Weft insertion mechanism for water jet loom

Abstract

The utility model provides a weft insertion mechanism of water jet loom relates to textile machinery technical field, include: weft insertion component, weft insertion component includes base, the middle part fixed mounting of base upper end has the nozzle, the middle part of nozzle is opened has the rotary groove, the rotary groove's middle part rotatoryly installed has the whirling ring, the outside fixed mounting of whirling ring one end has the gear ring, the one end of whirling ring passes through screw fixed mounting has the limit stop, the middle part of nozzle, whirling ring and limit stop all are opened has the through -hole, the outside even of whirling ring one end middle part all opened has a plurality of limit slot no.

Description

Technical Field

[0001] This utility model relates to the field of textile machinery technology, and in particular to the weft insertion mechanism of a water jet loom. Background Technology

[0002] The weft insertion mechanism of a water jet loom mainly consists of a water pump, nozzles, clamps, a weft measuring and storage device, and scissors. Its working principle is to use water as the weft insertion medium. The jetting water creates frictional traction on the weft yarn, guiding it from the fixed bobbin into the shed. In common water jet looms, the jetting device includes a jet pump and nozzles. The jet pump is the main part of the weft insertion mechanism, providing a high-pressure water flow that can introduce one weft per loom rotation.

[0003] In the prior art, Chinese utility model patent CN211005820U discloses a jetting device for the weft insertion mechanism of a water-jet loom, including a water storage tank and a jetting water pump. The input end of the jetting water pump is connected to the bottom of the water storage tank through an inlet pipe, and the output end of the jetting water pump is connected to a nozzle through a delivery pipe. The yarn presser is located below the nozzle, and a self-testing mechanism is installed on the inlet pipe and the delivery pipe. The self-testing mechanism includes a water treatment tank and a controller. One side of the bottom of the water treatment tank is connected to one side of the inlet pipe through an inlet branch pipe, and the outlet on one side of the top of the water treatment tank is connected to one side of the inlet pipe through an outlet branch pipe. A first calcium and magnesium ion concentration meter is installed on the inlet pipe below the water treatment tank, and a second calcium and magnesium ion concentration meter is installed on the delivery pipe. One side of the delivery pipe is connected to a delivery branch pipe.

[0004] In existing technologies, the aforementioned devices can process and monitor water quality through a self-testing mechanism. However, some shortcomings still exist in actual use. For example, the water flow adjustment capability is limited; the nozzle openings in the aforementioned devices are fixed, making it difficult to adjust the spray intensity, speed, and range of the water flow when facing diverse production needs, thus failing to achieve the optimal weft insertion effect. For instance, for lightweight fabrics and heavy fabrics, the fixed-opening nozzles cannot provide a water flow that is compatible with the fabric, which may cause excessive impact on lightweight weft yarns or fail to provide sufficient traction for heavy weft yarns, thus exhibiting certain limitations. At the same time, the overall adaptability and flexibility are poor. When producing different types of fabrics, it may be necessary to make large-scale adjustments or replace parts of the entire weft insertion system, which will increase the equipment's operating costs and downtime, thereby reducing the company's production flexibility and market responsiveness.

[0005] Therefore, there is an urgent need for a weft insertion mechanism for water jet looms that can improve the nozzle's ability to regulate water flow, thereby enhancing its overall adaptability and flexibility to meet the needs of different fabrics. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a weft insertion mechanism for a water jet loom.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a weft insertion mechanism for a water jet loom, comprising: a weft insertion assembly, the weft insertion assembly including a base, a nozzle fixedly installed at the middle of the upper end of the base, a rotating groove formed in the middle of the nozzle, a rotating ring rotatably installed in the middle of the rotating groove, a toothed ring fixedly installed on the outer side of one end of the rotating ring, a limiting plate fixedly installed at one end of the rotating ring by screws, through holes formed in the middle of the nozzle, the rotating ring, and the limiting plate, a plurality of limiting grooves I evenly formed on the outer side of the middle of one end of the rotating ring, a sliding rod slidably engaged in the middle of the plurality of limiting grooves I, a baffle plate fixedly installed at one end of the plurality of sliding rods, a plurality of limiting grooves II evenly formed around the outer periphery of the middle of the limiting plate, the other ends of the plurality of sliding rods respectively slidably engaged in the middle of the limiting grooves II, a drive motor fixedly installed on one side of the upper end of the nozzle, a gear fixedly installed at the output end of the drive motor, and the rotating groove penetrating and meshing with the toothed ring on one side of the rotating groove.

