• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    In the method for cutting a material layer (47) on an embroidery base (45), a laser beam (51) is guided in a space (35), which space (35) is under negative pressure by suction of air. The focal point (49) of the laser beam (51) lies in the material layer (47), which lies over the opening (41). At higher negative pressure in the cutting device (9), the material layer (47) is attracted to the opening (41) and comes exactly to the focal point (49) of the laser beam (51) to lie and is cut there. At lower negative pressure only impurities and gases are sucked off.
    公开号:CH710614A2
    申请号:CH01047/15
    申请日:2015-07-17
    公开日:2016-07-15
    发明作者:Lässer Franz；Gerster Karl-Heinz
    申请人:Lässer Ag；
    IPC主号:
    专利说明:

    The invention relates to a method for applying by means of an embroidery machine or sewing machine flat pieces of material of desired shape on an embroidery floor according to the preamble of claim 1. The invention is further an apparatus for an embroidery or sewing machine to on the embroidery floor to cut out flat pieces of material from a material applied to the base material according to the preamble of patent claim 7.
    Under embroidery machines in the context of the invention are large embroidery machines with a variety of up to a thousand or more needles understood, with which embroidery patterns are embroidered on a stitching, which can extend over the entire length of the machine. Next are referred to as embroidery machines and small stitching machines with horizontally arranged embroidery bottom and quilting machines. Under sewing machines on which can be embroidered, machines are understood that also generate embroidery patterns on a embroidered in an embroidery hoop, which can be driven by a drive device in the X / Y direction. For all machines, i. the embroidery machine and the sewing machine, the needle in the Z direction can be driven and the embroidery ground in the X / Y direction with respect to the needles movable.
    When embroidering the imagination knows no bounds, which is why often not only embroidery, consisting of shorter or longer stitches are made, but that in addition to the stitching pieces of material, so-called applications of the same or another or different colored material, embroidered and then cut out become.
    Until a few years ago, it was common practice to perform cutting either by hand or with simple hand-held machines.
    It is also known that recently used to cut the applications on the embroidery machines a laser. In this case, a laser beam, guided by the machine electronics and with mirrors and focused with lenses on the application, so that with the focus placed in the application, the cutting can be performed. Such a device is known for example from DE 10 2005 050 482 by Saurer. A disadvantage of this device are the huge effort and low cutting performance. The effort is in a movable along the embroidery machine, box-shaped device that includes a completed over the embroidery space for sucking the generated by cutting or burning out the application of gases and other pollutants, and the complex electronics and optics for guiding the laser beam whose focus must be constantly corrected by the deflection of the laser beam along the embroidery. The low productivity is that only a small field of embroidery can be processed by a maximum of 50 x 50 cm and then adjusted the cutting device along the embroidery machine and adjusted at the new location on the existing there embroidery. In addition, cutting with the known lasers becomes more expensive in that a separating layer must be inserted between the embroidery base and the application, which prevents the embroidery base from being damaged by the heat at the focal point of the laser beam. The release layer must be removed later by washing out.
    From EP 1983 383 a method and a device are further known in which arranged on the embroidery machine heating tips allow the cutting out of an existing synthetic fibers application. Advantageously, in this device, in contrast to the known laser cutting device, are cut over the entire length of the embroidery machine at different points simultaneously. On the one hand, this device makes it possible to cut with a plurality of cutting points at the same time, without the need for suction for resulting vapors. The only disadvantage of the device is that with a heatable tip only applications can be cut from a fusible or low melting plastic material. Natural fibers such as cotton, wool or leather can not be cut with this device.
    An object of the present invention is to provide a method and a device with which both fusible applications and non-fusible applications can be cut.
    Another object of the invention is that the cutting is made possible not only at a single point, but at a variety along the embroidery machine arranged locations simultaneously.
    Another object is to provide a device with which the application is positioned exactly at the optimum location to the cutting element not only in the XY direction, but also in the Z direction and guided during cutting in the optimal position to the effective range of the cutting member can be.
    A further object of the invention is to dissipate the necessary for the cutting, supplied in the cutting area energy and the resulting heating of machine parts and the cutting impurities and gases on site again.
