CN108425174B - Constant tension yarn carrying device and working method thereof - Google Patents
Constant tension yarn carrying device and working method thereof Download PDFInfo
- Publication number
- CN108425174B CN108425174B CN201810506737.9A CN201810506737A CN108425174B CN 108425174 B CN108425174 B CN 108425174B CN 201810506737 A CN201810506737 A CN 201810506737A CN 108425174 B CN108425174 B CN 108425174B
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- yarn
- contact
- bearing
- shaft
- rubber wheel
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
- D03D47/12—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein single picks of weft thread are inserted, i.e. with shedding between each pick
- D03D47/18—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein single picks of weft thread are inserted, i.e. with shedding between each pick two weft inserters meeting at or near the middle of the shed and transferring the weft from one to the other
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
- D03D47/27—Drive or guide mechanisms for weft inserting
- D03D47/275—Drive mechanisms
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/66—Disintegrating fibre-containing textile articles to obtain fibres for re-use
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Tension Adjustment In Filamentary Materials (AREA)
- Forwarding And Storing Of Filamentary Material (AREA)
Abstract
The invention relates to a constant tension yarn carrying device and a working method thereof, the device comprises a yarn shaft, a bearing mechanism, a spring mechanism, a transmission mechanism, a ratchet mechanism and a yarn guiding mechanism, wherein the spring device is used for detecting yarn feeding tension, a motor and a transmission device thereof are used for realizing yarn feeding, yarn returning and speed adjustment, the ratchet mechanism is used for realizing forward rotation or reverse rotation movement of a yarn outlet shaft, and the outer side of the spring is contacted with a contact one or a contact two on the inner side of a yarn shaft main body, so that the forward rotation or reverse rotation of the motor is judged, and the yarn feeding tension adjustment and yarn tension fluctuation problem in the yarn feeding process are carried out. The working scheme can enable the yarn feeding tension to be adjusted within a certain range, meets the tension adjustment requirement in the operation process of the loom, and avoids the uneven fabric caused by tension fluctuation.
Description
[ field of technology ]
The invention relates to production equipment of high-performance industrial cloth, in particular to a constant-tension yarn carrying device and a working method thereof, and belongs to the technical field of three-dimensional spinning.
[ background Art ]
With the wide application of carbon fiber composite materials in the industrial fields of aerospace, automobiles, ships and the like, weaving equipment for carbon fiber fabrics is rapidly developed. The three-dimensional woven fabric is an important component of the carbon fiber composite material, so that the composite material has higher delamination resistance.
At present, the weaving of the three-dimensional woven fabric is often finished by a modified narrow multi-rapier loom, and ensuring a constant yarn tension in the multi-rapier weft insertion process is an important link in the weaving process, otherwise, the weaving failure is caused by uneven fabric tension.
Therefore, to solve the above-mentioned problems, it is necessary to provide an innovative constant tension yarn carrying device and its working method to overcome the drawbacks of the prior art.
[ invention ]
In order to solve the above problems, an object of the present invention is to provide a constant tension yarn carrying device, which can make tension jump within a small acceptable range during weaving process, so as to promote weaving production of carbon fiber fabrics and improve development of carbon fiber composite materials.
The second object of the invention is to provide a working method of the constant tension yarn carrying device.
In order to achieve the first object, the present invention adopts the following technical scheme: a constant tension yarn carrying device comprises a yarn shaft, a bearing mechanism, a clockwork spring mechanism, a transmission mechanism, a ratchet mechanism and a yarn guiding mechanism;
the bearing mechanism comprises two ball bearings and two roller bearings, the two ball bearings are arranged on the inner side of the yarn shaft, and the inner side of the ball bearings is arranged on an optical axis; the roller bearing is arranged at the outer side of the ball bearing, and a bearing sleeve is arranged between the roller bearing and the ball bearing;
the clockwork spring mechanism comprises clockwork springs, a first contact and a second contact; the inner side end of the spring is fixedly connected with the outer ring of the bearing sleeve, and the outer side end of the spring is provided with a contact; the first contact and the second contact are fixed on the inner side of the yarn shaft, the contact is conducted when contacting with the first contact or the second contact, and the contact is not conducted when being positioned between the first contact and the second contact;
the transmission mechanism comprises a motor, a large rubber wheel and a small rubber wheel; the motor is fixed on the optical axis, the small rubber wheel is arranged on the rotating shaft of the motor, the large rubber wheel is fixedly connected with the outer side of the bearing sleeve, and the large rubber wheel and the small rubber wheel are in friction transmission;
the ratchet mechanism comprises a ratchet wheel and a pawl, wherein the ratchet wheel is fixedly connected with the outer ring of the ball bearing, one end of the pawl is hinged to the inner side of the yarn shaft, and the other end of the pawl can be matched with the ratchet wheel;
the yarn guide mechanism comprises a linear bearing, a yarn guide frame and a yarn guide ring; the yarn guide frame is fixed on the optical axis, the linear bearing is arranged on the yarn guide frame, the yarn guide ring is arranged on the linear bearing, and the yarn guide ring can axially move along with the linear bearing.
The constant tension yarn carrying device of the invention is further provided with: the optical axis is inserted into the yarn shaft; end covers are arranged at two ends of the yarn shaft.
The constant tension yarn carrying device of the invention is further provided with: the ratchet mechanism is arranged between the yarn shaft and the bearing sleeve.
The constant tension yarn carrying device of the invention is further provided with: the outer ring of the roller bearing is in interference fit with the inner wall of the yarn shaft; the inner ring of the ball bearing is in interference fit with the outer wall of the optical axis; the outer wall of the bearing sleeve and the inner ring of the roller bearing, the inner wall of the bearing sleeve and the outer ring of the ball bearing are in interference fit.
The constant tension yarn carrying device of the invention is also provided with: the motor is arranged on the outer side of the yarn shaft; the large rubber wheel and the small rubber wheel are positioned in the yarn shaft.
In order to achieve the second object, the invention adopts the following technical scheme: a working method of a constant tension yarn carrying device comprises the following steps:
step 1: winding the yarn on the outer edge of a yarn shaft, and setting the tension of a clockwork spring to fix one end of the yarn in the yarn feeding direction or have traction constraint force;
step 2: the motor is electrified, and whether the motor is conducted or not is judged, wherein the situation is as follows:
when the contact is conducted with the contact, the motor rotates positively, and the outer ring of the roller bearing is driven to rotate reversely through the transmission of the small rubber wheel and the large rubber wheel, and at the moment, the ratchet wheel on the outer ring of the roller bearing props against the pawl, so that the yarn shaft rotates reversely along with the outer ring of the roller bearing, and the yarn recovery action is realized;
when the contact is conducted with the contact II, the motor rotates reversely, and the outer ring of the roller bearing is driven to rotate positively through the transmission of the small rubber wheel and the large rubber wheel, at the moment, the ratchet wheel on the outer ring of the roller bearing cannot prop against the pawl, so that the ratchet wheel cannot drive the yarn shaft to rotate, and the yarn feeding action is realized;
when the contact is between the first contact and the second contact, i.e. the contact is not conductive, the motor stops.
Compared with the prior art, the invention has the following beneficial effects: the constant tension yarn carrying device provided by the invention has the advantages that the yarn feeding tension is regulated by the spring, the motor drives the large rubber wheel and the small rubber wheel to realize the recovery of the yarn shaft or the yarn feeding, the ratchet mechanism is matched with the yarn shaft to do forward rotation or reverse rotation, and the contact on the outer side of the spring is contacted with the contact I or the contact II on the inner side of the yarn shaft, so that the forward rotation or the reverse rotation of the motor is judged, and the yarn tension control is realized, and the problem of great fluctuation of the yarn tension in the weft insertion process is solved. The working method enables the yarn tension to be adjusted at will within a certain range, meets the tension adjustment requirement in the operation process of the loom, and avoids shutdown caused by great fluctuation of the tension.
