GB2193509A - Filament handling apparatus - Google Patents
Filament handling apparatus Download PDFInfo
- Publication number
- GB2193509A GB2193509A GB08614220A GB8614220A GB2193509A GB 2193509 A GB2193509 A GB 2193509A GB 08614220 A GB08614220 A GB 08614220A GB 8614220 A GB8614220 A GB 8614220A GB 2193509 A GB2193509 A GB 2193509A
- Authority
- GB
- United Kingdom
- Prior art keywords
- filament
- drum
- tension
- wetting
- bath
- 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.)
- Withdrawn
Links
- 238000009736 wetting Methods 0.000 claims abstract description 27
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- 238000004804 winding Methods 0.000 claims description 13
- 239000011347 resin Substances 0.000 claims description 12
- 229920005989 resin Polymers 0.000 claims description 12
- 239000000835 fiber Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 238000005192 partition Methods 0.000 claims description 4
- 206010043268 Tension Diseases 0.000 claims description 2
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 238000005461 lubrication Methods 0.000 claims description 2
- 238000012986 modification Methods 0.000 claims description 2
- 230000004048 modification Effects 0.000 claims description 2
- 238000012856 packing Methods 0.000 claims description 2
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
- B65H59/10—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by devices acting on running material and not associated with supply or take-up devices
- B65H59/16—Braked elements rotated by material
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B15/00—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours
- D06B15/08—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours by scraping
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Treatment Of Fiber Materials (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
Filament 10 is passed over and in contact with an arcuate extent of a rotatable drum 13 which has an adjustable brake 20 to impart a tension to the filament. The tension in the filament leaving the drum is sensed by device 15 which may be operatively connected to feed rolls 11 to maintain the tension at a desired value. The filament may pass to rolls 11 from a wetting bath. Blades 40, 17 may scrape wetting medium from the filament and drum. The drum may be heated eg by shroud 30 and the heating controlled in dependence on the sensed tension. <IMAGE>
Description
SPECIFICATION
Filament handling apparatus
This invention relates to filament handling apparatus.
According to this invention filament handling apparatus comprises a rotatable drum, means for applying a resistance to rotation of the drum, and means for guiding a filament in contact with the drum.
There may be feed rolls for feeding the filament to the drum, means responsive to tension in the filament leaving the drum for controlling the rotation of the feed rolls in response to said tension.
Means may be provided for adjusting said resistance.
The apparatus may include a winding device arranged to draw the filament over the drum.
The drum may be heated. The tension responsive -means may be operatively converted to a heater for the drum to control the heating in dependence on the tension.
The invention may be performed in various ways and one specific embodiment with possible modifications will now be described by way of example with reference to the accompanying drawing which is a schematic side view of filament tensioning apparatus.
European Patent specification 120674 describes an apparatus for treating a filament with a wetting medium comprising a bath for the wetting medium, a roller guide assembly having a plurality of staggered upper and lower rollers arranged at one side of the bath, a filter assembly arranged at the opposite side of the bath, an intervening partition plate between the assemblies whereby drawing a fibre through the-bath and the roller guide assembly induces a current flow in the medium to cause medium to circulate about the partition and through the filter assembly. The filter assembly is removable
The present invention is particularly suitable for use with such apparatus but can be used in other filament handling arrangements.
A filament- 10, for example leaving a wetting apparatus as mentioned abovei passes through squeeze rollers 11 to remove wetting medium from the filament surface, passes round rotatable guide roller 12, around, and in contact with part of, rotatable drum 13, around rotatable guide roller 14 and then through a tension monitor device 15 and thence to, for example, a winding device for winding the filament on a mandrel.
Feed rolls in the wetting apparatus feed the filament forwards and the winding device pulls the filament over the drum 13 which is supported in á frame 16.
A scraper or doctor blade 17 is carried on an arm 18 pivoted at 19 in frame 16 and serves to remove wetting medium from the surface 13a of the drum 13.
The drum 13 is provided with an adjustable brake 20 which is arranged to provide a desired tension in the filament leaving the drum
13. This tension is thus greater than the ten
sion in the filament in the wetting bath. This greater tension also serves to increase the width of the filament, which need not be circular in cross-section.
The drum 13 is arranged to impose a fixed
but adjustable load on the filament.
A feedback connection 22 including a transducer 23 responsive to the tension in the filament, connects the monitor 15 and the feed rolls in the bath and/or the winding device so that the feed rolls and/or the winding device are driven in a manner to assist in maintaining the filament tension uniform at the desired, but adjustable, value.
The arrangement shown in the drawing can be enclosed in a housing to control the temperature and atmosphere.
In a preferred arrangement the drum 13 is heated. For example a hot air heater shroud 30 can be placed over the drum or infra-red or other heaters could be used inside the drum to heat the drum. Heating the drum permits a lower temperature to be used for the liquid in the wetting bath giving improved lubrication of the filaments and reducing damage to the filaments; the useful life of the resin (wetting medium) in the wetting bath is increased.
The temperature of the drum can be raised for a short period to reduce the viscosity of the resin in contact with the drum and assist in removing excess resin.
By controlling the temperature of the drum it is possible to control the amount of resin on the fibre or filament.
The tension monitor device 15 can be operatively linked to the drum heater so that a desired product is obtained; thus the width of the tow of fibre or filament can be wider if the resin has a higher viscpsity at the drum and in some cases the width of tow can be proportionai to the viscosity.
The tow cross-section or packing factor may be for example round, square, rectangular, flat and the duration and extent of heating is varied for various cross-sections.
A scraper element 40 may be used to scrape unwanted resin from the moving tow or filament.
1. A method of handling filament comprising moving a filament forwards in contact with an arcuate extent of a rotatable member, and causing the rotatable member to resist rotation thereof so as to apply a tension to the filament.
2. A method as claimed in claim 1, comprising wetting the filament prior to engagement with the rotatable member.
3. A method of handling filament substan
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (12)
1. A method of handling filament comprising moving a filament forwards in contact with an arcuate extent of a rotatable member, and causing the rotatable member to resist rotation thereof so as to apply a tension to the filament.
2. A method as claimed in claim 1, comprising wetting the filament prior to engagement with the rotatable member.
3. A method of handling filament substan tially as hereinbefore described.
4. Filament handling apparatus comprising a rotatable drum, means for applying a resistance to rotation of the drum, and means for guiding a filament in contact with an arcuate extent of the drum.
5. Apparatus as claimed in claim 4 comprising means for adjusting said resistance.
6. Apparatus as claimed in claim 4 or claim 5, comprising winding device for drawing the filament over the drum.
7. Apparatus as claimed in any of claims 4 to 6, comprising feed rolls for feeding the filament to the drum, and means responsive to tension in the filament leaving the drum for controlling the rotation of the feed rolls in response to said tension.
8. Apparatus as claimed in any one of claims 4 to 7, comprising means for heating the drum.
9. Apparatus as claimed in claim 8 when appendant to claim 7, in which the tension responsive means is operatively connected to a heater for the drum to control the heating in dependence on the tension.
10. Apparatus as claimed in any of claims 4 to 9, comprising means for wetting the filament prior to engagement with the drum.
11. Apparatus as claimed in claim 10, in which the wetting means comprises a wetting bath through which the filament passes.
12. Filament handling apparatus substantially as hereinbefore described with reference to and as illustrated in- the accompanying drawing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB08614220A GB2193509A (en) | 1986-06-11 | 1986-06-11 | Filament handling apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB08614220A GB2193509A (en) | 1986-06-11 | 1986-06-11 | Filament handling apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB8614220D0 GB8614220D0 (en) | 1986-07-16 |
| GB2193509A true GB2193509A (en) | 1988-02-10 |
Family
ID=10599304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08614220A Withdrawn GB2193509A (en) | 1986-06-11 | 1986-06-11 | Filament handling apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2193509A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116374741B (en) * | 2023-06-02 | 2023-07-28 | 山东森荣新材料股份有限公司 | Filament winding machine |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB770037A (en) * | 1954-02-13 | 1957-03-13 | Dunlop Rubber Co | Apparatus for tensioning filamentary material |
| GB848756A (en) * | 1956-01-24 | 1960-09-21 | Deering Milliken Res Corp | Methods and apparatus for producing staple fibres |
| GB929697A (en) * | 1961-02-07 | 1963-06-26 | Goodyear Aircraft Corp | Filament tension apparatus and method |
| GB983286A (en) * | 1960-03-04 | 1965-02-17 | Ernest Muller | Improvements in or relating to winding and reeling machines |
| GB993350A (en) * | 1963-01-05 | 1965-05-26 | Arenco Ab | Braking device for a wind-off reel |
| GB1124338A (en) * | 1965-06-08 | 1968-08-21 | Fairweather Harold G C | Thread tension device for sewing machines |
| GB1209315A (en) * | 1967-04-21 | 1970-10-21 | English Electric Co Ltd | Fluidic operated thread tensioning devices |
| GB1434922A (en) * | 1972-03-27 | 1976-05-12 | Atomic Energy Authority Uk | Apparatus for tensioning fibrous material |
-
1986
- 1986-06-11 GB GB08614220A patent/GB2193509A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB770037A (en) * | 1954-02-13 | 1957-03-13 | Dunlop Rubber Co | Apparatus for tensioning filamentary material |
| GB848756A (en) * | 1956-01-24 | 1960-09-21 | Deering Milliken Res Corp | Methods and apparatus for producing staple fibres |
| GB983286A (en) * | 1960-03-04 | 1965-02-17 | Ernest Muller | Improvements in or relating to winding and reeling machines |
| GB929697A (en) * | 1961-02-07 | 1963-06-26 | Goodyear Aircraft Corp | Filament tension apparatus and method |
| GB993350A (en) * | 1963-01-05 | 1965-05-26 | Arenco Ab | Braking device for a wind-off reel |
| GB1124338A (en) * | 1965-06-08 | 1968-08-21 | Fairweather Harold G C | Thread tension device for sewing machines |
| GB1209315A (en) * | 1967-04-21 | 1970-10-21 | English Electric Co Ltd | Fluidic operated thread tensioning devices |
| GB1434922A (en) * | 1972-03-27 | 1976-05-12 | Atomic Energy Authority Uk | Apparatus for tensioning fibrous material |
Also Published As
| Publication number | Publication date |
|---|---|
| GB8614220D0 (en) | 1986-07-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |