EP0271116B2 - Schneidtisch mit Vakuum-Ansaugung - Google Patents

Schneidtisch mit Vakuum-Ansaugung Download PDF

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Publication number
EP0271116B2
EP0271116B2 EP87118526A EP87118526A EP0271116B2 EP 0271116 B2 EP0271116 B2 EP 0271116B2 EP 87118526 A EP87118526 A EP 87118526A EP 87118526 A EP87118526 A EP 87118526A EP 0271116 B2 EP0271116 B2 EP 0271116B2
Authority
EP
European Patent Office
Prior art keywords
tiles
vacuum
conveyor
cutting
mats
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
Application number
EP87118526A
Other languages
English (en)
French (fr)
Other versions
EP0271116A1 (de
EP0271116B1 (de
Inventor
Mario Andrada Galan
Bernardo Alcantara Perez
Narciso Murillo Gonzalez
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.)
Inetum Espana SA
Original Assignee
Investronica SA
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8248885&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0271116(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Investronica SA filed Critical Investronica SA
Priority to AT87118526T priority Critical patent/ATE82601T1/de
Publication of EP0271116A1 publication Critical patent/EP0271116A1/de
Application granted granted Critical
Publication of EP0271116B1 publication Critical patent/EP0271116B1/de
Publication of EP0271116B2 publication Critical patent/EP0271116B2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/01—Means for holding or positioning work
    • B26D7/018—Holding the work by suction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
    • B25B11/005—Vacuum work holders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/20—Cutting beds

Definitions

  • the invention relates to a conveyor table for a numerically controlled cutting machine for cutting vacuum gripped strip material, comprising a conveyor consisting of a succession of tiles, linked to chains which are driven by a conveyor drive motor, and of a plurality of bristle mats forming a penetrable air-permeable cutting table, and a vacuum system with a vacuum source, whereby the tiles are parts of the vacuum system.
  • the problem underlying the present invention is to improve conveyorized vacuum table of a numerical controlled cutting machine by simplifying the parts and reducing their quantity to form a new conveyorized vacuum table in order to minimize lost of vacuum and wear during the cutting operations.
  • the general object of the invention is a conveyor table for a numerically controlled cutting machine for cutting vacuum gripped strip material, comprising a conveyor consisting of a succession of tiles, linked to chains which are driven by a conveyor drive motor, and of a plurality of bristle mats forming a penetrable air-permeable cutting table, and a vacuum system with a stationary vacuum source, whereby the tiles are parts of the vacuum system and having holes on the upper surface for communication with the bristle mats and openings at the underside aligned and communicating with holes at the topside of a central tube being moored to the frame of the machine and arranged transverse to the tiles and linked to the vacuum source, the tiles, on which the bristle mats are fixed, are hermetically sealed at the ends by end sections, and in which the tube has on its upper face a plastic support strip of low friction and with wide openings corresponding with the openings of the tube and rubber strips in contact with the plastic support strip and which rub on the bottom surface of the tile, and that the tiles are provided
  • the load due to the pressure difference between the top- and bottom-side of the conveyor is supported at the same point where it is created as said wide antifriction plastic strip is situated between the rubber seals thus avoiding unnecessary stresses and deformations of elements and tiles forming the conveyor.
  • a further object of the invention is improvement of the configuration of the tiles with respect to the connection between tiles and bristle mats in such a way that the tiles are formed to receive the bristle mats such that after extracting the end section the bristle mats can be removed from said tiles.
  • Figure 1 shows the cutting machine which incorporates this invention -1-, of the type generally used in this process, and which is briefly described hereinbelow.
  • the geometry of the cut is obtained by movement of the bridge - 20 - or X carriage, and the Y carriage -22-.
  • a controller -24- handles these movements, driving the motors of the X and Y carriages.
  • the carriage -22- has a suitable cutting tool for the material to be worked which, as can be seen from figure 2, is directed on guides -26-.
  • This figure also shows the drive motor -28- and the belt which transmits the movement -30-.
  • Three motors are to be found in this carriage; the blade drive motor, that for aligning the blade in the tangential direction on the cutting line, and the sharpening motor.
  • the X axis carriage is directed on the guides -32- and its motor -34-, moored on the frame, moves the bridge by means of belt -36-.
  • the conveyor is divided into three sections, as can be seen in figure 3; a feed zone -38-, a cutting zone -40- and a collection zone -42-.
  • the material is spread in advance on a table -5- in which holes for the admission of pressurised air facilitate the slippage of the material in the direction of the cutting machine.
  • the conveyor driven by a motor -44- can move along the minimum abscissus, corresponding to the next panel to be cut, and which was not wholly within the cutting window -40-.
  • Figure 4 shows the conveyor table; for clarity, the loading and unloading tables are not shown, nor are the X carriage drives and guides.
  • the chain of tiles -48- is shown, fixed to the chain -50- which is guided on a suitable section, preferably of plastic material for elimination of friction and noise.
  • the wheels -54- driven by motor -44- move the chains in accordance with the orders and data from the controller, which follows the working sequence previously described.
  • An optical encoder -56- secured to the shaft gives ongoing information on the exact position of the chain so that, by comparison against the signal from the codifier which is incorporated into the X carriage drive motor -34-. the relative positions of the bridge and conveyor will be available.
  • Figure 5 shows detail of the construction of the tiles -48-, along with the vacuum communication system which maintains the material to be worked in place under atmospheric pressure, which is the basic purpose of this patent.
  • the said tiles are made up of a hollow tube -58- which is hermetically sealed at the ends by sections -60-; on the underside there is a large opening -62- and, on the upper surface, a variety of holes which connect with blocks of bristles or mats which are permeable to air -64-.
  • Figure 6 shows the detail of a preferred connection between the said tube and mats; with this system, by extracting the end section -60-, the mats can be removed.
  • the drill holes -59- and the base - 61-, permeable to air, are shown.
  • the succession of the said blocks forms the working surface which, in this case, is a surface which can be penetrated by a cutting blade.
  • the tube -66- is secured in the conveyor; with the appropriate connections, it links with the vacuum generated by pump -68-.
  • a strip of plastic material -70- is fixed, with low friction and wear rates.
  • Tube - 66- and strip -70- have wide openings -72- delivering the vacuum through holes -62- to the tiles -48- which slip over the said strip.
  • Another preferred design replaces the drill-holes -72- for a continuous opening of the length corresponding to the area of application of the vacuum, so that the air movement in the holes -62- in this area is never impeded.
  • the upper face formed by the mats -64- is the support for the material to be cut; if it is not sufficiently impermeable, throw-away plastic can be used to close this surface, and the material, or the plastic and material is held in place under atmospheric pressure.
  • tile ends shown in figure 7 would be to replace the sections -60- with blocks of flexible material -120- which is also impermeable, e.g. some type of plastic foam, which would be at the same height as the mats -64-, but slightly wider; the compression of this excess over the tile is what would prevent side leaks; in the previous version, this was the function of the gasket -74- on the side of section -60-.
  • blocks of flexible material -120- which is also impermeable, e.g. some type of plastic foam, which would be at the same height as the mats -64-, but slightly wider; the compression of this excess over the tile is what would prevent side leaks; in the previous version, this was the function of the gasket -74- on the side of section -60-.
  • Figure 8 shows a general layout of pressures, described qualitatively by way of continuation.
  • the pump -68- generates a P0 vacuum, part of which is lost in the ducting to the input to tube -66-. If a pressure of P1 is obtained at the said input, there is a further loss of load in the transition to the tiles, in other words, at the mat, pressure P2 will be greater than P1. As the securing of the material -12- is based on the difference between pressures Pa - P2, P2 needs to be as low as possible, thus requiring the smallest possible loss between the pump output and the mat or, in other words, P2 should be similar to P0, which is the lowest pressure in the entire circuit.
  • the said difference of pressure should be at a maximum in the cutting zone -40-, and, at zone -38-, it should be enough to carry the fabric from the spreading table.
  • the vacuum application must be introduced as far as possible into zone -38-; however, if in this zone the pressure is P3, the loss of load Pa-P3 needed at opening B will be obtained with high flows, so that the pump's level of impulsion will not be sufficient.
  • the section zone tends to be concentrated and to be kept away from the open end sections, so as to obtain a good Pa-P3 difference. This gentle drop, because of the length of mat reached, ensures that the material will be sufficiently secured over an area which will allow it to be moved.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forests & Forestry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Details Of Cutting Devices (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Vacuum Packaging (AREA)

Claims (2)

