CN115247312B - Multilayer weft yarn cutting method - Google Patents
Multilayer weft yarn cutting method Download PDFInfo
- Publication number
- CN115247312B CN115247312B CN202210008219.0A CN202210008219A CN115247312B CN 115247312 B CN115247312 B CN 115247312B CN 202210008219 A CN202210008219 A CN 202210008219A CN 115247312 B CN115247312 B CN 115247312B
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- Prior art keywords
- yarn
- weft
- pressing
- cylinder
- assembly
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- 238000005520 cutting process Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000003780 insertion Methods 0.000 claims abstract description 14
- 230000037431 insertion Effects 0.000 claims abstract description 14
- 230000001960 triggered effect Effects 0.000 claims abstract description 6
- 230000000712 assembly Effects 0.000 claims description 9
- 238000000429 assembly Methods 0.000 claims description 9
- 230000001360 synchronised effect Effects 0.000 abstract description 5
- 238000009941 weaving Methods 0.000 abstract description 5
- 239000004744 fabric Substances 0.000 abstract description 3
- 239000004753 textile Substances 0.000 abstract description 2
- 239000002759 woven fabric Substances 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 229920006253 high performance fiber Polymers 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
Abstract
The invention relates to the technical field of textile, in particular to a multi-layer weft yarn cutting method, which comprises the following steps of: step one: initializing weft yarn state, namely respectively passing weft yarns through yarn guide rings of the yarn pressing assembly, and arranging the weft yarns between a front knife switch and a rear knife switch; step two: the weft yarn is held by pressing, a yarn pressing cylinder is driven to push a yarn pressing assembly, and the weft yarn is fixed on a yarn pressing base by a rubber pressing block of the yarn pressing assembly; step three: when the weft insertion signal is triggered, the yarn pressing cylinder is opened, weft yarns are introduced into the shed, and otherwise, the signal is continuously waited; step four: when the weft yarn in-place signal is triggered, the yarn pressing cylinder is closed, otherwise, the signal waiting is continued; step five: the cutting cylinder is closed to push the front knife blade, cut the weft yarn and return to the original position, and the next weft insertion triggering signal is continued to be waited. After the scheme is adopted, the multi-layer weft yarn synchronous cutting device can be used for synchronously cutting multi-layer weft yarns after multi-rapier weft insertion, is driven by a cylinder, remarkably reduces the structural complexity and the control difficulty, and 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 textile, in particular to a multi-layer weft 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 port in a rapier weft insertion mode, the weft yarns are rapidly sheared by a shearing device, so that one weft insertion action is completed. Conventional weaving processes are used to weave two-dimensional planar woven fabrics, typically using a single shed, shan Jiangan weft insertion. However, for multi-layer integrally interwoven three-dimensional woven fabrics, multiple layers of weft yarns are often simultaneously introduced. Therefore, the traditional single-knife cutting mode is not suitable for the weaving process of multi-layer rapier synchronous weft insertion.
Under the background, the inventor further researches a special three-dimensional fabric woven by a small-batch low-speed narrow-width special loom to develop a multi-layer weft yarn cutting method, which is generated by the scheme.
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, is driven by an air cylinder, remarkably reduces the structural complexity and the control difficulty, and is suitable for weaving multi-layer special three-dimensional fabrics by a narrow loom.
In order to achieve the above object, the technical scheme of the present invention is as follows:
a multi-layer weft cutting method is characterized in that a plurality of yarn pressing assemblies are arranged, each yarn pressing assembly corresponds to each weft yarn, and the following steps are executed:
step one: initializing weft yarn state, namely respectively passing weft yarns through yarn guide rings of the yarn pressing assembly, and arranging the weft yarns between a front knife switch and a rear knife switch;
step two: the weft yarn is held by pressing, a yarn pressing cylinder is driven to push a yarn pressing assembly, and the weft yarn is fixed on a yarn pressing base by a rubber pressing block of the yarn pressing assembly;
step three: when the weft insertion signal is triggered, the yarn pressing cylinder is opened, weft yarns are introduced into the shed, and otherwise, the signal is continuously waited;
step four: when the weft yarn in-place signal is triggered, the yarn pressing cylinder is closed, otherwise, the signal waiting is continued;
step five: the cutting cylinder is closed to push the front knife blade, cut the weft yarn and return to the original position, and the next weft insertion triggering signal is continued to be waited.
The multi-layer weft yarns are synchronously and sequentially sheared by the knife switch, and the whole structure is compact and the control is simple.
Further, the above-described clipping method is based on the following components:
the support assembly is used for being installed on the loom base frame;
the yarn pressing assemblies are arranged in the bracket assembly, and a plurality of yarn pressing assemblies are arranged in parallel and driven by the driving assemblies to perform yarn pressing operation on the corresponding weft yarns;
a knife assembly including a front knife and a rear knife for cutting the weft yarn.
