EP0144598A1 - Needle bed for a circular knitting machine - Google Patents

Needle bed for a circular knitting machine Download PDF

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Publication number
EP0144598A1
EP0144598A1 EP84111836A EP84111836A EP0144598A1 EP 0144598 A1 EP0144598 A1 EP 0144598A1 EP 84111836 A EP84111836 A EP 84111836A EP 84111836 A EP84111836 A EP 84111836A EP 0144598 A1 EP0144598 A1 EP 0144598A1
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EP
European Patent Office
Prior art keywords
needle bed
cylinder
segments
webs
knitting
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.)
Granted
Application number
EP84111836A
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German (de)
French (fr)
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EP0144598B1 (en
Inventor
Stefan Krall
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.)
Cambio Ragione Sociale saxonia Umformtechnik GmbH
Original Assignee
Saxonia Franke GmbH and Co
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Filing date
Publication date
Application filed by Saxonia Franke GmbH and Co filed Critical Saxonia Franke GmbH and Co
Publication of EP0144598A1 publication Critical patent/EP0144598A1/en
Application granted granted Critical
Publication of EP0144598B1 publication Critical patent/EP0144598B1/en
Expired legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/14—Needle cylinders

Definitions

  • the invention relates to a needle bed for circular knitting and knitting machines, the cylinder of which has webs between which the knitting or knitting needles are movably mounted in the axial direction.
  • the invention has for its object to design the needle bed for circular knitting and knitting machines in such a way that the manufacture is considerably simplified and that it is avoided to scrap the entire cylinder in the event of damage to individual parts of the needle bed in order to be replaced by a new one replace.
  • the needle bed for circular knitting and knitting machines in such a way that it is arranged in a manner distributed uniformly over the entire circumference of the cylinder preferably equally wide, directly adjacent segments, which are composed of flat, closely spaced webs of different heights, which alternate with one another in a regular sequence, the composite of the webs being formed in the form of metal or plastic, preferably in recesses on the underside Rods or strips or the like extending over the entire width of the segments. is effected.
  • the machine cylinder 11 is of relatively simple design and can be machined extremely precisely and precisely on a lathe. Insofar as grinding work is required, it can also be carried out in a simple manner, which ensures rational and cost-effective production of the machine cylinder.
  • the needle bed itself is from the segments attached to the circumference of the cylinder 11 12 formed, which are clamped to this and lie close together.
  • the individual needle bed segments 12 consist of a multiplicity of flat webs 13 and 14, of which the webs 13 have a greater height in the radial direction than the lower webs 14, which alternate with one another in a regular sequence, so that a web is formed in each case between webs 13 which are considered in which the needles are stored and can be moved up and down; they slide on the outer surface of the flat lower webs 14.
  • the webs 13 and 14 are made of a suitable material that is easy to harden so that the guideways for the needles can have any desired surface hardness.
  • each needle bed segment 12 In order to firmly connect the individual, closely abutting surfaces of the webs 13 and 14 of each needle bed segment 12 to form a compact element, there are recesses 15 forming grooves on the underside facing the cylinder 11, into which a metal in the liquid state or possibly also Plastic is poured or injected, which material after solidification forms bars or strips 16 extending across the entire width of the segments and causes the webs 13 and 14 to hold together.
  • parallel keys or strips 20 are arranged on the underside of the segments, which engage in grooves 21 arranged on the cylinder 11. Furthermore, stop surfaces 22 and 23, respectively be provided on the cylinders or on the segments 12 which abut one another.
  • the webs 13 are provided at their upper end 24 on the inner side 25 facing the axis of the cylinder 11 in the region of the knock-off position of the needles with a recess 26 which is intended for receiving a wire 27 of a wire ring made of hardened material, which is part of the system the needles in the tee area and serves as a tee edge.
  • This measure makes it possible to obtain a particularly uniform and better mesh structure than before.

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

Abstract

A cylinder of the bar is provided with struts between which the needles are axially movable. The bar is comprised of juxtaposed segments (12) having preferably the same width, along the periphery of the cylinder (11). The segments are formed of juxtaposed struts (13, 14) having different heights which alternate in regular sequences. The struts are held together by means of cleats (16) made of metal or plastic material and cast into recess (15) preferably on the lower side and extending throughout the width of the segments.

Description

Die Erfindung betrifft ein Nadelbett für Rundstrick- und -wirkmas,chinen, deren Zylinder Stege aufweist, zwischen welchen die Strick- bzw. Wirknadeln in axialer Richtung bewegbar gelagert sind.The invention relates to a needle bed for circular knitting and knitting machines, the cylinder of which has webs between which the knitting or knitting needles are movably mounted in the axial direction.

Üblicherweise werden bisher in den Zylinder von Rundstrick-und -wirkmaschinen Nuten eingefräst, in welche Stege eingesetzt werden, zwischen welchen die Strick- und Wirknadeln gelagert sind und mittels des Schlosses auf und nieder bewegt werden. Die Nadeln laufen dabei auf der Oberfläche des Zylinders, die zum Zwecke der Verhinderung zu starker und rascher Abnutzung in aller Regel gehärtet ist. Die Herstellung derartiger Zylinder ist vor allem aus fertigungstechnischen Gründen eine außerordentlich aufwendige Angelegenheit, bei der nur zu häufig Ausschuß entsteht, vor allem aufgrund von Folgeerscheinungen des Härtvorgangs.Up to now, grooves have usually been milled into the cylinder of circular knitting and knitting machines, into which webs are inserted, between which the knitting and knitting needles are mounted and moved up and down by means of the lock. The needles run on the surface of the cylinder, which is usually hardened for the purpose of preventing excessive and rapid wear. The production of such cylinders is an extraordinarily complex matter, particularly for manufacturing reasons, in which rejects arise too often, above all due to secondary effects of the hardening process.

Der Erfindung liegt die Aufgabe zugrunde, das Nadelbett für Rundstrick- und -wirkmaschinen in der Weise auszubilden, daß die Fertigung wesentlich vereinfacht wird und daß vermieden wird, bei Schäden an einzelnen Teilen des Nadelbetts den gesamten Zylinder zu verschrotten, um ihn durch einen neuen zu ersetzen.The invention has for its object to design the needle bed for circular knitting and knitting machines in such a way that the manufacture is considerably simplified and that it is avoided to scrap the entire cylinder in the event of damage to individual parts of the needle bed in order to be replaced by a new one replace.

Zur Lösung dieser Aufgabe wird gemäß der Erfindung vorgeschlagen, das Nadelbett für Rundstrick- und -wirkmaschinen in der Weise auszubilden, daß es aus über den gesamten Umfang des Zylinders gleichmäßig verteilt angeordneten, vorzugsweise gleich breiten, unmittelbar aneinander anliegenden Segmenten besteht, welche aus flachen, dicht aneinander anliegenden Stegen unterschiedlicher Höhe, die in regelmäßiger Folge einander abwechseln, zusammengesetzt sind, wobei der Verbund der Stege mittels in Ausnehmungen vorzugsweise auf der Unterseite eingegossenen Metalls oder Kunststoffs in Form sich über die ganze Breite der Segmente erstreckender Stäbe bzw. Leisten od.dgl. bewirkt ist.To achieve this object, it is proposed according to the invention to design the needle bed for circular knitting and knitting machines in such a way that it is arranged in a manner distributed uniformly over the entire circumference of the cylinder preferably equally wide, directly adjacent segments, which are composed of flat, closely spaced webs of different heights, which alternate with one another in a regular sequence, the composite of the webs being formed in the form of metal or plastic, preferably in recesses on the underside Rods or strips or the like extending over the entire width of the segments. is effected.

Weitere Merkmale des erfindungsgemäß ausgebildeten Nadelbetts gehen aus den Unteransprüchen und der nachstehenden Beschreibung eines in den Figuren 1 bis 3 der Zeichnung dargestellten, besonders bevorzugten Ausführungsbeispiels hervor. Es zeigen:

  • Fig. 1 eine Aufsicht auf einen Quadranten des Zylinders einer Rundstrick- bzw. -wirkmaschine, der an seinem Umfang mit den Nadelbettsegmenten bestückt ist,
  • Fig. 2 einen Querschnitt durch den Zylinder gemäß Fig. 1 und ein an dessen Umfang befestigtes Nadelbettsegment, und
  • Fig. 3 einen Schnitt durch den Zylinder einer Rundstrick- bzw. -wirkmaschine, welcher mit einem modifizierten Nadelbett gemäß der Erfindung bestückt ist.
Further features of the needle bed designed according to the invention are evident from the subclaims and the following description of a particularly preferred exemplary embodiment shown in FIGS. 1 to 3 of the drawing. Show it:
  • 1 is a plan view of a quadrant of the cylinder of a circular knitting or knitting machine, which is equipped on its circumference with the needle bed segments,
  • FIG. 2 shows a cross section through the cylinder according to FIG. 1 and a needle bed segment attached to its circumference, and
  • Fig. 3 shows a section through the cylinder of a circular knitting or knitting machine, which is equipped with a modified needle bed according to the invention.

Wie aus Fig. 1 und 2 hervorgeht, ist der Maschinenzylinder 11 relativ einfach gestaltet und kann auf einer Drehbank außerordentlich exakt und genau bearbeitet werden. Soweit Schleifarbeiten erforderlich sind, lassen sich diese gleichfalls in einfacher Weise ausführen, wodurch eine rationelle und kostengünstige Herstellung des Maschinenzylinders gewährleistet ist. Das Nadelbett selbst wird von den am Umfang des Zylinders 11 befestigten Segmenten 12 gebildet, die an diesem festgespannt sind und dicht aneinander anliegen.As can be seen from FIGS. 1 and 2, the machine cylinder 11 is of relatively simple design and can be machined extremely precisely and precisely on a lathe. Insofar as grinding work is required, it can also be carried out in a simple manner, which ensures rational and cost-effective production of the machine cylinder. The needle bed itself is from the segments attached to the circumference of the cylinder 11 12 formed, which are clamped to this and lie close together.

Die einzelnen Nadelbettsegmente 12 bestehen aus einer Vielzahl flacher Stege 13 und 14, von welchen die Stege 13 in radialer Richtung eine größere Höhe aufweisen als die niedrigereren Stege 14, die in regelmäßiger Folge einander abwechseln, so daß jeweils zwischen beachbarten Stegen 13 eine Bahn gebildet wird, in welcher die Nadeln gelagert und auf- und niederbewegbar sind; hierbei gleiten sie auf der äußeren Oberfläche der flachen niedrigereren Stege 14. Die Stege 13 und 14 bestehen aus einem geeigneten Werkstoff, der sich einfach härten läßt, so daß die Führungsbahnen für die Nadeln jede gewünschte Oberflächenhärte aufweisen können. Um die einzelnen, dicht aneinander anliegenden Flächen der Stege 13 und 14 eines jeden Nadelbettsegments 12 fest zu einem kompakten Element miteinander zu verbinden, befinden sich auf der dem Zylinder 11 zugekehrten Unterseite Nuten bildende Ausnehmungen 15, in welche ein Metall in flüssigem Zustand oder gegebenenfalls auch Kunststoff eingegossen bzw. eingespritzt wird, welches Material nach dem Erstarren sich über die ganze Breite der Segmente erstreckende Stäbe oder Leisten 16 bildet und den Zusammenhalt der Stege 13 und 14 bewirkt.The individual needle bed segments 12 consist of a multiplicity of flat webs 13 and 14, of which the webs 13 have a greater height in the radial direction than the lower webs 14, which alternate with one another in a regular sequence, so that a web is formed in each case between webs 13 which are considered in which the needles are stored and can be moved up and down; they slide on the outer surface of the flat lower webs 14. The webs 13 and 14 are made of a suitable material that is easy to harden so that the guideways for the needles can have any desired surface hardness. In order to firmly connect the individual, closely abutting surfaces of the webs 13 and 14 of each needle bed segment 12 to form a compact element, there are recesses 15 forming grooves on the underside facing the cylinder 11, into which a metal in the liquid state or possibly also Plastic is poured or injected, which material after solidification forms bars or strips 16 extending across the entire width of the segments and causes the webs 13 and 14 to hold together.

Zur Befestigung der einzelnen Segmente an dem Zylinder dienen Spannkeile 17, welche in schwalbenschwanzförmigen Nuten 18 auf der Unterseite der Nadelbettsegmente 12 eingesetzt sind und die mittels Spannschrauben 19 gegen das Zentrum des Zylinders gezogen werden.Clamping wedges 17, which are inserted in dovetail-shaped grooves 18 on the underside of the needle bed segments 12 and which are pulled against the center of the cylinder by means of clamping screws 19, are used to fasten the individual segments to the cylinder.

Um die Nadelbettsegmente 12 am Zylinder 11 exakt zu zentrieren, damit diese eine exakte Lage einnehmen, sind an der Unterseite der Segmente Paßfedern bzw. -leisten 20 angeordnet, welche in am Zylinder 11 angeordnete Nuten 21 eingreifen. Fernerhin können Anschlagflächen 22 bzw. 23 an den Zylindern bzw. an den Segmenten 12 vorgesehen sein, welche aneinander anliegen.In order to exactly center the needle bed segments 12 on the cylinder 11 so that they occupy an exact position, parallel keys or strips 20 are arranged on the underside of the segments, which engage in grooves 21 arranged on the cylinder 11. Furthermore, stop surfaces 22 and 23, respectively be provided on the cylinders or on the segments 12 which abut one another.

Bei einer derartigen Konstruktion des Nadelbetts von Zylindern von Rundstrick- bzw. -wirkmaschinen ist es in einfacher Weise möglich, bei Schäden an bestimmten Stellen des Nadelbetts das davon betroffene Nadelbettelement 12 rasch auszuwechseln, ohne daß es, wie bisher, notwendig ist, den gesamten Nadelbettzylinder durch einen neuen zu ersetzen. Außerdem ist durch die getrennte Fertigung des Zylinders 11 einerseits und des aus Segmenten 12 zusammengesetzten Nadelbetts andererseits eine wesentlich einfachere und kostengünstigerere Produktion des Nadelbettzylinders möglich.With such a construction of the needle bed of cylinders of circular knitting machines, it is possible in a simple manner to quickly replace the affected needle bed element 12 in the case of damage to certain locations on the needle bed without, as previously, the entire needle bed cylinder being necessary to be replaced by a new one. In addition, the separate manufacture of the cylinder 11, on the one hand, and the needle bed composed of segments 12, on the other hand, enables a substantially simpler and more cost-effective production of the needle bed cylinder.

Vorteilhafterweise sind die Stege 13 an ihrem oberen Ende 24 an der der Achse des Zylinders 11 zugekehrten Innenseite 25 im Bereich der Abschlagstellung der Nadeln mit einer Ausnehmung 26 versehen, welche für die Aufnahme eines Drahtes 27 eines Drahtrings aus gehärtetem Werkstoff bestimmt ist, welcher der Anlage der Nadeln im Abschlagbereich und als Abschlagkante dient. Diese Maßnahme ermöglicht es, ein besonders gleichmäßiges und besseres Maschenbild als bisher zu erhalten.Advantageously, the webs 13 are provided at their upper end 24 on the inner side 25 facing the axis of the cylinder 11 in the region of the knock-off position of the needles with a recess 26 which is intended for receiving a wire 27 of a wire ring made of hardened material, which is part of the system the needles in the tee area and serves as a tee edge. This measure makes it possible to obtain a particularly uniform and better mesh structure than before.

Claims (5)

1. Nadelbett für Rundstrick- und -wirkmaschinen, deren Zylinder Stege aufweist, zwischen welchen die Strick- bzw. Wirknadeln in axialer Richtung bewegbar gelagert sind, dadurch gekennzeichnet, daß das Nadelbett aus über den gesamten Umfang des Zylinders (11) gleichmäßig verteilt_ angeordneten, vorzugsweise gleich breiten, unmittelbar aneinander anliegenden Segmenten (12) besteht, welche aus flachen, dicht aneinander anliegenden Stegen (13,14) unterschiedlicher Höhe, die in regelmäßiger Folge einander abwechseln, zusammengesetzt sind, wobei der Verbund der Stege (13,14) mittels in Ausnehmungen (15) vorzugsweise auf der Unterseite eingegossenen Metalls oder Kunststoffs in Form sich über die ganze Breite der Segmente erstreckender Stäbe bzw. Leisten (16) od.dgl. bewirkt ist.1. Needle bed for circular knitting and knitting machines, the cylinder of which has webs, between which the knitting or knitting needles are mounted so as to be movable in the axial direction, characterized in that the needle bed is arranged_ evenly distributed over the entire circumference of the cylinder (11), there are preferably segments of the same width, directly adjacent to one another, which are composed of flat, closely adjacent webs (13, 14) of different heights, which alternate in a regular sequence, the connection of the webs (13, 14) using in recesses (15), preferably on the underside of cast-in metal or plastic in the form of rods or strips (16) or the like extending over the entire width of the segments. is effected. 2. Nadelbett nach Anspruch 1, dadurch gekennzeichnet, daß die die Stege (13,14) miteinander verbindenden Metallstäbe bzw. -leisten (16) einen trapezförmigen Querschnitt aufweisen.2. Needle bed according to claim 1, characterized in that the webs (13, 14) interconnecting metal rods or strips (16) have a trapezoidal cross section. 3. Nadelbett nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Segmente (12) mittels in auf deren Unterseite angeordnete Schwalbenschwanznuten (18) eingesetzten Spannkeilen (17) am Zylinder (11) festgespannt sind.3. Needle bed according to claim 1 or 2, characterized in that the segments (12) are clamped by means of clamping wedges (17) inserted in dovetail grooves (18) arranged on their underside on the cylinder (11). 4. Nadelbett nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, daß zur Zentrierung und Lagebestimmung der Segmente (12) an deren Unterseite Paßfedern bzw. -leisten (20) und gegebenenfalls Anschlagflächen (22) angeordnet sind, welche in am Zylinder (11) angeordnete Nuten (21) eingreifen bzw. an Anschlagflächen (23) anliegen.4. needle bed according to claim 1, 2 or 3, characterized in that for centering and determining the position of the segments (12) on the underside of parallel keys or strips (20) and optionally stop surfaces (22) are arranged, which in on the cylinder (11th ) arranged Engage grooves (21) or rest against stop surfaces (23). 5. Nadelbett nach Anspruch 1, 2, 3 oder 4, dadurch gekennzeichnet, daß die Stege (13) an ihrem oberen Ende (24) an der Innenseite (25) im Bereich der Abschlagstellung der Nadeln eine für die Aufnahme eines, der Anlage der Nadeln und als Abschlagkante dienenden Drahtes (27) aus gehärtetem Werkstoff vorgesehene Ausnehmung (26) aufweisen.5. needle bed according to claim 1, 2, 3 or 4, characterized in that the webs (13) at their upper end (24) on the inside (25) in the region of the knock-off position of the needles one for receiving one, the system of Needles and wire (27) made of hardened material and serving as a tapping edge have a recess (26).
EP84111836A 1983-10-07 1984-10-03 Needle bed for a circular knitting machine Expired EP0144598B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3336594A DE3336594A1 (en) 1983-10-07 1983-10-07 NEEDLE BED FOR CIRCULAR KNITTING AND KNITTING MACHINES
DE3336594 1983-10-07

Publications (2)

Publication Number Publication Date
EP0144598A1 true EP0144598A1 (en) 1985-06-19
EP0144598B1 EP0144598B1 (en) 1988-04-27

Family

ID=6211299

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84111836A Expired EP0144598B1 (en) 1983-10-07 1984-10-03 Needle bed for a circular knitting machine

Country Status (8)

Country Link
EP (1) EP0144598B1 (en)
JP (1) JPS61500127A (en)
CS (1) CS261221B2 (en)
DD (1) DD232727A5 (en)
DE (2) DE3336594A1 (en)
ES (1) ES8506828A1 (en)
SU (1) SU1449019A3 (en)
WO (1) WO1985001756A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITFI20120209A1 (en) * 2012-10-15 2014-04-16 Renato Pilotelli "SINGLE CYLINDER KNITWEAR MACHINE"
CN104862872B (en) * 2014-02-24 2017-08-25 山德霓股份公司 Knitting circular knitting machine
IT201700038900A1 (en) * 2017-04-07 2018-10-07 Alberto Pilotelli NEEDLE CYLINDER FOR A SINGLE FRONT KNITTING MACHINE

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB249996A (en) * 1925-03-10 1926-04-08 Franklin Billson Improvements in or relating to circular knitting machines
GB586771A (en) * 1944-10-07 1947-03-31 Bentley Eng Co Ltd Improvements in and relating to grooved or tricked beds for sliding instruments
US3290900A (en) * 1963-07-10 1966-12-13 Scott & Williams Inc Knitting machine elements
FR2150026A5 (en) * 1971-08-11 1973-03-30 Fouquet Werk Frauz & Planck

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB249996A (en) * 1925-03-10 1926-04-08 Franklin Billson Improvements in or relating to circular knitting machines
GB586771A (en) * 1944-10-07 1947-03-31 Bentley Eng Co Ltd Improvements in and relating to grooved or tricked beds for sliding instruments
US3290900A (en) * 1963-07-10 1966-12-13 Scott & Williams Inc Knitting machine elements
FR2150026A5 (en) * 1971-08-11 1973-03-30 Fouquet Werk Frauz & Planck

Also Published As

Publication number Publication date
ES536892A0 (en) 1985-08-01
ES8506828A1 (en) 1985-08-01
DE3336594A1 (en) 1985-04-25
EP0144598B1 (en) 1988-04-27
DE3470761D1 (en) 1988-06-01
JPH0515812B2 (en) 1993-03-02
JPS61500127A (en) 1986-01-23
DD232727A5 (en) 1986-02-05
WO1985001756A1 (en) 1985-04-25
CS261221B2 (en) 1989-01-12
SU1449019A3 (en) 1988-12-30

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