US20060261120A1 - Method and apparatus to continuously separate cut pieces from flexible material - Google Patents

Method and apparatus to continuously separate cut pieces from flexible material Download PDF

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Publication number
US20060261120A1
US20060261120A1 US11/381,164 US38116406A US2006261120A1 US 20060261120 A1 US20060261120 A1 US 20060261120A1 US 38116406 A US38116406 A US 38116406A US 2006261120 A1 US2006261120 A1 US 2006261120A1
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United States
Prior art keywords
roller
vacuum
web
valve
switched
Prior art date
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Abandoned
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US11/381,164
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English (en)
Inventor
William Slyne
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Industrial Evolution Inc
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Industrial Evolution Inc
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Publication date
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Priority to US11/381,164 priority Critical patent/US20060261120A1/en
Assigned to INDUSTRIAL EVOLUTION INC. reassignment INDUSTRIAL EVOLUTION INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SLYNE, WILLIAM J.
Publication of US20060261120A1 publication Critical patent/US20060261120A1/en
Abandoned 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
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/0006—Article or web delivery apparatus incorporating cutting or line-perforating devices
    • 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
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • 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
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/007—Control means comprising cameras, vision or image processing systems
    • 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
    • B26D7/18—Means for removing cut-out material or waste
    • B26D7/1845—Means for removing cut-out material or waste by non mechanical means
    • B26D7/1854—Means for removing cut-out material or waste by non mechanical means by air under pressure
    • 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
    • B26D7/18—Means for removing cut-out material or waste
    • B26D7/1845—Means for removing cut-out material or waste by non mechanical means
    • B26D7/1863—Means for removing cut-out material or waste by non mechanical means by suction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/12—Advancing webs by suction roller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H27/00—Special constructions, e.g. surface features, of feed or guide rollers for webs
    • 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
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/51—Modifying a characteristic of handled material
    • B65H2301/511—Processing surface of handled material upon transport or guiding thereof, e.g. cleaning
    • B65H2301/5115—Cleaning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/30—Suction means
    • B65H2406/33—Rotary suction means, e.g. roller, cylinder or drum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/30—Suction means
    • B65H2406/36—Means for producing, distributing or controlling suction
    • B65H2406/361—Means for producing, distributing or controlling suction distributing vacuum from stationary element to movable element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/30—Suction means
    • B65H2406/36—Means for producing, distributing or controlling suction
    • B65H2406/362—Means for producing, distributing or controlling suction adjusting or controlling distribution of vacuum transversally to the transport direction, e.g. according to the width of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/30—Suction means
    • B65H2406/36—Means for producing, distributing or controlling suction
    • B65H2406/363—Means for producing, distributing or controlling suction adjusting or controlling distribution of vacuum for a plurality of suction means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/30—Suction means
    • B65H2406/36—Means for producing, distributing or controlling suction
    • B65H2406/365—Means for producing, distributing or controlling suction selectively blowing or sucking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/10—Size; Dimensions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/20—Location in space

