US3554354A - Device for turning fabric panels - Google Patents

Device for turning fabric panels Download PDF

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Publication number
US3554354A
US3554354A US746660A US3554354DA US3554354A US 3554354 A US3554354 A US 3554354A US 746660 A US746660 A US 746660A US 3554354D A US3554354D A US 3554354DA US 3554354 A US3554354 A US 3554354A
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US
United States
Prior art keywords
gripper
fabric
workpieces
conveyor
conveyor means
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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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US746660A
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English (en)
Inventor
Orland B Reid
Joseph W A Off
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.)
Singer Co
Original Assignee
Singer Co
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Filing date
Publication date
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Publication of US3554354A publication Critical patent/US3554354A/en
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    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41H—APPLIANCES OR METHODS FOR MAKING CLOTHES, e.g. FOR DRESS-MAKING OR FOR TAILORING, NOT OTHERWISE PROVIDED FOR
    • A41H43/00—Other methods, machines or appliances
    • A41H43/02—Handling garment parts or blanks, e.g. feeding, piling, separating or reversing
    • A41H43/025—Folding, unfolding or turning over
    • A41H43/0264—Turning over

Definitions

  • Robert E Smith ABSTRACT A device for turning fabric panels to present a predetermined surface thereof upwardly is disclosed with a conveyor for transferring successive fabric panels to an operating station. Associated therewith is mechanism automatically responsive to the presence of a fabric panel with the wrong side up for operating the device for turning the fabric panels.
  • FIG. 1 represents a top planview of a fabric panel conveyor
  • FIG. 7 is a schematic electrical and pneumatic diagram illustrating a control-arrangement for the fabric-turning device of this invention.
  • a work fabric conveyor means including a plurality of spaced conveyor belts 11 each directed about driver pulleys-l2 on a drive shaft '13 and each sustained on idler pulleys 14 on an idler shaft I5.
  • the drive shaft may be rotated from a power shaft 16 as by a belt 17 to move the upper run of the conveyor belts II in the direction of the arrow in FIG. I.
  • the conveyor means disclosed is representative of any conveyor means which may be associated, for instance, with machinery for operating upon fabric workpieces'as by sewing, folding, cutting or the like.
  • the dashed line20 in FIG. I is a loading area on the conveyor means at; which fabricworkpieces 21 may be deposited in seriatim.
  • the fabric workpieces may be delivered to the loading area 20 from another device from a stack of such fabric workpieces.
  • This invention comprehends thedelivery of fabric workpieces in a random faceup or facedown orientation in the loading area 20.
  • a delivery area on the conveyor within which area any desired operation may be performed or initiated on the workpieces, as
  • a sewing operation for instance, a sewing operation, an operation combining the workpiece 21 with another workpiece, or a delivery of the workpiece to a stack by any known stacking mechanism.
  • the fabric-turning device of this invention comprises a unitary assembly supported adjacent to the conveyor means between the loading and delivery areas Q0 and 22.
  • a unitary assembly supported adjacent to the conveyor means between the loading and delivery areas Q0 and 22.
  • the fabric-turning device is carried on a base 30 fromwhich rise bearing brackets 3lxfor a rock shaft 32 which extends transversely across the conveyor means above the upper run of the conveyor belts 1 1.
  • a rock frame 33 including spaced arms 34 which span at least one of the conveyor belts I1 and are located each arm above a space between adjacent ones of the conveyor belts.
  • the specific form of the rock frame 33 including, for instance, the number of spaced rock arms 34 and the number of conveyor belts ll which'the spaced rock'arms span will depend upon the size and shape of the fabric workpiece to be turned.
  • the rock frame illustrated in FIG. 1 has been found to operate successpieces .having the shape of the workpiece 21 in FIG.- 1.
  • Raised bosses 35 on the rock frame 33 sustain a pin 36'supporting an air cylinder37 having a supply line 38.
  • The'piston rod 39 of the air cylinder 37 is of the type adapted tobe conveyor of FIG. [with the fabric panel conveyor of invention illustrated thereon in an at rest position.
  • FIG. 3 represents an elevational view, of a portion of the fabric-turning device of FIG. 2 illustrating the lowered position of the fabric clamp in readiness to turn a fabric panel.
  • a fabric clamping: plate is secured to one other arm of the bellcrank, spansithe roclearms 34 and thus cooperates with the rock arms to grip work -fabric thereon.
  • a workpiece detector unit indicated generally at 60 is carried on a bracket 61 secured as by screwtilomthe base 30.
