Rotary air nozzle

Abstract

The utility model discloses a rotary air nozzle, which comprises a connector with an air channel and an air injection cylinder sleeved outside the connector and capable of rotating relative to the connector, a gap is formed between the front end of the connector and the bottom of an inner cavity of the air injection cylinder, and an air injection hole communicated with the gap is arranged at the front end of the air injection cylinder. An inlet and an outlet of the gas spraying hole are not located on the same axis, so that the gas spraying hole does not spray gas horizontally and directly, a slender spraying pipe can be directly replaced, the function of the slender spraying pipe is achieved, installation of the spraying pipe can be reduced, parts are fewer, cost is lower, the structure is simpler, and the overall length of the gas spraying pipe can be reduced. And the occupied space is reduced. After entering along the air channel of the connector, high-pressure air can drive the air spraying barrel to rotate relative to the connector, then 360-degree rotation of the air spraying holes of the air spraying barrel can be achieved so that large-area air spraying can be achieved, broken cotton fibers on woven cloth can be more effectively cleaned, the cleaning area is large, and the cleaning efficiency is high.

Description

Technical field:

[0001] The utility model relates to the technical field of textile machinery, in particular to a rotary air jet nozzle. Background technology:

[0002] During the weaving process, textile machinery currently uses air nozzles to remove lint from the fabric. However, existing air nozzles use a flexible hose as the nozzle tip. As the air is ejected, the hose swings under the influence of air pressure, thereby removing the lint. However, these nozzles oscillate irregularly during use, with the swing amplitude varying significantly with changes in air pressure. Consequently, the degree of cleanliness and range of cleaning are significantly affected by air pressure, hampering work efficiency.

[0003] The inventor has proposed a Chinese utility model patent with authorization announcement number CN205934528U, which discloses an air nozzle, including a nozzle and a connector. The nozzle is provided at one end of the connector and is in communication with the connector. The nozzle includes a horizontal portion and a bent portion, and the bent portion is fixed at the front end of the horizontal portion. A nozzle is provided at one end of the connector, and the nozzle includes a horizontal portion and a bent portion. When gas flows from the connector to the nozzle, after passing through the bent portion, the nozzle swings under the action of air pressure, thereby increasing the effective area of ​​the gas and facilitating the cleaning of lint on the fabric. At the same time, the horizontal portion and the bent portion are fixed, so that the swing amplitude of the nozzle is not affected by the air pressure, the swing amplitude is stable, and it is convenient to use and improves the cleaning efficiency, thereby solving the above-mentioned technical problems.

[0004] However, the inventors discovered some problems during the production and use of the above-mentioned air nozzle: first, a nozzle needs to be added and installed on the connecting head, which has relatively more parts, relatively high cost, and requires installation; second, the nozzle is long and takes up a large space.

[0005] In this regard, the inventors have further developed and improved the above-mentioned air nozzle, and further proposed the following technical solutions. Utility model content:

[0006] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a rotary air jet nozzle.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solution: the rotary air nozzle includes a connector having an air channel and an air nozzle that is sleeved on the outside of the connector and can rotate relative to the connector, a gap is formed between the front end of the connector and the bottom of the inner cavity of the air nozzle, and an air jet hole connected to the gap is provided at the front end of the air nozzle, and the inlet and outlet of the air jet hole are not on the same axis.

[0008] Furthermore, in the above technical solution, a bearing is fixedly sleeved around the outer periphery of the connector, the jet sleeve is fixed outside the bearing, and the jet cover is covered on the outside of the connector.

[0009] Furthermore, in the above technical solution, the rear end of the jet cylinder is also connected to a limiting sleeve, which is placed on the rear side of the bearing and forms a rotatable gap with the outer surface of the connector. The inner diameter of the limiting sleeve is smaller than the outer diameter of the bearing.

[0010] Furthermore, in the above technical solution, the front end of the limiting sleeve has a first threaded section, the inner side of the rear end of the air jet cylinder is provided with an internal thread, and the first threaded section is spirally fixed to the internal thread.

[0011] Furthermore, in the above technical solution, a sealing ring is further provided between the limiting sleeve and the rear end of the jet cylinder.

[0012] Furthermore, in the above technical solution, the air jet hole is an inclined straight hole, or the air jet hole is an inclined Z-shaped hole.

[0013] Furthermore, in the above technical solution, the number of bearings is at least two, and two adjacent bearings are separated by a spacer ring, which is fixedly sleeved on the periphery of the connector, and the two ends of the spacer ring are respectively in contact with the inner circles of the two adjacent bearings.

[0014] Furthermore, in the above technical solution, the outer diameter of the spacer ring is smaller than the outer diameter of the bearing.

[0015] Furthermore, in the above technical solution, a stepped groove is provided on the periphery of the front end of the connector, and the bearings and spacer rings are both sleeved and fixed in the stepped groove, wherein the inner circle of the bearing located at the rear end contacts the vertical groove wall of the stepped groove, and an anti-slip ring is also sleeved and fixed at the front end of the stepped groove, and the rear end face of the anti-slip ring contacts the inner circle of the front end bearing to confine all bearings in the stepped groove.

[0016] Furthermore, in the above technical solution, the rear end of the connector is further provided with a hexagonal convex ring and a second threaded section located at the rear side of the hexagonal convex ring.

[0017] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: the present invention directly sets an air jet hole at the front end of the air jet tube, and the inlet and outlet of the air jet hole are not on the same axis, so that the air jet hole does not directly spray gas horizontally when spraying gas. It can directly replace the slender nozzle and realize the function of the slender nozzle, which can reduce the installation of the nozzle, make the parts less, lower the cost, and have a simpler structure. It can also reduce the overall length of the utility model, reduce the space it occupies, make it more convenient to use, and be more conducive to meeting the use requirements. During the specific operation of the utility model, high-pressure gas enters along the air channel of the connecting head, first enters the gap formed between the front end of the connecting head and the bottom of the inner cavity of the jet tube, and finally is ejected through the jet hole. In this process, since the jet tube can rotate relative to the connecting head, when the high-pressure gas passes through the gap and enters the jet hole whose inlet and outlet are not on the same axis, it can drive the jet tube to rotate relative to the connecting head, thereby enabling the jet hole of the jet tube to achieve 360-degree rotation to spray air over a large area, thereby more effectively cleaning the broken cotton wool on the fabric, and the cleaning area is large and the cleaning efficiency is high to meet production needs. Description of the drawings:

[0018] Figure 1 It is a three-dimensional diagram of the utility model;

[0019] Figure 2 It is a three-dimensional diagram of the present invention from another perspective;

[0020] Figure 3 It is a cross-sectional view of the utility model;

[0021] Figure 4 It is the internal structure diagram of the utility model;

[0022] Figure 5 It is a three-dimensional exploded view of the present utility model. Specific implementation method:

[0023] The present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0024] See Figure 1-5The figure shows a rotary air nozzle, which includes a connector 1 having an air passage 10 and an air nozzle 2 that is mounted on the outside of the connector 1 and rotatable relative to the connector 1. A gap 20 is formed between the front end of the connector 1 and the bottom of the inner cavity of the air nozzle 2. The front end of the air nozzle 2 is provided with an air jet hole 21 that communicates with the gap 20. The inlet 211 and outlet 212 of the air jet hole 21 are not coaxial. The present invention directly provides the air jet hole 21 at the front end of the air nozzle 2. The inlet 211 and outlet 212 of the air jet hole 21 are not coaxial, so that the air jet hole 21 does not eject gas horizontally and directly. The present invention can directly replace the slender nozzle, performing the function of the slender nozzle, reducing the number of parts required for nozzle installation, resulting in a lower cost and a simpler structure. The overall length of the present invention can also be reduced, which reduces the space occupied, making it more convenient to use and more conducive to meeting the requirements of use. During the specific operation of the present invention, high-pressure gas enters along the air channel 10 of the connector 1, first enters the gap 20 formed between the front end of the connector 1 and the bottom of the inner cavity of the air jet cylinder 2, and finally is ejected through the air jet hole 21. During this process, since the air jet cylinder 2 can rotate relative to the connector 1, so that when the high-pressure gas passes through the gap 20 and enters the air jet hole 21 where the inlet 211 and the outlet 212 are not on the same axis, it can drive the air jet cylinder 2 to rotate relative to the connector 1, thereby enabling the air jet hole 21 of the air jet cylinder 2 to achieve 360-degree rotation to spray air over a large area, thereby more effectively cleaning the broken cotton wool on the fabric, and the cleaning area is large and the cleaning efficiency is high to meet production needs.

[0025] The specific assembly structure of the air jet cylinder 2 and the connector 1 is as follows:

[0026] The jet tube 2 is rotatably mounted on the connector 1 via a bearing 11, wherein the connector 1 is fixedly sleeved with a bearing 11, the jet tube 2 is sleeved and fixed outside the bearing 11, and the jet tube 2 covers the outside of the connector 1, and the assembly mechanism is extremely stable.

[0027] In order to more effectively prevent the jet tube 2 from falling off, the following design is also made: the rear end of the jet tube 2 is also connected to a limiting sleeve 3, which is placed on the rear side of the bearing 11 and forms a rotatable gap with the outer surface of the connector 1. The inner diameter of the limiting sleeve 3 is smaller than the outer diameter of the bearing 11, and the limiting sleeve 3 can cooperate with the bearing 11 to limit the position of the jet tube 2, which can effectively prevent the jet tube 2 from falling off the connector 1; at the same time, the limiting sleeve 3 also plays a certain role in blocking gas, that is, a small amount of high-pressure gas is ejected in the reverse direction along the gap between the limiting sleeve 3 and the connector 1 after contacting the bottom of the inner cavity of the jet tube 2. Since a rotatable gap is formed between the limiting sleeve 3 and the outer surface of the connector 1, it can block the high-pressure gas.

[0028] Among them, the front end of the limiting sleeve 3 has a first thread section 31, and the inner side of the rear end of the jet cylinder 2 is provided with an internal thread 22. The first thread section 31 is spirally fixed to the internal thread 22, and its assembly structure is extremely stable and extremely convenient to assemble.

[0029] A sealing ring 32 is further provided between the limiting sleeve 3 and the rear end of the air jet cylinder 2 to achieve a sealing assembly effect.

[0030] The jet hole 21 is an inclined straight hole, or an inclined Z-shaped hole. As an effective embodiment, the solution adopted in this embodiment is: the jet hole 21 is an inclined straight hole, and the outlet 212 of the jet hole 21 is not at the center of the front end surface of the jet tube 2, but at a non-center position.

[0031] In order to improve the stability of the jet tube 2 on the connector 1 and to ensure smooth rotation, the following design is made: there are at least two bearings 11, and two adjacent bearings 11 are separated by a spacer ring 4. The spacer ring 4 is fixedly sleeved on the periphery of the connector 1, and the two ends of the spacer ring 4 are respectively in contact with the inner circles of the two adjacent bearings 11, so that the bearings 11 are stably installed on the connector 1, and the jet tube 2 can be installed on the connector 1 more stably and rotate smoothly.

[0032] The outer diameter of the spacer ring 4 is smaller than the outer diameter of the bearing 11. A stepped groove 12 is provided on the outer periphery of the front end of the connector 1. The bearing 11 and the spacer ring 4 are both sleeved and fixed in the stepped groove 12, wherein the inner circle of the bearing 11 at the rear end contacts the vertical groove wall of the stepped groove 12. An anti-slip ring 5 is also sleeved and fixed at the front end of the stepped groove 12, and the rear end face of the anti-slip ring 5 contacts the inner circle of the front end bearing 11 to confine all bearings 11 in the stepped groove 12, thereby ensuring that all bearings 11 are stably installed on the connector 1. The anti-slip ring 5 can be fastened to the stepped groove 12 by interference fit, and the anti-slip ring 5 can be fastened to the stepped groove 12 by screw assembly.

[0033] The rear end of the connector 1 is also provided with a hexagonal convex ring 13 and a second threaded section 14 located on the rear side of the hexagonal convex ring 13. The rear end of the connector 1 is connected to a hard air pipe. The fastening nut sleeved on the hard air pipe is spirally fixed to the second threaded section 14, and the hexagonal convex ring 13 can be limited by a tool when it needs to be disassembled later, so that the fastening nut can be better disassembled.

[0034] In summary, the present invention directly sets an air jet hole 21 at the front end of the air jet tube 2. The inlet 211 and the outlet 212 of the air jet hole 21 are not on the same axis, so that the air jet hole 21 does not directly spray gas horizontally when ejecting gas. It can directly replace the slender nozzle and realize the function of the slender nozzle, which can reduce the installation of the nozzle, make the parts less, lower the cost, and have a simpler structure. It can also reduce the overall length of the utility model, reduce the space it occupies, make it more convenient to use, and be more conducive to meeting the use requirements. During the specific operation of the present invention, high-pressure gas enters along the air channel 10 of the connector 1, first enters the gap 20 formed between the front end of the connector 1 and the bottom of the inner cavity of the air jet cylinder 2, and finally is ejected through the air jet hole 21. During this process, since the air jet cylinder 2 can rotate relative to the connector 1, so that when the high-pressure gas passes through the gap 20 and enters the air jet hole 21 where the inlet 211 and the outlet 212 are not on the same axis, it can drive the air jet cylinder 2 to rotate relative to the connector 1, thereby enabling the air jet hole 21 of the air jet cylinder 2 to achieve 360-degree rotation to spray air over a large area, thereby more effectively cleaning the broken cotton wool on the fabric, and the cleaning area is large and the cleaning efficiency is high to meet production needs.

[0035] Of course, the above description is only a specific embodiment of the present invention and is not intended to limit the scope of implementation of the present invention. Any equivalent changes or modifications made based on the structure, features and principles described in the scope of the patent application of the present invention should be included in the scope of the patent application of the present invention.

Claims

1. Rotary air nozzle, characterized by: The invention comprises a connector (1) having an air passage (10) and a jet cylinder (2) which is sleeved on the outside of the connector (1) and rotatable relative to the connector (1); a gap (20) is formed between the front end of the connector (1) and the bottom of the inner cavity of the jet cylinder (2); and a jet hole (21) communicating with the gap (20) is provided at the front end of the jet cylinder (2); an inlet (211) and an outlet (212) of the jet hole (21) are not on the same axis.

2. The rotary air nozzle according to claim 1, characterized in that: The outer periphery of the connector (1) is fixedly sleeved with a bearing (11), the jet tube (2) is sleeved and fixed outside the bearing (11), and the jet tube (2) is covered outside the connector (1).

3. The rotary air nozzle according to claim 2, characterized in that: The rear end of the jet cylinder (2) is also connected to a limiting sleeve (3), which is placed on the rear side of the bearing (11) and forms a rotatable gap with the outer surface of the connector (1). The inner diameter of the limiting sleeve (3) is smaller than the outer diameter of the bearing (11).

4. The rotary air nozzle according to claim 3, characterized in that: The front end of the limiting sleeve (3) has a first thread section (31), and the inner side of the rear end of the jet cylinder (2) is provided with an internal thread (22), and the first thread section (31) is screw-fixed with the internal thread (22).

5. The rotary air nozzle according to claim 3, characterized in that: A sealing ring (32) is also provided between the limiting sleeve (3) and the rear end of the jet cylinder (2).

6. The rotary air nozzle according to claim 2, characterized in that: The air jet hole (21) is an inclined straight hole, or the air jet hole (21) is an inclined Z-shaped hole.

7. The rotary air nozzle according to any one of claims 2 to 6, characterized in that: The number of the bearings (11) is at least two, and two adjacent bearings (11) are separated by a spacer ring (4). The spacer ring (4) is fixedly sleeved on the periphery of the connector (1), and the two ends of the spacer ring (4) are respectively in contact with the inner circles of the two adjacent bearings (11).

8. The rotary air nozzle according to claim 7, characterized in that: The outer diameter of the spacer ring (4) is smaller than the outer diameter of the bearing (11).

9. The rotary air nozzle according to claim 7, characterized in that: The front end periphery of the connector (1) is provided with a stepped groove (12), and the bearing (11) and the spacer ring (4) are both sleeved and fixed in the stepped groove (12), wherein the inner circle of the bearing (11) at the rear end contacts the vertical groove wall of the stepped groove (12), and the front end of the stepped groove (12) is also sleeved and fixed with an anti-slip ring (5), and the rear end surface of the anti-slip ring (5) contacts the inner circle of the front end bearing (11) to confine all the bearings (11) in the stepped groove (12).

10. The rotary air nozzle according to claim 7, characterized in that: The rear end of the connector (1) is further provided with a hexagonal protruding ring (13) and a second threaded section (14) located on the rear side of the hexagonal protruding ring (13).

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