CN115247312A - Multi-layer weft yarn shearing method - Google Patents
Multi-layer weft yarn shearing method Download PDFInfo
- Publication number
- CN115247312A CN115247312A CN202210008219.0A CN202210008219A CN115247312A CN 115247312 A CN115247312 A CN 115247312A CN 202210008219 A CN202210008219 A CN 202210008219A CN 115247312 A CN115247312 A CN 115247312A
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- China
- Prior art keywords
- yarn
- weft
- knife switch
- pressing
- yarn pressing
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Links
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000010008 shearing Methods 0.000 title claims abstract description 17
- 238000003825 pressing Methods 0.000 claims abstract description 79
- 238000005520 cutting process Methods 0.000 claims abstract description 27
- 238000003780 insertion Methods 0.000 claims abstract description 14
- 230000037431 insertion Effects 0.000 claims abstract description 14
- 238000009941 weaving Methods 0.000 claims abstract description 9
- 230000001960 triggered effect Effects 0.000 claims abstract description 8
- 230000000712 assembly Effects 0.000 claims description 5
- 238000000429 assembly Methods 0.000 claims description 5
- 239000004744 fabric Substances 0.000 abstract description 3
- 238000009987 spinning Methods 0.000 abstract description 2
- 230000001360 synchronised effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000002759 woven fabric Substances 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 229920006253 high performance fiber Polymers 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D49/00—Details or constructional features not specially adapted for looms of a particular type
- D03D49/70—Devices for cutting weft threads
-
- 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
Abstract
The invention relates to the technical field of spinning, in particular to a multi-layer weft yarn cutting method, which comprises the following steps: the method comprises the following steps: initializing weft yarn state, wherein weft yarns respectively penetrate through a yarn guide ring of a yarn pressing assembly and are arranged between a front knife switch and a rear knife switch; step two: pressing weft yarns, driving a yarn pressing cylinder to push a yarn pressing component, and fixing the weft yarns on a yarn pressing base by a rubber pressing block of the yarn pressing component; step three: when the weft insertion signal is triggered, the yarn pressing cylinder is opened, the weft yarn is introduced into the shed, and otherwise, the signal is continuously waited; step four: when the weft in-place signal is triggered, the yarn pressing cylinder is closed, otherwise, the signal is continuously waited; step five: and closing the shearing cylinder to push the front knife switch, shearing the weft yarn and returning to the original position, and continuously waiting for a next weft insertion trigger signal. After the scheme is adopted, the multi-rapier loom can be used for synchronously shearing multi-layer weft yarns after multi-rapier weft insertion, the structure complexity and the control difficulty are obviously reduced by adopting the cylinder driving, and the multi-rapier loom is suitable for weaving multi-layer special three-dimensional fabrics by a narrow loom.
Description
Technical Field
The invention relates to the technical field of spinning, in particular to a multi-layer weft yarn cutting method.
Background
The warp and weft yarns are interwoven to form a woven fabric, and after the weft yarns are introduced into a weaving opening in a rapier weft insertion mode, the weft yarns are quickly cut off through a cutting device, so that one weft insertion action is completed. The traditional weaving process is used for weaving two-dimensional plane woven fabrics, and generally adopts single shed and single rapier weft insertion. However, for multilayer integrally interwoven three-dimensional woven fabrics, multiple layers of weft yarns are often introduced simultaneously. Therefore, the traditional single-blade cutting mode is not suitable for the weaving process of the synchronous weft insertion of the multilayer rapier any more.
Under the background, the inventor further researches the special three-dimensional fabric woven by a small-batch low-speed narrow-width special weaving machine and develops a multi-layer weft yarn shearing method, and the method is generated by the method.
