Nozzle structure of water-jet loom

Abstract

The utility model discloses a water jet loom nozzle structure which comprises a nozzle body and a nozzle in threaded connection with the tail end of the nozzle body, the nozzle body comprises a yarn passing pipe and a water inlet pipe which are integrally formed and communicated with each other, one end of the yarn passing pipe is fixedly connected with a yarn guide piece, and the other end of the yarn passing pipe is fixedly connected with the nozzle. The end, close to the yarn guide part, of the inner wall of the yarn passing pipe is provided with a first internal thread, the end, close to the spray head, of the inner wall of the yarn passing pipe is provided with a second internal thread, the spray head is integrally in a hourglass shape, namely, the middle section of the spray head is provided with a waist part, and a cavity with openings in the two ends is formed in the spray head. A second external thread is arranged on the outer wall of one end, close to the yarn passing pipe, of the nozzle; on the basis of original threaded connection, the spray head is further fixed through the fixing strip, and when the spray head rotates to be disengaged, the fixing strip can prevent the spray head from moving towards the outer side.

Description

Technical Field

[0001] The utility model relates to the field of water jet looms, in particular to a nozzle structure of a water jet loom. Background Art

[0002] Water jet loom is a shuttleless loom that drives the weft yarn through the shed by the frictional traction force generated by the clean water jet. It is generally used to weave chemical fiber fabrics, such as glass fiber and hydrophobic synthetic fiber filament. The frictional traction of water jet weft insertion on the weft yarn is greater than that of air jet weft insertion, and the diffusion is small, which effectively overcomes the static electricity in weaving. The energy consumed by jetting the weft yarn here is less and the noise is low. It is currently a widely used shuttleless loom.

[0003] For example, a patent with authorization announcement number CN220492577U discloses a water jet loom that prevents water channel blockage, including a body, a water trough is opened on the inner wall of the bottom of the body, a bracket is fixedly installed on the top of the body, a water pump is fixedly installed on the top of the bracket, a water spray pipe is fixedly installed on the right side of the water pump, the bottom end of the water spray pipe passes through the inner wall of the top of the bracket and extends to below it, a water spray box is fixedly installed on the bottom of the water spray pipe, and a plurality of nozzles are fixedly installed on the bottom of the water spray box.

[0004] The above patent scrapes off the fine waste at the bottom of the scraper filter, and then the staff cleans the scraped waste, thereby preventing impurities in the wastewater, such as cellulose, sand, etc., from clogging the filter, resulting in reduced filtering effect and efficiency of the filter; however, the disadvantage of the above patent is that in the prior art, the nozzles of this type of water jet loom are mostly installed at the end of the nozzle by means of threads or other connection methods, and the fixing structure is single, and the subsequent nozzles may fall off or loosen due to rotation.

[0005] Therefore, it is necessary for us to improve such a structure to overcome the above-mentioned defects. Utility Model Content

[0006] The purpose of the utility model is to provide a nozzle structure of a water jet loom to solve the problems raised in the above background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] The nozzle structure of a water jet loom comprises a nozzle body and a nozzle threadedly connected to the end of the nozzle body, wherein the nozzle body comprises a yarn-running tube and a water inlet pipe which are integrally formed and interconnected, one end of the yarn-running tube is fixedly connected to a yarn guide, and the other end is fixedly connected to the nozzle, wherein a first internal thread is provided at an end of the inner wall of the yarn-running tube close to the yarn guide, and a second internal thread is provided at an end of the inner wall of the yarn-running tube close to the nozzle, and the nozzle is in an hourglass shape as a whole, that is, a waist is provided in the middle section of the nozzle, and a cavity with two ends opened is provided inside the nozzle; a second external thread is provided on the outer wall of the nozzle close to the yarn-running tube; the second internal thread and the second The external threads are meshed with each other, and the nozzle is connected to the yarn-guiding tube by the second internal thread and the second external thread being meshed with each other; part of the main body of the yarn guide is located inside the cavity of the nozzle; the yarn-guiding tube is provided with at least two ear plates on the outer wall of one end close to the nozzle, and the two ear plates are symmetrically arranged with each other, and at the same time, a first through hole is opened on the ear plate, and two fixing strips are axially symmetrically arranged on both sides of the two ear plates, and the two ends of the fixing strip are respectively provided with a second through hole and a first threaded hole, and the two ear plates are fixedly connected to the fixing strip through the through-hole fixing bolts, and the fixing bolts are threadedly connected to the second through hole, the first through hole and finally the first threaded hole in sequence.

