EP0271116B2 - Improvements to a vacuum-grip cutting table - Google Patents
Improvements to a vacuum-grip cutting table Download PDFInfo
- 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
Links
- 238000005520 cutting process Methods 0.000 title claims abstract description 42
- 230000006872 improvement Effects 0.000 title abstract description 3
- 239000000463 material Substances 0.000 claims abstract description 26
- 239000004033 plastic Substances 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 229920002799 BoPET Polymers 0.000 description 1
- 239000005041 Mylar™ Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 210000001520 comb Anatomy 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000002984 plastic foam Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Images
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)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Treatment Of Fiber Materials (AREA)
- Control And Other Processes For Unpacking Of Materials (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Details Of Cutting Devices (AREA)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
- Vacuum Packaging (AREA)
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 |
---|---|---|---|
ES8603432A ES2006729A6 (es) | 1986-12-15 | 1986-12-15 | Mejoras en una mesa de corte con sujeccion por vario |
ES8603432 | 1986-12-15 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0271116A1 EP0271116A1 (en) | 1988-06-15 |
EP0271116B1 EP0271116B1 (en) | 1992-11-19 |
EP0271116B2 true EP0271116B2 (en) | 1998-03-11 |
Family
ID=8248885
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP87118526A Expired - Lifetime EP0271116B2 (en) | 1986-12-15 | 1987-12-14 | Improvements to a vacuum-grip cutting table |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP0271116B2 (fi) |
JP (1) | JP2588224B2 (fi) |
AT (1) | ATE82601T1 (fi) |
CA (1) | CA1316099C (fi) |
DE (1) | DE3782727T3 (fi) |
DK (1) | DK167320B1 (fi) |
ES (1) | ES2006729A6 (fi) |
FI (1) | FI86564C (fi) |
IE (1) | IE61401B1 (fi) |
Families Citing this family (18)
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. |
ES2561329T3 (es) | 2005-10-04 | 2016-02-25 | Nihon Shoryoku Kikai Co., Ltd. | Dispositivo de corte por ultrasonidos |
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)
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 |
ES487253A0 (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 |
-
1986
- 1986-12-15 ES ES8603432A patent/ES2006729A6/es not_active Expired
-
1987
- 1987-11-02 FI FI874816A patent/FI86564C/fi not_active IP Right Cessation
- 1987-12-04 DK DK640187A patent/DK167320B1/da not_active IP Right Cessation
- 1987-12-14 DE DE3782727T patent/DE3782727T3/de not_active Expired - Fee Related
- 1987-12-14 AT AT87118526T patent/ATE82601T1/de not_active IP Right Cessation
- 1987-12-14 IE IE337987A patent/IE61401B1/en not_active IP Right Cessation
- 1987-12-14 CA CA000554230A patent/CA1316099C/en not_active Expired - Fee Related
- 1987-12-14 EP EP87118526A patent/EP0271116B2/en not_active Expired - Lifetime
- 1987-12-15 JP JP62320065A patent/JP2588224B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE3782727D1 (de) | 1992-12-24 |
CA1316099C (en) | 1993-04-13 |
DK167320B1 (da) | 1993-10-11 |
JPS63191597A (ja) | 1988-08-09 |
FI86564C (fi) | 1992-09-10 |
DK640187A (da) | 1988-06-16 |
IE61401B1 (en) | 1994-11-02 |
FI874816A0 (fi) | 1987-11-02 |
DK640187D0 (da) | 1987-12-04 |
EP0271116A1 (en) | 1988-06-15 |
EP0271116B1 (en) | 1992-11-19 |
DE3782727T3 (de) | 1998-05-20 |
JP2588224B2 (ja) | 1997-03-05 |
FI86564B (fi) | 1992-05-29 |
ATE82601T1 (de) | 1992-12-15 |
IE873379L (en) | 1988-06-15 |
ES2006729A6 (es) | 1989-05-16 |
FI874816A (fi) | 1988-06-16 |
DE3782727T2 (de) | 1993-04-15 |
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