    This object is achieved by a method according to the features of patent claim 1 and by a device according to claim 7.
    It is possible to cut out the advantages of a laser cutting device, namely both meltable applications and non-meltable applications, and also to allow the advantages of the method and apparatus described in EP 1983 383 for simultaneous cutting at a plurality of embroidery sites.
    By the arrangement of the cutting device within a direction towards the embroidery base and the material layer applied thereto open space with the cutting member, in which the environment relative to a negative pressure can be generated, and brought to the application or the application to the cutting device can be, the usually only about 1/10-thick application layer to the opening of the room, which acts as a reference surface, create and, if a negative pressure is built up in this room, also suck on this and so on the one hand smooth and on the other to position accurately relative to the cutting device. At the same time due to a vacuum in the room when using a laser as a cutting member resulting vapors and / or cutting particles are sucked in place. In addition, the heat generated by cutting the cutting element is directly from the area of the substance, d. H. of the embroidery base and the application. Transfer of heat to other machine elements of the embroidery machine is reduced. This makes cutting better in continuous operation. Furthermore, the exact positioning of the material layer, i. the application in relation to the focal point of a laser beam or a heating tip, tenths of a millimeter can be achieved, which can be done on the one hand with a very low power and on the other hand, a minimum amount of harmful gases is generated. Another very significant advantage is that by sucking the application to the opening of the room, the application is easily lifted off the surface of the embroidery base and thus the necessary energy for cutting, which must be introduced into the application, not directly on the Stickgrund accumulates and can discolor or damage this at best. This is especially true when cutting applications with a laser that do not melt, but that have to be scorched, burned or vaporized for cutting. By lifting the application from the embroidery base can be dispensed with the insertion of a later consuming again washed out separation layer.
    Diode lasers are very small and can therefore be positioned in small lateral distances along the embroidery machine and can simultaneously cut a variety of distributed over the entire length of the embroidery machine figures.
    With an extended bearing surface in the plane of the focal point of the laser beam can be effected that the cutting of applications is easily possible even with embroidered workpieces, if on this soutache embroidery or other surface superior embroidery are present. Hooking or pushing aside embroidery elements is prevented by the enlarged support plate.
    On the one hand costs are avoided by reducing work steps compared to the known laser cutting and on the other hand, a burden of the embroidered fabric and embroidery by the washout. Furthermore, a distortion of the embroidery base and the application, as occurs in a single point during laser cutting, can be avoided. On the other hand, eliminates the cost of the release layer and the previous introduction of the release layer between the embroidery floor and the application. The method and devices according to the invention combine the advantages of laser cutting with the advantages of cutting with a heating tip. Both fusible and non-fusible applications can now be cut. It can be a variety of cutting devices arranged side by side on the embroidery machine and operated.
    Compared to the conventional laser cutting devices, the effort to avoid injury to the eyes of the operating personnel by the encapsulation of the laser beam in a room whose opening rests directly on the application, guaranteed. Furthermore, the suction of gases and impurities inevitably incurred when cutting plastic materials or natural materials, with much lower throughputs possible because the suction takes place directly at the point of origin of the impurities. The impurities can therefore not initially escape into the environment of the machine.
    The dimension of the individual cutting devices is so compact that at intervals of slightly more than 100 millimeters cutting devices on the embroidery machine can be arranged side by side. These distances are thus usually in the range of small or narrow reports of embroidery. This allows the simultaneous cutting out of many small or large figures that have been embroidered close together.
    Based on two embodiments, the invention will be explained in more detail.
    In the drawings:<Tb> FIG. 1 <SEP> a layout of an embroidery machine,<Tb> FIG. 2 <SEP> is a perspective view of a cutting device on an embroidery machine,<Tb> FIG. 3 <SEP> a vertical section through the embroidery machine at the height of a cutting device,<Tb> FIG. 4 <SEP> an enlarged vertical section through the cutting device,<Tb> FIG. 5 <SEP> a top view of the cutting device,<Tb> FIG. 6 <SEP> a vertical section through a further embodiment of the cutting device and<Tb> FIG. 7 <SEP> is a plan view of the cutting device according to FIG. 6.
    Reference numeral 1 denotes an embroidery machine, in particular a large embroidery machine with a plurality of up to 1100 held on needle carriers 4 needles 3, which are positioned in front of stitch holes 5 in a tap hole plate 7. Above the needles 3, substantially cubic formworks 21 are arranged, which schematically represent the cutting devices 9. To the cutting devices 9 lead inter alia a compressed air line 11 for scavenging air and the drive, power lines 13 for a cutting member 15, in the example shown a diode laser 27, and a suction line 17, which is also connected to the cutting device 9. The cutting device 9 is formed connectable to the embroidery machine 1 or along the embroidery machine 1 extending carriers (carrier not shown). The suction lines 17 to the cutting devices 9 are connected to a running along the embroidery machine 1 central exhaust 19. With a drive, not shown in detail, e.g. Pneumatic drive, a housing 39 in the cutting device 9, or can at least parts thereof, are led away in the direction of the throat plate 7 and from this. The supply of compressed air through the compressed air line 11 and with suction air for the central suction line 19, the power lines and control lines not shown are preferably carried out centrally on the embroidery machine. 1
    As can be seen in particular from FIGS. 1 and 2, the cutting devices 9 can be arranged side by side over four or five needles 3 or drills or drill holder 6. In other words, consequently, with each cutting device 9, a multiplicity of smallest work areas, which are located close to each other, can be machined or cut out, without a readjustment of the cutting device 1 being necessary, as in the prior art of laser technology.
    Subsequently, the structure of a cutting device 1 will be explained in more detail with reference to FIGS. 3 to 5 of the first embodiment.
    Each cutter 9 comprises a box-shaped casing 21, e.g. made of metal, which is connectable to the embroidery machine 1 (connection with embroidery machine 1 not shown). In the casing 21 is on two guide columns 23, which represent a connection to the embroidery machine, a housing 39 and therein a laser module 25 with, for example, four diode lasers 27 motor or pneumatically guided longitudinally displaceable in the Z direction. The drive members for the displacement are not shown. Preferably, but not exclusively, the laser is diode laser 27 with 435nm wavelength, which are optically interconnected. On the left side of the diode laser 27 in Fig. 3, a suitable optical lens 29 is used as a focusing lens. The lens 29 focuses the laser beams 51 of the diode laser 27 at a focal point 49. The optical lens 29 is adjoined by, for example, a conical channel 31, into which the compressed air line 11 discharges and introduces purging air into the channel 31 in order to prevent contamination, i.a. prevent the lens 29. By means of this lens 29, the focal point 49 can be set exactly in the Z direction. The front part of the jacket 33 of the conical channel 31 lies within a space 35 of the housing 39. One or more suction ducts 17 open into this space 35. The left-hand end of the space 35 is formed as an orifice 41 in the housing 39. The forward end of the conical channel 31 located in the space 35 is preferably axially spaced from the opening 41, i. to a reference plane E, which lies above the opening 41.
    The described spaced position of the channel 31 creates an annular zone 43 between the end of the conical channel 31 and the opening 41st
    About this zone 43, the air blown through the compressed air line 11 into the conical channel 31 in the suctioned air through the suction 17 slightly under negative pressure space 35 can flow. At the mouth or opening 41 of the housing 39 air is thus sucked 35 by the negative pressure in the space.
    In an advantageous embodiment, in comparison to the air blown into the conical channel 31, a multiple, e.g. a sixfold extracted in air from the space 35, as supplied. The air flow generated by the negative pressure in the space 35 in the housing 39 pulls on the opening 41 when approaching the housing 39 to an embroidered on the gate of the embroidery machine 1 embroidery bottom 45 with an applied thereto by an embroidery material layer 47, the latter to the opening 41 on the housing 39 on. As a result, the material layer 47 lifts something off the embroidery base 45 in the region of the opening 41. This lifting results in an air-filled gap 48 between the material layer 47 and the underlying embroidery bottom 45. This gap 48 causes the focal point 49 of a laser beam 51, which comes to rest in the material layer 47, probably to separate the material layer 47, and the underlying embroidery bottom 45 is not damaged.
    The material layer 47 to be cut is guided past the opening 41 by the x-y movements of the embroidery bottom 45 and the material layer 47 lying thereon, which are carried by the gate of the embroidery machine 1. In this case, the material layer 47 is always lifted off the embroidery base 45 only just in the region of the focal point 49 of the laser beam 51 at the opening 41. The outer edge 42 of the opening 41 or a bead surrounding the opening 41 (not shown) forms the reference plane E (see FIG. 5), in which the focal point 49 of the laser beam 51 is located. Consequently, the material layer 47 is in the region of the focal point 49, which is adjustable with the lens 29 exactly on the easily held at the opening 41 Plagspannt held material layer 47.
    The suction of air from the atmosphere through the embroidery bottom 45 and through the material layer 47 also causes a cooling of the embroidery bottom 45 and there are all caused by the combustion or scorching operation of the laser beam 51 gases and particles sucked there. Contamination of the embroidery and the surrounding air or parts of the embroidery machine 1 can be optimally prevented.
    Furthermore, the laser beam 51 or its harmful to the human eye rays are optimally shielded from the environment, since the housing 39 comes to lie with its opening 41 very close to the needle plate 7 and thereby virtually no harmful rays through can exit the embroidery base 45 to the outside.
    It can be seen that the cutting of the material layer 47 can be cut both without suction to the opening 41, as well as with suction. The suction increases the certainty that the material layer 47 lies flat against the opening 41 and thus in the reference plane in which the focal point 49 is located.
    Alternatively to the laser beam 51 generating diodes as a cutting member 15 may be used in the conical channel 31, a heating tip, the tip end of the opening 41 at most by the thickness of the material layer to be cut 47 projects beyond. The heating tip thereby separates the material layer 47 without touching and thus damaging the embossed bottom 45 located at a distance from the material layer 47 (cutting tip not shown).
    In the second embodiment of the invention according to FIGS. 6 and 7, the front end of the housing 39 is not frusto-conical towards the opening 41, but the opening 41 comes to rest in a plane guide and support plate 53. The support area of the cutting device 9 on the material layer 47, which is substantially enlarged by the guide plate 53, causes, as already mentioned, that very uneven surfaces, which are applied to the embroidery base 45 by the embroidery, can be guided. Preferably, the edge regions or edges 55 of the support plate 53 are arranged to extend at an acute angle to the plate surface.
    A miniaturized version of the cutting device 9 Hesse also attach directly to a drill carrier 6 or the needle carrier 4 (both shown schematically in Fig. 3) and with this lead to the material layer 45 before and from this back to a rest position.
    Legend of the reference numbers
    [0035]<Tb> 1 <September> embroidery machine<Tb> 3 <September> needles<Tb> 4 <September> needle carrier<Tb> 5 <September> tap hole<Tb> 6 <September> drill holder<Tb> 7 <September> needle plate<Tb> 9 <September> cutter<Tb> 11 <September> compressed air line<Tb> 13 <September> power line<Tb> 15 <September> cutting member<Tb> 17 <September> suction<tb> 19 <SEP> central suction line<Tb> 21 <September> Planking<Tb> 23 <September> guide column<Tb> 25 <September> Laser Module<Tb> 27 <September> Diode<tb> 29 <SEP> optical lens<tb> 31 <SEP> conical channel<tb> 33 <SEP> Coat of 31<Tb> 35 <September> Room<Tb> 39 <September> housing<Tb> 40 <September> bead<tb> 41 <SEP> opening of 37<Tb> 42 <September> outer edge<Tb> 43 <September> Zone<Tb> 45 <September> Stick Floor'Tb> 47 <September> material layer<Tb> 48 <September> space<Tb> 49 <September> Focus<Tb> <September> laser<tb> 53 <SEP> Guide and support plate<tb> 55 <SEP> edges at 53
    权利要求:
    Claims (15)
    [1]
    A method of applying surface pieces of desired shape to an embroidery bottom (45) by means of an embroidery machine or sewing machine (1), wherein at least one layer of material (47) is placed over the embroidery bottom (45) and controlled by the program of the embroidery machine or sewing machine (1) a relative movement between a on the embroidery or sewing machine (1) arranged cutting device (9) with a cutting member (15) and the material layer (47) is generated and thereby with the cutting member (15) a piece of material from the material layer (47), characterized in that- That the cutting member (15) together with a housing (39), in which the cutting member (15) is inserted, in the direction of the material layer (47) and / or the material layer (47) and the embroidery bottom (45) to the housing (39) is advanced until the front of the housing (39) touches the material layer (47),- That the material layer (47) at the front of the housing (39), which forms a reference plane E, smoothly applied,- That by a in the front of the housing (39) formed in the opening (41) in the housing (39), the cutting member (15) penetrates into the material layer (47) and- That the material layer (47) is cut by the cutting member (15).
    [2]
    2. The method according to claim 1, characterized in that the material layer (47) on a the opening (41) wholly or partially surrounding bead (40) which forms the reference plane E, is positioned in the reference plane E.
    [3]
    3. The method according to any one of claims 1 or 2, characterized in that in the region of the opening (41) on the housing (39) by suction of air within the housing (39) is constructed with respect to the environment lower pressure through which the the material (47) is sucked into the opening (41) of the housing (39) in the opening (41) into the housing (39).
    [4]
    4. The method according to any one of claims 1 to 3, characterized in that for cutting the material layer (47) through the housing (39), a laser beam (51) is guided as a cutting member (15) whose focal point in the region of the opening (41) , which forms the reference plane E, and at which the material layer (47) abuts the opening (41), is focused and there cuts the material layer (47) by melting, burning, evaporation or the like.
    [5]
    5. The method according to any one of claims 1 to 3, characterized in that the cutting device (9) comprises a heatable tip, which is arranged in the housing (39), and the top of the reference plane E over the opening (41) by the amount of Penetrates the thickness of the material layer (47) and cuts the material layer (47) of synthetic fibers.
    [6]
    6. The method according to any one of claims 3 to 5, characterized in that the material layer (47) is lifted when sucking on the opening (41) of the cutting device (9) from the embroidery base (45) and thereby the cutting member (15) when cutting the Material layer (47) the touch bottom (45) can not touch and damage.
    [7]
    7. Device for an embroidery or sewing machine (1), with which on the embroidery bottom (45) area pieces of material on the embroidery bottom (45) applied material layer (47), controlled by the program of the embroidery machine or mower (1) cut out can be, comprising a cutting device (9) with a cutting member (15), which cutting device (9) is fastened attached to the embroidery machine (1) and from a rest position to a working position on the material layer (47) on the embroidery bottom (45) and is arranged movable back or wherein the material layer (47) to the cutting device (9) can be introduced, characterized in that the cutting member (15) in a housing (39) in the cutting device (9) is arranged on the housing (39 ) is provided in the form of an opening (41), wherein the opening (41) in the working position with the material layer (47) is brought into contact, such that the Cutting member (15) in the region of the opening (41) into the material layer (47) can be penetrated.
    [8]
    8. The device according to claim 7, characterized in that the opening (41) by a bead (40) is completely or partially enclosed.
    [9]
    9. Device according to one of claims 7 or 8, characterized in that in the housing (39) in the cutting device (1), a suction line (17) opens, with the air through the opening (41) is sucked in and the material layer (47 ), which is in working position in front of the opening (41), to the opening (41) is sucked.
    [10]
    10. Device according to one of claims 7 to 9, characterized in that as a cutting member (15) in the housing (39) a heating tip or a laser module (25) for generating a laser beam (51) is arranged, the hot tip or its focal point (49) passes the plane E at the opening (41) penetrating.
    [11]
    11. Device according to one of claims 9 or 10, characterized in that in the housing (39) opens a blast air line (11) to form an air flow, with which dirt particles and / or gaseous impurities from the region of the cutting member (15) wegführbar and by means of the suction line (17) are dischargeable.
