CN108584508A - Online exhibition fine buffering constant tension device and its application method - Google Patents
Online exhibition fine buffering constant tension device and its application method Download PDFInfo
- Publication number
- CN108584508A CN108584508A CN201810482023.9A CN201810482023A CN108584508A CN 108584508 A CN108584508 A CN 108584508A CN 201810482023 A CN201810482023 A CN 201810482023A CN 108584508 A CN108584508 A CN 108584508A
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- swing arm
- tension
- roller
- drive roll
- constant tension
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- 230000003139 buffering effect Effects 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000002657 fibrous material Substances 0.000 claims abstract description 26
- 230000007704 transition Effects 0.000 claims abstract description 15
- 238000006073 displacement reaction Methods 0.000 claims description 14
- 238000001514 detection method Methods 0.000 claims description 12
- 239000000872 buffer Substances 0.000 claims description 10
- 230000033001 locomotion Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 claims description 2
- 230000001360 synchronised effect Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000009954 braiding Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000994 depressogenic effect Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 239000007779 soft material Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000005524 ceramic coating Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000009941 weaving Methods 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
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
- B65H23/26—Registering, tensioning, smoothing or guiding webs longitudinally by transverse stationary or adjustable bars or rollers
Landscapes
- Tension Adjustment In Filamentary Materials (AREA)
Abstract
The invention discloses a kind of fine buffering constant tension devices of online exhibition, including drive roll, oscillating roller and fixed transition roller, the central shaft of drive roll, the oscillating roller and the fixed transition roller described in three groups is arranged in parallel respectively and distribution triangular in shape, wherein, the oscillating roller include fixed setting swing arm mandrel, with the swing arm of swing arm mandrel rotation connection and swing roller main body in the swing arm end is set；Tension detecting apparatus is fixedly connected with the swing arm mandrel, the pressure being subject to for detecting the swing roller main body；Control centre connect with the power source of the tension detecting apparatus and the drive roll respectively.The tension that exhibition fiber material is treated using tension sensor is monitored in real time, and it is transferred to control centre, adjust the velocity of rotation of drive roll and the traction force of pulling device in real time by control centre, to realize the constant tension of fiber material to be opened up and synchronous with the holding of the speed of latter procedure, in order to avoid there is situations such as broken string, coiling.
Description
Technical field
The present invention relates to soft material processing technique fields, and in particular to a kind of online exhibition it is fine with buffering constant tension device and
Its application method.
Background technology
Carbon fiber opens up fine braiding process online, needs speed sync and the entrance of realizing carbon fibre stretching device and tricot machine
The uniform tension in order of all yarns and constant when braiding, broken yarn or tension unevenness otherwise easily occur causes braided fabric quality not reach
Mark, and the existing on-line tension regulating device for soft material, complicated, response speed is slow, and it is fine to cannot achieve online exhibition
The control of identical tension.
In view of defect existing for above-mentioned existing constant tension control device, the present inventor is based on being engaged in such product design
Manufacture abundant for many years practical experience and professional knowledge, and coordinate the utilization of scientific principle, actively it is subject to research and innovation, to found one
The online exhibition of kind is fine with constant tension device and its application method is buffered, it is made to have more practicability.By constantly studying, designing,
And after studying sample repeatedly and improving, the present invention having practical value is created finally.
Invention content
It is a primary object of the present invention to, overcome defect existing for existing constant tension control device, and one kind is provided and is existed
Line exhibition fine buffering constant tension device and its application method, control accuracy is high, simple in structure, thus more suitable for practicality, and has
There is the utility value in industry.
The object of the invention to solve the technical problems is realized using following technical scheme.
The fine buffering constant tension device of online exhibition, including：
Roll assembly, including drive roll, oscillating roller and fixed transition roller, drive roll, the oscillating roller and the fixation described in three groups
The central shaft of transition roller is arranged in parallel respectively and distribution triangular in shape, wherein the oscillating roller includes the swing arm core of fixed setting
Axis, with the swing arm of swing arm mandrel rotation connection and swing roller main body in the swing arm end is set；
Tension detecting apparatus is fixedly connected with the swing arm mandrel, the pressure being subject to for detecting the swing roller main body；
Control centre connect with the power source of the tension detecting apparatus and the drive roll respectively.
As a kind of perferred technical scheme, the swing arm mandrel include mandrel main body and with the mandrel main body two
Hold two shafts being respectively fixedly connected with.
As a kind of perferred technical scheme, the tension detecting apparatus is tension sensor, and the tension sensor
There are two settings, is respectively fixedly disposed in two shafts of the swing arm mandrel.
As a kind of perferred technical scheme, the tension sensor is fixed at the outer circumference end of the shaft.It is described
Tension sensor is fixed at the non-central location of the shaft, it is preferred that the outer circumference end in shaft, outer circumference end rotation is arranged
Amplitude is big, can amplify the angle of shaft rotation, to which tension be further amplified.
As a kind of perferred technical scheme, it is additionally provided with buffer spring between the tension sensor and the shaft,
The both ends of the buffer spring are connect with the tension sensor, the shaft respectively.
As a kind of perferred technical scheme, it is provided with angular displacement sensor in the shaft, for detecting the shaft
The angle of rotation, and the angular displacement sensor is connect with the control centre.
As a kind of perferred technical scheme, the swing arm is in bending.
As a kind of perferred technical scheme, the swing arm is divided into first and second, and described first and described
It is in 100-150 ° between second.
As a kind of perferred technical scheme, the surface of the drive roll, the oscillating roller and the fixed transition roller is equal
It is provided with nano ceramic coat.
The online fine application method with buffering constant tension device of exhibition, includes the following steps：
Fiber material to be opened up is passed sequentially through the drive roll, the swing roller main body and the fixed transition roller, and opened by step 1
The power source and pulling device for moving the drive roll, the movement of fiber material to be opened up described in drive；
Step 2, tension sensor monitor the pressure that the swing roller main body is subject to and are transferred to the data of detection described in real time
Control centre is arranged the angular displacement sensor on the swing arm mandrel and monitors the angle of the swing arm mandrel rotation in real time and incite somebody to action
The data of detection are transferred to the control centre；
The data that step 3, the control centre are detected according to the tension sensor and the angular displacement sensor, described in control
The rotating speed of drive roll and the pulling device.
Using above-mentioned technical proposal, following technique effect can be realized：
1）, monitored in real time to swinging the tension of fiber material to be opened up that roller main body is subject to using tension sensor, and be transferred to
Control centre is adjusted the velocity of rotation of drive roll and the traction force of pulling device by control centre, waits opening up to realize in real time
The constant tension of fiber material and synchronous with the holding of the speed of latter procedure, in order to avoid there is situations such as broken string, coiling；
2）, using lever principle, the pressure amplification that roller main body is subject to will be swung, to increase the pulling force that tension sensor is subject to,
And then increase the precision of its tension detection, the pulling force two being subject to furthermore with the rotational angle and tension sensor of swing arm mandrel
The tension value that data carry out fiber material to be opened up judges, can further improve the precision of detection；
3）While when weaving multi-axial fabric due to latter procedure -- tricot machine can frequent start-stop, during frequent start-stop
Due to the time difference that motor responds start-stop signal, each group active pulling roller is caused to have synchronous difference, therefore be arranged and passed in tension
Buffer spring between sensor and swing arm mandrel can be used for compensating the speed difference；
4）, the apparatus structure it is simple, easy for installation, and the transmission speed of data is fast, response is timely；
5）, main pulling roller and drive roll pull fiber material to be opened up after draft gear starts, fiber material to be opened up is depressed by tension and is put
Air line distance becomes smaller between dynamic roller main body, drive roll and swing roller main body and oscillating roller and fixed excessive roller, can be carried to fabric
For buffering, prevent from, since speed is asynchronous between two groups of active pulling rollers, fiber material to be opened up being broken or being skidded.
Description of the drawings
Fig. 1 is the structural schematic diagram that the online exhibition fibre of the present invention buffers constant tension device；
Fig. 2 is the front view that the online exhibition fibre of the present invention buffers constant tension device；
Wherein, 1- drive rolls, 2- oscillating rollers, 21- swing arm mandrels, 22- swing arms, 23- swing roller main body, and 3- fixes transition roller, 4-
Tension sensor, 5- angular displacement sensors, 6- buffer springs, 7- fiber materials to be opened up；
It notes, arrow direction is the fiber material direction of motion to be opened up, two presented comprising two kinds of tension lower swing rollers in Fig. 2 in Fig. 1
Kind state.
Specific implementation mode
Further to illustrate the present invention to reach the technological means and effect that predetermined goal of the invention is taken, to foundation
Online exhibition proposed by the present invention fine buffering constant tension device and its application method its specific implementation mode, feature and its effect,
It is described in detail as after.
As shown in Figure 1, the invention discloses a kind of fine buffering constant tension devices of online exhibition, including：
Roll assembly, including drive roll 1, oscillating roller 2 and fixed transition roller 3, three groups of drive rolls 1, oscillating roller 2 and fixed transition roller 3
Central shaft be arranged in parallel respectively and distribution triangular in shape, wherein oscillating roller 2 include fixed setting swing arm mandrel 21, with pendulum
The swing arm 22 and swing roller main body 23 in 22 end of swing arm is arranged that arm mandrel 21 is rotatablely connected, 7 priority of fiber material open up passes through
Cross drive roll 1, swing roller main body 23 and fixed transition roller 3, and when wait open up 7 tension of fiber material it is larger when, swing roller main body 23 by
To larger pressure, therefore swing arm 22 is driven to be rotated around swing arm mandrel 21；
Tension detecting apparatus is fixedly connected with swing arm mandrel 21, for detecting the pressure for swinging roller main body 23 and being subject to, tension detection
Device is fixedly connected with the non-central point on swing arm mandrel 21, thus when 7 tension of fiber material to be opened up it is larger, force swing arm 22 around pendulum
After arm mandrel 21 rotates, tension detecting apparatus is driven, to measure the pulling force being subject at this time, to which fiber material to be opened up is learnt in conversion
7 tension, it is bigger than the arm of force of tension detecting apparatus to swing arm mandrel 21 additionally, due to the arm of force of oscillating roller 2 to swing arm mandrel 21,
It can be obtained larger tension value feedback on tension detecting apparatus by tension on oscillating roller 2, tension can be significantly provided
Accuracy of detection；
Control centre connect with the power source of tension detecting apparatus and drive roll 1 respectively, the number detected by tension detecting apparatus
According to the speed of service for controlling fiber material 7 to be opened up, to control its Tensity size.
As a kind of perferred technical scheme, swing arm mandrel 21 includes mandrel main body and distinguishes with the both ends of mandrel main body
Two shafts being fixedly connected.
As a kind of perferred technical scheme, tension detecting apparatus is tension sensor 4, and tension sensor 4 is provided with
It two, is respectively fixedly disposed in two shafts of swing arm mandrel 21.The setting of two tension sensors 4 can be further reduced
Detection error.
As a kind of perferred technical scheme, tension sensor 4 is fixed at the outer circumference end of shaft.Tension sensor 4
It is fixed at the non-central location of shaft, it is preferred that the outer circumference end in shaft is set, and outer circumference end rotation amplitude is big, can amplify
The angle of shaft rotation, to which tension be further amplified.
As a kind of perferred technical scheme, buffer spring 6, buffering elastic are additionally provided between tension sensor 4 and shaft
The both ends of spring 6 are connect with tension sensor 4, shaft respectively.
As a kind of perferred technical scheme, angular displacement sensor 5 is provided in shaft, the angle for detecting shaft rotation
Degree, and angular displacement sensor 5 is connect with control centre.
As a kind of perferred technical scheme, swing arm 22 is in bending.Preferably, swing arm 22 is divided into first and second
Portion, and be in 100-150 ° between first and second.The pressure that the swing arm 22 of bending can be subject to buffer swing roller 2, with
Exempt from the fracture for swing arm 22 occur.
As a kind of perferred technical scheme, the surface of drive roll 1, oscillating roller 2 and fixed transition roller 3 is both provided with nanometer
Ceramic coating, overcome traditional common metal surface can not provide enough tractive force and routine rubber surface be easily deformed lack
It falls into.
The online fine application method with buffering constant tension device of exhibition, includes the following steps：
Fiber material 7 to be opened up is passed sequentially through drive roll 1, swings roller main body 23 and fixed transition roller 3, and starts drive roll by step 1
1 power source and pulling device drives the movement of fiber material 7 to be opened up；
The monitoring in real time of step 2, tension sensor 4 swings the pressure that roller main body 23 is subject to and the data of detection is transferred in control
The heart, the angle of the angular displacement sensor 5 being arranged on swing arm mandrel 21 21 rotation of monitoring swing arm mandrel in real time and the number by detection
According to being transferred to control centre；
The data that step 3, control centre are detected according to tension sensor 4 and angular displacement sensor 5, control drive roll 1 and drawing
The rotating speed of device.
In addition, can goal-selling tension value, the pulling of drive roll 1 after device starts in control centre according to technological requirement
Fiber material 7 to be opened up is depressed oscillating roller 2, drive roll 1 and oscillating roller 2 and oscillating roller 2 and is fixed after exhibition fiber material 7 is by tension
Air line distance becomes smaller between excessive roller, fiber material 7 to be opened up can be given to provide buffering, prevented due to speed between two groups of active pulling rollers
It is asynchronous, fiber material 7 to be opened up is broken or skidded.Angular displacement sensor 5 feeds back to the rotation angle of swing arm mandrel 21 simultaneously
The tension value of tension spring is fed back to control centre by control centre, tension sensor 4, and control centre passes through according to feedback signal
Be worth to the fine required running speed of main drawing roller motor that exhibits, achieve the effect that it is synchronous with the draft gear of next process and
Keep the identical tension of fiber material 7 to be opened up.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification
For the equivalent embodiment of equivalent variations, as long as being the content without departing from technical solution of the present invention, according to the technical essence of the invention
To any simple modification, equivalent change and modification made by above example, in the range of still falling within technical solution of the present invention.
Claims (10)
1. the fine buffering constant tension device of online exhibition, which is characterized in that including：
Roll assembly, including drive roll（1）, oscillating roller（2）With fixed transition roller（3）, drive roll described in three groups（1）, the swing
Roller（2）With the fixed transition roller（3）Central shaft be arranged in parallel respectively and distribution triangular in shape, wherein the oscillating roller（2）
Swing arm mandrel including fixed setting（21）And the swing arm mandrel（21）The swing arm of rotation connection（22）And it is arranged described
Swing arm（22）The swing roller main body of end（23）；
Tension detecting apparatus, with the swing arm mandrel（21）It is fixedly connected, for detecting the swing roller main body（23）It is subject to
Pressure；
Control centre, respectively with the tension detecting apparatus and the drive roll（1）Power source connection.
2. the fine buffering constant tension device of online exhibition according to claim 1, which is characterized in that the swing arm mandrel（21）
Two shafts being respectively fixedly connected with including mandrel main body and with the both ends of the mandrel main body.
3. the fine buffering constant tension device of online exhibition according to claim 2, which is characterized in that the tension detecting apparatus
For tension sensor（4）, and the tension sensor（4）There are two settings, is respectively fixedly disposed at the swing arm mandrel（21）
Two shafts on.
4. the fine buffering constant tension device of online exhibition according to claim 3, which is characterized in that the tension sensor
（4）It is fixed at the outer circumference end of the shaft.
5. the fine buffering constant tension device of online exhibition according to claim 3, which is characterized in that the tension sensor
（4）It is additionally provided with buffer spring between the shaft（6）, the buffer spring（6）Both ends respectively with the tension sense
Device（4）, shaft connection.
6. the fine buffering constant tension device of online exhibition according to claim 2, which is characterized in that be provided in the shaft
Angular displacement sensor（5）, the angle for detecting the shaft rotation, and the angular displacement sensor（5）With in the control
The heart connects.
7. the fine buffering constant tension device of online exhibition according to claim 1, which is characterized in that the swing arm（22）In curved
Roll over shape.
8. the fine buffering constant tension device of online exhibition according to claim 7, which is characterized in that the swing arm（22）It is divided into
First and second, and described first and it is second described between be in 100-150 °.
9. the fine buffering constant tension device of online exhibition according to claim 1, which is characterized in that the drive roll（1）, institute
State oscillating roller（2）With the fixed transition roller（3）Surface be both provided with nano ceramic coat.
10. the online fine application method with buffering constant tension device of exhibition according to claim 1, which is characterized in that including
Following steps：
Step 1, will fiber material be opened up（7）Pass sequentially through the drive roll（1）, the swing roller main body（23）It was fixed with described
Cross roller（3）, and start the drive roll（1）Power source and pulling device, fiber material to be opened up described in drive（7）Movement；
Step 2, tension sensor（4）The swing roller main body is monitored in real time（23）The pressure being subject to and the data transmission by detection
To the control centre, it is arranged in the swing arm mandrel（21）On angular displacement sensor（5）The swing arm mandrel is monitored in real time
（21）The data of detection are simultaneously transferred to the control centre by the angle of rotation；
Step 3, the control centre are according to the tension sensor（4）With the angular displacement sensor（5）The data of detection, control
Make the drive roll（1）And the rotating speed of the pulling device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810482023.9A CN108584508A (en) | 2018-05-18 | 2018-05-18 | Online exhibition fine buffering constant tension device and its application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810482023.9A CN108584508A (en) | 2018-05-18 | 2018-05-18 | Online exhibition fine buffering constant tension device and its application method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108584508A true CN108584508A (en) | 2018-09-28 |
Family
ID=63631855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810482023.9A Pending CN108584508A (en) | 2018-05-18 | 2018-05-18 | Online exhibition fine buffering constant tension device and its application method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108584508A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109457312A (en) * | 2018-10-26 | 2019-03-12 | 德蓝水技术股份有限公司 | Hollow-fibre membrane spinning machine |
| CN110042526A (en) * | 2019-05-14 | 2019-07-23 | 常州市新创智能科技有限公司 | A kind of woven carbon fiber unidirectional cloth fine device of exhibition |
| CN110950142A (en) * | 2019-12-13 | 2020-04-03 | 含山县金中环装饰材料有限公司 | Coiling mechanism is used in production of BOPP membrane |
| CN110963330A (en) * | 2019-12-13 | 2020-04-07 | 常州市新创智能科技有限公司 | Automatic paper placing device |
| CN111099419A (en) * | 2019-12-27 | 2020-05-05 | 邢台纳科诺尔精轧科技股份有限公司 | Tension control system and method for high-speed and wide-width battery pole piece equipment |
| CN111792420A (en) * | 2020-06-19 | 2020-10-20 | 广东瑞洲科技有限公司 | Lace feeding machine |
| CN111994728A (en) * | 2020-08-28 | 2020-11-27 | 常州市新创智能科技有限公司 | Yarn collecting method for controlling consistency of fiber spreading wrap angles of multilayer fibers and detecting tension |
| CN112027768A (en) * | 2020-09-07 | 2020-12-04 | 徐寿鹤 | Textile material tension self-adjusting equipment |
| CN112110256A (en) * | 2020-08-03 | 2020-12-22 | 西安理工大学 | Tension system experiment platform for roll material printing electronic equipment |
| CN115852563A (en) * | 2022-12-16 | 2023-03-28 | 广东康特斯织造装备有限公司 | Warp tension detection device and control method thereof |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109457312A (en) * | 2018-10-26 | 2019-03-12 | 德蓝水技术股份有限公司 | Hollow-fibre membrane spinning machine |
| CN110042526A (en) * | 2019-05-14 | 2019-07-23 | 常州市新创智能科技有限公司 | A kind of woven carbon fiber unidirectional cloth fine device of exhibition |
| CN110950142A (en) * | 2019-12-13 | 2020-04-03 | 含山县金中环装饰材料有限公司 | Coiling mechanism is used in production of BOPP membrane |
| CN110963330A (en) * | 2019-12-13 | 2020-04-07 | 常州市新创智能科技有限公司 | Automatic paper placing device |
| CN110950142B (en) * | 2019-12-13 | 2021-12-14 | 义乌伟岸塑业有限公司 | Coiling mechanism is used in production of BOPP membrane |
| CN111099419A (en) * | 2019-12-27 | 2020-05-05 | 邢台纳科诺尔精轧科技股份有限公司 | Tension control system and method for high-speed and wide-width battery pole piece equipment |
| CN111792420A (en) * | 2020-06-19 | 2020-10-20 | 广东瑞洲科技有限公司 | Lace feeding machine |
| CN112110256A (en) * | 2020-08-03 | 2020-12-22 | 西安理工大学 | Tension system experiment platform for roll material printing electronic equipment |
| CN111994728A (en) * | 2020-08-28 | 2020-11-27 | 常州市新创智能科技有限公司 | Yarn collecting method for controlling consistency of fiber spreading wrap angles of multilayer fibers and detecting tension |
| CN112027768A (en) * | 2020-09-07 | 2020-12-04 | 徐寿鹤 | Textile material tension self-adjusting equipment |
| CN112027768B (en) * | 2020-09-07 | 2021-03-26 | 浙江信纳医疗器械科技有限公司 | Textile material tension self-adjusting equipment |
| CN115852563A (en) * | 2022-12-16 | 2023-03-28 | 广东康特斯织造装备有限公司 | Warp tension detection device and control method thereof |
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Application publication date: 20180928 |
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| RJ01 | Rejection of invention patent application after publication |