Disclosure of Invention
The invention aims to provide a multi-layer weft yarn cutting method which can be used for synchronously cutting multi-layer weft yarns after multi-rapier weft insertion, adopts cylinder driving, obviously reduces the structural complexity and the control difficulty, and is suitable for weaving multi-layer special three-dimensional fabrics by a narrow-width loom.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a multi-layer weft cutting method is characterized in that a plurality of yarn pressing components are arranged to respectively correspond to weft yarns, and the following steps are executed:
the method comprises the following steps: initializing weft yarn state, wherein weft yarns respectively penetrate through a yarn guide ring of a yarn pressing assembly and are arranged between a front knife switch and a rear knife switch;
step two: pressing weft yarns, driving a yarn pressing cylinder to push a yarn pressing component, and fixing the weft yarns on a yarn pressing base by a rubber pressing block of the yarn pressing component;
step three: when the weft insertion signal is triggered, the yarn pressing cylinder is opened, weft yarns are introduced into a shed, and otherwise, the signal is continuously waited;
step four: when the weft in-place signal is triggered, the yarn pressing cylinder is closed, otherwise, the signal is continuously waited;
step five: and closing the shearing cylinder to push the front knife switch, shearing the weft yarns and returning to the original position, and continuously waiting for a next weft insertion trigger signal.
The multi-layer weft yarns are synchronously and sequentially cut off through the knife switch, and the device has a compact integral structure and is simple to control.
Further, the cutting method is based on the following components:
the bracket component is used for being arranged on a base frame of the weaving machine;
the yarn pressing assemblies are arranged in the support assembly, and the plurality of yarn pressing assemblies are arranged in parallel and driven by the driving assembly to perform yarn pressing operation on the corresponding wefts;
the cutter assembly comprises a front knife switch and a rear knife switch and is used for cutting the weft yarns.
Furthermore, the bracket component comprises a front panel and a rear panel, the front panel and the rear panel are connected through a fixed cross beam, and a U-shaped fixed frame is fixed on the rear panel.
The bracket assembly serves as a connecting frame for connecting the remaining assemblies.
Further, the driving assembly comprises a yarn pressing cylinder, a cylinder baffle and a U-shaped adapter, through holes are formed in two sides of the U-shaped adapter, the cylinder baffle is fixed on one side, the yarn pressing assembly is fixed on one side, and the yarn pressing cylinder pushes the U-shaped adapter to move.
The U-shaped adapter has a certain buffering function.
Further, the yarn pressing assembly comprises a yarn guide ring, a rubber pressing block, a telescopic rod and a fixed rod, wherein the rubber pressing block is arranged at one end of the telescopic rod, the other end of the telescopic rod is positioned in a cavity, a spiral spring is arranged in the cavity, one end of the spiral spring is restrained on the fixed rod, and the fixed rod is arranged on the U-shaped adapter; the yarn guide ring is fixed on the U-shaped fixing frame, the annular hole of the yarn guide ring corresponds to the groove of the yarn pressing base, the groove corresponds to the rubber pressing block, and the weft yarns are pressed and held by the rubber pressing block through the yarn guide ring.
The rubber pressing blocks can complete telescopic movement through the springs, so that each rubber pressing block can independently press and hold the weft yarns.
Further, the cutter assembly further comprises a sliding rail and a sliding block, the front knife switch is connected with the shearing cylinder through a connecting piece and an L-shaped connecting piece, the rear knife switch is arranged on the U-shaped fixing frame, the front knife switch is connected with the sliding rail, the sliding rail is connected onto the sliding block, the sliding block is fixed onto the arch frame, and the front knife switch is in sliding friction contact with the rear knife switch.
The arched frame has elasticity and is used for pressing the sliding block and the sliding rail, so that the front knife switch is tightly attached to the rear knife switch, and carbon fibers, glass fibers or other high-performance fibers can be smoothly cut off.
Furthermore, the front knife switch is U-shaped, two sides of the U-shaped knife switch are attached to the rear knife switch, and the cutting edge of the front knife switch and the cutting edge of the rear knife switch have an inclined angle.
The purpose is to gradually close the front knife switch and the rear knife switch and avoid the incision from being blocked.
After adopting the scheme, compared with the prior art, the invention has the following advantages:
the horizontal switch blades are adopted, weft yarns are arranged in the vertical direction, the telescopic pressure rod is driven by the yarn pressing cylinder to realize synchronous and independent yarn pressing of the multilayer weft yarns, and the switch blades are driven by the shearing cylinder to realize synchronous and sequential shearing of the multilayer weft yarns, so that the multilayer weft yarn shearing device is compact in overall structure and simple to control.
Drawings
FIG. 1 is one of the schematic diagrams of the present invention;
FIG. 2 is a second schematic diagram of the present invention;
FIG. 3 is a third schematic diagram of the present invention;
FIG. 4 is a fourth schematic of the present invention;
FIG. 5 is a schematic view of an embodiment telescoping pole;
FIG. 6 is a flowchart of a control method according to an embodiment of the present invention.
Description of the reference symbols
A front panel 11, a rear panel 12, a fixed beam 13, a U-shaped fixed frame 14 and an arch frame 15;
a yarn pressing cylinder 21, a yarn pressing cylinder baffle 22 and a U-shaped adapter 23;
a front knife 31, a rear knife 32, an L-shaped adapter 33, a slide rail 34, a slide block 35,
a shearing cylinder 36;
a yarn guide ring 41, a rubber pressing block 42, an expansion link 43, a fixing rod 44 and a yarn pressing base 45.
Detailed Description
In order to clearly understand the technical spirit and the advantages of the present invention, the applicant below describes in detail by way of example, but the description of the example is not intended to limit the technical scope of the present invention, and any equivalent changes made according to the present inventive concept, which are merely in form and not in material, should be considered as the technical scope of the present invention.
In the following description, all the concepts of designing the directions or orientations of the upper, lower, left, right, front and rear are taken as examples of the position state of fig. 1, and therefore, the present invention should not be construed as being particularly limited to the technical solutions provided by the present invention.
Referring to fig. 1, a multi-layer weft cutting device comprises a front panel 11, wherein the front panel 11 is connected with a rear panel 12 through four fixed cross beams 13, and the rear panel 12 is fixed on a frame of a rapier loom in a use state. A U-shaped fixing frame 14 is fixed on the left side of the back panel, two fixing beams 13 on the right side are shown to be respectively in the upper and lower directions, an arch frame 15 is fixed on the inner side of each fixing beam 13, a sliding block 35 is respectively fixed on the arch surface of each arch frame 15, and a sliding rail 34 is respectively fixed on each sliding block. The front knife 31 is connected to the slide rail 34 and can reciprocate in the direction of the slide rail.
Referring to fig. 2 and 3, the yarn pressing assembly is shown, a yarn pressing cylinder 21 is fixedly arranged on a front panel 11, a U-shaped adaptor 23 is fixed on a yarn pressing cylinder baffle 22, through holes are formed in two sides of the U-shaped adaptor, one side of the U-shaped adaptor is fixed on the cylinder baffle 22, a telescopic rod module is fixed on one side of the U-shaped adaptor, the telescopic rod modules are arranged side by side in the vertical direction, the head ends of the telescopic rod modules are rubber pressing blocks 42, the rubber pressing blocks 42 are connected onto a telescopic rod 43, and each pressing block can synchronously and independently press and hold weft yarns by means of a spiral spring in an inner cavity of the telescopic rod module.
Referring to fig. 4, which shows a right side view of the cutting apparatus, a cutting cylinder 36 is attached to the front panel 11, and an L-shaped adaptor 33 is attached to the cylinder barrier, the L-shaped adaptor 33 having the front blade 31 attached thereto. Thereby, the front plate 11 is connected to the cylinder head, and the front blade 31 can perform the cutting operation by being driven by the cutting cylinder 36. The rear blade 32 is shown screwed to the U-shaped mounting bracket.
Referring to fig. 2 and 4, a telescopic rod module is shown in parallel, and eight telescopic rods are shown for pressing eight layers of weft yarns. The eighth quantity is only the preferred quantity of the embodiment, and creative efforts are not required for adjusting other quantities, so that the applicant does not need to describe any more.
Referring to fig. 5, which shows the internal components of the telescopic rod module, a rubber pressing block 42 is fixed to one end of a telescopic rod 43 through threads, the other end of the telescopic rod 43 is arranged in a cavity, a coil spring is arranged in the cavity, the other end of the coil spring is restrained on a fixing rod 44, the fixing rod is fixed to a U-shaped adapter through threads, and therefore the telescopic rod module is fixed to a yarn pressing cylinder, and synchronous and independent multi-layer weft yarn pressing operation is achieved.
A method of cutting a multi-layer weft yarn, one embodiment of which is as follows:
the method comprises the following steps: the state initialization is that weft yarns respectively pass through the yarn guide ring 41 and are arranged between the front knife switch 31 and the rear knife switch 32;
step two: the yarn pressing cylinder 21 is driven, and the rubber pressing block 42 is used for fixing the weft yarns on the yarn pressing base 45;
step three: when the weft insertion signal is triggered, the yarn pressing cylinder 21 is opened, and the weft yarn is introduced into the shed; otherwise, continuing to wait for the signal;
step four: when the weft in-position signal is triggered, the yarn pressing cylinder 21 is closed. Otherwise, continuing to wait for the signal;
step five: the shear cylinder 36 is closed, shearing the weft yarn and returning to the home position. And continuously waiting for the next weft insertion trigger signal.
This periodically reciprocates to perform a weft cutting operation.
In conclusion, the technical scheme provided by the invention makes up the defects of the multi-layer weft yarn cutting device.
Claims (8)
1. A multi-layer weft cutting method is characterized in that a plurality of yarn pressing components are arranged, so that each yarn pressing component corresponds to each weft, and the following steps are executed:
the method comprises the following steps: initializing weft yarn state, wherein weft yarns respectively penetrate through a yarn guide ring of a yarn pressing assembly and are arranged between a front knife switch and a rear knife switch;
step two: pressing weft yarns, driving a yarn pressing cylinder to push a yarn pressing component, and fixing the weft yarns on a yarn pressing base by a rubber pressing block of the yarn pressing component;
step three: when the weft insertion signal is triggered, the yarn pressing cylinder is opened, weft yarns are introduced into a shed, and otherwise, the signal is continuously waited;
step four: when the weft in-place signal is triggered, the yarn pressing cylinder is closed, otherwise, the signal is continuously waited;
step five: and closing the shearing cylinder to push the front knife switch, shearing the weft yarn and returning to the original position, and continuously waiting for a next weft insertion trigger signal.
2. The method of claim 1, wherein the method is carried out based on the following components:
the bracket component is used for being arranged on a base frame of the weaving machine;
the yarn pressing assemblies are arranged in the support assembly, and the plurality of yarn pressing assemblies are arranged in parallel and driven by the driving assembly to perform yarn pressing operation on corresponding wefts;
the cutter assembly comprises a front knife switch and a rear knife switch and is used for cutting the weft yarns.
3. The method of cutting off a multilayer weft according to claim 2, characterized in that: the bracket component comprises a front panel and a rear panel, the front panel and the rear panel are connected through a fixed cross beam, and a U-shaped fixed mount is fixed on the rear panel.
4. The method of cutting a multilayer weft according to claim 2, characterized in that: the driving assembly comprises a yarn pressing cylinder, a cylinder baffle and a U-shaped adapter, through holes are formed in two sides of the U-shaped adapter, the cylinder baffle is fixed on one side, the yarn pressing assembly is fixed on one side, and the yarn pressing cylinder pushes the U-shaped adapter to move.
5. The method of cutting a multilayer weft according to claim 2, characterized in that: the yarn pressing assembly comprises a yarn guide ring, a rubber pressing block, a telescopic rod and a fixed rod, wherein the rubber pressing block is arranged at one end of the telescopic rod, the other end of the telescopic rod is positioned in a cavity, a spiral spring is arranged in the cavity, one end of the spiral spring is restrained on the fixed rod, and the fixed rod is arranged on the U-shaped adapter; the yarn guide ring is fixed on the U-shaped fixing frame, the annular hole of the yarn guide ring corresponds to the groove of the yarn pressing base, the groove corresponds to the rubber pressing block, and the weft yarns are pressed and held by the rubber pressing block through the yarn guide ring.
6. The method of cutting a multilayer weft according to claim 2, characterized in that: the cutter assembly further comprises a sliding rail and a sliding block, the front knife switch is connected with the shearing cylinder through a connecting piece and an L-shaped connecting piece, the rear knife switch is arranged on the U-shaped fixing frame, the front knife switch is connected with the sliding rail, the sliding rail is connected to the sliding block, the sliding block is fixed to the arch frame, and the front knife switch is in sliding friction contact with the rear knife switch.
7. The method of claim 6, wherein: the arched frame has elasticity and is used for pressing the sliding block and the sliding rail, so that the front knife switch is tightly attached to the rear knife switch.
8. The method of claim 6, wherein: the front knife switch is in a U shape, two sides of the U shape are attached to the rear knife switch, and the cutting edge of the front knife switch and the cutting edge of the rear knife switch have an inclined angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210008219.0A CN115247312B (en) | 2022-01-05 | 2022-01-05 | Multilayer weft yarn cutting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210008219.0A CN115247312B (en) | 2022-01-05 | 2022-01-05 | Multilayer weft yarn cutting method |
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| Publication Number | Publication Date |
|---|---|
| CN115247312A true CN115247312A (en) | 2022-10-28 |
| CN115247312B CN115247312B (en) | 2023-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210008219.0A Active CN115247312B (en) | 2022-01-05 | 2022-01-05 | Multilayer weft yarn cutting method |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1200778A (en) * | 1995-10-10 | 1998-12-02 | 特克斯蒂尔马有限公司 | Mechanical loom with pneumatic weft threat insertion |
| EP1923495A1 (en) * | 2006-11-15 | 2008-05-21 | SCHÖNHERR Textilmaschinenbau GmbH | Weft insertion device, carpet loom equipped with such a device and method for treating a weft insertion error in such a loom |
| CN105568517A (en) * | 2016-02-22 | 2016-05-11 | 石家庄常山纺织股份有限公司 | Weft conveying device for carbon fiber knitting machine |
| CN108035053A (en) * | 2017-12-11 | 2018-05-15 | 中材科技股份有限公司 | A kind of Weft inserting device and Weft insertion method of multi-layer braided precast body |
| CN108517613A (en) * | 2018-06-08 | 2018-09-11 | 浙江新益针织制衣有限公司 | A kind of weaving pressure yarn, yarn cutting device |
| CN109162006A (en) * | 2018-08-28 | 2019-01-08 | 中材科技股份有限公司 | A kind of picking motion suitable for the high caliper fabric of plane |
| CN113122999A (en) * | 2021-03-29 | 2021-07-16 | 南京玻璃纤维研究设计院有限公司 | Automatic position-finding variable-width weft insertion device and working method thereof |
| CN113279119A (en) * | 2020-02-03 | 2021-08-20 | 史陶比尔拜罗伊特股份有限公司 | Weaving method, weft selector for implementing the method and loom comprising the weft selector |
-
2022
- 2022-01-05 CN CN202210008219.0A patent/CN115247312B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1200778A (en) * | 1995-10-10 | 1998-12-02 | 特克斯蒂尔马有限公司 | Mechanical loom with pneumatic weft threat insertion |
| EP1923495A1 (en) * | 2006-11-15 | 2008-05-21 | SCHÖNHERR Textilmaschinenbau GmbH | Weft insertion device, carpet loom equipped with such a device and method for treating a weft insertion error in such a loom |
| CN105568517A (en) * | 2016-02-22 | 2016-05-11 | 石家庄常山纺织股份有限公司 | Weft conveying device for carbon fiber knitting machine |
| CN108035053A (en) * | 2017-12-11 | 2018-05-15 | 中材科技股份有限公司 | A kind of Weft inserting device and Weft insertion method of multi-layer braided precast body |
| CN108517613A (en) * | 2018-06-08 | 2018-09-11 | 浙江新益针织制衣有限公司 | A kind of weaving pressure yarn, yarn cutting device |
| CN109162006A (en) * | 2018-08-28 | 2019-01-08 | 中材科技股份有限公司 | A kind of picking motion suitable for the high caliper fabric of plane |
| CN113279119A (en) * | 2020-02-03 | 2021-08-20 | 史陶比尔拜罗伊特股份有限公司 | Weaving method, weft selector for implementing the method and loom comprising the weft selector |
| CN113122999A (en) * | 2021-03-29 | 2021-07-16 | 南京玻璃纤维研究设计院有限公司 | Automatic position-finding variable-width weft insertion device and working method thereof |
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|---|---|
| CN115247312B (en) | 2023-11-21 |
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