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DE608619C - Method of manufacturing knitting machine needles - Google Patents

Method of manufacturing knitting machine needles

Info

Publication number
DE608619C
DE608619C DET39182D DET0039182D DE608619C DE 608619 C DE608619 C DE 608619C DE T39182 D DET39182 D DE T39182D DE T0039182 D DET0039182 D DE T0039182D DE 608619 C DE608619 C DE 608619C
Authority
DE
Germany
Prior art keywords
tongue
needle
knitting machine
stage
machine 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
DET39182D
Other languages
German (de)
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.)
Timken US LLC
Original Assignee
Torrington Co
Publication date
Priority to DET39182D priority Critical patent/DE608619C/en
Application granted granted Critical
Publication of DE608619C publication Critical patent/DE608619C/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21GMAKING NEEDLES, PINS OR NAILS OF METAL
    • B21G1/00Making needles used for performing operations
    • B21G1/02Making needles used for performing operations of needles with eyes, e.g. sewing-needles, sewing-awls
    • B21G1/04Making needles used for performing operations of needles with eyes, e.g. sewing-needles, sewing-awls of needles specially adapted for use in machines or tools

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Knitting Machines (AREA)

Description

Verfahren zur Herstellung von Strickmaschinennadeln Bei der Herstellung von Strickmaschiraiinadeln hat man den Drehzapfen der 1 adelzunge u. a. dadurch gebildet, daß mit einem Stempel, dessen Querschnitt kleiner ist" als derjenige der Zungenbohrung, Werkstoff aus den beiden Nadelwangen in die Zuugenboli-. rung verdrängt wird, bis sie ganz mit verdrängtem Werkstoff ausgefüllt ist, wodurch ein Bolzen entsteht, auf dem die schwingende Zunge rundum dicht aufsitzt.Method of making knitting machine needles During manufacture of knitting machirai needles one has the pivot of the 1 needle tongue u. through this formed that with a punch whose cross section is smaller "than that of the Tongue hole, material from the two needle cheeks in the Zuugenboli-. displaced until it is completely filled with displaced material, creating a bolt arises on which the swinging tongue sits tightly all around.

Damit nicht, wie bisher, bei der Verdrängung des Werkstoffes in die Zungenbohrung viel Ausschuß durch Reißen der sehr dünnen Nadeln und Zungen entsteht, regelt die Erfindung den Vorgang dieser Verdrängung üi besonderer Weise, und zwar dadurch, daß die Verdrängung mit einem an sich bekannten zweistufigen Stempel ausgeführt wird, dessen Abstufung .erfindungsgemäß so gewählt ist, daß der Querschnitt der ersten Stufe kleiner und derjenige der zweiten Stufe größer als die Zungenbohrung ist.So not, as before, with the displacement of the material into the Tongue drilling a lot of scrap is created by tearing the very thin needles and tongues, the invention regulates the process of this repression in a special way, namely in that the displacement is carried out with a known two-stage punch is, the gradation .invention is chosen so that the cross-section of the first stage smaller and that of the second stage larger than the tongue hole is.

Auf der Zeichnung sind Ausführungsbeispiele dargestellt, in Fig. leine Zungennadel in Ansicht, Fig. 2, 3 und 4 eine Nadel nebst Zunge in drei Hauptstadien der Herstellung des Zungendrehzapfens, Fig. 5 die beiden Preßstempel.In the drawing, exemplary embodiments are shown, in Fig. Leine Latch needle in view, FIGS. 2, 3 and 4 show a needle and tongue in three main stages the manufacture of the tongue pivot pin, Fig. 5 the two press rams.

Das Verdrängen des Werkstoffes in. die Zungenbohrung mit der oben angegebenen vorteilhaften Folge wird mittels der in Fig. 5 dargestellten beiden Preßstempel 1 4. ausgeführt.The displacement of the material in. The tongue hole with the above indicated advantageous consequence is by means of the two shown in FIG Press ram 1 4th executed.

Die beiden Preßstempel14 sind zweistufig. Sie endigen je in einen Dorn 15, dessen Querschnitt kleiner ist als.die Bohrung 3 der Zunge i. Der Dorn 15 sitzt auf einer konvexen Preßfläche 16, deren Querschnitt größer ist als die Zungenbohrung 3.The two press rams14 are two-stage. They each end in a mandrel 15, the cross section of which is smaller than.die hole 3 of the tongue i. The mandrel 15 sits on a convex pressing surface 16, the cross section of which is larger than the tongue bore 3.

Die Preßstempel 14 werden -' mit ihren Dornen 15 von außen beiderseits an die Wangen der Nadel 2 in der Höhe, in der sich die Bohrung 3 der im Nadelschlitz an iluen Platz ebrachten Zunge i befindet, angesetzt. Bei Beginn der durch die zueinander hin vordriügenden Stempel 14 auf die -Tadel ausgeübten Pressung verdrängen die Dorne 15 an den Stellen 6 und 7 Metall der Nade12 in die Zungenbohrung 3. Alsdann setzen sich die Stempel mit ihren konvexen Schultern 16 auf die die Eindrückungen umgebenden Stellen der Nadelwangen und schieben diejenigen Mengen des von. den Dornren verdrängten M etalles, die nach außen entweichen wollen, zur Seite, so daß die Entstehung einer Ringwulst an jenen NadelwangenstdIen unterbleibt und -ferner auch eine übermäßige lilemmung der Zunge i -in Richtung ihrer Drehachse vermieden wird.The ram 14 are - 'with their thorns 15 from the outside on both sides on the cheeks of the needle 2 at the level at which the bore 3 of the needle slot is located in the new place of the tongue i is attached. At the beginning of the through to each other towards the pushing punch 14 on the -pin exerted pressure displace the mandrels 15 at points 6 and 7 metal of the needle12 in the tongue hole 3. Then put it the stamps with their convex shoulders 16 on those surrounding the indentations Make the needle cheeks and push those amounts of the from. displaced the thorn M etalles that want to escape to the outside, to the side, so that the emergence of a There is no ring bead on those needle cheek joints and there is also an excessive one Limitation of the tongue in the direction of its axis of rotation is avoided.

Auf diese Weise werden zwei Zapfen 4. und 5 gebildet, die das Zungenloch 3 vollständig ausfüllen 'und somit zusammen einen dicht an der Zunge i anliegenden Drehzapfen bilden.In this way two pegs 4 and 5 are formed, which form the tongue hole 3 fill in completely 'and thus together a tight fit on the tongue i Form trunnions.

Claims (2)

PATENTANSPRÜCHE: i. Verfahren zur Herstellung von Strickmaschinennadeln, bei welchen der Drehzapfen der Nadelzunge dadurch gebildet wird, daß mit einem Stempel, dessen Querschnitt kleiner als derjenige der Zungenbohrung ist, Werkstoff aus den beiden -Nadelwangen in die Zungeribohrung verdrängt wird, bis die ganze Zungenbohrung mit verdrängtem Werkstoff ausgefüllt ist, dadurch gekennzeichnet, daß die Verdrängung mit einem an sich bekannten zweistufigen Stempel (14), dessen Querschnitt in der zweiten Stufe (16) größer als die Zungenbohrung (3) ist, ausgeführt wird. PATENT CLAIMS: i. Process for the production of knitting machine needles, in which the pivot of the needle tongue is formed in that with a punch, whose cross-section is smaller than that of the tongue hole, material from the Both needle cheeks are displaced into the tongue bore until the entire tongue bore is filled with displaced material, characterized in that the displacement with a known two-stage punch (14), the cross section of which in the second stage (16) is larger than the tongue hole (3) is executed. 2. Preßstempel zur Ausführung des Verfahrens nach Anspruch i, dadurch gekennzeichnet, daß die Preßfläche der zweiten Stufe (16) eine konvexe Fläche ist.2. Press ram for carrying out the method according to claim i, characterized in that the pressing surface of the second stage (16) is a convex surface.
DET39182D Method of manufacturing knitting machine needles Expired DE608619C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DET39182D DE608619C (en) Method of manufacturing knitting machine needles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET39182D DE608619C (en) Method of manufacturing knitting machine needles

Publications (1)

Publication Number Publication Date
DE608619C true DE608619C (en) 1935-01-28

Family

ID=7560414

Family Applications (1)

Application Number Title Priority Date Filing Date
DET39182D Expired DE608619C (en) Method of manufacturing knitting machine needles

Country Status (1)

Country Link
DE (1) DE608619C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3600620C1 (en) * 1986-01-11 1987-02-12 Theodor Groz & Soehne & Ernst Beckert Nadelfabrik Kg, 7470 Albstadt, De
DE19914928A1 (en) * 1999-04-01 2000-10-05 Groz Beckert Kg Latch needle for a knitter has a structured recess with a further recess in the base at the outer zone to give the needle a durably reliable operating function

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3600620C1 (en) * 1986-01-11 1987-02-12 Theodor Groz & Soehne & Ernst Beckert Nadelfabrik Kg, 7470 Albstadt, De
US4747277A (en) * 1986-01-11 1988-05-31 Theodor Groz & Sohne & Ernst Beckert Nadelfabrik Commandit-Gesellschaft Latch needle for a textile machine
DE19914928A1 (en) * 1999-04-01 2000-10-05 Groz Beckert Kg Latch needle for a knitter has a structured recess with a further recess in the base at the outer zone to give the needle a durably reliable operating function
EP1048770A1 (en) * 1999-04-01 2000-11-02 Groz-Beckert KG Latch needle with a latch mounted on a pivot bearing
US6209360B1 (en) 1999-04-01 2001-04-03 Groz Beckert Kg Latch needle having a latch supported on a pin
DE19914928C2 (en) * 1999-04-01 2001-05-23 Groz Beckert Kg Latch needle with a tongue supported on a pin

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