EP2067885B1 - Fonture avec conduits de fluide - Google Patents

Fonture avec conduits de fluide Download PDF

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Publication number
EP2067885B1
EP2067885B1 EP07023817A EP07023817A EP2067885B1 EP 2067885 B1 EP2067885 B1 EP 2067885B1 EP 07023817 A EP07023817 A EP 07023817A EP 07023817 A EP07023817 A EP 07023817A EP 2067885 B1 EP2067885 B1 EP 2067885B1
Authority
EP
European Patent Office
Prior art keywords
fluid
needle bed
knitting machine
machine according
grooves
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.)
Active
Application number
EP07023817A
Other languages
German (de)
English (en)
Other versions
EP2067885A1 (fr
Inventor
Rainer Krauss
Matthias Seeger
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.)
Groz Beckert KG
Original Assignee
Groz Beckert 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 Groz Beckert KG filed Critical Groz Beckert KG
Priority to EP07023817A priority Critical patent/EP2067885B1/fr
Priority to SG200808581-3A priority patent/SG153014A1/en
Priority to JP2008308501A priority patent/JP5033778B2/ja
Priority to TW097147232A priority patent/TWI365238B/zh
Priority to BRPI0805255A priority patent/BRPI0805255B1/pt
Priority to CN2008101780240A priority patent/CN101451289B/zh
Priority to US12/314,280 priority patent/US7673478B2/en
Publication of EP2067885A1 publication Critical patent/EP2067885A1/fr
Application granted granted Critical
Publication of EP2067885B1 publication Critical patent/EP2067885B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • D04B15/10—Needle beds
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B35/00—Details of, or auxiliary devices incorporated in, knitting machines, not otherwise provided for
    • D04B35/30—Devices for controlling temperature of machine parts

Definitions

  • the invention relates to a needle bed for a knitting machine.
  • Knitting machines are known, for example, in the form of circular knitting machines or flat knitting machines. While the latter have at least one essentially flat needle bed, in the case of circular knitting machines the needle beds are hollow-cylindrical in shape as knitting cylinders or annular in the form of dials. Each needle bed has needle channels into which knitting tools such as needles or sinkers are inserted. The knitting tools are reciprocated in operation in the needle bed.
  • the DE 24 16 626 A1 discloses such a needle bed, further teaching to provide the needle bed with grooves extending transverse to the needle channels and to blow through holes an air / oil mixture in these grooves.
  • the groove walls bounding the guide channels of the knitting tools can be provided with recesses so that the lubricating medium can spread better between the knitting tools and their guide channels.
  • the DE 1 635 836 A both discloses a knitting cylinder as well as a dial of a circular knitting machine. Both may be provided with annular grooves which cut the guide grooves of the knitting tools. Compressed air can be injected into the lock shell via these annular grooves.
  • Compressed air is a process medium, the use of which is associated with considerable operating costs. It must therefore be a goal to reduce the amount of compressed air required to operate a knitting machine.
  • the web has at its seated in the groove side, i. on its underside, similar to a comb a plurality of recesses whose depth is slightly greater than the depth of the grooves formed in the body.
  • Most of these tooth-like protrusions do not contact the groove base of the needle carrier, thereby providing a longitudinal flow channel within the groove, with which fluid, such as, for example, can flow
  • most tooth-like protrusions float above the groove bottom of the needle carrier, and the thickness of the web and its teeth preferably coincide with each point of the ridge
  • the upper side of the web is preferably closed, ie formed without recesses, Preferably, the web is closed at the top with a narrow straight uninterrupted strip-shaped surface.
  • a preferred embodiment may have multiple fluid channels with different functions. For example, there is a first fluid channel, as already described, in the immediate Proximity to the grooves for the canal bridges. This fluid channel is formed in the form of a circumferential groove and can act as a distributor groove. A second fluid channel may be located within the base body and communicate with the first fluid channel via a connection channel, preferably a plurality of connection channels.
  • each web For supporting and adjusting the webs within the groove is preferably used in each case the front and rear end of each web.
  • one of the tooth-like projections between its front and rear ends of the web may contact the bottom of the groove to prevent flow interruption, i.
  • This tooth-like projection thus divides the recesses into two groups, namely a first group which is in communication with a fluid-supplying channel and a second group which communicates, for example, with a fluid-discharging channel.
  • the invention thus allows on the one hand the controlled and adequate lubrication of knitting tools and on the other hand, both the contamination of the knitting tools and the needle channels as well as the discharge of lubricant into the environment or excessive contamination the knitwear with lubricant avoided.
  • the controlled supply of fluid to the knitting tool through a series of recesses in the lands reduces the amount of fluid required to a minimum. This is possible because, on the one hand, the controlled distribution of the fluid over the length of the knitting tool avoids uncontrolled escape and too much fluid at certain points, as well as a lack of fluid elsewhere.
  • FIG. 1 illustrates a needle bed 1 in the form of a knitting cylinder 2.
  • the knitting cylinder 2 has on its outer periphery a substantially cylindrical surface 3, projecting from the webs 4 substantially radially away.
  • the webs 4 are oriented along the knitting cylinder 2. Preferably, they are formed as flat sheet metal parts with flat, mutually parallel side surfaces. But the webs 4 can also have different shapes, such as a slim wedge shape. The side surfaces then enclose an acute angle with each other.
  • Knitting tools 6 are arranged for example in the form of needles 7.
  • Each needle channel 5 is thus bounded by two side surfaces of two webs 4.
  • the surface 3 forms the bottom of the needle channels 5.
  • FIG. 2 shows the conditions in the realization of the needle bed according to the invention in the form of a dial 8, as it is FIG. 2 shows.
  • the main body 10 of the dial 8 forms a flat ring. Its substantially flat top is an annular surface 11, on which the webs 4 are arranged, between which the needles 7 or other knitting tools 6 sit like sinkers.
  • FIG. 3 Thereafter, in the surface 3 or 11 grooves 12, 13, 14 and further formed, which serve to receive the webs 4.
  • the webs 4 are secured in the grooves 12, 13, 14 and thus form the side walls of the needle channels 5, the bottom of which is formed by the surface 3 and 11 respectively.
  • the base body 10 is composed of at least two annular parts 10a, 10b composed.
  • the two parts 10a, 10b are joined together and secured as indicated, for example by screws or other connecting means to each other. They define between each other two annular fluid channels 15, 16, which are separated from each other by a partition wall 17.
  • the fluid channels 15, 16 may be provided with ports 18, 19 to supply and remove fluids such as compressed air or the like.
  • a connecting channel 20 extends to a distributor groove 21, which is formed for example as an annular groove and arranged concentrically to the annular base body 10.
  • the annular groove 21 intersects all the grooves 12, 13, 14.
  • the part 10a has a whole series of such connecting channels 20 which connect the distributor groove 21 to the fluid channel 15 at a plurality of preferably many different locations.
  • the distributor groove 21 is concealed, ie it does not reach the surface 11 forming the bottom of the guide grooves of the knitting tools. This can be achieved, for example, by the distributor groove 21, as in FIG FIG. 4 is machined starting from a surface 22 in the part 10 a, wherein the surface 22 is covered in the assembled state of the part 10 b.
  • the distributor groove 21 lies at a height at which it intersects all grooves, for example 12, 13, 14, ie it projects beyond its groove bottom 23.
  • the fluid channel 16, which preferably serves to remove the fluid is connected via at least one preferably a plurality of connecting channels 24 to a distributor groove 25, which functions as a collecting groove, which is preferably arranged concentrically with the distributor groove 21. While the distribution groove 21 is disposed at one end of the groove 12, the distribution groove 25 is disposed at the other end thereof.
  • the distributor groove 25 is incorporated in the surface 11 and is thus open to the needle channels 5.
  • the webs 4 are preferably formed equal to each other. They are preferably formed as thin flat flat parts, which are upright standing in the grooves 12, 13, 14 are used. Their ends 26, 27 bear on the bottom 23 of the groove 12 or on other fitting or alignment surfaces of the base body 10 and thus position the web 4th
  • the web 4 is provided with a series of recesses 28 to 37, between which projections in the form of teeth 38 to 46 are formed.
  • the recesses 28 to 37 take away from the lower, seated in the groove 12 edge of the web 4 material and are each so large that they project beyond the surface 11 when the web 4 is seated in the groove 12.
  • the seated between the recesses 28 to 37 teeth 38 to 46 are so long that they dip into the groove 12.
  • at least one tooth 38 is so long that it touches the groove bottom 23 or at least almost touched. It thus forms a barrier which essentially prevents the fluid flow along the groove 12.
  • the remaining teeth 39 to 46 are shorter so that they do not reach the groove bottom 23.
  • the long tooth 38 thus divides the recesses 28 to 37 into two groups, a first group (29 to 37) which communicates with the fluid-supplying distributor groove 21 and a second group (28); which is in communication with the fluid discharge manifold groove 25.
  • the air / oil mixture passes in an orderly manner into the needle channels and to the meshing tools. Due to the suction effect of the collecting channel 25 and the fluid channel 16, the oil / air mixture is discharged together with fiber dust, abrasion and so on. It creates a defined circulation.
  • the adjustment of air supply and removal can be chosen so that there is always a slight overpressure in the area of the mesh-forming parts, so that dust and dirt are kept away.
  • the invention can undergo numerous modifications.
  • the tooth 38 as FIG. 5 illustrated, shortened and sealed by a separate seal 48 between the tooth 38 and the groove bottom 23 is used.
  • FIG. 6 shows to make the individual recesses 28 to 37 different from each other and form the projections in the form of teeth 38 to 46 with different lengths.
  • a uniform distribution of the air or the oil / air mixture can be obtained.
  • a particular desired distribution profile can be set.
  • the flow rate of the grooves 12, 13, 14 can be reduced starting from the distributor groove 21 with increasing distance. This can be ensured by either decreasing the volume of the grooves 12, 13, 14 in the base body 10 with increasing distance from the feed point, eg by a decreasing groove depth, or by reducing the volume of the web portions inserted into the grooves 12, 13 , 14 rich, with increasing distance from the feed point ie the distributor groove 21 increase.
  • the design of the recesses and teeth can vary along the web 4 both in terms of their shape, in particular the length and the width so that over the entire length of the web 4 each locally equal amount of air is directed to the respective location of the stitch forming element.
  • the distribution of the air or the oil / air mixture can be optimized by the volume of the fluid channels 15, 16 is adapted to the flow conditions, ie that the volume of the fluid channels, in particular the fluid channel 15 through which the air or the oil / air mixture is supplied, starting from the port 18, reduced. It is also possible that the volume of the fluid channel 15, starting from the port 18 increases, if thereby the flow conditions can be optimized. The same applies analogously to the fluid channel 16.
  • FIG. 7 A modified embodiment is in FIG. 7 shown.
  • the needle bed 1 shown therein has a particularly space-saving embodiment, which is particularly suitable for small circular knitting machines and flat knitting machines.
  • the needle bed 1 can only comprise a fluid channel 15 in the form of the known distributor groove 21. This fluid channel 15 is fed directly via a port 18 or connecting channel 20 with the air / oil mixture.
  • the fluid channel 16 or the connecting channel 24 is not included in this embodiment, but may optionally be present to allow or support the suction of the fluids.
  • the needle bed 1 has to form needle channels 5 webs 4, which are formed like a comb. Between the individual teeth of this comb recesses 28 to 37 are formed, which are adapted to the needle channel 5 fluid and remove.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
  • Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)
  • Knitting Of Fabric (AREA)

Claims (14)

  1. Fonture (1) pour métier à tricoter,
    comprenant un corps de base (9, 10) qui présente au moins un conduit de fluide (21, 15, 16) et qui est pourvu, sur une surface (3, 11), de rainures (12, 13, 14) qui communiquent avec le conduit de fluide (21, 15, 16),
    comprenant des cloisons (4) qui sont insérées dans les rainures (12, 13, 14) pour former entre elles des rainures de guidage (5) pour des outils à tricoter (6), et qui présentent chacune un certain nombre d'évidements (28-37) qui établissent une communication de fluide entre le conduit de fluide (21, 15, 16) et les rainures de guidage (5),
    caractérisée par le fait que
    des saillies (38-46) sont réalisées entre les évidements (28-37) et pénètrent dans les rainures (12, 13, 14), sans toutefois entrer en contact avec le fond (23) de celles-ci.
  2. Fonture pour métier à tricoter selon la revendication 1, caractérisée par le fait que le corps de base (9, 10) présente des conduits de raccordement (20, 24) qui relient les rainures (12, 13, 14) au conduit de fluide (21, 15, 16).
  3. Fonture pour métier à tricoter selon la revendication 1, caractérisée par le fait que le corps de base (9, 10) comporte plusieurs conduits de fluide (15, 16).
  4. Fonture pour métier à tricoter selon la revendication 3, caractérisée par le fait que le corps de base (9, 10) se compose d'au moins deux parties (10a, 10b) qui délimitent entre elles les conduits de fluide (15, 16).
  5. Fonture pour métier à tricoter selon la revendication 4, caractérisée par le fait que le corps de base (9, 10) comporte au moins deux conduits de fluide (15, 16) qui sont séparés l'un de l'autre.
  6. Fonture pour métier à tricoter selon la revendication 1, caractérisée par le fait que le conduit de fluide (21, 15, 16) présente des raccords (20, 24, 18, 19) pour amener et/ou évacuer des fluides, le volume du conduit de fluide (21, 15, 16) se modifiant à partir du raccord (20, 24, 18, 19).
  7. Fonture pour métier à tricoter selon la revendication 1, caractérisée par le fait que le volume du conduit de fluide (15, 16) diminue à partir du raccord (20, 24, 18, 19).
  8. Fonture pour métier à tricoter selon la revendication 1, caractérisée par le fait que les évidements (28-37) des cloisons (4) insérées dans les rainures (12, 13, 14) dépassent par rapport à la surface (3, 11).
  9. Fonture pour métier à tricoter selon la revendication 7, caractérisée par le fait que les saillies (38-46) présentent des formes différentes, en particulier des longueurs et/ou des largeurs différentes.
  10. Fonture pour métier à tricoter selon la revendication 1, caractérisée par le fait que les évidements (28-36) des cloisons (4) sont disposés respectivement dans une rangée qui s'étend sur une portion de la longueur de la cloison (4) concernée.
  11. Fonture pour métier à tricoter selon la revendication 1, caractérisée par le fait qu'un barrage de fluide est disposé entre au moins deux des évidements (28, 29) d'une cloison (4).
  12. Fonture pour métier à tricoter selon la revendication 1, caractérisée par le fait que chacune des cloisons (4) présente deux extrémités (26, 27) qui sont tenues dans les rainures (12, 13, 14) de façon étanche aux fluides.
  13. Fonture pour métier à tricoter selon la revendication 1, caractérisée par le fait qu'au moins un des conduits de raccordement (20, 24) communique avec un conduit de distribution ou de collecte (21, 25) qui est orienté transversalement aux rainures (12, 13, 14) et coupe celles-ci.
  14. Fonture pour métier à tricoter selon la revendication 1, caractérisée par le fait que l'un des deux conduits de fluide (15, 16) est raccordé à un dispositif d'aspiration et par le fait que l'autre des deux conduits de fluide (15, 16) est raccordé à un dispositif qui alimente ledit conduit en fluide.
EP07023817A 2007-12-08 2007-12-08 Fonture avec conduits de fluide Active EP2067885B1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP07023817A EP2067885B1 (fr) 2007-12-08 2007-12-08 Fonture avec conduits de fluide
SG200808581-3A SG153014A1 (en) 2007-12-08 2008-11-19 Needle bed with fluid channels
JP2008308501A JP5033778B2 (ja) 2007-12-08 2008-12-03 流路を有する針床
TW097147232A TWI365238B (en) 2007-12-08 2008-12-05 Needle bed with fluid channels
BRPI0805255A BRPI0805255B1 (pt) 2007-12-08 2008-12-08 frontura com canais de fluido
CN2008101780240A CN101451289B (zh) 2007-12-08 2008-12-08 带流体通道的针床
US12/314,280 US7673478B2 (en) 2007-12-08 2008-12-08 Needle bed with fluid channels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07023817A EP2067885B1 (fr) 2007-12-08 2007-12-08 Fonture avec conduits de fluide

Publications (2)

Publication Number Publication Date
EP2067885A1 EP2067885A1 (fr) 2009-06-10
EP2067885B1 true EP2067885B1 (fr) 2011-07-20

Family

ID=38959604

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07023817A Active EP2067885B1 (fr) 2007-12-08 2007-12-08 Fonture avec conduits de fluide

Country Status (7)

Country Link
US (1) US7673478B2 (fr)
EP (1) EP2067885B1 (fr)
JP (1) JP5033778B2 (fr)
CN (1) CN101451289B (fr)
BR (1) BRPI0805255B1 (fr)
SG (1) SG153014A1 (fr)
TW (1) TWI365238B (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101097855B1 (ko) 2010-04-12 2011-12-23 금용기계 주식회사 윤활유에 의한 환편기의 오염 방지 장치
DE102013208066A1 (de) * 2013-05-02 2014-11-06 Sipra Patententwicklungs- Und Beteiligungsgesellschaft Mbh Schlossteil für eine Rundstrickmaschine
US10656066B2 (en) 2015-03-09 2020-05-19 Isp Investments Llc Spray characterization by optical image analysis
PT3124663T (pt) 2015-07-30 2020-01-16 Groz Beckert Kg Método e dispositivo de formação de laços
US9617667B1 (en) * 2015-11-04 2017-04-11 Pai Lung Machinery Mill Co., Ltd. Sinker equipped with lubrication oil channeling and separating structure
TWI639742B (zh) * 2016-08-01 2018-11-01 侯谷青 圓編織機針板總成的製造方法

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD37345A (fr) *
US2368224A (en) * 1942-02-17 1945-01-30 Koppel Charles Knitting machine of a cylinder type
US3545233A (en) * 1967-06-19 1970-12-08 Victor J Lombardi Cylinder and dial construction for knitting machines
US3817058A (en) * 1971-09-22 1974-06-18 V Lombardi Cylinder and dial construction for knitting machines
JPS50134463U (fr) * 1974-04-16 1975-11-06
JPS5242957A (en) * 1975-09-30 1977-04-04 Toyo Boseki Variable gauge needle bar for knitting machine
IT1178748B (it) * 1984-12-10 1987-09-16 Lonati Spa Macchina circulare per maglieria, in particolare per calze, con lubrificazione a ciclio continuo
JPS632789U (fr) * 1986-06-20 1988-01-09
DE3938685C2 (de) * 1989-11-22 1999-12-23 Sipra Patent Beteiligung Rundstrickmaschine zur Herstellung gleichförmiger Temperaturbedingungen an einer Rundstrickmaschine
DE4024101C2 (de) * 1990-07-30 1999-11-18 Sipra Patent Beteiligung Träger in Zylinder-, Ring-, Platten- oder Scheibenform o. dgl. an einer Rundstrickmaschine
US5609044A (en) * 1996-01-19 1997-03-11 Monarch Knitting Machinery Corp. Durable knitting machine cylinder assembly and method of making same
US5737942A (en) * 1996-07-03 1998-04-14 Alandale Industries, Inc. Means for deterring lint and debris accumulation on the knitting elements of a circular knitting machine
DE102005057354B3 (de) * 2005-12-01 2007-06-21 Groz-Beckert Kg Strickmaschine mit Luftzuführung

Also Published As

Publication number Publication date
CN101451289A (zh) 2009-06-10
US7673478B2 (en) 2010-03-09
EP2067885A1 (fr) 2009-06-10
US20090145171A1 (en) 2009-06-11
JP2009138323A (ja) 2009-06-25
BRPI0805255B1 (pt) 2019-01-15
CN101451289B (zh) 2011-09-28
JP5033778B2 (ja) 2012-09-26
SG153014A1 (en) 2009-06-29
TWI365238B (en) 2012-06-01
TW200946730A (en) 2009-11-16
BRPI0805255A2 (pt) 2009-08-18

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