CN108977997B - Fixed main nozzle for air-jet loom - Google Patents
Fixed main nozzle for air-jet loom Download PDFInfo
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- CN108977997B CN108977997B CN201810975976.9A CN201810975976A CN108977997B CN 108977997 B CN108977997 B CN 108977997B CN 201810975976 A CN201810975976 A CN 201810975976A CN 108977997 B CN108977997 B CN 108977997B
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- filter cloth
- inlet hole
- air
- elastic filter
- air inlet
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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
- D03D47/28—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed
- D03D47/30—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed by gas jet
- D03D47/3006—Construction of the nozzles
- D03D47/3013—Main nozzles
Abstract
The invention discloses a fixed main nozzle for an air-jet loom, which relates to the technical field of air-jet loom components and adopts the technical scheme that: the weft yarn feeding device comprises a main body, wherein a yarn feeding hole for weft yarns to pass through is formed in the main body, and the yarn feeding hole extends along the axial direction of the main body; the yarn feeding device is characterized in that an air inlet hole used for being communicated with an air outlet of an air compressor is formed in the side wall of the main body, the air inlet hole is communicated with the yarn feeding hole, elastic filter cloth used for filtering compressed air is arranged inside the air inlet hole, and the elastic filter cloth is distributed along the air inlet hole in the radial direction. The elastic filter cloth is arranged inside the air inlet hole and can filter impurities in the compressed air, so that the impurities are not easy to attach to weft yarns in the yarn inlet hole, and the quality of finally woven cloth is guaranteed to be high.
Description
Technical Field
The invention relates to the technical field of air jet loom components, in particular to a fixed main nozzle for an air jet loom.
Background
At present, chinese patent No. CN107675337A discloses an air jet weft insertion mechanism capable of improving accuracy, which includes a yarn drum, weft yarns, a yarn guide, a fixed main nozzle, a swing main nozzle, a special-shaped reed, and an auxiliary nozzle, wherein the weft yarns of the yarn drum are guided out of the fixed main nozzle through the yarn guide, the weft yarns ejected by the fixed main nozzle are guided into the swing main nozzle, and the weft yarns guided out by the swing main nozzle are butted with a shed along a reed hole of the special-shaped reed through a reed hole of the special-shaped reed.
In the use, need with air compressor machine and fixed main nozzle inner chamber intercommunication, and through the inside compressed air that injects into of air compressor machine to fixed main nozzle. However, the compressed air output from the air compressor generally contains certain impurities, such as moisture, oil droplets, dust, and the like. If this part of the compressed air is directly used for weft insertion, impurities in the compressed air are likely to adhere to the weft and finally affect the quality of woven cloth.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a fixed main nozzle for an air jet loom, which has the advantages that impurities in compressed air are not easy to contact with weft yarns in the fixed main nozzle, and the quality of finally woven cloth is better.
The technical purpose of the invention is realized by the following technical scheme: a fixed main nozzle for an air jet loom comprises a main body, wherein a yarn inlet hole for weft yarns to pass through is formed in the main body, and the yarn inlet hole extends along the axial direction of the main body; the yarn feeding device is characterized in that an air inlet hole used for being communicated with an air outlet of an air compressor is formed in the side wall of the main body, the air inlet hole is communicated with the yarn feeding hole, elastic filter cloth used for filtering compressed air is arranged inside the air inlet hole, and the elastic filter cloth is distributed along the air inlet hole in the radial direction.
Through above-mentioned technical scheme, in the use, the inside elastic filter cloth of inlet port can filter the impurity in the compressed air for impurity in the compressed air is difficult for with the woof contact that passes from advancing in the yarn hole, is to say from advancing to be difficult for adhering to on the woof that passes in the yarn hole having impurity, and the cloth quality that finally weaves and form is higher. Meanwhile, when impurities are attached to the elastic filter cloth, the air permeability of the elastic filter cloth is weakened, and the elastic filter cloth can be stretched and deformed under the action of compressed air. Meanwhile, part of the impurities attached to the surface of the elastic filter cloth are separated from the elastic filter cloth due to the deformation of the elastic filter cloth, so that the air permeability of the elastic filter cloth is restored.
Preferably, one side of the air inlet hole, which is close to the yarn inlet hole, is an acceleration section, and the inner diameter of the acceleration section gradually decreases towards one side of the yarn inlet hole.
