EP3925739A1 - Maschine zum ausbreiten von stoff - Google Patents

Maschine zum ausbreiten von stoff Download PDF

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Publication number
EP3925739A1
EP3925739A1 EP21178313.9A EP21178313A EP3925739A1 EP 3925739 A1 EP3925739 A1 EP 3925739A1 EP 21178313 A EP21178313 A EP 21178313A EP 3925739 A1 EP3925739 A1 EP 3925739A1
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EP
European Patent Office
Prior art keywords
equal
spreading
fabric
machine
pile
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.)
Pending
Application number
EP21178313.9A
Other languages
English (en)
French (fr)
Inventor
Fabrizio Giachetti
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.)
Morgan Tecnica SpA
Original Assignee
Morgan Tecnica SpA
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 Morgan Tecnica SpA filed Critical Morgan Tecnica SpA
Publication of EP3925739A1 publication Critical patent/EP3925739A1/de
Pending 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
    • 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
    • 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
    • A41H43/005—Cloth spreading or piling apparatus in view of its 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
    • 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
    • B26D5/20—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C3/00—Stretching, tentering or spreading textile fabrics; Producing elasticity in textile fabrics
    • 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
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/0006—Cutting members therefor
    • B26D2001/0066—Cutting members therefor having shearing means, e.g. shearing blades, abutting blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/3806—Cutting-out; Stamping-out wherein relative movements of tool head and work during cutting have a component tangential to the work surface
    • B26F1/3813—Cutting-out; Stamping-out wherein relative movements of tool head and work during cutting have a component tangential to the work surface wherein the tool head is moved in a plane parallel to the work in a coordinate system fixed with respect to the work
    • 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

