EP3068937B1 - Mehrnadelsteppmaschine und entsprechendes steppverfahren - Google Patents

Mehrnadelsteppmaschine und entsprechendes steppverfahren Download PDF

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Publication number
EP3068937B1
EP3068937B1 EP14815026.1A EP14815026A EP3068937B1 EP 3068937 B1 EP3068937 B1 EP 3068937B1 EP 14815026 A EP14815026 A EP 14815026A EP 3068937 B1 EP3068937 B1 EP 3068937B1
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EP
European Patent Office
Prior art keywords
platform
stitching
stitching unit
members
needles
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EP14815026.1A
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English (en)
French (fr)
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EP3068937A1 (de
Inventor
Alberto Landoni
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Individual
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Individual
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Priority claimed from IT001892A external-priority patent/ITMI20131892A1/it
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Publication of EP3068937A1 publication Critical patent/EP3068937A1/de
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    • DTEXTILES; PAPER
    • D05SEWING; EMBROIDERING; TUFTING
    • D05BSEWING
    • D05B11/00Machines for sewing quilts or mattresses
    • DTEXTILES; PAPER
    • D05SEWING; EMBROIDERING; TUFTING
    • D05BSEWING
    • D05B69/00Driving-gear; Control devices
    • D05B69/02Mechanical drives
    • DTEXTILES; PAPER
    • D05SEWING; EMBROIDERING; TUFTING
    • D05CEMBROIDERING; TUFTING
    • D05C3/00General types of embroidering machines
    • D05C3/02General types of embroidering machines with vertical needles

Definitions

  • the present invention concerns a multi-needle quilting machine and a method for quilting textile products or manufactured articles in general, for example consisting of an upper layer, a possible lower layer and an intermediate layer of padding, to make a piece of cloth or a panel of the textile type, and also manufactured articles obtained with said method.
  • the machine can therefore be the type used to make stitches of the desired type on fabrics, bands, panels for mattresses, quilts or textile products, for example used to make a mattress, quilts, clothing, garments or other similar or comparable manufactured article.
  • the quilting machine and method allow to make any type of pattern, also very sophisticated such as cording, similar to embroidery and defined by stitches located even at a very close reciprocal distance.
  • Quilting machines can operate with different types of stitches depending on the equipment provided.
  • Multi-needle quilting machines comprising one or more rows of needles, also called arrays of needles, which, based on a specific control and command program, make stitches of various forms and characteristics, obtaining the most varied patterns.
  • each row is mounted aligned along a determinate longitudinal axis disposed transverse to the normal direction of feed of the materials to be quilted.
  • each row of needles is mounted on a needle-carrier support bar that develops along said longitudinal axis and that is driven with a vertical alternate motion with respect to the lying plane of the material to be worked, in order to make the stitches according to the desired patterns and forms.
  • Known quilting machines generally comprise a support base which the support structures of the one or more rows of needles are installed on or are part of, in a fixed position.
  • the needles can be detachably mounted on the row of needles, and can be made activable or non-activable according to the technology described in EP-B-0.394.601 .
  • the support base is provided with a work plane on which, during use, the materials to be subjected to the typical operations of a quilting machine are moved.
  • a unit for feeding the materials to be quilted cooperates upstream with the support base, and comprises one or more bobbins in the case of several materials to be quilted in an associated manner. Downstream a unit is provided to collect the worked material.
  • the material to be quilted is normally moved on the work plane in both a parallel and a transverse direction with respect to the longitudinal positioning development of the needles.
  • the movement of the materials to be worked, in the direction parallel to the longitudinal positioning axis of the needles, is normally obtained by moving the bobbins on which the materials to be quilted are wound.
  • the double movement of the material to be quilted on the work plane does not allow to simultaneously make patterns elaborated according to an orientation that is parallel and transverse to the direction of feed of the material to be quilted.
  • the outer casing of the mattress comprises two quilted panels joined by a quilted perimeter band.
  • Perimeter bands like quilted panels, can be of different heights, different patterns and different padding.
  • the current technology is to cut the fabrics and padding to a predefined width and then roll them onto bobbins to be fed to the quilting machine.
  • the precut materials wound on bobbins are normally quilted by single machines that quilt one band at a time, therefore they are machines used for this purpose only and not suitable for quilting panels for mattresses.
  • the layers and padding fed on each occasion normally have a width substantially equal to that of the finished product to be obtained.
  • the support body is in turn installed on a mobile platform by means of first guides, so as to allow a translation of the support body with respect to the mobile platform in a direction substantially parallel to the direction of positioning of the needles.
  • the mobile platform is installed sliding on a fixed support base by means of second guides located orthogonal to the first guides. In this way it is possible to allow a translation of the mobile platform in a direction substantially orthogonal to the direction of positioning of the needles.
  • the machine described in US-A-2011/290166 is particularly bulky and has a support base that has shape and sizes suitable to receive a fabric with a predetermined unit of size. This greatly limits the flexibility of the machine, rendering it suitable for quilting articles of sizes limited to the size of the machine.
  • a solution is also known, described in JP-A-2002.028388 , of an embroidery machine that comprises a first support platform and a second support platform adjacent to the first support platform.
  • a plurality of stitching heads are installed on the first support platform, which are adjacent to each other along a predetermined first longitudinal axis.
  • the second support platform is also provided with a plurality of stitching heads adjacent to each other and aligned along a second longitudinal axis, parallel to the first longitudinal axis.
  • Each stitching head is provided with its own independent lower needles and stitching members.
  • Both the first support platform and the second support platform are installed in a selectively translatable manner, independently of each other, in a direction substantially transverse to that of the first longitudinal axis and the second longitudinal axis.
  • One purpose of the present invention is to obtain a multi-needle quilting machine that allows to obtain patterns with great precision and definition.
  • Another purpose of the present invention is to obtain a multi-needle quilting machine that allows to carry out a plurality of patterns according to rectilinear configurations or with very complex motifs, with desired deviations of the pattern.
  • Another purpose is to perfect a multi-needle quilting method that allows to obtain a plurality of patterns according to rectilinear configurations or with very varied motifs, with desired deviations of the pattern.
  • the Applicant has devised, tested and embodied the present invention to overcome the shortcomings of the state of the art and to obtain these and other purposes and advantages.
  • a multi-needle quilting machine comprises at least a base on which at least a stitching unit is disposed, provided with a plurality of upper stitching members, or rows of needles, and a plurality coordinated of lower stitching members suitable to generate on each occasion the desired stitch (chain stitch, lockstitch, satin stitch etc.).
  • At least one stitching unit there may be one or more rows of needles with the coordinated lower stitching members.
  • row of needles we mean all the needles that are installed on a common support body, for example a bar, which are disposed substantially aligned along a predefined longitudinal axis and which are selectively actuated by the same actuation device.
  • the needles are positioned substantially aligned along a longitudinal axis and, in the case of several rows of needles, they are normally even if not necessarily parallel to each other.
  • Each row of needles can extend substantially for the whole longitudinal extension of the stitching unit, to define the operating amplitude of the machine according to the present invention.
  • At least one platform is provided, disposed on the base and selectively translatable, with respect to the base, in a direction of movement substantially orthogonal to the direction of feed of the material to be quilted.
  • two or more platforms may be provided, for example located adjacent to each other.
  • the material is fed only in one direction, which is orthogonal to the longitudinal positioning axis of the needles, which eliminates problems in the fabric and in the stitches such as deformations and distorted patterns.
  • the stitching units can both be kept stationary with respect to the base.
  • the operating modes can be obtained by clamping, on each occasion, one or the other stitching unit to the respective platform or with respect to the base.
  • the quilting machine according to the present invention has great operating flexibility, and can be used for different specific applications such as quilting and also for simultaneously making a plurality of bands for mattresses starting from a single material, and making panels or quilts with very sophisticated patterns and with a wide surface development.
  • the stitching units stationary with respect to the base will make straight stitches, parallel to the feed of the material.
  • the stitching units that move in a controlled and desired manner, in coordination with the feed of the material, will make the desired patterns in the desired form and location.
  • cutting devices configured for example as a blade, are associated with the needles that, during use, operate near what will become the longitudinal edges of the bands, in order to cut the material.
  • respective needles when working bands, are positioned near the lateral edges of each band and, in the median position between two nearby needles, a blade.
  • the blade When two needles descend toward the material in order to make the stitch, the blade also descends and, descending together with the needles, can make a clean, linear cut, leaving a small edge of material at the side of every needle, since the needles that are inserted into the material clamp it and hold the fabric, allowing the blade to make the cut in a clean, precise and linear way.
  • Figs. 1a , 1b , 1c and 1d each represent schematically a quilting machine 10 comprising a base 23, at least a first platform 22, a first stitching unit 80, in this case with only one row 42 of needles 12, and a second stitching unit 81, in this case with two rows 13 of needles 12.
  • the needles 12 are disposed substantially aligned along a respective longitudinal axis X located substantially orthogonal to a direction of feed A in which the material to be quilted 17 is fed.
  • auxiliary upper stitching members 42 and respectively upper stitching members 13 cooperate in use with corresponding auxiliary lower stitching members 43 and respectively lower stitching members 15 in order to make the stitches.
  • the auxiliary lower stitching members 43 and the lower stitching members 15 can comprise either a shuttle, a rotary crochet, a mobile hook (the latter shown for example in figs. 1a , 1b , 1c and 1d ).
  • the upper stitching members 13 and the lower stitching members 15 of the second stitching unit 80 and the auxiliary upper stitching members 42 and the auxiliary lower stitching members 43 of the second stitching unit 81 extend longitudinally for the entire length of the respective stitching unit 80, 81, defining the operating width of the machine 10.
  • the row 42 of needles 12 cooperates with a cutting device 55, comprising for example a blade 71, to make the cut, for example into bands, of the material 17 that is quilted.
  • the blade 71 makes the cut on each occasion along the cutting line 75 while the needles 12 of at least one of the stitching units, in this case the first stitching unit 80, make the stitches 74.
  • the first stitching unit 80 in order to make the stitches 74 straight, the first stitching unit 80 must be stationary with respect to the base 23 while the material 17 is fed only in the direction of feed A, in both one direction and the other, and does not move laterally with respect to the base 23, that is, it does not move in a direction orthogonal to the direction of feed A.
  • the first platform 22 operates on guide members 24 also associated to the base 23, for example of the self-clamping type, and is mobile transversely to the direction of feed A of the material 17, in a desired and controlled manner.
  • first platform 22 can be moved or clamped to the base 23 depending on the particular working requirements.
  • the second stitching unit 81 is solid with the first platform 22, whereas the first stitching unit 80 is stationary or kept stationary with respect to the base 23.
  • the second stitching unit 81 is installed on the first platform 22, which slides with respect to the base 23, whereas the first stitching unit 80 is installed on a second platform 31.
  • the second platform 31 is in turn installed on the first platform 22, in sliding manner, in a direction substantially orthogonal to the direction of feed A.
  • Guide members 33 are associated to the first platform 22 and the second platform 31, configured to allow their reciprocal sliding.
  • the guide members 33 are the self-clamping type, that is, they are configured to selectively constrain the reciprocal position of the second platform 31 with the first platform 22, so as to make them solid with each other.
  • This operating condition allows for example to quilt panels with a large surface extension both with the first stitching unit 80 and with the second stitching unit 81.
  • the second platform 31 is provided with a clamping device 85, configured to selectively constrain the position of the second platform 31 with respect to the base 23 while still allowing the movement of the first platform 22 with respect to the base 23.
  • the guide members 33 interposed between the first platform 22 and the second platform 31 are released, allowing the first platform 22 to slide and leaving the second platform 31 stationary with respect to the base 23.
  • the clamping device 85 can comprise at least one of either a pin, an actuator, a constraint member, a housing seating, or a possible combination of these.
  • the clamping device 85 comprises an abutment element 87 attached to the first stitching unit 80 and an actuator 86 attached to the base 23 and provided with an interference end suitable to cooperate with the abutment element 87 and determine the stable positioning of the first stitching unit 80 with the base 23.
  • the first stitching unit 80 comprises its own support frame 82 mounted on the second platform 31, and mobile therewith.
  • auxiliary upper stitching members 42 and auxiliary lower stitching members 43 are associated with the support frame 82.
  • the machine 10 can comprise positioning members 49, or constraint devices 59, for example with sliders and guides, which allow to maintain the correct reciprocal position of the two stitching units 80, 81.
  • the positioning members and the constraint devices can be identical to those that will be described hereafter with regard to the machine in fig. la.
  • the positioning members and respectively the constraint devices are configured to keep the auxiliary upper stitching members 42 and the auxiliary lower stitching members 43 in a solid position with the second platform 31, even though they are themselves connected to the upper 13 and lower 15 stitching members of the second stitching unit 81, to receive motion from the latter.
  • the support frame 82 of the first stitching unit 80 can also be provided with its own support plane 85 on which the material 17 is rested.
  • the support plane 85 is also provided with through holes 38 to allow the passage during use of the needles 12 and blades 71.
  • respective movement devices can be associated with the second platform 31, configured to move the second platform 31 sliding on the guide members 33, independently of the first platform 22 in a direction orthogonal to the direction of feed A of the material 17.
  • both the first platform 22 and the second platform 31 are installed on the base 23, sliding in a direction substantially orthogonal to the direction of feed A, with respective guide members 24 and respectively 33.
  • Respective movement members 27 and 83 are associated with the first platform 22 and second platform 31, each of which configured to determine an independent movement on the base 23 of the first platform 22 with respect to the second platform 31.
  • This solution allows to move the first stitching unit 80 independently with respect to the second stitching unit 81 in a direction substantially orthogonal to the direction of feed A of the material 17.
  • respective movement members 83 are associated with the second platform 31, configured to move the second platform 31 independently from, and with respect to the first platform 22, transversely to the direction of feed A.
  • the movement means 83 can comprise a worm screw mechanism 84, able to be selectively actuated by drive members, not shown in the drawings and easily provided by a person of skill.
  • the auxiliary upper stitching members 42 can be connected, as will be described hereafter, to the upper stitching members 13 to receive motion from the latter and to achieve a synchronous stitching action of the upper stitching members 13 and the auxiliary upper stitching members 42.
  • the upper stitching members 13 and the lower stitching members 15 are actuated by a single drive member, which determines an actuation also of the auxiliary upper stitching members 42 and the auxiliary lower stitching members 43.
  • the first stitching unit 80 and the second stitching unit 81 are operatively independent of each other and are each provided with their own independent activation members configured to activate the auxiliary upper stitching members 42 and the auxiliary lower stitching members 43 independently from the upper stitching members 13 and the lower stitching members 15.
  • the guide members 24 and 33 can be the self-clamping type to determine a selective constraint of the positioning of the first platform 22 and second platform 31 with respect to the base 23.
  • the movement members 27 of the first platform 22 and the actuation members 83 of the second platform 31 are selectively commandable, for example by a command and control unit, to define predefined movements of the first platform 22 and second platform 31.
  • a synchronized movement of the first platform 22 and the second platform 31 may be provided.
  • the first platform 22 is associated with movement members 27 ( fig. 2 ) governed for example by a processor, and are configured to move the first platform 22 in the guide members 24 and transversely to the direction of feed A.
  • the multi-needle quilting machine also comprises an introduction unit 10a to introduce at least a material 17 in the direction of feed A, the first stitching unit 80 and the second stitching unit 81, configured to make stitches on the material 17 and an exit unit, or for the collection of the worked material 17 (not shown in the drawings).
  • the material 17 can comprise a first layer 18, a second layer 19 and a third layer 20, or layer of padding interposed between the first 18 and second layer 19 to define a so-called "quilted sandwich".
  • a different configuration of the material 17 is not excluded, for example a single cloth, or two or more layers.
  • the introduction unit 10a and the exit unit for the material 17 are associated in a fixed position on the support base 23, and the first stitching unit 80 and the second stitching unit 81 are interposed between them.
  • the introduction unit 10a can comprise at least a support device 34 configured to support, possibly wound on a bobbin 39, at least one layer that will constitute the material 17 to be obtained.
  • the introduction unit 10a can comprise a plurality of support devices 34, each of which is configured to support one of the layers that will constitute the material 17.
  • introduction unit 10a is configured to feed simultaneously and to superimpose with respect to each other the layers of material 17 before they are quilted.
  • the introduction unit 10a comprises two support devices 34 configured to each support a bobbin 39 on which respective layers to be quilted are wound, overlapping each other.
  • Each support device 34 can comprise, for example, a rotary shaft 35 to support a respective bobbin 39.
  • Drive members, braking devices, or other devices to control the tension of the material 17 that is created between the introduction unit 10a and the exit unit can be associated with the rotary shaft 35.
  • the activation of these devices can be coordinated with the activation of the exit unit or with possible tensioning devices.
  • the second stitching unit 81 comprises upper stitching members 13, lower stitching members 15 and a support plane 16, interposed between the upper stitching members 13 and the lower stitching members 15, and configured to support the material 17 during quilting.
  • the upper stitching members 13 and the lower stitching members 15 are located aligned in a determinate longitudinal axis X ( fig. 5 ).
  • the upper stitching members 13 ( figs. 1a , 1b and 1c ) comprise at least a first support bar 11, in this case two first support bars 11, parallel to each other, on each of which are mounted, aligned in the longitudinal axis X ( fig. 5 ), stitching needles 12 cooperating with the mating lower stitching members 15 ( figs. 1a , 1b and 1c ).
  • the first support bars 11 are driven by actuation members 14, substantially known and configured to confer alternate motion on the first support bars 11 and allow the stitches to be made.
  • the actuation members 14 can comprise at least one of either rotary shafts, articulated mechanisms, connecting rods, crank handles, drive members, command rods, or a possible combination thereof.
  • the first support bars 11 are associated with movement arms 41 equipped with ascending/descending alternate motion.
  • the actuation members 14 can be mounted on a support frame 21 ( fig. 2 ) provided to support and allow the movement of the first support bars 11.
  • the lower stitching members 15 ( figs. 1a , 1b , 1c and 1d ) are installed under the support plane 16 and each of them cooperates during use with a needle 12.
  • the support plane 16 can be equipped with through holes 38 ( figs. 1a , 1b , 1c and 1d ) through which, during use, the needles 12 pass in order to interact with the lower stitching members 15.
  • the material 17 is moved only in the direction of feed A which is transverse, in this case orthogonal, to the longitudinal positioning axis X of the first support bar 11 of the needles 12, whereas the translation of the first platform 22 allows to make quilting patterns according to predefined configurations that can extend over the whole surface development of the material 17.
  • the combination of the movement of the first platform 22 in the direction of movement D coordinated with the movement of the material 17 in the direction of feed A allowsto position the needles 12 in any spatial position.
  • the introduction unit 10a and the exit unit of the composite materials to be quilted 17 are kept substantially stationary.
  • the guide members 24 comprise longitudinal guides 25 attached to the base 23 and sliders 26 attached to the first platform 22 and configured to guide the movement of the latter on the base 23.
  • the movement members 27 can comprise at least one of either a drive member, an hydraulic actuator, an electric actuator, a rack mechanism, a worm screw mechanism, motion transmission members, reducer members or possible combinations thereof.
  • the movement members 27 comprise a worm screw mechanism 28 provided with a worm screw 29 attached to the base 23 and a mother screw 30 attached to the first platform 22 and on which the worm screw 29 screws.
  • the worm screw 29 is connected by transmission members (not visible in the drawings) to a motor 32.
  • the worm screw 29 is made to rotate, determining the translation of the first platform 22 in the direction of movement D.
