EP0193625B1 - Machine à broder à navettes - Google Patents

Machine à broder à navettes Download PDF

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Publication number
EP0193625B1
EP0193625B1 EP85102372A EP85102372A EP0193625B1 EP 0193625 B1 EP0193625 B1 EP 0193625B1 EP 85102372 A EP85102372 A EP 85102372A EP 85102372 A EP85102372 A EP 85102372A EP 0193625 B1 EP0193625 B1 EP 0193625B1
Authority
EP
European Patent Office
Prior art keywords
movement
needle
embroidery
shuttle
needles
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP85102372A
Other languages
German (de)
English (en)
Other versions
EP0193625A1 (fr
Inventor
Josef Bonnen
Hans Conrads
Rolf Stevens
Rolf Strucks
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MOTEMA Textilmaschinen GmbH
Original Assignee
MOTEMA Textilmaschinen GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MOTEMA Textilmaschinen GmbH filed Critical MOTEMA Textilmaschinen GmbH
Priority to DE8585102372T priority Critical patent/DE3564829D1/de
Priority to EP85102372A priority patent/EP0193625B1/fr
Priority to AT85102372T priority patent/ATE37051T1/de
Priority to CH2662/85A priority patent/CH669414A5/de
Publication of EP0193625A1 publication Critical patent/EP0193625A1/fr
Application granted granted Critical
Publication of EP0193625B1 publication Critical patent/EP0193625B1/fr
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05C—EMBROIDERING; TUFTING
    • D05C3/00—General types of embroidering machines
    • D05C3/04—General types of embroidering machines with horizontal needles

Definitions

  • the invention relates to a shuttle embroidery machine with a plurality of embroidery needles arranged in at least one row on a common needle ruler or on individually displaceable needle bars of a common needle bar carrier, each of which has an embroidery material arranged on the opposite side of the embroidery frame and depending on the needle movement
  • Driven shuttle for the rear thread and at least one thread feeder which causes the feed of the front thread to the respective needle and is also driven as a function of the needle movement are assigned, the sequence of movements of the shuttle moving back and forth in shuttle guides by driver pins arranged on a common driver bar and the sequence of movements the thread take-up is different from each other and from the needle movement.
  • the different movement sequences for the needles, shuttle and thread feeder are derived from the central main shaft of the shuttle machine via different cam mechanisms.
  • the control cams are cams on which cam rollers roll and transmit the drive movement to the needles, the shuttle and the thread take-up via intermediate gears.
  • Roller switches are used to switch the cam gear on and off, which are operated mechanically or electro-pneumatically.
  • cam gear By using such cam gear, the motion sequences for the needles, shuttle and thread take-up are fixed in the respective cam. It is possible and necessary for the assembly of shuttle embroidery machines to change or adjust the temporal assignment of the movement sequences for the needles, shuttle and thread feeder by adjusting the cam disc. An adaptation to different embroidery programs is not provided, however, or can only be carried out with great expenditure of time by adjusting the cams to one another.
  • the known cam disk drives on shuttle embroidery machines have the disadvantage that their relatively large masses prevent an increase in the speed of the shuttle embroidery machine.
  • the roller shifts also limit the machine speed and, moreover, usually require speed reductions during the switching operations.
  • the cam disk gearboxes not only require a large amount of machine elements, but also a high level of maintenance and repair work. After all, they contribute to the fact that the sound level of a shuttle embroidery machine is very high.
  • the invention has for its object to develop a shuttle embroidery machine of the type described in such a way that a considerable increase in performance of the machine can be achieved with a simultaneous reduction in the design and maintenance effort and the noise level.
  • the solution to this problem by the invention is characterized in that a separate drive motor is arranged for the drive of the needles, the driver bar of the shuttle and for the thread take-up, the right and left rotating drive movement of the required sequence of movements for the needles or shuttle or thread take-up is adjusted and can be changed by a central control unit in accordance with the respective embroidery program, both with regard to its own movement sequence and in relation to the movement sequences of the other motors.
  • a separate drive motor can also be provided for the drills with a drive movement which is clockwise and counterclockwise and which is adapted to the axial movement sequence of the drills including depth adjustment.
  • the movement of the drills belonging to the pattern-forming elements can also be adapted to the respective embroidery program.
  • motors for driving the needles ship Chen, thread take-up and optionally drill are used according to the invention highly dynamic, electronically controlled electric motors, such as stepper motors, DC motors or permanently excited AC and three-phase motors.
  • the electric motors are controlled by a computer.
  • the motor drives the shaft to be driven in each case for driving the needles, shuttle, thread take-up or drill either directly or with the interposition of a transmission gear. Furthermore, it is possible to arrange a common motor for the movement of the needles and drills, including drill depth adjustment.
  • FIG. 1 shows a partial view of the control side of a two-day shuttle embroidery machine of known type, which has a main machine shaft 1 driven by a motor, not shown, from which the movements for the needles, shuttle, thread take-up and drill are derived.
  • several cams 2 are attached to this main machine shaft 1.
  • the sequence of movements is determined by the shape of these cam disks 2 and the type of the downstream transmission.
  • the assignment of the cams 2 to each other results in the assignment of the different movements.
  • both the sequence of movements as such and its assignment to the other sequences of movements are defined.
  • a change is only possible either by exchanging cams 2 or by rotating the cams 2 relative to one another on the machine main shaft 1.
  • FIG. 2 and 3 the cam mechanism for the needle movement is shown.
  • the drawings show the machine main shaft 1 with the cam disk 2a for the needle drive. The movement is taken off by two cam rollers 3, which are rotatably mounted on a roller lever 4. This roller lever 4 is pivotally mounted on an axis 5 which is arranged on the frame of the shuttle embroidery machine.
  • the upper cam roller 3 is slidably mounted on a roller pin 4a arranged on the roller lever 4, so that it can be moved from the cam disc 2a to an adjacent, circular cam disc 6.
  • no more pivoting movement is exerted on the roller lever 4.
  • the top view according to FIG. 3 drawn according to the section line 111-111 in FIG. 3 shows an embodiment in which the displacement of the upper cam roller on the roller pin 4a is carried out by a shift fork 7, which is guided on an extension of the axis 5a and by a Air cylinder 8 is operated.
  • a connecting rod 9 is articulated on the roller lever 4, which in turn engages a drive lever 10 which is arranged on a needle shaft 11 in a rotationally fixed manner.
  • This needle shaft 11 runs over the entire length the shuttle embroidery machine and in turn carries a plurality of needle levers 12 which are connected to a so-called needle ruler 14 by means of fixed push rods 13.
  • the needle ruler 14 in turn runs over the entire length of the shuttle embroidery machine and carries all the embroidery needles 15 arranged in an embroidery story.
  • Each of the embroidery needles 15 is provided with a front thread V, which is inserted into the fabric S with the aid of the embroidery needles 15.
  • this front thread V is fed by a large thread feeder 16 and a small thread feeder 17, the drive of which will be described later.
  • the front thread V is linked with a rear thread, which is arranged in a boat 18. The drive of the shuttle 18 is described below.
  • FIG. 4 shows this drive of the shuttle 18 in a known shuttle embroidery machine.
  • the illustration shows the cam disk transmission, which comprises a cam disk 2b fastened on the machine main shaft 1.
  • the drive movement is in turn derived from this cam disc 2b via two cam rollers 19 which are rotatably mounted on a roller lever 20 which in turn is arranged on an axis 21 fixed to the frame.
  • the pivoting movement of the roller lever 20 is transmitted through a connecting rod 22 and a link lever 23 to a shuttle shaft 24 which is rotatably mounted on the frame of the shuttle embroidery machine.
  • the back and forth movement of this shuttle shaft 24 is transmitted via drive lever 25 and connecting rod 26 to a driver bar 27, which thus carries out an up and down movement in accordance with the design of the cam plate 2b.
  • the movement sequence on the embroidery needles 15 is plotted in the upper part over one revolution of the machine main shaft 1.
  • the sequence of movements as the shuttle 18 is shown.
  • the illustrations show that the two sequences of movements on and as are different due to the different design of the cam disk gear enclosing the cam disk 2a or 2b, but have a specific correlation to one another.
  • the shuttle 18 moved by the driver pins 28 these are pushed through the loops of the front thread V formed on the back of the fabric S, so that a link is established between the respective front thread V and the rear thread arranged in the shuttle 18.
  • the rear gate cannot be seen on the drawing.
  • Fig. 6 the cam mechanism for driving the two thread transmitters 16 and 17 is shown in a known shuttle embroidery machine.
  • the drive movement is derived from the machine main shaft 1 via cam disks 2c and 2d.
  • Cam rollers 30, which are arranged on a roller lever 31, whose pivoting movement is transmitted via a plurality of articulated levers 32 to a thread take-up shaft 33, run on the cam disc 2c.
  • This thread feeder shaft 33 which extends over the entire length of the shuttle embroidery machine, carries a plurality of large thread feeders 16 which are connected to one another by rods 16a, over which the front threads V are guided.
  • the front threads V continue to run over rods 17 a, which connect the free end of the small thread feeder 17.
  • These thread take-up devices 17 are also firmly seated on a thread take-up shaft 34 which executes a back-and-forth movement. This movement is generated by the cam disc 2d, on which a cam roller 35 rolls, which is arranged on a roller lever 36 which drives the thread take-up shaft 34 with the small thread take-ups 17 via two articulated levers 37.
  • the back and forth movement of the thread transmitter shafts 33 and 34 and thus the pivoting movement of the small and large thread transmitters 16 and 17 is predetermined by the shape of the cams 2c and 2d and the downstream cam mechanism and coordinated with the movements of the embroidery needles 15. The movement sequences can only be changed by replacing the cams 2c and 2d.
  • FIG. 7 finally shows the cam mechanism of a known shuttle embroidery machine for the movement of drills 38 which are arranged below the embroidery needles 15 on a drill ruler 39 which is movable parallel to the needle ruler 14.
  • the movement takes place by means of a plurality of thrust cranks 40 which are arranged on a continuous drill shaft 41 distributed over the length.
  • This drill shaft 41 is driven back and forth by a cam disc 2e arranged on the main machine shaft 1, on which a cam roller 42 runs, which acts on the drill shaft 41 via an articulated lever system 43 - with stroke adjustment for different drilling depths.
  • the movement of the drills 38 can be switched on and off via a roller switching mechanism 44 which, if necessary, shifts the cam roller 42 between the cam plate 2e and a circular cam plate 45 as a rest curve.
  • FIG. 8 shows an exemplary embodiment of a drive according to the invention for the embroidery needles 15 arranged on a needle ruler 14.
  • the Madellineal 14 is in turn driven by the reciprocating movement of a needle shaft 11 via needle levers 12 and push rods 13.
  • a highly dynamic, electronically controlled electric motor 46 is flanged directly onto the needle shaft 11.
  • the required sequence of movements for the embroidery needles 15 is generated by a corresponding drive movement of the electric motor 46, which is controlled electronically for this purpose, preferably using a computer.
  • a stepper motor, DC motor or permanently excited AC or three-phase motor can be used as the electric motor 46.
  • FIGS. 8 and 2 show that almost all of the mechanics are dispensed with in the embodiment according to the invention.
  • the needle shaft 11 can also be driven by the electric motor 46 with the interposition of a gear 46a.
  • the shuttle 18 guided in shuttle guides 29 is likewise driven by its own electric motor 47.
  • This electronically controlled electric motor 47 is flanged directly to the shuttle shaft 24 and generates a reciprocating movement of this shuttle shaft 24 in accordance with the respective movement sequence.
  • the rotary movement of the shuttle port 24 is transmitted in a known manner via drive lever 25 and connecting rod 26 to the driver bar 27, which takes the shuttle 18 with it via driver pins 28.
  • the sequence of movements of the shuttle 18 can be varied, as can the assignment of the shuttle movement to the movement of the embroidery needles 15, depending on the particular embroidery program.
  • Such a change in the movement sequence and change in the assignment is also possible in an alternative embodiment for the shuttle drive according to FIG. 13.
  • the electric motor 47 is not flanged directly to the shuttle shaft 24, but is connected to this shuttle shaft 24 via a gear 47a.
  • FIG. 10 shows an embodiment of a drive according to the invention for feeding the front thread V.
  • the previous small thread feeder has been replaced by a thread deflector 17b which is fixed to the frame and around which the front thread V is guided.
  • the drive movement for feeding the front thread V is carried out exclusively by the large thread take-up device 16, which is fastened together with other thread take-up devices 16 on the thread take-up shaft 33 and carries a continuous rod 16 a.
  • the thread take-up shaft 33 is driven back and forth by an electric motor 48. Since this highly dynamic and electronically controlled electric motor 48 can carry out a superimposed movement characteristic for the feed of the front thread V, which required a large and a small thread take-up in the known mechanical gearboxes, in the embodiment according to the invention according to FIG.
  • a second (small) thread take-up can be used to be dispensed with.
  • FIG. 14 when the thread take-up shaft 33 is driven, there is also the possibility not to flange the electric motor 48 directly onto the thread take-up shaft 33, but to interpose a gear 48 a according to the alternative in FIG. 14.
  • FIG. 11 and 15 finally show two alternative embodiments for a drive according to the invention of the drills 38 arranged on a drill ruler 39.
  • the drill ruler 39 is driven by pushing cranks 40 from a reciprocating drill shaft 41.
  • this drill shaft 41 is driven by a directly flanged electric motor 49 in accordance with the desired sequence of movements
  • the alternative embodiment according to FIG. 15 shows that a gear 49a is interposed between the electric motor 49 and the drill shaft 41.
  • the electric motor 49 not only executes the movement sequence, but at the same time also adjusts the drilling depth.
  • FIGS. 8 to 15 A comparison of the embodiments according to the invention according to FIGS. 8 to 15 with the prior art described at the outset and shown in FIGS. 1 to 7 shows that the construction effort for driving the embroidery needles 15, the shuttle 18, the Thread feeder 16 and 17 and the drill 38 are considerably reduced and at the same time the noise of the shuttle embroidery machine is reduced.
  • the possibility is created for the first time to change the respective movement sequences of the embroidery needles 15, shuttle 18, thread feeder 16 and 17 and drill 38 depending on the respective embroidery program, both in their own characteristics and in their assignment to the other movement sequences, because these movement sequences are stitch and pattern-forming elements of electronically controlled electro motors are running.
  • a ⁇ significant increase in machine speed is thus achieved, since not only lower-mass and considerably more spontaneously reacting drives are used, but previously inevitable dead times are avoided by adapting the movement sequences to the respective embroidery program.

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

Claims (8)

1. Machine à broder à navette comportant une multitude d'aiguilles à broder dont une rangée au moins est disposée sur une ligne d'aiguilles commune ou sur des barres à aiguilles pourvues de mobilité individuelle sur un support commun de barres à aiguilles auxquelles sont respectivement affectés une navette pour le fil arrière disposée en regard de la matière à broder fixée sur un cadre et entraînée en fonction du mouvement de l'aiguille, ainsi qu'au moins un releveur (distributeur) de fils, qui effectue l'amenée du fil avant à l'aiguille et est égalemeht entraîné en fonction du déplacement du fil, sur laquelle le déplacement de la navette par des broches de poussée disposées sur une poutre de poussée commune s'effectue différemment du déplacement des releveurs de fil et du déplacement des aiguilles, caractérisé en ce que il est respectivement disposé pour l'entraînement des aiguilles à broder (15), de la poutre de poussée (27), de la navette (18) et pour les releveurs de fil (16, 17) un moteur individuel d'entraînement (46, 47, 48), dont le mouvement rotatif d'entraînement vers la droite et vers la gauche est associé au déplacement requis pour les aiguilles à broder (15), ou les navettes (18) ou les releveurs de fil (16, 17) dont l'exécution du mouvement peut être modifiée en soi ainsi que par rapport au mouvement des autres moteurs par une unité centrale de commande.
2. Machine à broder a navette selon la revendication 1, avec des perçoirs disposés parallèlement aux aiguilles, caractérisée en ce qu'il est également prévu pour les perçoirs (38) un moteur individuel d'entraînement (49), dont le mouvement rotatif d'entraînement vers la droite et vers la gauche est adapté au déplacement axial des perçoirs (38), y compris leur déplacement en profondeur.
3. Machine à broder à navette selon l'une quelconque des revendications 1 ou 3, caractérisée en ce qu'on utilise comme moteurs des moteurs électriques (46, 47, 48, 49) très dynamiques à commande électronique.
4. Machine à broder à navette selon la revendication 3, caractérisée en ce que les moteurs électriques (46, 47, 48, 49) sont commandés par un calculateur.
5. Machine à broder à navette selon au moins une des revendications 1 à 4, caractérisée en ce que les moteurs électriques (46, 47, 48, 49) entraînent directement les arbres d'entraînement (11, 24, 33, 41) qui entraînent respectivement les aiguilles à broder (15), la navette (18), les releveurs de fil (16, 17) et le perçoir (38).
6. Machine à broder à navette selon au moins une des revendications 1 a 4, caractérisée en ce que les moteurs (46,47,48,49) entraînent respectivement les arbres (11, 24, 33, 41) qui entraînent les aiguilles à broder (15), la navette (18), les releveurs de fil (16,17) et le perçoir (3S) au moyen d'engrenages (46a, 47a, 48a, 49a).
7. Machine à broder à navette selon au moins une des revendications 1 à 6, caractérisée en ce qu'il est disposé un moteur commun pour l'exécution des déplacements des aiguilles à broder (15) et du perçoir (18) - y compris pour le déplacement en profondeur du perçoir.
8. Machine à broder à navette selon au moins une des revendications 1 à 7, caractérisée en ce qu'il est affecté à chaque aiguille à broder un grand et un petit releveurs de fil (distributeurs) qui sont chacun entraînés par un moteur séparé.
EP85102372A 1985-03-02 1985-03-02 Machine à broder à navettes Expired EP0193625B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE8585102372T DE3564829D1 (en) 1985-03-02 1985-03-02 Embroidering machine with shuttles
EP85102372A EP0193625B1 (fr) 1985-03-02 1985-03-02 Machine à broder à navettes
AT85102372T ATE37051T1 (de) 1985-03-02 1985-03-02 Schiffchenstickmaschine.
CH2662/85A CH669414A5 (fr) 1985-03-02 1985-06-21

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP85102372A EP0193625B1 (fr) 1985-03-02 1985-03-02 Machine à broder à navettes

Publications (2)

Publication Number Publication Date
EP0193625A1 EP0193625A1 (fr) 1986-09-10
EP0193625B1 true EP0193625B1 (fr) 1988-09-07

Family

ID=8193337

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85102372A Expired EP0193625B1 (fr) 1985-03-02 1985-03-02 Machine à broder à navettes

Country Status (4)

Country Link
EP (1) EP0193625B1 (fr)
AT (1) ATE37051T1 (fr)
CH (1) CH669414A5 (fr)
DE (1) DE3564829D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4241200A1 (de) * 1992-12-08 1994-06-09 Saurer Sticksysteme Ag Arbon Stickmaschine mit Mitten-Antrieb

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63120157A (ja) * 1986-11-06 1988-05-24 平岡工業株式会社 レ−ス刺しゆう機
DE4403365A1 (de) * 1994-02-04 1995-08-10 Saurer Sticksysteme Ag Verfahren und Vorrichtung zum Sticken auf einer Schiffchen-Stickmaschine
DE102005058520A1 (de) * 2005-12-08 2007-06-14 Saurer Hamel Ag Verfahren zum Betrieb mehrerer Strickmaschinen und Vorrichtung zur Durchführung
DE102008019467B4 (de) * 2008-04-18 2012-01-19 Oerlikon Saurer Arbon Ag Verfahren zum Betrieb einer Stickmaschine mit schlaufenformenden Element und Stickmaschine nach dem Verfahren
DE102008035434B4 (de) * 2008-07-29 2015-02-05 Saurer Ag Stoffdrücker einer Stickmaschine
DE102010021336B4 (de) 2010-05-22 2014-05-15 Saurer Ag Stickmaschine mit einem Gestell und Antrieben

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3222716C2 (de) * 1982-06-14 1986-02-27 Ortwein, Heinz, Dipl.-Ing., 1000 Berlin Nähvorrichtung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4241200A1 (de) * 1992-12-08 1994-06-09 Saurer Sticksysteme Ag Arbon Stickmaschine mit Mitten-Antrieb

Also Published As

Publication number Publication date
ATE37051T1 (de) 1988-09-15
EP0193625A1 (fr) 1986-09-10
DE3564829D1 (en) 1988-10-13
CH669414A5 (fr) 1989-03-15

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