Swinging main nozzle of air jet loom

Abstract

The utility model relates to the technical field of textile machinery, and discloses an air jet loom swing main nozzle which comprises a connecting seat, the bottom of the connecting seat is fixedly connected with a fixing seat, a nozzle sleeve is arranged in the fixing seat, a nozzle set is arranged in the nozzle sleeve, a spring cavity is formed in the outer surface of the nozzle sleeve, and a spring is arranged in the spring cavity. A limiting spring is fixedly connected to the inner wall of the spring cavity, a limiting block is fixedly connected to one end of the limiting spring, and a mounting sliding groove is formed in the inner wall of the fixing base. The device has the following advantages and effects that through the arrangement of the fixing base, the nozzle barrel sleeve, the limiting spring, the limiting block, the mounting sliding groove, the fixing hole, the locking base, the pressing spring, the pressing block and the pressing rod, the effect that the nozzle barrel sleeve is convenient to disassemble and assemble is achieved, and the practicability and use convenience of the device are enhanced; and a worker can conveniently maintain and replace the nozzle regularly.

Description

Technical Field

[0001] This utility model relates to the field of textile machinery technology, and in particular to a swing main nozzle for an air-jet loom. Background Technology

[0002] An air-jet loom is a shuttleless loom that uses jet airflow to pull the weft yarn through the shed. It uses air as the weft insertion medium, and the compressed airflow generated by the jet creates frictional traction on the weft yarn, which is then pulled through the shed. The jet of air is used to achieve the purpose of weft insertion.

[0003] Chinese Patent Publication No. (CN217948395U) discloses a pneumatic oscillating main nozzle for an air-jet loom, including a valve head. A threaded head is fixedly mounted on one side of the valve head, and the threaded head is connected to a main nozzle connector via a fixing nut. A connecting sleeve is threadedly connected to the lower opening of a first threaded tube via a second threaded tube. The bottom end of the nozzle is located at the lower opening of the connecting sleeve. A sealing cap is inserted into the lower opening of the connecting sleeve. The outer surface of the sealing cap has a closing opening, and the inner wall of the closing opening is tightly fitted to the outer surface of the bottom end of the nozzle. A heat dissipation hole extending through to the cavity is formed on the outer circumferential surface of the connecting sleeve. By positioning the nozzle inside the cavity of the connecting sleeve and extending the heat dissipation hole through the outside of the connecting sleeve into the cavity, the heat generated by the nozzle can be quickly dissipated. Furthermore, the sealing cap at the bottom of the connecting sleeve supports the nozzle, ensuring its stability during use.

[0004] However, the above-mentioned utility model still has the following problems: In actual use, the main nozzle of the air-jet loom needs to be inspected and replaced regularly during long-term use. However, the above-mentioned utility model is inconvenient to disassemble the main nozzle, and it is more troublesome to carry out inspection and replacement. Therefore, it needs to be improved. Utility Model Content

[0005] The purpose of this invention is to provide a swing main nozzle for an air-jet loom that is easy to assemble and disassemble.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a swing main nozzle for an air-jet loom, including a connecting seat, a fixed seat fixedly connected to the bottom of the connecting seat, a nozzle sleeve provided inside the fixed seat, a nozzle assembly provided inside the nozzle sleeve, a spring cavity formed on the outer surface of the nozzle sleeve, a limit spring fixedly connected to the inner wall of the spring cavity, a limit block fixedly connected to one end of the limit spring, an installation groove formed on the inner wall of the fixed seat, a fixing hole formed on the inner wall of the installation groove, a locking seat fixedly connected to the outer surface of the fixed seat, a movable cavity formed inside the locking seat, a pressing spring fixedly connected to the inner wall of the movable cavity, a pressure block fixedly connected to one end of the pressing spring, and a pressure rod fixedly connected to one side of the pressure block.

[0007] By adopting the above technical solution, and by setting up a fixed base, nozzle sleeve, limiting spring, limiting block, mounting groove, fixing hole, locking base, pressing spring, pressure block, and pressure rod, when the nozzle needs to be disassembled, simply press the pressure block with two fingers. When the pressure block is pressed, it drives the limiting block to move into the spring cavity through the pressure rod until the limiting block leaves the fixing hole. Then, pull the nozzle sleeve downward to pull it out of the fixed base. When installing the nozzle sleeve, simply align the limiting block with the mounting groove and push the nozzle sleeve upward until the limiting block slides to the fixing hole. Then, the limiting spring resets and drives the limiting block into the fixing hole, thus completing the installation and fixing of the nozzle sleeve. This design achieves the effect of easy disassembly and installation of the nozzle sleeve, enhances the practicality and convenience of the device, and facilitates the staff to regularly maintain and replace the nozzle.

[0008] A further feature of this invention is that the upper surface of the connecting seat is provided with an air inlet hole, and the inner wall of the air inlet hole is provided with an internal thread.

[0009] By adopting the above technical solution and setting an air inlet, the device can be easily installed and connected to the air intake pipe.

[0010] A further feature of this invention is that a sealing base plate is fixedly connected to the inner wall of the nozzle sleeve, the sealing base plate is fixedly connected to the nozzle assembly, and an air outlet is provided on the lower surface of the sealing base plate, the air outlet being connected to the nozzle assembly.

[0011] By adopting the above technical solution and setting a sealing base plate, the position of the nozzle in the nozzle assembly is fixed.

[0012] A further feature of this invention is that there are two locking seats and two movable cavities, and the inner walls of the two movable cavities are provided with pressure rod outlets.

[0013] By adopting the above technical solution and setting a pressure rod outlet, it is ensured that the pressure rod can move into the fixed hole, thereby pushing the limit block to move.

[0014] A further feature of this invention is that a positioning plate is fixedly connected to the inner wall of the fixed base, a connecting pipe is fixedly connected to the bottom of the positioning plate, and an air inlet is provided on the upper surface of the positioning plate, the air inlet being connected to the connecting pipe.

[0015] By adopting the above technical solution and setting a positioning plate, the nozzle sleeve can be positioned during installation.

[0016] A further feature of this invention is that the number of connecting pipes is six, and each of the six connecting pipes has a rubber sealing joint fixedly connected to its bottom.

[0017] By adopting the above technical solution, the number of connecting pipes is consistent with the number of nozzles in the nozzle assembly, and the rubber sealing joint below the connecting pipe can improve the airtightness between the connecting pipe and the nozzle assembly.

[0018] A further feature of this invention is that the inner wall of the fixing base is provided with an annular mounting groove, and an annular sealing ring is fixedly connected to the inner wall of the annular mounting groove, the annular sealing ring being located below the positioning plate.

[0019] By adopting the above technical solution, and by setting a positioning plate, connecting pipe, rubber sealing joint and annular sealing ring, the airtightness between the fixed seat and the nozzle sleeve can be effectively improved, and compressed gas can be prevented from overflowing from the connection between the fixed seat and the nozzle sleeve.

[0020] A further feature of this invention is that the lower surface of the positioning plate is provided with an annular groove, and the upper surface of the nozzle sleeve is fixedly connected with an annular locking block.

[0021] By adopting the above technical solution and setting an annular groove and annular block, the stability of the connection between the nozzle sleeve and the fixed seat can be further enhanced.

[0022] A further feature of this invention is that a positioning slider is fixedly connected to the outer surface of the nozzle sleeve, and a positioning groove is provided on the inner wall of the fixing seat. The nozzle sleeve is slidably connected to the fixing seat through the positioning slider and the positioning groove.

[0023] By adopting the above technical solution, and by setting a positioning slider and a positioning groove, when installing the nozzle sleeve, simply align the positioning slider with the positioning groove to push the nozzle sleeve upward. At this time, the limiting block on the nozzle sleeve is inside the installation groove. This design plays a positioning role when installing the nozzle sleeve, and facilitates quick alignment between the limiting block and the installation groove.

[0024] A further feature of this invention is that the number of mounting grooves is two, and the inner walls of both mounting grooves are provided with arc-shaped notches.

[0025] By adopting the above technical solution and setting an arc-shaped notch, the arc-shaped notch can effectively reduce the friction of the limiting block when it enters the installation groove, making the process of the limiting block entering the installation groove smoother.

[0026] The beneficial effects of this utility model are as follows: By setting a fixed base, nozzle sleeve, limiting spring, limiting block, mounting groove, fixing hole, locking base, pressing spring, pressure block, and pressure rod, when the nozzle needs to be disassembled, simply press the pressure block with two fingers. The pressure block, when pressed, moves the limiting block into the spring cavity via the pressure rod until the limiting block leaves the fixing hole. Then, pull the nozzle sleeve downwards to remove it from the fixed base. When installing the nozzle sleeve, simply align the limiting block with the mounting groove and push the nozzle sleeve upwards until the limiting block slides to the fixing hole. The limiting spring then resets, causing the limiting block to enter the fixing hole, thus completing the installation and fixing of the nozzle sleeve. This design is practical. This design facilitates the disassembly and installation of the nozzle sleeve, enhancing its practicality and ease of use, and allowing staff to perform regular maintenance and replacement of the nozzle. By incorporating a positioning plate, connecting pipe, rubber sealing joint, and annular sealing ring, the airtightness between the fixed base and the nozzle sleeve is effectively improved, preventing compressed gas from leaking out from the connection point. With the positioning slider and positioning groove, during nozzle sleeve installation, simply align the positioning slider with the positioning groove to push the nozzle sleeve upwards. At this point, the limiting block on the nozzle sleeve is positioned inside the installation groove. This design provides positioning during nozzle sleeve installation, facilitating quick alignment between the limiting block and the installation groove. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments 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.

[0028] Figure 1 This is a schematic diagram of the structure of this utility model;

[0029] Figure 2 This is a schematic diagram of the structure of the fixing base in this utility model;

[0030] Figure 3 This is a schematic diagram of the positioning slider in this utility model;

[0031] Figure 4 This is a schematic diagram of the positioning plate in this utility model.

[0032] In the diagram, 1. Connecting seat; 2. Fixed seat; 3. Nozzle sleeve; 4. Nozzle assembly; 5. Spring cavity; 6. Limiting spring; 7. Limiting block; 8. Mounting groove; 9. Fixing hole; 10. Locking seat; 11. Movable cavity; 12. Pressing spring; 13. Pressure block; 14. Pressure rod; 15. Air inlet; 16. Sealing base plate; 17. Pressure rod outlet; 18. Positioning plate; 19. Connecting pipe; 20. Rubber sealing joint; 21. Annular sealing ring; 22. Annular groove; 23. Annular block; 24. Positioning slider; 25. Positioning groove; 26. Arc-shaped notch. Detailed Implementation

[0033] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0034] Reference Figure 1-4A swing main nozzle for an air-jet loom includes a connecting seat 1, a fixing seat 2 fixedly connected to the bottom of the connecting seat 1, a nozzle sleeve 3 disposed inside the fixing seat 2, a nozzle assembly 4 disposed inside the nozzle sleeve 3, a spring cavity 5 formed on the outer surface of the nozzle sleeve 3, a limit spring 6 fixedly connected to the inner wall of the spring cavity 5, a limit block 7 fixedly connected to one end of the limit spring 6, an installation groove 8 formed on the inner wall of the fixing seat 2, a fixing hole 9 formed on the inner wall of the installation groove 8, a locking seat 10 fixedly connected to the outer surface of the fixing seat 2, a movable cavity 11 formed inside the locking seat 10, a pressing spring 12 fixedly connected to the inner wall of the movable cavity 11, a pressure block 13 fixedly connected to one end of the pressing spring 12, and a pressure rod 14 fixedly connected to one side of the pressure block 13. The device comprises a fixed base 2, a nozzle sleeve 3, a limiting spring 6, a limiting block 7, a mounting groove 8, a fixing hole 9, a locking base 10, a pressing spring 12, a pressure block 13, and a pressure rod 14. When using this device, to disassemble the nozzle, simply press the pressure block 13 with two fingers. The pressure block 13, when pressed, moves the limiting block 7 into the spring cavity 5 via the pressure rod 14 until the limiting block 7 leaves the fixing hole 9. Then, pull the nozzle sleeve 3 downwards to remove it from the fixed base 2. To install the nozzle sleeve 3, simply align the limiting block 7 with the mounting groove 8 and push the nozzle sleeve 3 upwards until the limiting block 7 slides into the fixing hole 9. The limiting spring 6 then resets, causing the limiting block 7 to enter the fixing hole 9, thus completing the installation and fixing of the nozzle sleeve 3. This design facilitates the disassembly and installation of the nozzle sleeve 3, enhancing the practicality and ease of use of the device. It allows for regular maintenance and replacement of the nozzles. An air inlet 15 is provided on the upper surface of the connecting seat 1, with internal threads on its inner wall. The air inlet 15 facilitates the connection and installation of the device with the air intake pipe. A sealing base plate 16 is fixedly connected to the inner wall of the nozzle sleeve 3, and is also fixedly connected to the nozzle assembly 4. An air outlet is provided on the lower surface of the sealing base plate 16, communicating with the nozzle assembly 4. The sealing base plate 16 serves to fix the position of the nozzle tube in the nozzle assembly 4. There are two locking seats 10 and two movable chambers 11, with pressure rods provided on the inner walls of the two movable chambers 11. Outlet 17: By setting outlet 17, the pressure rod 14 can be moved into the fixing hole 9, thereby pushing the limit block 7 to move. A positioning plate 18 is fixedly connected to the inner wall of the fixing base 2. A connecting pipe 19 is fixedly connected to the bottom of the positioning plate 18. An air inlet is opened on the upper surface of the positioning plate 18, which communicates with the connecting pipe 19. The positioning plate 18 is used to position the nozzle sleeve 3 during installation. There are six connecting pipes 19. A rubber sealing joint 20 is fixedly connected to the bottom of each of the six connecting pipes 19. The number of connecting pipes 19 is the same as the number of nozzles in the nozzle assembly 4. The rubber sealing joint 20 below the connecting pipes 19 can improve the airtightness between the connecting pipes 19 and the nozzle assembly 4. An annular mounting groove is opened on the inner wall of the fixing base 2.An annular sealing ring 21 is fixedly connected to the inner wall of the annular mounting groove. The annular sealing ring 21 is located below the positioning plate 18. By setting the positioning plate 18, connecting pipe 19, rubber sealing joint 20, and annular sealing ring 21, the airtightness between the fixed seat 2 and the nozzle sleeve 3 can be effectively improved, preventing compressed gas from overflowing from the connection between the fixed seat 2 and the nozzle sleeve 3. An annular groove 22 is opened on the lower surface of the positioning plate 18, and an annular block 23 is fixedly connected to the upper surface of the nozzle sleeve 3. By setting the annular groove 22 and annular block 23, the stability of the connection between the nozzle sleeve 3 and the fixed seat 2 can be further enhanced. A positioning slider 24 is fixedly connected to the outer surface of the nozzle sleeve 3, and a positioning groove 25 is opened on the inner wall of the fixed seat 2. The nozzle sleeve 3 is positioned by the positioning slider. Positioning slider 24 and positioning groove 25 are slidably connected to fixed base 2. By setting positioning slider 24 and positioning groove 25, when installing nozzle sleeve 3, simply align positioning slider 24 with positioning groove 25 to push nozzle sleeve 3 upward. At this time, limiting block 7 on nozzle sleeve 3 is inside mounting groove 8. This design plays a positioning role during nozzle sleeve 3 installation, facilitating quick alignment between limiting block 7 and mounting groove 8. There are two mounting grooves 8, and the inner walls of both mounting grooves 8 are provided with arc-shaped notches 26. By setting arc-shaped notches 26, when installing nozzle sleeve 3, the arc-shaped notches 26 can effectively reduce the friction of limiting block 7 when entering mounting groove 8, making the process of limiting block 7 entering mounting groove 8 smoother.

[0035] In this utility model, by setting a fixed base 2, a nozzle sleeve 3, a limiting spring 6, a limiting block 7, an installation groove 8, a fixing hole 9, a locking base 10, a pressing spring 12, a pressure block 13, and a pressure rod 14, the device allows for easy disassembly of the nozzle. When the nozzle needs to be disassembled, simply press the pressure block 13 with two fingers. The pressure block 13, when pressed, moves the limiting block 7 into the spring cavity 5 via the pressure rod 14 until the limiting block 7 leaves the fixing hole 9. Then, pull the nozzle sleeve 3 downwards to remove it from the fixed base 2. When installing the nozzle sleeve 3, simply align the limiting block 7 with the installation groove 8 and push the nozzle sleeve 3 upwards until the limiting block 7 slides into the fixing hole 9. Then, the limiting spring 6 resets, causing the limiting block 7 to enter the fixing hole 9, thus completing the installation and fixing of the nozzle sleeve 3. This design... This design facilitates the disassembly and installation of the nozzle sleeve 3, enhancing its practicality and ease of use, and allowing staff to perform regular maintenance and replacement of the nozzle. The positioning plate 18, connecting pipe 19, rubber sealing joint 20, and annular sealing ring 21 effectively improve the airtightness between the fixed base 2 and the nozzle sleeve 3, preventing compressed gas from leaking out from the connection point. The positioning slider 24 and positioning groove 25 allow the nozzle sleeve 3 to be easily installed by aligning the positioning slider 24 with the positioning groove 25 and pushing it upwards. At this point, the limiting block 7 on the nozzle sleeve 3 is positioned inside the installation groove 8. This design provides positioning for the nozzle sleeve 3 during installation, facilitating quick alignment between the limiting block 7 and the installation groove 8.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A swing main nozzle for an air-jet loom, comprising a connecting seat (1), characterized in that: The bottom of the connecting seat (1) is fixedly connected to a fixed seat (2). The fixed seat (2) is provided with a nozzle sleeve (3). The nozzle sleeve (3) is provided with a nozzle assembly (4). The outer surface of the nozzle sleeve (3) is provided with a spring cavity (5). The inner wall of the spring cavity (5) is fixedly connected with a limit spring (6). One end of the limit spring (6) is fixedly connected with a limit block (7). The inner wall of the fixed seat (2) is provided with an installation groove (8). The inner wall of the installation groove (8) is provided with a fixing hole (9). The outer surface of the fixed seat (2) is fixedly connected to a locking seat (10). The inside of the locking seat (10) is provided with a movable cavity (11). The inner wall of the movable cavity (11) is fixedly connected with a pressing spring (12). One end of the pressing spring (12) is fixedly connected with a pressure block (13). One side of the pressure block (13) is fixedly connected with a pressure rod (14).

2. The oscillating main nozzle of a jet loom according to claim 1, characterized in that: The upper surface of the connecting seat (1) is provided with an air inlet (15), and the inner wall of the air inlet (15) is provided with an internal thread.

3. The oscillating main nozzle of an air-jet loom according to claim 1, characterized in that: The inner wall of the nozzle sleeve (3) is fixedly connected to a sealing base plate (16), the sealing base plate (16) is fixedly connected to the nozzle assembly (4), and the lower surface of the sealing base plate (16) is provided with an air outlet, which is connected to the nozzle assembly (4).

4. The oscillating main nozzle of an air-jet loom according to claim 1, characterized in that: The number of locking seats (10) and movable chambers (11) are both two, and the inner walls of the two movable chambers (11) are provided with pressure rod outlets (17).

5. The oscillating main nozzle of an air-jet loom according to claim 1, characterized in that: The inner wall of the fixed base (2) is fixedly connected to a positioning plate (18), and the bottom of the positioning plate (18) is fixedly connected to a connecting pipe (19). An air inlet is provided on the upper surface of the positioning plate (18), and the air inlet is connected to the connecting pipe (19).

6. The oscillating main nozzle of an air-jet loom according to claim 5, characterized in that: The number of the connecting pipes (19) is six, and the bottom of each of the six connecting pipes (19) is fixedly connected to a rubber sealing joint (20).

7. The oscillating main nozzle of an air-jet loom according to claim 1, characterized in that: The inner wall of the fixed base (2) is provided with an annular mounting groove, and an annular sealing ring (21) is fixedly connected to the inner wall of the annular mounting groove. The annular sealing ring (21) is located below the positioning plate (18).

8. The oscillating main nozzle of an air-jet loom according to claim 5, characterized in that: The lower surface of the positioning plate (18) is provided with an annular groove (22), and the upper surface of the nozzle sleeve (3) is fixedly connected with an annular block (23).

9. The oscillating main nozzle of an air-jet loom according to claim 1, characterized in that: The outer surface of the nozzle sleeve (3) is fixedly connected to a positioning slider (24), and the inner wall of the fixed seat (2) is provided with a positioning groove (25). The nozzle sleeve (3) is slidably connected to the fixed seat (2) through the positioning slider (24) and the positioning groove (25).

10. The oscillating main nozzle of an air-jet loom according to claim 1, characterized in that: The number of mounting grooves (8) is two, and the inner walls of the two mounting grooves (8) are provided with arc-shaped notches (26).

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