GB2132646A - Yarn winding - Google Patents
Yarn winding Download PDFInfo
- Publication number
- GB2132646A GB2132646A GB08334519A GB8334519A GB2132646A GB 2132646 A GB2132646 A GB 2132646A GB 08334519 A GB08334519 A GB 08334519A GB 8334519 A GB8334519 A GB 8334519A GB 2132646 A GB2132646 A GB 2132646A
- Authority
- GB
- United Kingdom
- Prior art keywords
- yarn
- winding
- spool
- cradle
- electromagnet
- 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- Withdrawn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
- 238000004804 winding Methods 0.000 title claims abstract description 58
- 238000012806 monitoring device Methods 0.000 claims abstract description 13
- 239000004753 textile Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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
- B65H59/38—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
- B65H59/384—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension using electronic means
- B65H59/385—Regulating winding speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
- B65H63/02—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material
- B65H63/024—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials
- B65H63/036—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the combination of the detecting or sensing elements with other devices, e.g. stopping devices for material advancing or winding mechanism
- B65H63/0364—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the combination of the detecting or sensing elements with other devices, e.g. stopping devices for material advancing or winding mechanism by lifting or raising the package away from the driving roller
- B65H63/0366—Braking means for the raised or lifted package
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/31—Textiles threads or artificial strands of filaments
Landscapes
- Engineering & Computer Science (AREA)
- Quality & Reliability (AREA)
- Winding Filamentary Materials (AREA)
- Tension Adjustment In Filamentary Materials (AREA)
Abstract
Yarn winding apparatus comprises a winding cylinder (4), a bobbin cradle (3) arranged to co-operate with the winding cylinder (4, 5) during winding of the yarn onto a bobbin (1) carried by the cradle (3), yarn traverse means (6), for displacing the yarn axially to and fro along the bobbin (1) during a winding operation, a spool rotatably mounted between the arms of the cradle (3), bearing plates (2) secured one at each end of the spool (13), and each rotatably mounted on a respective one of the cradle arms, a yarn tension monitoring device (7, 8) arranged to monitor the tension in the yarn as it is conveyed to the spool (13), and a braking device operable by the monitoring device in order to control the rotation of the spool, the braking device comprising: an electromagnet fixedly carried by one of the cradle arms, and an armature carried by the corresponding bearing plate, said armature being movable towards the electromagnet in order to exert a braking action on the spool when the electromagnet is energised under the control of the monitoring device (7, 8). <IMAGE>
Description
SPECIFICATION
Yarn winding apparatus
This invention relates to yarn winding
apparatus for use with textile machinery.
An apparatus is known for yarn winding, used for the regulation of the tension in yarns during winding. In this known apparatus, the driving of a winding cylinder of the textile machine is achieved
by an electromagnet (built-in), immovably fixed to the winding shaft on which the winding cylinder is
mounted. The winding cylinder, made of soft
magnetic material, serves to close conductance to the electromagnet. The electromagnet is fed by
contact rings and brushes, and a rheostat is
included in its circuit. A movable threadguide,
representing a two-arm lever with an antiload,
through which passes the wound thread, is connected with bearings to the body of the apparatus. A transducer is installed upon the thread-guide, and comprises a rheostat with a glass tube with mercury and a conductor with great resistance, immersed in it.
The disadvantage of this known apparatus are its large overall dimensions, the presence of inertia and instability during the working process, large
reactive losses, as well as laying of the yarns one upon the other (also called "picture winding") during their winding.
Another known apparatus has been designed so as to avoid the laying of the yarns one upon the other. This comprises a winding shaft with winding cylinder immovably fixed upon it. A wound bobbin carried by a bobbin arm is pressed against the winding cylinder. Near to the winding cylinder there is an axially movable threadguide, guiding the yarn towards the bobbin. Parallel to the winding cylinder, the apparatus has a separate channel cylinder for the driving of the threadguide.
The channel cylinder is connected through (via) a toothed belt to the shaft of the winding cylinder.
