A quick-release, detachable, straight-tube main nozzle for looms

Abstract

This utility model discloses a quick-release, straight-tube type main nozzle for a loom, belonging to the technical field of air-jet loom accessories. Its key technical features include a loom housing, with a main nozzle body positioned on top of the housing. A positioning cylinder is fixedly connected to the bottom of the main nozzle body. An installation hole is formed on the surface of the loom housing, and the positioning cylinder is inserted into the installation hole. This utility model achieves self-adjusting sealing enhancement of the main nozzle under high-temperature conditions through the softening properties of a silicone rubber ring at high temperatures and the dynamic compression of a permanent magnet. By employing a dual design of silicone rubber ring sealing and limit plate airbag sealing, two seals can be simultaneously completed by simply inserting the positioning cylinder and pressing the limit plate. A two-stage fixing mechanism of toothed plate engagement locking and screw fine-tuning achieves quick disassembly and assembly of the main nozzle with high stability. The inclined guide of the extrusion block, combined with the spring-returned toothed plate, enables one-button locking.

Description

Technical Field

[0001] This utility model belongs to the technical field of air jet loom accessories, specifically relating to a quick-release and detachable straight-tube type main nozzle for looms. Background Technology

[0002] As a representative of modern shuttleless looms, the air-jet loom uses the main nozzle, a core component, to guide the weft yarn through high-speed airflow, thus achieving advantages such as high speed, high efficiency, and wide adaptability.

[0003] A search revealed Chinese patent CN215051026U, which discloses a textile main nozzle that is easy to install securely. The nozzle body is cylindrical and contains a first yarn guide tube. A cylindrical locking block is fixedly connected to the bottom of the nozzle body. However, the internal temperature of the main nozzle will rise during operation, and the sealing device in the prior art is not easy to change its state with temperature changes, resulting in poor sealing effect. Utility Model Content

[0004] The purpose of this invention is to provide a quick-release, detachable, straight-tube main nozzle for looms to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quick-release and detachable straight-tube type main nozzle for a loom, comprising a loom housing, a main nozzle body disposed on the upper part of the loom housing, a positioning cylinder fixedly connected to the bottom end of the main nozzle body, an installation hole provided on the surface of the loom housing, the positioning cylinder being inserted into the installation hole, a silicone rubber ring being sleeved on the surface of the positioning cylinder, the silicone rubber ring being located inside the installation hole and fitting against the inner wall of the installation hole.

[0006] Preferably, a fixing iron block is fixedly connected to the surface of the positioning cylinder, the fixing iron block is located below the silicone rubber ring, the fixing iron block is in contact with the inner wall of the mounting hole, and a permanent magnet is slidably connected to the surface of the positioning cylinder, the fixing iron block is located above the silicone rubber ring.

[0007] Preferably, a limiting plate is fixedly connected to the surface of the main nozzle body, and an air bladder is fixedly connected to the bottom surface of the limiting plate. The air bladder is in contact with the top surface of the loom housing, and the outer diameter of the air bladder is larger than the inner diameter of the mounting hole.

[0008] Preferably, the top surface of the limiting plate is provided with a plurality of extrusion grooves, and extrusion blocks are provided at positions corresponding to the extrusion grooves on the surface of the loom housing. Two second toothed plates are symmetrically and fixedly connected to the bottom surface of the extrusion blocks. Fixed grooves are provided at positions corresponding to the second toothed plates on the top surface of the loom housing. The second toothed plates are inserted into the fixed grooves. A first toothed plate is provided inside the fixed grooves. The first toothed plate and the second toothed plate are meshed together. A plurality of springs are provided inside the fixed grooves. The two ends of the springs are fixedly connected to the first toothed plate and the loom housing, respectively.

[0009] Preferably, the extrusion block has a trapezoidal structure with the inclined surface facing the direction of the extrusion groove, and the side of the extrusion groove facing the extrusion block is also inclined, with the two inclined surfaces fitting together.

[0010] Preferably, the same pressure rod is fixedly connected to the same end of the two first toothed plates located on the same side.

[0011] Preferably, each of the extrusion blocks is rotatably connected to a positioning plate on the side away from the extrusion groove, and a threaded cylinder is fixedly connected to the top surface of the loom housing at a position corresponding to the positioning plate. A lead screw is threadedly connected inside the threaded cylinder, and one end of the lead screw is inserted into the inside of the positioning plate.

[0012] Preferably, the positioning disk has a hexagonal groove inside, and a hexagonal block is fixedly connected to one end of the lead screw near the positioning disk, and the hexagonal block is inserted into the hexagonal groove.

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

[0014] 1. This utility model achieves self-adjusting sealing enhancement of the main nozzle under high temperature conditions by combining the softening properties of the silicone rubber ring at high temperatures with the dynamic extrusion of the permanent magnet. When the temperature rises, the softness of the silicone rubber ring increases, and the permanent magnet continuously approaches the fixed iron block and extrudes the silicone rubber ring, making it fit more tightly against the inner wall of the mounting hole. This effectively solves the leakage problem caused by thermal expansion and contraction of traditional seals and significantly improves the sealing reliability of the main nozzle under high temperature conditions.

[0015] 2. This utility model adopts a dual design of silicone rubber ring sealing and limit plate airbag sealing. Only the positioning cylinder needs to be inserted and the limit plate pressed to complete the two seals simultaneously. After the airbag is deformed by pressure, it fits tightly against the top surface of the loom housing. This simplifies the installation process and ensures uniform sealing by compensating for assembly tolerances through elastic contact.

[0016] 3. This utility model achieves rapid assembly and disassembly of the main nozzle and high stability through a two-stage fixing mechanism of toothed plate meshing and locking and screw fine adjustment. The inclined guide of the extrusion block, combined with the spring return toothed plate, achieves one-click locking. Subsequently, the screw is tightened by thread to further increase pressure, and the hexagonal groove positioning prevents loosening. This design not only ensures installation efficiency, but also achieves high-strength fixing against vibration through mechanical force amplification. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the silicone rubber ring and permanent magnet structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the vertical cross-sectional structure of the loom housing of this utility model;

[0020] Figure 4 This utility model Figure 3 Enlarged view of part A.

[0021] In the diagram: 1. Loom housing; 2. Main nozzle body; 3. Limiting plate; 4. Extrusion groove; 5. Positioning cylinder; 6. Silicone rubber ring; 7. Permanent magnet; 8. Fixing iron block; 9. Airbag; 10. Extrusion block; 11. Fixing groove; 12. First toothed plate; 13. Spring; 14. Second toothed plate; 15. Pressure rod; 16. Positioning plate; 17. Lead screw; 18. Threaded cylinder. 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 1-4This utility model provides a quick-assembly and disassembly type straight-tube main nozzle for a loom, including a loom housing 1, a main nozzle body 2 disposed on the upper part of the loom housing 1, a positioning cylinder 5 fixedly connected to the bottom end of the main nozzle body 2, an installation hole opened on the surface of the loom housing 1, the positioning cylinder 5 inserted into the installation hole, a silicone rubber ring 6 sleeved on the surface of the positioning cylinder 5, the silicone rubber ring 6 located inside the installation hole and in contact with the inner wall of the installation hole, a fixing iron block 8 fixedly connected to the surface of the positioning cylinder 5, the fixing iron block 8 located below the silicone rubber ring 6, the fixing iron block 8 in contact with the inner wall of the installation hole, and a permanent magnet 7 slidably connected to the surface of the positioning cylinder 5, the fixing iron block 8 located below the silicone rubber ring 6. Above, when installing the main nozzle body 2, align the main nozzle body 2 with the mounting hole, and then insert the positioning cylinder 5 into the mounting hole. After insertion, the silicone rubber ring 6 will be tightly attached to the inner wall of the mounting hole, thus forming a seal. When in use, the temperature inside the main nozzle body 2 rises. At this time, the silicone rubber ring 6 will gradually soften due to the high temperature, making it fit more closely to the inner wall of the mounting hole. The permanent magnet 7 will also move towards the fixed iron block 8 due to its own magnetism and the material of the fixed iron block 8. When the permanent magnet 7 moves, it squeezes the silicone rubber ring 6, making the relatively soft silicone rubber ring 6 fit more tightly, thereby strengthening the sealing between the main nozzle body 2 and the loom housing 1 at high temperatures.

[0024] It should be noted that the permanent magnet 7 is a neodymium iron boron permanent magnet, and the fixed iron block 8 is made of ferritic stainless steel, so as to achieve magnetic attraction.

[0025] In this embodiment, a limiting plate 3 is fixedly connected to the surface of the main nozzle body 2, and an airbag 9 is fixedly connected to the bottom surface of the limiting plate 3. The airbag 9 is in close contact with the top surface of the loom housing 1. The outer diameter of the airbag 9 is larger than the inner diameter of the mounting hole. When installing the main nozzle body 2, the limiting plate 3 will be pressed against the top surface of the loom housing 1, so that the airbag 9 is tightly attached to the top surface of the loom housing 1. Due to its own characteristics, the airbag 9 will deform to a certain extent when squeezed, so that the airbag 9 and the top surface of the loom housing 1 have a high degree of fit, thereby achieving secondary sealing.

[0026] In this embodiment, the top surface of the limiting plate 3 is provided with several extrusion grooves 4. Extrusion blocks 10 are provided at positions corresponding to the extrusion grooves 4 on the surface of the loom housing 1. Two second toothed plates 14 are symmetrically and fixedly connected to the bottom surface of each extrusion block 10. Fixing grooves 11 are provided at positions corresponding to the second toothed plates 14 on the top surface of the loom housing 1. The second toothed plates 14 are inserted into the fixing grooves 11. A first toothed plate 12 is provided inside the fixing grooves 11, and the first toothed plate 12 and the second toothed plate 14 are meshed together. Several springs 13 are provided inside the fixing grooves 11, with both ends of the springs 13 fixedly connected to the first toothed plate 12 and the loom housing 1, respectively. The extrusion blocks 10 have a trapezoidal structure with their inclined surfaces facing outwards, and the extrusion grooves 4 face outwards towards the extrusion. One side of block 10 is cut into an inclined surface, and the two inclined surfaces fit together. The same end of the two first toothed plates 12 on the same side is fixedly connected to the same pressure rod 15. In order to make the main nozzle body 2 more stable when installing the main nozzle body 2, the pressure rod 15 is pressed first, so that the first toothed plate 12 and the second toothed plate 14 are separated from each other. At this time, the spring 13 will be squeezed, and then the extrusion block 10 is pushed into the extrusion groove 4, so that the two inclined surfaces fit together. The second toothed plate 14 will move inside the fixed groove 11 until the extrusion block 10 can no longer be pushed. Then the limit on the pressure rod 15 is released, and the spring 13 will mesh the first toothed plate 12 and the second toothed plate 14 due to elastic potential energy, thereby locking the extrusion block 10.

[0027] In this embodiment, each extrusion block 10 is rotatably connected to a positioning disk 16 on the side away from the extrusion groove 4. Threaded cylinders 18 are fixedly connected to the top surface of the loom housing 1 at positions corresponding to the positioning disks 16. A lead screw 17 is threadedly connected inside the threaded cylinder 18. One end of the lead screw 17 is inserted into the interior of the positioning disk 16. A hexagonal groove is formed inside the positioning disk 16. A hexagonal block is fixedly connected to the end of the lead screw 17 near the positioning disk 16, and the hexagonal block is inserted into the interior of the hexagonal groove. To make the extrusion block 10 press more tightly, the lead screw 17 is inserted into the interior of the threaded cylinder 18 and rotated to make it threadedly connected to the threaded cylinder 18 until the hexagonal block is inserted into the interior of the hexagonal groove. By rotating the lead screw 17, the extrusion block 10 moves forward again, thus achieving a tighter press.

[0028] The use of this utility model involves the following steps:

[0029] S1: When installing the main nozzle body 2, align the main nozzle body 2 with the mounting hole, and then insert the positioning cylinder 5 into the mounting hole. After insertion, the silicone rubber ring 6 will be tightly attached to the inner wall of the mounting hole, thus forming a seal. When in use, the temperature inside the main nozzle body 2 rises. At this time, the silicone rubber ring 6 will gradually soften due to the high temperature, making it fit more closely to the inner wall of the mounting hole. The permanent magnet 7 will also move towards the fixed iron block 8 due to its own magnetism and the material of the fixed iron block 8. When the permanent magnet 7 moves, it squeezes the silicone rubber ring 6, making the relatively soft silicone rubber ring 6 fit more tightly, thereby strengthening the sealing between the main nozzle body 2 and the loom housing 1 at high temperatures.

[0030] S2: When installing the main nozzle body 2, the limiting plate 3 will be pressed against the top surface of the loom housing 1, so that the airbag 9 is tightly attached to the top surface of the loom housing 1. Due to its own characteristics, the airbag 9 will deform to a certain extent when squeezed, so that the airbag 9 and the top surface of the loom housing 1 have a high degree of fit, thereby achieving secondary sealing.

[0031] S3: In order to make the main nozzle body 2 more stable when installing the main nozzle body 2, first press the pressure rod 15 to separate the first toothed plate 12 and the second toothed plate 14. At this time, the spring 13 will be squeezed, and then push the extrusion block 10 into the extrusion groove 4 so that the two inclined surfaces fit together. The second toothed plate 14 will move inside the fixed groove 11 until the extrusion block 10 can no longer be pushed. Then release the limit on the pressure rod 15. The spring 13 will mesh the first toothed plate 12 and the second toothed plate 14 with each other due to the elastic potential energy, thereby locking the extrusion block 10.

[0032] S4: In order to press the extrusion block 10 more tightly, insert the lead screw 17 into the inside of the threaded cylinder 18 and rotate it to make it threadedly connected to the threaded cylinder 18 until the hexagonal block is inserted into the inside of the hexagonal groove. By rotating the lead screw 17, the extrusion block 10 is moved forward again, thus achieving a tighter press.

[0033] 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.

[0034] 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.

[0035] 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. A quick-release, detachable, straight-tube type main nozzle for a loom, comprising a loom housing (1), characterized in that: A main nozzle body (2) is provided above the loom housing (1). A positioning cylinder (5) is fixedly connected to the bottom end of the main nozzle body (2). An installation hole is provided on the surface of the loom housing (1). The positioning cylinder (5) is inserted into the installation hole. A silicone rubber ring (6) is sleeved on the surface of the positioning cylinder (5). The silicone rubber ring (6) is located inside the installation hole and fits against the inner wall of the installation hole.

2. A quick-change straight jet cylinder loom main nozzle according to claim 1, characterized in that: A fixing iron block (8) is fixedly connected to the surface of the positioning cylinder (5). The fixing iron block (8) is located below the silicone rubber ring (6). The fixing iron block (8) is in contact with the inner wall of the mounting hole. A permanent magnet (7) is slidably connected to the surface of the positioning cylinder (5). The fixing iron block (8) is located above the silicone rubber ring (6).

3. A quick change nozzle for a straight jet beam loom as defined in claim 1, wherein: A limiting plate (3) is fixedly connected to the surface of the main nozzle body (2). An air bag (9) is fixedly connected to the bottom surface of the limiting plate (3). The air bag (9) is in contact with the top surface of the loom housing (1). The outer diameter of the air bag (9) is larger than the inner diameter of the mounting hole.

4. A quick-change straight jet beam loom main nozzle according to claim 3, characterized in that: The top surface of the limiting plate (3) is provided with several extrusion grooves (4). The surface of the loom housing (1) is provided with extrusion blocks (10) at positions corresponding to the extrusion grooves (4). The bottom surface of the extrusion blocks (10) is symmetrically and fixedly connected with two second toothed plates (14). The top surface of the loom housing (1) is provided with fixing grooves (11) at positions corresponding to the second toothed plates (14). The second toothed plates (14) are inserted into the fixing grooves (11). The fixing grooves (11) are provided with first toothed plates (12). The first toothed plates (12) and the second toothed plates (14) are meshed together. The fixing grooves (11) are provided with several springs (13). The two ends of the springs (13) are fixedly connected to the first toothed plates (12) and the loom housing (1), respectively.

5. A quick change nozzle for a straight jet beam loom according to claim 4, wherein: The extrusion block (10) has a trapezoidal structure with the inclined surface facing the same direction. The extrusion groove (4) has an inclined surface on the side facing the extrusion block (10), and the two inclined surfaces fit together.

6. The quick-release type straight-tube main nozzle for a loom according to claim 4, characterized in that: The same pressure rod (15) is fixedly connected to the same end of the two first toothed plates (12) located on the same side.

7. A quick change nozzle of a straight jet beam type loom according to claim 4, wherein: Each of the extrusion blocks (10) is rotatably connected to a positioning disc (16) on the side away from the extrusion groove (4). A threaded cylinder (18) is fixedly connected to the top surface of the loom housing (1) at a position corresponding to the positioning disc (16). A lead screw (17) is threadedly connected inside the threaded cylinder (18), and one end of the lead screw (17) is inserted into the inside of the positioning disc (16).

8. A quick-change straight jet beam type loom main nozzle according to claim 7, characterized in that: The positioning disk (16) has a hexagonal groove inside. The lead screw (17) has a hexagonal block fixedly connected to one end near the positioning disk (16), and the hexagonal block is inserted into the hexagonal groove.

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