  • clamping means 40 are associated with the auxiliary upper stitching members 42 and the auxiliary lower stitching members 43, and are configured to clamp the movement of the auxiliary upper stitching members 42 and the auxiliary lower stitching members 43 in a direction parallel to the longitudinal axis X.
  • the clamping means 40 can also be configured to determine a reciprocal positioning of the first stitching unit 80 and the second stitching unit 81, for example in relation to a specific quilting program provided, and in accordance with the reciprocal movements of the first platform 22 and second platform 31.
  • the auxiliary upper stitching members 42 comprise at least a second support bar 45 configured to support in turn a plurality of needles 12 aligned in an axis parallel to the longitudinal axis X.
  • the auxiliary upper stitching members 42 are connected to the actuation members 14.
  • the actuation members 14 are suitable both to actuate the upper stitching members 13 and also the auxiliary upper stitching members 42.
  • the second support bar 45 of the auxiliary upper stitching members 42 is also activated with alternate motion so as to make the stitch.
  • the auxiliary upper stitching members 42 comprise a connection body 46 that connects during use with the upper stitching members 13.
  • the second support bar 45 is in turn mounted on the connection body 46.
  • connection body 46 is mounted on the movement arms 41 of the upper stitching members 42.
  • positioning members 47 are also connected to the second support bar 45, and are provided to constrain the movement of the auxiliary upper stitching members 42 in a direction parallel to the longitudinal axis X.
  • the positioning members 47 in this case perform the function of the clamping means 40 as above.
  • the auxiliary upper stitching members 42 while the upper 13 and lower 15 stitching members make stitches as they move in the direction of movement D, the auxiliary upper stitching members 42, remaining constrained in the direction of movement D, can make substantially rectilinear stitches in a direction parallel to the direction of feed A.
  • This configuration allows to make quilted composite materials with both rectilinear stitches parallel to the direction of feed A and also stitches transverse to this direction, which will be automatically cut with a desired width so as to obtain bands for mattresses.
  • the positioning members 47 comprise guide devices 48 configured to guide the sliding of the second support bar 45 when the first platform 22 is moved in the direction of movement D in order to keep it in a fixed position with respect to the longitudinal axis X.
  • the guide devices 48 comprise sliders 49 mounted on the connection body 46 and a guide 50 connected to at least one movement arm 41 on which the sliders 49 are slidingly mounted.
  • the positioning members 47 can also comprise abutment elements 51 mounted on at least one of the ends of the second support bar 45 of the auxiliary upper stitching members 42.
  • the abutment elements 51 can comprise cylindrical bodies 52, for example bearings, mounted idle on the opposite ends of the second support bar 45.
  • the positioning members 47 also comprise containing elements 53 installed in a fixed position with respect to the base 23.
  • the containing elements 53 are configured to contact the abutment elements 51 during use and to constrain the movement of the second support bar 45 in the direction parallel to the longitudinal axis X.
  • the containing elements 53 can comprise a pair of plates, uprights or brackets, mounted at opposite ends on the base 23.
  • activation/de-activation members 54 can be associated with the auxiliary upper stitching members 42, and are configured to selectively activate/de-activate the auxiliary upper stitching members 42.
  • the activation/de-activation members 54 can comprise electric, pneumatic, hydraulic actuators, or mechanical kinematisms, or similar or comparable members suitable for the purpose.
  • the activation/deactivation members 54 can be configured to move the auxiliary upper stitching members 42 vertically, and to bring them close to or distance them from the support plane 16 in order to take them to an active condition of cooperation with the auxiliary lower stitching members 43 or to a non-active condition.
  • the auxiliary lower stitching members 43 can be selectively activated by actuation devices 56.
  • the actuation devices 56 comprise a transmission shaft 57, selectively rotatable around its axis of rotation with alternate motion.
  • the auxiliary lower stitching members 43 are mounted on the transmission shaft 57.
  • the transmission shaft 57 is connected, for example by means of a ribbed shaft 58, to drive members (not shown in the drawings) mounted on the first platform 22, provided to actuate the alternate movement of the transmission shaft 57.
  • constraint devices 59 are associated with the actuation devices 56, and are provided to constrain the position of the auxiliary lower stitching members 43 along the longitudinal axis X.
  • the constraint members 59 in this case perform the function of the clamping means 40 with regard to the auxiliary lower stitching members 43.
  • the constraint devices 59 comprise a support bracket 60 mounted in a fixed position with respect to the base 23, for example attached to the support structure of the introduction unit 10a.
  • the constraint devices 59 can comprise clamping elements 61 mounted in a fixed position on the transmission shaft 57, acting against the support bracket 60 and configured to constrain the position of the transmission shaft 57 in a direction parallel to the longitudinal axis X.
  • the transmission shaft 57 is actuated with alternate motion to make the auxiliary lower stitching members 43 cooperate with the upper ones 42.
  • the ribbed shaft 58 slides coaxially inside the transmission shaft 57, thus actuating it.
  • Devices for tensioning the stitching threads can also be associated with the auxiliary lower stitching members 43, and can be activated for example by a rotary shaft 62 ( fig. 6 ) mounted on the support brackets 60, in the same way as the transmission shaft 57.
  • the cutting devices 55 associated with the auxiliary upper stitching members 42 are driven by the alternate motion to which the auxiliary upper stitching members 42 are subjected.
  • the blade 71 of the cutting devices 55 is mounted in a predetermined position along the longitudinal extension of the second support bar 45 of the auxiliary upper stitching members 42 and between at least one pair of needles, which can possibly be distanced from each other by a quarter of an inch. It is clear that in other forms of embodiment several cutting devices 55 can be provided, disposed distanced along the longitudinal development of the second support bar 45.
  • Each cutting device 55 is configured to cut the material 17 being worked into bands of a predefined width.
  • This solution is particularly advantageous for making bands for mattresses, since with the upper stitching members 13 and lower stitching members 15 and possibly with the auxiliary upper 42 and lower 43 stitching members it is possible to sew the desired patterns on the whole surface of the material 17 and simultaneously obtain also a plurality of bands with a predefined width.
  • This solution allows to reduce waste in making bands for mattresses and avoids having to use several machines for doing the quilting and cutting.
  • this solution allows to cut the bands for mattresses to size, quilted with or without cording, sewn for example at 3 mm from the selvages, and ready to be assembled on the mattresses.
  • bands for mattresses is shown in fig. 7 , where it is possible to identify first stitches 73 made with the upper 13 and lower 15 stitching members, second, rectilinear stitches 74 made with the auxiliary upper 42 and lower 43 stitching members, the cutting line 75 made by the cutting devices 55 and the selvages 77 of the bands 76 for mattresses that are obtained.
  • Possible solutions of the present invention can provide that the cutting devices 55 are associated with activation/de-activation members configured to activate/ de-activate the cutting devices 55.
  • the cutting devices 55 are able to be selectively activated/de-activated by the same activation/de-activation members 54 of the auxiliary upper stitching members 42.
  • the multi-needle quilting machine 10 comprises units to feed the threads to the upper stitching members 13, the lower stitching members 15, the auxiliary upper stitching members 42 and the auxiliary lower stitching members 43.
  • the upper stitching members 13 and the lower stitching members 15 are fed from respective thread feed units that are mounted on the first platform 22 and move solidly with it.
  • auxiliary upper stitching members 42 and the auxiliary lower stitching members 43 are served by respective thread feed units mounted in a fixed position on the base 23.
  • At least one of either the thread feed unit of the upper stitching members 13 or the lower stitching members 15 are mounted on a structure, or support raddle, that is fixed, attached on the base 23.
  • the lower stitching members 15 are served by a thread feed unit or raddle 63 mounted sliding in a direction parallel to the direction of movement D, on a support structure 64.
  • the support structure 64 is in turn mounted fixed on the base 23. In this way, the fixed support structure 64, which feeds the materials to be quilted, is separated and made autonomous from the first platform 22.
  • the support structure 64 comprises two uprights 65 attached to the base 23 and a longitudinal guide 66 attached to the uprights 65 and located parallel to the longitudinal axis X.
  • a slider 67 is slidingly mounted on the longitudinal guide 66, and is configured to support a plurality of reels of thread, each of which is provided to feed one of the lower stitching members 15.
  • the slider 67 is connected by means of wires 68 and return pulleys 69 to a mobile part 70 of the first platform 22, such as for example a frame to protect and contain the actuation means of the lower stitching members 15 and the auxiliary lower stitching members 43.
  • the movement of the first platform 22 in the direction of movement D entails a simultaneous movement of the thread feed unit 63, in order to guarantee a correct feed of the threads to the lower stitching members 15.
  • At least one of either the introduction unit 10a or the exit unit are served by tensioning devices 36 which can be mounted on the base 23, respectively upstream or downstream of the first stitching unit 80 and the second stitching unit 81, and are configured to keep the material 17 being quilted under tension so that the stitches can be made correctly.
  • the fabrics and paddings that make it up can be suitably tensioned, preventing curling and creases in the material 17, compared with the movement that the material 17 would make in traditional machines, thus obtaining perfect, not distorted patterns.
  • Auxiliary devices 72 shown schematically in fig. 5 and for example of the type described in WO-A-00/70137 , can also be associated with the upper stitching members 13 and the auxiliary upper stitching members 42.

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  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Sewing Machines And Sewing (AREA)

Claims (19)

  1. Mehr-Nadel-Steppmaschine, welche zumindest eine Basis (23), eine Einführungsvorrichtung (10a), welche dazu eingerichtet ist, zumindest ein zu steppendes Material (17) entlang einer Einführungsrichtung (A) einzuführen, und mindestens eine Nähvorrichtung (80, 81) umfasst, um Nähte auf mindestens einem Material (17) herzustellen, wobei die Maschine eine erste Nähvorrichtung (80) und mindestens eine zweite Nähvorrichtung (81) umfasst, welche jeweils mit mindestens einer Reihe (13, 42) von Nadeln (12) mit einer länglichen Ausprägung entlang einer jeweiligen longitudinalen Achse (X) versehen sind, wobei zumindest die zweite Nähvorrichtung (81) auf mindestens einer Plattform (22, 31) in einer Bewegungsrichtung (D), welche im Wesentlichen senkrecht zu der Einführungsrichtung (A) ist, gegenüber der Basis (23) wahlweise verschiebbar montiert ist, wobei die Maschine dadurch gekennzeichnet ist, dass zumindest die ersten Nähvorrichtung dazu (80) eingerichtet ist, stationär gegenüber der Basis (23) positioniert zu werden, und dadurch gekennzeichnet ist, dass Schneidvorrichtungen (55) der Reihe (42) von Nadeln (12) der ersten Nähvorrichtung (80) zugeordnet sind und dazu eingerichtet sind, das Material (17) in einer Richtung zu schneiden, welche parallel zu der Einführungsrichtung (A) ist, wobei die Schneidvorrichtung (55) durch die alternierende Bewegung betrieben wird, welcher die Reihe (42) der Nadeln (12) der ersten Nähvorrichtung (80) unterworfen wird.
  2. Maschine nach Anspruch 1, welche dadurch gekennzeichnet ist, dass die Schneidvorrichtungen (55) mindestens eine Schneide (71) umfassen, welche in einer festgelegten Position entlang der longitudinalen Erstreckung der Reihe (42) von Nadeln (12) der ersten Nähvorrichtung (80) und zwischen mindestens einem Paar von Nadeln (12) angebracht ist.
  3. Maschine nach Anspruch 1 oder 2, welche dadurch gekennzeichnet ist, dass den Schneidvorrichtungen (55) Aktivierungs-/Deaktivierungs-Elemente zugeordnet sind, welche dazu eingerichtet sind, die Schneidvorrichtungen (55) zu aktivieren/deaktivieren.
  4. Maschine nach einem der vorhergegangenen Ansprüche, welche dadurch gekennzeichnet ist, dass jede Reihe (13, 42) von Nadeln (12) sich im Wesentlichen entlang der gesamten longitudinalen Ausdehnung der Nähvorrichtung erstreckt, um die ArbeitsBreite der Maschine festzulegen.
  5. Maschine nach einem der vorhergegangenen Ansprüche, welche dadurch gekennzeichnet ist, dass die Maschine eine erste Plattform (22) und eine zweite Plattform (31) umfasst, welche benachbart zueinander angeordnet sind und auf welchen die erste Nähvorrichtung (80) und die zweite Nähvorrichtung (81) montiert sind.
  6. Maschine nach Anspruch 5, welche dadurch gekennzeichnet ist, dass die erste Plattform (22) auf der Basis (23) montiert ist und wahlweise gegenüber dieser beweglich ist, und dadurch, dass die zweite Plattform (31) auf der ersten Plattform (22) montiert ist und Führungselemente (33) zwischen der ersten Plattform (22) und der zweiten Plattform (31) eingefügt sind.
  7. Maschine nach Anspruch 6, welche dadurch gekennzeichnet ist, dass die zweite Nähvorrichtung (81) auf der ersten Plattform (22) montiert ist und die erste Nähvorrichtung (80) auf der zweiten Plattform (31) montiert ist und dadurch gekennzeichnet ist, dass die Führungselemente (33) selbst-klemmend sind, um die relative Position der zweiten Plattform (31) gegenüber der ersten Plattform (22) wahlweise einzuschränken.
  8. Maschine nach Anspruch 6 oder 7, welche dadurch gekennzeichnet ist, dass die zweite Plattform (31) mit einer Klemmvorrichtung (85) versehen ist, welche dazu eingerichtet ist, die Position der zweiten Plattform (31) gegenüber der Basis (23) einzuschränken.
  9. Maschine nach Anspruch 5, welche dadurch gekennzeichnet ist, dass die erste Plattform (22) und die zweite Plattform (31) jeweils auf der Basis (23) montiert sind, wobei jeweilige Führungselemente (24, 33) der ersten Plattform (22) und der zweiten Plattform (31) zugeordnet sind, um deren unabhängige Bewegung gegenüber der Basis (23) zuzulassen.
  10. Maschine nach Anspruch 9, welche dadurch gekennzeichnet ist, dass jeweilige Bewegungselemente (27, 83) der ersten Plattform (22) und der zweiten Plattform (31) zugeordnet sind, um die erste Plattform (22) und die zweite Plattform (31) gegenüber der Basis (23) unabhängig voneinander zu bewegen.
  11. Maschine nach einem der Ansprüche 1 bis 9, welche dadurch gekennzeichnet ist, dass mindestens eine der ersten Nähvorrichtung (80) oder der zweiten Nähvorrichtung (81) in einer Bewegungsrichtung (D), welche im Wesentlichen senkrecht zu der Einführungsrichtung (A) ist, beweglich gegenüber der ersten Plattform (22) ist.
  12. Maschine nach einem der vorhergegangenen Ansprüche, welche dadurch gekennzeichnet ist, dass die Einführungsvorrichtung (10a) stationär gegenüber der Basis (23) ist und dazu eingerichtet ist, das Material (17) nur in der Einführungsrichtung (A) einzuführen.
  13. Maschine nach einem der vorhergegangenen Ansprüche, welche dadurch gekennzeichnet ist, dass die erste Nähvorrichtung (80) und die zweite Nähvorrichtung (81) jeweils mit ihren eigenen, voneinander unabhängigen Aktivierungselementen versehen sind.
  14. Maschine nach einem der vorhergegangenen Ansprüche, welche dadurch gekennzeichnet ist, dass die erste Nähvorrichtung (80) mit der mindestens einen Reihe (42) von Nadeln (12), unterstützenden unteren Nähelementen (43) und Klemmelementen (40) versehen ist, welche der mindestens einen Reihe (42) von Nadeln (12) und den unterstützenden unteren Nähelementen (43) zugeordnet sind, wobei die Klemmelemente (40) dazu eingerichtet sind, wahlweise die Bewegung der Reihe (42) von Nadeln (12) und der unterstützenden unteren Nähelemente (43) entlang einer Richtung, welche parallel zu der longitudinalen Achse (X) ist, zu klemmen.
  15. Maschine nach einem der vorhergegangenen Ansprüche, welche dadurch gekennzeichnet ist, dass die mindestens eine Reihe (13) von Nadeln (12) der zweiten Nähvorrichtung (81) mindestens eine Halteschiene (11) umfasst, welche dazu eingerichtet ist, die Nadeln (12), welche entlang der longitudinalen Achse (X) ausgerichtet sind, zu halten, und Antriebselemente (14), welche dazu eingerichtet sind, eine alternierende Bewegung für zumindest die Reihe (13) von Nadeln (12) der zweiten Nähvorrichtung (81) bereitzustellen.
  16. Maschine nach Anspruch 15, welche dadurch gekennzeichnet ist, dass die Antriebselemente (14) mit der Reihe (42) von Nadeln (12) der ersten Nähvorrichtung (80) verbunden sind, um diese zu aktivieren.
  17. Verfahren zum Steppen von mindestens einem Material (17), wobei das Verfahren vorsieht, das Material (17) in einer Einführungsrichtung (A) mittels einer Einführungsvorrichtung (10a) einzuführen und Nähte auf dem Material (17) mittels mindestens einer Nähvorrichtung (80, 81) herzustellen, welche auf einer Basis (23) angebracht ist, wobei das Verfahren eine erste Nähvorrichtung (80) und mindestens eine zweite Nähvorrichtung (81) umfasst, welche jeweils mit mindestens einer Reihe (13, 42) von Nadeln (12) mit einer länglichen Ausprägung entlang einer jeweiligen longitudinalen Achse (X) versehen sind, wobei zumindest die zweite Nähvorrichtung (81) auf einer ersten Plattform (22) montiert ist und wobei während des Herstellens der Nähte die Bewegung der ersten Plattform (22) gegenüber der Basis (23) in einer Bewegungsrichtung (D), welche im Wesentlichen senkrecht zu der Einführungsrichtung (A) ist, vorgesehen ist, wobei das Verfahren dadurch gekennzeichnet ist, dass zumindest die erste Nähvorrichtung (80) stationär gegenüber der Basis (23) angebracht ist, und dadurch gekennzeichnet ist, dass Schneidvorrichtungen (55), welche der Reihe (42) von Nadeln (12) der ersten Nähvorrichtung (80) zugeordnet sind, das Material (17) in einer Richtung schneiden, welche parallel zu der Einführungsrichtung (A) ist, wobei die Schneidvorrichtung (55) durch die alternierende Bewegung betrieben wird, welcher die Reihe (42) von Nadeln (12) der ersten Nähvorrichtung (80) unterworfen sind.
  18. Verfahren nach Anspruch 17, welches dadurch gekennzeichnet ist, dass während des Herstellens der Nähte die erste Nähvorrichtung (80) stationär gegenüber der Basis (23) gehalten wird und die zweite Nähvorrichtung (81) mit der ersten Plattform (22) bewegt wird.
  19. Verfahren nach Anspruch 17 oder 18, welches dadurch gekennzeichnet ist, dass während des Herstellens der Nähte auf dem Material (17) die erste Nähvorrichtung (80) gleichzeitig andere Nähte herstellt, welche entlang einer Richtung ausgerichtet sind, welche parallel zu der Einführungsrichtung (A) ist.
EP14815026.1A 2013-11-14 2014-11-13 Mehrnadelsteppmaschine und entsprechendes steppverfahren Active EP3068937B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IT001892A ITMI20131892A1 (it) 2013-11-14 2013-11-14 Macchina trapuntatrice multiaghi e relativo metodo di trapuntatura
ITMI20141016 2014-05-30
PCT/IB2014/066018 WO2015071855A1 (en) 2013-11-14 2014-11-13 Multi-needle quilting machine and corresponding quilting method

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WO2015071855A1 (en) 2015-05-21
ES2718375T3 (es) 2019-07-01
EP3068937A1 (de) 2016-09-21

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