To the guidable part of the toothed belt there is a tensioning roller, and to the guiding part there is situated a periodically functioning pressing roller.
The periodic pressing is achieved by an independent device with a lever system and a transmission reduction gear, driven by an independent electrically operated driver.
The disadvantages of this known apparatus are that it has a complex (sophisticated) kinematics.
Also, it is not possible to regulate the tension of the thread during its winding, by that apparatus.
The present invention has been developed primarily, though not exclusively, with a view to create a simple apparatus for yarn winding, keeping a constant tension of the wound yarn, and simultaneously achieving a traversing movement of the yarn on the bobbin so as to prevent laying of yarns one upon the other with small inertia and overall dimensions of the apparatus, stability during the winding operations and small reactive losses.
According to the invention there is provided yarn winding apparatus comprising a winding cylinder, a bobbin cradle arranged to co-operate with the winding cylinder during winding of the yarn onto a bobbin carried by the cradle, yarn traverse means for displacing the yarn axially to and fro along the bobbin during a winding operation, a spool rotatably mounted between the arms of the cradle, bearing plates secured one at each end of the spool and each rotatably mounted on a respective one of the cardle arms, a yarn tension monitoring device arranged to monitor the tension in the yarn as it is conveyed to the spool, and a braking device operable by the monitoring device in order to control the rotation of the spool, the braking device comprising::
an electromagnet fixedly carried by one of the cradle arms, and an armature carried by the corresponding bearing plate, said armature being movable towards the electromagnet in order to exert a braking action on the spool when the electromagnet is energised under the control of the monitoring device.
The invention will now be described in more detail, by way of example only, with reference to the accompanying drawings, in which:
Figure 1 is a schematic illustration of a first embodiment of yarn winding apparatus according to the invention;
Figure 2 is a schematic illustration of a second embodiment of yarn winding apparatus; and
Figure 3 is a sectional illustration of a braking device for use with winding spools provided in the apparatus of Figure 1 or 2.
Referring now to Figure 1 of the drawings, there is shown yarn winding apparatus comprising a winding cylinder 4, a bobbin cardle 3 arranged to co-operate with the winding cylinder 4 during winding of the yarn onto a bobbin 1 carried by the arms of the cradle, and yarn traverse means for displacing the yarn axially to and fro along the bobbin 1 during a winding operation, such means taking the form of yarn-guiding channels 6 provided in the outer periphery of the winding cylinder 4.
A spool 13 (see Fig. 3) is rotatably mounted between the arms of the cradle 3 by means of bearing plates 2 arranged one at each end of the spool 13 and each rotatably mounted on a respective one of the cradle arms.
A yarn tension monitoring device is arranged to monitor yarn tension as it is conveyed to the spool 1 3 and comprises a jack with a feeler for the yarn.
Thus, the device comprises a yarn guide 7 which is movable according to yarn tension, and a transducer 8 which is responsive to the movements of the guide 7 so as to issue an appropriate signal to a braking device (described in more detail below) which controls the rotation of the spool 1 3 (which is normally driven via the peripheral contact of bobbin 1 with the winding cylinder 4).
During a winding operation, yarn 1 5 is conveyed to the bobbin 1 via the tensionmonitoring guide 7 after the cradle 3 (which is movably connected to the body of the textile machinery in a manner which is not shown in detail) has pressed the bobbin 1 into contact with the winding cylinder 4. Traversing of the yarn on the bobbin is carried out by the channels 6.
An alternative arrangement of yarn traversing is shown in Figure 2, in which there is a plainsurfaced winding cylinder 5 and an axially displaceable yarn guide 1 6 which moves to and fro alongside the winding cylinder 5.
The braking device is operated by the monitoring device 7, 8 in order to control the rotation of the bobbin 1 in dependence upon changes in yarn tension. The braking device comprises an electromagnet 9 which is fixedly carried by one of the cradle arms, and an armature in the form of an anchor 11 which is carried by the corresponding bearing plate 2. The armature is movable towards the electromagnet in order to exert a braking action on the spool 13 when the electromagnet is energised under the control of the monitoring device 7, 8. The armature is axially movably mounted on one or more axial projections 10 on the bearing plate 2, and an intermediate brake disc 12 is arranged between the armature and the electromagnet.The spool 13 is fixed to the bearing plate 2 by means of a fixing element 14 which is fixedly carried by the bearing plate 2 and comprises a pointed pin, a shown.