Definitions

  • the present invention relates to a machine for spreading fabric or other material in flexible sheets (e.g., leather, synthetic leather, polymeric sheets, etc.).
  • flexible sheets e.g., leather, synthetic leather, polymeric sheets, etc.
  • Machines for spreading fabric which are able to automatically spread on a spreading surface a pile of fabric pieces, or several piles in sequence, unwinding the fabric from a fabric roll or from a lapped fabric.
  • ile in the jargon “lay” means one (in the case of single-layer spreading) or more overlapping fabric pieces, regardless of whether the piece is separated (for example by cutting) from any overlying and underlying pieces, or is continuous with them.
  • Figure 1 shows an example of a known type machine 1 for spreading fabric, as disclosed and shown in the aforesaid patent 102016000035768 .
  • the machine 1 comprises a carriage 3 movable on the spreading surface 2 with forward-backward motion for spreading a fabric on the spreading surface 2 along a spreading direction 4 parallel to the spreading surface.
  • the carriage 3 comprises a platform 5 integral with the carriage itself for the support of an operator.
  • the carriage 3 comprises an unwinding system 6 comprising one or more rotation members for rotating a roll of fabric (not shown) for unwinding a fabric tract.
  • the carriage 3 comprises a cutting system 11 of the fabric arranged downstream of the unwinding system 6.
  • the machine 1 comprises a command-and-control electronic control unit 100 of the machine 1 connected to an interface 200 for an operator comprising a digital screen 201 on which the control unit 100, in use, displays an image (typically in top or "in plan" view) representative of the pile to be spread on the spreading surface of the machine 1.
  • the pile in plan has rectangular shape, with the long side parallel to the spreading direction and the short side parallel to the dimension perpendicular to the spreading surface and therefore also the image has rectangular shape. Since both the digital screen and the image have rectangular shape, it is advantageous viewing this image of the pile oriented with the long side arranged parallel to the long sides of the screen. In this way, the screen surface is optimally exploited.
  • the image displayed on the digital screen can show, superimposed to the pile of fabric to be spread, the positioning (in the jargon "panel template” or “marker”) of the panels to be printed and/or to be cut in a manufacturing step subsequent to the spreading.
  • a cursor can also be displayed (in the form of a rectilinear segment arranged perpendicular to the long side of the image and superimposed to the image) which, during the spreading, slides along the image parallelly to its long sides in synchrony with the current position of a physical reference of the carriage along the spreading direction.
  • Spreading direction means any straight line parallel to the trajectory of the rectilinear motion of the carriage.
  • the digital screen 201 is positioned so that each of the long sides is horizontal and also forms with the spreading direction 4 (taken incident to the long side) an acute angle 250 of about 60°.
  • such positioning of the digital screen can lead to a difficulty for the operator when the latter has to compare the image of the pile represented on the digital screen with the real pile, since the operator must perform a mental rotation (equal to about the aforesaid angle) for making the mental image acquired by the visualization on the digital screen and the real pile being spread spatially concordant.
  • This mental operation can make the aforesaid comparison non-ergonomic (and therefore being tiring) and/or slow down the aforesaid defect management procedure and/or generate mistakes by the operator.
  • the Applicant has therefore faced the problem of increasing the ergonomics of the spreading machine and/or reducing the mistakes of the operator and/or making the defect management procedure on the newly spread fabric faster and/or more reliable.
  • the invention relates to a machine for spreading fabric comprising:
  • the positioning of the digital screen such that a projection of each of the long sides on the spreading surface forms with the spreading direction of the pile of fabric an acute angle greater than or equal to -20° and less than or equal to 20° allows the operator who is using the machine to mentally compare in an intuitive and quick way the image representative of the pile of fabric in plan, when displayed on the digital screen with the spreading direction represented parallel to the long sides of the digital screen, and the real pile of fabric spread or being spread on the spreading surface.
  • these features allow that the space orientation of the digital image of the pile in plan is consistent with the space orientation of the real pile.
  • the present invention in one or more of the aforesaid aspects can have one or more of the following preferred features.
  • said first acute angle is greater than or equal to -10°, more preferably greater than or equal to -5°, even more preferably greater than or equal to -2°, and less than or equal to 10°, more preferably less than or equal to 5°, even more preferably less than or equal to 2°.
  • said first acute angle is equal to 0° (i.e., the projection of each of said long sides on the spreading surface is parallel to said spreading direction). In this way, the disorientation risk for the operator in the transition from the image represented on the digital screen to the view of the real pile is further reduced.
  • each of said long sides of the digital screen forms with said spreading surface a second acute angle greater than or equal to 0°, more preferably greater than or equal to 10°, even more preferably greater than or equal to 20°, and less than or equal to 80°, more preferably less than or equal to 60°, even more preferably less than or equal to 50°.
  • the digital screen is oriented with respect to the operator for allowing an ergonomic displaying of the image on the screen.
  • each of said short sides forms with a plane parallel to the spreading surface a third acute angle greater than or equal to -20° and less than or equal to 20°, more preferably greater than or equal to -10° and less than or equal to 10°, even more preferably equal to 0° (i.e., horizontal short sides). In this way the ergonomics of the platform in terms of operator's position is favoured.
  • said machine comprises an adjustment system structured for moving said digital screen for adjusting said first acute angle and/or said second acute angle within a respective range of values (preferably having an amplitude of at least 20°, more preferably of at least 30°).
  • said adjustment system is structured for rotating said digital screen respectively around a vertical axis and/or a horizontal axis and perpendicularly to the spreading direction.
  • said digital screen has a shape ratio, defined as a ratio between a long side and a short side, greater than or equal to 1.3, more preferably greater than or equal to 1.5, and/or less than or equal to 3, more preferably less than or equal to 2.5. In this way the plan visualization of the pile is optimized.
  • each long side has a length greater than or equal to 20 cm, more preferably greater than or equal to 30 cm, and/or less than or equal to 60 cm, more preferably less than or equal to 50 cm. In this way, the physical encumbrance of the interface is limited.
  • said carriage comprises a support, more preferably having box-like shape, for said interface, with said support positioned outside an encumbrance of said spreading surface.
  • the digital screen is integral with the carriage and in a position so that it can be comfortably viewed by the operator without obstructing the spreading.
  • said digital screen is a digital touch screen. In this way the interface is simplified and more ergonomic.
  • said interface comprises a keyboard operable by the operator through an object for sending commands to the command-and-control electronic control unit.
  • object is a finger of the operator or an external pointing device (as a "mouse").
  • said keyboard comprises a virtual keyboard, i.e., a keyboard displayed (by the control unit) on the digital screen.
  • said keyboard comprises a physical keyboard distinct from the digital screen.
  • said keyboard comprises both said virtual keyboard and said physical keyboard.
  • said carriage comprises a platform integral with the carriage itself for the support of an operator.
  • the carriage comprises an unwinding system comprising one or more rotation members for rotating a roll of fabric for unwinding a fabric tract and a cutting system of the fabric arranged downstream of the unwinding system.
  • command-and-control electronic control unit of the machine is connected to said carriage and it is programmed for commanding a movement of said carriage along said spreading direction and for commanding said unwinding system and said cutting system of the fabric
  • said command-and-control electronic control unit of the machine is connected to said interface for receiving a command signal from the operator, more preferably entered through said keyboard, and it is programmed for commanding, as a function of said command signal, an operation selected in the group: cutting, starting/blocking spreading of the pile of fabric, winding/unwinding of the fabric, etc.
  • said image is representative of said pile of fabric in plan (i.e., seen from above). In this it is possible managing the defects detected on the fabric spread.
  • said image has rectangular shape having respective long sides and short sides.
  • said image is oriented so that a dimension of said pile of fabric parallel to said spreading direction is represented parallelly to said long sides of the digital screen.
  • a dimension of said pile of fabric parallel to said spreading direction is represented parallelly to said long sides of the digital screen.
  • the electronic control unit is programmed for displaying a cursor superimposed to said image (more preferably a segment arranged parallel to the short sides of the image and having length equal to the short sides of the image), wherein an instantaneous position of said cursor onto the image corresponds to a current position of said carriage (e.g., of a physical reference on said carriage) with respect to said pile of fabric.
  • a cursor superimposed to said image (more preferably a segment arranged parallel to the short sides of the image and having length equal to the short sides of the image)
  • an instantaneous position of said cursor onto the image corresponds to a current position of said carriage (e.g., of a physical reference on said carriage) with respect to said pile of fabric.
  • the electronic control unit is programmed for displaying superimposed to said image a marker of a plurality of panels to be printed and/or to be cut subsequently to the spreading of the pile of fabric. In this way the operator can perform the above-described defects management procedure.
  • Figure 2 shows a machine 1 for spreading fabric according to the present invention.
  • the machine 1 comprises a carriage 3 movable on a spreading surface 2 with forward-backward motion to spread a pile of fabric on the spreading surface 2 along a spreading direction 4 parallel to the spreading surface 2.
  • the carriage 3 typically comprises a platform 5 integral with it for the support of an operator.
  • the carriage 3 comprises an unwinding system 6 comprising one or more rotation members for rotating a roll of fabric (not shown) to unwind a fabric strip and a cutting system 11 of the fabric arranged downstream of the unwinding system and comprising a cutting head.
  • an unwinding system 6 comprising one or more rotation members for rotating a roll of fabric (not shown) to unwind a fabric strip and a cutting system 11 of the fabric arranged downstream of the unwinding system and comprising a cutting head.
  • the carriage 3 comprises a support 50, exemplarily having box-like shape, positioned outside an encumbrance of the spreading surface 2.
  • the carriage 3 comprises a command-and-control electronic control unit 100 of the machine itself.
  • the support 50 has, for example on an external surface facing the platform 5, a user-machine interface 200 comprising a digital screen 201, exemplarily a digital touch screen.
  • the digital screen 201 has a rectangular shape comprising two long sides 202 and two short sides 203 ( Figures 3A-B ).
  • the long side 202 has a length of 40 cm and the short side 203 has a length of 20 cm (shape ratio equal to 2).
  • the digital screen 201 is schematically shown in a first embodiment wherein a projection of each of the long sides 202 on the spreading surface 2 forms with the spreading direction 4 a first acute angle equal to 0°.
  • Figure 2 shows that the projection of the long side 202 on the spreading surface 2 develops along the dashed line 300, parallel to the spreading direction 4.
  • the digital screen 201 is schematically shown in a second embodiment wherein the projection of each of the long sides 202 onto the spreading surface 2 forms with the spreading direction 4 a first acute angle 302 equal to about 10°.
  • Figure 3B schematically shows that the projection of the long side 202 on the spreading surface 2 develops along the dashed line 300, which forms with the spreading direction 4 (taken incident to this projection) the first acute angle 302 equal to 10°.
  • each of the long sides 202 of the digital screen 201 forms with the spreading surface 2 a second acute angle 301 equal to 45°. It should be noted that in figures 3A-B the value of the second acute angle 301 is the same (e.g., 45°) while the value of the first acute angle 302 is different, as explained above.
  • each of the short sides 203 is horizontally arranged, i.e., it forms with a plane parallel to the spreading surface 2 a third acute angle equal to 0°.
  • the machine 1 can comprise an adjustment system (not shown) for example connected to the support 50 of the digital screen 201 to allow the movement of the whole box-shaped body of the support 50 and the adjustment of the first 302 and/or of the second acute angle 301 within a respective range of values.
  • the range of values for the first acute angle 302 goes from a minimum of - 15° to a maximum of 15°
  • the range of values for the second acute angle 301 goes from a minimum of 20° to a maximum of 50°.
  • the adjustment system has for example two rotational degrees of freedom having a respective rotation axis 350 and 351 for adjusting the inclination of the digital screen respectively for the first 302 and the second acute angle 301.
  • the command-and-control electronic control unit 100 of the machine 1 is connected to the digital screen 201 and it is programmed for displaying (as schematically shown in Figure 4 ) on the digital screen 201 a rectangular image 400 representative of the pile of fabric to be spread on the spreading surface 2, in top view (i.e., a plan image of the pile).
  • a mobile cursor 402 (e.g., a segment as long as the short sides of the image 400) superimposed to the image represents instant by instant the current position of the carriage 3 (e.g., the position of a physical reference on the carriage) with respect to the pile of fabric.
  • the cursor 402 during the spreading, slides along the image 400 parallelly to the long sides 202 along a sliding direction representative of the spreading direction 4.
  • the marker (positioning of a plurality of panels 450) is displayed superimposed to the image 400.
  • the marker may not be displayed.
  • the interface 200 comprises a keyboard 500, exemplarily of the virtual type, operable by the operator through an object, for example an operator's finger.
  • the virtual keyboard can be operated by an external pointing device such as a mouse (not shown).
  • the keyboard can also comprise physical buttons (as shown in figure 2 ) incorporated on the surface of the support 50.
  • the keyboard 500 comprises a first plurality of buttons B1-B6 which can be operated by the operator to select an operation selected in the group: cutting, starting/blocking spreading of the pile of fabric, winding/unwinding of the fabric and a second plurality of buttons A1-A3 which can be operated by the operator to select a control operation of the spreading parameters and/or to set the parameters relating to the processing of the fabric (material, density, thickness, type of fabric - e.g., lapped fabric, non-woven fabric, knitted fabric - etc.).
  • command-and-control electronic control unit 100 is connected to the carriage 3 and it is programmed to command a movement of the carriage 3 along the spreading direction 4.
  • command-and-control electronic control unit 100 is also connected to the interface 200 for receiving a command signal entered by the user through the keyboard 500 and for performing one of the operations selected using the buttons.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Woven Fabrics (AREA)
EP21178313.9A 2020-06-19 2021-06-08 Maschine zum ausbreiten von stoff Pending EP3925739A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102020000014770A IT202000014770A1 (it) 2020-06-19 2020-06-19 Macchina per la stesura di tessuto

Publications (1)

Publication Number Publication Date
EP3925739A1 true EP3925739A1 (de) 2021-12-22

Family

ID=72356394

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21178313.9A Pending EP3925739A1 (de) 2020-06-19 2021-06-08 Maschine zum ausbreiten von stoff

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EP (1) EP3925739A1 (de)
IT (1) IT202000014770A1 (de)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4583181A (en) * 1983-06-30 1986-04-15 Gerber Scientific, Inc. Fabric flaw related system
US4961149A (en) * 1989-01-27 1990-10-02 Intellitek, Inc. Method and apparatus for marking and cutting a flexible web
GB2471370A (en) * 2009-06-22 2010-12-29 Thinking Ergonomix Pty Ltd A vertically adjustable monitor arm
WO2016181298A1 (en) * 2015-05-14 2016-11-17 Morgan Tecnica S.P.A. Machine for spreading fabric
DE202017101974U1 (de) * 2016-04-07 2017-04-28 Morgan Tecnica S.P.A. Maschine zum Ausbreiten von Stoff

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4583181A (en) * 1983-06-30 1986-04-15 Gerber Scientific, Inc. Fabric flaw related system
US4961149A (en) * 1989-01-27 1990-10-02 Intellitek, Inc. Method and apparatus for marking and cutting a flexible web
GB2471370A (en) * 2009-06-22 2010-12-29 Thinking Ergonomix Pty Ltd A vertically adjustable monitor arm
WO2016181298A1 (en) * 2015-05-14 2016-11-17 Morgan Tecnica S.P.A. Machine for spreading fabric
DE202017101974U1 (de) * 2016-04-07 2017-04-28 Morgan Tecnica S.P.A. Maschine zum Ausbreiten von Stoff

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