[0008] In a preferred embodiment, a water tank is fixedly installed in the middle of one side of the upper end of the base, and a pump body is fixedly connected to one end of the water tank.

[0009] In a preferred embodiment, a connecting water pipe is fixedly connected to the other side of the water tank, and one end of the connecting water pipe is fixedly connected to a nozzle.

[0010] In one preferred embodiment, a water injection pipe is fixedly connected to one side of the upper end of the water tank.

[0011] In a preferred embodiment, a shaped reed is fixedly installed on one side of the upper end of the base.

[0012] In a preferred embodiment, a yarn guide is fixedly installed on the other side of the upper middle part of the base, and the yarn guide is located on one side of the nozzle.

[0013] In a preferred embodiment, a fixed-length weft feeder is fixedly installed on the other side of the upper end of the base.

[0014] In a preferred embodiment, the center points of the fixed-length weft feeder, yarn guide, nozzle, and shaped reed are located on the same horizontal line.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0016] 1. The adjustable nozzle design of this invention allows the weft insertion mechanism to adapt to different fabric types, weft yarn materials, and loom speeds. This eliminates the need for frequent equipment changes or large-scale adjustments, meeting diverse production needs and improving the versatility and flexibility of the loom. Simultaneously, the water supply system, consisting of a water tank, pump, and water injection pipe, provides a stable water supply. This stable supply and precise weft insertion ensure the continuity and reliability of the weft insertion process, reducing downtime, increasing production efficiency, and lowering production costs.

[0017] 2. When this utility model is in use, the center points of the fixed-length weft feeder, yarn guide, nozzle, and shaped reed are located on the same horizontal line, ensuring a smooth weft yarn conveying path, reducing weft yarn friction and tangling, enabling the weft yarn to accurately enter the shed, and making the arrangement of the weft yarn in the fabric more neat and uniform. This effectively reduces fabric defects such as weft shrinkage and weft breakage, greatly improving the quality and grade of the fabric and enhancing the product's competitiveness in the market. Attached Figure Description

[0018] Figure 1 A schematic diagram of the plan view of the weft insertion mechanism of the water jet loom provided by this utility model.

[0019] Figure 2 A three-dimensional structural diagram of the weft insertion mechanism of the water jet loom provided by this utility model.

[0020] Figure 3 This is a schematic diagram showing the disassembled cross-sectional structure of the nozzle of the weft insertion mechanism of the water jet loom provided by this utility model.

[0021] Figure 4 A schematic diagram of the exploding ring structure of the weft insertion mechanism of the water jet loom provided by this utility model.

[0022] Legend:

[0023] 1. Weft insertion assembly; 11. Base; 12. Nozzle; 13. Yarn guide; 14. Fixed-length weft feeder; 15. Water tank; 16. Pump body; 17. Water injection pipe; 18. Connecting water pipe; 19. Shaped reed; 2. Through hole; 21. Rotating groove; 22. Drive motor; 23. Gear; 24. Rotary ring; 25. Gear ring; 26. Limiting groove one; 27. Slide rod; 28. Baffle plate; 29. ​​Limiting plate; 30. Limiting groove two. Detailed Implementation

[0024] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings and examples.

[0025] It should be noted that many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0026] Furthermore, it should be understood in the description of this utility model that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral unit; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. However, specifying a direct connection indicates that the two main bodies at the connection point are not connected through a transitional structure, but are simply connected to form a whole through a connecting structure. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0028] In this utility model, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Example

[0029] like Figure 1-4As shown, this utility model provides a technical solution: a weft insertion mechanism for a water jet loom, comprising: a weft insertion assembly 1, the weft insertion assembly 1 including a base 11, a nozzle 12 fixedly installed at the middle of the upper end of the base 11, a rotating groove 21 opened in the middle of the nozzle 12, a rotating ring 24 rotatably installed in the middle of the rotating groove 21, a toothed ring 25 fixedly installed on the outer side of one end of the rotating ring 24, a limiting plate 29 fixedly installed at one end of the rotating ring 24 by screws, and through holes 2 opened in the middle of the nozzle 12, the rotating ring 24 and the limiting plate 29, and the middle of one end of the rotating ring 24... Multiple limiting grooves 26 are evenly provided on the outer side. A sliding rod 27 is slidably engaged in the middle of each limiting groove 26. A baffle 28 is fixedly installed at one end of each sliding rod 27. Multiple limiting grooves 30 are evenly provided around the outer side of the middle of the limiting plate 29. The other ends of the multiple sliding rods 27 are slidably engaged in the middle of each limiting groove 30. A drive motor 22 is fixedly installed on one side of the upper end of the nozzle 12. A gear 23 is fixedly installed at the output end of the drive motor 22. A rotating groove 21 is installed through one side of the rotating groove 21 and meshes with the gear ring 25.

[0030] In this embodiment, the size of the nozzle 12 opening can be flexibly adjusted to adapt to different weft insertion requirements. During adjustment, the drive motor 22 drives the gear 23 to rotate. Since the gear 23 meshes with the gear ring 25, the rotating ring 24 will rotate in the rotating groove 21. When the rotating ring 24 rotates, since one end of the slide rod 27 is engaged in the limiting groove 26 and the other end is engaged in the limiting groove 30, the relative position of the baffle 28 will change, thereby realizing the adjustment of the nozzle 12 opening size. This adjustability allows the weft insertion assembly 1 to accurately adjust the intensity and range of the water jet according to different fabric types, weft yarn materials, and loom speeds to achieve the best weft insertion effect. For example, when weaving lightweight fabrics, the opening can be reduced to make the water flow more concentrated and precise. To avoid excessive impact on thin weft yarns, and when weaving heavy fabrics, the opening is enlarged to provide greater water flow traction, ensuring that the weft yarn passes smoothly through the shed. The swivel ring 24 is rotatably installed in the swivel groove 21. This design ensures the stability of the swivel ring 24 during rotation, reduces shaking and offset, and makes the position adjustment of the baffle 28 more precise, thereby ensuring the accuracy and consistency of the nozzle 12 opening size adjustment. The limiting plate 29 is fixedly installed at one end of the swivel ring 24 by screws, and the slide rod 27 is slidably engaged in the limiting groove 1 26 and the limiting groove 2 30 respectively. This limiting structure effectively limits the movement range of the slide rod 27 and the baffle 28, preventing them from detaching or misaligning during operation, and improving the reliability and service life of the entire weft insertion assembly 1.

[0031] When the drive motor 22 starts, the gear 23 at its output end begins to rotate. Since the gear 23 meshes with the gear ring 25 on the outer side of one end of the rotating ring 24, according to the transmission principle of the gear 23, the rotation of the gear 23 will drive the gear ring 25 to rotate, thereby causing the rotating ring 24 to make circular motion around its own axis in the rotating groove 21. When the rotating ring 24 rotates, the slide rod 27 installed in the limiting groove 26 on the outer side of the middle part of one end will slide in the limiting groove 26 as the rotating ring 24 rotates. At the same time, the other end of the slide rod 27 slides in the limiting groove 30 on the outer side of the middle part of the limiting plate 29. Since the two ends of the slide rod 27 slide in different limiting grooves respectively, and a baffle 28 is fixedly installed on one end of the slide rod 27, the rotating ring The rotation of 24 will drive the baffle 28 to move through the slide bar 27. Multiple baffles 28 form the adjustable opening part of the nozzle 12. The change of the position of the baffle 28 will change the size of the nozzle 12 opening, thereby realizing the function of adjusting the size of the nozzle 12 spray nozzle. When weft insertion is required, water is sprayed from the nozzle 12, the rotating ring 24 and the through hole 2 in the middle of the limiting plate 29. By adjusting the size of the nozzle 12 opening, the spray intensity, speed and range of the water flow can be controlled. During the weft insertion process, according to different fabric types, weft yarn materials and loom speeds, the opening of the nozzle 12 is adjusted to a suitable size so that the water flow can guide the weft yarn through the shed in the best state to complete the weft insertion action. Example

[0032] like Figure 1-3 As shown, a water tank 15 is fixedly installed in the middle of one side of the upper end of the base 11. A pump body 16 is fixedly connected to one end of the water tank 15, and a connecting water pipe 18 is fixedly connected to the other side of the water tank 15. One end of the connecting water pipe 18 is fixedly connected to the nozzle 12. A water injection pipe 17 is fixedly connected to one side of the upper end of the water tank 15. A special-shaped reed 19 is fixedly installed in one side of the upper end of the base 11. A yarn guide 13 is fixedly installed in the other side of the middle of the upper end of the base 11. The yarn guide 13 is located on one side of the nozzle 12. A fixed-length weft feeder 14 is fixedly installed in the other side of the upper end of the base 11. The center points of the fixed-length weft feeder 14, the yarn guide 13, the nozzle 12, and the special-shaped reed 19 are located on the same horizontal line.

[0033] In this embodiment, the water tank 15 serves as a water storage device, providing sufficient water for the weft insertion process. The pump body 16 can extract water from the water tank 15 and provide a certain pressure, allowing the water to be smoothly delivered to the nozzle 12 through the connecting water pipe 18. This ensures the stability of the water flow during the weft insertion process, preventing weft insertion failure due to insufficient water supply or unstable pressure, and ensuring the continuity and reliability of the weft insertion operation. The water injection pipe 17 is connected to one side of the upper end of the water tank 15, facilitating timely replenishment of water into the water tank 15 and improving production efficiency. The fixed-length weft feeder 14 can precisely control the length of the weft yarn, providing an appropriate length of weft yarn for each weft insertion, ensuring uniform weft density of the fabric. The yarn guide 13 guides the weft yarn, allowing it to accurately enter the nozzle 12. The center points of the fixed-length weft feeder 14, yarn guide 13, nozzle 12, and shaped reed 19 are all located on the same horizontal line. This layout design ensures a smooth path for the weft yarn during transport, reduces weft yarn friction and tangling, and improves the accuracy and stability of weft insertion. The use of shaped reed 19 can adapt to different fabric structures and weaving process requirements. Compared with traditional reeds, shaped reed 19 can better control the arrangement and distribution of weft yarns, which helps to weave fabrics with special textures and appearances, thereby expanding the variety and application range of fabrics.

[0034] Working principle:

[0035] like Figure 1-4As shown, firstly, sufficient water is injected into the water tank 15 through the water injection pipe 17 to provide a water source for the weft insertion process. Simultaneously, the weft yarn is installed on the fixed-length weft feeder 14. The fixed-length weft feeder 14 stores and releases the weft yarn according to preset length requirements, ensuring an accurate length of weft yarn is provided each time weft is inserted. The fixed-length weft feeder 14 releases a certain length of weft yarn according to the weaving process requirements. Guided by the yarn guide 13, the weft yarn is accurately conveyed towards the nozzle 12. Since the center points of the fixed-length weft feeder 14, the yarn guide 13, the nozzle 12, and the shaped reed 19 are located on the same horizontal line, the weft yarn can move smoothly in a straight line, reducing bending and tangling. The pump body 16 is activated, drawing water from the water tank 15 and pressurizing it through the connecting water pipe 18 to deliver it to the nozzle 12. Water is ejected from the nozzle 12, the rotating ring 24, and the through-hole 2 in the middle of the limiting plate 29, forming a water flow with a certain pressure and speed. Simultaneously, depending on factors such as different fabric types, weft yarn materials, and loom speeds, the size of the nozzle 12 opening needs to be adjusted to control the spray intensity, speed, and range of the water flow. The drive motor 22 starts, and its output gear 23 rotates, driving the rotating ring 24, which meshes with the gear ring 25, to rotate in the rotating groove 21. As the rotating ring 24 rotates, it drives the sliding rod 27, installed in the outer limiting groove 26 at one end, to slide within the limiting groove 26. The other end of the sliding rod 27 slides within the limiting groove 30 around the outer perimeter of the limiting plate 29, thereby moving the baffle 28 and changing the size of the nozzle 12 opening, which consists of multiple baffles 28. This achieves precise adjustment of the water flow, and the adjusted water flow is sprayed from the nozzle 12, forming a high-speed water jet. During the spraying process, the water jet tightly wraps around and pulls the weft yarn fed by the yarn guide 13, causing the weft yarn to move forward with the water flow. Water flows through the gaps between the reed teeth of the shaped reed 19, entering the shed and completing the weft insertion process. The shaped reed 19 further combs and positions the weft yarn, ensuring its neat and even arrangement in the fabric. After one weft insertion is completed, other components of the loom, such as the heald frame and reed holder, will perform corresponding actions to complete the weaving process. Subsequently, the fixed-length weft feeder 14 releases the weft yarn again, the pump 16 continues to operate to provide water flow, and the nozzle 12 adjusts its opening size as needed, repeating the above weft insertion process. This cycle continues, continuously introducing the weft yarn into the shed to interweave with the warp yarns to form the fabric. Throughout the process, the water level in the water tank 15 will drop as water is consumed. Water can be replenished to the water tank 15 in a timely manner through the water injection pipe 17 to ensure the normal operation of the water supply system and maintain the continuity of the weft insertion process.

[0036] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0037] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A weft insertion mechanism for a water jet loom, comprising a weft insertion assembly (1), characterized in that: The weft insertion assembly (1) includes a base (11), a nozzle (12) is fixedly installed at the middle of the upper end of the base (11), a rotating groove (21) is opened in the middle of the nozzle (12), a rotating ring (24) is rotatably installed in the middle of the rotating groove (21), a toothed ring (25) is fixedly installed on the outer side of one end of the rotating ring (24), and a limiting plate (29) is fixedly installed on one end of the rotating ring (24) by screws. A through hole (2) is opened in the middle of the nozzle (12), the rotating ring (24) and the limiting plate (29), and a plurality of limiting grooves (26) are evenly opened on the outer side of the middle of one end of the rotating ring (24). Each of the multiple limiting grooves (26) is slidably engaged with a slide rod (27) in the middle. Each of the slide rods (27) is fixedly mounted with a baffle (28) at one end. Multiple limiting grooves (30) are evenly opened around the outer side of the middle of the limiting plate (29). The other ends of the multiple slide rods (27) are slidably engaged with the middle of the limiting grooves (30). A drive motor (22) is fixedly mounted on one side of the upper end of the nozzle (12). A gear (23) is fixedly mounted on the output end of the drive motor (22). The rotating groove (21) is installed through and mounted on one side of the rotating groove (21) and meshes with the gear ring (25).

2. The weft insertion mechanism of the water jet loom according to claim 1, characterized in that: A water tank (15) is fixedly installed in the middle of one side of the upper end of the base (11), and a pump body (16) is fixedly connected to one end of the water tank (15).

3. The weft insertion mechanism of the water jet loom according to claim 2, characterized in that: A connecting water pipe (18) is fixedly connected to the other side of the water tank (15), and one end of the connecting water pipe (18) is fixedly connected to the nozzle (12).

4. The weft insertion mechanism of the water jet loom according to claim 2, characterized in that: A water injection pipe (17) is fixedly connected to one side of the upper end of the water tank (15).

5. The weft insertion mechanism of the water jet loom according to claim 4, characterized in that: A shaped reed (19) is fixedly installed on one side of the upper end of the base (11).

6. The weft insertion mechanism of the water jet loom according to claim 5, characterized in that: A yarn guide (13) is fixedly installed on the other side of the upper middle part of the base (11), and the yarn guide (13) is located on one side of the nozzle (12).

7. The weft insertion mechanism of the water jet loom according to claim 6, characterized in that: A fixed-length weft feeder (14) is fixedly installed on the other side of the upper end of the base (11).

8. The weft insertion mechanism of the water jet loom according to claim 7, characterized in that: The center points of the fixed-length weft feeder (14), yarn guide (13), nozzle (12), and shaped reed (19) are located on the same horizontal line.

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