Alternatively, the fixing element may comprise an elastic friction cam or an elastic O-ring carried fixedly by the bearing plate.
The function of the mechanism is as follows: upon an increase of the tension of the wound thread or yarn, the guide 7 is pivoted. After a given angle of turning, the transducer 8 sends a signal for switching-off the braking device. The speed of winding is therefore increased and the guide 7 then pivots in an opposite direction. At a given angle of turning of the guide 7, the braking device is switched on and the cycle is repeated. Thus there is provided a monitoring system with a reverse connection, by which there is kept a constant tension of the wound thread. As a result of the created braking moment, at every cycle, the bobbin slips upon the winding cylinder 4 or 5. The guiding channels 6 of the channel cylinder 4, or the threadguide 1 6 moving along the smooth winding cylinder 5, replace the wound thread 1 5 in an axial direction. As a result of the slipping of the bobbin relative to the cylinder, the winding is desynchronised and a displacement of the winding is created, and thus there is avoided their laying one upon the other, respectively so-called "picture winding". The intermediate disc 12 is made of softer material than that of the anchor 11 and the electromagnet 9, so that it can be changed, as necessary, when it wears out.
Claims (11)
1. Yarn winding apparatus comprising a winding cylinder, a bobbin cradle arranged to cooperate with the winding cylinder during winding of the yarn onto a bobbin carried by the cradle, yarn traverse means for displacing the yarn axially to and fro along the bobbin during a winding operation, a spool rotatably mounted between the arms of the cradle, bearing plates secured one at each end of the spool and each rotatably mounted on a respective one of the cradle arms, a yarn tension monitoring device arranged to monitor the tension in the yarn as it is conveyed to the spool, and a braking device operable by the monitoring device in order to control the rotation of the spool, the braking device comprising::
an electromagnet fixedly carried by one of the cradle arms, and an armature carried by the corresponding bearing plate, said armature being movable towards the electromagnet in order to exert a braking action on the spool when the electromagnet is energised under the control of the monitoring device.
2. Apparatus according to claim 1, in which the armature comprises an anchor which is axially movably mounted on one or more axial projections on the respective bearing plate.
3. Apparatus according to claim 2, including an intermediate braking disc arranged between the anchor and the electromagnet.
4. Apparatus according to any one of claims 1 to 3, in which the monitoring device comprises a yarn guide movable according to varying yarn tension and a transducer connected to the electromagnet to control energisation or deenergisation of the latter according to the tensioninduced movements of the yarn guide.
5. Apparatus according to any one of claims 1 to 4, in which the yarn traverse means comprises winding channels formed in the winding cylinder.
6. Apparatus according to any one of claims 1 to 4, in which the yarn traverse means comprises a yarn guide which is axially displaceable alongside a plane-surfaced winding cylinder.
7. Apparatus according to any one of claims 1 to 6, in which the spool is fixed to at least the bearing plate provided with the armature by means of a fixing element.
8. Apparatus according to claim 7, in which the fixing element comprises a pointed pin fixedly carried by the bearing plate.
9. Apparatus according to claim 7, in which the fixing element comprises an elastic friction cam fixedly carried by the bearing plate.
10. Apparatus according to claim 7, in which the fixing element comprises an elastic O-ring fixedly carried by the bearing plate.
11. Apparatus according to claim 1 and substantially as hereinbefore described with reference to and as shown in Figures 1 and 3, or
Figures 2 and 3 of the accompanying drawings.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BG8259117A BG40045A1 (en) | 1982-12-29 | 1982-12-29 | Device for yarn winding |
Publications (2)
Publication Number | Publication Date |
---|---|
GB8334519D0 GB8334519D0 (en) | 1984-02-01 |
GB2132646A true GB2132646A (en) | 1984-07-11 |
Family
ID=3911562
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB08334519A Withdrawn GB2132646A (en) | 1982-12-29 | 1983-12-29 | Yarn winding |
Country Status (4)
Country | Link |
---|---|
BG (1) | BG40045A1 (en) |
DE (1) | DE3347308A1 (en) |
GB (1) | GB2132646A (en) |
IT (1) | IT8349588A0 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008049487A1 (en) * | 2006-10-25 | 2008-05-02 | Oerlikon Textile Gmbh & Co. Kg | Bobbin brake for a winding apparatus of a textile machine which produces crosswound bobbins |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3326217A1 (en) * | 1983-07-21 | 1985-01-31 | W. Schlafhorst & Co, 4050 Mönchengladbach | METHOD AND DEVICE FOR AVOIDING IMAGE WINDINGS WHILE WINDING A CROSS COIL |
DE3521152C2 (en) * | 1985-06-13 | 1996-05-30 | Schlafhorst & Co W | Method and device for avoiding image winding when winding a cheese |
DE4034057A1 (en) * | 1990-10-26 | 1992-04-30 | Schlafhorst & Co W | Speed control of spool winding system - has control to eliminate effect of remanence on braking action |
CN113387233B (en) * | 2021-06-28 | 2022-05-24 | 中铁工程装备集团有限公司 | Cable drum tension monitoring method and device |
-
1982
- 1982-12-29 BG BG8259117A patent/BG40045A1/en unknown
-
1983
- 1983-12-27 IT IT8349588A patent/IT8349588A0/en unknown
- 1983-12-28 DE DE19833347308 patent/DE3347308A1/en not_active Withdrawn
- 1983-12-29 GB GB08334519A patent/GB2132646A/en not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008049487A1 (en) * | 2006-10-25 | 2008-05-02 | Oerlikon Textile Gmbh & Co. Kg | Bobbin brake for a winding apparatus of a textile machine which produces crosswound bobbins |
Also Published As
Publication number | Publication date |
---|---|
GB8334519D0 (en) | 1984-02-01 |
BG40045A1 (en) | 1986-10-15 |
DE3347308A1 (en) | 1984-07-05 |
IT8349588A0 (en) | 1983-12-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4789107A (en) | Process and apparatus for winding a thread supplied at a constant speed onto a cross wound bobbin | |
TR199802302A2 (en) | Process and winding device for winding a continuous incoming thread. | |
US3165274A (en) | Yarn winding apparatus | |
US3047247A (en) | Apparatus for producing wound bobbins with controlled thread tension | |
US3966133A (en) | Tension controlling apparatus | |
US4089480A (en) | Winding apparatus for friction-driven conical cross-wound coils | |
US4083505A (en) | Spinning machine with thread applying device | |
US3847099A (en) | Ribbon feeding attachment for sewing machines | |
EP0128101B1 (en) | Method and apparatus for switching yarn in turret-type winder | |
GB2132646A (en) | Yarn winding | |
US3717311A (en) | Apparatus for packaging linear material | |
GB2060721A (en) | Apparatus for applying paraffin to yarn | |
US3779472A (en) | Surface driven winder | |
US3036421A (en) | Spindle drive control | |
US3687384A (en) | Thread delivery and storage device | |
US2985393A (en) | Winding machine for the production of bobbins with predetermined thread tension overthe bobbin run | |
US3628741A (en) | Device for winding textile threads | |
GB1588881A (en) | Precision winder for drawing and packaging synthetic winders | |
US2990603A (en) | Apparatus for draw-stretching and winding yarn | |
US5613280A (en) | Apparatus for monitoring sliver wrapping about a sliver guiding roll | |
US3301496A (en) | Yarn winding machine | |
GB2172906A (en) | Tensional wound yarn: varying speed of friction drive drum | |
US3346207A (en) | Precision cross-winding apparatus | |
US4067507A (en) | Filament-winding mechanism | |
US3779471A (en) | Speed control linkage means for winding bobbins |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |