EP2351881B1 - Machine à broder multitête - Google Patents

Machine à broder multitête Download PDF

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Publication number
EP2351881B1
EP2351881B1 EP10195854A EP10195854A EP2351881B1 EP 2351881 B1 EP2351881 B1 EP 2351881B1 EP 10195854 A EP10195854 A EP 10195854A EP 10195854 A EP10195854 A EP 10195854A EP 2351881 B1 EP2351881 B1 EP 2351881B1
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EP
European Patent Office
Prior art keywords
needle
embroidery
drive
embroidery machine
machine according
Prior art date
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Not-in-force
Application number
EP10195854A
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German (de)
English (en)
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EP2351881A1 (fr
Inventor
Franz Lässer
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Laesser AG
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Laesser AG
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Publication of EP2351881A1 publication Critical patent/EP2351881A1/fr
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    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05C—EMBROIDERING; TUFTING
    • D05C3/00—General types of embroidering machines
    • D05C3/02—General types of embroidering machines with vertical needles
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B29/00—Pressers; Presser feet
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05C—EMBROIDERING; TUFTING
    • D05C9/00—Appliances for holding or feeding the base fabric in embroidering machines
    • D05C9/20—Movement of the base fabric controlled by the presser feet; Driving arrangements therefor

Definitions

  • the present invention relates to a multi-head embroidery machine according to the preamble of claim 1.
  • a first type of classification is based on the number of thread systems involved in the embroidery process: in some machines, the embroidery is produced by only one thread system, other machines require two thread systems, namely, in addition a second sub, Hind, spool, shuttle or bobbin thread.
  • a second type of classification is based on the number of needles working at the same time:
  • the one-needle embroidery machines include the Singer, Eagle and Crank embroidery machines.
  • Multi-needle or rapport embroidery machines are shuttle embroidery machines and the hand embroidery machine.
  • the multi-head embroidery machine which can be assigned to neither of the above two groups.
  • the principle of this machine is based on the fact that mounted on a large table top 3, 4, 6, 10 or 12 Singer embroidery machine heads, which are set by a common drive shaft in motion. The synchronization of the heads thus achieved is necessary so that all needles simultaneously pierce or are out of the embroidery ground.
  • the embroidery bottom can be clamped individually for each head in an embroidery hoop.
  • These hoops are fastened by means of screw connections to a gate-like structure, which is controlled by a small automaton in the horizontal plane.
  • the embroidery field is approx. 240 x 200 mm.
  • the stitch formation organs and the stitch formation process are identical to those of the Singer embroidery machine. The only difference to these is that on each needle still a presser is provided which holds the embroidery bottom during stitch formation. The presser foot is raised whenever the hoop moves.
  • individual embroidery heads are usually equipped with a thread monitor system, which automatically shuts off the machine when the thread breaks.
  • the first multi-head embroidery machines were offered 100 years ago by the German Singer Nähmaschinen factory (see “ The Art Of Embroidery, Coleman, Schneider, 1991 ).
  • the first automatic multi-head embroidery machine was launched on the market in 1927 (also known as the "Würker Automat”). Technology and Product Theory, Klaus Freier, VEB book publisher, für, 1991, pages 130 to 131 ) Directed.
  • each needle point comprises a thread monitor (optional), a thread guide (also referred to in the literature as thread take-up lever), thread guide devices, including stitch-compensating thread tension parts, for the upper thread and a needle arranged on a needle plunger which moved up and down and from a drive unit is driven.
  • thread guide devices including stitch-compensating thread tension parts, for the upper thread and a needle arranged on a needle plunger which moved up and down and from a drive unit is driven.