    [12]
    12. The device according to claim 11, characterized in that the suction line (17) opens into an annular zone (43) in the housing (39), which is bounded on the inside by a jacket (33), in which the laser beam (51) guided or the heating tip is arranged.
    [13]
    13. The apparatus according to claim 12, characterized in that the flow side front end of the jacket (33) at a distance from the opening (41) of the housing (39) ends, such that in the jacket (33) surrounded central region scavenging air which with the through the sucked material layer (47) and passing through the opening (41) sucked air through the annular zone (43) in front of the opening (41) deflects with the extracted air and with the emitted substances in the suction line (17) arrives.
    [14]
    14. The device according to claim 7, characterized in that the opening (41) in a the opening (41) laterally extending support plate (53) is arranged, whose lateral edges are formed running at an acute angle to the plate surface.
    [15]
    15. Device according to one of claims 10 to 14, characterized in that a diode laser (27) in the housing (39) is used as the laser, which diode laser (27) operates at a wavelength of 435nm.
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    同族专利:
    公开号 | 公开日
    TW201636473A|2016-10-16|
    WO2016113038A1|2016-07-21|
    EP3245323B1|2020-03-04|
    CN107223170A|2017-09-29|
    KR20170104569A|2017-09-15|
    EP3245323A1|2017-11-22|
    CH710610A1|2016-07-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    CH714377A1|2017-11-30|2019-05-31|Laesser Ag|Method and device for applying planar applications on an embroidery base by means of an embroidery machine.|JPH0538590A|1991-08-05|1993-02-19|Matsushita Electric Ind Co Ltd|Laser beam machine|
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    DE102005050482B3|2005-10-21|2007-01-11|Saurer Hamel Ag|Continuously embroidering and cutting materials, especially appliques, in embroidering machine with laser cutting head, with cutting unit operated during frame shut-down and/or material advancement stage|
    CH700701B1|2007-04-20|2010-10-15|Laesser Ag|Method and apparatus for applying flat pieces of material, as well as embroidery machine having a plurality of such devices.|
    CN101363177B|2008-07-21|2012-02-29|东阳市双燕设备有限公司|Laser cutting device of embroidery machine and laser embroidery integrated machine thereof|
    DE102011009677B4|2010-10-18|2015-01-08|Technische Universität Dresden|Device and method for cutting the outer edge contour on three-dimensional textiles with laser radiation|
    JP2012228370A|2011-04-26|2012-11-22|Tokai Ind Sewing Mach Co Ltd|Heat cutting device for embroidery sewing machine|
    DE202011103579U1|2011-07-21|2011-11-10|Oerlikon Saurer Arbon Ag|Embroidery machine with replaceable cutting tool|CN111020906A|2019-11-25|2020-04-17|绍兴柯桥区归零纺织品有限公司|Breathable laser embroidery fabric and manufacturing method thereof|
    法律状态:
    2018-03-15| PCOW| Change of address of patent owner(s)|Free format text: NEW ADDRESS: INDUSTRIESTRASSE 1, 9444 DIEPOLDSAU (DE) |
    2021-10-15| AZW| Rejection (application)|
    优先权:
    申请号 | 申请日 | 专利标题
    CH00046/15A|CH710610A1|2015-01-14|2015-01-14|Method in order to apply by means of an embroidery machine or the sewing machine surface material pieces of desired shape on a embroidery base and corresponding device for an embroidery sewing machine, or|KR1020177022485A| KR20170104569A|2015-01-14|2015-12-03|A method for applying flat material pieces of a desired shape to an embroidery base by a knitting machine or a sewing machine and a knitting machine or a sewing machine for cutting out a flat material piece such as a figure made of another material applied to an embroidery base on an embroidery base|
    CN201580073571.0A| CN107223170A|2015-01-14|2015-12-03|The method for sewing the cloth of plane on embroidery plate with required shape by embroidery machine or sewing machine, and for embroidery machine or the device of sewing machine, it is by the cloth for being positioned over embroidery plate with being cut out from another in the identical patterns of the cloth of embroidery bottom sewing|
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