EP0101366B1 - Machine pour la découpe de pièces dans une matière en bande - Google Patents

Machine pour la découpe de pièces dans une matière en bande Download PDF

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Publication number
EP0101366B1
EP0101366B1 EP83401589A EP83401589A EP0101366B1 EP 0101366 B1 EP0101366 B1 EP 0101366B1 EP 83401589 A EP83401589 A EP 83401589A EP 83401589 A EP83401589 A EP 83401589A EP 0101366 B1 EP0101366 B1 EP 0101366B1
Authority
EP
European Patent Office
Prior art keywords
cutting
band
strip
roller
machine according
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.)
Expired
Application number
EP83401589A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0101366A1 (fr
Inventor
Jean-Pierre Jumel
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.)
AEROSPATIALE SOCIETE NATIONALE INDUSTRIELLE TE PAR
Original Assignee
Airbus Group SAS
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 Airbus Group SAS filed Critical Airbus Group SAS
Publication of EP0101366A1 publication Critical patent/EP0101366A1/fr
Application granted granted Critical
Publication of EP0101366B1 publication Critical patent/EP0101366B1/fr
Expired legal-status Critical Current

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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
    • B65H20/00—Advancing webs
    • B65H20/02—Advancing webs by friction roller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H16/00—Unwinding, paying-out webs
    • B65H16/10—Arrangements for effecting positive rotation of web roll
    • B65H16/106—Arrangements for effecting positive rotation of web roll in which power is applied to web roll
    • 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
    • B65H35/0006—Article or web delivery apparatus incorporating cutting or line-perforating devices
    • B65H35/0073—Details
    • B65H35/008—Arrangements or adaptations of cutting devices
    • B65H35/0086—Arrangements or adaptations of cutting devices using movable cutting elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/415—Unwinding
    • B65H2301/41518—Performing unwinding process
    • B65H2301/415185—Web unwound being guided over (pivoting) guide resting on the roller diameter
    • 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
    • Y10T83/202—With product handling means
    • Y10T83/2074—Including means to divert one portion of product from another
    • Y10T83/2083—Deflecting guide
    • Y10T83/2085—Positionable gate in product flow path
    • 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
    • Y10T83/444—Tool engages work during dwell of intermittent workfeed
    • Y10T83/4455—Operation initiated by work-driven detector means to measure work length
    • 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
    • Y10T83/444—Tool engages work during dwell of intermittent workfeed
    • Y10T83/4475—Tool has motion additional to cutting stroke during tool cycle
    • Y10T83/4478—Tool has additional motion during work dwell
    • 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
    • Y10T83/525—Operation controlled by detector means responsive to work
    • Y10T83/54—Actuation of tool controlled by work-driven means to measure work length
    • 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
    • Y10T83/647—With means to convey work relative to tool station
    • Y10T83/6539—With means for transverse positioning of work on a moving conveyor
    • 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
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8742—Tool pair positionable as a unit
    • 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
    • Y10T83/889—Tool with either work holder or means to hold work supply
    • Y10T83/896—Rotatable wound package supply

Definitions

  • the present invention relates to a machine intended to cut transversely, along a straight or broken cutting line, a strip material capable of being advanced parallel to its length.
  • machines of this type comprising, on the one hand, a flat horizontal surface on which the material can be advanced. strip to be cut transversely and, on the other hand, an equipment transverse to said strip material, rotatably mounted about a vertical axis centered with respect thereto and carrying a cutting system animated by a back and forth movement - comes.
  • the object of the present invention is to remedy this drawback and it relates to a fully automated cutting machine, the automation of which can be ensured by numerical control and which can be integrated into an automated manufacturing process, said machine directly processing a strip unwound from a roll.
  • the machine intended to cut transversely, along a straight or broken, oblique or orthogonal cutting line, a strip material capable of being advanced parallel to its length and resting on a bearing surface at least substantially planar, said machine comprising an assembly rotatably mounted about an axis orthogonal to said bearing surface and carrying a cutting system animated back and forth transversely to said strip along a cutting edge, is remarkable in that it comprises, in combination, first means for unwinding said constant strip speed at linear linear linear speed, second means for, on the one hand, advancing said constant strip speed at constant linear speed on a fixed flat support which extends at least from said second means to the vicinity of the cutting system and, on the other hand, makes it possible to apply an edge of said strip against a lateral edge guide, and third means for measuring the length of strip which runs, said third means defining a reference line orthogonal to said strip and disposed at a predetermined fixed distance from said axis of rotation of said assembly, this axis of rotation passing through said
  • the advance of the strip in the direction of the cutting system can be precise, without sliding of the strip relative to the bearing surface, but with precise lateral guidance. Under these conditions, it can be seen that the machine according to the invention lends itself particularly well to automated operation.
  • said second means comprise a deformable pressure roller, which is applied by its generatrices to said strip and whose axis is inclined on the side of said selvedge guide. It is therefore understandable that such second pressure means impart to the strip a movement of advance having not only a longitudinal component, but also a transverse component directed towards the edge guide, and that the amplitude of this transverse component can be adjusted. , in particular as a function of the transverse rigidity of the material of the strip, by adjusting the pressure exerted by said pressure roller on said strip.
  • said third means cooperate with said second means and they comprise a cylindrical roller made of a rigid material against which said deformable roller is pressed and which is associated with a counter.
  • said length of strip which runs without sliding between the two rollers can be determined with precision from the number of revolutions made by the rigid roller and the length of the circular base of the latter.
  • said first means comprise a friction drive roller for the reel, mounted on a tilting arm, this roller and the deformable roller rotating at the same tangential speed.
  • the cutting tool is a rotary wheel applied against the cutting edge
  • the cutting system comprises a carriage movable along a rail
  • said wheel is mounted so as to be able to turn and slide on a shaft integral with the carriage and orthogonal to said rail, but eccentric relative to the latter, that said carriage can rotate at least in a limited manner around said rail, that the wheel is provided with a hub can roll on a workpiece clamp arranged along the cutting edge and that elastic means tend to separate the wheel and the carriage from one another.
  • the bearing surface of the cut pieces consists of two continuous conveyors spaced from each other and a movable deflector is provided which can take an inactive position for which certain cut pieces can pass from one conveyor to another by spanning the space between said conveyors and an active position for which said deflector forces other pieces to pass into the space between said conveyors.
  • the deflector can be mounted on tilting arms and be associated with a pressure roller mounted idly on said tilting arms and cooperating with the upstream conveyor in the active position of the deflector, in order to increase the adhesion of said parts to said upstream conveyor and therefore favor the passage of these between said carriers.
  • the machine according to the present invention shown in FIG. 1, comprises on the one hand an electromechanical execution assembly 1 and, on the other hand, a control unit 2, these two assemblies being able to be physically separated from one another and connected by connecting cables 3.
  • the control assembly 2 comprises a digital control 4 and a control bay 5.
  • the electromechanical assembly 1 of execution is provided with a frame 6 supporting at one of its ends a coil 7 of a strip material 8 to be cut into pieces 9, the front end of which can be delimited by lines straight or oblique, rectilinear or broken cutting edges, the rear end of which is delimited by straight or oblique cutting lines.
  • the coil 7 is provided with an axis 10 freely journalled on the frame 6, so as to allow the free unwinding of the strip 8.
  • the horizontal upper face of the frame 6 is formed by the succession (away from the roller 7 transversely to its axis 1) of a fixed plate 11, a turntable 12 and two endless conveyors 13 and 14.
  • the frame 6 supports a device 15 for unwinding the strip 8 from the reel 7, a device 16 for advancing and guiding the strip 8, with which the fixed plate 11 is associated, a cutting device 17 to which belongs the turntable 12, and a device 18 for sorting and evacuating the cut pieces with which the conveyors 13 and 14 are associated.
  • the unwinding device 15 (see also fig. 2) comprises a rubberized roller 21 frictionally driving the spool 7 and rotatably mounted at the end of an arm 22 around an axis 23 parallel to the axis 10 of the coil 7.
  • the arm 22 is itself articulated around a fixed axis 24, parallel to the axes 10 and 23, so that the rubberized roller 21 is pressed against the coil under the action of gravity, possibly reinforced by the action of elastic means not shown.
  • the device 16 for advancing and guiding the strip 8 (see also FIGS. 3 and 4) comprises a drive roller 26 driven by a motor 19 associated with a transmission 20, and cooperating with a metal roller 27.
  • the axes 28 and 29 of the rollers 26 and 27 lie in vertical planes parallel to the axis 10 of the reel 7 and these rollers press between them the strip 8, a pressure P being applied to the roll 26, using means known not shown.
  • the roller 27 is housed in an interruption of the plate 11, for substantially flush with the upper face of the latter.
  • an encoder or counter 30 is associated with the roller 27 to determine the number of revolutions of said roller and therefore the length of the strip 8 which runs on the plate 11.
  • the unwinding roller 21 of the reel 7, thanks to the transmission 20, is rotated by the same motor 19 as that which rotates the driving roller 26.
  • the diameters of the two rollers 21 and 26 and the transmission 20 which links are chosen so that the peripheral speeds of these two rollers 21 and 26 are equal to each other and constant.
  • the combination of the articulated arm 22 and the roller 21 ensures the unwinding of the reel 7 at constant speed, whatever the diameter of this reel, this constant reel speed being equal to the speed of advance of the strip 8 on the fixed plate 11. It will be noted that this device also makes it possible, during the operation of the machine according to the invention, to keep the portion of the strip 8 unwound between the rollers 21 and 26 without tension.
  • the device 16 for advancing the strip does not have to overcome the inertia of the reel 7, but only that of the portion of strip lying between the roller 21 and the cutting device 17 and that of the rigid roller 27 associated with the sensor 30.
  • the drive roller 26 is such that its axis 28, instead of being horizontal, is inclined in the direction of the edge guide of the angle s.
  • the roller 26 being applied against the strip 8, the radius r 2 with which it advances the strip 8 on the side of the edge guide 31 is smaller than the radius r, with which it advances the strip 8 on the side opposite to the guide edge 31.
  • the pressure P applied to the roller 26 generates, because of the obliquity of the axis thereof, a longitudinal component F ensuring the advance of the strip 8 and a transverse component T ensuring the application of the edge of said strip 8 against the edge guide 31 and therefore the lateral reference positioning of the strip 8.
  • the amplitude of the component T can be adjusted, which must be sufficient to ensure the correct lateral positioning of the strip 8, while being less than the transverse rigidity of the material of the strip 8, in order to avoid damaging the latter and consequently distorting said positioning.
  • the feed force F exerted by the feed device 16 may be low, so that the pressure P can be adjusted without inconvenience so that one obtains for the transverse component T the amplitude just sufficient for correct lateral positioning of the strip 8.
  • the drive roller 26 is made of a deformable material.
  • the obliquity of its axis 28 can be obtained by giving said roller either a conical shape or a cylindrical shape, but in the latter case, it is necessary to apply the pressure P in a differential manner, to communicate with the axis 28 the desired obliquity.
  • the cutting device 17 comprises a transverse and horizontal cylindrical rail 32 disposed above the upper surface 11, 12, 13, 14 of the frame 6 and secured to the turntable 12.
  • This horizontal rail 32 is parallel to an edge 33 of the turntable 12 serving as the cutting edge and used to guide a carriage 34 which can move in both directions along said rail 32, under the action of a motor or actuator not shown.
  • the carriage 34 carries a cutting tool 35, for example a thumbwheel, capable of following the cutting edge 33.
  • the crew 12, 32, 33, 34, 35 can rotate around a vertical axis 36, for example passing through the longitudinal axis of the strip 8 and through the cutting edge 33, under the action of an electric motor 37, associated with a sensor 38, measuring the amplitude of the rotation of said crew, that is to say the inclination of the cutting edge 33 relative to the direction of travel of the strip 8.
  • the axis 29 of the rigid roller 27 and of the sensor 30 defines a reference line, orthogonal to the strip 8, used for measuring the advance of the strip 8.
  • This reference line 29 is arranged at a known invariable distance D of the axis of rotation 36 of the crew 12, 32, 33, 34, 35, this axis 36 itself being at a constant distance from the edge of the strip 8 bearing between the selvedge guide 3 (see the fig. 5). It will be noted that, the sliding of the strip 8 on the roller 27 being negligible, the measurement of the length of strip 8 by the counter 30 is very precise.
  • the measurement of the advance of the strip 8 can be counted by the counter 30 as being the length of the strip 8 running past the axis of rotation 36, the indicator of the sensor 30 being zero during the first cut. To avoid any accumulation of possible length errors, each wheel pass is considered by command 2 as a new length reference.
  • Command 2 waits for a value from counter 30 and actuates the driving roller 26 until this value is obtained.
  • the rigid roller 27 is driven through the belt.
  • the cutting edge 33 is constituted by a fixed knife 39 cooperating with the wheel 35.
  • a work clamp 40 for example in the form of an angle iron, makes it possible to apply the front edge of the strip 8 against the upper face of the knife 39.
  • the work clamp can be clamped against the strip 8 or separated from it by means not shown.
  • the wheel 35 is rotatably mounted on a horizontal shaft 41 cantilevered relative to the carriage 34 and it can slide along said shaft 41, a spring 42 tending to separate said wheel from said carriage.
  • a hub 43 is integral with the wheel 35 and is capable of rolling on the work clamp 40.
  • the spring 42 allows both to apply the wheel 35 against the cutting edge 33 of the knife 39 and the cylindrical peripheral face of the hub 43 against the work clamp 40, because the reaction of the pressure of the wheel 35 against the knife 39 tends to tilt the carriage 34 around the rail 32 away from the knife 39 (arrow f), that is to say by pressing the hub 43 on the work clamp 40.
  • the work clamp 40 can deform slightly under the pressure of the hub 43, so that it correctly maintains the strip 8 at cut right.
  • Figs. 7 and 8 schematically show the device for removing cut pieces 9 and scraps 44 of strip material 8, said scraps 44 being made up of unusable pieces of tape 8 comprised between two consecutive pieces 9.
  • the conveyors 13 and 14 are spaced from one another and provide between them an empty space 45.
  • a deflector 46 is mounted at the end of tilting arms 47, capable of pivoting around of transverse axes 48, under the action of a motor or an actuator (not shown), so that said deflector 46 can occupy either a first position for which it is above the empty space 46 ( fig. 7), or a second position for which it is in said empty space 45 (fig. 8).
  • the cut pieces 9 can pass under the deflector and be transferred from the conveyor 13 to the conveyor 14.
  • the second position of the deflector 46 the latter obstructs such a transfer and the material falls 44 flexible band 8 are directed through the space 45 to a receiving tank 49.
  • the machine according to the invention is suitable for cutting parts from strips 8 of flexible material, whatever this material.
  • the machine is particularly suitable for fully automated operation, as illustrated in fig. 9.
  • the digital control 4 sends orders and receives in return information from the control bay 5.
  • the latter can control at 51 the advance of the strip 8 by controlling the devices 15 and 16, at 52 the rotation of the cutting device 17, in 53 the operation of the conveyors 13 and 14, in 54 the device 18 for sorting and evacuation of the cut pieces and offcuts and in 55 the cutting of the product by command of an internal cycle of the device 17, internal cycle which includes for example the clamping of the work clamp 40 (reference 56), the displacement of the wheel 35 by the carriage 34 (reference 57), and the loosening of the work clamp 40 (reference 58).
  • the automated machine according to the invention is perfectly integrated into an automated manufacturing process of the type of that illustrated in FIG. 10, on which it can be seen that the machine 1 can receive information from a station 59 for defining parts of the CAD type (computer-aided design) and dialogue with a station 60 for production scheduling and a station 61 for management of material stocks, to supply an automated manufacturing station 62 with the cut parts 9.
  • CAD type computer-aided design

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  • Treatment Of Fiber Materials (AREA)
  • Sawing (AREA)
  • Details Of Cutting Devices (AREA)
EP83401589A 1982-08-17 1983-08-01 Machine pour la découpe de pièces dans une matière en bande Expired EP0101366B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8214211 1982-08-17
FR8214211A FR2531941A1 (fr) 1982-08-17 1982-08-17 Machine pour la decoupe de pieces dans une matiere en bande

Publications (2)

Publication Number Publication Date
EP0101366A1 EP0101366A1 (fr) 1984-02-22
EP0101366B1 true EP0101366B1 (fr) 1985-11-06

Family

ID=9276911

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83401589A Expired EP0101366B1 (fr) 1982-08-17 1983-08-01 Machine pour la découpe de pièces dans une matière en bande

Country Status (4)

Country Link
US (1) US4555967A (enrdf_load_stackoverflow)
EP (1) EP0101366B1 (enrdf_load_stackoverflow)
DE (1) DE3361175D1 (enrdf_load_stackoverflow)
FR (1) FR2531941A1 (enrdf_load_stackoverflow)

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CN103538946B (zh) * 2013-10-31 2016-03-02 胡达广 卫生纸卷切一体机
CA2877252C (en) * 2015-01-09 2019-10-15 Jeff's Circle Inc. Ribbon cutter
CN104972502A (zh) * 2015-06-30 2015-10-14 重庆市金盾橡胶制品有限公司 胎面压紧机构
DE102016121162A1 (de) * 2016-11-07 2018-05-09 Marco Capra Einrichtung zum Herstellen von Behältern
IT201700013864A1 (it) * 2017-02-08 2018-08-08 Guido Giorgetti Dispositivo di erogazione e taglio di materiale nastriforme
CN106946100B (zh) * 2017-05-15 2023-04-11 深圳市沃尔核材股份有限公司 一种卷头卷尾牵引与切断装置
CN108891964A (zh) * 2018-06-27 2018-11-27 芜湖韩大防伪科技有限公司 一种企业合同防伪线剪切装置
CN110405500A (zh) * 2019-07-24 2019-11-05 中国十七冶集团有限公司 一种建筑施工用型材切割装置
CN110935730A (zh) * 2019-12-31 2020-03-31 安徽楚江特钢有限公司 一种冷轧钢带自动切割设备
CN116002442B (zh) * 2023-03-06 2023-09-12 肇庆骏鸿实业有限公司 一种窄带束纵裁装置

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Also Published As

Publication number Publication date
FR2531941A1 (fr) 1984-02-24
DE3361175D1 (en) 1985-12-12
FR2531941B1 (enrdf_load_stackoverflow) 1984-12-14
EP0101366A1 (fr) 1984-02-22
US4555967A (en) 1985-12-03

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