EP0203802A2 - Dispositif de manipulation de matériau textile - Google Patents

Dispositif de manipulation de matériau textile Download PDF

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Publication number
EP0203802A2
EP0203802A2 EP86303992A EP86303992A EP0203802A2 EP 0203802 A2 EP0203802 A2 EP 0203802A2 EP 86303992 A EP86303992 A EP 86303992A EP 86303992 A EP86303992 A EP 86303992A EP 0203802 A2 EP0203802 A2 EP 0203802A2
Authority
EP
European Patent Office
Prior art keywords
pickup device
fabric
layers
conveying means
uppermost
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.)
Withdrawn
Application number
EP86303992A
Other languages
German (de)
English (en)
Other versions
EP0203802A3 (fr
Inventor
Itzchak Porat
Percy Grosberg
Magid Nasser Moghaddassi
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.)
University of Leeds Industrial Services Ltd
Original Assignee
University of Leeds Industrial Services Ltd
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 University of Leeds Industrial Services Ltd filed Critical University of Leeds Industrial Services Ltd
Publication of EP0203802A2 publication Critical patent/EP0203802A2/fr
Publication of EP0203802A3 publication Critical patent/EP0203802A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/32—Separating articles from piles by elements, e.g. fingers, plates, rollers, inserted or traversed between articles to be separated and remainder of the pile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/22—Separating articles from piles by needles or the like engaging the articles

Definitions

  • This invention relates to fabric handling apparatus, and to a method of handling layers of fabric.
  • the present invention concerns itself with the further handling of fabric layers once separation from the stack has been initiated.
  • fabric handling apparatus comprises a table on which layers of fabric may be stacked, a pickup device mounted above the table for picking up an uppermost one of the fabric layers in the region of an edge thereof, means for effecting relative vertical movement between the table and the pickup device between a pickup position and a separation position wherein there is space between the pickup device and the fabric layers on the table, conveying means, and means for driving the conveying means into said space, and then along a path extending over and above the table.
  • a method of handling fabric layers comprises arranging a stack of layers on a table, causing relative vertical movement between the table and a pickup device mounted above the table to cause the pickup device to engage the uppermost fabric layer in the region of an edge thereof, causing the pickup device to pick up and hold the uppermost fabric layer, vertically separating the pickup device and the table with the remaining fabric layers thereon, driving conveying means into the space between the pickup device and along a path extending over and above the table to complete separation of the uppermost fabric layer from the remaining layers, and releasing the uppermost fabric layer from the pickup device.
  • the essence of the invention lies in the concept of initiating separation of the uppermost layer by use of a pickup device, to create space between the edge of the layer so picked and the layer immediately below, and driving conveying means into that space and over the remaining fabric layers on the table so that the conveying means positively completes the separation of the picked layer and automatically deposits that layer in an appropriate position on the conveying means. Handling is thus considerably facilitated.
  • the conveying means may take any one of a number of convenient forms.
  • the conveying means may be a flexible support surface extending between two endless conveyor belts running around a closed loop.
  • the spacing between the belts is greater than the width of the table so that the table may be lifted between the belts in order to cause engagement between the pickup device and the uppermost fabric layer on the table, such action being taken while the flexible support surface lies in a position on the conveyor loop where it will not interfere with movement of the table.
  • the table may conveniently be stepped so that it has a higher section in the region of the pickup device and a lower section downstream of the higher section in the direction of movement of the flexible support surface. By utilising such arrangement two or more spaced flexible support surfaces may be mounted on the conveyor belts. It is preferred that the relative vertical movement between the table and the pickup device is effected by vertical movement of the table, although clearly it is possible to move the pickup device.
  • the apparatus may also include adjustable restraint means projecting above the level of the table for positioning around the edges of a stack of fabric layers on the table.
  • the conveying means may be in the form of the aforesaid flexible support surfaces, and other forms of conveying means are possible.
  • the conveying means may be one or more individual support plates movable between the pickup station and another work station under the control of any suitable handling equipment.
  • Apparatus according to the invention may be fully automated and will then include appropriate sensors and control systems for ensuring that operations are carried out in the required sequence.
  • FIG. 1 show a fabric handling system comprising a table 1 on which layers of fabric may be stacked, a conveyor system shown generally as 2 and a pickup device shown generally as 3.
  • the table has a high level section 4 and a lower level section 5, and it is supported by vertical pillars 6 slidable in guides 7.
  • a screw system, a ram or other suitable means 7a is associated with the table for causing bodily vertical movement thereof as required.
  • the conveyor system comprises two endless belts or chains 8, 9 passing in a closed loop around rollers or sprocket wheels 10.
  • Sprocket wheels 10a are driven by a motor 10b to move the conveyor in the direction shown by the arrows.and sprocket wheels 10c are chain tensioning wheels.
  • Two flexible support surfaces 11, 12 are mounted between the chains and spaced apart around the length of the chains, each surface being, for example, in the form of a series of slats pivoted at their ends to the respective chains.
  • the support surface 11 is omitted from Figure 3 in order to show detail of the table 1.
  • the width of the table 1 is less than the distance between the two chains 8, 9 as is shown in Figures 2 and 3. Accordingly, the table may be raised from the lowermost position shown in solid lines in Figure 4, through the position shown in Figure 1, to a position shown in chain lines in Figure 4 wherein the high level part 4 of the table passes between the chains 8 and 9 to lie above the level of those chains. As the table is raised the uppermost one of a number of layers of fabric supported by the table will be brought into engagement with a pickup head 13 of the pickup device 3.
  • the pickup device further includes a sensor 14, preferably a pressure-sensitive sensor such as a suitable microswitch for providing a control signal to prevent upward overtravel of the table 1.
  • the pickup device may be of any suitable form, but is preferably as described in EP-A-0165019.
  • a further work station for exam- ' ple in the form of a sewing machine indicated - schematically at 15.
  • Position sensors 16, 17 and 18 are associated with the apparatus, for providing signals to a control system controlling the sequence of operation of the various parts.
  • FIGS 3 and 4 show the construction of the table 1 in more detail.
  • a base 19 is located below the table to be substantially co-extensive therewith, the base being secured to a framework 20 of the apparatus by support plates 21.
  • the base carries the guides 7 in which the vertical pillars 6 secured to the table 1 may slide, and the lifting means 7a is also secured to the base.
  • the table has a plurality of parallel slots such as 22 extending across the width of the table as shown in Figure 3, and a plurality of similar slots are also formed in the base 19, each slot in the table being in vertical alignment with a corresponding slot in the base.
  • a plurality of fingers such as 23 extend vertically through aligned slots in the base and in the table, and each finger is releasably engageable with the base by an appropriate lock nut arrangement such as 24.
  • the lock nut arrangement is such that when a finger is required to be moved it need merely be grasped above the level of the table 1 and rotated slightly in order to free the lock nut, whereupon the finger can be moved in its associated grooves to a fresh position, and there tightened to secure it in that position.
  • a plurality of fingers may be located and adjusted in appropriate grooves to lie at selected positions around the boundary of a stack 25 of fabric pieces such as indicated in dotted lines in Figure 3.
  • the fingers will thus act as restraint means that will project above the level of the table during the whole range of movement of the table, and will prevent the stack of fabric pieces from falling over during table movement. It will be noted from Figure 4 that the fingers 23a at the upstream end of the table are shorter than the remaining fingers 23, in order to prevent interference with the pickup means.
  • Operation of the system is as follows, assuming the start position shown in Figure 1 but with the table 1 in its lowered position with a stack of fabric layers thereon, the fingers 23 positioned around the stack and with the two support surfaces 11 and 12 of the conveyor system empty.
  • the conveyor is driven clockwise from the position shown until the leading edge of the support surface 12 arrives below the detector 16, when a control signal is given to control stopping of the conveyor system.
  • the table 1 is raised until the uppermost fabric layer is moved into contact with the pickup device 13, upward movement of the table being stopped on receipt of an appropriate signal from the sensor 14.
  • the table is then lowered, and it will be seen that an edge of the uppermost fabric layer will be held by the pickup device 13 as the table descends.
  • the apparatus may be provided with two or even more pickup stations, so that the conveying means may have a first fabric layer deposited thereon at a first station, and then be moved to a second or subsequent station where a further layer of fabric may be laid over the uppermost fabric layer carried by the conveying means.
  • a series of different garment parts may be overlaid one on another in their required relative positions and the assembly conveyed by the conveying means to a further work station, for example a sewing machine for stitching the parts together.
  • a further work station for example a sewing machine for stitching the parts together.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Sewing Machines And Sewing (AREA)
EP86303992A 1985-05-28 1986-05-27 Dispositif de manipulation de matériau textile Withdrawn EP0203802A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB858513383A GB8513383D0 (en) 1985-05-28 1985-05-28 Fabric handling system
GB8513383 1985-05-28

Publications (2)

Publication Number Publication Date
EP0203802A2 true EP0203802A2 (fr) 1986-12-03
EP0203802A3 EP0203802A3 (fr) 1987-09-30

Family

ID=10579753

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86303992A Withdrawn EP0203802A3 (fr) 1985-05-28 1986-05-27 Dispositif de manipulation de matériau textile

Country Status (2)

Country Link
EP (1) EP0203802A3 (fr)
GB (1) GB8513383D0 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0358605A1 (fr) * 1988-09-09 1990-03-14 GRETAG Aktiengesellschaft Alimentateur d'enveloppes
US5082267A (en) * 1989-12-04 1992-01-21 Ark, Inc. Automatic feeder for workpieces of limp material
US5499564A (en) * 1994-04-15 1996-03-19 Ark, Inc. Method and apparatus for forming a spread
CN112830300A (zh) * 2021-01-04 2021-05-25 杭州职业技术学院 一种便于下料的服装加工用输送装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3934754A (en) * 1974-01-28 1976-01-27 Dutro Lyle V Device for issuing single units of flat flexible articles
FR2447882A1 (fr) * 1979-02-02 1980-08-29 Limon Claude Alimentateur defileur pour circuits imprimes ou plaques
CH621993A5 (en) * 1975-10-23 1981-03-13 Cluett Peabody & Co Inc Process for grasping and removing limp fabric layers from a stack and apparatus for carrying out the process
EP0161010A1 (fr) * 1984-03-26 1985-11-13 Patrick Rouleau Procédé et dispositif de préhension de couches souples en particulier textiles et machine pour la préhension et le transfert desdites couches

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3934754A (en) * 1974-01-28 1976-01-27 Dutro Lyle V Device for issuing single units of flat flexible articles
CH621993A5 (en) * 1975-10-23 1981-03-13 Cluett Peabody & Co Inc Process for grasping and removing limp fabric layers from a stack and apparatus for carrying out the process
FR2447882A1 (fr) * 1979-02-02 1980-08-29 Limon Claude Alimentateur defileur pour circuits imprimes ou plaques
EP0161010A1 (fr) * 1984-03-26 1985-11-13 Patrick Rouleau Procédé et dispositif de préhension de couches souples en particulier textiles et machine pour la préhension et le transfert desdites couches

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0358605A1 (fr) * 1988-09-09 1990-03-14 GRETAG Aktiengesellschaft Alimentateur d'enveloppes
US5082267A (en) * 1989-12-04 1992-01-21 Ark, Inc. Automatic feeder for workpieces of limp material
US5174558A (en) * 1989-12-04 1992-12-29 Ark, Inc. Automatic feeder for workpieces of limp material
US5499564A (en) * 1994-04-15 1996-03-19 Ark, Inc. Method and apparatus for forming a spread
CN112830300A (zh) * 2021-01-04 2021-05-25 杭州职业技术学院 一种便于下料的服装加工用输送装置

Also Published As

Publication number Publication date
EP0203802A3 (fr) 1987-09-30
GB8513383D0 (en) 1985-07-03

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Inventor name: MOGHADDASSI, MAGID NASSER