Further, 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 fixing frame is fixed on the rear panel.
The bracket assembly serves as a connection 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 guiding ring, a rubber pressing block, a telescopic rod and a fixing 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 fixing rod, and the fixing 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 yarn is pressed by the rubber pressing block through the yarn guide ring.
The rubber press blocks can complete telescopic movement through the springs, so that each rubber press block can independently press and hold weft yarns.
Further, the cutter assembly further comprises a sliding rail and a sliding block, the front cutter is connected with the cutting cylinder through an adapter and an L-shaped adapter, the rear cutter is arranged on the U-shaped fixing frame, the front cutter is connected with the sliding rail, the sliding rail is connected to the sliding block, the sliding block is fixed on the arch frame, and the front cutter is in sliding friction contact with the rear cutter.
The arch frame has elasticity and is used for pressing the sliding block and the sliding rail, so that the front knife switch and the rear knife switch are tightly attached, and carbon fibers, glass fibers or other high-performance fibers can be smoothly sheared.
Further, the front knife blade is shaped like a U, two sides of the U are attached to the rear knife blade, and the front knife blade and the rear knife blade have an inclined angle.
The purpose is that the front knife switch and the rear knife switch can be gradually switched on, and the notch is prevented from being blocked.
After the scheme is adopted, compared with the prior art, the invention has the following advantages:
the horizontal knife switch is adopted, weft yarns are arranged in the vertical direction, the yarn pressing cylinder drives the telescopic compression rod to realize synchronous and independent yarn pressing of the multi-layer weft yarns, and the cutting cylinder drives the knife switch to realize synchronous and sequential cutting of the multi-layer weft yarns, so that the multi-layer weft yarn cutting device has a compact integral structure and is simple to control.
Drawings
FIG. 1 is one of the schematic diagrams of the present invention;
FIG. 2 is a second schematic illustration of the present invention;
FIG. 3 is a third schematic illustration of the present invention;
FIG. 4 is a fourth schematic illustration of the present invention;
FIG. 5 is a schematic view of a telescoping rod of an embodiment;
FIG. 6 is a flow chart of a control method of an embodiment of the present invention.
Description of the reference numerals
A front panel 11, a rear panel 12, a fixed cross beam 13, a U-shaped fixing frame 14 and an arch frame 15;
a yarn pressing cylinder 21, a yarn pressing cylinder baffle 22 and a U-shaped adapter 23;
front blade 31, rear blade 32, l-shaped adapter 33, slide rail 34, slider 35,
a shear cylinder 36;
yarn guide ring 41, rubber briquetting 42, telescopic link 43, dead lever 44, yarn base 45.
Detailed Description
In order to make the technical spirit and advantageous effects of the present invention more clearly understood, the applicant shall make the following detailed description by way of example, but the description of the examples shall not limit the scope of the present invention, and any equivalent transformation made in only form according to the inventive concept shall be regarded as the scope of the technical scope of the present invention.
In the following description, the directional or azimuthal concepts of the designs up, down, left, right, front and back are taken as examples of the position state of fig. 1, and therefore, the present invention is not to be construed as being limited to the specific embodiments provided by the present invention.
Referring to fig. 1, a multi-layer weft yarn 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 rear panel, two fixing beams 13 on the right side are respectively arranged in an up-down direction, an arch 15 is fixed on the inner side of the fixing beams 13, a sliding block 35 is respectively fixed on the arch surface of the arch 15, and a sliding rail 34 is respectively fixed on the sliding blocks. The front blade 31 is connected to the slide rail 34 and is reciprocable in the direction of the slide rail.
Referring to fig. 2 and 3, a yarn pressing assembly is shown, a yarn pressing cylinder 21 is fixedly arranged on a front panel 11, a U-shaped adapter 23 is fixed on a baffle 22 of the yarn pressing cylinder, through holes are formed on two sides of the U-shaped adapter, one side of the U-shaped adapter is fixed on the baffle 22 of the cylinder, a telescopic rod module is fixed on one side of the U-shaped adapter, the telescopic rod module is vertically arranged side by side, the head ends of the telescopic rod module are rubber press blocks 42, the rubber press blocks 42 are connected to a telescopic rod 43, and each press block can synchronously and independently press 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 clipping device, a clipping cylinder 36 is attached to the front panel 11, and an L-shaped adaptor 33 is attached to the cylinder block, and a front blade 31 is attached to the L-shaped adaptor 33. By this means, the front panel 11 is connected to the cylinder shutter, and the front blade 31 is driven by the cutting cylinder 36 to perform the cutting operation. The rear blade 32 is shown secured to the U-shaped mount by screws.
Referring to fig. 2 and 4, there are shown vertically juxtaposed telescoping rod modules, eight telescoping rods being shown meaning that eight layers of weft yarn can be held. The number eight is only a preferred number of the present embodiment, and no inventive labor is required for adjusting other numbers, so that the applicant does not reiterate.
Referring to fig. 5, there is shown the internal components of the telescopic rod module, a rubber press block 42 is screwed to one end of a telescopic rod 43, the other end of the telescopic rod 43 is in a cavity, a coil spring is installed in the cavity, the other end of the coil spring is restrained on a fixing rod 44, and the fixing rod is screwed to a U-shaped adapter, so that the telescopic rod module is fixed to a yarn pressing cylinder, and synchronous and independent multi-layer weft yarn pressing operation is realized.
A multi-layer weft cutting method, one embodiment of which is as follows:
step one: the state initialization is to put the weft yarn between the front blade 31 and the rear blade 32 through the yarn guide ring 41, respectively;
step two: driving the yarn pressing cylinder 21, and fixing the weft yarn on the yarn pressing base 45 by the rubber pressing block 42;
step three: when the weft insertion signal triggers, the yarn pressing cylinder 21 opens and the weft yarn is introduced into the shed; otherwise, continuing waiting for the signal;
step four: when the weft in-place signal triggers, the yarn pressing cylinder 21 is closed. Otherwise, continuing waiting for the signal;
step five: the cutting cylinder 36 is closed to cut the weft yarn and return to the home position. And continuing to wait for the next weft insertion trigger signal.
Thereby, the weft yarn cutting operation is performed periodically.
In summary, the technical scheme provided by the invention makes up the defects of the multi-layer weft yarn cutting device.
Claims (3)
1. A multi-layer weft cutting method is characterized in that a plurality of yarn pressing assemblies are arranged, each yarn pressing assembly corresponds to each weft yarn, and the following steps are executed:
step one: initializing weft yarn state, namely respectively passing weft yarns through yarn guide rings of the yarn pressing assembly, and arranging the weft yarns between a front knife switch and a rear knife switch;
step two: the weft yarn is held by pressing, a yarn pressing cylinder is driven to push a yarn pressing assembly, and the weft yarn is fixed on a yarn pressing base by a rubber pressing block of the yarn pressing assembly;
step three: when the weft insertion signal is triggered, the yarn pressing cylinder is opened, weft yarns are introduced into the shed, and otherwise, the signal is continuously waited;
step four: when the weft yarn in-place signal is triggered, the yarn pressing cylinder is closed, otherwise, the signal waiting is continued;
step five: closing the cutting cylinder to push the front knife switch, cutting the weft yarn and returning to the original position, and continuing to wait for the next weft insertion trigger signal;
the method is realized based on the following components:
the support assembly is used for being installed on the loom base frame;
the yarn pressing assemblies are arranged in the bracket assembly, and a plurality of yarn pressing assemblies are arranged in parallel and driven by the driving assemblies to perform yarn pressing operation on the corresponding weft yarns;
the yarn pressing assembly comprises a yarn guiding ring, a rubber pressing block, a telescopic rod and a fixing 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 fixing rod, and the fixing 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 yarn is pressed by the rubber pressing block through the yarn guide ring;
a cutter assembly including a front blade and a rear blade for cutting the weft yarn;
the cutter assembly further comprises a sliding rail and a sliding block, the front cutter is connected with the cutting cylinder through an adapter and another L-shaped adapter, the rear cutter is arranged on the U-shaped fixing frame, the front cutter is connected with the sliding rail, the sliding rail is connected with the sliding block, the sliding block is fixed on the arch frame, and the front cutter is in sliding friction contact with the rear cutter; the arch frame is elastic and is used for pressing the sliding block and the sliding rail, so that the front switch blade and the rear switch blade are tightly attached; the front knife blade is U-shaped, two sides of the U-shaped are attached to the rear knife blade, and the front knife blade and the rear knife blade have an inclined angle.
2. The multi-layer weft yarn cutting method according to claim 1, wherein: the bracket component comprises a front panel and a rear panel, wherein the front panel and the rear panel are connected through a fixed cross beam, and a U-shaped fixing frame is fixed on the rear panel.
3. The multi-layer weft yarn cutting method according to claim 1, wherein: the driving assembly comprises a yarn pressing cylinder, a cylinder baffle and a U-shaped adapter, wherein 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.
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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115247312A CN115247312A (en) | 2022-10-28 |
| CN115247312B true CN115247312B (en) | 2023-11-21 |
Family
ID=83698119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210008219.0A Active CN115247312B (en) | 2022-01-05 | 2022-01-05 | Multilayer weft yarn cutting method |
Country Status (1)
| Country | Link |
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| CN (1) | CN115247312B (en) |
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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| Publication number | Publication date |
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| CN115247312A (en) | 2022-10-28 |
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