[0009] Furthermore, the yarn guide component includes an integrally formed cylindrical connecting portion and a conical main body portion, wherein the interior of the connecting portion and the main body portion is provided with a conical inner cavity with left and right openings, wherein a first external thread is provided on the outer wall of the connecting portion, the first internal thread and the first external thread are meshed with each other, and the yarn guide component is threadedly connected to the nozzle body via the first internal thread and the first external thread.

[0010] Furthermore, a hexagonal head is provided at one end of the connecting portion away from the main body portion.

[0011] Furthermore, a plurality of spirally arranged guide plates are provided on the outer side wall of the main body, and the guide plates are used to guide the water flow entering the water inlet pipe into the nozzle in a spiral shape.

[0012] Furthermore, the inner diameter of the end of the yarn-traveling tube close to the nozzle is smaller than the inner diameter of the end of the yarn-traveling tube close to the nozzle.

[0013] Furthermore, an arc-shaped groove is provided in the middle of the inner side of the fixing strip, and the waist of the nozzle is clamped in the grooves of the two fixing strips.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The nozzle of the utility model is further fixed by a fixing strip on the basis of the original threaded connection. When the nozzle is rotated out, the fixing strip prevents the nozzle from moving outward. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a schematic diagram of the structure of the nozzle of a water jet loom.

[0017] Figure 2 It is a front view of the nozzle structure of the water jet loom.

[0018] Figure 3 It is a top view of the nozzle structure of the water jet loom.

[0019] Figure 4 It is a side view of the nozzle structure of a water jet loom.

[0020] Figure 5 for Figure 4 Sectional view along AA direction.

[0021] Figure 6 An exploded view of the water jet loom nozzle structure. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. The components of the embodiment of the utility model generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiment of the utility model provided in the drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents the selected embodiment of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0023] See also Figure 1-6 The water jet loom nozzle structure comprises a nozzle body 1 and a nozzle head 4 threadedly connected to the end of the nozzle body 1.

[0024] The nozzle body 1 includes a yarn feeding tube 101 and a water inlet pipe 2 which are integrally formed and interconnected.

[0025] One end of the yarn-traveling tube 101 is fixedly connected to the yarn-guide 3, and the other end is fixedly connected to the nozzle 4, wherein the inner wall of the yarn-traveling tube 101 near the yarn-guide 3 is provided with a first internal thread 103, and the inner wall of the yarn-traveling tube 101 near the nozzle 4 is provided with a second internal thread 102.

[0026] The yarn guide 3 includes an integrally formed cylindrical connecting portion 301 and a conical main body portion 302.

[0027] The connection part 301 and the main body part 302 are provided with a conical inner cavity with left and right openings, wherein the outer wall of the connection part 301 is provided with a first external thread 303, the first internal thread 103 and the first external thread 303 are meshed with each other, and the yarn guide 3 is threadedly connected to the nozzle body 1 through the first internal thread 103 and the first external thread 303.

[0028] At the same time, in order to facilitate the rotation of the yarn guide 3, a hexagonal head 304 is also provided at one end of the connecting portion 301 away from the main body 302;

[0029] At the same time, a plurality of spirally arranged guide plates 305 are also arranged on the outer wall of the main body 302, and the guide plates 305 are used to guide the water flow entering the water inlet pipe 2 into the nozzle 4 in a spiral shape;

[0030] At the same time, the inner diameter of the end of the yarn-running tube 101 close to the nozzle 4 is smaller than the inner diameter of the end close to the yarn-running tube 101; the nozzle 4 is in an hourglass shape as a whole, that is, a waist 401 is provided in the middle section of the nozzle 4, and a cavity with two ends opened is provided inside the nozzle 4; a second external thread 402 is provided on the outer wall of the end of the nozzle 4 close to the yarn-running tube 101; the second internal thread 102 is meshed with the second external thread 402, and the nozzle 4 is connected to the yarn-running tube 101 through the second internal thread 102 and the second external thread 402 being meshed with each other;