Definitions

  • This invention relates to the field of selecting and removing pattern pieces that have been severed or cut from a web or sheet of flexible material, while the pattern pieces are still embedded within the web, both being supported on a common surface.
  • This invention also relates to the field of vacuum rollers where one or more said rollers are disposed along the path of an advancing web said rollers being oriented such that each roller's axis of rotation is both orthogonal to the advance direction of the web and orthogonal to the surface normal of the web and said rollers are positioned such that the web travels around at least a portion of the arc of each said roller.
  • This invention also relates to the field of steering and guiding webs, tapes, sheets and conveyer belts both with uniform material properties, and those with non-uniform material properties.
  • This invention also relates to the field of effecting or influencing a process to be performed on a web, tape, sheet or conveyer belts where the level of pressure on the web must be applied in an arbitrary programmed manner over the material surface.
  • the webs or sheets are normally comprised of films, laminates, fibers woven materials or animal hides as are used in technical textiles, apparel, furnishings, engineering membranes, composite materials such as tapes, wovens that may be pre-impregnated with adhesives or liner material and nanostructured compositions such as distributed or aligned carbon nanotubes which may further be embedded in a polymer web or sheet.
  • Semi rigid foils and semi rigid sheet metal webs or pieces may also be manipulated with the apparatus described here.
  • the web or sheet in which the pattern pieces are embedded is supported on a planar, cylindrical, or curved surface.
  • the vacuum roller axis may be in relative translational motion to the material support surface.
  • the vacuum roller has its rotational axis orthogonal to the relative direction of travel of the material surface and orthogonal to the normal vector of the material surface.
  • the vacuum roller is rotating so that the surface of the vacuum roller and the surface of the material are in registration (no relative motion).
  • Prior art vacuum roller designs present a variety of methods to achieve the application of selective vacuum to a portion of the arc of a roller. This arc portion is to remain generally stationary with respect to the machine configuration, such that as the roller rotates, its surface ports are successively ported to either vacuum, pressure or closed.
  • Most of these designs are intended to provide vacuum retention and motion to a web or sheet of flexible material by “pulling” vacuum through the surface of a roller into the hollow core of the roller.
  • the core has a rotating joint at one or both ends that allows the attachment of a non-rotating vacuum hose to a remote vacuum pump or source.
  • the general design schemes provide for the “zoning” of vacuum and or positive pressure to a portion of the arc of the roller.
  • Vacuum is ported to the roller surface to draw the web or sheet into intimate contact with the roller surface.
  • the vacuum is switched to a positive pressure to “push” the sheet or web leading edge away from the current roller onto the next roller or conveyer.
  • the prior art vacuum roller systems lack the ability to selectively control the presence of vacuum at each of the surface ports of the roller independently of one another.
  • the prior art fails to provide a mechanism to permit roller pressure transitions which do not either apply to an entire row of surface ports along the roller or to an entire ring of surface ports around the circumference of the roller.
  • a vacuum roller for conveying a web or sheet type material comprises a rotatable roller having an external surface.
  • the rotatable roller has a plurality of bores there through, each of which bores terminates at a surface port in the external surface of the rotatable roller.
  • a plurality of addressable valves are in fluid communication with the plurality of bores.
  • the plurality of addressable valves is also in fluid communication with both a vacuum source and a pressure source.
  • a means for addressably controlling the state of each of the plurality of valves is provided to selectively permit the fluid communication through a respective one of the bores between the vacuum source or pressure source and a respective one of the surface ports.
  • One method to addressably control each of the plurality of valves is to utilize a programmable controller programmed with software that performs the switch sequencing and a data base or data file that the software accesses, the data represents the desired state of each of the valves at all times and/or positions during operation.
  • a valve assembly for use in a rotatable vacuum roller having an external surface and a plurality of bores there through, each of which bores terminates at a surface port in said external surface of the rotatable roller.
  • the valve assembly comprises a plurality of addressable valves each of which is in fluid communication with a vacuum source and a pressure source and one of said surface ports.
  • a means for addressably controlling the state of each of the plurality of valves is provided to selectively permit the fluid communication through a respective one of the bores between the vacuum source or the pressure source and a respective one of the surface ports.
  • the present invention describes a vacuum roller that allows the selective application of vacuum or pressure to any desired surface port around the roller's circumference and along the roller's length. This is programmable so that any selected surface port may have its state changed at any time during operation. This “porting” is dynamic. The addressable valve in fluid connection with each surface port can be switched instantly while the roller is rotating.
  • FIG. 1A is a perspective view of a schematic of an apparatus in accordance with an embodiment of the present invention.
  • FIG. 1B is a cross-sectional view of the roller shown in FIG. 1A taking along lines 1 B- 1 B.
  • FIG. 1C is an enlarged view of a portion of the roller shown in FIG. 1B .
  • FIGS. 2A and 2B are perspective and top views respectively of an example of pressure distribution along a single row of surface ports.
  • FIGS. 3A and 3B show a conveyorized, two axis cutting system that incorporates an example of the system described herein.
  • FIGS. 4A and 4B show an addressable vacuum roller having an array of surface ports in accordance with one example of the present invention.
  • an apparatus is shown generally by reference numeral 101 .
  • a fully addressable vacuum/pressure roller As used herein, the word “addressable” refers to the identification of a location by an address or a name in order to facilitate information transfer.
  • the use of an addressable control mechanism provides the ability to independently switch any single surface port (also referred to as aperture) to either vacuum, pressure or off (closed) without reference to the state of neighboring surface ports.
  • Addressable control enables a vacuum roller to function with precision and specificity facilitating for example picking up and releasing work pieces having complex shapes from within a web or sheet.