  • the detector'unit is located in advance of the rock frame 33 considered in the direction of movement of the conveyor belts ll.
  • Thedetectorunit comprises a light source-63 arranged to direct a beam of light onto one of the conveyor belts 11 over which the fabric workpieces 21 will pass.
  • A-photocellofis directs light is formed of or surfaced with material having light-reflecting characteristics similar to that of one face which may be designated as the right face of the fabric workpieces 21 to be operated upon and different light-reflecting characteristics from that of the opposite wrong face of the workpiece material.
  • FIG. 7 illustrates schematically an electronic and pneumatic diagram indicating a preferred control arrangement by which the fabric-turning device of this instruction may be operated.
  • the operation of this device is indicated in successive stages in FIGS. 2 to 6 which in conjunction with FIG. 7 will explain the operation.
  • the photocell 64 of the detector unit 60 is connected electrically to provide an input DC signal level 69 to a differentiator 70 whenever presence of a wrong-sideup workpiece is sensed by the detector unit 60.
  • the differentiator provides as an output a pulse 71.
  • a squarewave generator 72 delivers to an operating coil 73 of a solenoid 74, a square-wave signal 75 of predetermined duration a energizing the solenoid 74 which may be arranged to open an air valve 76 connecting a source 77 of air under pressure with the cylinder 53.
  • the solenoid 74 will cause the spaced rock arms 34 to be depressed immediately as illustrated in FIG. 3, to remain depressed for a predetermined length of time as illustrated in FIG. 4, and then to be raised as illustrated in FIG. 5.
  • the duration aof the square-wave signal 75 will be preselected depending upon the speed of travel of the belts 11 and the distance between the detector unit 60 and the rock arms 34 so that the rock arms 34 will raise only after the leading edge of the fabric workpiece has traveled onto the depressed rock an'ns 34.
  • the pulse 71 provided as an output of the differentiator 70 is also received by a regulatable time-delaying device 78 which delivers as an output a pulse 79 after a preselected time delay.
  • the delay device 78 may take a variety of forms such, for example, as an acoustical delay line.
  • a square-wave generator 80 delivers to an operating coil 81 a square-wave signal 83 of predetermined duration benergizing the solenoid 82 which may be arranged to open an air valve 84 connecting the source 77 of air under pressure with the cylinder 37. Referring to FIGS. 4, 5. and 6, such operation of the solenoid 82 will cause the clamping plate 44 to be depressed for a predetermined time as shown in FIGS.
  • the duration -b of the square-wave signal 83 will be preselected depending upon the length of the fabric workpiece and the speed of travel of the belts 11 so that the clamping plate 44 will grip the leading edge of the workpiece 21 until the trailing edge is completely inverted and drawn beneath the rock arms 34 as shown in FIG. 6.
  • the belts 11 will carry and deliver the inverted workpiece from the raised rock arms 34 to the operating area 22.
  • Apparatus for operating upon successive fabric workpieces on a continuous conveyor means automatically to orient said fabric workpieces with a predetermined side up perrnost comprising a support frame positionable adjacent to said continuous conveyor means, a gripper for the leading edge of fabric workpieces carried on said support frame and having an at rest open position elevated above the path of travel of workpieces on said conveyor or means, a detector device carried on said support frame in advance of said gripping means and including a light source, a photocell responsive to light from said light source reflected from workpieces on said conveyor means, and means biasing the response of said photocell to distinguish one side from another of the fabric workpieces on said conveyor means, and gripper operating means influenced by said control means for in seriatim depressing said gripper into the path of the leading edge of a fabric workpiece on said conveyor means, closing said gripper into engagement with said leading edge, elevating said closed gripper above the path of travel of workpieces on said conveyor means, and opening said gripper after said conveyor means has transported the trailing edge
  • said gripper comprises an arm oscillatable about an axis disposed transversely above said conveyor means and pivoted jaw means carried upon said arm adjacent to the free extremity thereof
  • said gripper operating means comprise a first actuator responsive to said control means for oscillating said arm to position the free extremity thereof selectively above or below the path of workpieces on said conveyor means, and a second actuator responsive to said control means for opening and closing said pivoted jaw means.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Sewing Machines And Sewing (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
US746660A 1968-07-22 1968-07-22 Device for turning fabric panels Expired - Lifetime US3554354A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US74666068A 1968-07-22 1968-07-22

Publications (1)

Publication Number Publication Date
US3554354A true US3554354A (en) 1971-01-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
US746660A Expired - Lifetime US3554354A (en) 1968-07-22 1968-07-22 Device for turning fabric panels

Country Status (4)

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US (1) US3554354A (de)
DE (2) DE6928282U (de)
FR (1) FR2013444A1 (de)
GB (1) GB1229540A (de)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3794153A (en) * 1970-06-09 1974-02-26 Farah Mfg Co Inc Fabric turnover device
US3993838A (en) * 1975-03-03 1976-11-23 The United States Of America As Represented By The Secretary Of The Interior Wax or plastic coated phosphor grains
US4799613A (en) * 1987-11-09 1989-01-24 Russell Corporation Method and apparatus for sensing the preferred side of garment portions
AU606246B2 (en) * 1987-11-09 1991-01-31 Russell Corporation Method and apparatus for processing garment portions
US5363784A (en) * 1991-10-28 1994-11-15 Union Special Corporation Sewing cloth handling device
US5511501A (en) * 1994-04-05 1996-04-30 Monarch Knitting Machinery Corporation Method and apparatus for handling flexible objects
US5544603A (en) * 1994-04-05 1996-08-13 Monarch Knitting Machinery Corporation Apparatus for handling flexible objects
US5803002A (en) * 1994-12-29 1998-09-08 Union Special Corporation Method and apparatus for latchtacking
WO1998042605A1 (en) * 1997-03-21 1998-10-01 Levi Strauss & Co. Automatic feeder and inverter for fabric workpieces
US5845759A (en) * 1996-04-19 1998-12-08 Pegasus Sewing Machine Mfg. Co., Ltd. Cloth piece transfer apparatus with side inverter
US5865135A (en) * 1997-08-15 1999-02-02 Atlanta Attachment Company Method and apparatus for producing a hemmed folded and seamed finished workpiece
US5915319A (en) * 1997-08-15 1999-06-29 Atlanta Attachment Company Method and apparatus for producing a hemmed, folded, and seamed finished workpiece
US5918560A (en) * 1997-11-17 1999-07-06 Atlanta Attachment Company Textile fold control system with hem engager
US20090301371A1 (en) * 2006-05-19 2009-12-10 Nerino Grassi Method and device to discriminate two ends of an article from each other
CN101357008B (zh) * 2007-08-01 2010-09-22 上海欧西玛服装设备有限公司 翻转机
CN111003459A (zh) * 2019-12-09 2020-04-14 芜湖秒算电子科技有限公司 一种用于生产线的弯道防跑偏装置
CN114514346A (zh) * 2019-11-18 2022-05-17 世嘉玩具有限公司 布料的展开装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8602953A (nl) * 1986-11-20 1988-06-16 Nl Kleding & Tricotage Rnkt Inrichting voor het onderste boven leggen van een lap of vel van flexibel materiaal.
DE4304472A1 (de) * 1993-02-15 1994-08-18 Johannes Gros Bearbeitungsmaschine für flexible Materialbahnen

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3047288A (en) * 1958-09-11 1962-07-31 Johns Manville Automatic article reversing mechanism

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3047288A (en) * 1958-09-11 1962-07-31 Johns Manville Automatic article reversing mechanism

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3794153A (en) * 1970-06-09 1974-02-26 Farah Mfg Co Inc Fabric turnover device
US3797423A (en) * 1970-06-09 1974-03-19 Farah Mfg Co Inc Fabric turnover, mating and sewing device
US3993838A (en) * 1975-03-03 1976-11-23 The United States Of America As Represented By The Secretary Of The Interior Wax or plastic coated phosphor grains
US4799613A (en) * 1987-11-09 1989-01-24 Russell Corporation Method and apparatus for sensing the preferred side of garment portions
AU606246B2 (en) * 1987-11-09 1991-01-31 Russell Corporation Method and apparatus for processing garment portions
US5363784A (en) * 1991-10-28 1994-11-15 Union Special Corporation Sewing cloth handling device
US5511501A (en) * 1994-04-05 1996-04-30 Monarch Knitting Machinery Corporation Method and apparatus for handling flexible objects
US5544603A (en) * 1994-04-05 1996-08-13 Monarch Knitting Machinery Corporation Apparatus for handling flexible objects
US5803002A (en) * 1994-12-29 1998-09-08 Union Special Corporation Method and apparatus for latchtacking
US5845759A (en) * 1996-04-19 1998-12-08 Pegasus Sewing Machine Mfg. Co., Ltd. Cloth piece transfer apparatus with side inverter
WO1998042605A1 (en) * 1997-03-21 1998-10-01 Levi Strauss & Co. Automatic feeder and inverter for fabric workpieces
US5865135A (en) * 1997-08-15 1999-02-02 Atlanta Attachment Company Method and apparatus for producing a hemmed folded and seamed finished workpiece
US5915319A (en) * 1997-08-15 1999-06-29 Atlanta Attachment Company Method and apparatus for producing a hemmed, folded, and seamed finished workpiece
US5918560A (en) * 1997-11-17 1999-07-06 Atlanta Attachment Company Textile fold control system with hem engager
US20090301371A1 (en) * 2006-05-19 2009-12-10 Nerino Grassi Method and device to discriminate two ends of an article from each other
CN101357008B (zh) * 2007-08-01 2010-09-22 上海欧西玛服装设备有限公司 翻转机
CN114514346A (zh) * 2019-11-18 2022-05-17 世嘉玩具有限公司 布料的展开装置
CN114514346B (zh) * 2019-11-18 2023-08-18 世嘉玩具有限公司 布料的展开装置
CN111003459A (zh) * 2019-12-09 2020-04-14 芜湖秒算电子科技有限公司 一种用于生产线的弯道防跑偏装置
CN111003459B (zh) * 2019-12-09 2021-04-20 芜湖秒算电子科技有限公司 一种用于生产线的弯道防跑偏装置

Also Published As

Publication number Publication date
DE1936351B2 (de) 1977-10-27
FR2013444A1 (de) 1970-04-03
DE6928282U (de) 1970-04-09
DE1936351A1 (de) 1970-01-22
GB1229540A (de) 1971-04-21
DE1936351C3 (de) 1978-06-29

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