EP3181743B1 - Schärmaschine - Google Patents

Schärmaschine Download PDF

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Publication number
EP3181743B1
EP3181743B1 EP15200308.3A EP15200308A EP3181743B1 EP 3181743 B1 EP3181743 B1 EP 3181743B1 EP 15200308 A EP15200308 A EP 15200308A EP 3181743 B1 EP3181743 B1 EP 3181743B1
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EP
European Patent Office
Prior art keywords
image recording
warping
recording device
image
warping machine
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.)
Active
Application number
EP15200308.3A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3181743A1 (de
Inventor
Martin Fuhr
Christian Ruis
Jens Stöckmann
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.)
Karl Mayer Stoll R&D GmbH
Original Assignee
Karl Mayer Stoll R&D GmbH
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 Karl Mayer Stoll R&D GmbH filed Critical Karl Mayer Stoll R&D GmbH
Priority to ES15200308T priority Critical patent/ES2898453T3/es
Priority to EP15200308.3A priority patent/EP3181743B1/de
Priority to CN201610170877.4A priority patent/CN106884243B/zh
Publication of EP3181743A1 publication Critical patent/EP3181743A1/de
Application granted granted Critical
Publication of EP3181743B1 publication Critical patent/EP3181743B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02H—WARPING, BEAMING OR LEASING
    • D02H3/00—Warping machines
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02H—WARPING, BEAMING OR LEASING
    • D02H3/00—Warping machines
    • D02H3/02—Sectional warpers