  • addressable controls may be incorporated in other endless surfaces in circuitous motion applications including conveyorized belt systems generally.
  • the use of addressable valves can benefit this entire class of moving systems that move in a loop.
  • a Vacuum roller 101 for conveying a web or sheet type material comprises a rotatable roller 102 having an external surface 103 .
  • the rotatable roller 102 has a plurality of bores 104 there through, each of which bores 104 terminates at a surface aperture or port 105 in the external surface 103 of the rotatable roller 102 .
  • the surface ports 105 may preferably be disposed in a grid pattern of rows along the longitudinal direction of the rotatable roller 102 and rings (or columns) around its circumference. The rows are parallel to the axis of the roller and perpendicular to the direction of rotation of the roller.
  • a plurality of addressable valves 107 are in fluid communication with the corresponding plurality of bores 104 .
  • the plurality of addressable valves 107 is also in fluid communication with a vacuum source 108 .
  • This is achieved by having a vacuum manifold 109 inside a rotating roller.
  • the vacuum manifold may be non-rotating, but is usually an axis-symmetric coaxial tube that rotates with the rotatable roller 102 to provide both a vacuum manifold and act as the primary structural support for the roller.
  • a rotating slip joint is used at the end of the roller to allow fluid communication of the non-rotating vacuum source 108 with the rotating roller's vacuum manifold 109 .
  • a positive pressure source 110 it is preferable in an alternative embodiment to provide, in addition to the vacuum source, a positive pressure source 110 .
  • the pressure source will enable positive air pressure to be used to discharge a piece of web material from the vacuum roller by progressively pushing the piece away as the web and roller advance.
  • the plurality of addressable valves 107 is also in fluid communication with a pressure source 110 . This is achieved by having a pressure manifold 111 inside a rotating roller.
  • the pressure manifold 111 may be non-rotating, but is usually an axis-symmetric coaxial tube that rotates with the rotatable roller 102 to provide both pressure and act as the primary support for the roller.
  • Vacuum and pressure are commuted from remote pumps (not shown) and compressors (not shown) to the rotating vacuum manifold 109 and pressure manifold 111 through rotating slip joints 112 located at the end of the roller shaft.
  • This design provides for both angular and axial zoning of vacuum or pressure to the external surface 103 of the rotatable roller 102 .
  • FIG. 2A shows a representative pressure distribution diagram along a single row 206 of an addressable vacuum roller.
  • the high pressure zones 201 show positive pressure intended to push away web portions that intersect row 206
  • the low pressure zones 202 show vacuum intended to retain web portions that intersect row 206 .
  • Successive rows would generally have different pressure distribution profiles valving vacuum for example to ports that are in contact with portions of the web that are to retained by the roller, positive pressure to portions of the web that are to be removed from the roller, and closing the valve where no material is in contact with the roller (not shown).
  • Vacuum and pressure levels are shown on the diagrams with magnitudes of ⁇ 200 mb for the vacuum and +200 mb for the pressure. However, these are shown as examples only. Appropriate levels would need to be investigated to be compatible with the web or sheet material to be manipulated and to allow the addressable vacuum roller to function as intended.
  • a vacuum roller can be provided which is suitable for the handling of 48′′ wide plasticized vinyl webs for example 0.030′′ thick.
  • the vacuum roller in the present example has an outside diameter of 10.0 inches and an active length of 48.0 inches.
  • the axial port pitch of the surface ports is 2.0 inches which corresponds to 25 equally spaced surface apertures or ports along the roller's axis, the circumferential port pitch of the surface ports is about 1.6 inches, which corresponds to 20 equally spaced surface ports around the roller's circumference.
  • the surface speed at which the web would travel while passing around the rotatable roller is 40.0 inches/second.
  • the rotatable roller would have 500 surface ports.
  • a programmable controller suitable for controlling the embodiment of the invention which selectively provides both vacuum and pressure in the rotatable roller would require 1000 output switches, 500 two state switches to select vacuum and 500 two state switches to select positive pressure. In the case of a vacuum only design, the programmable controller would require 500 two state outputs.
  • An alternative control system could provide for a switching matrix that utilizes a row and column multiplexer and a toggle valve at each surface port. Such a multiplexed system would utilize momentary signal levels to switch valve states, requiring only 45 outputs—25 for the axial addresses and 20 for the circumferential addresses.
  • a means for addressably controlling the state of each of the plurality of valves is provided to selectively permit the fluid communication through a respective one of the bores between the vacuum source and a respective one of the surface apertures or ports.
  • a large number of valves and associated ports is controlled by a valve control system such as a remote dedicated computer or programmable logic controller (PLC), or an embedded control system or combination thereof, with the required input/output hardware and software to perform the switch sequencing.
  • PLC programmable logic controller
  • the valve control system discussed by example herein is an electronic control system. Other valve control systems based on pneumatics or mechanical linkages or hybrid combinations of control systems may also be employed
  • the X direction is along the long axis of the web also the direction of travel
  • the Y direction is orthogonal to both the X axis and the web surface normal vector
  • the Z axis is normal to the surface of the web or sheet. Since these webs or sheets are generally flexible, the coordinate frame indicated here is relative to the surface of the web or sheet at any one point on its surface.
  • the x-position of the roller surface with respect to the x-position of the web is achieved by either starting both at pre-determined positions or, at a time when the roller and web are not moving the operator can enter the current x-position of both the web and the roller into the controller software.
  • an encoding device tracks the roller rotational position and the control system either tracks the web or sheet x-position by means of an encoding devise or the controller software calculates the web x-position based on the roller's rotational motion and estimates of web motion relative to the roller surface, if any.
  • a vision system could be utilized to scan and inspect the moving web upstream of the vacuum roller. This vision system would detect the positions of the cut lines and also detect flaws in the web material or in the cut lines, and construct the appropriate commands to allow the vacuum roller to position and switch the valve states so as to manipulate different portions of the web as intended, the cut pieces removed for further handling and flawed portions of the web discarded.
  • the control software performs a simple raster scan on the web and produces an image of the vacuum roller valve locations superimposed on an image of the pattern pieces.
  • the vacuum roller valve state at each valve location is then determined and stored for retrieval when the vacuum roller is in motion.
  • control system determines the timing of the valve state transitions based on the x-position of the roller from the encoder and the stored valve states.
  • C identifies a closed port, no fluid contact with either the vacuum or pressure manifold.
  • V identifies surface port locations that are in fluid communication with the vacuum manifold.
  • the example described here is for a vacuum roller that is able to provide only vacuum (port valve open) or no pressure (port valve closed) to any one of its surface ports.
  • FIG. 4A shows an addressable vacuum roller 101 with an array of surface ports 105 in fluid communication with an addressable valve (not shown), the addressable valve can switch the port from fluid communication to a vacuum source (not shown) or to a closed state where no air flow is allowed to pass through the port.
  • roller 101 As the roller 101 rotates, its rotational position is reported to the digital control computer 441 by an absolute digital encoder 440 .
  • the control computer compares the roller position to the position in a pre-calculated file of the valve states required to be switched along each row as that row passes a specific point in the roller's rotation, usually a point where the web or a cut piece is either entering or exiting tangent to the roller's surface.
  • the control computer transmits signals 411 to a column select switch bank 413 closing any number of normally open switches 405 . At the appropriate time, the control computer transmits signals 412 to a row select switch bank 414 closing a single normally open switch 406 .
  • the selected switch closures allow current to flow from the electrical power source 426 through the switch 405 out to the roller valve (not shown) in fluid communication with the surface port 105 , the current then flows along the conductor 415 , through the valve's solenoid actuator (not shown), then along conductor 416 to the row select switch 406 then to the electrical power source's ground 427 .
  • the valve utilized here is of a toggle valve design—the current flowing through the valve's solenoid switches the surface port 105 into fluid communication with the vacuum source.
  • the electrical current is released, when either switch 405 or 406 are opened, the valve remains in the state where vacuum is ported through to the surface port 105 .
  • the port is closed when a mechanical link closes all ports along a specific row simultaneously (not shown).
  • the multiplexed design described above allows the selective actuation of any valve such that the roller can apply selective vacuum force to any surface port as required.
  • FIGS. 3A and 3B show a conveyerized two axis cutting system as are commonly utilized to continuously cut web material from rolls where uncut roll goods in web form 313 are supplied onto a flexible air permeable conveyer 321 in fluid communication with a vacuum manifold 315 .
  • the conveyer transports the material into a cutting zone where a 2 axis cutter carriage 317 cuts pattern piece boundaries 328 inside of the web 312 .
  • the web is comprised of pattern pieces 328 embedded within but severed from the surrounding scrap 329 .
  • the web is advanced until it is under a first vacuum roller 300 of a traditional zoned vacuum roller design.
  • This roller applies vacuum to it's surface starting at the position indicated by 331 , the vacuum level is sufficient to pull the entire web off of the conveyer and advance the web to position 332 where roller 300 closes successive axial rows of surface ports as they pass position 332 , so that the entire web can be picked up by the first addressable vacuum roller 301 .
  • Addressable vacuum roller 301 applies vacuum starting at position 332 to pull the entire web into intimate contact and away from roller 300 .
  • Roller 301 then selectively switches only the surface ports that are adjacent to the pattern pieces at position 333 from vacuum to either closed or to positive pressure, the surface ports that are under the scrap portion of the web are maintained in fluid communication with the vacuum source to maintain intimate contact with roller 301 .
  • Addressable vacuum roller 302 applies selective vacuum to surface ports that are adjacent to the pattern pieces as they pass by position 333 . As each row of addressable vacuum roller 302 passes location 334 , all surface ports along that row are closed such that pattern pieces 328 in contact with roller 302 transfer to a conveyer removal system 340 . As each row of vacuum roller 301 passes position 335 all surface ports along that row are closed, releasing the scrap portions of the web 329 onto an appropriate scrap removal system 350 .
  • the apparatus described above comprises an effective system to separate cut pattern pieces from a web and deposit the pattern pieces onto an appropriate take-away system while also sending the scrap to an appropriate location.
  • a more advanced system employing a greater number of addressable vacuum rollers would allow the separation of multiple layers of pattern pieces and scrap.
  • Such a system would have multiple arrangements of addressable vacuum rollers, each such arrangement would be of the same general configuration as described above and presented in FIG. 3A and FIG. 3B .
  • the web is shown moving across the roller, it is also possible for the web to be stationary and have the roller move across the web. Still further, they may both move relative to each other at the same time.
  • the addressable vacuum roller disclosed in the present invention may be utilized to apply selective controlled normal force to portions of a web where such variable pressure across and within a web is intended to even out the tensions of a web with non-uniform elastic properties such as a web with embroidered emblems embedded within or a web or sheet with non-uniform structural reinforcement.
  • an apparatus according to the invention may be suitable for use in any field or industry requiring selecting and removing pattern pieces that have been severed or cut from a web or sheet of flexible material. Accordingly, the present invention should not be viewed as limited to any particular use or use in any particular industry. While the foregoing describes what are considered to be preferred embodiments of the present invention, it is understood that various modifications may be made thereto and that the invention may be implemented in various forms and embodiments, and that it may be applied in numerous applications, only some of which have been described herein. It is intended by the following claims to claim all such modifications and variations which fall within the true scope of the invention.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Advancing Webs (AREA)
US11/381,164 2005-05-03 2006-05-02 Method and apparatus to continuously separate cut pieces from flexible material Abandoned US20060261120A1 (en)

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US67724405P 2005-05-03 2005-05-03
US11/381,164 US20060261120A1 (en) 2005-05-03 2006-05-02 Method and apparatus to continuously separate cut pieces from flexible material

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US (1) US20060261120A1 (fr)
EP (1) EP1883596A4 (fr)
CA (1) CA2605810A1 (fr)
WO (1) WO2006117646A1 (fr)

Cited By (19)

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Publication number Priority date Publication date Assignee Title
US20060281614A1 (en) * 2005-06-09 2006-12-14 Philip Morris Usa Inc. Filter tube making
WO2009068016A1 (fr) * 2007-11-28 2009-06-04 Bremer Werk für Montagesysteme GmbH Dispositif de levage pneumatique d'un objet plan
US7654427B1 (en) * 2008-09-18 2010-02-02 Industrial Technology Research Institute Suction roller and transporting apparatus using the same
US20100072244A1 (en) * 2008-09-24 2010-03-25 Industrial Technology Research Institute Web transportation guiding apparatus and method
US20110250001A1 (en) * 2008-06-27 2011-10-13 Kba-Giori S.A. Inspection System for Inspecting the Quality of Printed Sheets
CN102357671A (zh) * 2011-07-28 2012-02-22 辽宁东工装备制造有限公司 一种用于纵剪机组的真空张力控制辊系统
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WO2014079192A1 (fr) * 2012-11-26 2014-05-30 Leung Sui-Ki Appareil transporteur de type continu en mesure de réguler la forme géométrique plane du textile
US10294057B2 (en) 2014-09-05 2019-05-21 New Way Machine Components, Inc. Gas bearing, porous media vacuum roller and porous media air turn
US10543674B2 (en) 2015-11-23 2020-01-28 Koenig & Bauer Ag Device for treating substrates
US10442103B2 (en) 2015-11-23 2019-10-15 Koenig & Bauer Ag Device and method for processing substrates
US10086526B2 (en) * 2016-10-04 2018-10-02 Geo. M. Martin Company Puffer pan
WO2018106521A1 (fr) * 2016-12-06 2018-06-14 Arm Automation, Inc. Outil et procédé de séparation et de ramassage de morceaux découpés de matériaux flexibles
US10710262B2 (en) 2016-12-06 2020-07-14 Arm Automation, Inc. Tool and method for separating and picking cut pieces of flexible materials
US10899033B2 (en) 2016-12-06 2021-01-26 Arm Automation, Inc. Tool and method for separating and picking cut pieces of flexible materials
US11596164B2 (en) * 2019-05-23 2023-03-07 Veritas Food Company LLC Systems and methods for cutting and cooking a substance
ES2818994A1 (es) * 2019-10-10 2021-04-14 Simplicity Works Europe Sl Mesa de corte por control numerico con extraccion automatica de piezas
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CA2605810A1 (fr) 2006-11-09

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