  • the aforementioned stitch-forming components are also referred to in the present description as an upper thread unit.
  • the embroidery heads of the multi-head embroidery machines are mounted laterally displaceable on a support arm. Below each embroidery head is a throat plate in which a needle hole is provided for the needle and which defines the embroidery point locally.
  • Each needle of an embroidery head is displaceable laterally to the mentioned embroidery point, on which the embroidered embroidery material spanned in a clamping frame which can be displaced in the x- and y-direction during operation rests.
  • the needle which is located at the embroidery site, penetrates through the embroidery material and into the needle hole during the movement of the needle.
  • the upper thread is passed through the embroidery material and formed by a corresponding needle movement, a loop on the back of the embroidery material. Through this loop then the lower thread is guided.
  • the upper thread When retracting the needle, the upper thread is tightened and formed in the embroidery a so-called stitch.
  • embroidering only one of the needle points is active, namely the one which is located at the embroidery point.
  • the embroidery heads of the mentioned multi-head embroidery machines are arranged in a known manner in a specific Rapportlie along the support arm.
  • a characteristic of these multi-head multi-needle embroidery sewing machines is therefore that there are a plurality of needle locations per embroidery head. This has the advantage that each Needle point can be equipped with a different thread and therefore buntings can be performed by always only the corresponding needle is put into action.
  • the needle plunger and their associated thread levers of a group of needles are usually mounted in a needle housing, which brings the selected needle plunger and the associated thread lever before a stationary mounted drive for the purpose of changing the thread by moving.
  • a conventional multi-head multi-needle embroidery sewing machine is exemplary in the FIGS. 1 and 2 shown.
  • This comprises a frame 201, an embroidery table 203 arranged on the frame 201 and a plurality of embroidery heads 205 arranged in series above the embroidery table FIG. 2 it can be seen, each embroidery head 205 has a plurality of needle points equipped with a needle 215 each.
  • Each needle point includes stationary thread guide elements 207 or thread brakes, an up and down movable thread receiving lever resp. Thread guide 209, Fadenumlenkmaschine 211 and one on a needle cancer 213 with needle tappet 214 arranged needle 215.
  • each needle plunger 214 is equipped with a presser 217.
  • the embroidery frames 219 can be inserted into a large clamping frame 221 which extends across the width of the embroidery table 203.
  • the clamping frame 221 is displaceable in a known manner in the x and y directions.
  • the embroidery heads are arranged on a linear guide 223 and displaceable along it in the x-direction.
  • a disadvantage of the known multi-head embroidery sewing machines is that the presser footprints are arranged directly on the needle plunger and thus coupled to the movement of the needle plunger. Another disadvantage is that a separate presser footer is required for each needle.
  • the Stoffdschreibfuss is disposed on a rod which is guided vertically movable by a guide member.
  • a guide member On this rod, two position members are fixed in a middle section at a distance from each other. Between these position links is a link which is rotatably mounted on the rod. The link is connected via a connecting arm and a drive lever to the shaft of the presser foot drive motor.
  • a roller On one of the position members, a roller is arranged, which engages in a guide groove of the guide member.
  • the guide groove has an upper and a lower straight guide portion, which are interconnected via an inclined guide portion. In sewing mode, the roller in the lower guide section moves up and down synchronously with the needle drive. In this case, a needle hole of Stoffdrückfusses exactly above the needle hole of a needle plate.
  • the drive shaft of the drive motor is rotated so far that the roller is moved over the oblique guide section to the end of the upper guide section.
  • the rod rotates, on which the presser foot is arranged, so that the needle hole of the presser foot is spaced from the needle hole of the throat plate.
  • the German patent application DE-OS-10 2008 004855 discloses a device for lifting the presser foot of a multi-head embroidery machine.
  • the device comprises a driving cam arranged on a drive cam, which cooperates with a transmission element for generating a vibrating movement of the latter.
  • the transmission element is articulated at a first end of a drive lever, which is rotatable about a pivot point.
  • the second end of the drive lever is articulated on a drive block, which is guided vertically movably along a guide rod.
  • the drive block carries a connection holder which interacts with a drive holder in a form-fitting manner.
  • the drive holder is guided axially movably on a needle plunger.
  • a presser foot drive shaft is arranged parallel and at a small distance from the needle bar guide shaft.
  • a presser foot height adjuster for moving the pivot point of the presser foot drive lever. This makes it possible to adjust the height of the presser foot.
  • DE-OS-10 2008 012 846 which is a further development of the embroidery machine DE-OS-10 2008 004855 can be taken, is provided between the drive block and the connection holder, a spring which biases the connection holder down.
  • a spring which biases the connection holder down.
  • the embodiment of the DE-OS-10 2008 012 846 is further characterized in that both the needle bar and the Stoffdrückerfuss be operated by an individual drive mechanism. This has the advantage that the movement path of the presser foot can be generated freely and thus the stroke or the lower end point of the presser foot can be generated freely.
  • the disadvantage on the other hand, is that it requires a complex control in order to synchronize the individual drives. Yet another disadvantage is that a number of motors corresponding to the number of pin locations is required for each pin location. This makes the embroidery machine described not only expensive, but also prone to repairs.
  • Object of the present invention is to propose a multi-head embroidery needle sewing machine, which does not have certain of the aforementioned disadvantages.
  • an object is to provide a multi-head multi-needle embroidery sewing machine, which is characterized by a higher efficiency compared to conventional machines.
  • the aim is to provide a machine in which the presser foot is independent of the movement of the needle tappet movable.
  • Another goal is to propose an embroidery machine whose drive is robust and inexpensive to produce.
  • the present invention relates to a multi-head embroidery machine.
  • This has at least one embroidery head, which has a plurality of needle locations.
  • the needle points are arranged relative to an embroidery point in the x-direction, ie laterally displaceable on a support.
  • Each needle point comprises organs, such as thread guides, thread guiding devices, and a needle plunger, to each of which a needle can be fastened.
  • the needle plungers can be moved back and forth in the z-direction.
  • the aforementioned organs are collectively referred to as upper thread unit.
  • Each embroidery head is assigned a lower thread unit. Between the upper thread unit and the lower thread unit, a clamping frame for clamping an embroidery material is arranged.
  • the clamping frame has two in the y-direction spaced from each other first and second fabric holding elements.
  • German patent no. DE 196 55 324 shows a single machine head of a multi-head chain stitch sewing machine. This has a machine arm, which is penetrated by a main engine shaft. On the main machine shaft, a needle bar cam, a nipple cam and a textile Anpress-cam are rotatably mounted. On a carrier shaft extending parallel to the main machine shaft, a needle bar driving lever, nipple driving lever and a textile pressing driving lever are freely rotatably arranged. The said levers cooperate with one end with the above-mentioned cams and with the other end with a needle bar lifting element, a nipple lifting element and a textile Anpress levers together.
  • the needle bar cam and the nipple cam are provided with cutout areas to disengage the corresponding drive levers from the cam discs.
  • a cam shaft driven by a separate electric motor is provided which extends parallel to the main engine shaft and carrier shaft.
  • On the cam shaft retraction cam discs are arranged, which cooperate with an extension of the drive lever and can bring this out of engagement with the needle bar cam and the nipple cam.
  • the textile nip pressing lever is also rotated beyond the rotation range in which the sewing operation is performed so as to release the lock between the main machine shaft and the drive lever.
  • the drive unit described has the advantage that any machine head can be shut down without a clutch mechanism is used.
  • multi-head embroidery machines have a transmission, e.g. with a central drive shaft to synchronously drive the upper and lower thread unit.
  • the problem is solved in an embroidery machine according to the preamble of claim 1, characterized in that the gearbox of the presser units are driven by a common presser-drive shaft.
  • This has the advantage that a synchronization with the needle movement is possible.
  • the drive can be produced inexpensively.
  • the engine of the main drive shaft of the embroidery machine can be used to drive the presser-drive shaft by the main drive shaft is coupled to the fabric presser drive shaft.
  • the main drive shaft and the presser drive shaft preferably extend over the entire length of the embroidery machine.
  • the same drive shaft is used for driving the needle tappet and the fabric presser and preferably the large thread guide.
  • a gear can be used, as described below for the presser foot.
  • the axially movable presser foot is arranged at a distance from a needle fastened to the needle tappet.
  • the fabric presser is thus no longer located directly on the needle plunger, but defined as a separately driven unit that can be completely separate from the needle drive in a multi-needle embroidery machine.
  • This has the big advantage that only one fabric presser per embroidery head is needed.
  • the presser foot is no longer directly coupled to the movement of the needle tappet. This has, among other things, the further great advantage that the presser foot is not subject to the movement pattern of the needle and can even obtain a completely independent movement pattern.
  • the inventive multi-needle embroidery machine which builds on the already known for many decades Singer embroidery sewing machine, thus goes a completely new approach.
  • the fabric presser is very close to the needle.
  • the distance between the needle and the fabric presser is between 2 and 4 millimeters. This means that the maximum stitch length is limited to this distance from 2 to 4 mm. Otherwise, namely, would be trapped in the stitch formation of the upper thread between the fabric presser and the needle plate, which can lead to a yarn breakage.
  • the presser unit comprises a presser tab, to which a presser finger is preferably releasably secured, wherein the presser finger is located at a distance from a needle arranged on the needle tappet.
  • the distance of the fabric presser finger is preferably more than 5 mm, preferably more than 10 mm and most preferably 12 or more mm from the needle.
  • each presser unit is driven by a separate gear.
  • This has the advantage that not too large masses must be moved.
  • An advantageous embodiment provides that the material pressing units can be driven by a common drive shaft. This has the advantage that the synchronization with the needle movement is simplified.
  • the drive shaft may be arranged on the carrier and extend over the entire length of the machine, Incidentally, the drive shaft for the presser unit may be coupled to a central drive shaft.
  • a separate from the needle drive unit gear is driven for the presser unit.
  • gear such as a coupling or cam gear
  • the transmission comprises a pivotable about a pivot axis pivot lever which drives the presser unit.
  • a pivot lever is preferably arranged stationary and rotationally fixed on an axis.
  • Cams, eccentrics, cams, etc. can be used to generate a swinging motion. be used.
  • One solution provides a gear with cams which converts the rotary motion of the drive shaft into a reciprocating motion of the presser foot.
  • the transmission may include a lever mechanism and an eccentric gear to produce the reciprocating movement of the presser foot.
  • a cost-effective solution provides that the drive shaft is coupled to generate the oscillating movement with the main drive shaft of the embroidery machine. This can be done by toothed belts, chains or in other ways. As a result, the presser foot moves completely synchronously with the needle drive.
  • the presser foot is articulated on the first end of the pivoting lever, and the transmission engages on the second end.
  • a first and a second extension are provided at a distance from each other at the second proximal end of the pivot lever.
  • These two first and second extensions are advantageously arranged on opposite sides of a plane passing through the pivot axis of the pivoting lever and the axis of rotation of the drive shaft.
  • a first eccentric disc engage to produce a movement of the pivot lever in one direction and the second extension attack a second eccentric to produce a movement of the pivot lever in the opposite direction.
  • the presser comprises a Stoffdschreiber ram, whose first end is articulated via a balancing connecting rod at the first end of the pivot lever, and at the second end of a presser finger is fixed.
  • the compensation piston compensates for the deflection, which is generated by the partial circular movement of the pivot lever.
  • the presser finger is made of an elastically deformable material, preferably spring steel. This can be inexpensively produced by means of forming technology from a steel sheet.
  • the part of the presser finger which contacts the fabric is preferably coated with elastic plastic.
  • the fabric presser is made axially movable relative to Stoffdrückerstössel. This has the advantage that different high embroidery and / or different thicknesses of materials can be recorded.
  • the presser foot is arranged stationary on the embroidery machine, that is not moved laterally.
  • a plurality of embroidery heads are arranged laterally movably on a mounting rail.
  • the embroidery head is moved so far laterally relative to a drive element to select another needle point until the desired needle point can interact with the drive element.
  • an embroidery machine frame is provided on which the drive for the stitch-forming members is preferably stationary, i. stationary, is arranged.
  • the one or more embroidery heads having a plurality of needle locations are laterally displaceable relative to the drive.
  • a plurality of embroidery heads is provided.
  • the presser unit 11 shown in the figures essentially comprises an axially upwardly and downwardly movable presser foot 13 and a gear 15 for producing the material presser movement.
  • the presser 13 consists of a Stoffdschreiber ram 17, at the first end of a compensation spigot 19 is hinged, and at the second end of a fabric presser finger 21 is releasably attached.
  • the Stoffdschreibstössel 17 is guided axially displaceable by means of one or more bearings or guide bushes not shown in the figure.
  • the presser finger 21 has a lower portion 22 with a preferably flat foot 23 which abuts the embroidery material during operation of the embroidery machine and in the lower dead position of the fabric presser (s. Fig. 3 and 5 ).
  • An upper portion 24 of the Stoffdschreiberfingers 21 is U-shaped and serves for attachment to the Stoffdschreibstössel 17.
  • the presser finger 21 is fastened by means of a clamping block 35 releasably attached to the Stoffdschreibstössel 17.
  • the terminal block 35 is fastened by means of a locking screw 37 on Stoffdschreibstössel 17.
  • the Stoffdschreiberfingerfinger 2list by a protruding from the terminal block 35 pin 33 in the slot 34 against rotation.
  • the pin 33 protrudes through a slot 34 in the base leg of the U-shaped portion of the presser finger.
  • the longitudinal extent of the slot limits the maximum travel of the presser finger 21 relative to the Stoffdschreibstössel 17.
  • a Stoffdschreiberstössel 17 between the clamping block 35 and the leg 25 arranged spring 28 pushes the leg 25 down and pulls the leg 27 to the stop 26, which preferably from dampening Material exists.
  • a stop 26 for example, serve a plastic washer.
  • plastic material for the stop 26 an elastomer can also be used. Due to the resilient and resilient design of the presser finger 21, on the one hand, differently high embroideries and, on the other hand, fabrics of different thicknesses can be retained on an embroidery plate present under the embroidery material.
  • the foot 23 is arranged via a connecting part 28 on the leg 25 of the presser foot 21.
  • the foot 23 is formed as a plane, preferably approximately rectangular contact plate, which extends approximately parallel to the legs 25,27 and preferably in alignment therewith.
  • the present presser foot has no recess or opening for a needle, since it is arranged at a greater distance from the needle.
  • the gear 15 for generating the material pressing movement in the axial longitudinal extent comprises a pivotable about a pivot axis 41 pivot lever 43, which with its first end with the presser foot 13, respectively. the compensation connecting rod 19, hinged ( Fig. 3 ).
  • a first extension 45 and a second extension 47 are formed.
  • a first roller 49 is freely rotatably mounted, which can cooperate with a first cam 51 of the transmission 15.
  • a second roller 53 is freely rotatably mounted, which with a second cam 55 of the transmission 15th can interact.
  • the two cam disks 51, 55 define eccentric cam tracks with their circumference.
  • cam tracks are formed so that the pivot lever 43 is performed by cooperation of the eccentric cam 51,55 with the rollers 49,53 during one revolution of the cam 51,55 play. This is achieved by a cam follower seated on a slightly eccentric bolt, and this bolt is rotated until the pivot lever runs free of play.
  • the cams 51,55 are rotatably mounted on a rotatable about a rotation axis 57 drive shaft 59.
  • This drive shaft 57 serves the common drive of all fabric presser of an inventive multi-head embroidery machine.
  • another motion conversion mechanism known to those skilled in the art may be used, which converts a rotary motion of a drive shaft into an oscillatory motion of a stitch forming member such as a presser foot. This may for example be a cam with an endless cam groove or track, which is arranged rotationally fixed to the drive shaft. In the cam track, a cam follower is guided, which converts the rotary motion of the drive shaft into a reciprocating motion.
  • FIG. 6 shows a partial view of an embroidery head 61 in a perspective view.
  • the view shows the needle at bottom dead center of the stitch formation movement.
  • the embroidery head 61 shown has a total of 6 needle points 63, each of which is equipped with a large thread guide 65, thread guide means 67 and a needle tappet 70 with needle 69 arranged thereon. It can be seen that only one single presser foot 13 per embroidery head 61 is provided, which is stationary, ie non-displaceable laterally, arranged on a carrier 71. On the carrier 71 one and preferably a plurality of guides 73 are provided (in Fig. 6 only one is shown), along which the embroidery head 61 is displaceable with the needle points. This means that the embroidery head 61 is designed as a carriage, which is mounted displaceably on the guides 73.
  • the carrier 71 is fixedly arranged on an embroidery machine frame 72, not shown in detail.
  • a stitch plate 75 is provided, on which a sticking surface rests during the embroidering.
  • the needle plate 77 is provided in the needle plate 75, through which the needle 69 can guide the needle thread on the back of the embroidery ground.
  • There is a distance a between the needle 69 and the presser foot 21 which is greater than 5 mm, preferably more than 8 mm and most preferably more than 12 mm.
  • the embroidery head 61 is displaced relative to the carrier 71 until that point of the needle, which is equipped with the desired thread, is positioned in front of a drive element not shown in detail.
  • the drive element is coupled to the needle plunger so that the oscillating movement of the needle plunger can be effected via a rotating drive shaft and a corresponding gear.
  • the fabric pusher ram can be permanently coupled to the drive ".
  • An embroidery machine in particular a multi-needle embroidery machine, has at least one embroidery head arranged on a carrier 71, which has a plurality of needle locations 63.
  • the needle points 63 are arranged laterally displaceable relative to an embroidery point in a direction of displacement along the carrier 71.
  • Each needle point 63 includes by definition all essential stitch forming organs, such as a thread guide 65, various thread guide devices 67, and arranged on a needle tappet 70 needle 69.
  • the needle tappets 70 arranged thereon needles 69 are respectively by a needle drive unit in a first direction back and forth respectively. movable up and down.
  • Each embroidery head is associated with a lower thread unit, which supplies the lower thread.
  • a arranged on a frame 72 gear 15 ensures the synchronous movement of the stitch-forming organs of the upper thread unit and the lower thread unit.
  • the described multi-needle embroidery machine is characterized in that on the frame 72 per embroidery head at least one presser unit 11 is provided with an axially movable presser foot 13 at a distance from the needle tappet 70.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)

