Wear resistant oscillating dual color main nozzle

Abstract

This utility model relates to the technical field of weft insertion devices for air-jet looms, specifically to a wear-resistant, oscillating, two-color main nozzle. This design utilizes the cooperation between a waist-shaped hole and a mounting hole to achieve flexible adjustment of the nozzle angle within a small range, meeting diverse needs in actual production. A nozzle core is installed at the air inlet end of the main nozzle assembly, and a ceramic plate is added at the nozzle core, significantly reducing friction between the yarn and the nozzle nozzle during high-speed oscillation, preventing nozzle wear and groove marks, thus ensuring weft insertion accuracy and extending nozzle lifespan. A connecting cavity and multiple sets of connecting holes are designed within the sub-support to ensure efficient communication between the air inlet connector, nozzle core, and main nozzle. The positioning pin on the support plate cooperates with the positioning holes of the main support, further enhancing structural stability. This design, through dual improvements in wear resistance and adjustable angle, reduces downtime for maintenance, lowers production costs, and provides greater flexibility for optimizing the weaving process.

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 wear-resistant oscillating dual-color main nozzle. Background Technology

[0002] The weft insertion device of an air-jet loom uses compressed air jets to pull the weft yarn, enabling rapid transfer of the weft yarn between the sheds and thus completing the weaving process. This technology is known for its high production speed and high labor productivity, and is especially suitable for the production of plain weave, textured fabrics, and coarse and fine high-density fabrics. Its efficient and stable weft insertion performance has brought significant economic benefits to the textile industry and has become an indispensable and important component of modern textile machinery.

[0003] However, in the existing weft insertion devices of air-jet looms, the main nozzle, as a key component, often suffers severe wear at the nozzle opening due to frequent friction between the yarn and the main nozzle during high-speed oscillation. This wear can even result in grooves, affecting weft insertion accuracy and reducing the overall service life of the nozzle. It also increases the number of downtime maintenance and costs during production. Furthermore, the angle adjustment of traditional nozzles is inconvenient and difficult to flexibly adjust according to actual production needs, limiting the optimization space of the weaving process. Utility Model Content

[0004] The purpose of this invention is to provide a wear-resistant oscillating dual-color main nozzle, which aims to solve the technical problems in the prior art where, as a key component, frequent friction between the yarn and the main nozzle during high-speed oscillation often leads to severe wear at the nozzle orifice, even resulting in grooves. This not only affects the accuracy of weft insertion but also reduces the overall service life of the nozzle, increasing the number of downtime maintenance and costs during production. In addition, the angle adjustment of traditional nozzles is inconvenient and difficult to flexibly adjust according to actual production needs, limiting the optimization space of the weaving process.

[0005] To achieve the above objectives, this utility model employs a wear-resistant oscillating dual-color main nozzle, comprising a main bracket and a support plate. A secondary bracket is provided at one end of the main bracket. Both the main bracket and the secondary bracket have multiple oblong holes. The support plate has multiple mounting holes. Two nozzle assemblies are provided on the main bracket and the secondary bracket. Both the main bracket and the secondary bracket are mounted on the upper part of the support plate by multiple fixing screws, and the multiple fixing screws are located in the corresponding oblong holes and mounting holes.

[0006] The nozzle assembly includes a nozzle core, an air inlet connector, and a main nozzle pipe. The nozzle core is disposed at the air inlet end of the main nozzle pipe, the air inlet connector is disposed on the outside of the sub-support, and the main nozzle pipe is disposed on the main support and the sub-support.

[0007] The main nozzle has a ceramic plate at its spray end.

[0008] The sub-bracket has two communicating cavities. One end of each communicating cavity has a first communicating hole, the other end of each communicating cavity has a second communicating hole, and one side of each communicating cavity has a third communicating hole.

[0009] The air inlet of the main nozzle is located in the corresponding first connecting hole, the nozzle core is located in the corresponding second connecting hole, and the air inlet connector is located in the corresponding third connecting hole.

[0010] The two air inlet connectors of the two nozzle assemblies are symmetrically arranged on the two outer sides of the sub-bracket.

[0011] The upper end face of the support plate is provided with a positioning pin, and the main bracket is also provided with a positioning hole, and the positioning pin is inserted into the positioning hole.

[0012] This utility model discloses a wear-resistant oscillating dual-color main nozzle. The main support and sub-support are fixed to the upper part of the support plate by multiple fixing screws. The nozzle angle is flexibly adjusted within a small range using the cooperation of the oblong hole and the mounting hole, meeting diverse needs in actual production. The nozzle assembly has a spray core at the air inlet end of the main nozzle pipe, and a ceramic plate is added at the spray core, significantly reducing friction between the yarn and the nozzle nozzle during high-speed oscillation, avoiding nozzle wear and grooves, thus ensuring weft insertion accuracy and extending nozzle life. The sub-support has a connecting cavity and multiple sets of connecting holes to ensure efficient communication between the air inlet connector, the spray core, and the main nozzle pipe. Two air inlets are symmetrically distributed on both sides of the sub-support, optimizing the airflow path. The positioning pin on the support plate cooperates with the positioning hole of the main support plate, further improving structural stability. This design, through dual improvements of wear resistance and adjustable angle, reduces downtime maintenance frequency, lowers production costs, and provides greater flexibility for optimizing weaving processes. Attached Figure Description

[0013] 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.

[0014] Figure 1 This is a three-dimensional perspective view of the wear-resistant oscillating dual-color main nozzle of this utility model.

[0015] Figure 2This is a front view of the wear-resistant oscillating dual-color main nozzle of this utility model.

[0016] Figure 3 This is the utility model Figure 2 A cross-sectional view along line AA in the middle.

[0017] Figure 4 This is the utility model Figure 2 A cross-sectional view along the BB line.

[0018] Figure 5 This is the utility model Figure 4 A magnified view of a section at point C.

[0019] Figure 6 This is a schematic diagram of the main bracket and the auxiliary bracket in the wear-resistant oscillating dual-color main nozzle of this utility model.

[0020] Figure 7 This is a schematic diagram of the support plate in the wear-resistant oscillating dual-color main nozzle of this utility model.

[0021] 1-Main bracket, 2-Support plate, 3-Sub-bracket, 4-Oval hole, 5-Mounting hole, 6-Fixing screw, 7-Injector core, 8-Air inlet connector, 9-Main nozzle, 10-Ceramic disc, 11-Connecting cavity, 12-First connecting hole, 13-Second connecting hole, 14-Third connecting hole, 15-Positioning pin, 16-Positioning hole. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1 to 7 This utility model provides a wear-resistant oscillating dual-color main nozzle, including a main bracket 1 and a support plate 2. A secondary bracket 3 is provided at one end of the main bracket 1. Both the main bracket 1 and the secondary bracket 3 have multiple oblong holes 4. The support plate 2 has multiple mounting holes 5. Two nozzle assemblies are provided on the main bracket 1 and the secondary bracket 3. Both the main bracket 1 and the secondary bracket 3 are set above the support plate 2 by multiple fixing screws 6, and the multiple fixing screws 6 are located in the corresponding oblong holes 4 and mounting holes 5.

[0024] In this embodiment, the main bracket 1 and the auxiliary bracket 3 can be adjusted at a small angle when fixed above the support plate 2 by the cooperation of the waist-shaped hole 4 and the mounting hole 5, thereby realizing the flexible adjustment of the nozzle angle. This adjustment method is simple and easy to implement, and can quickly adjust the nozzle angle according to actual production needs, optimize the weaving process, and improve production efficiency and product quality.

[0025] Furthermore, the nozzle assembly includes a nozzle core 7, an air inlet connector 8, and a main nozzle pipe 9. The nozzle core 7 is disposed at the air inlet end of the main nozzle pipe 9, the air inlet connector 8 is disposed on the outside of the sub-support 3, and the main nozzle pipe 9 is disposed on the main support 1 and the sub-support 3.

[0026] In this embodiment, by integrating the nozzle core 7, the air inlet connector 8, and the main nozzle 9 into the nozzle assembly, the structure is compact and the functions are complete. The nozzle core 7 is located at the air inlet end of the main nozzle 9, ensuring effective airflow introduction and compression. The air inlet connector 8 is located outside the sub-support 3, facilitating airflow access. The main nozzle 9 is responsible for fully applying the compressed airflow to the weft surface, realizing the acceleration and transport of the weft. This integrated design improves the working efficiency and stability of the nozzle.

[0027] Furthermore, the main nozzle 9 is provided with a ceramic plate 10 at its injection end.

[0028] In this embodiment, by adding the ceramic plate 10 to the main nozzle 9, the friction between the yarn and the nozzle of the main nozzle 9 during high-speed oscillation is effectively reduced. The ceramic material has high hardness and wear resistance, which can resist the frequent friction of the yarn and avoid nozzle wear and grooves. This improvement significantly increases the service life of the nozzle, reduces the decrease in weft insertion accuracy and the number of downtime maintenance caused by nozzle wear, and reduces production costs.

[0029] Furthermore, the sub-bracket 3 has two communicating cavities 11, one end of the communicating cavity 11 has a first communicating hole 12, the other end of the communicating cavity 11 has a second communicating hole 13, and one side of the communicating cavity 11 has a third communicating hole 14.

[0030] In this embodiment, the connecting cavity 11 and multiple sets of connecting holes designed within the sub-support 3 achieve efficient communication between the air inlet connector 8, the nozzle core 7, and the main nozzle 9. This design optimizes the airflow path, ensuring that the compressed airflow can smoothly enter the main nozzle 9 and act on the weft surface, improving weft insertion efficiency and stability. Simultaneously, the design of multiple sets of connecting holes also increases the flexibility and maintainability of the structure.

[0031] Furthermore, the air inlet end of the main nozzle 9 is located in the corresponding first connecting hole 12, the nozzle core 7 is located in the corresponding second connecting hole 13, and the air inlet connector 8 is located in the corresponding third connecting hole 14.

[0032] In this embodiment, the main nozzle 9, the nozzle core 7, and the air inlet connector 8 are precisely positioned within their respective connecting holes, ensuring a tight fit and efficient operation between the components. This positioning method not only improves the structural stability of the nozzle but also optimizes airflow distribution and transmission efficiency, further enhancing weft insertion accuracy and product quality.

[0033] Furthermore, the two air inlet connectors 8 of the two nozzle assemblies are symmetrically arranged on the two outer sides of the sub-bracket 3.

[0034] In this embodiment, by symmetrically arranging the air inlet connectors 8 of the two nozzle assemblies on both outer sides of the sub-support 3, this layout is not only aesthetically pleasing but also optimizes the airflow entry path. The symmetrical arrangement allows the airflow to enter the two nozzle assemblies more evenly, improving the synchronization and stability of weft insertion. Simultaneously, this layout also facilitates equipment maintenance and repair.

[0035] Furthermore, the upper end face of the support plate 2 is provided with a positioning pin 15, and the main bracket 1 is also provided with a positioning hole 16, and the positioning pin 15 is inserted into the positioning hole 16.

[0036] In this embodiment, the connection stability between the main bracket 1 and the support plate 2 is further improved by the insertion and engagement of the positioning pin 15 and the positioning hole 16. This design effectively prevents the nozzle from shaking and deviating during operation, ensuring the accuracy and stability of weft insertion.

[0037] In this invention, the support plate 2 is first securely installed at the designated position on the air-jet loom. Then, the positioning pin 15 is precisely aligned with the positioning hole 16 on the main bracket 1 to ensure structural stability. Next, the fixing screw 6 passes through the waist-shaped hole 4 on the main bracket 1 and the auxiliary bracket 3 and is screwed into the mounting hole 5 on the support plate 2 to achieve a tight connection between the bracket and the support plate 2. The design of the waist-shaped hole 4 allows for small-angle adjustment according to actual needs to optimize the nozzle angle. The airflow enters through the air inlet 8 located on the outside of the auxiliary bracket 3, and is efficiently transmitted to the nozzle core 7 inside the main nozzle 9 installed on the main bracket 1 and the auxiliary bracket 3 via the connecting cavity 11 and the first, second, and third connecting holes 14 inside. Finally, the airflow is ejected from the main nozzle 9 to drive the weft yarn. During this process, the ceramic plate 10 at the nozzle core 7 effectively reduces the friction between the yarn and the main nozzle 9, protects the nozzle from wear, and ensures the accuracy and efficiency of weft insertion.

[0038] 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. A wear-resistant oscillating dual-color main nozzle, characterized in that, The device includes a main bracket and a support plate. A secondary bracket is provided at one end of the main bracket. Both the main bracket and the secondary bracket have multiple oblong holes. The support plate has multiple mounting holes. Two nozzle assemblies are provided on the main bracket and the secondary bracket. Both the main bracket and the secondary bracket are mounted on the upper part of the support plate by multiple fixing screws, and the multiple fixing screws are located in the corresponding oblong holes and mounting holes.

2. The wear-resistant oscillating dual-color main nozzle as described in claim 1, characterized in that, The nozzle assembly includes a nozzle core, an air inlet connector, and a main nozzle pipe. The nozzle core is disposed at the air inlet end of the main nozzle pipe, the air inlet connector is disposed on the outside of the sub-support, and the main nozzle pipe is disposed on the main support and the sub-support.

3. The wear-resistant oscillating dual-color main nozzle as described in claim 2, characterized in that, The main nozzle has a ceramic plate at its spray end.

4. The wear-resistant oscillating dual-color main nozzle as described in claim 3, characterized in that, The sub-bracket has two communicating cavities. One end of each communicating cavity has a first communicating hole, the other end of each communicating cavity has a second communicating hole, and one side of each communicating cavity has a third communicating hole.

5. The wear-resistant oscillating dual-color main nozzle as described in claim 4, characterized in that, The air inlet of the main nozzle is located in the corresponding first connecting hole, the nozzle core is located in the corresponding second connecting hole, and the air inlet connector is located in the corresponding third connecting hole.

6. The wear-resistant oscillating dual-color main nozzle as described in claim 5, characterized in that, The two air inlet connectors of the two nozzle assemblies are symmetrically arranged on the two outer sides of the sub-bracket.

7. The wear-resistant oscillating dual-color main nozzle as described in claim 6, characterized in that, The upper end face of the support plate is provided with a positioning pin, and the main bracket is also provided with a positioning hole, and the positioning pin is inserted into the positioning hole.

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