WO2005021854A1 - Tete a broder pour une machine a broder - Google Patents

Tete a broder pour une machine a broder Download PDF

Info

Publication number
WO2005021854A1
WO2005021854A1 PCT/EP2004/006756 EP2004006756W WO2005021854A1 WO 2005021854 A1 WO2005021854 A1 WO 2005021854A1 EP 2004006756 W EP2004006756 W EP 2004006756W WO 2005021854 A1 WO2005021854 A1 WO 2005021854A1
Authority
WO
WIPO (PCT)
Prior art keywords
connecting rod
roller bearing
lever
embroidery
eccentric
Prior art date
Application number
PCT/EP2004/006756
Other languages
German (de)
English (en)
Inventor
Franz Willert
Uwe Junginger
Jürgen Mümmler
Jens BLÖMEKE
Johann Egbers
Manfred Kittler
Original Assignee
Ina-Schaeffler Kg
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 Ina-Schaeffler Kg filed Critical Ina-Schaeffler Kg
Publication of WO2005021854A1 publication Critical patent/WO2005021854A1/fr

Links

Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05C—EMBROIDERING; TUFTING
    • D05C11/00—Devices for guiding, feeding, handling, or treating the threads in embroidering machines; Machine needles; Operating or control mechanisms therefor
    • D05C11/02—Machine needles
    • D05C11/06—Needle-driving or control mechanisms
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05C—EMBROIDERING; TUFTING
    • D05C11/00—Devices for guiding, feeding, handling, or treating the threads in embroidering machines; Machine needles; Operating or control mechanisms therefor

Definitions

  • the invention relates to an embroidery head for an embroidery machine, in which a drive sleeve mounted on a first roller bearing in a housing is connected at one end to an eccentric ring, the eccentric ring is received on its circumferential surface by a second roller bearing, the second roller bearing by an upper one Connecting rod eye of a connecting rod is received, the lower connecting rod eye receives a bolt which is connected to a lever via a third roller bearing, so that a rotational movement of the drive sleeve via the eccentric ring is converted into an up and down movement of the lever.
  • the eccentric assembly consists of lever, eccentric, connecting rod and the corresponding bearing elements and converts the rotational movement of the drive into an up and down movement of the lever.
  • the invention is therefore based on the object of reducing the inertia and the cost of such an eccentric assembly.
  • this object is achieved according to the characterizing part of claim 1 in conjunction with its preamble in that the connecting rod is designed as a non-cutting shaped sheet metal part.
  • non-cutting means all forming processes in which the connecting rod is contoured by stretching or compressing, widening or constricting, the plastic change of shape taking place without material separation. Such methods are, for example, drawing, deep drawing, pressing, rolling and combinations of these methods.
  • this thin-walled and light connecting rod still has sufficient strength.
  • a base body of the connecting rod is enclosed on its outer circumference by an angled circumferential stiffening edge.
  • a further stiffening is made possible according to claim 3 in that the base body of the connecting rod is provided with an extension between the upper and lower connecting rod eyes.
  • the axial extension of the penetration and the axial extension of the circumferential stiffening edge are approximately approximately the same size, since an identical axial extension enables a simpler forming tool.
  • a further weight saving is evident from claim 4. Thereafter, it is provided that a bottom of the passage is provided with a recess.
  • connecting rods are assembled from two sheet metal parts. These sheet metal parts are connected to one another and in this way form a structural unit. The two parts can be connected, for example, by nesting, welding, soldering or gluing. According to a further additional feature of the invention according to claim 8, the components should be constructed identically. In the case of identical construction, there are lower tool costs and the connecting rods according to the invention can be easily produced in a cost-effective manner.
  • the eccentric ring is designed as a cutting part which forms an inner raceway for the second rolling bearing and is connected to the drive sleeve to form a one-piece component.
  • the connection can be realized by all joining methods known to the person skilled in the art, for example by an interference fit or by gluing.
  • FIG. 1 shows a perspective illustration of an eccentric assembly according to the invention
  • FIG. 2 shows a side view of the eccentric assembly
  • FIG. 3 shows a section along the line III-III in FIG. 2,
  • FIG. 3a shows a perspective illustration of a connecting rod according to the invention
  • FIG. 3b shows a side view of the connecting rod
  • FIG. 3c shows a section along the line Never - None in FIG. 3b
  • FIG. 3d shows a section through an eccentric assembly
  • FIG. 5 is a perspective view of a complete embroidery head according to the prior art Detailed description of the drawings
  • the embroidery head for an embroidery machine shown in FIG. 5 has the housing 1, which consists of the wall 2 and the cylindrical flange 3 adjoining on one side.
  • the wall 2 is provided with through holes 4 for attachment to a frame wall of the embroidery machine, not shown.
  • the drive sleeve 6, which is provided with slots 5, is arranged in the housing 1 and is rotatably held therein via the first roller bearing 7.
  • this first roller bearing 7 is designed as a sealed double-row deep groove ball bearing.
  • the drive sleeve 6 is provided with the eccentric 8, the drive sleeve 6 and eccentric 8 being designed as a one-piece casting.
  • the eccentric 8 is surrounded by the inner ring 9 of the second roller bearing 10, which is also sealed to the outside.
  • the second roller bearing 10 is designed as a single-row deep groove ball bearing, the outer raceway of which is provided by the connecting rod 11.
  • the connecting rod 11 includes the second roller bearing 10 with its upper connecting rod eye 17, while the lower connecting rod eye 18 surrounds the bolt 12.
  • the bolt 12 in turn is rotatably held in the lever 13 by a third roller bearing.
  • the fourth roller bearing 14, which is designed as a needle bearing, is pressed into the lever 13 on the left and receives a bolt in a manner not shown, which is firmly connected to the frame wall of the embroidery machine.
  • the connecting rod 11 according to the invention shown in FIGS. 3a, 3b and 3c is produced from a thin-walled sheet metal by deep drawing from a single sheet metal part.
  • the connecting rod 11 comprises the base body 15, which is enclosed on its outer circumference by the stiffening edge 16 angled by 90 °, so that a thin-walled but stable component is formed.
  • the base body 15 is connected to the upper connecting rod eye 17 and to the lower connecting rod eye 18 fitted.
  • the two connecting rod eyes 17, 18 are each provided with a cylindrical passage 19, 20 integrally formed on the base body 15, which, as explained later, accommodate the second roller bearing 10 and the third roller bearing 25.
  • a further through-position 21 is formed on the base body 15 between the two connecting rod eyes 17, 18. Conversely, this is designed trapezoidal and increases with its four side walls 22 the rigidity of the connecting rod 11 according to the invention.
  • the bottom 23 of the through-hole 21 is provided with the recess 24, which further reduces the weight of the connecting rod 11 according to the invention.
  • FIG. 1 to 4 an eccentric assembly according to the invention, consisting of lever 13, connecting rod 11, Ant ebshülse 6, eccentric 8 and the bearing elements 10, 14, 25, but without housing 1 and bearing element 7, is shown.
  • the eccentric 8 is designed as a cutting part which is press-fitted to the slotted drive sleeve 6 and forms a raceway for the rolling elements of the second rolling bearing 10 on its outer circumference.
  • the other associated raceway of the second roller bearing 10 is provided by its outer bearing ring 26, which is pressed into the upper connecting rod eye 17 of the connecting rod 11.
  • connection between the lever 13 and the connecting rod 11 according to the invention can also be seen from FIGS. 3 and 4.
  • the bolt 12 is pressed with part of its axial extent into the lever 13 at a point between its opposite ends in a receiving bore, not shown.
  • the other part of the bolt 12 is connected to the connecting rod 11 via the third roller bearing 25.
  • the third roller bearing 25 is designed as a needle bearing, its outer bearing ring 28, which is designed as a sleeve, being received by the lower connecting rod eye 18.
  • the rolling elements 27 roll on the outer surface of the bolt 12 and on the bearing outer ring 26.
  • connection between the lever 13 and the connecting rod 11 can also be made in such a way that, in reverse of the procedure, the bolt 12 is pressed into the connecting rod 11 and the third roller bearing 25 is accommodated in the lever 13.
  • the connecting rod 11 of the eccentric assembly shown in FIG. 3d is characterized in that it is composed of the two sheet metal parts 11.1, 11.2. These are mirror images of half-shells formed without cutting and their faces lie against one another on a longitudinal center plane 11.3, wherein they are connected to one another by laser welding, adhesive bonding or riveting. Each half-shell 11.1, 11.2 has the radially outward flange 11.1.1, 11.2.1 and the radially inward flange 11.1.2, 11.2.2. While the former serve to stiffen and fix the half-shells 11, 1, 11.2, the latter comprise the outer ring 26 of the third roller bearing 25.
  • the drive sleeve 6 and the eccentric 8 are in turn formed as a one-piece component.