Claims (15)

  1. Machine à broder à plusieurs têtes avec une multitude de têtes à broder placées sur un support (71), chaque tête à broder présentant une multitude d'endroits d'aiguilles (63) qui sont placés déplaçables par rapport à un endroit à broder dans un sens de déplacement le long du support (71), c'est-à-dire latéralement, et chaque endroit d'aiguille (63) présente un poussoir d'aiguille (70) sur lequel une aiguille (69) est placée ou peut être placée,
    avec un mécanisme placé sur le support (71) pour générer le mouvement de va-et-vient du poussoir d'aiguille et
    avec respectivement une unité individuelle de presseur (11) avec un presseur (13) mobile axialement pour chaque tête à broder, comprenant respectivement un mécanisme pour chaque presseur,
    caractérisée en ce
    que les mécanismes des unités de presseur (11) sont entraînés par un arbre d'entraînement (59) commun pour les presseurs.
  2. Machine à broder selon la revendication 1, caractérisée en ce que le presseur mobile axialement (13) est placé espacé d'une aiguille fixée sur le poussoir d'aiguille (70).
  3. Machine à broder selon la revendication 1 ou 2, caractérisée en ce que l'unité de presseur (11) comprend un poussoir de presseur (17) sur lequel un doigt de presseur (21) est fixé, de préférence de manière amovible, le doigt de presseur (21) se trouvant espacé du poussoir d'aiguille (70) ou d'une aiguille placée sur le poussoir d'aiguille (70).
  4. Machine à broder selon l'une des revendications 1 à 3, caractérisée en ce que le mécanisme (15) comprend un levier pivotant (43), qui peut pivoter autour d'un axe de pivotement (41), qui entraînel'unité de presseur (11).
  5. Machine à broder selon l'une des revendications 1 à 4, caractérisée en ce que le mécanisme (15) comprenddes cames (51, 55) qui génèrent le mouvement en va-et-vient du presseur (13).
  6. Machine à broder selon l'une des revendications 1 à 5, caractérisée en ce que le mécanisme (15) génère le mouvementen va-et-vient du presseur (13) par un mécanisme de levier et un mécanisme d'excentrique.
  7. Machine à broder selon l'une des revendications 4 à 6, caractérisée en ce que le presseur (13) est articulé à une première extrémité du levier pivotant (43) et le mécanisme (15)attaque à la seconde extrémité.
  8. Machine à broder selon l'une des revendications 4 à 7, caractérisée en ce qu'un premier et un second prolongement (45, 47) sont prévus espacés l'un de l'autre à la seconde extrémité du levier pivotant (43), lesquels premiers et seconds prolongements (45, 47) sont placés sur des côtés opposés d'un plan qui traverse l'axe de pivotement (41) du levier pivotant (43) et de l'axe de rotation (57) de l'arbre d'entraînement (59) et
    qu'un premier disque d'excentrique (51) attaque au premier prolongement (45) pour générer un mouvement du levier pivotant (13) dans un sens et qu'un second disque d'excentrique (55) attaque au second prolongement (47) pour générer un mouvement du levier pivotant (13) dans le sens opposé.
  9. Machine à broder selon l'une des revendications 4 à 8, caractérisée en ce que le presseur (13) comprend un poussoir de presseur (17) dont la première extrémité est articulée par une bielle de compensation (19) à la première extrémité du levier pivotant (13) et qu'un doigt de presseur (21) est fixé à sa seconde extrémité.
  10. Machine à broder selon la revendication 9, caractérisée en ce que le doigt de presseur (21) est fabriqué en un matériau déformable élastiquement, de préférence en acier pour ressorts, et que la partie du doigt de presseur (21) qui touche l'étoffe est, de préférence, revêtue de matière synthétique.
  11. Machine à broder selon l'une des revendications 1 à 10, caractérisée en ce que le presseur (13) est stationnaire.
  12. Machine à broder selon l'une des revendications 1 à 11, caractérisée en ce qu'il est prévu un bâti (72) sur lequel est placé l'entraînement pour les organes qui forment des points et que la ou les têtes à broder sont déplaçables latéralement par rapport à l'entraînement.
  13. Machine à broder selon l'une des revendications 3 à 12, caractérisée en ce que le doigt de presseur (13) est réalisé mobile axialement par rapport au poussoir de presseur (17).
  14. Machine à broder selon l'une des revendications 1 à 13, caractérisée en ce que chaque unité de presseur est entraînée par un mécanisme séparé.
  15. Machine à broder selon l'une des revendications 1 à 13, caractérisée en ce que le même arbre d'entraînement est mis en oeuvre pour l'entraînement du poussoir d'aiguille, du presseur et, de préférence, du grand guide-fil.
EP10195854A 2009-12-18 2010-12-20 Machine à broder multitête Not-in-force EP2351881B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH01970/09A CH702470A1 (de) 2009-12-18 2009-12-18 Stickmaschine, insbesondere Mehrkopf-Mehrnadel-Stickmaschine.

Publications (2)

Publication Number Publication Date
EP2351881A1 EP2351881A1 (fr) 2011-08-03
EP2351881B1 true EP2351881B1 (fr) 2012-10-31

Family

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Application Number Title Priority Date Filing Date
EP10195854A Not-in-force EP2351881B1 (fr) 2009-12-18 2010-12-20 Machine à broder multitête

Country Status (5)

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EP (1) EP2351881B1 (fr)
KR (1) KR101790644B1 (fr)
CN (1) CN102121177B (fr)
CH (1) CH702470A1 (fr)
TW (1) TWI593847B (fr)

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* Cited by examiner, † Cited by third party
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CH708496A1 (de) * 2013-08-28 2015-03-13 Lässer Ag Schiffchenstickmaschine.
CN104562490A (zh) * 2015-02-03 2015-04-29 陈展新 毛巾绣花机针杆护嘴驱动结构
JP6606929B2 (ja) 2015-09-04 2019-11-20 ブラザー工業株式会社 ミシン
CN106757884A (zh) * 2017-03-06 2017-05-31 浙江镨美科智能刺绣设备有限公司 针杆导板空间避让的绣花机机头
CN107119397A (zh) * 2017-05-27 2017-09-01 浙江信胜缝制设备有限公司 一种毛巾绣凸轮与滚子配合组合结构
CN107385713B (zh) * 2017-08-22 2023-07-14 诸暨玛雅电器机械有限公司 绣花机的独立压脚控制机构
CN108049043B (zh) * 2017-11-29 2023-08-15 诸暨市乐业机电有限公司 一种绣花机的独立雕孔装置
CN108193396A (zh) * 2018-02-06 2018-06-22 浙江信胜缝制设备有限公司 一种绣花机机头及绣花机
DE102018206088A1 (de) * 2018-04-20 2019-10-24 Dürkopp Adler AG Nähmaschine
CN110344187B (zh) * 2019-07-09 2020-11-17 安徽和邦纺织科技有限公司 一种免换梭芯自动供底线电脑刺绣装置
CN110318179A (zh) * 2019-07-25 2019-10-11 浙江镨美科智能刺绣设备有限公司 一种刺绣机的压脚高度可调节机构
CN111041725A (zh) * 2019-12-27 2020-04-21 赵海 绣花机盘带式扁带送料及针杆转动协同系统及协同方法

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FR2495651A1 (fr) * 1980-12-10 1982-06-11 Mesnil Saint Pere Sarl Broderi Tete de piquage comportant deux pieds presseurs independants, notamment pour la realisation de points bouclette, et machine a piquer ou a broder equipee de cette tete de piquage
US4461226A (en) * 1982-04-20 1984-07-24 Tokai Kogyo Mishin Kabushiki Kaisha Waiting means in an embroidering machine
JP3528251B2 (ja) * 1994-07-28 2004-05-17 アイシン精機株式会社 ミシンの布押え装置
DE19655324B4 (de) * 1995-03-14 2009-07-16 Tokai Industrial Sewing Machine Co. Ltd., Aichi Antriebseinheit für eine Kettenstich-Nähmaschine
US6823807B2 (en) * 2002-01-31 2004-11-30 Melco Industries, Inc. Computerized stitching including embroidering
JP2004057677A (ja) * 2002-07-31 2004-02-26 Nippo Sewing Mach Kk ミシン用押え金
JP2007159619A (ja) * 2005-12-09 2007-06-28 Tokai Ind Sewing Mach Co Ltd ミシン
JP2007301299A (ja) * 2006-05-15 2007-11-22 Tokai Ind Sewing Mach Co Ltd 多頭刺繍ミシン
JP2008173480A (ja) * 2007-01-18 2008-07-31 Sunstar Precision Co Ltd 刺繍ミシンの布材押え部材昇降装置
KR20080068504A (ko) * 2007-01-18 2008-07-23 썬스타 특수정밀 주식회사 자수 미싱의 옷감 누름부재 승,하강 장치
KR20080082361A (ko) * 2007-03-08 2008-09-11 썬스타 특수정밀 주식회사 자수 미싱
KR101364556B1 (ko) * 2007-05-18 2014-02-18 주식회사 썬스타 자수 미싱의 옷감 누름부재 구동 전환 구조

Also Published As

Publication number Publication date
KR101790644B1 (ko) 2017-10-26
CH702470A1 (de) 2011-06-30
CN102121177A (zh) 2011-07-13
EP2351881A1 (fr) 2011-08-03
TW201124582A (en) 2011-07-16
KR20110070821A (ko) 2011-06-24
CN102121177B (zh) 2015-11-25
TWI593847B (zh) 2017-08-01

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