EP1590521A1 - Dispositif de coupe servant au decoupage thermique d'une bande textile en mouvement, notamment a motifs - Google Patents

Dispositif de coupe servant au decoupage thermique d'une bande textile en mouvement, notamment a motifs

Info

Publication number
EP1590521A1
EP1590521A1 EP04707182A EP04707182A EP1590521A1 EP 1590521 A1 EP1590521 A1 EP 1590521A1 EP 04707182 A EP04707182 A EP 04707182A EP 04707182 A EP04707182 A EP 04707182A EP 1590521 A1 EP1590521 A1 EP 1590521A1
Authority
EP
European Patent Office
Prior art keywords
cutting
cutting device
textile web
support
cutting knife
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.)
Granted
Application number
EP04707182A
Other languages
German (de)
English (en)
Other versions
EP1590521B1 (fr
Inventor
Peter Rickenbach
Theo Schmid
Stefan; Lenzin
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.)
Textilma AG
Original Assignee
Textilma AG
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
Priority claimed from CH00183/03A external-priority patent/CH697695B1/de
Application filed by Textilma AG filed Critical Textilma AG
Publication of EP1590521A1 publication Critical patent/EP1590521A1/fr
Application granted granted Critical
Publication of EP1590521B1 publication Critical patent/EP1590521B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • D06H7/22—Severing by heat or by chemical agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F3/00—Severing by means other than cutting; Apparatus therefor
    • B26F3/06—Severing by using heat
    • B26F3/08—Severing by using heat with heated members
    • B26F3/12—Severing by using heat with heated members with heated wires

Definitions

  • Cutting device for thermal cutting of a running, in particular patterned textile web
  • the invention relates to a cutting device for the thermal cutting of a running, in particular patterned textile web made of meltable material according to the preamble of claim 1.
  • the cutting device is particularly suitable for cutting a wide textile web of different thicknesses into individual tapes, in particular label tapes.
  • Cutting devices of the type mentioned are known several times. Such a cutting device is described in EP 0934437B, in which a wire-shaped cutting knife is clamped between a holder and a support for the textile web, the cutting knife, however, lying on the support in front of the support region of the textile web.
  • Several deflection points are offset from one another both in the longitudinal direction of movement of the textile web and in its vertical direction and thus form on the one hand support and on the other hand hold-down devices which twist the course of a treatment section. Due to the longitudinal tension of the textile web, its cut edges are pressed alternately against the deflection points and thereby smoothed.
  • the angled treatment section of the post-processing device formed by the offset deflection points has the disadvantage that it is difficult to thread the textile web into the angled treatment section. These difficulties are exacerbated when heavily patterned textile are tilbahnen process, the nature according countless floating pattern threads have ⁇ on the back.
  • the cutting device also tends to smear the cut edges. Apart from a possible ANPAS ⁇ the current solution no adjustments to the cutting properties of the cutting blade to the properties of the fabric are provided. In addition, the cutting device has a complicated structure.
  • Another thermal cutting device is known from WO9713023, in which a wire-shaped cutting knife clamped between a holder and a support is in turn arranged at a distance from the mounting area of the support.
  • a smoothing sheet is prestressed against the support area of the support, between which the cut edges to be smoothed pass.
  • the smoothing plate tends to smear the cut edges. It is also disadvantageous here that the cutting device is complicated and the insertion of the textile web to be cut is difficult. Here, too, an adaptation of the cutting properties to the properties of the textile web is not discernible.
  • the object of the invention is to improve a cutting device of the type mentioned.
  • the adjustment process can cut the textile web in the optimum temperature range of the cutting knife for the respective textile area.
  • textile webs of different thicknesses are optimally cut possible with the simplest construction of the cutting device.
  • a textile web, in particular a patterned textile web can thus be cut in its thick as well as thin areas in such a way that the cut edges are characterized by closed and tear-resistant ends.
  • Such a cutting knife can be blade-shaped or preferably wire-shaped.
  • the hold-down device can have any shape, but the embodiment according to claim 6 is preferred, according to which the hold-down device has a shape that is arched against the textile web in order to improve the sliding behavior on the textile web. Analogously, the support according to claim 7 can also be arched against the textile web.
  • Embodiments of the cutting device according to claims 8 and 9 allow both a preliminary storage and a reordering of the hold-down with respect to the support.
  • the upstream or downstream hold-down device can either pretension the textile web against the support in order to cut the textile web in the support area or the textile web runs through the cutting knife without any support and thus in a higher temperature range.
  • the cutting knife can be placed in front of the support.
  • the embodiment according to claim 10 is particularly advantageous, in particular in connection with claim 7, according to which the support has a shape that is curved against the textile web and the cutting knife is arranged at least approximately at the apex of the curvature. This results in a relatively short-term support on a small support area, which makes it possible to operate the cutting knife at a relatively low temperature, since the heat dissipation is small.
  • pivot axis of the cutting knife lies in an area of the hold-down device.
  • a particularly advantageous alignment is achieved if the apex of the hold-down device lies on the pivot axis of the cutting knife. This arrangement allows the textile web to always be tensioned by the hold-down device when the positions of the cutting device change.
  • the cutting device can be designed to be stationary as a single device.
  • the embodiment according to claim 12 is more advantageous, according to which the holders holding the cutting knife are fastened to a housing which is arranged on a support which overlaps the textile web and can be moved and locked along the same, for example to cut textile tapes of different widths.
  • Several housings with cutting knives can also be arranged on the carrier in order to cut the textile web into corresponding textile bands.
  • the cutting knife can be adjusted by hand.
  • the cutting device is adjusted by means of an actuator.
  • the latter can be controlled via the control device.
  • the control device uses the signal of a sensor for scanning the textile web. The signal can therefore be used directly to control the setting of the cutter.
  • the signal from the sensor can be used to control other cutting parameters, such as the current intensity of the cutting knife or the feed speed of the textile web to further optimize the cutting process.
  • the control parameters mentioned can be quickly adapted when cutting different textile webs, whereby the service life of the machine, in contrast to manual alignment of the cutting device, can be further reduced. It is also conceivable to pre-program the cutting parameters of known textile webs directly in the control device, which would further automate the setting process of the cutting device.
  • Claims 15 to 17 describe an advantageous embodiment of a pivotable carrier which can be connected to an actuator in terms of drive.
  • the carrier is rotatably arranged on both sides on pivot levers. This arrangement allows easy adjustment and alignment of the cutting knife with respect to the textile web.
  • a further development according to claim 17 is expedient, according to which the support has a bearing pin at both ends, which engages in a bearing in the pivoting lever and can be locked there by means of a locking device.
  • Claim 18 describes an embodiment variant according to the invention, in which the cutting device is arranged on a carrier and this can be moved vertically by means of an actuator.
  • the cutting knife is set in the thicker figure area in such a way that a hold-down device, which is arranged downstream or in particular in front of the support, prestresses the textile web against the support in order to cut the textile web in the apex area of the support. If the cutting knife is fastened directly in the support area, a stabilization of the cutting edges of the separate textile web on the support side.
  • the cutting device ensures that the front of the textile web can be cut at a lower temperature, with the floatings melting back on the back.
  • the lower temperature results in less melt mass, which leads to a softer cutting edge.
  • the cut edge remains straight and leaves a good visual impression. Since the floats of the pattern threads, which are required to pattern the textile web, melt back, no colored edges can be seen on the figure side.
  • the V-type cut also melts the floats back, which improves the tear-out strength of the edges, despite less melt mass on the figure side. This prevents smearing of the cut edges.
  • the cutting knife is pivoted in such a way that the cutting point moves towards the center of the cutting knife at higher temperatures, and the textile web is also cut without any restrictions.
  • the higher temperatures ensure that the cut edges in the thin base area of the textile webs melt well against chipping.
  • FIG. 1 shows a cutting device in a cutout in a diagrammatic representation
  • Figure 2 shows the cutting head of the cutting device of Figure 1 in side view and on a larger scale
  • Figure 3 shows the cutting device of Figure 2 in section III-III;
  • Figure 4a shows the cutting device with control in the basic position
  • FIG. 4b shows the cutting device of FIG. 4a in the pivoted position
  • Figure 5a shows the cutting device with control in the first position
  • FIG. 1 shows a cutting device which has one or preferably also a plurality of cutting devices 2, the housings 4 of which are adjustably arranged on a carrier 8 via a longitudinal guide 6.
  • the carrier 8 overlaps a textile web and is, for example, part of a weaving machine, so that such cutting devices can be arranged transversely to the textile path of the weaving machine in order to make corresponding cuts on the textile web.
  • a wide patterned textile web can be cut into strips, preferably patterned labels. The width of the strips is adjusted by means of the division 10 of the longitudinal guide 6.
  • holders 12, 14 are fastened to the housing 4 of the cutting device 2 and carry a hold-down device 16 on the one hand and a support 18 on the other hand, between which an electrically heatable wire-shaped cutting knife 20 is clamped, for example by means of screws 22 .
  • the support 18 has a curved shape, the apex 24 of which on the one hand serves to support the textile web 26 to be cut and on the other hand the cutting knife 20 is fastened.
  • the hold-down device 16 is spaced upstream of the cutting knife 20 and the support 18 on the inlet side 28 in such a way that it prestresses the textile web 26 against the support 18 and is easy to set up, that is to say introducing the textile web onto the cutting device allows.
  • the hold-down device 16 also has a shape curved against the textile web 26.
  • Bearing bolts 30 are fixedly arranged at the end regions of the carrier 8. The latter engage in bearing points (not shown in FIG. 1) formed on swivel levers 32, which enable the carrier 8 to be easily aligned.
  • swivel levers 32 When aligning the cutting device to the textile web 26, it is advantageous that the apex 36 of the hold-down device 16 lies on the pivot axis 38 of the pivot lever 32.
  • the pivot levers 32 are rotatably connected to a frame 42 via simple pin joints 40.
  • the aligned carrier is finally locked in position by means of an adjusting screw 44 on the pivot levers 32.
  • the pivoting of the carrier 8 takes place via an actuator 46 rotatably arranged on the frame 42. Since only one actuator 46 is required for pivoting, only one of the two pivoting levers has an arm 48.
  • a lifting rod 50 of the actuator 46 is rotatably arranged on the latter by means of a pin joint 53.
  • the actuator 46 is rotatably connected to the frame at its other end region via a joint 52. When the actuator 46 is actuated, its lifting rod 50 moves and thereby pivots the pivot lever 32 or the carrier 8 about the pivot axis 38.
  • the aligned cutting device pivots about the apex 36 of the hold-down device 16.
  • FIG. 3 shows the cutting point and the temperature distribution 54 on the cutting knife 20. From this it can be seen that the temperature in the area of the support 18 is lower than at a distance from it. This results in a V-like cut 56 on the textile web 26. This results in a clean cut 58 on the textile web 26 on the underside 60 of the textile web, which here is the visible side and thus the figure side of the textile web. Against the upper side 62, which is exposed to the higher temperature of the cutting knife 20, there is a melting back, which affects in particular the floating pattern threads on the upper side 62 of the textile web 26, which affect the rear side of the textile track 26 is. This also leads to a stronger melting of the textile web on the top or the back and thus an improved fixation of the floating pattern threads.
  • Similar embodiment variants are conceivable with regard to the preferred embodiment variant shown in FIGS. 1 to 3.
  • the support is arranged at the top and the hold-down device at the bottom.
  • This variant also allows the textile web to be cut according to the invention, according to which the cutting knife 20 can be adjusted in such a way that the cutting point on the cutting knife can be selected by means of a control device.
  • the hold-down device can also be arranged downstream, if necessary.
  • FIGs 4a and 4b show a schematic representation of the control of the cutting device.
  • a sensor 64 scans the thickness of the textile web 26 in the vicinity of the cutting point and passes this signal to a control device 66.
  • the sensor 64 is preferably positioned upstream of the cutting knife 20, as shown in FIG. 4a.
  • the intended function of the sensor is only the detection of different thicknesses of the textile web.
  • the functioning of the sensor can be based on different physical principles, in particular optical methods, such as the detection of a pattern on a textile web.
  • the cutting device In the basic position, the cutting device is in its non-pivoted position, as shown in FIG. 4a.
  • the hold-down device 16 pretensions the textile web 26 against the support 18 and the cutting takes place at the apex 24 of the support 18.
  • the cut edges have the typical V-like cut 56.
  • the actuator 46 is activated by the control device 66.
  • the cutting device 2 is pivoted about the pivot axis 38 of the pivot lever 32, the cutting point being displaced toward the center of the cutting knife 20.
  • the cutting device assumes the position shown in FIG. 4b.
  • the smooth cutting of thin areas The textile web at higher temperatures of the cutting knife has the advantage that the cut edges are closed and have chipping-resistant endings.
  • the signal from the sensor 64 can also be used to control other cutting parameters, such as the current 68 of the cutting knife or the feed speed 70 of the textile web, in order to further optimize the cutting process.
  • the cutting parameters of known textile webs can be preprogrammed directly in the control device, so that repeated setting of the cutting parameters for different textile webs is not necessary.
  • FIGS. 5a and 5b A further embodiment variant is shown in FIGS. 5a and 5b.
  • the cutting device is not pivoted but moved vertically, with which the cutting point on the cutting knife 20a can be selected according to the invention.
  • the structure of the control device 66 is analogous to the previous example.
  • a signal from a sensor 64 is passed to a control device 66.
  • the latter controls an actuator 46a which is connected to a carrier so that the cutting knife 20a clamped between the holders 12a, 14a can be moved vertically.
  • the textile web 26 can be cut in an apex 24a of the support 18a (FIG. 5a) or it runs through the cutting knife 20a without support and thus in a region of higher temperature, which corresponds to the position of the cutting knife in FIG. 5b.
  • FIGS. 5a and 5b The embodiment variant shown in FIGS. 5a and 5b is characterized in that the support 24a is arranged on the holder 12a. It is also conceivable to arrange the support 24a on the holder 14a. Furthermore, either a hold-down device could be arranged on one of the holders 12a or 14a or as a separately formed part of the cutting device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Details Of Cutting Devices (AREA)

Abstract

L'invention concerne un dispositif de coupe servant au découpage thermique d'une bande textile (26) en mouvement, notamment à motifs, constituée d'un matériau fusible. Ce dispositif présent une lame, pouvant être chauffée électriquement, serrée entre deux éléments de maintien (12,14). La lame (20) peut être ajustée de sorte que le point de coupe puisse être sélectionné sur la lame au moyen d'un dispositif de commande. Cet ajustement permet de réaliser le découpage de la bande textile dans la plage de température de la lame, qui est optimale pour chaque zone de textile, étant donné que le point de coupe peut être sélectionné sur la lame au moyen d'un dispositif de commande et que, d'autre part, la lame présente, entre ses extrémités du serrage, un profil de température qui augmente vers sa zone centrale.
EP04707182A 2003-02-06 2004-02-02 Dispositif de coupe servant au decoupage thermique d'une bande textile en mouvement, notamment a motifs Expired - Fee Related EP1590521B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
CH183032003 2003-02-06
CH00183/03A CH697695B1 (de) 2003-02-06 2003-02-06 Schneidvorrichtung zum thermischen Schneiden einer laufenden, insbesondere gemusterten Textilbahn.
CH173203 2003-10-10
CH17322003 2003-10-10
PCT/CH2004/000054 WO2004070103A1 (fr) 2003-02-06 2004-02-02 Dispositif de coupe servant au decoupage thermique d'une bande textile en mouvement, notamment a motifs

Publications (2)

Publication Number Publication Date
EP1590521A1 true EP1590521A1 (fr) 2005-11-02
EP1590521B1 EP1590521B1 (fr) 2009-03-18

Family

ID=32851617

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04707182A Expired - Fee Related EP1590521B1 (fr) 2003-02-06 2004-02-02 Dispositif de coupe servant au decoupage thermique d'une bande textile en mouvement, notamment a motifs

Country Status (3)

Country Link
EP (1) EP1590521B1 (fr)
DE (1) DE502004009173D1 (fr)
WO (1) WO2004070103A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3722471A1 (fr) 2019-04-10 2020-10-14 Textilma AG Procédé de fabrication de bandes de tissus coupées à froid

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH600027A5 (fr) * 1976-10-20 1978-06-15 Mueller Jakob Forschungs Und F
CH680227A5 (en) * 1989-10-30 1992-07-15 Loepfe Ag Geb Installation for thermal cutting of textiles
DE19644534C2 (de) * 1996-10-26 2001-03-22 Vaupel Textilmaschinen Gmbh & Vorrichtung zum Längstrennen einer schmelzfähigen Breitbahn in mindestens zwei Bändern, insbesondere in gemusterte Etikettbänder

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004070103A1 *

Also Published As

Publication number Publication date
EP1590521B1 (fr) 2009-03-18
WO2004070103A1 (fr) 2004-08-19
DE502004009173D1 (de) 2009-04-30

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