US3835747A - Fabric web hold-down apparatus for tailoring machines - Google Patents

Fabric web hold-down apparatus for tailoring machines Download PDF

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Publication number
US3835747A
US3835747A US38456273A US3835747A US 3835747 A US3835747 A US 3835747A US 38456273 A US38456273 A US 38456273A US 3835747 A US3835747 A US 3835747A
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US
United States
Prior art keywords
chamber
chambers
cutting
fabric
cutting tool
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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English (en)
Inventor
B Bystron
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.)
Rieter Ingolstadt Spinnereimaschinenbau AG
Original Assignee
Schubert und Salzer Maschinenfabrik AG
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 Schubert und Salzer Maschinenfabrik AG filed Critical Schubert und Salzer Maschinenfabrik AG
Application granted granted Critical
Publication of US3835747A publication Critical patent/US3835747A/en
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
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06H—MARKING, INSPECTING, SEAMING OR SEVERING TEXTILE MATERIALS
    • D06H7/00—Apparatus or processes for cutting, or otherwise severing, specially adapted for the cutting, or otherwise severing, of textile materials
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S83/00—Cutting
    • Y10S83/929—Particular nature of work or product
    • Y10S83/936—Cloth or leather
    • Y10S83/939—Cloth or leather with work support
    • Y10S83/94—Cutter moves along bar, bar moves perpendicularly
    • Y10S83/941—Work support comprising penetratable bed
    • 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
    • Y10T83/6579—With means to press work to work-carrier
    • 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
    • Y10T83/748—With work immobilizer

Definitions

  • the carrier may be reciprocated, and the vacuum chamber series may be fixed relative to-the cutting tool in the direction of carrier reciprocation.
  • the cutting tool may be reciprocable relative to a stationary vacuum chamber series, and chamberevacuating means may be operable to change the absolute subatmospheric pressures, though not their relative pressure differentials, in synchronism with such reciprocation.
  • the present invention relates to apparatus for holding fabric webs on an air-pervious carrier by means of suction during tailoring of the fabric by a cutting tool.
  • the foregoing object can be accomplished in accordance with the present invention by providing a series of vacuum chambers on the side of the fabric carrier opposite the fabric webs, which chambers are gradationally evacuated so that the chamber located directly in the cutting area has a pressure farther below atmospheric than the chamber adjacent to it. It is advantageous to provide vacuum chambers which are stationary to avoid the problems of air leakage associated with movable chambers.
  • a modification of the present invention is to provide in conjunction with a cutting area movable lengthwise relative to the fabric carrier, a series of vacuum chambers arranged along the carrier having a gradational pressure system which is variable in synchronism with travel of the cutting area, so that the subatmospheric pressure in particular chambers is variable to create stronger or weaker suction on the fabric lay-up as required.
  • FIG. 1 is a schematic longitudinal section through tailoring mechanism showing one form of a gradational suction system according to the present invention, for use with a reciprocable fabric carrier; and FIG. 2 is a similar view of a modified suction system.
  • FIG. 3 is a schematic longitudinal section through tailoring mechanism showing another form of gradational suction system, for use with a cutting tool reciprocable lengthwise of a series of vacuum chambers.
  • the stack 2 of fabric webs is covered by a foil or paper overlayer l and lies on a perforated backing sheet 20.
  • the composite layup is carried on an airpervious fabric carrier 3 supported by rollers 30 for lengthwise reciprocation in the direction of arrows P1 and P2 relative to a cutting tool 4.
  • Such cutting tool is vertically movable toward and away from carrier 3, and
  • the leading edge of the paper or foil overlayer l which extends beyond the leading edge of fabric stack 2 and backing sheet 20 is first subject to a relatively weak suction force from chamber 5 upon transition from the suction-free area to the suction area.
  • a relatively weak suction force is sufficient to hold the composite lay-up l, 2, 20 firmly on fabric carrier 3 during the forward travel of the lay-up toward the cutting region.
  • the strong suction force necessary to hold the fabric web stack 2 in fixed position on the carrier 3 against the cutting force is not applied to the overlayer 1 or fabric 2 until the lay-up is moved to a position over chamber 6 located beneath the cutting tool 4. As the leading edge of the lay-up moves to a position overlying chamber 7, the suction is reduced.
  • FIG. 2 A series of five chambers 52, 62, 72, 82 and 92 is shown in FIG. 2 located below the perforate carrier 3, which chambers are connected to a vacuum system (not shown) by conduits 53, 63, 73, 83 and 93, respectively.
  • the conduits can be regulated as described in connection with FIG. 1 to achieve selectively the desired relative pressures and the desired degree of evacuation necessary for different types of fabric in the cutting region. All of the chambers will be evacuated to subatmospheric pressures, but chamber 72, which is located in the cutting region, will have the lowest pressure.
  • the adjacent chambers 62 and 82 immediately fore and aft of chamber 72, respectively, will have a pressure higher than chamber 72 but lower than the pressure in outwardly-adjacent chambers 52 and 92.
  • the air pressure therefore increases in the individual chambers with increased distance from cutting tool 4, or, stated conversely, the suction forces on the lay-up decrease with increased distance from the cutting tool. It has been found that the combined effect of the gradational suction system holds the lay-up so securely that the relatively low suction from the outer chambers 52 and 92 is sufficient to hold the portions of fabric stack 2 in their effective regions on the carrier 3 sufficiently securely so that the fabric webs wont slip relative to each other or relative to the carrier.
  • the present invention is advantageously applicable to a tailoring machine having a stationary fabric carrier 32, as shown in FIG. 3.
  • the cutting tool is mounted for horizontal travel in the directions of both the X and Y coordinates of the cutting line, as well as such tool being movable in a vertical direction to be withdrawn from and inserted into the fabric stack 2.
  • the cutting tool 40 is mounted on a conventional carriage 41.
  • four vacuum chambers 54, 64, 74 and 84 are shown as being arranged in series to maintain the fabric webs of the stack 2 in their positions on the carrier 3, the lay-up including a backing sheet and an overlayer 1 of paper or foil.
  • each of the vacuum chambers has two evacuating conduits, of which only the conduits 55 and 56 for chamber 54 are shown.
  • Each conduit is closed by a valve or other closure member 57,58, 67,68, 77,78, 87,88, each of which members includes an actuation lever.
  • Cutting tool carriage 41 carries two arms 42 and 43 extending lengthwise relative to carrier 32.
  • Arm 42 is located to engage selectively the levers of the valves 57, 67, 77 and 87 connected in the lower capacity vacuum system for opening them, and projects substantially further fore and aft of carriage 41 than does arm 43.
  • Arm 42 is located to engage selectively the levers of the valves 57, 67, 77 and 87 connected in the lower capacity vacuum system for opening them, and projects substantially further fore and aft of carriage 41 than does arm 43.
  • chamber 74 is located in the cutting region defined by the area around cutting tool 40.
  • Closure member 77 is opened by arm 42, and closure member 78 is opened by arm 43, so that chamber 74 is evacuated to create a strong suction force sufficient to hold the fabric web securely during cutting.
  • arm 42 opens closure members 67 and 87 of vacuum chamber 64 and 84, which chambers are contiguous with cutting region chamber 74, so that the adjacent chambers are evacuated to a lesser degree than chamber 74 to create a gradationally weaker suction force than is effective in chamber 74.
  • high evacuating capacity closure member 68 is opened by arm 43 so that a strong suction force is produced in the newlylocated cutting region, while closure member 78 is released to reduce the suction force in chamber 74.
  • low capacity closure member 67 is maintained in its open condition as arm 42 projects progressively further beyond it toward the corresponding member 47 in chamber 57 immediately ahead of the cutting region chamber 64.
  • Closure member 87 is correspondingly released by arm 42 so that chamber 84 which is now remote from the cutting area is no longer subjected to evacuation.
  • apparatus for a tailoring machine for cutting fabric webs having a cutting tool, a cutting region surrounding the cutting tool, an air-pervious fabric carrier for supporting a stack of fabric webs in the cutting region through which suction force can be applied to 2.
  • the evacuating means includes regulating means operable to vary the degree of evacuation in each vacuum chamber for effecting selectively stronger and weaker suction forces, and selecting means for operating said regulating means in response to movement of the cutting region for effecting stronger suction forces in the one chamber of the series located in the cutting region, and weaker suction forces in the chambers adjacent to such cutting region chamber.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Details Of Cutting Devices (AREA)
  • Nonmetal Cutting Devices (AREA)
US38456273 1972-08-05 1973-08-01 Fabric web hold-down apparatus for tailoring machines Expired - Lifetime US3835747A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2238746A DE2238746C3 (de) 1972-08-05 1972-08-05 Vorrichtung zum Zuschneiden textiler Stoffbahnen

Publications (1)

Publication Number Publication Date
US3835747A true US3835747A (en) 1974-09-17

Family

ID=5852852

Family Applications (1)

Application Number Title Priority Date Filing Date
US38456273 Expired - Lifetime US3835747A (en) 1972-08-05 1973-08-01 Fabric web hold-down apparatus for tailoring machines

Country Status (7)

Country Link
US (1) US3835747A (ko)
JP (1) JPS4952386A (ko)
DE (1) DE2238746C3 (ko)
FR (1) FR2194823B1 (ko)
GB (1) GB1434742A (ko)
IT (1) IT991364B (ko)
NL (1) NL7310766A (ko)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4060016A (en) * 1976-07-26 1977-11-29 Gerber Garment Technology, Inc. Method and apparatus for blanking out pattern pieces from a layup
DE3003273A1 (de) 1979-01-31 1980-08-07 Gerber Garment Technology Inc Vorrichtung und verfahren zum arbeiten auf aufeinanderfolgenden flachmaterialsegmenten
USRE30757E (en) * 1977-04-22 1981-10-06 Gerber Garment Technology, Inc. Closed loop apparatus for cutting sheet material
US4322993A (en) * 1979-03-06 1982-04-06 Stumpf Guenter O Arrangement in a cutting apparatus for engaging and retaining a web-like material, particularly superposed material webs
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
US5727434A (en) * 1993-08-13 1998-03-17 Ryobi America Corporation Circular saw air table
US6021699A (en) * 1998-07-23 2000-02-08 Caspar; Roman C. Waterjet cutting head
US6681670B2 (en) 2001-03-07 2004-01-27 Paprima Industries Inc. Water jet edge cutter with integral trim chute
US6699353B1 (en) 1999-01-20 2004-03-02 Ahlstrom Lystil Sa Use of an air permeable paper sheet as support element for a stack of fabrics
US20050034576A1 (en) * 2003-08-11 2005-02-17 Ray Theodore M. Bun slicer
US20070204735A1 (en) * 2000-07-19 2007-09-06 Fmc Technologies, Inc. Three axis portioning method
WO2008128732A1 (de) * 2007-04-20 2008-10-30 Assyst Bullmer Spezialmaschinen Gmbh & Co. Kg Anordnung und verfahren zum lagerichtigen zuschneiden von biegeschlaffen materialien
CN100553906C (zh) * 2004-01-30 2009-10-28 株式会社岛精机制作所 裁剪机的吸引调整方法以及装置
CN109571607B (zh) * 2018-11-24 2020-08-18 深圳市格调家私有限公司 多层自动裁机

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2736401C2 (de) * 1977-08-12 1985-02-07 Continental Gummi-Werke Ag, 3000 Hannover Vorrichtung zum Querschneiden von Warenbahnen aus biegsamen Stoffen
FR2444109A1 (fr) * 1978-12-12 1980-07-11 Hoglund Stig Procede et dispositif pour le decoupage de tissus
DE3326816A1 (de) * 1983-07-26 1985-02-14 Krauss U. Reichert Gmbh + Co Kg Spezialmaschinenfabrik, 7012 Fellbach Verfahren und einrichtung zum schneiden eines stapels aus mehreren flachmaterial-lagen
ES8600997A1 (es) * 1983-08-16 1985-10-16 Gerber Garment Technology Inc Un aparato para cortar material laminar flexible
GB2175237B (en) * 1985-05-22 1988-07-27 Gerber Scient Inc Apparatus and method for supporting and working on sheet material
US4587873A (en) * 1985-05-22 1986-05-13 Gerber Scientific, Inc. Apparatus with belt valve vacuum system for working on work material
IT1220898B (it) * 1988-06-13 1990-06-21 Buderus Sell Sistema di compattazione di superfici tessili in tavoli di taglio
KR930012210B1 (ko) * 1990-11-16 1993-12-24 무도오 고오교오 가부시기가이샤 자동제도기에 있어서의 통기성 시이트의 제도 및 커팅방법 및 형지 복사시이트
FR2774869B1 (fr) * 1998-02-13 2000-04-14 Ahlstrom Lystil Sa Structure en feuille utilisable comme element support d'un empilement d'etoffes sur une ligne de confection et procede pour son obtention
US6042095A (en) * 1998-07-15 2000-03-28 Gerber Technology, Inc. Method and apparatus for retaining one or more layers of sheet type work material on a support surface

Citations (1)

* 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

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2062508A5 (ko) * 1969-09-22 1971-06-25 Muto Ind Cy Ltd

Patent Citations (1)

* 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

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4060016A (en) * 1976-07-26 1977-11-29 Gerber Garment Technology, Inc. Method and apparatus for blanking out pattern pieces from a layup
USRE30757E (en) * 1977-04-22 1981-10-06 Gerber Garment Technology, Inc. Closed loop apparatus for cutting sheet material
DE3003273A1 (de) 1979-01-31 1980-08-07 Gerber Garment Technology Inc Vorrichtung und verfahren zum arbeiten auf aufeinanderfolgenden flachmaterialsegmenten
DE3050324A1 (ko) * 1979-01-31 1982-07-22
US4345496A (en) * 1979-01-31 1982-08-24 Gerber Garment Technology, Inc. Apparatus for working on successive segments of sheet material
US4322993A (en) * 1979-03-06 1982-04-06 Stumpf Guenter O Arrangement in a cutting apparatus for engaging and retaining a web-like material, particularly superposed material webs
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
US5727434A (en) * 1993-08-13 1998-03-17 Ryobi America Corporation Circular saw air table
US6021699A (en) * 1998-07-23 2000-02-08 Caspar; Roman C. Waterjet cutting head
US6699353B1 (en) 1999-01-20 2004-03-02 Ahlstrom Lystil Sa Use of an air permeable paper sheet as support element for a stack of fabrics
US20090149986A1 (en) * 2000-07-19 2009-06-11 John Bean Technologies Corporation Method and system for portioning foodstuff to user-specified shape
US20070204735A1 (en) * 2000-07-19 2007-09-06 Fmc Technologies, Inc. Three axis portioning method
US7841264B2 (en) 2000-07-19 2010-11-30 John Bean Technologies Corporation Three axis portioning method
US8025000B2 (en) 2000-07-19 2011-09-27 John Bean Technologies Corporation Three axis portioning method
US8166856B2 (en) 2000-07-19 2012-05-01 John Bean Technologies Corporation Method for portioning foodstuff to user-specified shape
US9770838B2 (en) 2000-07-19 2017-09-26 John Bean Technologies Corporation System for portioning foodstuff to user-specified shape
US6681670B2 (en) 2001-03-07 2004-01-27 Paprima Industries Inc. Water jet edge cutter with integral trim chute
US20050034576A1 (en) * 2003-08-11 2005-02-17 Ray Theodore M. Bun slicer
CN100553906C (zh) * 2004-01-30 2009-10-28 株式会社岛精机制作所 裁剪机的吸引调整方法以及装置
WO2008128732A1 (de) * 2007-04-20 2008-10-30 Assyst Bullmer Spezialmaschinen Gmbh & Co. Kg Anordnung und verfahren zum lagerichtigen zuschneiden von biegeschlaffen materialien
CN109571607B (zh) * 2018-11-24 2020-08-18 深圳市格调家私有限公司 多层自动裁机

Also Published As

Publication number Publication date
FR2194823A1 (ko) 1974-03-01
NL7310766A (ko) 1974-02-07
JPS4952386A (ko) 1974-05-21
IT991364B (it) 1975-07-30
DE2238746B2 (de) 1976-05-26
DE2238746C3 (de) 1978-04-20
GB1434742A (en) 1976-05-05
DE2238746A1 (de) 1974-02-07
FR2194823B1 (ko) 1975-08-22

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