EP3653554A1 - Spinning machine having automatic doffing device - Google Patents
Spinning machine having automatic doffing device Download PDFInfo
- Publication number
- EP3653554A1 EP3653554A1 EP19208569.4A EP19208569A EP3653554A1 EP 3653554 A1 EP3653554 A1 EP 3653554A1 EP 19208569 A EP19208569 A EP 19208569A EP 3653554 A1 EP3653554 A1 EP 3653554A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- yarn
- spinning machine
- package
- spinning
- bobbin
- 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.)
- Pending
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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
- B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
- B65H67/04—Arrangements for removing completed take-up packages and or replacing by cores, formers, or empty receptacles at winding or depositing stations; Transferring material between adjacent full and empty take-up elements
- B65H67/0405—Arrangements for removing completed take-up packages or for loading an empty core
- B65H67/0411—Arrangements for removing completed take-up packages or for loading an empty core for removing completed take-up packages
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H9/00—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine
- D01H9/02—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine for removing completed take-up packages and replacing by bobbins, cores, or receptacles at take-up stations; Transferring material between adjacent full and empty take-up elements
- D01H9/08—Doffing arrangements independent of spinning or twisting machines
-
- 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
Definitions
- the present invention relates to the field of spinning machines, and particularly to a spinning machine having an automatic doffing device.
- the existing full-automatic spinning machine adopts a touring service component which automatically moves to a full yarn station, and the bobbin clamping arm is opened by a mechanical structure provided on the touring service component to remove and replace the package with a new bobbin.
- this kind of touring service component has a complex structure while it is only capable of handling one spinning station, so the cost is high.
- An objective of the present invention is to provide a spinning machine having a doffing device capable of automatic doffing.
- the present invention provides a spinning machine, comprising a plurality of rows of spinning stations arranged side by side, each of the spinning stations comprising a bobbin holder for supporting a bobbin and a winding device for winding a yarn around the bobbin to form a yarn package, wherein a doffing device is mounted on a frame of each of the spinning stations, the doffing device comprises a pushing mechanism, and a cylinder is provided at a bottom portion of the pushing mechanism, the pushing mechanism being capable of catching the dropped off yarn package by the bottom portion, and being driven by the cylinder to rotate to push the yarn package from the spinning station to a package transport channel.
- the pushing mechanism is an arc-shaped sheet-like supporting plate, a tail end of which is provided with a protrusion for preventing the yarn package from dropping off.
- each of the spinning stations is provided with a fixed wallboard, and the pushing mechanism is pivotally fixed between adjacent two of the fixed wallboards.
- the present invention provides a spinning machine, comprising a plurality of rows of spinning stations arranged side by side, each of the spinning stations comprising a bobbin holder for supporting a bobbin and a winding device for winding a yarn around the bobbin to form a yarn package, wherein the spinning machine further comprises an automatic doffing device which is mounted on a frame of each of the spinning stations and capable of pushing a package full of yarn to a package transport channel.
- the automatic doffing device comprises a pushing mechanism that can be mounted on the frame of the spinning machine and a driving mechanism that can be controlled by a control system to drive the pushing mechanism to rotate, the pushing mechanism being capable of catching the dropped off yarn package and being driven by the driving mechanism to rotate to move the yarn package.
- the pushing mechanism is an arc-shaped sheet-like supporting plate.
- a tail end of the sheet-like supporting plate is provided with a protrusion for preventing the yarn package from dropping off.
- the driving mechanism is a cylinder.
- the driving mechanism is a motor driven linkage mechanism.
- a fixed wallboard is provided between the adjacent stations, and the pushing mechanism is rotatably fixed to the wallboard between the adjacent stations by a pivot.
- the spinning machine of the present invention is provided with the automatic doffing device, when the yarn is wound to achieve a full yarn and a bobbin clamping arm is opened, the yarn package drops off to the doffing device, and a supporting plate of the doffing device automatically turns over the dropped off yarn package and pushes it down to a package transport channel, without needing to push down the yarn package manually or by hands, thereby achieving an automatic operation.
- the spinning machine of the present invention has the advantages of a simple structure, a convenient maintenance and a low cost.
- the present invention relates to a spinning machine having a winding mechanism for winding a spun yarn to form a yarn package, such as a rotor spinning machine, a winding machine or a twisting machine.
- the spinning machine of the present invention usually comprises a plurality of rows of spinning stations arranged side by side. Please refer to Fig. 1 , where a rotor spinning machine is taken as an example, and only a part of structure of one spinning station of the rotor spinning machine is illustrated for simplicity of illustration and description.
- the spinning machine of the present invention comprises a bobbin holder 2 for supporting a bobbin 1 and a winding mechanism for winding a yarn.
- the winding mechanism 3 is a motor-driven winding roller that is rotated by a motor, thereby driving the bobbin 1 to rotate to wind the yarn around the bobbin 1.
- Other structures of the rotor spinning machine are not described in detail here.
- the spinning machine of the present invention is provided with a doffing device 4 for automatically pushing down the package full of yarn to a package transport channel (not illustrated).
- the doffing device 4 of the present invention comprises a pushing plate 41 and a cylinder 42 that drives the pushing plate 41 to move.
- the pushing plate 41 is an arc-shaped supporting plate formed by a sheet-like plate, wherein a front end of the arc-shaped supporting plate is located below the bobbin 1; a protrusion 411 is provided at the front end of the arc-shaped supporting plate to prevent the yarn package from falling off the supporting plate; baffles 412 are formed on a rear end of the arc-shaped supporting plate by being bent upwards from two sides of a surface of the supporting plate and then bent laterally; two lugs 413 are formed to be protruded from a two sides of a bottom surface of the arc-shaped supporting plate near the rear end.
- a fixed wallboard 5 is provided between adjacent two of the stations of the spinning machine, and the pushing plate is pivotally fixed to the wallboard 5 between the adjacent two of the stations by a fixed shaft 6 extending through the lug 413 at a bottom portion of the arc-shaped supporting plate.
- two lugs 414 are provided near a middle portion of the bottom surface of the arc-shaped supporting plate, and a fixed shaft 7 is provided at an end portion of a piston of the cylinder 42 to extend through the two lugs 414 at the middle portion of the bottom surface of the supporting plate, thereby connecting the cylinder 42 and the pushing plate 41 to each other.
- An opening (not numbered) is provided in a frame of the spinning machine, and one half of the cylinder 42 extends through the opening of the frame, at which opening the cylinder 42 is fixed to the frame of the spinning machine by a fixed member (not number).
- An air inlet pipe 8 at a bottom portion of the cylinder 42 is connected to a pneumatic control device (not illustrated) through the wallboard 5.
- the bobbin holder can be opened by hands or automatically, and the package 10 full of yarn will fall off from the bobbin holder 2, and drop onto the pushing plate 41 of the doffing device 4.
- the pushing plate 41 is an integrally formed arc-shaped supporting plate in one piece.
- the pushing plate may also be a flat and straight plate.
- the supporting plate may not be plate-shaped, but a structure consisting of several rods, or a hollow structure, etc.
- the protrusion 411 at the front end of the pushing plate is a whole ridge along an edge of the pushing plate, and in other embodiments, it may also be a plurality of bumps provided at an interval or bumps provided only on two sides of the front end of the supporting plate.
- the pushing plate may be integrally formed of a plastic material or formed by bending a metal material.
- the pushing plate is driven to move by the cylinder 42, and in other embodiments, the pushing plate may also be driven to move by a motor through a linkage mechanism.
- the pushing plate 41 is fixed to the wallboards of the adjacent stations of the spinning machine by two pivots.
- the pushing plate 41 may also be fixed by a single shaft, or the wallboard may not be adopted, but a structure, such as two fixing posts for fixing may be provided.
Abstract
Description
- The present invention relates to the field of spinning machines, and particularly to a spinning machine having an automatic doffing device.
- In the existing spinning machine, after being spun, a yarn needs to be wound around an empty bobbin held by a bobbin clamping arm to form a yarn package. When the yarn on the bobbin is wound to a predetermined length to achieve a full yarn, it is necessary to remove the package full of yarn and replace it with a new empty bobbin to continue spinning.
- In the existing semi-automatic spinning machine, after the bobbin is full of yarn, the bobbin clamping arms is forcedly opened by hands, and the package full of yarn is manually pushed down to a package delivery channel. This manner of manually pushing down the yarn package requires the workers to continuously inspect the full yarn stations, and manually open the bobbin clamping arm to push down the package full of yarn, which is inefficient and increases the labor intensity of the workers.
- The existing full-automatic spinning machine adopts a touring service component which automatically moves to a full yarn station, and the bobbin clamping arm is opened by a mechanical structure provided on the touring service component to remove and replace the package with a new bobbin. But this kind of touring service component has a complex structure while it is only capable of handling one spinning station, so the cost is high.
- An objective of the present invention is to provide a spinning machine having a doffing device capable of automatic doffing.
- In order to achieve the above objective, the present invention provides a spinning machine, comprising a plurality of rows of spinning stations arranged side by side, each of the spinning stations comprising a bobbin holder for supporting a bobbin and a winding device for winding a yarn around the bobbin to form a yarn package, wherein a doffing device is mounted on a frame of each of the spinning stations, the doffing device comprises a pushing mechanism, and a cylinder is provided at a bottom portion of the pushing mechanism, the pushing mechanism being capable of catching the dropped off yarn package by the bottom portion, and being driven by the cylinder to rotate to push the yarn package from the spinning station to a package transport channel.
- According to one embodiment of the present invention, the pushing mechanism is an arc-shaped sheet-like supporting plate, a tail end of which is provided with a protrusion for preventing the yarn package from dropping off.
- According to one embodiment of the present invention, each of the spinning stations is provided with a fixed wallboard, and the pushing mechanism is pivotally fixed between adjacent two of the fixed wallboards.
- In order to achieve the above objective, the present invention provides a spinning machine, comprising a plurality of rows of spinning stations arranged side by side, each of the spinning stations comprising a bobbin holder for supporting a bobbin and a winding device for winding a yarn around the bobbin to form a yarn package, wherein the spinning machine further comprises an automatic doffing device which is mounted on a frame of each of the spinning stations and capable of pushing a package full of yarn to a package transport channel.
- According to one embodiment of the present invention, the automatic doffing device comprises a pushing mechanism that can be mounted on the frame of the spinning machine and a driving mechanism that can be controlled by a control system to drive the pushing mechanism to rotate, the pushing mechanism being capable of catching the dropped off yarn package and being driven by the driving mechanism to rotate to move the yarn package.
- According to one embodiment of the present invention, the pushing mechanism is an arc-shaped sheet-like supporting plate.
- According to one embodiment of the present invention, a tail end of the sheet-like supporting plate is provided with a protrusion for preventing the yarn package from dropping off.
- According to one embodiment of the present invention, the driving mechanism is a cylinder.
- According to one embodiment of the present invention, the driving mechanism is a motor driven linkage mechanism.
- According to one embodiment of the present invention, a fixed wallboard is provided between the adjacent stations, and the pushing mechanism is rotatably fixed to the wallboard between the adjacent stations by a pivot.
- Since the spinning machine of the present invention is provided with the automatic doffing device, when the yarn is wound to achieve a full yarn and a bobbin clamping arm is opened, the yarn package drops off to the doffing device, and a supporting plate of the doffing device automatically turns over the dropped off yarn package and pushes it down to a package transport channel, without needing to push down the yarn package manually or by hands, thereby achieving an automatic operation. As compared with the full-automatic spinning machine adopting the touring unit, the spinning machine of the present invention has the advantages of a simple structure, a convenient maintenance and a low cost.
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Fig. 1 is a partial structural diagram of a single station of a spinning machine of the present invention. -
Fig. 2 is a partial structural diagram in which a bobbin and a winding roller are omitted to clearly illustrate a doffing device. -
Fig. 3 is a partial structural diagram illustrating a doffing device of a spinning machine of the present invention as viewed from the back thereof. -
Fig. 4 is a partial structural diagram of a doffing device of the present invention not turned over after a full yarn. -
Fig. 5 is a partial structural diagram of a doffing device of the present invention turned over after a full yarn. - The present invention relates to a spinning machine having a winding mechanism for winding a spun yarn to form a yarn package, such as a rotor spinning machine, a winding machine or a twisting machine.
- The spinning machine of the present invention usually comprises a plurality of rows of spinning stations arranged side by side. Please refer to
Fig. 1 , where a rotor spinning machine is taken as an example, and only a part of structure of one spinning station of the rotor spinning machine is illustrated for simplicity of illustration and description. As illustrated, the spinning machine of the present invention comprises abobbin holder 2 for supporting a bobbin 1 and a winding mechanism for winding a yarn. In this embodiment, thewinding mechanism 3 is a motor-driven winding roller that is rotated by a motor, thereby driving the bobbin 1 to rotate to wind the yarn around the bobbin 1. Other structures of the rotor spinning machine are not described in detail here. - As described in the background art, in the existing semi-automatic rotor spinning machine, when the yarn is wound around the bobbin to a predetermined length to achieve a full yarn, the package full of yarn is pushed down to a package transport channel by hands. Please refer to
Fig. 1 and in conjunction withFigs. 2 and3 , the spinning machine of the present invention is provided with adoffing device 4 for automatically pushing down the package full of yarn to a package transport channel (not illustrated). In this embodiment, thedoffing device 4 of the present invention comprises a pushingplate 41 and acylinder 42 that drives the pushingplate 41 to move. As illustrated, the pushingplate 41 is an arc-shaped supporting plate formed by a sheet-like plate, wherein a front end of the arc-shaped supporting plate is located below the bobbin 1; aprotrusion 411 is provided at the front end of the arc-shaped supporting plate to prevent the yarn package from falling off the supporting plate;baffles 412 are formed on a rear end of the arc-shaped supporting plate by being bent upwards from two sides of a surface of the supporting plate and then bent laterally; twolugs 413 are formed to be protruded from a two sides of a bottom surface of the arc-shaped supporting plate near the rear end. Afixed wallboard 5 is provided between adjacent two of the stations of the spinning machine, and the pushing plate is pivotally fixed to thewallboard 5 between the adjacent two of the stations by afixed shaft 6 extending through thelug 413 at a bottom portion of the arc-shaped supporting plate. As illustrated inFig. 3 , twolugs 414 are provided near a middle portion of the bottom surface of the arc-shaped supporting plate, and afixed shaft 7 is provided at an end portion of a piston of thecylinder 42 to extend through the twolugs 414 at the middle portion of the bottom surface of the supporting plate, thereby connecting thecylinder 42 and the pushingplate 41 to each other. An opening (not numbered) is provided in a frame of the spinning machine, and one half of thecylinder 42 extends through the opening of the frame, at which opening thecylinder 42 is fixed to the frame of the spinning machine by a fixed member (not number). Anair inlet pipe 8 at a bottom portion of thecylinder 42 is connected to a pneumatic control device (not illustrated) through thewallboard 5. - Please refer to
Fig. 4 , when the yarn is wound around the bobbin to achieve a full yarn state, the bobbin holder can be opened by hands or automatically, and thepackage 10 full of yarn will fall off from thebobbin holder 2, and drop onto the pushingplate 41 of thedoffing device 4. - Please refer to
Fig. 5 , when the package full of yarn drops onto the pushingplate 41 of thedoffing device 4, the piston of thecylinder 42 is driven to move by the pneumatic control device, and the piston of thecylinder 42 pushes up the pushingplate 41, so that thepackage 10 full of yarn rolls backwards and falls onto the package transport channel (not illustrated) of the spinning machine. - In the foregoing specific embodiment, the pushing
plate 41 is an integrally formed arc-shaped supporting plate in one piece. In other embodiments, the pushing plate may also be a flat and straight plate. Alternatively, in other embodiments, the supporting plate may not be plate-shaped, but a structure consisting of several rods, or a hollow structure, etc. In the foregoing embodiment, theprotrusion 411 at the front end of the pushing plate is a whole ridge along an edge of the pushing plate, and in other embodiments, it may also be a plurality of bumps provided at an interval or bumps provided only on two sides of the front end of the supporting plate. The pushing plate may be integrally formed of a plastic material or formed by bending a metal material. - In the foregoing embodiment, the pushing plate is driven to move by the
cylinder 42, and in other embodiments, the pushing plate may also be driven to move by a motor through a linkage mechanism. - In the foregoing embodiment, the pushing
plate 41 is fixed to the wallboards of the adjacent stations of the spinning machine by two pivots. In other embodiments, the pushingplate 41 may also be fixed by a single shaft, or the wallboard may not be adopted, but a structure, such as two fixing posts for fixing may be provided. - Those described above are just some specific embodiments of the technical solutions of the present invention, and it is impossible for the inventor to illustrate all the embodiments seriatim, and the scope of the claims of the present invention is not limited to the foregoing specific embodiments. Any change that can be made by a person skilled in the art based on the specific embodiments of the specification without paying a creative labor should fall within the scope of the claims of the present invention.
Claims (10)
- A spinning machine, comprising a plurality of rows of spinning stations arranged side by side, each of the spinning stations comprising a bobbin holder for supporting a bobbin and a winding device for winding a yarn around the bobbin to form a yarn package, characterized in that a doffing device is mounted on a frame of each of the spinning stations, the doffing device comprises a pushing mechanism, and a cylinder is provided at a bottom portion of the pushing mechanism, the pushing mechanism being capable of catching the dropped off yarn package by the bottom portion, and being driven by the cylinder to rotate and to push the yarn package from the spinning station to a package transport channel.
- The spinning machine according to claim 1, characterized in that the pushing mechanism is an arc-shaped sheet-like supporting plate, a tail end of which is provided with a protrusion for preventing the yarn package from dropping off.
- The spinning machine according to claim 1, characterized in that each of the spinning stations is provided with a fixed wallboard, and the pushing mechanism is pivotally fixed between adjacent two of the fixed wallboards.
- A spinning machine, comprising a plurality of rows of spinning stations arranged side by side, each of the spinning stations comprising a bobbin holder for supporting a bobbin and a winding device for winding a yarn around the bobbin to form a yarn package, characterized in that the spinning machine further comprises an automatic doffing device which is mounted on a frame of each of the spinning stations and capable of pushing a package full of yarn to a package transport channel.
- The spinning machine according to claim 4, characterized in that the automatic doffing device comprises a pushing mechanism that can be mounted on the frame of the spinning machine, and a driving mechanism that can be controlled by a control system to drive the pushing mechanism to rotate, the pushing mechanism being capable of catching the dropped off yarn package and being driven by the driving mechanism to rotate to move the yarn package.
- The spinning machine according to claim 5, characterized in that the pushing mechanism is an arc-shaped sheet-like supporting plate.
- The spinning machine according to claim 6, characterized in that a tail end of the sheet-like supporting plate is provided with a protrusion for preventing the yarn package from dropping off.
- The spinning machine according to claim 5, characterized in that the driving mechanism is a cylinder.
- The spinning machine according to claim 5, characterized in that the driving mechanism is a motor driven linkage mechanism.
- The spinning machine according to claim 5, characterized in that a fixed wallboard is provided between the adjacent stations, and the pushing mechanism is rotatably fixed to the wallboard between the adjacent stations by a pivot.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201811371897.3A CN109137166A (en) | 2018-11-16 | 2018-11-16 | Textile machine with Automatic doffing devices |
Publications (1)
Publication Number | Publication Date |
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EP3653554A1 true EP3653554A1 (en) | 2020-05-20 |
Family
ID=64806106
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP19208569.4A Pending EP3653554A1 (en) | 2018-11-16 | 2019-11-12 | Spinning machine having automatic doffing device |
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EP (1) | EP3653554A1 (en) |
CN (1) | CN109137166A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112093583A (en) * | 2020-09-24 | 2020-12-18 | 陕西华燕航空仪表有限公司 | Spinning bobbin positioning device |
Families Citing this family (6)
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CN110127450B (en) * | 2019-05-22 | 2024-03-26 | 浙江锦马自动化科技有限公司 | Quick doffing device |
CN110356925B (en) * | 2019-06-27 | 2021-07-13 | 武汉裕大华纺织服装集团有限公司 | Automatic collection device that stacks of yarn section of thick bamboo |
CN115142159A (en) * | 2021-03-30 | 2022-10-04 | 合肥松宝科技有限公司 | Automatic full-yarn-tube collecting method |
CN114671305B (en) * | 2022-05-27 | 2022-08-09 | 南通普菲特化纤加捻有限公司 | Thread winding device for false twisting machine |
CN115449929A (en) * | 2022-10-21 | 2022-12-09 | 浙江越剑智能装备股份有限公司 | Automatic doffing device |
CN115821441B (en) * | 2022-10-21 | 2023-12-12 | 浙江越剑智能装备股份有限公司 | Elasticizer with automatic doffer |
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JPS61282269A (en) * | 1985-06-10 | 1986-12-12 | Ishikawa Seisakusho:Kk | Doffing device in surface frictional driving system taking-up apparatus |
DE19916269A1 (en) * | 1999-04-12 | 2000-10-19 | Schlafhorst & Co W | Automatic bobbin winder has monitors to register presence of yarn from cop to act on doffer control when end of yarn is detected to determine doffing action |
EP2322459A2 (en) * | 2009-11-16 | 2011-05-18 | Murata Machinery, Ltd. | Winding Machine |
DE102014107508A1 (en) * | 2014-05-28 | 2015-12-03 | Rieter Ingolstadt Gmbh | Method for disposing of bobbins on a textile machine and textile machine |
CN107352325A (en) * | 2017-08-03 | 2017-11-17 | 上海海石花纺织机械设备有限公司 | Cylinder yarn unloads yarn and buffers laborsaving slideway mechanism |
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JP2017001836A (en) * | 2015-06-11 | 2017-01-05 | 村田機械株式会社 | Yarn winder and spinning machine |
CN105908295B (en) * | 2016-03-09 | 2018-08-21 | 安徽日发纺织机械有限公司 | A kind of open-end spinning frame doffing cart |
CN209798185U (en) * | 2018-11-16 | 2019-12-17 | 卓郎(江苏)纺织机械有限公司 | Textile machine with automatic doffing device |
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2018
- 2018-11-16 CN CN201811371897.3A patent/CN109137166A/en active Pending
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2019
- 2019-11-12 EP EP19208569.4A patent/EP3653554A1/en active Pending
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Publication number | Priority date | Publication date | Assignee | Title |
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JPS61282269A (en) * | 1985-06-10 | 1986-12-12 | Ishikawa Seisakusho:Kk | Doffing device in surface frictional driving system taking-up apparatus |
DE19916269A1 (en) * | 1999-04-12 | 2000-10-19 | Schlafhorst & Co W | Automatic bobbin winder has monitors to register presence of yarn from cop to act on doffer control when end of yarn is detected to determine doffing action |
EP2322459A2 (en) * | 2009-11-16 | 2011-05-18 | Murata Machinery, Ltd. | Winding Machine |
DE102014107508A1 (en) * | 2014-05-28 | 2015-12-03 | Rieter Ingolstadt Gmbh | Method for disposing of bobbins on a textile machine and textile machine |
CN107352325A (en) * | 2017-08-03 | 2017-11-17 | 上海海石花纺织机械设备有限公司 | Cylinder yarn unloads yarn and buffers laborsaving slideway mechanism |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112093583A (en) * | 2020-09-24 | 2020-12-18 | 陕西华燕航空仪表有限公司 | Spinning bobbin positioning device |
CN112093583B (en) * | 2020-09-24 | 2022-09-20 | 陕西华燕航空仪表有限公司 | Spinning bobbin positioning device |
Also Published As
Publication number | Publication date |
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CN109137166A (en) | 2019-01-04 |
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