712886C3 (de) * 1977-03-24 1980-09-25 Grebenstein Gmbh, 3257 Springe Stanzpresse zum Stanzen von halbharten Stoffen

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1204060B (de) * 1961-07-25 1965-10-28 Machines Speciales S A Soc Et Stanzvorrichtung fuer bahnfoermiges Material aus Papier, Pappe od. dgl.
AU4803264A (en) * 1963-09-20 1966-02-17 Ab Tetra A device for producing a locally defined stamped and / or printed pattern repeated at predetermined intervals on a moving web of sheet material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2578386A4 (fr) * 2010-05-25 2016-08-03 Totani Corp Machine de fabrication de sacs

Also Published As

Publication number Publication date
DE2810713C2 (fr) 1987-05-27
JPS54128087A (en) 1979-10-04
EP0003984B1 (fr) 1981-10-14
BR7901461A (pt) 1979-10-09
US4331055A (en) 1982-05-25
US4245538A (en) 1981-01-20
EP0003984A3 (en) 1979-10-03
JPS6128480B2 (fr) 1986-06-30
DE2810713A1 (de) 1979-09-13

Similar Documents

Publication Publication Date Title
EP0003984B1 (fr) Procédé et appareil pour découper des pièces dans une bande
DE2264633A1 (de) Vorrichtung zum falzen und schneiden duennen streifenmaterials
EP0003983B1 (fr) Appareil et procédé d'impression par sérigraphie
DE2732352A1 (de) Verfahren und vorrichtung zur herstellung von farbmusterkarten
EP0429884A1 (fr) Plieuse pour machine d'impression
EP0664208A2 (fr) Appareil pour la production d'un tuyau multicouche pour fabrication de sacs
DE102006016266B3 (de) Vorrichtung zur Bearbeitung einer laufenden Materialbahn
DE2402836C2 (de) Siebdruckvorrichtung mit wenigstens zwei Druckstationen
DE2530360A1 (de) Siebdruckvorrichtung
DE2715794C2 (de) Querschneidvorrichtung
EP0329089A1 (fr) Dispositif d'alimentation en papier pour une imprimante rapide utilisant des feuilles individuelles
DE2160297A1 (de) Verfahren und vorrichtung zum registerhaltigen querschneiden kontinuierlich fortbewegter etiketten-, folienbaender oder dgl. in flaschenausstattungsmaschinen
DE869210C (de) Druckmaschine fuer veraenderliche Formate
DE445179C (de) Maschine zur Herstellung von Schachtelzuschnitten aus einer ununterbrochen zugefuehrten Kartonbahn
DE3116527A1 (de) Geraet zum schneiden von schleifpapierstuecken
DE2542713C3 (de) Vorrichtung zum Querschneiden von Materialbahnen und Stapeln von Material-Stücken
DE2112807B2 (de) Vorrichtung zum Bedrucken bzw. Formstanzen von direkt aufeinanderfolgenden Abschnitten einer Materialbahn
CH386986A (de) Verfahren und Vorrichtung zum Beschneiden von nach Drucken, Falten und Heften intermittierend abgegebenen Druckschriften wie Zeitungen, Zeitschriften, Broschüren und dergleichen
DE59928C (de) Neuerungen an Rotationsdruckmaschinen
DD252361A1 (de) Stanz- und laengsschneidvorrichtung fuer rotationsfalzer
DE216954C (fr)
DE411108C (de) Rotationsdruckmaschine zum Herstellen von Karten aus Papierbahnen o. dgl.
DE2502077A1 (de) Verfahren und vorrichtung zur aenderung des formats von zu bedruckendem bahnmaterial waehrend des betriebs, insbesondere zum kontinuierlichen drucken
EP0508199B1 (fr) Procédé et dispositif pour la fabrication continue d'un feuillard en forme de métal déployé
DE458633C (de) Schachtelbeklebemaschine mit durch Steuerungstrommeln bewegten, auf einem Schlitten verstellbar angeordneten Werkzeugvorrichtungen

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): CH FR GB IT NL SE

AK Designated contracting states

Designated state(s): CH FR GB IT NL SE

17P Request for examination filed
ITF It: translation for a ep patent filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): CH FR GB IT NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19811014

Ref country code: SE

Effective date: 19811014

ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19901130

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19910228

Year of fee payment: 13

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19920219

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19920901

GBPC Gb: european patent ceased through non-payment of renewal fee
NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19930524

Year of fee payment: 15

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Effective date: 19940228

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT