An auxiliary nozzle for a jet loom with an anti-clogging structure

Abstract

This utility model discloses an auxiliary nozzle for an air-jet loom with an anti-clogging structure, belonging to the technical field of auxiliary nozzles for air-jet looms. It includes a nozzle body with multiple first and second air holes on its outer circumferential wall, connected by an air pipe. A fixing frame is welded to the inner circumferential wall of the nozzle body, and a filter plate is positioned above the fixing frame. The outer circumferential wall of the filter plate blocks the first air holes. The filter plate is inverted conical in shape. An elastic component supporting the filter plate is provided between the fixing frame and the filter plate. This utility model, through the coordinated use of the first and second air holes, the air pipe, and the spring, allows gas to enter the air pipe through the first air holes when the filter plate is blocked, and then exit through the second air holes, passing over the filter plate for air intake, thereby ensuring the normal operation of the auxiliary nozzle and improving the stability of nozzle operation.

Description

Technical Field

[0001] This utility model belongs to the technical field of auxiliary nozzles for air-jet looms, and specifically relates to an auxiliary nozzle for air-jet looms with an anti-clogging structure. Background Technology

[0002] The auxiliary nozzle, also known as the relay nozzle, is one of the core components of the weft insertion system of an air-jet loom. It is installed on the reed seat and uses compressed air jets to relay and pull the weft yarn through the shed along the direction of weft yarn travel.

[0003] A search revealed Chinese patent CN219586295U, which discloses a waist-shaped auxiliary nozzle for an air-jet loom. This nozzle temporarily stores dust and impurities filtered by a conical filter cover to prevent them from clogging the filter cover and affecting the normal air intake of the auxiliary nozzle. However, once the support cover is full of dust and impurities, the dust and impurities will still clog the filter cover, preventing gas from passing through and thus affecting the normal use of the auxiliary nozzle. Utility Model Content

[0004] The purpose of this invention is to provide an auxiliary nozzle for an air-jet loom with an anti-clogging structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an auxiliary nozzle for a jet loom with an anti-clogging structure, comprising a nozzle body, wherein a plurality of first air holes and second air holes are provided on the outer circumferential wall of the nozzle body, the first air holes and second air holes are connected by an air pipe, a fixing frame is welded to the inner circumferential wall of the nozzle body, a filter plate is provided above the fixing frame, and the outer circumferential wall of the filter plate blocks the first air holes, the filter plate is inverted conical, and an elastic component supporting the filter plate is provided between the fixing frame and the filter plate.

[0006] As a further embodiment of this utility model, the elastic component is a spring, with both ends of the spring contacting the fixing frame and the filter plate, respectively.

[0007] As a further embodiment of this utility model, the fixing frame and the filter plate are provided with limit grooves on opposite sides, and the spring is located in the limit groove.

[0008] As a further embodiment of this utility model, a support rod is welded to the bottom inner wall of the limiting groove at the top of the fixing frame, and the support rod is located inside the spring, and the height of the support rod is higher than the limit compression height of the spring.

[0009] As a further embodiment of this invention, a protective cover is welded to the outer circumference of the mouthpiece, and the air tube is located inside the protective cover.

[0010] As a further embodiment of this utility model, the top of the nozzle is provided with an installation groove, and a pressure cap is threaded into the installation groove, with the bottom of the pressure cap in contact with the filter plate.

[0011] As a further embodiment of this invention, a hexagonal groove is provided at the top of the inner circumference of the pressure cap for disassembling the pressure cap.

[0012] As a further embodiment of this utility model, a placement groove is provided on the inner circumference of the nozzle body below the first air hole, and a sealing ring is placed in the placement groove, with the sealing ring in contact with the filter plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model, through the combined use of the first air hole, the second air hole, the air tube, and the spring, allows gas to enter the air tube through the first air hole when the filter plate is blocked, and then exit through the second air hole, passing over the filter plate to supply air, thereby enabling the auxiliary nozzle to operate normally and improving the stability of nozzle operation.

[0015] 2. This utility model, by providing a support rod, can provide auxiliary support for the filter plate, protect the spring, and further limit the spring's position, thereby improving the stability of the spring installation.

[0016] 3. This utility model, by providing a protective cover, can protect the gas pipe and seal any leaks at the welded joints of the gas pipe. This secondary sealing ensures the normal transmission of gas and improves the gas delivery efficiency. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present utility model;

[0018] Figure 2 This is an exploded view of the present invention;

[0019] Figure 3 This is a partial cross-sectional view of the present invention;

[0020] Figure 4 This is an enlarged view of part A of this utility model.

[0021] In the diagram: 1. Nozzle body; 2. Protective cover; 3. Pressure cap; 4. Hexagonal groove; 5. Filter plate; 6. Spring; 7. Air tube; 8. Support rod; 9. Fixing bracket; 10. Mounting groove; 11. First air hole; 12. Second air hole; 13. Limiting groove; 14. Placement groove; 15. Sealing ring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-4 This utility model provides an auxiliary nozzle for a jet loom with an anti-clogging structure, including a nozzle body 1. The outer circumferential wall of the nozzle body 1 is provided with a plurality of first air holes 11 and second air holes 12. The first air holes 11 and second air holes 12 are connected by an air pipe 7. A fixing frame 9 is welded to the inner circumferential wall of the nozzle body 1. A filter plate 5 is provided above the fixing frame 9, and the outer circumferential wall of the filter plate 5 blocks the first air holes 11. The second air holes 12 are located below the filter plate 5. The filter plate 5 is inverted conical, so that all dust and impurities are located inside the filter plate 5, thus making it difficult to clog the first air holes 11. An elastic component supporting the filter plate 5 is provided between the fixing frame 9 and the filter plate 5. The elastic component can be a spring 6 and elastic rubber, preferably a spring 6. The two ends of the spring 6 are in contact with the fixing frame 9 and the filter plate 5 respectively.

[0024] During normal operation, the filter plate 5 is lifted by the spring 6, which can counteract the impact force of the gas and prevent the filter plate 5 from shifting when it is not clogged.

[0025] When the filter plate 5 is blocked, the impact force of the gas will be greater than the elastic force of the filter plate 5 at the top of the spring 6, thus blowing the filter plate 5 downward, thereby exposing the first air hole 11, allowing the gas to enter the air pipe 7 through the first air hole 11, and then be discharged from the second air hole 12, passing over the filter plate 5, to supply air, thereby enabling the auxiliary nozzle to operate normally and improving the stability of the nozzle operation.

[0026] In this design, the fixing frame 9 and the filter plate 5 are provided with limiting grooves 13 on opposite sides, and the spring 6 is located in the limiting groove 13 to limit the spring 6, so that the spring 6 will not easily change its position and improve the stability of the spring 6 installation.

[0027] Among them, the bottom inner wall of the limiting groove 13 at the top of the fixing frame 9 is welded with a support rod 8, and the support rod 8 is located inside the spring 6. The height of the support rod 8 is higher than the limit compression height of the spring 6. The support rod 8 can provide auxiliary support for the filter plate 5, protect the spring 6, and further limit the spring 6, thereby further improving the stability of the spring 6 installation.

[0028] The outer circumferential wall of the nozzle 1 is welded with a protective cover 2, and the air pipe 7 is located inside the protective cover 2. The protective cover 2 protects the air pipe 7 and can seal the leakage at the weld of the air pipe 7. The secondary seal can ensure the normal transmission of gas and improve the gas delivery effect.

[0029] The nozzle body 1 has a mounting groove 10 at its top, and a pressure cap 3 is threaded into the mounting groove 10. The bottom of the pressure cap 3 contacts the filter plate 5, pressing the filter plate 5 downwards, thereby causing the spring 6 to contract and exert elastic force, limiting the movement of the filter plate 5. This allows the spring 6 to continuously provide elastic force to the filter plate 5, preventing displacement of the filter plate 5 during normal operation. The top of the inner circumference of the pressure cap 3 has a hexagonal groove 4 for disassembling the pressure cap 3. The pressure cap 3 can be disassembled using an external hex wrench, allowing the filter plate 5 to be disassembled for cleaning.

[0030] The nozzle body 1 has a placement groove 14 located below the first air hole 11 on its inner circumferential wall. A sealing ring 15 is placed in the placement groove 14 and is in contact with the filter plate 5. The sealing ring 15 seals the filter plate 5 and the inner circumferential wall of the nozzle body 1, preventing gas from flowing through the gap between the filter plate 5 and the nozzle body 1. This prevents dust and impurities from being blown into the gap and improves the service life of the nozzle.

[0031] The working principle of this utility model:

[0032] S1: Place the spring 6 in the limiting groove 13 at the top of the fixing frame 9, and make the support rod 8 located in the spring 6. Then, put the filter plate 5 into the mouthpiece 1 and put the pressure cap 3 into the mouthpiece 1 so that the filter plate 5 contacts the pressure cap 3. Use an Allen wrench to insert into the hexagonal groove 4 to install the pressure cap 3, thereby pressing the filter plate 5 downward, so that the spring 6 contracts and has elastic force, limiting the movement of the filter plate 5, so that the spring 6 can continuously give the filter plate 5 an elastic force, so that the filter plate 5 will not be displaced during normal operation.

[0033] S2: When the nozzle is running normally, the filter plate 5 will be lifted by the spring 6, which can counteract the impact force of the gas and prevent the filter plate 5 from shifting when it is not blocked.

[0034] S3: When the filter plate 5 is blocked, the impact force of the gas will be greater than the elastic force of the filter plate 5 at the top of the spring 6, thus blowing the filter plate 5 downward, thereby exposing the first air hole 11, so that the gas can enter the air pipe 7 through the first air hole 11, and then be discharged from the second air hole 12, passing over the filter plate 5, and supplying air, thereby enabling the auxiliary nozzle to operate normally and improving the stability of the nozzle operation.

[0035] Finally, the following points should be noted: In the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change.

[0036] The electronic components and modules used in this utility model can all be parts that are commonly used in the market and can achieve the specific functions in this case. The specific models and sizes can be selected and adjusted according to actual needs.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An auxiliary nozzle for air-jet looms with anti-clogging structure, comprising a nozzle body (1), characterized in that: The outer circumferential wall of the mouthpiece (1) is provided with a plurality of first air holes (11) and second air holes (12). The first air holes (11) and second air holes (12) are connected by an air pipe (7). A fixing frame (9) is fixedly connected to the inner circumferential wall of the mouthpiece (1). A filter plate (5) is provided above the fixing frame (9). The outer circumferential wall of the filter plate (5) blocks the first air holes (11). The filter plate (5) is inverted conical. An elastic component supporting the filter plate (5) is provided between the fixing frame (9) and the filter plate (5).

2. The auxiliary nozzle of the air jet loom having the anti-blocking structure according to claim 1, wherein: The elastic component is a spring (6), and the two ends of the spring (6) are in contact with the fixing frame (9) and the filter plate (5) respectively.

3. The auxiliary nozzle of the air jet loom having the anti-blocking structure according to claim 2, characterized in that: The fixing frame (9) and the filter plate (5) are provided with limiting grooves (13) on opposite sides, and the spring (6) is located in the limiting groove (13).

4. The auxiliary nozzle of the air jet loom having the anti-blocking structure according to claim 3, wherein: The bottom inner wall of the limiting groove (13) at the top of the fixed frame (9) is fixedly connected to a support rod (8), and the support rod (8) is located inside the spring (6), and the height of the support rod (8) is higher than the limit compression height of the spring (6).

5. The auxiliary nozzle for a jet loom with an anti-clogging structure according to claim 1, characterized in that: The outer circumferential wall of the mouthpiece (1) is fixedly connected to a protective cover (2), and the air tube (7) is located inside the protective cover (2).

6. The auxiliary nozzle of the air jet loom having the anti-clogging structure according to claim 1, wherein: The top of the nozzle (1) is provided with an installation groove (10), and a pressure cap (3) is threadedly connected inside the installation groove (10), and the bottom of the pressure cap (3) is in contact with the filter plate (5).

7. The auxiliary nozzle of the air jet loom having the anti-blocking structure according to claim 6, characterized in that: The top of the inner circumference of the pressure cap (3) is provided with a hexagonal groove (4) for disassembling the pressure cap (3).

8. The auxiliary nozzle of the air jet loom having the anti-clogging structure according to claim 1, wherein: The inner circumference of the mouthpiece (1) is provided with a placement groove (14) below the first air hole (11). A sealing ring (15) is placed in the placement groove (14) and the sealing ring (15) is in contact with the filter plate (5).

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