[ description of the drawings ]
Fig. 1 is an isometric view of a constant tension yarn carrying device of the present invention.
Fig. 2 is a main sectional view of the constant tension yarn carrying device of the present invention.
Fig. 3 is a cross-sectional view A-A of fig. 2.
Fig. 4 is a B-B cross-sectional view of fig. 2.
Fig. 5 is a cross-sectional view of fig. 2C-C.
Fig. 6 is a D-D cross-sectional view of fig. 2.
Fig. 7 is a flowchart of the operation of the constant tension yarn carrying device of the present invention.
[ detailed description ] of the invention
Referring to fig. 1 to 6 of the specification, the present invention is a constant tension yarn carrying device, which comprises a yarn shaft 9, a bearing mechanism, a clockwork spring mechanism, a transmission mechanism, a ratchet mechanism, a yarn guiding mechanism and the like.
Wherein the bearing mechanism comprises two ball bearings 1 and two roller bearings 2. The two ball bearings 1 are mounted on the inner side of the spool 9, and the inner side of the ball bearings 1 is mounted on an optical axis 4. The roller bearing 2 is arranged outside the ball bearing 1, and a bearing sleeve 6 is arranged between the roller bearing 2 and the ball bearing 1. During assembly, the outer ring of the roller bearing 2 is in interference fit with the inner wall of the yarn shaft 9; the inner ring of the ball bearing 1 is in interference fit with the outer wall of the optical axis 4; the outer wall of the bearing sleeve 6 and the inner ring of the roller bearing 2, the inner wall of the bearing sleeve 6 and the outer ring of the ball bearing 1 are in interference fit.
The clockwork spring mechanism is used for adjusting yarn feeding tension and consists of clockwork spring 18, a first contact 10, a second contact 11 and the like. The inner side end of the clockwork spring 18 is fixedly connected with the outer ring of the bearing sleeve 6, and the outer side end of the clockwork spring 18 is provided with a contact 19. The first contact 10 and the second contact 11 are fixed on the inner side of the spool 9, the contact 19 is conducted when contacting the first contact 10 or the second contact 11, and the contact 19 is not conducted when being positioned between the first contact 10 and the second contact 11, so as to control the forward rotation or the reverse rotation of the transmission mechanism.
The transmission mechanism consists of a motor 3, a large rubber wheel 7, a small rubber wheel 16 and the like. The motor 3 is fixed on the optical axis 4, which is arranged outside the spindle 9. The small rubber wheel 16 is arranged on the rotating shaft 31 of the motor 3, and the large rubber wheel 7 is fixedly connected with the outer side of the bearing sleeve 6. The large rubber wheel 7 and the small rubber wheel 16 are driven by friction, and are both positioned in the yarn shaft 9.
The ratchet mechanism is arranged between the yarn shaft 9 and the bearing sleeve 6 and comprises a ratchet 8 and a pawl 21, the ratchet 8 is fixedly connected with the outer ring of the ball bearing 1, one end of the pawl 21 is hinged to the inner side of the yarn shaft 9, and the other end of the pawl 21 can be matched with the ratchet 8;
the yarn guiding mechanism consists of a linear bearing 13, a yarn guiding frame 12, a yarn guiding ring 14 and the like. The yarn guide frame 12 is fixed on the optical axis 4, the linear bearing 13 is mounted on the yarn guide frame 12, the yarn guide ring 14 is mounted on the linear bearing 13, and the yarn guide ring 14 can axially move along with the linear bearing 13.
Further, the optical axis 4 is inserted into the spool 9; end covers 5 and 17 are arranged at two ends of the yarn shaft 9, and the end parts of the yarn shaft 9 are closed through the end covers 5 and 17, so that dust is prevented from entering the ball bearing 1 and the roller bearing 2.
Referring to fig. 7 of the specification, the working method of the constant tension yarn carrying device of the invention comprises the following steps:
step 1: winding the yarn 15 around the outer edge of the yarn shaft 9, and setting the tension of the clockwork spring 18 to fix one end of the yarn 15 in the yarn feeding direction or to have traction constraint force;
step 2: the motor 3 is electrified to judge whether the motor 3 is conducted or not, and the situation is as follows:
when the contact 19 is conducted with the contact I10, the motor 3 rotates positively, and drives the outer ring of the roller bearing 2 to rotate reversely through the transmission of the small rubber wheel 16 and the large rubber wheel 7, and at the moment, the ratchet wheel 8 on the outer ring of the roller bearing 2 props against the pawl 21, so that the yarn shaft 9 rotates reversely along with the outer ring of the roller bearing 2, namely the action of recovering the yarn 15 is realized;
when the contact 19 is conducted with the contact II 11, the motor 3 rotates reversely, and drives the outer ring of the roller bearing 2 to rotate positively through the transmission of the small rubber wheel 16 and the large rubber wheel 7, at the moment, the ratchet wheel 8 on the outer ring of the roller bearing 2 cannot prop against the pawl 21, so that the ratchet wheel 8 cannot drive the yarn shaft 9 to rotate, and the yarn 15 is sent out;
when contact 19 is between contact one 10 and contact two 11, i.e., contact 19 is not conducting, motor 3 is stalled.
The above embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention, but any modifications, equivalent substitutions, improvements, etc. within the spirit and principles of the present invention should be included in the scope of the present invention.
Claims (4)
1. A constant tension yarn carrying device, characterized in that: comprises a yarn shaft, a bearing mechanism, a clockwork spring mechanism, a transmission mechanism, a ratchet mechanism and a yarn guiding mechanism;
the bearing mechanism comprises two ball bearings and two roller bearings, the two ball bearings are arranged on the inner side of the yarn shaft, and the inner side of the ball bearings is arranged on an optical axis; the roller bearing is arranged at the outer side of the ball bearing, and a bearing sleeve is arranged between the roller bearing and the ball bearing; the optical axis is inserted into the yarn shaft; end covers are arranged at two ends of the yarn shaft;
the clockwork spring mechanism comprises clockwork springs, a first contact and a second contact; the inner side end of the spring is fixedly connected with the outer ring of the bearing sleeve, and the outer side end of the spring is provided with a contact; the first contact and the second contact are fixed on the inner side of the yarn shaft, the contact is conducted when contacting with the first contact or the second contact, and the contact is not conducted when being positioned between the first contact and the second contact;
the transmission mechanism comprises a motor, a large rubber wheel and a small rubber wheel; the motor is fixed on the optical axis, the small rubber wheel is arranged on the rotating shaft of the motor, the large rubber wheel is fixedly connected with the outer side of the bearing sleeve, and the large rubber wheel and the small rubber wheel are in friction transmission;
the ratchet mechanism comprises a ratchet wheel and a pawl, the ratchet wheel is fixedly connected with the outer ring of the bearing sleeve, one end of the pawl is hinged to the inner side of the yarn shaft, and the other end of the pawl can be matched with the ratchet wheel;
the yarn guide mechanism comprises a linear bearing, a yarn guide frame and a yarn guide ring; the yarn guide frame is fixed on the optical axis, the linear bearing is arranged on the yarn guide frame, the yarn guide ring is arranged on the linear bearing, and the yarn guide ring can axially move along with the linear bearing;
the outer ring of the roller bearing is in interference fit with the inner wall of the yarn shaft; the inner ring of the ball bearing is in interference fit with the outer wall of the optical axis; the outer wall of the bearing sleeve and the inner ring of the roller bearing, the inner wall of the bearing sleeve and the outer ring of the ball bearing are in interference fit.
2. The constant tension yarn carrying device of claim 1, wherein: the ratchet mechanism is arranged between the yarn shaft and the bearing sleeve.
3. The constant tension yarn carrying device of claim 1, wherein: the motor is arranged on the outer side of the yarn shaft; the large rubber wheel and the small rubber wheel are positioned in the yarn shaft.
4. A method of operation employing a constant tension yarn carrying device as claimed in any one of claims 1 to 3, characterised in that: the method comprises the following steps:
step 1: winding the yarn on the outer edge of a yarn shaft, and setting the tension of a clockwork spring to fix one end of the yarn in the yarn feeding direction or have traction constraint force;
step 2: the motor is electrified, and whether the motor is conducted or not is judged, wherein the situation is as follows:
when the contact is conducted with the contact, the motor rotates positively, and the outer ring of the roller bearing is driven to rotate reversely through the transmission of the small rubber wheel and the large rubber wheel, and at the moment, the ratchet wheel on the outer ring of the roller bearing props against the pawl, so that the yarn shaft rotates reversely along with the outer ring of the roller bearing, and the yarn recovery action is realized;
when the contact is conducted with the contact II, the motor rotates reversely, and the outer ring of the roller bearing is driven to rotate positively through the transmission of the small rubber wheel and the large rubber wheel, at the moment, the ratchet wheel on the outer ring of the roller bearing cannot prop against the pawl, so that the ratchet wheel cannot drive the yarn shaft to rotate, and the yarn feeding action is realized;
when the contact is between the first contact and the second contact, i.e. the contact is not conductive, the motor stops.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810506737.9A CN108425174B (en) | 2018-05-24 | 2018-05-24 | Constant tension yarn carrying device and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810506737.9A CN108425174B (en) | 2018-05-24 | 2018-05-24 | Constant tension yarn carrying device and working method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108425174A CN108425174A (en) | 2018-08-21 |
| CN108425174B true CN108425174B (en) | 2023-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810506737.9A Active CN108425174B (en) | 2018-05-24 | 2018-05-24 | Constant tension yarn carrying device and working method thereof |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109487416B (en) * | 2018-11-27 | 2020-02-14 | 福建伟易泰智能科技有限公司 | Yarn hooking control method and device and textile machine |
| CN112695432A (en) * | 2020-12-22 | 2021-04-23 | 四川邦尼德织物有限公司 | Constant tension control device of warping machine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1270567A (en) * | 1995-09-20 | 2000-10-18 | Iro有限公司 | Device and method to control yarn tension and yarn feeder |
| EP1520827A1 (en) * | 2003-10-04 | 2005-04-06 | Schärer Schweiter Mettler AG | Method and apparatus for controlling the yarn tension in a textile machine and use of the method |
| CN2729017Y (en) * | 2004-04-12 | 2005-09-28 | 许国强 | Yarn winding forming machine |
| CN105197672A (en) * | 2015-10-30 | 2015-12-30 | 常州瑞赛机电设备有限公司 | Bobbin assembly capable of realizing peripheral unwinding |
| EP2962973A1 (en) * | 2014-07-02 | 2016-01-06 | Murata Machinery, Ltd. | Yarn winding device |
| CN208266363U (en) * | 2018-05-24 | 2018-12-21 | 浙江理工大学 | A kind of identical tension takes yarn feeding device |
-
2018
- 2018-05-24 CN CN201810506737.9A patent/CN108425174B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1270567A (en) * | 1995-09-20 | 2000-10-18 | Iro有限公司 | Device and method to control yarn tension and yarn feeder |
| EP1520827A1 (en) * | 2003-10-04 | 2005-04-06 | Schärer Schweiter Mettler AG | Method and apparatus for controlling the yarn tension in a textile machine and use of the method |
| CN2729017Y (en) * | 2004-04-12 | 2005-09-28 | 许国强 | Yarn winding forming machine |
| EP2962973A1 (en) * | 2014-07-02 | 2016-01-06 | Murata Machinery, Ltd. | Yarn winding device |
| CN105197672A (en) * | 2015-10-30 | 2015-12-30 | 常州瑞赛机电设备有限公司 | Bobbin assembly capable of realizing peripheral unwinding |
| CN208266363U (en) * | 2018-05-24 | 2018-12-21 | 浙江理工大学 | A kind of identical tension takes yarn feeding device |
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| CN108425174A (en) | 2018-08-21 |
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