CN109234895B - Weft insertion device and weft insertion device of rapier loom - Google Patents
Weft insertion device and weft insertion device of rapier loom Download PDFInfo
- Publication number
- CN109234895B CN109234895B CN201811332778.7A CN201811332778A CN109234895B CN 109234895 B CN109234895 B CN 109234895B CN 201811332778 A CN201811332778 A CN 201811332778A CN 109234895 B CN109234895 B CN 109234895B
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- China
- Prior art keywords
- weft insertion
- weft
- rapier
- feeding
- hinged
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- 238000003780 insertion Methods 0.000 title claims abstract description 374
- 230000037431 insertion Effects 0.000 title claims abstract description 374
- 238000000034 method Methods 0.000 abstract description 20
- 239000002243 precursor Substances 0.000 abstract description 2
- 210000001847 jaw Anatomy 0.000 description 20
- 229920000049 Carbon (fiber) Polymers 0.000 description 10
- 239000004917 carbon fiber Substances 0.000 description 10
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 10
- 238000009954 braiding Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000009941 weaving Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 210000000080 chela (arthropods) Anatomy 0.000 description 1
- 210000004373 mandible Anatomy 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
Classifications
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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
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
Abstract
The invention relates to the technical field of looms, in particular to a weft insertion device and a weft insertion device of a rapier loom. The device comprises a weft insertion chuck and a weft insertion rapier, wherein the weft insertion chuck comprises a weft insertion upper jaw and a weft insertion lower jaw, the weft insertion lower jaw is arranged at the top end of the weft insertion rapier, a weft insertion sliding rod capable of sliding back and forth along the weft insertion direction is arranged in the weft insertion rapier, the weft insertion upper jaw is respectively hinged with the weft insertion rapier and the weft insertion sliding rod through weft insertion connecting rod structures, and when the weft insertion sliding rod moves backwards relative to the weft insertion rapier, the weft insertion sliding rod drives the weft insertion upper jaw to approach and clamp the weft insertion lower jaw. Solves the problems of large volume, complex control process and low stability of the weft insertion device in the prior art, ensures that the flat wire is not bent in the clamping process, and reduces the damage degree to the precursor wire.
Description
Technical Field
The invention relates to the technical field of looms, in particular to a weft insertion device and a weft insertion device of a rapier loom.
Background
The low-gram-weight carbon fiber fabric is a fabric with high fiber volume content and light weight, which is obtained by weaving by using flat filaments formed by expanding carbon fiber tows as warp yarns and weft yarns. The fabric can be used as a reinforcing material and is widely applied to the fields of aerospace, automobile manufacturing, rail transit, ships and yachts, high-end sports and leisure articles and the like. The carbon fiber has smooth surface, low friction coefficient and difficult clamping, and is especially a carbon fiber flat wire with a certain width. In order to weave a high-quality fiber fabric, the width of the flat filaments after expanding is required to be kept unchanged in the weft clamping process, and the filaments are not staggered and bent; the wire is not lost and broken, and the clamping is reliable. The shape of the clamping head is as small as possible, so that the shed size is correspondingly reduced, warp damage is avoided, and production efficiency is improved.
At present, only the mountain spinning stock limited company of the Shijia in China independently develops the automatic low-gram-weight carbon fiber weaving equipment. The flat thread weft yarn clamping technology is one of the key problems to be solved. The application with the application number of CN201720337129.0 discloses a weft insertion device of a carbon fiber braiding machine, and specifically discloses: the weft insertion device is arranged on one side of the carbon fiber braiding machine and is arranged opposite to the weft insertion device of the carbon fiber braiding machine, and comprises a base, a driving mechanism, a translation mechanism, a rapier and a clamping mechanism; the base is fixed on a wallboard of the carbon fiber braiding machine, a driving mechanism is assembled on the base, and the translational mechanism is driven to reciprocate by the driving mechanism; the translation mechanism comprises a linear sliding table and a linear guide rail, wherein two ends of the linear guide rail are fixed on a wallboard of the carbon fiber braiding machine through connecting plates, and the linear sliding table is assembled on the linear guide rail; one end of the rapier is fixed on the linear sliding table, and the other end of the rapier is provided with a clamping mechanism; the clamping mechanism is provided with a finger cylinder and a weft yarn clamp, and the opening and closing actions of the weft yarn clamp are controlled through the finger cylinder. The weft yarn pincers of the weft insertion device are controlled by the finger air cylinder, so that the volume of the device is increased, the work of the finger air cylinder is controlled, the process is complex, and the stability is low.
Disclosure of Invention
In order to solve the problems of large volume, complex control process and low stability of a weft insertion device in the prior art, the invention provides a weft insertion device of a rapier loom and the weft insertion device, which solve the technical problems, ensure that flat wires are not bent in the clamping process, and reduce the damage degree to the precursor wires. The technical scheme of the invention is as follows:
the utility model provides a rapier weaving machine's weft insertion device, includes weft insertion chuck and weft insertion rapier, weft insertion chuck includes weft insertion upper jaw and weft insertion lower jaw, the weft insertion lower jaw sets up the top of weft insertion rapier, weft insertion rapier embeds has the gliding weft insertion slide bar of edge weft insertion direction front and back, weft insertion upper jaw is articulated with weft insertion rapier and weft insertion slide bar respectively through weft insertion connecting rod structure, works as weft insertion slide bar is relative when weft insertion rapier retreats, weft insertion slide bar drives weft insertion upper jaw to weft insertion lower jaw is close to and presss from both sides tightly.
Through the structure of the weft insertion device, during weft insertion process, the weft insertion rapier belt drives the weft insertion sliding rod to advance, and the weft insertion sliding rod drives the weft insertion upper jaw to rotate through the weft insertion connecting rod structure, so that the weft insertion clamping head is in an open state; during return, the weft receiving rapier belt drives the weft receiving slide rod to retreat, the weft receiving slide rod drives the weft receiving upper jaw to rotate through the weft receiving connecting rod structure, and the weft receiving upper jaw is close to the weft receiving lower jaw and clamped, so that weft yarns are introduced. According to the weft insertion device, on the basis of an existing structure, the motion curve of the upper jaw of weft insertion can completely meet the actual weft insertion requirement only by arranging the weft insertion connecting rod structure, other control devices are not needed, the size of the weft insertion device is reduced, the control process is simple, and the stability is high.
Further, a weft insertion slide rail extending along the weft insertion direction is arranged in the weft insertion rapier, the weft insertion slide rail is positioned in the weft insertion slide rail and can slide along the weft feeding slide rail, the weft insertion rapier belt drives the weft insertion slide rail to slide, and first baffle plates are fixedly arranged on two sides of the weft insertion slide rail.
Further, the weft connecting rod structure comprises a first connecting rod and a second connecting rod, one end of the first connecting rod is hinged with a weft connecting upper jaw, the other end of the first connecting rod is hinged with a weft connecting rapier, one end of the second connecting rod is hinged with the weft connecting upper jaw, and the other end of the second connecting rod is hinged with a weft connecting sliding rod.
Further, the weft connecting rod structure comprises a third connecting rod and a fourth connecting rod, wherein the third connecting rod and the fourth connecting rod extend out from the weft connecting upper jaw, the tail end of the third connecting rod is hinged with the weft connecting rapier, one end of the fourth connecting rod is hinged with the weft connecting upper jaw, and the other end of the fourth connecting rod is hinged with the weft connecting sliding rod.
Further, the clamping surface of the upper weft insertion jaw is in a convex shape, the clamping surface of the lower weft insertion jaw is a plane, and the clamping surface of the upper weft insertion jaw and the clamping surface of the lower weft insertion jaw are both provided with a first attaching layer.
The weft insertion device of the rapier loom comprises the weft insertion device.
Further, the weft feeding device comprises a weft feeding chuck and a weft feeding rapier, the weft feeding chuck comprises a weft feeding upper jaw and a weft feeding lower jaw, the weft feeding lower jaw is arranged at the top end of the weft feeding rapier, the weft feeding rapier is provided with a weft feeding slide rod capable of sliding back and forth along the weft feeding direction, the weft feeding upper jaw is hinged with the weft feeding rapier and the weft feeding slide rod respectively through weft feeding connecting rod structures, and when the weft feeding slide rod moves forward relative to the weft feeding rapier, the weft feeding slide rod drives the weft feeding upper jaw to approach and clamp the weft feeding lower jaw.
Further, the weft feeding connecting rod structure comprises a fifth connecting rod and a sixth connecting rod, one end of the fifth connecting rod is hinged with a weft feeding upper jaw, and the other end of the fifth connecting rod is hinged with a weft feeding rapier; one end of the sixth connecting rod is hinged with the fifth connecting rod, and the other end of the sixth connecting rod is hinged with the weft feeding sliding rod.
Further, the weft feeding connecting rod structure comprises a seventh connecting rod and an eighth connecting rod, wherein the seventh connecting rod and the eighth connecting rod extend from the weft feeding upper jaw, the tail end of the seventh connecting rod is hinged with the weft feeding rapier, one end of the eighth connecting rod is hinged with the weft feeding upper jaw, and the other end of the eighth connecting rod is hinged with the weft feeding sliding rod.
Further, the clamping surface of the upper weft insertion jaw is in a convex shape, the clamping surface of the lower weft insertion jaw is a plane, and the clamping surface of the upper weft insertion jaw and the clamping surface of the lower weft insertion jaw are both provided with second auxiliary layers.
Based on the technical scheme, the invention has the following technical effects:
1. in the weft insertion device, during the weft insertion process, the weft insertion rapier belt drives the weft insertion sliding rod to advance, and the weft insertion sliding rod drives the weft insertion upper jaw to rotate through the weft insertion connecting rod structure, so that the weft insertion chuck is in an open state; during return, the weft receiving rapier belt drives the weft receiving slide rod to retreat, the weft receiving slide rod drives the weft receiving upper jaw to rotate through the weft receiving connecting rod structure, and the weft receiving upper jaw is close to the weft receiving lower jaw and clamped, so that weft yarns are introduced. On the basis of the existing structure, the weft insertion device enables the motion curve of the upper jaw of weft insertion to completely meet the actual weft insertion requirement by only arranging the weft insertion connecting rod structure, and no other control device is needed, so that the volume of the weft insertion device is reduced, the control process is simple, and the stability is high;
2. the weft insertion device is mechanically connected through the weft insertion connecting rod structure, and the whole process is accurate and stable; the weft insertion connecting rod structure comprises a plurality of forms, and only when the weft insertion sliding rod can retreat relative to the weft insertion rapier, the weft insertion connecting rod structure drives the weft insertion upper jaw to approach the weft insertion lower jaw and clamp the weft insertion upper jaw;
3. according to the weft insertion device, the clamping surface of the weft insertion upper jaw is in a convex shape, the clamping surface of the weft insertion lower jaw is in a plane, so that the yarn materials are prevented from being bent under stress, the friction force increasing materials are attached to the two clamping surfaces, the clamping reliability can be improved, and the damage to the weft materials can be effectively avoided;
4. the weft insertion device comprises a weft insertion device and a weft insertion device, on the basis of the existing structure, the motion curve of the upper jaw of weft insertion completely meets the actual weft insertion requirement through the weft insertion connecting rod structure, other control devices are not needed, the size of the weft insertion device is reduced, the control process is simple, and the stability is high.
Drawings
Fig. 1 is a schematic structural view of a weft insertion device according to a first embodiment of the present invention;
fig. 2 is a schematic structural view of a weft feeding device according to a first embodiment of the present invention;
fig. 3 is an operation state diagram of the weft insertion device according to the first embodiment of the present invention;
fig. 4 is another operation state diagram of the weft insertion device according to the first embodiment of the present invention;
fig. 5 is a schematic structural view of a weft insertion device according to a second embodiment of the present invention;
fig. 6 is a schematic structural view of a weft feeding device according to a second embodiment of the present invention;
fig. 7 is an operation state diagram of a weft insertion device according to a second embodiment of the present invention;
fig. 8 is another operation state diagram of the weft insertion device according to the second embodiment of the present invention;
in the figure: 1-a weft insertion device; 11-a weft insertion chuck; 111-weft insertion upper jaw; 1111—the clamping surface of the upper jaw of the weft insertion; 112-weft insertion chin; 1121—a clamping surface of the insertion mandible; 12-weft receiving rapier; 13-weft insertion slide bar; 14-weft connecting rod structure; 141-a first link; 142-a second link; 143-a third link; 144-fourth link; 15-a first baffle; 16-a first attachment layer; 2-weft feeding device; 21-a weft feeding chuck; 211-weft feeding upper jaw; 2111-clamping surface of the upper weft insertion; 212-weft insertion lower jaw; 2121-clamping surface of the weft insertion lower jaw; 22-weft feeding rapier; 23-weft feeding slide bar; 24-weft feeding connecting rod structure; 241-fifth link; 242-sixth link; 243-seventh links; 244-eighth link; 25-a second baffle; 26-a second attachment layer; 3-weft yarns.
Detailed Description
The invention will be further described with reference to the drawings.
Example 1
As shown in fig. 1-4, the embodiment provides a weft insertion device, the weft insertion device 1 comprises a weft insertion chuck 11 and a weft insertion rapier 12, the weft insertion chuck 11 comprises a weft insertion upper jaw 111 and a weft insertion lower jaw 112, the weft insertion lower jaw 112 is arranged at the top end of the weft insertion rapier 12, the weft insertion rapier 12 is provided with a weft insertion sliding rod 13 capable of sliding back and forth along the weft insertion direction, the weft insertion upper jaw 111 is hinged with the weft insertion rapier 12 and the weft insertion sliding rod 13 respectively through a weft insertion connecting rod structure 14, when the weft insertion sliding rod 13 advances relative to the weft insertion rapier 12, the weft insertion sliding rod 13 drives the weft insertion upper jaw 111 to be far away from the weft insertion lower jaw 112, and the weft insertion chuck 11 is opened; when the weft insertion slide bar 13 retreats relative to the weft insertion rapier 12, the weft insertion slide bar 13 drives the weft insertion upper jaw 111 to be close to the weft insertion lower jaw 112 and clamp, and the weft insertion clamping head 11 clamps.
The weft insertion rapier 12 is internally provided with a weft insertion slideway extending along the weft insertion direction, in this embodiment, the weft insertion slideway is a slideway with front and rear openings, and the weft insertion sliding rod 13 is positioned in the weft insertion slideway and can slide along the weft insertion slideway. Preferably, the length of the weft insertion slide bar 13 is smaller than the extension length of the weft insertion slide. Preferably, the weft insertion slide bar 13 is a rectangular parallelepiped slide bar. The weft insertion slide bar 13 slides under the drive of a weft insertion rapier belt (not shown in the figure), and preferably, in order to prevent the weft insertion slide bar 13 from being separated from the weft insertion slide, the front and rear sides of the weft insertion slide are fixedly provided with first baffles 15, and specifically, the first baffles 15 are fixedly arranged on the front and rear sides of the weft insertion slide through screws.
The weft insertion chuck 11 includes a weft insertion upper jaw 111 and a weft insertion lower jaw 112, and the weft insertion lower jaw 112 is disposed at the top end of the weft insertion rapier 12, preferably, the weft insertion lower jaw 112 may be integrally formed with the weft insertion rapier 12. The clamping surface 1111 of the upper jaw of the weft insertion is towards the lower jaw of the weft insertion 112, the clamping surface 1111 of the upper jaw of the weft insertion is in a convex shape, the clamping surface 1121 of the lower jaw of the weft insertion is towards the upper jaw of the weft insertion 111, the clamping surface 1121 of the lower jaw of the weft insertion is in a plane, preferably, the highest points of a plurality of projections of the clamping surface 1111 of the upper jaw of the weft insertion are on the same plane; the clamping surface 1111 of the upper jaw and the clamping surface 1121 of the lower jaw are provided with a first attachment layer 16 for increasing friction.
The weft insertion upper jaw 111 is hinged with the weft insertion rapier 12 and the weft insertion slide bar 13 through weft insertion connecting rod structures 14 respectively. The weft insertion link structure 14 includes a first link 141 and a second link 142, one end of the first link 141 is hinged to the weft insertion upper jaw 111, the other end of the first link 141 is hinged to the weft insertion rapier 12, one end of the second link 142 is hinged to the weft insertion upper jaw 111, and the other end of the second link 142 is hinged to the weft insertion slide bar 13. Preferably, the second link 142 is closer to the weft insertion clamp 11 than the first link 141; preferably, at least two first connecting rods 141 and second connecting rods 142 are hinged with the weft receiving rapier 12 from the front side and the rear side of the weft receiving upper jaw 111 respectively; further preferably, at least two first links 141 are disposed in parallel; at least two second links 142 are disposed in parallel. In this embodiment, two first connecting rods 141 and two second connecting rods 142 are respectively hinged from the front side and the rear side of the weft insertion device, the two first connecting rods 141 are arranged in parallel, and the two second connecting rods 142 are arranged in parallel.
The embodiment also provides a weft insertion device of a rapier loom, which comprises the weft insertion device 1, and further comprises a weft feeding device 2, wherein the weft feeding device 2 comprises a weft feeding chuck 21 and a weft feeding rapier 22, the weft feeding chuck 21 comprises a weft feeding upper jaw 211 and a weft feeding lower jaw 212, the weft feeding lower jaw 212 is arranged at the top end of the weft feeding rapier 22, a weft feeding slide bar 23 capable of sliding back and forth along the weft feeding direction is arranged in the weft feeding rapier 22, the weft feeding upper jaw 212 is respectively hinged with the weft feeding rapier 22 and the weft feeding slide bar 23 through a weft feeding connecting rod structure 24, and when the weft feeding slide bar 23 advances relative to the weft feeding rapier 22, the weft feeding slide bar 23 drives the weft feeding upper jaw 211 to approach the weft feeding lower jaw 212, and the weft feeding chuck 21 is clamped; when the weft feeding slide 23 retreats relative to the weft feeding rapier 22, the weft feeding slide 23 drives the weft feeding upper jaw 211 to be away from the weft feeding lower jaw 212, and the weft feeding cartridge 21 is opened.
The weft feeding rapier 22 is internally provided with a weft feeding slide extending along the weft feeding direction, in this embodiment, the weft feeding slide is a slide with front and rear openings, and the weft feeding slide rod 23 is positioned in the weft feeding slide and can slide along the weft feeding slide. Preferably, the length of the weft insertion slide 23 is smaller than the extension of the weft insertion slideway. The weft feeding slide bar 23 slides under the driving of a weft feeding rapier band (not shown in the figure), and preferably, in order to prevent the weft feeding slide bar 23 from being separated from the weft feeding slide, the front and rear sides of the weft feeding slide are fixedly provided with second baffles 25, and specifically, the second baffles 25 are fixedly arranged on the front and rear sides of the weft feeding slide through screws.
The weft feeding clamp 21 includes a weft feeding upper jaw 211 and a weft feeding lower jaw 212, and the weft feeding lower jaw 212 is provided at the top end of the weft feeding rapier 22, preferably, the weft feeding lower jaw 212 may be integrally formed with the weft feeding rapier 22. The clamping surface 2111 of the upper weft insertion jaw faces the lower weft insertion jaw 212, the clamping surface 2111 of the upper weft insertion jaw is in a convex shape, the clamping surface 2121 of the lower weft insertion jaw faces the upper weft insertion jaw 211, the clamping surface 2121 of the lower weft insertion jaw is in a plane, and preferably, the highest points of the plurality of projections of the clamping surface 2111 of the upper weft insertion jaw are located on the same plane; the clamping surface 2111 of the upper weft insertion jaw and the clamping surface 2121 of the lower weft insertion jaw are provided with a second attachment layer 26 for increasing friction.
The weft insertion upper jaw 211 is hinged with the weft insertion rapier 22 and the weft insertion slide bar 23 by a weft insertion link structure 24, respectively. The weft feeding link structure 24 comprises a fifth link 241 and a sixth link 242, wherein one end of the fifth link 241 is hinged with the weft feeding upper jaw 211, and the other end of the fifth link 241 is hinged with the weft feeding rapier 22; one end of the sixth link 241 is hinged with the fifth link 241, and the other end of the sixth link 241 is hinged with the weft feeding slide bar 23. Preferably, at least two fifth links 241 are hinged with the weft feeding rapier 22 from the front and rear sides of the weft feeding upper jaw 211, respectively; further preferably, at least two fifth links 241 are disposed in parallel. In this embodiment, the number of the fifth links 241 is four, wherein two fifth links 241 are hinged to the weft feeding rapier 22 from the front side of the weft feeding upper jaw 211, and the other two fifth links 241 are hinged to the weft feeding rapier 22 from the rear side of the weft feeding upper jaw 211. The number of the sixth connecting rods 242 is two, the two sixth connecting rods 242 are respectively hinged from the front side and the rear side of the weft feeding device, the two sixth connecting rods 242 are arranged in parallel, and the two sixth connecting rods 242 are respectively hinged with the middle parts of the adjacent fifth connecting rods 241.
Based on the above structure, the working principle of the weft insertion device in this embodiment is: the weft feeding device 2 is characterized in that the weft feeding jaw 212 is positioned at the front end part of the weft feeding rapier 22 in actual use, the weft feeding jaw 212 moves along with the weft feeding rapier 22, the weft feeding slide bar 23 is arranged in the weft feeding slideway of the weft feeding rapier 22, and the weft feeding chuck 21 is in a closed state and is not clamped or opened when no external force is driven. In the weft delivery process, when the weft delivery device 2 is positioned at a process starting position, the weft delivery slide bar 23 is subjected to backward tension, the weft delivery chuck 21 is in an open state, weft yarns 3 are delivered, when weft delivery is advanced, the weft delivery slide bar 23 slides in the advancing direction relative to the weft delivery rapier 22 under the action of a weft delivery rapier band, the sixth connecting rod 242 is driven to drive the fifth connecting rod 241 to rotate, the weft delivery upper jaw 211 is driven to rotate, the weft delivery lower jaw 212 is clamped, the weft delivery chuck 21 keeps a clamping state, and the weft yarns 3 are advanced; when the weft feeding device 2 is at the return starting position, the weft feeding slide bar 23 is pushed forward, the weft feeding chuck 21 is in a clamping state, and when the weft feeding chuck starts to retreat, the weft feeding slide bar 23 slides backwards relative to the weft feeding rapier 22, the weft feeding jaw 212 is opened, and the weft yarns 3 are fed out;
when the weft insertion device 1 is in actual use, the weft insertion lower jaw 112 is positioned at the front end part of the weft insertion rapier 12, the weft insertion lower jaw 112 moves along with the weft insertion rapier 12, the weft insertion sliding rod 13 is arranged in a weft insertion slideway of the weft insertion rapier 12, and when no external force is used for driving, the weft insertion clamping head 11 is in a closed state and is not clamped or opened; when the weft insertion process is carried out, the weft insertion slide bar 13 is subjected to backward pulling force when the weft insertion device 1 is positioned at a process starting position, the weft insertion chuck 11 is in a clamping state, when the weft insertion slide bar 13 moves forwards, the weft insertion slide bar 13 slides in the forward direction, the second connecting rod 142 is driven to drive the weft insertion upper jaw 111 to rotate, the weft insertion upper jaw 111 is opened, and when the weft insertion position is reached, the weft insertion chuck 11 is in an open state, so that weft yarns 3 can be conveniently fed; when the weft insertion device 1 is in the return start position, the weft insertion chuck 11 is opened by the pushing force, and when the weft insertion slide bar 13 starts to retreat, it moves in the retreating direction, and clamps the weft insertion upper jaw 111, and the weft yarn 3 is inserted. When the weft insertion clamp 11 moves to one end of the weft insertion rapier 12 entering the necking, the weft insertion is finished, the weft insertion slide bar 13 drives the weft insertion clamp 11 to open, and the weft insertion clamp 11 releases the weft yarn.
Example two
As shown in fig. 5 to 8, this embodiment provides a weft insertion device, which is substantially the same as the first embodiment except that the front end of the weft insertion rapier 12 of the weft insertion device of this embodiment functions as the weft insertion lower jaw, and the upper surface of the front end of the weft insertion rapier 12 near the weft insertion upper jaw 111 is a clamping surface 1121 of the weft insertion lower jaw.
The weft insertion link structure 14 of the weft insertion device of the present embodiment is different from that of the first embodiment: the weft insertion link structure 14 includes a third link 143 and a fourth link 144, the third link 143 extends from a side of the weft insertion upper jaw close to the weft insertion rapier 12, the end of the third link 143 is hinged to the weft insertion rapier 12, one end of the fourth link 144 is hinged to the weft insertion upper jaw 111, and the other end of the fourth link 144 is hinged to the weft insertion slide bar 13.
The present embodiment also provides a weft insertion device, including the weft insertion device 1 described above, and further including a weft insertion device 2, the weft insertion device 2 in this embodiment has substantially the same structure as the weft insertion device in the first embodiment, except that the front end of the weft insertion rapier 22 of the weft insertion device of this embodiment functions as a weft insertion lower jaw, and the upper surface of the front end of the weft insertion rapier 22, which is close to the weft insertion upper jaw 211, is a clamping surface 2121 of the weft insertion lower jaw.
The weft feeding link structure 24 of the weft feeding device 2 of the present embodiment is different from the first embodiment: the weft feeding link structure 24 includes a seventh link 243 and an eighth link 244, the seventh link 243 extends from one side of the weft feeding upper jaw 211 near the weft feeding rapier 22, the end of the seventh link 243 is hinged with the weft feeding rapier 22, one end of the eighth link 244 is hinged with the weft feeding upper jaw 211, and the other end of the eighth link 244 is hinged with the weft feeding sliding bar 23.
Based on the above structure, the working principle of the weft insertion device in this embodiment is: the weft feeding slide bar 23 is arranged in the weft feeding slide way of the weft feeding rapier 22 when the weft feeding device is in actual use, and the weft feeding clamp 21 is in a closed state and is not clamped or opened when no external force is used for driving. In the weft delivery process, when the weft delivery device 2 is positioned at a process starting position, the weft delivery slide bar 23 is subjected to backward tension, the weft delivery chuck 21 is in an open state, weft yarns 3 are delivered, and when weft delivery is advanced, the weft delivery slide bar 23 slides in the advancing direction relative to the weft delivery rapier 22 under the action of the weft delivery rapier band, and the eighth connecting rod 244 is driven to drive the seventh connecting rod 243 to rotate so as to drive the weft delivery upper jaw 211 to rotate, and the weft delivery chuck 21 is closed to advance the weft yarns 3; when the weft feeding device 2 is in a return starting position during return, the weft feeding slide bar 23 is pushed forward, the weft feeding chuck 21 is in a clamping state, and when the weft feeding slide bar starts to retreat, the weft feeding slide bar 23 slides backwards relative to the weft feeding rapier 22, the weft feeding chuck 21 is opened, and the weft yarns 3 are fed out;
when the weft insertion device 1 is actually used, the weft insertion sliding rod 13 is arranged in the weft insertion slideway of the weft insertion rapier 12, and when no external force is used for driving, the weft insertion clamping head 11 is in a closed state and is not clamped or opened; when the weft insertion process is carried out, the weft insertion slide bar 13 is subjected to backward tension when the weft insertion device 1 is positioned at a process starting position, the weft insertion chuck 11 is in a clamping state, when the weft insertion slide bar 13 moves forwards, the fourth connecting rod 144 is driven to slide in the forward direction, the third connecting rod 143 is driven to rotate, the weft insertion upper jaw 111 is driven to rotate, the weft insertion chuck 11 is opened, and when the weft insertion position is reached, the weft insertion chuck 11 is in an open state, so that weft yarns 3 can be fed conveniently; when the weft inserting device 1 is in the return starting position, the weft inserting chuck 11 is opened by thrust, when the weft inserting slide bar 13 starts to move backward, the fourth connecting rod 144 is driven to drive the third connecting rod 143 to rotate, and then the weft inserting upper jaw 111 is driven to rotate, the weft inserting chuck 11 clamps and the weft yarn 3 is introduced. When the weft insertion clamp 11 moves to one end of the weft insertion rapier 12 entering the necking, the weft insertion is finished, the weft insertion slide bar 13 drives the weft insertion clamp 11 to open, and the weft insertion clamp 11 releases the weft yarn.
In the two embodiments disclosed above, the weft insertion device 2 in the first embodiment may also be used in combination with the weft insertion device 1 in the second embodiment, and the weft insertion device 1 in the first embodiment may also be used in combination with the weft insertion device 2 in the second embodiment, so long as the weft insertion effect can be achieved.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present invention.
Claims (9)
1. The weft insertion device of the rapier loom is characterized by comprising a weft insertion chuck (11) and a weft insertion rapier (12), wherein the weft insertion chuck (11) comprises a weft insertion upper jaw (111) and a weft insertion lower jaw (112), the weft insertion lower jaw (112) is arranged at the top end of the weft insertion rapier (12), a weft insertion sliding rod (13) capable of sliding back and forth along the weft insertion direction is arranged in the weft insertion rapier (12), the weft insertion upper jaw (111) is hinged with the weft insertion rapier (12) and the weft insertion sliding rod (13) respectively through a weft insertion connecting rod structure (14), and when the weft insertion sliding rod (13) retreats relative to the weft insertion rapier (12), the weft insertion sliding rod (13) drives the weft insertion upper jaw (111) to approach to the weft insertion lower jaw (112) and clamp; the weft connecting rod structure (14) comprises a first connecting rod (141) and a second connecting rod (142), one end of the first connecting rod (141) is hinged with a weft connecting upper jaw (111), the other end of the first connecting rod (141) is hinged with a weft connecting rapier (12), one end of the second connecting rod (142) is hinged with the weft connecting upper jaw (111), and the other end of the second connecting rod (142) is hinged with a weft connecting sliding rod (13); the two first connecting rods (141) and the two second connecting rods (142) are hinged from the front side and the rear side of the weft insertion device respectively, the two first connecting rods (141) are arranged in parallel, and the two second connecting rods (142) are arranged in parallel.
2. Weft insertion device for a rapier loom according to claim 1, characterized in that the weft insertion rapier (12) is internally provided with a weft insertion slide extending in the weft insertion direction, the weft insertion slide (13) is arranged in the weft insertion slide and can slide along the weft feeding slide, the weft insertion rapier belt drives the weft insertion slide (13) to slide, and the two sides of the weft insertion slide are fixedly provided with first baffles (15).
3. Weft insertion device for a rapier loom according to claim 1, characterized in that the weft insertion link structure (14) comprises a third link (143) extending from the weft insertion upper jaw (111) and a fourth link (144), the end of the third link (143) being hinged to the weft insertion rapier (12), one end of the fourth link (144) being hinged to the weft insertion upper jaw (111) and the other end of the fourth link (144) being hinged to the weft insertion slider (13).
4. Weft insertion device for a rapier loom according to claim 1, characterized in that the clamping surface (1111) of the weft insertion upper jaw is of convex shape and the clamping surface (1121) of the weft insertion lower jaw is of planar surface, and that both the clamping surface (1111) of the weft insertion upper jaw and the clamping surface (1121) of the weft insertion lower jaw are provided with a first attachment layer (16).
5. Weft insertion device for a rapier loom, characterized in that it comprises a weft insertion device (1) according to any one of claims 1 to 4.
6. Weft insertion device according to claim 5, characterized in that it further comprises a weft insertion device (2), the weft insertion device (2) comprises a weft insertion chuck (21) and a weft insertion rapier (22), the weft insertion chuck (21) comprises a weft insertion upper jaw (211) and a weft insertion lower jaw (212), the weft insertion lower jaw (212) is arranged at the top end of the weft insertion rapier (22), the weft insertion rapier (22) is provided with a weft insertion slide bar (23) which can slide back and forth along the weft insertion direction, the weft insertion upper jaw (211) is hinged with the weft insertion rapier (22) and the weft insertion slide bar (23) through a weft insertion connecting rod structure (24), and when the weft insertion slide bar (23) advances relative to the weft insertion rapier (22), the weft insertion slide bar (23) drives the weft insertion upper jaw (211) to approach and clamp towards the weft insertion lower jaw (212).
7. Weft insertion device for a rapier loom according to claim 6, characterized in that the weft feeding link structure (24) comprises a fifth link (241) and a sixth link (242), one end of the fifth link (241) being hinged to the weft feeding upper jaw (211), the other end of the fifth link (241) being hinged to the weft feeding rapier (22); one end of the sixth connecting rod (242) is hinged with the fifth connecting rod (241), and the other end of the sixth connecting rod (242) is hinged with the weft feeding sliding rod (23).
8. Weft insertion device for a rapier loom according to claim 6, characterized in that the weft feeding link structure (24) comprises a seventh link (243) extending from the weft feeding upper jaw (211) and an eighth link (244), the end of the seventh link (243) being hinged to the weft feeding rapier (22), one end of the eighth link (244) being hinged to the weft feeding upper jaw (211), the other end of the eighth link (244) being hinged to the weft feeding sliding bar (23).
9. Weft insertion device for a rapier loom according to claim 6, characterized in that the clamping surface (2111) of the upper weft insertion jaw is convex, the clamping surface (2121) of the lower weft insertion jaw is planar, and that the clamping surface (2111) of the upper weft insertion jaw and the clamping surface (2121) of the lower weft insertion jaw are each provided with a second additional layer (26).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811332778.7A CN109234895B (en) | 2018-11-09 | 2018-11-09 | Weft insertion device and weft insertion device of rapier loom |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811332778.7A CN109234895B (en) | 2018-11-09 | 2018-11-09 | Weft insertion device and weft insertion device of rapier loom |
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| CN109234895A CN109234895A (en) | 2019-01-18 |
| CN109234895B true CN109234895B (en) | 2024-02-20 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114622331B (en) * | 2022-03-21 | 2023-03-21 | 武汉纺织大学 | Ultra-wide width weft insertion system for energy recovery by utilizing spring and sucker |
| CN116005325B (en) * | 2023-03-27 | 2024-01-30 | 无锡市鼎麒新材料科技有限公司 | Weft insertion device for carbon fiber braiding machine |
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