Landscapes

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

Abstract

L'invention concerne une tête à broder destinée à une machine à broder et comprenant une bielle (11) qui relie un excentrique (8) par l'intermédiaire d'un palier à roulement (10) à un levier (13) par l'intermédiaire d'un autre palier à roulement (25). Un mouvement de rotation de l'excentrique (8) est converti en un mouvement de montée et de descente du levier (13). Selon l'invention, la bielle (11) est réalisée en tant qu'élément de tôle formé sans enlèvement de copeaux, un corps de base (15) étant entouré sur sa périphérie extérieure par un bord de renfort périphérique coudé (16). La bielle (11) peut ainsi être fabriquée de manière simple et présente un faible moment d'inertie.
PCT/EP2004/006756 2003-07-30 2004-06-23 Tete a broder pour une machine a broder WO2005021854A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003134839 DE10334839A1 (de) 2003-07-30 2003-07-30 Stickkopf für eine Stickmaschine
DE10334839.5 2003-07-30

Publications (1)

Publication Number Publication Date
WO2005021854A1 true WO2005021854A1 (fr) 2005-03-10

Family

ID=34111752

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/006756 WO2005021854A1 (fr) 2003-07-30 2004-06-23 Tete a broder pour une machine a broder

Country Status (2)

Country Link
DE (1) DE10334839A1 (fr)
WO (1) WO2005021854A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103883608B (zh) * 2014-03-05 2016-08-24 宁波市镇海博深轴承厂 电脑多头绣花机大连杆轴承
CN103911775A (zh) * 2014-03-24 2014-07-09 浙江博盟精工机械有限公司 一种带平衡装置的电脑绣花机针杆凸轮机构
CH714642A1 (de) * 2018-02-13 2019-08-15 Laesser Ag Schiffchenstickmaschine.

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE384292C (de) * 1921-09-04 1923-10-29 Vogtlaendische Maschinenfabrik Vorrichtung fuer den Antrieb der Nadellineale von Schiffchenstickmaschinen
US5839381A (en) * 1996-06-13 1998-11-24 S & W Engineering Gmbh Embroidering machine having first-order mass compensation
FR2765503A1 (fr) * 1997-07-03 1999-01-08 Hutchinson Procede de fabrication d'une biellette antivibratoire de suspension ; biellette obtenue par ce procede
DE10050820A1 (de) * 2000-10-13 2002-05-02 Ina Schaeffler Kg Hebelartiger Nockenfolger
US20020068153A1 (en) * 2000-11-30 2002-06-06 Walter Speil Method of making a lever-type cam follower
US20030037637A1 (en) * 2001-08-24 2003-02-27 Stefan Jager Connecting rod of a crank mechanism
DE10155828A1 (de) * 2001-11-14 2003-05-22 Ina Schaeffler Kg Schlepphebel eines Ventiltriebs einer Brennkraftmaschine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3819389A1 (de) * 1988-06-07 1989-12-14 Niko Entwicklungs Ag Arbeitsverfahren fuer stick- und naehmaschinen
JPH0246887A (ja) * 1988-08-10 1990-02-16 Iida Shintaro 平針の周方向位置の制御機構を有する皮革または同様な被加工物の縫製用ミシンとこのミシンを用いて縫う方法
DE4209914A1 (de) * 1992-03-27 1993-09-30 Schaeffler Waelzlager Kg Spannvorrichtung für Riemen oder Ketten
DE10203266A1 (de) * 2002-01-29 2003-07-31 Ina Schaeffler Kg Pleuel

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE384292C (de) * 1921-09-04 1923-10-29 Vogtlaendische Maschinenfabrik Vorrichtung fuer den Antrieb der Nadellineale von Schiffchenstickmaschinen
US5839381A (en) * 1996-06-13 1998-11-24 S & W Engineering Gmbh Embroidering machine having first-order mass compensation
FR2765503A1 (fr) * 1997-07-03 1999-01-08 Hutchinson Procede de fabrication d'une biellette antivibratoire de suspension ; biellette obtenue par ce procede
DE10050820A1 (de) * 2000-10-13 2002-05-02 Ina Schaeffler Kg Hebelartiger Nockenfolger
US20020068153A1 (en) * 2000-11-30 2002-06-06 Walter Speil Method of making a lever-type cam follower
US20030037637A1 (en) * 2001-08-24 2003-02-27 Stefan Jager Connecting rod of a crank mechanism
DE10155828A1 (de) * 2001-11-14 2003-05-22 Ina Schaeffler Kg Schlepphebel eines Ventiltriebs einer Brennkraftmaschine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
INA-SCHAEFFLER KG: "Eccentric drive in embroidery head", INA PRESSE OFFICE, 2 May 1999 (1999-05-02), HERZOGENAURACH, pages 24, XP002301480 *

Also Published As

Publication number Publication date
DE10334839A1 (de) 2005-03-03

Similar Documents

Publication Publication Date Title
DE10305407B4 (de) Getriebebeschlag für einen Fahrzeugsitz
DE10327103B4 (de) Untersetzungsgetriebe, insbesondere für eine Verstellvorrichtung eines Kraftfahrzeugsitzes
EP1738081B1 (fr) Moteur oscillant radial et procede de production de ce moteur
DE3126192C2 (fr)
WO2007065749A1 (fr) Systeme de montage pour moteur electrique
DE3214231A1 (de) Spannrolle fuer riementriebe
EP1835199B1 (fr) Tuyau de jambe de force en tôle laminée flexible
DE102006038818A1 (de) Doppelwandiges Joch und Verfahren zu dessen Herstellung
DE102006005906A1 (de) Getriebestufe
DE2902429A1 (de) Antriebsbaueinheit
DE102004054186B3 (de) Kompressor-Kurbelwelle
DE10309407A1 (de) Schaltgabel mit einem gabelförmigen Grundkörper aus Blech
DE10141653B4 (de) Pleuelstange eines Kurbeltriebs
WO2005021854A1 (fr) Tete a broder pour une machine a broder
DE102014217396A1 (de) Belastungsoptimiertes asymmetrisches Planetenträgerdesign
DE19931018C5 (de) Kraftfahrzeug-Radträger
DE29802228U1 (de) Lagerschild
DE3412169C1 (de) Spannrolleneinheit
DE19844991A1 (de) Pleuel, insbesondere für einen Verbrennungsmotor mit Doppelkurbeltrieb
EP3540266B1 (fr) Roue dentée ainsi qu'un élément denté pour une transmission à éléments dentés ainsi que transmission à éléments dentés correspondante
DE102020113361A1 (de) Gehäuse zur Aufnahme des Getriebes eines Kegelraddifferentials und Kegelraddifferential
DE19963481A1 (de) Aus einem Blech geformtes Exenterstück
BE1030972B1 (de) Verfahren zur Herstellung einer Verbindung zwischen einer Welle und einer Gelenkgabel eines Lenksystems für ein Kraftfahrzeug und Lenksystem für ein Kraftfahrzeug
DE102018119249A1 (de) Planetenträger mit Tragabschnitten und Verbindungsstegen
DE102018101740A1 (de) Planetenträger mit Tragabschnitten und diese verbindenden Verbindungselementen; sowie Planetengetriebe

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase