An irregular swing six-color main nozzle

Abstract

This utility model relates to the technical field of weft insertion devices for air-jet looms, specifically to a non-circular, six-color main nozzle. The design features six nozzle assemblies mounted on an aluminum sleeve, comprising three different nozzle cores: a 3.0mm large-aperture core for roving, a 2.0mm large-aperture core for medium yarn, and a 1.5mm small-aperture core for fine yarn. This allows for precise adjustment of the weft insertion flow rate according to the yarn thickness, preventing energy waste or insufficient weft insertion. The bracket and support plate are connected via a waist-shaped hole and fixing screws, allowing for a small range of nozzle angle adjustments to meet the needs of different production scenarios. The interconnected design of the air inlet connector, accelerator, main nozzle, and nozzle core ensures efficient application of compressed airflow to the weft surface. The nylon sleeve and positioning pins further enhance structural stability and adjustment precision.

Description

Technical Field

[0001] This utility model relates to the technical field of weft insertion devices for air-jet looms, and in particular to a non-circular oscillating six-color main nozzle. Background Technology

[0002] As a key piece of equipment in the modern textile industry, the weft insertion device of an air-jet loom uses compressed air jets to pull the weft yarn, enabling the weft yarn to pass through the shed quickly and efficiently for weaving. With its significant advantages of high production speed and high labor productivity, this device has been widely used in the production of plain and textured fabrics, as well as coarse and fine high-density fabrics. By precisely controlling the airflow, it ensures the stability and accuracy of the weft yarn during high-speed movement, thereby greatly improving the quality of the fabric and production efficiency.

[0003] However, traditional weft insertion devices often struggle to achieve precise weft insertion flow control for yarns of different thicknesses. This results in either excessive flow leading to energy waste or insufficient flow affecting the weft insertion effect, thus impacting the overall quality of the fabric. Furthermore, existing nozzle structures have limitations in angle adjustment, making it difficult to meet the diverse needs of different production scenarios. Utility Model Content

[0004] The purpose of this invention is to provide a non-circular, oscillating, six-color main nozzle, which aims to solve the problem that traditional weft insertion devices often struggle to achieve precise weft insertion flow control for yarns of different thicknesses. This results in either excessive flow causing energy waste or insufficient flow affecting the weft insertion effect, thus impacting the overall quality of the fabric. Furthermore, existing nozzle structures also have limitations in angle adjustment, making it difficult to meet the diverse needs of different production scenarios.

[0005] To achieve the above objectives, this utility model employs an irregularly shaped, oscillating, six-color main nozzle, comprising an aluminum sleeve, a bracket, two fixing bolts, and a support plate. The outer side of the aluminum sleeve has multiple first mounting holes, each of which is connected to an air inlet connector. One end of the aluminum sleeve has multiple second mounting holes, and the first mounting holes communicate with the second mounting holes. Each mounting hole contains a nozzle core, and the other end of each nozzle core is equipped with an accelerator. One end of the accelerator is equipped with a main nozzle pipe, and both the nozzle core and the accelerator extend beyond the other end of the aluminum sleeve. The bracket is equipped with a first elastic sleeve and a second elastic sleeve, the tightness of which is adjusted by fixing screws. The bracket has a waist-shaped hole, and the aluminum sleeve is disposed within the first elastic sleeve. Multiple main nozzle pipes extend beyond the second elastic sleeve. The bracket is fixedly connected to the support plate by two fixing bolts and is located above the support plate, with one of the fixing bolts located within the waist-shaped hole.

[0006] The aluminum sleeve has multiple internal threaded grooves on its outer side, and each air inlet connector has an external threaded groove. The air inlet connector is threadedly connected to the aluminum sleeve through the external threaded groove and is located at the corresponding internal threaded groove.

[0007] Each of the spray cores has a ceramic ring at one end.

[0008] The irregularly shaped, six-color main nozzle also includes a nylon sleeve, which is disposed inside the second elastic sleeve, and multiple main nozzles pass through the nylon sleeve.

[0009] The irregularly shaped, six-color main nozzle also includes a positioning pin. The support plate has a positioning hole on its upper part. The positioning pin is located below the bracket and is also inserted into the positioning hole.

[0010] This utility model discloses an irregularly shaped, oscillating, six-color main nozzle. The six nozzle assemblies mounted on the aluminum sleeve include three different nozzle cores: a 3.0mm large-aperture core for roving, a 2.0mm large-aperture core for medium yarn, and a 1.5mm small-aperture core for fine yarn. This allows for precise adjustment of the weft insertion flow rate according to the yarn thickness, avoiding energy waste or insufficient weft insertion. The bracket and support plate are connected via a waist-shaped hole and fixing screws, allowing for a small range of nozzle angle adjustment to meet the needs of different production scenarios. The interconnected design of the air inlet connector, accelerator, main nozzle, and nozzle cores ensures efficient application of compressed airflow to the weft surface. The nylon sleeve and positioning pins further enhance structural stability and adjustment precision. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a three-dimensional perspective view of the irregularly shaped, oscillating, six-color main nozzle of this utility model.

[0013] Figure 2 This is a front view of the irregularly shaped, oscillating, six-color main nozzle of this utility model.

[0014] Figure 3 This is the utility model Figure 2 A cross-sectional view along line AA in the middle.

[0015] Figure 4 This is the utility model Figure 3A magnified view of a portion of point A in the middle.

[0016] Figure 5 This is a three-dimensional view of the aluminum sleeve in the irregularly shaped, six-color main nozzle of this utility model.

[0017] Figure 6 This is a three-dimensional view of the air inlet connector in the irregularly shaped, six-color main nozzle of this utility model.

[0018] Figure 7 This is a three-dimensional perspective view of the bracket in the irregularly shaped, oscillating, six-color main nozzle of this utility model.

[0019] Figure 8 This is a three-dimensional perspective view of the support plate in the irregularly shaped swinging six-color main nozzle of this utility model.

[0020] 1-Aluminum sleeve, 2-Bracket, 3-Fixing bolt, 4-Support plate, 5-First mounting hole, 6-Air inlet connector, 7-Second mounting hole, 8-Injector core, 9-Accelerator, 10-Main nozzle, 11-First elastic sleeve, 12-Second elastic sleeve, 13-Fixing screw, 14-Oval hole, 15-Internal thread groove, 16-External thread groove, 17-Ceramic ring, 18-Nylon sleeve, 19-Positioning pin, 20-Positioning hole. Detailed Implementation

[0021] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0022] Please see Figures 1 to 8This utility model provides an irregularly shaped, oscillating, six-color main nozzle, comprising an aluminum sleeve 1, a bracket 2, two fixing bolts 3, and a support plate 4. The outer side of the aluminum sleeve 1 has multiple first mounting holes 5, each of which is connected to an air inlet connector 6. One end of the aluminum sleeve 1 has multiple second mounting holes 7, and the first mounting holes 5 communicate with the second mounting holes 7. Each mounting hole contains a nozzle core 8, and the other end of each nozzle core 8 is equipped with an accelerator 9. One end of the accelerator 9 is connected to a main nozzle pipe 10. The nozzle core 8 and the accelerator 9... The aluminum sleeve 1 extends out of the other end of the bracket 2. The bracket 2 is provided with a first elastic sleeve 11 and a second elastic sleeve 12. The tightness of the first elastic sleeve 11 and the second elastic sleeve 12 is adjusted by a fixing screw 13. The bracket 2 has a waist-shaped hole 14. The aluminum sleeve 1 is disposed in the first elastic sleeve 11, and multiple main nozzles 10 extend out of the second elastic sleeve 12. The bracket 2 is fixedly connected to the support plate 4 by two fixing bolts 3 and is located above the support plate 4, and one of the fixing bolts 3 is located in the waist-shaped hole 14.

[0023] In this embodiment, the outer side of the aluminum sleeve 1 is provided with multiple first mounting holes 5 and second mounting holes 7, which are respectively connected to the air inlet connector 6 and the nozzle cores 8 of different specifications. Together with the accelerator 9 and the main nozzle 10, they form an independent airflow channel to realize the multi-color weft insertion function. The bracket 2 is connected to the support plate 4 through the waist-shaped hole, which allows the nozzle assembly to be adjusted at a small angle (±2°) to meet the precise requirements of the weft yarn injection angle in different production scenarios. The two fixing bolts 3 cooperate with the waist-shaped hole to ensure structural stability, reduce installation complexity, and improve equipment adaptability.

[0024] Furthermore, the outer side of the aluminum sleeve 1 has a plurality of internal threaded grooves 15, and each of the air inlet connectors 6 has an external threaded groove 16. The air inlet connector 6 is threadedly connected to the aluminum sleeve 1 through the external threaded groove 16 and is located at the corresponding internal threaded groove 15.

[0025] In this embodiment, the threaded connection facilitates quick disassembly and replacement of the air inlet connector 6 of different specifications to adapt to different air pressure requirements, while improving sealing performance and maintenance convenience, and reducing equipment downtime.

[0026] Furthermore, a ceramic ring 17 is provided at one end of each of the spray cores 8.

[0027] In this embodiment, by utilizing the high hardness and low coefficient of friction of ceramic materials, the wear of the nozzle tip by the high-speed airflow is reduced, thereby extending the service life of the nozzle.

[0028] Furthermore, the irregularly shaped oscillating six-color main nozzle also includes a nylon sleeve 18, which is disposed inside the second elastic sleeve 12, and the plurality of main nozzles 10 all penetrate the nylon sleeve 18.

[0029] In this embodiment, the wear resistance of nylon material can prevent wear caused by direct contact between the main nozzle 10 and the bracket 2, while its insulation properties prevent static electricity accumulation, protect the weft yarn from static interference, and ensure a smooth and reliable weft insertion process.

[0030] Furthermore, the irregularly shaped oscillating six-color main nozzle also includes a positioning pin 19, and the support plate 4 has a positioning hole 20 on its upper part. The positioning pin 19 is located below the bracket 2 and is also inserted into the positioning hole 20.

[0031] In this embodiment, the positioning pin 19 can withstand the lateral shear force when the nozzle is working, preventing the bracket 2 from shifting due to the airflow reaction force, thereby maintaining the stability of the spray angle and improving the consistency of weft insertion.

[0032] In this invention, the aluminum sleeve 1 is screwed tightly to the air inlet connector 6 through its outer internal thread groove 15 to ensure the sealed introduction of compressed air; the nozzle core 8 (3.0 large aperture / 2.0 medium aperture / 1.5 small aperture) of the corresponding specification is selected according to the yarn thickness and installed into the second mounting hole 7 of the aluminum sleeve 1, and the ceramic ring 17 is used to reduce wear. Then, the accelerator 9 and the main nozzle 10 are installed in sequence to form an airflow channel; the nylon sleeve 18 is fitted into the second elastic sleeve 12 of the bracket 2, and the main nozzle 10 passes through the nylon sleeve 18 to reduce vibration; the mounting hole of the bracket 2 is aligned with the mounting hole of the support plate 4, the fixing screw 13 is inserted and the tightness is adjusted to achieve ±2° angle fine adjustment of the nozzle assembly; finally, the positioning pin 19 is inserted into the positioning hole 20 of the support plate 4 below the bracket 2 to complete the axial precise positioning and ensure the stability of the spray angle and flow rate during weft insertion.

[0033] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.

Claims

1. An irregularly shaped, oscillating, six-color main nozzle, characterized in that, The device includes an aluminum sleeve, a bracket, two fixing bolts, and a support plate. The outer side of the aluminum sleeve has multiple first mounting holes, each of which is connected to an air inlet connector. One end of the aluminum sleeve has multiple second mounting holes, and the first mounting holes communicate with the second mounting holes. Each mounting hole contains a nozzle, and the other end of each nozzle contains an accelerator. One end of the accelerator contains a main nozzle, and both the nozzle and the accelerator extend beyond the other end of the aluminum sleeve. The bracket has a first and a second elastic sleeve, the tightness of which is adjusted by fixing screws. The bracket has a waist-shaped hole, and the aluminum sleeve is placed inside the first elastic sleeve. The multiple main nozzles extend out of the second elastic sleeve. The bracket is fixedly connected to the support plate by two fixing bolts and is located above the support plate, with one of the fixing bolts located inside the waist-shaped hole.

2. The irregularly shaped, oscillating, six-color main nozzle as described in claim 1, characterized in that, The outer side of the aluminum sleeve has multiple internal threaded grooves, and each air inlet connector has an external threaded groove. The air inlet connector is threadedly connected to the aluminum sleeve through the external threaded groove and is located at the corresponding internal threaded groove.

3. The irregularly shaped, oscillating, six-color main nozzle as described in claim 2, characterized in that, Each of the spray cores has a ceramic ring at one end.

4. The irregularly shaped, oscillating, six-color main nozzle as described in claim 3, characterized in that, The irregularly shaped, oscillating, six-color main nozzle also includes a nylon sleeve, which is disposed inside the second elastic sleeve, and multiple main nozzles pass through the nylon sleeve.

5. The irregularly shaped, oscillating, six-color main nozzle as described in claim 4, characterized in that, The irregularly shaped, oscillating, six-color main nozzle also includes a positioning pin. The support plate has a positioning hole on its upper part. The positioning pin is located below the bracket and is also inserted into the positioning hole.

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