GB2102457A - Yarn guide for flat knitting machine - Google Patents
Yarn guide for flat knitting machine Download PDFInfo
- Publication number
- GB2102457A GB2102457A GB08220613A GB8220613A GB2102457A GB 2102457 A GB2102457 A GB 2102457A GB 08220613 A GB08220613 A GB 08220613A GB 8220613 A GB8220613 A GB 8220613A GB 2102457 A GB2102457 A GB 2102457A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sheave
- yarn guide
- head
- stem
- yarn
- 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
Links
- 238000009940 knitting Methods 0.000 title claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 7
- 229910000760 Hardened steel Inorganic materials 0.000 claims abstract description 6
- 229910010293 ceramic material Inorganic materials 0.000 claims abstract description 5
- 229920003023 plastic Polymers 0.000 claims abstract description 5
- 239000004033 plastic Substances 0.000 claims abstract description 5
- 229920006324 polyoxymethylene Polymers 0.000 claims abstract description 4
- 230000010355 oscillation Effects 0.000 abstract description 2
- 229920005176 Hostaform® Polymers 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- VQLYBLABXAHUDN-UHFFFAOYSA-N bis(4-fluorophenyl)-methyl-(1,2,4-triazol-1-ylmethyl)silane;methyl n-(1h-benzimidazol-2-yl)carbamate Chemical compound C1=CC=C2NC(NC(=O)OC)=NC2=C1.C=1C=C(F)C=CC=1[Si](C=1C=CC(F)=CC=1)(C)CN1C=NC=N1 VQLYBLABXAHUDN-UHFFFAOYSA-N 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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
- D04B15/38—Devices for supplying, feeding, or guiding threads to needles
- D04B15/54—Thread guides
- D04B15/56—Thread guides for flat-bed knitting machines
-
- 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
- D04B15/66—Devices for determining or controlling patterns ; Programme-control arrangements
- D04B15/80—Devices for determining or controlling patterns ; Programme-control arrangements characterised by the thread guides used
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Knitting Machines (AREA)
- Socks And Pantyhose (AREA)
Abstract
A yarn guide comprises a head (1) and a stem (2) which is mounted on a yarn guide stirrup which is moved over the needle beds of a flat knitting machine. In order to achieve a simple, stable and easily replaceable yarn guide the head (1) and the stem (2) are made in one piece from resilient plastics material, for example polyformaldehyde, and a tube (8) of hardened steel or ceramic material is moulded or bonded into the sheave head (1). Undesirable oscillation of the sheave head following deflection movements of the sheave is thereby damped. <IMAGE>
Description
SPECIFICATION
Yarn guide sheaves
This invention relates to a yarn guide sheave comprising a sheave head and a sheave stem, with the sheave being arranged to be mounted on a yarn guide stirrup which is moved over the needle beds of a flat knitting machine.
Such yarns guide sheaves have to be provided with a resilient stem, so that during their movement over the needle beds of the flat knitting machine, they can be resiliently deflected as they slide past inactive, tightly packed sheaves which lie outside the working width of the machine, and also as they slide past the tensioners for the knitted goods for example.
One yarn guide sheave is shown in Fig. 1 and comprises a sheave head 1 and a sheave stem 2.
The sheave head 1 is drop-shaped or wedgeshaped and includes a bore 3 through which the yarn runs during the knitting process. The sheave head 1 is made of hardened steel, and the surface of the borehole is polished to a high lustre finish.
The sheave stem 2, which is connected to the sheave head 1, is made for example of spring strip steel, so that the yarn guide sheaves can be deflected mutually as they slide past in contact with one another.
Figure 2 shows another known type of sheave head 1 which here comprises a base plate 4 and a cover plate 5. A small tube 6 of hardened steel or a ceramic material, which serves for the yarn to run through, is held clamped between the base plate 4 and the cover plate 6 by screwing the two plates together. This sheave head 1 has the disadvantage that the small tube 6 is very poorly clamped and the sheave head 1 is very expensive to make and therefore costly.
Figure 3 shoes a further known type of yarn guide sheave in which the sheave head 1 is formed integrally with a portion 7 of the stem.
The stem portion 7 for its part is mounted pivotally and resiliently on the actual sheave stem 2, in such a way that the spring action always tends to maintain the parts of the yarn guide sheave in their basic position. However, this pivoted mounting of the yarn guide sheave is very expensive to make and therefore costly.
The various known yarn guide sheaves are either expensive to make and costly or have the disadvantage that they continue to oscillate strongly when they are deflected and consequently the correct laying of the yarns on the needles is put at risk.
It is an object of the present invention to provide a yarn guide sheave which is simple in design and is ecomomical to produce, and with which one can reliably avoid continuing oscillation of the sheave head following a deflection movement.
This is achieved in accordance with the present invention by a yarn guide sheave comprising a sheave head and a sheave stem which is arranged to be mounted on a yarn guide stirrup which is moved over the needle beds of a flat knitting machine, in which the sheave head and the sheave stem are made in one piece from resilient plastics material, and in which a tube of hardened steel or ceramic material is moulded or bonding into the sheave head.
The resilience of the plastics material and the form of the sheave stem are chosen so that the yarn guide sheave can deflect easily but not continue to oscillate thereafter.
Preferably, the sheave stem is shaped so that it tapers outwardly from the sheave head in the direction of movement of the yarn guide sheave.
This gives the yarn guide sheave additional lateral stability.
The basic material of the yarn guide sheave is preferably a polyformaldehyde (for example
Hostaform C2520).
The tube in the sheave head preferably has out-turned tulip-shaped ends where the yarn enters and leaves the tube. This also means that, if the tube is moulded into the sheave head, it is thereby fixed in a simple way so that it can slide neither upwards nor downwards. Furthermore, the tulip-shaped end of the tube where the yarn leaves the tubes has the advantage that the yarn, which is withdrawn at this end substantially at right-angles around the lip of the tube, travels around a larger radius and is thus protected.
Preferably, threaded nuts are moulded into the sheave stem at the end of the stem remote from the head, and by means of which the yarn guide sheave can be screwed or bolted on to the yarn guide stirrup.
The invention will now be described in more detail with reference to the drawings. In the drawings:
Fig. 1 shows a side and plan views of a known yarn guide sheave;
Fig. 2 shows plan and sectional side views of another known sheave head;
Fig. 3 shows plan and sectional side views of a further known yarn guide sheave;
Fig. 4 is a plan view of an embodiment of yarn guide sheave in accordance with the present invention;
Fig. 5 is a side view, partly in section, of the yarn guide sheave of Fig. 4; and,
Fig. 6 is a detail view, in section, of part of the sheave of Fig. 5.
The known yarn guide sheaves illustrated in
Figs. 1 to 3 have already been described above.
The yarn guide sheave in accordance with the present invention which is shown in Figures 4 to 6 consists of a sheave head 1 and a sheave stem 2 formed in one piece from a resilient plastics material, for example polyformaldehyde (Hostaform C2520). A small tube 8 of hardened steel or of a ceramic material is moulded into the sheave head 1. The tube 8 has out-turned tulipformed ends 9 and 10, both at the yarn inlet end and also at the yarn outlet end. By means of these out-turned tulip-formed ends 9, 10 the tube 8 is fixed in the sheave head 1 in a simple way during the moulding process, and it also cannot slide upwards or downwards. Additionally, the yarn is cared for to the optimum degree by the provision of the tulip-formed ends 9 and 10.
The sheave stem 2 is formed so that it tapers outwardly in the direction away from the sheave head 1. This tapered design gives additional lateral stability to the yarn guide sheave. Two internally threaded nuts 11 are moulded into the upper part of the sheave stem 2. The threads of these nuts 11 receive screws or bolts for fastening the yarn guide sheave to the yarn guide stirrup.
The yarn guide sheave of the present invention is simple and stable in design and can very easily be exchanged or replaced.
Claims (6)
1. A yarn guide sheave comprising a sheave head and a sheave stem which is arranged to be mounted on a yarn guide stirrup which is moved over the needle beds of a flat knitting machine, in which the sheave head and the sheave stem are made in one piece from resilient plastics material, and in which a tube of hardened steel or ceramic material is moulded or bonded into the sheave head.
2. A yarn guide sheave as claimed in claim 1, in which the sheave stem tapers outwardly away from the sheave head in the direction of movement of the yarn guide sheave.
3. A yarn guide sheave as claimed in claim 1 or 2, in which the basic material of the yarn guide sheave is polyformaldehyde.
4. A yarn guide sheave as claimed in claim 1, 2 or 3, in which the tube in the sheave head has out-turned tulip-shaped ends at both the yarn inlet and the yarn outlet.
5. A yarn guide sheave as claimed in claim 1, 2, 3 or 4, in which at least on threaded nut is moulded into the end of the sheave stem remote from the sheave head.
6. A yarn guide sheave substantially as hereinbefore described with reference to Figures 4 to 6 of the accompanying drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3129512A DE3129512C2 (en) | 1981-07-27 | 1981-07-27 | Thread guide nuts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2102457A true GB2102457A (en) | 1983-02-02 |
| GB2102457B GB2102457B (en) | 1984-08-15 |
Family
ID=6137804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08220613A Expired GB2102457B (en) | 1981-07-27 | 1982-07-15 | Yarn guide for flat knitting machine |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS5823945A (en) |
| DD (1) | DD202317A5 (en) |
| DE (1) | DE3129512C2 (en) |
| ES (1) | ES274612Y (en) |
| GB (1) | GB2102457B (en) |
| IT (1) | IT1152057B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2543176A1 (en) * | 1983-03-24 | 1984-09-28 | Stoll H Gmbh & Co | WIRE GUIDE FOR RECTILED KNITTING MACHINES |
| EP0683258A1 (en) * | 1994-05-16 | 1995-11-22 | MATEC S.r.l. | Impact protection device for a rod for positioning thread guides in a circular knitting machine |
| EP0768414A2 (en) * | 1995-10-16 | 1997-04-16 | H. Stoll GmbH & Co. | Thread guiding elements for thread guiding arm |
| GB2378188A (en) * | 2001-07-28 | 2003-02-05 | Griffith Textile Mach Ltd | Adjustable yarn tensioning and clamping device |
| CN102899798A (en) * | 2012-09-12 | 2013-01-30 | 冯加林 | Yarn feeder of Intarsia cross knitting machine |
| CN105113112A (en) * | 2015-09-02 | 2015-12-02 | 湖州南浔石淙盛艳丝绸有限公司 | Yarn guiding tube structure |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4130783C1 (en) * | 1991-09-16 | 1992-11-19 | Universal Maschinenfabrik Dr. Rudolf Schieber Gmbh & Co Kg, 7084 Westhausen, De | |
| DE4443921C1 (en) * | 1994-12-09 | 1996-05-02 | Schieber Universal Maschf | Thread guide |
| DE20117818U1 (en) | 2001-11-05 | 2002-04-11 | Dipl.-Ing. Hellmut Haufe GmbH & Co. KG, 61250 Usingen | wire guide |
| US9404206B2 (en) * | 2013-02-28 | 2016-08-02 | Nike, Inc. | Feeder for knitting machine having pushing member |
| EP3323921A1 (en) * | 2016-11-22 | 2018-05-23 | H. Stoll AG & Co. KG | Yarn guide for a knitting machine and flat knitting machine |
| CN115045032B (en) * | 2022-06-07 | 2023-11-21 | 常熟市益诚精密机械有限公司 | Computerized flat knitting machine convenient for thread feeding |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1804798U (en) * | 1959-11-20 | 1960-01-28 | Paliz Holding A G | FADENLÜHRERNUSSCHEN FOR KNITTING MACHINES. |
-
1981
- 1981-07-27 DE DE3129512A patent/DE3129512C2/en not_active Expired
-
1982
- 1982-07-15 GB GB08220613A patent/GB2102457B/en not_active Expired
- 1982-07-20 IT IT22468/82A patent/IT1152057B/en active
- 1982-07-21 JP JP57125938A patent/JPS5823945A/en active Granted
- 1982-07-26 ES ES1982274612U patent/ES274612Y/en not_active Expired
- 1982-07-26 DD DD82241947A patent/DD202317A5/en unknown
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2543176A1 (en) * | 1983-03-24 | 1984-09-28 | Stoll H Gmbh & Co | WIRE GUIDE FOR RECTILED KNITTING MACHINES |
| GB2137234A (en) * | 1983-03-24 | 1984-10-03 | Stoll & Co H | Yarn guide for flat knitting machine |
| EP0683258A1 (en) * | 1994-05-16 | 1995-11-22 | MATEC S.r.l. | Impact protection device for a rod for positioning thread guides in a circular knitting machine |
| US5491987A (en) * | 1994-05-16 | 1996-02-20 | Matec S.R.L. | Impact protection device for a rod for positioning thread guides in a circular knitting machine |
| EP0768414A2 (en) * | 1995-10-16 | 1997-04-16 | H. Stoll GmbH & Co. | Thread guiding elements for thread guiding arm |
| EP0768414A3 (en) * | 1995-10-16 | 1998-08-12 | H. Stoll GmbH & Co. | Thread guiding elements for thread guiding arm |
| GB2378188A (en) * | 2001-07-28 | 2003-02-05 | Griffith Textile Mach Ltd | Adjustable yarn tensioning and clamping device |
| GB2378188B (en) * | 2001-07-28 | 2005-03-30 | Griffith Textile Mach Ltd | A creel |
| CN102899798A (en) * | 2012-09-12 | 2013-01-30 | 冯加林 | Yarn feeder of Intarsia cross knitting machine |
| CN105113112A (en) * | 2015-09-02 | 2015-12-02 | 湖州南浔石淙盛艳丝绸有限公司 | Yarn guiding tube structure |
Also Published As
| Publication number | Publication date |
|---|---|
| DD202317A5 (en) | 1983-09-07 |
| ES274612U (en) | 1984-04-16 |
| JPS5823945A (en) | 1983-02-12 |
| JPS6220297B2 (en) | 1987-05-06 |
| ES274612Y (en) | 1984-12-01 |
| GB2102457B (en) | 1984-08-15 |
| DE3129512C2 (en) | 1984-06-07 |
| IT8222468A0 (en) | 1982-07-20 |
| DE3129512A1 (en) | 1983-03-10 |
| IT1152057B (en) | 1986-12-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |