GB2288819A - Double-cylinder circular knitting machine - Google Patents
Double-cylinder circular knitting machine Download PDFInfo
- Publication number
- GB2288819A GB2288819A GB9508254A GB9508254A GB2288819A GB 2288819 A GB2288819 A GB 2288819A GB 9508254 A GB9508254 A GB 9508254A GB 9508254 A GB9508254 A GB 9508254A GB 2288819 A GB2288819 A GB 2288819A
- Authority
- GB
- United Kingdom
- Prior art keywords
- needle cylinder
- carrying flange
- cylinder
- double
- knitting machine
- 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 description 14
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 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
- D04B15/14—Needle cylinders
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B9/00—Circular knitting machines with independently-movable needles
- D04B9/10—Circular knitting machines with independently-movable needles with two needle cylinders for purl work or for Links-Links loop formation
Description
2288819 DOUBLE-CYLINDER CIRCULAR KNITTING MACHINE The present invention
relates to a doublecylinder circular knitting machine for producing hosiery goods etc, provided with a carrying flange for the upper needle cylinder, a carrying flange for the bottom needle cylinder and a driving device for the upper needle cylinder.
It is known that double-cylinder circular is knitting machines producing hosiery goods are designed so that the bottom and the upper cylinders are mounted on carrying flanges that are joined together by pillars. The carrying flange for the bottom needle cylinder can be mounted directly as a part of the machine frame. The vertical shaft used to drive the upper needle cylinder also carried by both said flanges.
It is a drawback of this design that a fault in the knocking over or press-off devices is sometimes observed in the operation of this machine. In this case it is necessary to extract the upper needle cylinder which requires a lengthy disassembly of the controlling elements, cam casings and the needle cylinder itself.
It is an object of the present invention to overcome the above mentioned drawback.
According to the present invention there is provided a double-cylinder circular knitting machine for producing hosiery goods etc, provided with a carrying flange for the upper needle cylinder, a carrying flange for the bottom needle cylinder and a driving device for the upper needle cylinder, wherein the carrying flange of the upper needle cylinder is mounted swingably on a bracket fixed to the carrying flange of the bottom needle cylinder.
In a preferred embodiment of the present invention, the carrying flange for the upper needle cylinder is mounted swingably on a vertical pin mounted on the bracket, whereby it is supported on the horizontal surface formed in the upper part of the bracket.
In another preferred embodiment of the present invention, an arcuate through-groove having its centre coincident with the swinging point of the upper carrying flange and passed through by the shaft of the driving device of the upper needle cylinder is formed in the carrying flange for the upper needle cylinder.
In another preferred embodiment of the present invention, a fixed gear is situated at the end of the shaft of the driving device of the upper needle cylinder and is engaged with a gear arranged in the upper needle cylinder.
In another preferred embodiment, a second arcuate through-groove is formed co-axially with the through-groove in the carrying flange of the upper needle cylinder, and is entered into by a vertical arresting pin mounted on the bracket.
An embodiment of the invention is described below with reference to the accompanying drawings in which:
Figure 1 shows a schematic arrangement of the needle cylinders of a double-cylinder knitting machine; and Figure 2 shows a schematic top view of the knitting head of the machine and the dashed lines show the upper needle cylinder swung to the side.
A double-cylinder circular knitting machine is provided with a bottom needle cylinder (1) and an upper needle cylinder (2). The bottom needle cylinder (1) is supported on a bottom carrying flange (3) mounted on the frame (4) of the machine. A bracket (5) is fixed on the bottom carrying flange (3). The carrying flange (6) for the upper needle cylinder (2) which is mounted here is supported on the upper horizontal surface (51) of the 1 bracket (5).
The carrying flange (6) is normally fixed to the surface (51) by screws (8), and is further mounted on a vertical pin (9) fixed in the bracket (5) so that it protrudes above the horizontal surface (51). This vertical pin (9) is located on the perpendicular line (K) erected from the centre of the axis of the vertical shaft (10) of the driving device of the upper needle cylinder (2) to the longitudinal axis (61) of the upper carrying flange (6).
The shaft (10) passes through the bottom carrying flange (3), the bracket (5) and the upper carrying flange (6), where it is provided with a gear (11) at its upper end which is engaged with a gear (12) of the is upper needle cylinder (2). This pair of gears is placed above the upper carrying flange (6). The shaft (10) passes through a first arcuate through-groove (52) which has its centre of curvature co-incident with the centre of the vertical pin (9). Further, a second arcuate throughgroove (53) is formed co-axially with the first arcuate through- groove (52) at a greater diameter in the upper carrying flange (6). This groove (53) is entered into by an arresting pin (54) mounted on the bracket (5). The grooves (52) and (53) are so formed that they extend from the shaft (10) and the arresting pin (54) respectively in the counterclockwise direction through an arc such that sufficient swinging of the upper needle cylinder (2) is ensured.
If it is necessary to replace the press-off rings, the operator of this machine proceeds as follows. The screws (8) are made loose and extracted. Thereby, the upper carrying flange (6) is made loose. Now, the upper carrying flange (6) is pushed to the side by hand together with the upper needle cylinder (2) and the cam casings, (of course after the respective cam head parts, eg. the pneumatic hoses or stranded wires controlling the cams are released). The pushing to the side is possible in the clockwise direction to a position where the second end of the through-groove (53) meets the arresting pin (54), as is shown by dashed lines in Figure 2. After the repair the upper carrying flange (6) is swung back until the first end of the through- groove (53) bears against the arresting pin (54).
Various modifications are possible within the scope of the present invention. For example, the vertical pin (9) can be integral with the carrying flange (6) and it can be journalled in the bracket (5). The arresting of the upper carrying flange positions can be also so designed that the arresting pin (54) is formed in the upper carrying flange (6) and the groove is formed in the horizontal surface (51) of the bracket (5).
Claims (6)
1. A double-cylinder circular knitting machine for producing hosiery goods etc, provided with a carrying flange for the upper needle cylinder, a carrying flange for the bottom needle cylinder and a driving device for the upper needle cylinder, wherein the carrying flange of the upper needle cylinder is mounted swingably on a bracket fixed to the carrying flange of the bottom needle cylinder.
2. A double-cylinder circular knitting machine according to Claim 1, wherein the carrying flange for the upper needle cylinder is mounted swingably on a vertical pin mounted on the bracket, whereby it is supported on the horizontal surface formed on the upper part of the bracket.
3. A double-cylinder circular knitting machine according to claim 1 or Claim 2, wherein a first arcuate through-groove having its centre co-incident with the swinging point of said upper carrying flange and passed through by a shaft of the drive device is formed in the upper carrying flange.
4. A double-cylinder circular knitting machine according to any one of Claims 1 to 3, wherein a first gear which is fixed to the end of a shaft of the driving device of said upper needle cylinder, is engaged with a second gear arranged in the upper needle cylinder.
5. A double-cylinder circular knitting machine according to Claim 3, wherein a second arcuate through groove is formed co-axially with the first arcuate through-groove in the carrying flange of the upper needle cylinder and is entered into by a vertical arresting pin mounted on the bracket.
6. A double-cylinder circular knitting machine substantially as described herein, with reference to the accompanying drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CZ941016A CZ283466B6 (en) | 1994-04-27 | 1994-04-27 | Double-cylinder circular knitting machine |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB9508254D0 GB9508254D0 (en) | 1995-06-14 |
| GB2288819A true GB2288819A (en) | 1995-11-01 |
| GB2288819B GB2288819B (en) | 1997-11-19 |
Family
ID=5462627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9508254A Expired - Fee Related GB2288819B (en) | 1994-04-27 | 1995-04-24 | Double-cylinder circular knitting machine |
Country Status (4)
| Country | Link |
|---|---|
| CZ (1) | CZ283466B6 (en) |
| DE (1) | DE19514622A1 (en) |
| GB (1) | GB2288819B (en) |
| IT (1) | IT1274391B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITMI20111681A1 (en) * | 2011-09-19 | 2013-03-20 | Lonati Spa | CIRCULAR MACHINE WITH DOUBLE CYLINDER FOR THE PRODUCTION OF TUBULAR KNITTED ITEMS, PARTICULARLY FOR THE PRODUCTION OF SOCKS OR SIMILAR. |
| US20130233024A1 (en) * | 2010-12-02 | 2013-09-12 | Ettore Lonati | Double-cylinder circular machine, particularly for knitting hosiery items or the like, with simplified actuation mechanism |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19653761B4 (en) * | 1996-12-20 | 2004-09-16 | Sipra Patententwicklungs- Und Beteiligungsgesellschaft Mbh | Circular knitting machine with interchangeable needle carrier, e.g. B. needle cylinder |
| CZ296770B6 (en) * | 1999-11-01 | 2006-06-14 | Circular knitting machine | |
| CN105483922A (en) * | 2016-02-26 | 2016-04-13 | 福建祥锦实业有限公司 | Double-needle-cylinder circular knitting machine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB372510A (en) * | 1931-04-02 | 1932-05-12 | Spiers William Ltd | Improvements in or relating to circular knitting machines |
| GB462614A (en) * | 1935-10-22 | 1937-03-12 | Spiers William Ltd | Improvements in or relating to circular knitting machines |
| GB778155A (en) * | 1955-04-06 | 1957-07-03 | Bentley Eng Co Ltd | Improvements in or relating to circular knitting machines |
| GB992505A (en) * | 1961-06-21 | 1965-05-19 | Sdruzeni Podniku Textilniho St | Improvements in or relating to knitting machines |
-
1994
- 1994-04-27 CZ CZ941016A patent/CZ283466B6/en not_active IP Right Cessation
-
1995
- 1995-04-24 GB GB9508254A patent/GB2288819B/en not_active Expired - Fee Related
- 1995-04-25 DE DE19514622A patent/DE19514622A1/en not_active Withdrawn
- 1995-04-27 IT ITMI950846A patent/IT1274391B/en active IP Right Grant
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB372510A (en) * | 1931-04-02 | 1932-05-12 | Spiers William Ltd | Improvements in or relating to circular knitting machines |
| GB462614A (en) * | 1935-10-22 | 1937-03-12 | Spiers William Ltd | Improvements in or relating to circular knitting machines |
| GB778155A (en) * | 1955-04-06 | 1957-07-03 | Bentley Eng Co Ltd | Improvements in or relating to circular knitting machines |
| GB992505A (en) * | 1961-06-21 | 1965-05-19 | Sdruzeni Podniku Textilniho St | Improvements in or relating to knitting machines |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130233024A1 (en) * | 2010-12-02 | 2013-09-12 | Ettore Lonati | Double-cylinder circular machine, particularly for knitting hosiery items or the like, with simplified actuation mechanism |
| JP2014502318A (en) * | 2010-12-02 | 2014-01-30 | ロナティ エッセ．ピ．ア． | A double cylinder circular machine with a simplified actuating mechanism, especially for knitting hosiery etc. |
| US8833108B2 (en) * | 2010-12-02 | 2014-09-16 | Lonati S.P.A. | Double-cylinder circular machine, particularly for knitting hosiery items or the like, with simplified actuation mechanism |
| ITMI20111681A1 (en) * | 2011-09-19 | 2013-03-20 | Lonati Spa | CIRCULAR MACHINE WITH DOUBLE CYLINDER FOR THE PRODUCTION OF TUBULAR KNITTED ITEMS, PARTICULARLY FOR THE PRODUCTION OF SOCKS OR SIMILAR. |
| WO2013041267A1 (en) * | 2011-09-19 | 2013-03-28 | Lonati S.P.A. | Double-cylinder circular machine for producing tubular knitted manufactures, particularly for making hosiery items or the like |
| US9481952B2 (en) | 2011-09-19 | 2016-11-01 | Lonati S.P.A. | Double-cylinder circular machine for producing tubular knitted manufactures, particularly for making hosiery items or the like |
| EA027003B1 (en) * | 2011-09-19 | 2017-06-30 | ЛОНАТИ С.п.А. | Double-cylinder circular machine |
Also Published As
| Publication number | Publication date |
|---|---|
| DE19514622A1 (en) | 1995-11-09 |
| GB2288819B (en) | 1997-11-19 |
| GB9508254D0 (en) | 1995-06-14 |
| ITMI950846A1 (en) | 1996-10-27 |
| CZ283466B6 (en) | 1998-04-15 |
| IT1274391B (en) | 1997-07-17 |
| CZ101694A3 (en) | 1995-11-15 |
| ITMI950846A0 (en) | 1995-04-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20000424 |