Through the technical scheme, in the process that the compressed air flows through the accelerating section, the inner diameter of the accelerating section is gradually reduced towards one side of the yarn feeding hole, so that the flow speed of the compressed air is increased. So that the compressed air flowing out of the air inlet opening can carry the weft thread further away.
Preferably, a base body penetrates through the center of the elastic filter cloth, a cleaning piece is rotatably connected to the base body and abutted against the surface of the elastic filter cloth, and the cleaning piece is used for cleaning impurities attached to the elastic filter cloth; the base body is further provided with a driving piece, and the driving piece is used for driving the cleaning piece to rotate around the axis of the base body.
Through the technical scheme, in the using process, the driving piece controls the cleaning piece to rotate around the axis of the base body, and the cleaning piece can clean impurities attached to the elastic filter cloth in the rotating process. Therefore, the elastic filter cloth can continuously filter impurities in the compressed air in the using process of the auxiliary nozzle and can inform that the elastic filter cloth has good air permeability.
Preferably, the cleaning element comprises a rotating seat rotatably connected to the seat body, a plurality of mounting rods circumferentially and uniformly distributed on the side wall of the rotating seat, and a plurality of bristles uniformly distributed on the mounting rods, and the bristles extend to one side of the elastic filter cloth and abut against the elastic filter cloth.
Through above-mentioned technical scheme, in the use, the seat rotation is rotated in the driving piece drive, rotates the seat and drives the installation pole rotation, and the installation pole is at the rotation in-process, and the brush hair that sets up on the installation pole can contact with the elastic filter cloth and clear away adnexed impurity on the elastic filter cloth.
Preferably, the driving member comprises fan blades circumferentially and uniformly distributed on the side wall of the rotating seat.
Through above-mentioned technical scheme, at the in-process that compressed air flowed through the inlet port, compressed air and flabellum surface contact and drive the flabellum and rotate. Therefore, a driving source is not required to be additionally arranged to drive the cleaning piece to rotate, and the fixed main nozzle is more energy-saving and environment-friendly to use.
Preferably, a limit groove is formed in the side wall of the base body opposite to the fan blades, and the limit groove extends axially along the base body; the fan blades are hinged to the rotating seat, and the hinge axes of the fan blades are perpendicular to the central axis of the rotating seat; the fan blades are provided with limiting blocks, and the limiting blocks are embedded into the limiting grooves; and a spring is connected between the fan blade and the rotating seat and used for pushing the fan blade to one side of the elastic filter cloth.
Through the technical scheme, when certain impurities are attached to the elastic filter cloth, the air permeability of the elastic filter cloth is weakened, and the compressed air flowing through the air inlet hole blows and presses the elastic filter cloth to deform. In the process of deformation of the elastic filter cloth, the elastic filter cloth pushes the fan blades to rotate around the hinge shafts. When the fan blade rotates to the limit block and is separated from the limit groove, the fan blade starts to drive the rotating seat to rotate. Meanwhile, the installation rod and the bristles arranged on the installation rod rotate along with the rotating seat, and in the process, the bristles can remove impurities attached to the elastic filter cloth. When the impurities on the elastic filter cloth are almost completely removed, the air permeability of the elastic filter cloth is recovered, the deformation of the elastic filter cloth is gradually recovered, and at the moment, the spring applies elastic force pointing to one side of the elastic filter cloth to the fan blades. When the fan blade rotates to the position that the limiting block is opposite to the limiting groove, the fan blade rotates towards one side of the elastic filter cloth around the hinge shaft, the limiting block is embedded into the limiting groove, and the rotating seat cannot continue to rotate at the moment. Therefore, in the process that the compressed air flows through the air inlet hole, the fan blades are not easy to interfere with the compressed air.
Preferably, a plurality of guide grooves extending axially along the air inlet are formed in the inner wall of the air inlet, and the guide grooves are circumferentially and uniformly distributed by taking the axis of the air inlet as a center; the seat body is coaxially connected with a connecting rod, guide rods which are in one-to-one correspondence with the guide grooves are arranged on the side wall of the connecting rod, and the guide rods stretch into the corresponding guide grooves and are connected with the guide grooves in a sliding manner.
Through the technical scheme, when the elastic filter cloth is blown and pressed by compressed air to deform, the deformation direction of the elastic filter cloth is guided under the combined action of the connecting rod and the guide rod.
Preferably, the guide rod is connected to the connecting rod in a threaded manner.
Through the technical scheme, when the guide rod is abraded due to overlong service time, the guide rod can be screwed off from the connecting rod and replaced.
In summary, compared with the prior art, the beneficial effects of the invention are as follows:
1. the elastic filter cloth is arranged in the air inlet hole and can filter impurities in the compressed air, so that the impurities are not easy to attach to weft yarns in the yarn inlet hole, and the quality of finally woven cloth is high;
2. the seat body penetrates through the center of the elastic filter cloth, the cleaning piece is rotatably connected to the seat body, the driving piece used for driving the cleaning piece to rotate is further arranged on the seat body, the driving piece drives the cleaning piece to rotate in the use process, impurities attached to the elastic filter cloth can be removed in the rotation process of the cleaning piece, the elastic filter cloth can be ensured to continuously filter the impurities in the compressed air in the use process, and the elastic filter cloth can have good air permeability;
3. the inlet port is close to into yarn hole one side and is the section of accelerating, and the section of accelerating can accelerate the air that flows through to guarantee that compressed air can transport the woof to more distant place.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment, which is mainly used for showing an appearance structure of the embodiment;
FIG. 2 is a schematic sectional view of the embodiment, which is mainly used to show the components of the embodiments;
FIG. 3 is an enlarged view of portion A of FIG. 2;
fig. 4 is an enlarged view of a portion B of fig. 3.
Reference numerals: 1. a main body; 2. a yarn inlet hole; 3. an air inlet; 31. an acceleration section; 4. elastic filter cloth; 5. a base body; 6. a cleaning member; 61. a rotating seat; 62. mounting a rod; 63. brushing; 7. a drive member; 71. a fan blade; 8. a limiting groove; 9. a limiting block; 10. a spring; 11. a guide groove; 12. a connecting rod; 13. a guide rod.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
A fixed main nozzle for an air jet loom, as shown in figures 1 and 2, comprises a cylindrical main body 1, wherein a yarn inlet hole 2 for weft yarn to pass through is formed in the main body 1, and the central axis of the yarn inlet hole 2 is coincident with the central axis of the main body 1. An air inlet 3 communicated with the yarn inlet hole 2 is formed in the side wall of the main body 1, and in the process of using the fixed main nozzle, the air inlet 3 needs to be communicated with an air outlet of an air compressor through an air pipe. The side of the air inlet hole 3 close to the yarn inlet hole 2 is an accelerating section 31, and the inner diameter of the accelerating section 31 is gradually reduced towards the side of the yarn inlet hole 2, so that the flow speed of the compressed air can be improved in the process that the compressed air flows through the accelerating section 31.
As shown in FIG. 3, an elastic filter cloth 4 is installed inside the air inlet 3, and the central axis of the elastic filter cloth 4 coincides with the central axis of the air inlet 3. In the process that compressed air flows through the air inlet 3, the elastic filter cloth 4 can filter impurities in the compressed air, so that the impurities in the compressed air are not easy to contact with weft yarns in the yarn inlet holes 2, and the quality of cloth finally woven is high.
A plurality of guide grooves 11 are formed in the inner hole wall of the air inlet hole 3 close to the yarn inlet hole 2, the plurality of guide grooves 11 are circumferentially and uniformly distributed by taking the axis of the air inlet hole 3 as the center, and the guide grooves 11 axially extend along the air inlet hole 3. A seat body 5 penetrates through the center of the elastic filter cloth 4, a connecting rod 12 is coaxially connected to the seat body 5, and the connecting rod 12 extends to one side of the yarn inlet hole 2. The side wall of the connecting rod 12 is provided with guide rods 13 which are in one-to-one correspondence with the guide grooves 11, one end of each guide rod 13 is in threaded connection with the side wall of the connecting rod 12, and the other end of each guide rod 13 extends into the guide groove 11 and is abutted against the inner groove wall of the guide groove 11.
The seat body 5 is rotatably connected with a cleaning piece 6, and the cleaning piece 6 can remove impurities attached to the elastic filter cloth 4 in the rotating process. The cleaning element 6 comprises a plurality of mounting rods 62 circumferentially and uniformly distributed on the side wall of the rotating base 61, and a plurality of bristles 63 uniformly distributed on the mounting rods 62. In the present embodiment, the number of the mounting rods 62 is three, and each mounting rod 62 extends radially along the rotational axis. The end of the brush 63 away from the mounting rod 62 extends to one side of the elastic filter cloth 4 and abuts against the surface of the elastic filter cloth 4.
The seat body 5 is also provided with a driving piece 7, and the driving piece 7 is connected with the cleaning piece 6 and is used for driving the cleaning piece 6 to rotate. The driving member 7 includes a plurality of fan blades 71 circumferentially and uniformly distributed on the sidewall of the rotating base 61. During the process of the compressed air flowing through the air inlet 3, the compressed air contacts the surface of the fan blade 71 and pushes the fan blade 71 and the rotary base 61 to rotate integrally.
As shown in fig. 3 and 4, a position of the sidewall of the base 5 opposite to the fan blade 71 is provided with a limiting groove 8 extending along the axial direction of the base 5, and one end of the limiting groove 8 penetrates through an end of the base 5 close to the fan blade 71. One end of the fan blade 71 is hinged to the side wall of the rotating base 61 close to the base body 5, and the hinge axis of the fan blade 71 is perpendicular to the central axis of the rotating base 61. The position opposite to the limiting groove 8 in the fan blade 71 is convexly provided with a limiting block 9, the limiting block 9 is used for extending into the limiting groove 8, and when the limiting block 9 extends into the limiting groove 8, the limiting block 9 is abutted against the inner groove wall of the limiting groove 8. A spring 10 is connected between the rotating base 61 and the fan blade 71, and the spring 10 is used for applying an elastic force to the fan blade 71 towards one side of the elastic filter cloth 4, so that the fan blade 71 rotates towards one side of the elastic filter cloth 4.
The specific use process of the fixed main nozzle for the air jet loom is as follows: firstly, the weft yarns are controlled to penetrate through the yarn inlet hole 2, then the end part, far away from the yarn inlet hole 2, of the air inlet hole 3 is connected with an air outlet of the air compressor through the air pipe, so that compressed air generated by the air compressor enters the air inlet hole 3 through the air pipe, and then the compressed air is accelerated by the accelerating section 31 and flows into the yarn inlet hole 2 to drive the weft yarns to move.
In the process that the compressed air flows in the air inlet 3, the elastic filter cloth 4 in the air inlet 3 can filter impurities in the compressed air, so that the impurities are not easy to enter the yarn inlet 2. However, as the service life increases, more impurities adhere to the elastic filter cloth 4, and part of the filter pores on the elastic filter cloth 4 are blocked, so that the air permeability of the elastic filter cloth 4 is weakened. At this time, the compressed air blows and presses the elastic filter cloth 4 to deform while passing through the elastic filter cloth 4. At the same time, the guide rod 13 slides inside the guide groove 11, and the guide rod 13 guides the deformation direction of the elastic filter cloth 4 through the link 12. At the same time, the elastic filter cloth 4 applies pushing force to the fan blades 71, so that the fan blades 71 rotate towards the side far away from the yarn inlet hole 2.
When the fan blades 71 rotate to the limit blocks 9 and are separated from the limit grooves 8, the fan blades 71 drive the rotating base 61 to rotate under the action of compressed air, the rotating base 61 drives the installation rod 62 and the bristles 63 arranged on the installation rod 62 to rotate, and impurities attached to the elastic filter cloth 4 can be removed in the rotating process of the bristles 63. In this process, the air permeability of the elastic filter cloth 4 is gradually increased, and the deformation of the elastic filter cloth 4 is gradually restored. Meanwhile, the spring 10 drives the fan blade 71 to rotate towards the elastic filter cloth 4, and when the limiting block 9 on the fan blade 71 is embedded into the limiting groove 8, the fan blade 71 stops rotating.
The above description is intended to be illustrative of the present invention and not to limit the scope of the invention, which is defined by the claims appended hereto.
Claims (4)
1. A fixed main nozzle for an air jet loom comprises a main body (1), wherein a yarn inlet hole (2) for weft yarns to pass through is formed in the main body (1), and the yarn inlet hole (2) extends along the axial direction of the main body (1); offer on main part (1) lateral wall be used for with air compressor machine gas outlet intercommunication inlet port (3), just inlet port (3) communicate in advance yarn hole (2), characterized by: elastic filter cloth (4) for filtering compressed air is arranged in the air inlet hole (3), and the elastic filter cloth (4) is distributed along the air inlet hole (3) in the radial direction;
a base body (5) penetrates through the center of the elastic filter cloth (4), a cleaning piece (6) is rotatably connected to the base body (5), the cleaning piece (6) abuts against the surface of the elastic filter cloth (4), and the cleaning piece (6) is used for cleaning impurities attached to the elastic filter cloth (4); the base body (5) is also provided with a driving part (7), and the driving part (7) is used for driving the cleaning part (6) to rotate around the axis of the base body (5); the cleaning piece (6) comprises a rotating seat (61) rotatably connected to the seat body (5), a plurality of mounting rods (62) circumferentially and uniformly distributed on the side wall of the rotating seat (61), and a plurality of bristles (63) uniformly distributed on the mounting rods (62), wherein the bristles (63) extend to one side of the elastic filter cloth (4) and abut against the elastic filter cloth (4);
the driving piece (7) comprises fan blades (71) which are uniformly distributed on the side wall of the rotating seat (61) in the circumferential direction;
a limiting groove (8) is formed in the side wall of the base body (5) opposite to the fan blades (71), and the limiting groove (8) extends axially along the base body (5); the fan blades (71) are hinged to the rotating base (61), and the hinge axes of the fan blades (71) are perpendicular to the central axis of the rotating base (61); a limiting block (9) is arranged on the fan blade (71), and the limiting block (9) is embedded into the limiting groove (8); a spring (10) is connected between the fan blade (71) and the rotating seat (61), and the spring (10) is used for pushing the fan blade (71) to one side of the elastic filter cloth (4).
2. The fixed main nozzle for an air jet loom as claimed in claim 1, wherein: one side of the air inlet hole (3) close to the yarn inlet hole (2) is an accelerating section (31), and the inner diameter of the accelerating section (31) is gradually reduced towards one side of the yarn inlet hole (2).
3. The fixed main nozzle for an air jet loom as claimed in claim 1, wherein: a plurality of guide grooves (11) extending along the axial direction of the air inlet hole (3) are formed in the inner wall of the air inlet hole (3), and the guide grooves (11) are uniformly distributed in the circumferential direction by taking the axis of the air inlet hole (3) as the center; the base body (5) is coaxially connected with a connecting rod (12), guide rods (13) which are in one-to-one correspondence with the guide grooves (11) are arranged on the side walls of the connecting rod (12), and the guide rods (13) stretch into the corresponding guide grooves (11) and are connected with the guide grooves (11) in a sliding manner.
4. The fixed main nozzle for an air jet loom as claimed in claim 3, wherein: the guide rod (13) is connected to the connecting rod (12) in a threaded mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810975976.9A CN108977997B (en) | 2018-08-24 | 2018-08-24 | Fixed main nozzle for air-jet loom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810975976.9A CN108977997B (en) | 2018-08-24 | 2018-08-24 | Fixed main nozzle for air-jet loom |
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| Publication Number | Publication Date |
|---|---|
| CN108977997A CN108977997A (en) | 2018-12-11 |
| CN108977997B true CN108977997B (en) | 2020-01-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810975976.9A Active CN108977997B (en) | 2018-08-24 | 2018-08-24 | Fixed main nozzle for air-jet loom |
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU817107A1 (en) * | 1977-12-09 | 1981-03-30 | Литовский Научно-Исследовательскийинститут Текстильной Промышленности | Device for retaining weft in pneumatic loom |
| EP1508633B1 (en) * | 2003-08-15 | 2008-10-29 | Sultex AG | Jet loom |
| CN103510249A (en) * | 2013-09-24 | 2014-01-15 | 吴江唯奇布业有限公司 | Air-jet loom spraying nozzle with rectification air chamber |
| CN204849211U (en) * | 2015-07-01 | 2015-12-09 | 青岛天一集团红旗纺织机械有限公司 | Air jet loom air feeder and air jet loom |
| CN105177825A (en) * | 2015-08-14 | 2015-12-23 | 吴江福爱梁纺织有限公司 | Weaving main nozzle |
| CN106975284A (en) * | 2017-04-28 | 2017-07-25 | 合肥图腾龙企业管理事务所（有限合伙） | A kind of anticlogging industrial dust removal device |
| CN107485938B (en) * | 2017-09-28 | 2019-09-17 | 江苏正苏基础工程有限公司 | A kind of ventilation device air inlet filter device of energy conservation bridge construction |
| CN207599901U (en) * | 2017-11-29 | 2018-07-10 | 河北瑞鑫化工有限公司 | A kind of refrigeration equipment of automatic ash removing |
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2018
- 2018-08-24 CN CN201810975976.9A patent/CN108977997B/en active Active
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| CN108977997A (en) | 2018-12-11 |
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