Definitions

  • the invention relates to a warping machine which has a warping drum with a winding area, a thread sheet guide and a control device which controls a movement of the warping drum and thread sheet guide relative to one another, with an image recording device which is directed at at least a part of the winding area on which the Operation of the warping machine forms a lap to which the control device is connected.
  • Such a warping machine is off DE 20 2005 012 287 U1 known.
  • a first measuring device is provided here for recording the winding length of the chain.
  • a second measuring device is used to record the belt tension.
  • a third measuring device in the form of a laser or a camera is used to record the contour of the individual strips on the warping drum to determine the radial thickness of the strips.
  • Such a warping machine is used to produce a warp, as it is required later in the production of woven or warp knitted goods.
  • a thread sheet In the manufacture of a chain, a thread sheet is often pulled off a creel and wound onto the circumference of the warping drum.
  • the thread sheet is also known as a "ribbon".
  • the ribbon is much narrower than the desired width of the chain.
  • the ribbon When the ribbon has been wound with the desired length of the chain, it is offset by the width of the ribbon and the winding process begins again. This is repeated until the desired width of the chain has been achieved.
  • the warping drum In order to prevent threads from falling on the free end face of the winding that is being formed, the warping drum often has a conical diameter enlargement at one end.
  • the cone then has an angle of 15 °, for example.
  • the ribbon When the ribbon is wound up, the ribbon is slowly moved up the cone, so that on the side of the winding that is being formed that is remote from the cone, a similar, conical end face of the winding that is being formed is created. This lateral movement of the ribbon requires a relative movement between the thread sheet guide, which guides the threads of the ribbon, and the warping drum.
  • the control of this relative movement is intended to ensure that the circumferential surface of the winding that is being formed always remains parallel to the circumferential surface of the warping drum. If, for example, the ribbon is led up the cone too quickly, then a surface with an inclination will form, the sign of which corresponds to the inclination of the cone. If, on the other hand, the ribbon is moved sideways too slowly, the surface is inclined with the opposite sign.
  • DE 43 04 956 A1 shows a device for warping threads in which an electronic line camera or other video camera is used to determine the diameter of the lap being formed.
  • EP 2 169 098 A1 shows a cone warping machine in which a laser light sensor is provided as a measuring device with which the inclination of the roll can be determined in an area adjacent to the cone.
  • EP 0 344 115 A2 describes a device for regulating the thread band width in warping machines, in which a line camera is provided which continuously measures the band width of the thread band. The values determined serve as actual values for a control circuit that adjusts the width of a warping reed.
  • EP 0 043 368 A2 describes a winding machine for winding strand-shaped winding material onto a spool.
  • a television camera is provided in order to determine the position of the lateral turn flank of the last-mentioned turn of the winding material.
  • DE 43 04 955 A1 describes a method for rebanging threads onto a warp beam and an associated beaming machine, in which a measuring device in the form of a line camera is provided, with which the diameter of the lap being formed can be determined.
  • the image recording device having an image recording area, the width of which is greater than the width of the thread bundle guide, the image recording device generating several images of the lap one after the other and being connected to an image evaluation device which recognizes where a surface of the roll runs so that the image recording device (12) can capture an area which is formed from at least one already wound ribbon, and a further area which is formed by the surface of the warping drum, and determines an inclination of the surface of the roll .
  • An image recording device for example a camera arrangement, is used to monitor the build-up of the lap on the warping drum continuously or at short intervals.
  • the image recording device generates an image of the lap. This picture provides information about the structure of the coil at a specific point in time. Several successively recorded images then provide information about the course of the build-up of the lap.
  • the image recording device can be positioned at a certain distance from the warping drum so that there is no contact with the roll.
  • the image recording device is a "passive" element from which no radiation or the like emanates, so that it is not necessary to ensure that operators are protected.
  • the control device can use an image processing program, for example, to evaluate the image or images delivered by the image recording device.
  • such an image processing program only needs to recognize where the surface of the winding that is being formed runs. This is possible with simple means. So not only is the width of the thread sheet from which the lap is formed, but areas can also be detected which are arranged adjacent to it. If several ribbons have already been wound up, the image recording device can capture an area consisting of at least one already wound
  • Ribbon is formed, and another area that is formed by the surface of the warping drum.
  • the image evaluation device for example, it can be determined which part of the image depicts the roll and which part does not. The desired information about the lap can then be obtained from this information.
  • the image evaluation device can be part of the control device.
  • the image recording device preferably has an optical axis which is directed parallel to a tangent to the warping drum.
  • the term "parallel to a tangent” is not to be understood strictly in a mathematical sense. Deviations of the order of magnitude of ⁇ 25 ° from the tangent are quite possible.
  • the optical axis of the image recording device should, however, be aligned in such a way that the image recording device, on the one hand, detects the lap that forms on the warping drum and, on the other hand, a "background", which then advantageously differs from the lap, so that one can easily can see in which area of the image the coil is shown and in which area of the image it is not.
  • the image evaluation device is preferably connected to an image storage device. From time to time or continuously, images can then be stored in the image storage device which show the progress in building the lap.
  • the image evaluation device preferably determines an application height of the roll. In this way, the image recording device and the image evaluation device take over the task that was previously performed by a touch sensor or a laser sensor. However, the image evaluation device can determine the application height of the roll not only selectively, i.e. on a small area of the width of the ribbon, but practically across the entire width of the ribbon.
  • the image evaluation device determines an inclination of the surface of the roll. Since the image evaluation device is able to detect the entire width of the ribbon, it is also able to determine whether individual areas of the surface of the winding being formed are at a greater distance from the surface of the warping drum than other areas. If this is the case, the surface of the winding that is being formed is inclined and the speed of the relative movement between the thread sheet guide and the warping drum must be changed.
  • the image evaluation device preferably has a comparison device which compares a line representing the surface of the roll with a reference line.
  • the reference line can be formed, for example, by a row of pixels in a recording area of the image recording device.
  • the image evaluation device can then determine in a simple manner whether the line representing the surface of the roll runs parallel to this reference line or not. If it is not parallel to the reference line, it means that the surface of the roll is inclined. In this case, a correction of the feed movement, that is to say the relative movement between the thread sheet guide and the warping drum, is necessary.
  • the image evaluation device determines the width of the chain. This can be done in several ways. On the one hand, it is possible for the image recording device to be able to capture the entire width of the chain. It is also possible, however, for the image evaluation device to put several images together and to determine the width of the chain therefrom. These images can have been stored in the image storage device mentioned above. For example, you can proceed in such a way that at the end of the winding of each ribbon an image is generated and these images are then later arranged overlapping so that they represent the complete wound chain.
  • the image recording device and the thread sheet guide are preferably mounted on a warping table.
  • the image recording device and the thread cluster guide are therefore moved together. This makes it possible to ensure in a simple manner that the image recording device can always record the currently wound ribbon.
  • the image recording device is directed towards the top of the drum.
  • the top of the drum is the area that lies in the direction of gravity above the axis of rotation of the warping drum.
  • the image recording device “sees” the warping drum, so to speak, from above or obliquely from above and can thereby capture the chain that is being formed.
  • a background device is arranged on a side of the warping drum facing away from the image recording device, at least in the field of view of the image recording device.
  • the background device can, for example, have a single-colored, flat surface which forms a good contrast to the threads of the warp. This facilitates a later evaluation by the image evaluation device.
  • the image recording device can also be directed towards the underside of the drum.
  • the drum underside is the area of the warping drum in the direction of gravity below the axis of rotation of the warping drum.
  • the image recording device can be arranged, for example, below the flock table, so that the area above the flock table remains free.
  • the underside of the drum are in the Usually defined optical conditions are available, ie the background does not usually change.
  • a lighting device is preferably provided which is directed at the winding area.
  • the lighting device illuminates the "field of view” of the image recording device and therefore enables high-quality images to be obtained.
  • the lighting device and the image recording device are coupled to one another. So when the image recording device is moved, the lighting device moves with it.
  • Fig. 1 shows in a highly schematic form a warping machine 1 with a warping drum 2 which is rotatably driven about an axis of rotation 3.
  • the warping drum 2 has at one axial end a conical section 4 which encloses an angle of 15 ° with the axis of rotation 3, for example.
  • the warping machine 1 can also be referred to as a "conical warping machine”.
  • the invention is also applicable to other warping machines, for example sample warping machines.
  • a thread sheet 5 is pulled off a gate, not shown in detail, and guided onto the warping drum 2 in the direction of an arrow 6.
  • the thread sheet 5 can also be referred to as a "ribbon".
  • the thread sheet 5 is guided through a thread sheet guide 7 which is arranged on a warping table 8.
  • the thread sheet 5 is then guided over a deflection roller 9 and directed onto the surface of the warping drum 2.
  • the sheet guide 7 is moved relative to the warping drum 2, parallel to the axis of rotation 3.
  • This movement is brought about by a drive 10, which is connected to a control device 11.
  • the control device 11 controls the drive 10 and thus the movement of the warping table 8.
  • This movement should ideally take place in such a way that the thread sheet 5 is guided up the cone while the surface of the winding being formed remains parallel to the circumferential surface of the warping drum 2, more precisely the area the warping drum 2, which connects to the conical section 4.
  • the increase in diameter from the The thread sheet 5 forming winding and the relative speed between the thread sheet guide 7 and the warping drum 2 must be coordinated so that the end of the thread sheet 5 adjacent to the cone section 4 exactly follows the course of the cone section 4.
  • the warping machine 1 has an image recording device 12, which can also be referred to as a "camera arrangement".
  • the image recording device 12 has optics 13.
  • the optics 13 have an optical axis 14 which is directed parallel to a tangent on the circumference of the warping drum 2.
  • the term “circumference” means the circumference of the warping drum 2 outside the conical section 4.
  • the term “tangential” is not to be understood here in a strictly mathematical sense. Deviations of ⁇ 25 ° are permissible. It is also permissible if the optical axis 14 does not affect the warping drum 2, but is arranged parallel to the tangent.
  • the image recording device 12 can generate an image in which, on the one hand, the lap forming from the thread sheet and, on the other hand, a background can be seen, the background being intended to differ from the lap.
  • a “viewing area” 15 which fulfills this requirement is shown schematically by dashed lines.
  • the thread sheet 5 When the thread sheet 5 has been wound onto the warping drum 2 in such a way that the desired length of the chain to be produced is obtained, the thread sheet 5 is offset by its width and the winding process starts again.
  • the thread sheet now referred to as the "new thread sheet” then immediately adjoins the thread sheet that has already been wound up. In any case, the image recording device 12 detects the currently wound thread sheet.
  • a background device 16 can be used on the side facing away from the image recording device 12 Warping drum 2 is arranged.
  • the background device 16 can, for example, have a surface 17 with a uniform color, for example gray or white, so that there is sufficient contrast to the roll.
  • the image recording device 12 is mounted on the sharpening table 8 via a holder 18.
  • the image recording device 12 is therefore moved together with the warping table 8. In this way it can be ensured in a simple manner that the image recording device 12 can always capture the thread sheet 5 and thus the lap formed from the thread sheet 5.
  • the image recording device 12 has an image recording area, the width of which is greater than the width of the thread sheet guide 7. The width is therefore always greater than the width of the thread sheet 5.
  • the image recording device 12 can thus also record areas that are to the left and right of the thread sheet 5 or are arranged next to the winding formed from the thread sheet 5.
  • the image recording device 12 is connected to an image evaluation device 19.
  • the image evaluation device 19 can be part of the control device 11. It is also possible to use a separate image evaluation device 19.
  • the image evaluation device 19 can be connected to an image storage device 20.
  • the images recorded by the image recording device 12 can be stored continuously or from time to time in the image storage device 20. For example, at the end of the winding process of each thread sheet 5, an image can be generated and this image can be stored in the image storage device 20.
  • a winding 21 is shown schematically, which has been wound onto the circumference 22 of the warping drum 2 and in the process has been guided up the conical section 4.
  • the course of the surface of the warping drum 2 is shown by a dashed line 23.
  • the image evaluation device can now determine a line 24 which forms the surface of the roll 21. A distance between this line 24 and the circumference 22 results in an application height H. This application height H can be used by the control device 11 to control the drive 10.
  • Fig. 4 is shown schematically how to determine a width B of a chain which is formed from a plurality of coils 21.
  • the image recording device 12 can either capture the entire width of the chain if the optics 13 allow this.
  • One can also proceed in such a way that the images recorded in the image storage device 20 at the end of the winding process are combined and the width B of the chain is then determined from the combined image.
  • a further option is shown as to how one can work with the image recording device 12.
  • a winding 21 is shown in which the thread sheet 5 has been led up the conical section 4 too quickly. Accordingly, there is an inclined surface, as shown by a line 24. This line can be detected by the image evaluation device 19. If such a case occurs, the control device 11 must change the permissible speed between the warping drum 2 and the warping table 8.
  • the inclination of the line 24 is shown here in an exaggerated manner.
  • the image evaluation device 19 can already detect an inclination when it is in the order of magnitude of 1 °. Accordingly, the control device 11 can promptly change the Effect the relative speed between the thread sheet guide 7 and the warping drum 2 in order to align the line horizontally again, that is, parallel to the circumference 22 of the warping drum 2.
  • a lighting device 25 can also be provided, which is directed onto the winding area of the warping drum 2, that is to say onto the area in which the image recording device 12 is to acquire the corresponding image.
  • the lighting device 25 and the image recording device 12 are expediently coupled to one another.
  • the lighting device generates a light cone 26 which illuminates this area to a sufficient extent.
  • the image recording device 12 shown With the image recording device 12 shown, a lot of information can be obtained that can be used to control the warping machine 1. In addition to measuring the application height H and measuring the width B of the chain, a quality evaluation can also be carried out. With the help of the images supplied by the image recording device 12, for example, individual parameters, such as the inclination of the surface, can be recorded for each ribbon and the roll wound therefrom, and this can also be recorded.
  • the image recording device 12 it is possible to set up the image recording device 12 to be connected to a service station via a remote query.
  • the current warp belt can then be displayed to a service technician so that he can get an impression of the chain in the event of problems.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Warping, Beaming, Or Leasing (AREA)
EP15200308.3A 2015-12-16 2015-12-16 Schärmaschine Active EP3181743B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
ES15200308T ES2898453T3 (es) 2015-12-16 2015-12-16 Urdidora
EP15200308.3A EP3181743B1 (de) 2015-12-16 2015-12-16 Schärmaschine
CN201610170877.4A CN106884243B (zh) 2015-12-16 2016-03-24 整经机

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP15200308.3A EP3181743B1 (de) 2015-12-16 2015-12-16 Schärmaschine

Publications (2)

Publication Number Publication Date
EP3181743A1 EP3181743A1 (de) 2017-06-21
EP3181743B1 true EP3181743B1 (de) 2021-09-08

Family

ID=54936822

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15200308.3A Active EP3181743B1 (de) 2015-12-16 2015-12-16 Schärmaschine

Country Status (3)

Country Link
EP (1) EP3181743B1 (es)
CN (1) CN106884243B (es)
ES (1) ES2898453T3 (es)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3024095A1 (de) * 1980-06-27 1982-01-21 Rosendahl Industrie-Handels AG, Schönenwerd Wickelmaschine zum aufwickeln von strangfoermigem wickelgut auf eine spule
CH672147A5 (es) * 1987-04-10 1989-10-31 Benninger Ag Maschf
CH678196A5 (es) * 1988-05-27 1991-08-15 Benninger Ag Maschf
DE4304955A1 (de) * 1993-02-18 1994-08-25 Mayer Textilmaschf Verfahren zum Umbäumen von Fäden auf einen Kettbaum und zugehörige Bäummaschine
DE4304956C2 (de) * 1993-02-18 1998-09-24 Mayer Textilmaschf Verfahren und Vorrichtung zum Schären von Fäden
DE202005012287U1 (de) * 2005-06-22 2005-11-03 H.K.O. Isolier- Und Textiltechnik Gmbh Bandscheranlage zur Kettbaumherstellung
EP2169098A1 (de) * 2008-09-25 2010-03-31 Benninger AG Verfahren zum Betrieb einer Konusschärmaschine und Konusschärmaschine
EP2540882B1 (de) * 2011-06-28 2013-09-18 Karl Mayer Textilmaschinenfabrik GmbH Musterkettenschärmaschine
CN204625903U (zh) * 2015-05-26 2015-09-09 海宁市成达经编有限公司 一种家纺面料的纱线整经设备

Also Published As

Publication number Publication date
CN106884243B (zh) 2020-06-05
CN106884243A (zh) 2017-06-23
EP3181743A1 (de) 2017-06-21
ES2898453T3 (es) 2022-03-07

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