  1. Förderbandgestützter Schneidtisch (14) zum Schneiden von durch Vakuum gehaltenem Flachmaterial (12) für eine NC-gesteuerte Schneidmaschine (1) mit einem Förderband, bestehend aus aufeinanderfolgend (48) angeordneten Formkörpern (58), die an Ketten (50) angelenkt über einen Motor (44) angetrieben sind, mit einer Vielzahl von eine luftdurchlässige Schneidunterlage bildenden Bürstenauflagen (64), die jeweils an den Formkörpern (58) befestigt sind, und mit einem eine stationäre Vakuumquelle (68) aufweisenden Vakuumsystem, wobei die Formkörper (58) Teile des Vakuumsystems sind und auf ihrer Oberseite mit den Bürstenauflagen kommunizierende Löcher (59) sowie öffnungen (62) an ihrer Unterseite aufweisen, die mit Löchern (72) auf der Oberseite eines zentralen am Maschinenrahmen befestigten Leitungskörpers (66) fluchtend in Verbindung stehen, der quer zu den Formkörpern verlaufend mit einer Vakuumquelle (68) verbunden ist, wobei die die Bürstenauflage tragenden Formkörper (58) an ihren Stirnseiten durch Endstücke (60) hermetisch dicht verschlossen sind, dadurch gekennzeichnet, daß der Leitungskörper (66) auf seiner Oberseite eine reibungsarme Kunststoffabdeckung (70) aufweist mit großen in ihrer Geometrie den öffnungen (72) im Leitungskörper (66) entsprechenden öffnungen (72) in der Kunststoffabdeckung, und mit mit der Unterseite der Formkörper verbundenen Gummistreifen (76) gleitend zusammenwirkt, und daß die Formkörper (58) Abdichtungen (74) zum Schutz gegen Leckagen zwischen den Formkörpern (58) aufweisen, derart, daß ein hermetischer vakuumdichter Verschluß der innenliegenden Flächenbereiche des die Arbeitsfläche bildenden Förderbandes erreicht ist.
  2. Schneidtisch nach Anspruch 1, dadurch gekennzeichnet, daß die Formkörper (58) zur Aufnahme der Büstenauflagen (64) derart ausgebildet sind, daß die Bürstenauflagen nach Entfernen der Endstücke (60) von den Formkörpern (58) entfernbar sind.
EP87118526A 1986-12-15 1987-12-14 Schneidtisch mit Vakuum-Ansaugung Expired - Lifetime EP0271116B2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87118526T ATE82601T1 (de) 1986-12-15 1987-12-14 Schneidtisch mit vakuum-ansaugung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES8603432 1986-12-15
ES8603432A ES2006729A6 (es) 1986-12-15 1986-12-15 Mejoras en una mesa de corte con sujeccion por vario

Publications (3)

Publication Number Publication Date
EP0271116A1 EP0271116A1 (de) 1988-06-15
EP0271116B1 EP0271116B1 (de) 1992-11-19
EP0271116B2 true EP0271116B2 (de) 1998-03-11

Family

ID=8248885

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87118526A Expired - Lifetime EP0271116B2 (de) 1986-12-15 1987-12-14 Schneidtisch mit Vakuum-Ansaugung

Country Status (9)

Country Link
EP (1) EP0271116B2 (de)
JP (1) JP2588224B2 (de)
AT (1) ATE82601T1 (de)
CA (1) CA1316099C (de)
DE (1) DE3782727T3 (de)
DK (1) DK167320B1 (de)
ES (1) ES2006729A6 (de)
FI (1) FI86564C (de)
IE (1) IE61401B1 (de)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4646911A (en) * 1985-09-05 1987-03-03 Gerber Garment Technology, Inc. Conveyorized vacuum table for feeding sheet material
US5303626A (en) * 1990-11-09 1994-04-19 Canon Kabushiki Kaisha Cutting apparatus
US5189936A (en) * 1991-04-05 1993-03-02 Gerber Garment Technology, Inc. Conveyor for supporting and advancing sheet material and cutting machine including such conveyor
DE4128367A1 (de) * 1991-06-03 1993-03-04 Bullmer Spezialmaschinen Gmbh Verfahren zum zuschneiden von teilen (zuschnitten) aus einer materialbahn, insbesondere gewebebahn
JP2547681B2 (ja) * 1991-09-06 1996-10-23 株式会社島精機製作所 自動裁断機における裁断支持面用ブラシ取付構造
JP2979181B2 (ja) * 1991-09-18 1999-11-15 株式会社島精機製作所 裁断装置
JP2757746B2 (ja) * 1993-07-09 1998-05-25 マックス株式会社 布地等の被加工物のためのカッティング方法及び装置
US5825652A (en) * 1995-09-08 1998-10-20 Gerber Garment Technology, Inc. Sample garment making system
ES2161599B1 (es) * 1999-03-18 2002-07-01 Investronica Sist S S A Sistema de control para el nivel de vacio en una mesa de corte para material laminar.
KR101153198B1 (ko) * 2005-10-04 2012-06-18 니혼쇼료쿠키카이 가부시키가이샤 초음파 트림방법
CN102528147A (zh) * 2011-12-24 2012-07-04 常州市宏发纵横新材料科技股份有限公司 裁切机
JP6346742B2 (ja) * 2013-12-05 2018-06-20 イビデン株式会社 シート状部材の裁断方法
DE102015109740A1 (de) * 2015-06-18 2016-12-22 Trumpf Werkzeugmaschinen Gmbh + Co. Kg Maschine zur trennenden Bearbeitung von plattenförmigen Materialen
CN105127962A (zh) * 2015-10-12 2015-12-09 重庆大成优美数控科技有限公司 数控切割平台
CN108556032B (zh) * 2018-01-20 2019-10-01 中航迈特粉冶科技(徐州)有限公司 一种净水器用软水管切割装置
CN108685318A (zh) * 2018-05-08 2018-10-23 安徽六顺达刷业有限公司 一种制作刷丝的塑料条切割装置
CN112626829A (zh) * 2020-12-07 2021-04-09 韩文杰 一种纺织切割装置
CN113550133B (zh) * 2021-07-22 2022-08-30 上海雁峰纺织品有限公司 一种纺织面料加工成型服饰用自动裁剪设备辅助机构

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3495492A (en) * 1969-05-05 1970-02-17 Gerber Garment Technology Inc Apparatus for working on sheet material
ES8101972A1 (es) * 1979-01-31 1980-12-16 Gerber Garment Technology Inc Perfeccionamientos en un aparato para trabajar sobre mate- rial laminar
DE2908701A1 (de) * 1979-03-06 1980-09-11 Guenter O Stumpf Vorrichtung zum aufnehmen und festhalten von bahnfoermigem material, insbesondere von mehreren uebereinanderliegenden stoffbahnen, fuer eine zuschneidemaschine
US4485712A (en) * 1981-12-28 1984-12-04 Gerber Garment Technology, Inc. Method and apparatus for holding sheet material in a sectioned vacuum bed
US4528878A (en) * 1981-12-28 1985-07-16 Gerber Garment Technology, Inc. Method and apparatus for holding sheet material on a sectioned vacuum bed
US4494433A (en) * 1982-01-25 1985-01-22 Gerber Garment Technology, Inc. Apparatus for working on sheet material and having movable vacuum chamber
DE3578791D1 (de) * 1984-03-19 1990-08-30 Ontario Die Co Vorrichtung zum schneiden unter unterdruck eines auf der rueckseite mit schaumstoff versehenen materials.
GB2175237B (en) * 1985-05-22 1988-07-27 Gerber Scient Inc Apparatus and method for supporting and working on sheet material
JPH0537896A (ja) * 1991-06-18 1993-02-12 Canon Inc 記録装置

Also Published As

Publication number Publication date
DE3782727T3 (de) 1998-05-20
DE3782727T2 (de) 1993-04-15
FI86564B (fi) 1992-05-29
FI874816A0 (fi) 1987-11-02
DK640187D0 (da) 1987-12-04
EP0271116A1 (de) 1988-06-15
DK640187A (da) 1988-06-16
ATE82601T1 (de) 1992-12-15
FI874816A (fi) 1988-06-16
DE3782727D1 (de) 1992-12-24
IE61401B1 (en) 1994-11-02
IE873379L (en) 1988-06-15
JPS63191597A (ja) 1988-08-09
FI86564C (fi) 1992-09-10
DK167320B1 (da) 1993-10-11
JP2588224B2 (ja) 1997-03-05
CA1316099C (en) 1993-04-13
EP0271116B1 (de) 1992-11-19
ES2006729A6 (es) 1989-05-16

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