EP0780200B1 - Schneidvorrichtung für flächige, biegeschlaffe Gebilde, wie z.b. für Lederhäute oder Textilbahnen - Google Patents
Schneidvorrichtung für flächige, biegeschlaffe Gebilde, wie z.b. für Lederhäute oder Textilbahnen Download PDFInfo
- Publication number
- EP0780200B1 EP0780200B1 EP96120687A EP96120687A EP0780200B1 EP 0780200 B1 EP0780200 B1 EP 0780200B1 EP 96120687 A EP96120687 A EP 96120687A EP 96120687 A EP96120687 A EP 96120687A EP 0780200 B1 EP0780200 B1 EP 0780200B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cutting device
- cutting
- carriage
- driving wheels
- control
- 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 - Lifetime
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14B—MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
- C14B5/00—Clicking, perforating, or cutting leather
-
- 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
- B26F1/3806—Cutting-out; Stamping-out wherein relative movements of tool head and work during cutting have a component tangential to the work surface
- B26F1/3813—Cutting-out; Stamping-out wherein relative movements of tool head and work during cutting have a component tangential to the work surface wherein the tool head is moved in a plane parallel to the work in a coordinate system fixed with respect to the work
Definitions
- the invention relates to a cutting device according to the preamble of claim 1.
- the cutting device known from DE 41 18 321 C2 has one on the back of one Cutting table with its drive wheels on horizontal Rails with a vertical carriage Support column on which a telescopic Cantilever arm is pivotally mounted. On the front free end of the extension arm is one with a support foot can be placed on the cutting table to create a vertical Axis rotating rotary knife machine arranged, the one switch for the sliding drive of the car wearing.
- the known cutting device is regarding their technical structure and in terms of their handling as right for some applications felt rigid.
- the invention is based on the object to create a cutter at which is the rigid structurally complex construction can be omitted and which is a versatile and also precise application allowed.
- This task will corresponding to the characterizing part of claim 1 solved.
- the invention proposes a remote controlled Carriage that carries the cutting tool and drives directly on the material to be cut.
- the cutting tool can by a water jet device, by a circular or stitch knife, from a laser beam, be formed by an ultrasonic knife, etc.
- the proposal according to the invention further provides that necessary directions of movement of the cutting carriage in X / Y coordinate system motorized through the carriage Taxes. Thereby a necessary tangential Control of the cutting edge by means of an axis of rotation in the carriage be generated.
- the invention further provides for the material to be cut on the cutting surface by vacuum, glue or to fix friction.
- the carriage has two parallel or has adjustable drive wheels with adjustable Circumferential speeds can be driven, wherein at least one support wheel arranged on the carriage is.
- the invention comprises as a special embodiment initially two aligned parallel to each other Driving wheels with adjustable peripheral speeds are drivable. This means that to achieve a straight cut both drive wheels revolve at the same peripheral speed. For the case that the cutting contour requires a curve, one drive wheel can be faster and the other slower circulate. For mechanical stabilization of the Wagens this additionally has at least one support wheel on. With the cutting carriage according to the invention therefore any cutting contour can be achieved. In the event that the two drive wheels in one unchangeable parallel alignment are, it is according to an embodiment expedient of the invention that at least one support wheel train freely rotatable and freely steerable.
- the embodiment is by the solution according to the invention of claim 10, characterized according to which the car at least three aligned parallel to each other has directionally controllable drive wheels with adjustable peripheral speeds can be driven.
- Embodiment has drive wheels on, each with the same peripheral speed are drivable.
- every point of the carriage when moving off the cutting contour always follows the same path as the institution of the cutting tool and its adjustment considerably facilitated.
- the invention also allows the drive wheels with circulate at different peripheral speeds allow. This makes the invention possible given to correct the running of a car if this through particularly noticeable discontinuities (e.g. due to different stiction values), which occur especially in leather hides due to slippage deviate from the cutting contour described above should.
- Driving wheels regarding their directional control coupled in a uniform motion, so that one time set parallel position of the drive wheels to each other is guaranteed at every steering position.
- the drive wheels are useful for carrying out the steering movement on control shafts.
- each Control shaft carries a pinion and that all pinions of the control shafts via an endlessly guided one Gear element, such as drive chain or toothed belt, positively coupled with each other are.
- a common control motor is incorporated in the Gear means incorporated.
- a common control motor can a further embodiment of the invention an incremental stepper motor which can be driven via step pulses or be a servo motor.
- Another embodiment according to the invention provides that the movement uniform Clutch for directional control of the drive wheels via a drive energy medium, e.g. electrical, done.
- a drive energy medium e.g. electrical
- other drive energy media such as e.g. a pressure fluid to apply.
- the invention is also generally limited not on electric stepper motors or electric Servo motors. Of course, instead of such electric motors also hydraulic or Air motors are used.
- each tax wave has its own can be driven incrementally via a step pulse Stepper motor or with a servo motor, and that all of these engines share a common one Signalers are controlled.
- Cutting tools which are essentially the material to be cut act linearly, e.g. driven or non-driven circular knives must be attached to the constantly changing course of the cutting contour adapted, i.e. appropriately managed and oriented become.
- the one described at the outset Propose a necessary tangential Control of the cutting edge by means of an axis of rotation in the carriage to create.
- the directional control of the Cutting tool with the direction control of the drive wheels in that in the directional control the drive wheels also control the direction of the Cutting tool is incorporated.
- each drive wheel has its own, incremental stepper motor controllable via step impulses or can be driven via a servo motor.
- the stepper or servo motors of the drive wheels either via a common signal generator or controlled by separate signal transmitters his. Separate signal generators are then appropriate be if e.g. for the application described above a direction correction of the cutting carriage different peripheral speeds at the Drive wheels are required.
- the invention provides that the drive for the directional control of the drive wheels and the drive of the drive wheels are reversible.
- the flat cutting surface denoted by E is a dermis 11 spread out and over vacuum not shown Openings temporarily determined.
- Fig. 1 shows a so-called “nesting", after which the contours of three blanks within the outer contour A of the dermis 11 are made visible. These blanks placed or nested are e.g. via the optics 12 of a laser 13 (see FIG. 6) shown on the dermis 11.
- the special problem when nesting leather is that leather is a natural product and therefore each fur is individual according to the shape and size and accordingly the natural faults in the fur nested must become. So it may be that surface defects the dermis 11 shown in FIG. 1 only the initially three blanks placed by nesting, so do not allow further cuts.
- FIG. 1 designated in FIG. 1, initially only by cutting represented by nesting, the contour of which is designated by K as a whole following are now shown as the crop 14 is generated.
- Cutting tool e.g. water jet device, edge or stitch knife, laser beam, ultrasonic knife etc.
- straight partial contour lines K1, K2, K3 and K4 from points p1 via points p2, p3 and p4 again led back to point p1, with which the cut 14 would have been completed.
- the outer contour A of the dermis 11 is not shown in FIG. 2.
- the leadership of a schematically shown in Fig. 2 Cutting tool can according to FIG. 3 via a remote control proceed as follows:
- the remote control of the cutting tool, not shown in Fig. 3 along the contour K, starting from point pl, over the points p2, p3, p4 back to point p1 takes place in the broadest sense based on polar coordinates.
- Based on the different points p1-p4 are the different rope lengths with S1-S4 and the corresponding angles are designated by ⁇ 1- ⁇ 4.
- the cutting carriage points to its drive control 15 the following details:
- An approximately plate-like chassis 16 is four Control shafts 17 penetrated at right angles.
- Each Control shaft 17 has at its lower free end an approximately fork-shaped bearing bracket 18, which by means of a bearing shaft 19 each with a Tire 21 provided drive wheel 20 is stored.
- Each drive wheel 20 is electrical Servomotor 22 or via an electric stepper motor drivable.
- Each control shaft 17 is not shown in FIG Way in the bearings 23 of the chassis 16 axially immovable pivoted.
- each Control shaft 17 At the upper free end areas 24 of each Control shaft 17 is a toothed disc 25 rotatably, which with a continuously running toothed belt 26 is engaged.
- the timing belt 26 is also engaged with a toothed disc 27 at the upper free end area 28 a cutting tool control shaft 29, which at the bearing point 30 in the chassis 16 axially immovable is pivoted.
- the cutting tool control shaft carries the free end area 29 an approximately fork-shaped bearing bracket 31, which receives a bearing shaft 32 for a cutting wheel 36, which is driven in rotation by means of an electric motor 33 is.
- control motor 34 At the top of the free end portion 28 of the cutting tool control shaft 29 is a control motor 34, namely an electric servo motor or an electric one Stepper motor, flanged.
- the cutting carriage 15 works as follows:
- the cutting wheel 36 at point p2 the cutting carriage 15 is thus open its journey from point p2 to point p3.
- the cutting wheel 36 rotates and thus cuts the dermis 11 along the partial contour K2, while those driving the cutting carriage 15 forward, that is to say synchronously driven wheels via the servomotors 22 20 circulate.
- the cutting carriage 15 deviates from the cutting contour K2, what about the device N (s.Fig. 3) is determined with the required Measure a steering correction via the servo motor 34, which all control shafts 17 for the drive wheels 20 and also the cutting tool control shaft 29 incrementally over the toothed belt 26 in which drives one or the other direction of rotation.
- the drive wheels 20 and the cutting wheel 36 are independent from the respective angular position of the control shafts 17 and 29 always aligned parallel to each other.
- the signal to the servo motor 34 for course correction is based on a not shown Computer, via a combined feed and Control cable 37 (see FIG. 6) to the servo motor 34 transfer.
- the servomotors 22 as well as the drive motor 33 become electrical via the cable 27 fed.
- Parallel to cutting can be used as a guide for a subsequent sewing process at intervals signature stamp 38 to be actuated may be provided, which to operate by means of an air cylinder 39 is.
- FIG 3 differs from the arrangement according to FIG 6 and 7 another type of remote control shown for the cutting carriage 15.
- the optics 12 of the laser 13 sends a laser beam L out, which on a photosensitive Cell, on a CCD camera array 41 with 0-512 Pixel x / y hits. If the laser beam L changes, as shown in Fig. 7, its position, so this change in position is detected by the camera array 41 and in the form of control data about a Computer and over the combined cable 37 to the Servo motor 34 of the cutting carriage 15 passed that the latter exactly follows the laser beam by the Crosshair Z covered with laser beam L. becomes.
- the cutting tool control shaft 29 consists of two separate axial areas 29A and 29B, which by means of a lifting device 42 rotatably with one another are connected. To do this, the opposite Ends of the axial portions 29A, 29B flanges 43 and 44. Actuators, such as, sit on the upper flange 43 e.g. Air cylinder 45, the axially movable elements, such as. Piston rods 46, on the upper side at the lower Flange 44 are attached. By actuation this actuator can therefore the cutting tool control shaft 29 can be shortened axially if that Cutting tool 36 for performing an empty run of the cutting carriage 15 is to be raised.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Control Of Cutting Processes (AREA)
- Treatment Of Fiber Materials (AREA)
Description
Claims (25)
- Schneidvorrichtung für Lederhäute (11), Textilbahnen, oder dergleichen flächige, biegeschlaffe Gebilde, mit einer ein Schneidwerkzeug (36) tragenden und dieses entlang einer Schnittkontur (K) führenden Halterung (15), die einen mit Antriebsrädern (20) versehenen, antreibaren fernsteuerbaren Wagen (15) aufweist, der entlang einer vom flächigen Gebilde dargestellten Schneidebene (E) bewegbar ist, dadurch gekennzeichnet, daß der Wagen (15) die Halterung für das Schneidwerkzeug (36) bildet und mit seinen Antriebsrädern (20) direkt auf dem flächigen Gebilde (11) bewegbar ist.
- Schneidvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Bewegungsrichtung des Wagens (15) in einem x/y-Koordinatensystem motorisch steuerbar ist.
- Schneidvorrichtung nach Anspruch 1 oder nach Anspruch 2, gekennzeichnet durch, eine tangentiale Steuerung einer Schneide (bei 36) mittels einer im Wagen (15) angeordneten Drehachse (bei 29).
- Schneidvorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Wagen (15) eine CCD-Kamera mit einem Sichtfenster (41) enthält, in dessen Zentrum zur Bewegungssteuerung des Wagens (15) der Auftreffpunkt eines Laser-Leitstrahls (L) eines oberhalb der Schneidebene (E) angebrachten Lasers (13) einjustierbar ist, wobei die Interpolation der Schnittkontur (K) maßgerecht durch den Laser-Leitstrahl (L) erfolgt.
- Schneidvorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Interpolation der Schnittkontur (K) durch flexible Positionssensoren und durch Zerlegung der Bewegung des Wagens (15) in einzelne Vektoren erfolgt.
- Schneidvorrichtung nach Anspruch 5, gekennzeichnet durch am Rand der Schneidebene (E) angebrachte und über Lichtleiter miteinander verbundene Positionsgeber.
- Schneidvorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß das flächige Gebilde (11) bezüglich der Schneidebene (E) mittels Vakuum, Klebstoff oder Reibung fixierbar ist.
- Schneidvorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß der das Schneidwerzeug (36) haltende Wagen (15) zwei parallel zueinander ausgerichtete oder ausrichtbare Antriebsräder (20) aufweist, die mit regelbaren Umfangsgeschwindigkeiten antreibbar sind und daß am Wagen (15) zusätzlich mindestens ein Stützrad angeordnet ist.
- Schneidvorrichtung nach Anspruch 8, dadurch gekennzeichnet, daß das Stützrad frei dreh- und frei lenkbar ist.
- Schneidvorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß der das Schneidwerkzeug (36) haltende Wagen (15) mindestens drei parallel zueinander ausgerichtete richtungssteuerbare Antriebsräder (20) aufweist, die mit regelbaren Umfangsgeschwindigkeiten antreibbar sind.
- Schneidvorrichtung nach Anspruch 10, dadurch gekennzeichnet, daß sämtliche Antriebsräder (20) mit jeweils derselben Umfangsgeschwindigkeit antreibbar sind.
- Schneidvorrichtung nach Anspruch 10 oder nach Anspruch 11, dadurch gekennzeichnet, daß die Antriebsräder (20) bezüglich ihrer Richtungssteuerung bewegungseinheitlich miteinander gekuppelt sind.
- Schneidvorrichtung nach Anspruch 12, dadurch gekennzeichnet, daß die Antriebsräder (20) an Steuerwellen (17) gelagert sind.
- Schneidvorrichtung nach Anspruch 12 oder nach Anspruch 13, dadurch gekennzeichnet, daß die bewegungseinheitliche Kupplung bezüglich der Richtungssteuerung der Antriebsräder (20) über Getriebemittel (25, 26) erfolgt.
- Schneidvorrichtung nach den Ansprüchen 13 und 14, dadurch gekennzeichnet, daß jede Steuerwelle (17) ein Zahnritzel (25) trägt und daß alle Zahnritzel (25) der Steuerwellen (17) über ein umlaufend endlos geführtes Getriebeelement, wie Antriebskette oder Zahnriemen (26), miteinander formschlüssig bewegungsgekuppelt sind.
- Schneidvorrichtung nach Anspruch 14 oder nach Anspruch 15, dadurch gekennzeichnet, daß in die Getriebemittel (25, 26) ein gemeinsamer Steuermotor (34) eingegliedert ist.
- Schneidvorrichtung nach Anspruch 16, dadurch gekennzeichnet, daß der gemeinsame Steuermotor ein inkremental über Schrittimpulse antreibbarer Schrittmotor oder ein Servomotor (34) ist.
- Schneidvorrichtung nach Anspruch 12 oder nach Anspruch 13, dadurch gekennzeichnet, daß die bewegungseinheitliche Kupplung bezüglich der Richtungssteuerung der Antriebsräder (20) über ein Antriebsenergiemedium, z.B. elektrisch, erfolgt.
- Schneidvorrichtung nach Anspruch 18, dadurch gekennzeichnet, daß jede Steuerwelle (17) mit einem eigenen inkremental über Schrittimpulse antreibbaren Schrittmotor oder mit einem Servomotor versehen ist, und daß alle diese Motoren über einen gemeinsamen Signalgeber gesteuert sind.
- Schneidvorrichtung nach einem der Ansprüche 8 bis 19, dadurch gekennzeichnet, daß in die Richtungssteuerung der Antriebsräder (20) auch die Richtungssteuerung des Schneidwerkzeugs (36) eingegliedert ist.
- Schneidvorrichtung nach einem der Ansprüche 8 bis 20, dadurch gekennzeichnet, daß jedes Antriebsrad (20) über einen eigenen, inkremental über Schrittimpulse steuerbaren Schrittmotor oder über einen Servomotor (22) antreibbar ist.
- Schneidvorrichtung nach Anspruch 21, dadurch gekennzeichnet, daß die Schritt- oder Servomotoren der Antriebsräder (20) über einen gemeinsamen Signalgeber gesteuert sind.
- Schneidvorrichtung nach Anspruch 21, dadurch gekennzeichnet, daß die Schritt- oder Servomotoren (22) der Antriebsräder (20) jeweils über gesonderte Signalgeber gesteuert sind.
- Schneidvorrichtung nach einem der Ansprüche 8 bis 23, dadurch gekennzeichnet, daß der Antrieb (34) für die Richtungssteuerung der Antriebsräder (20) und der Antrieb (22) der Antriebsräder (20) reversierbar sind.
- Schneidvorrichtung nach einem der Ansprüche 8 bis 24, dadurch gekennzeichnet, daß das Schneidwerkzeug (36) zur Durchführung einer Leerfahrt anhebbar ist.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19548304A DE19548304C2 (de) | 1995-12-22 | 1995-12-22 | Schneidvorrichtung für flächige, biegeschlaffe Gebilde, wie z. B. für Lederhäute oder Textilbahnen |
| DE19548304 | 1995-12-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0780200A1 EP0780200A1 (de) | 1997-06-25 |
| EP0780200B1 true EP0780200B1 (de) | 2001-02-28 |
Family
ID=7781131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96120687A Expired - Lifetime EP0780200B1 (de) | 1995-12-22 | 1996-12-20 | Schneidvorrichtung für flächige, biegeschlaffe Gebilde, wie z.b. für Lederhäute oder Textilbahnen |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0780200B1 (de) |
| DE (2) | DE19548304C2 (de) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101745745B (zh) * | 2009-12-18 | 2013-10-16 | 深圳超多维光电子有限公司 | 光栅切割装置及其切割方法 |
| CN103132233B (zh) * | 2013-02-21 | 2014-08-06 | 湖北工业大学 | 一种用于开幅机的自动视觉对线开幅方法 |
| CN105946015A (zh) * | 2016-06-25 | 2016-09-21 | 苏州杰力澳自动化设备有限公司 | 一种全自动曲线分板机 |
| CN110355041A (zh) * | 2019-06-22 | 2019-10-22 | 江苏鹏翔新材料科技股份有限公司 | 一种织布封边卷绕机构 |
| CN110696093B (zh) * | 2019-10-21 | 2025-08-05 | 广东飞新达智能设备股份有限公司 | Ccd自动定位模切机 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4010346A (en) * | 1975-04-14 | 1977-03-01 | Cecil Equipment Co., Inc. | Self-propelled tractor for welding and cutting apparatus and the like |
| EP0111577B1 (de) * | 1982-12-16 | 1986-07-23 | Koei Seiki Kabushiki Kaisha | Selbstfahrende Schweisskantenbrennschneidmaschine |
| JPS59189075A (ja) * | 1983-04-11 | 1984-10-26 | Koike Sanso Kogyo Co Ltd | 自動走行台車 |
| US4573548A (en) * | 1983-07-23 | 1986-03-04 | Cybermation, Inc. | Mobile base for robots and the like |
| ZA876340B (en) * | 1986-08-27 | 1988-03-02 | Fortron Automot Treatments | Cutting means |
| DE4118321A1 (de) * | 1991-06-04 | 1992-12-10 | Bullmer Spezialmaschinen Gmbh | Zuschneidevorrichtung fuer flachmaterial wie stoffe, folien oder dergleichen |
| FR2701229B1 (fr) * | 1993-02-08 | 1995-04-28 | Lectra Systemes Sa | Procédé de découpe automatique d'une matière souple en feuille. |
| DE9401188U1 (de) * | 1994-01-25 | 1994-04-14 | Bauer, Roland, 90403 Nürnberg | CAD-gestütze Zuschneide-Einrichtung mit digitaler Maßdatenerfassung |
| HUT74049A (en) * | 1994-04-23 | 1996-10-28 | Stahl | Method for treating of technical textile material and leather and apparatous thereof |
-
1995
- 1995-12-22 DE DE19548304A patent/DE19548304C2/de not_active Expired - Fee Related
-
1996
- 1996-12-20 DE DE59606500T patent/DE59606500D1/de not_active Expired - Lifetime
- 1996-12-20 EP EP96120687A patent/EP0780200B1/de not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE59606500D1 (de) | 2001-04-05 |
| EP0780200A1 (de) | 1997-06-25 |
| DE19548304A1 (de) | 1997-06-26 |
| DE19548304C2 (de) | 1997-09-25 |
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