[0031] Meanwhile, part of the main body 302 of the yarn guide 3 is located inside the cavity of the nozzle 4;

[0032] In order to prevent the nozzle 4 from falling off due to the water flow, the yarn feeding tube 101 is provided with at least two ear plates 5 on the outer wall of one end close to the nozzle 4, and the two ear plates 5 are symmetrically arranged. At the same time, a first through hole 501 is opened on the ear plate 5, and two fixing strips 502 are axially symmetrically arranged on both sides of the two ear plates 5, and the two ends of the fixing strip 502 are respectively provided with a second through hole 504 and a first threaded hole 503.

[0033] The two ear plates 5 are fixedly connected to the fixing strip 502 by through-hole fixing bolts 505, and the fixing bolts 505 are threadedly connected to the second through-hole 504, the first through-hole 501 and finally the first threaded hole 503 in sequence;

[0034] At the same time, an arc-shaped slot 505 is provided in the middle of the inner side of the fixing strip 502, and the waist 401 of the nozzle 4 is stuck in the slot 505 of the two fixing strips 502 to prevent the nozzle from falling out.

[0035] When the utility model is used, when the weft yarn is pulled, the external water inlet pipe is fixedly connected to the water inlet pipe 2, and the guide plate 305 guides the water flow entering the water inlet pipe 2 into the nozzle 4 in a spiral shape, and the water flow passes through the yarn guide 3 and the weft yarn in the nozzle to pull.

[0036] In the description of the present utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "left", "right" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use, or the orientation or positional relationship commonly understood by those skilled in the art, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the equipment or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model. In addition, the terms "first", "second" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present utility model, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "connection" and the like should be understood in a broad sense, for example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

Claims

1. A water jet loom nozzle structure, comprising a nozzle body and a nozzle threadedly connected to the end of the nozzle body, characterized in that: The nozzle body comprises an integrally formed yarn-running tube and a water inlet pipe which are interconnected. One end of the yarn-running tube is fixedly connected to a yarn guide, and the other end is fixedly connected to a nozzle. A first internal thread is provided on an inner wall of the yarn-running tube at an end close to the yarn guide, and a second internal thread is provided on an inner wall of the yarn-running tube at an end close to the nozzle. The nozzle is hourglass-shaped as a whole, that is, a waist is provided in the middle section of the nozzle, and a cavity with two ends open is provided inside the nozzle. A second external thread is provided on an outer wall of the nozzle at an end close to the yarn-running tube. The second internal thread is meshed with the second external thread, and the nozzle is passed through the second internal thread. The thread and the second external thread are meshed with each other and connected to the yarn-guiding tube; part of the main body of the yarn-guiding member is located inside the cavity of the nozzle; the yarn-guiding tube is provided with at least two ear plates on the outer wall of one end close to the nozzle, and the two ear plates are symmetrically arranged with each other, and at the same time, a first through hole is opened on the ear plate, and two fixing strips are axially symmetrically arranged on both sides of the two ear plates, and the two ends of the fixing strip are respectively provided with a second through hole and a first threaded hole, and the two ear plates are fixedly connected to the fixing strip with through-hole fixing bolts, and the fixing bolts are threadedly connected to the second through hole, the first through hole and finally the first threaded hole in sequence.

2. The water jet loom nozzle structure according to claim 1, characterized in that: The yarn guide component includes an integrally formed cylindrical connecting portion and a conical main body portion, wherein the interior of the connecting portion and the main body portion is provided with a conical inner cavity with left and right openings, wherein a first external thread is provided on the outer side wall of the connecting portion, the first internal thread and the first external thread are meshed with each other, and the yarn guide component is threadedly connected to the nozzle body via the first internal thread and the first external thread.

3. The nozzle structure of a water jet loom according to claim 2, characterized in that: A hexagonal head is also arranged at one end of the connecting portion away from the main body portion.

4. The nozzle structure of a water jet loom according to claim 2, characterized in that: The outer wall of the main body is also provided with a plurality of spirally arranged guide plates, which are used to guide the water flow entering the water inlet pipe into the nozzle in a spiral shape.

5. The nozzle structure of a water jet loom according to claim 1, characterized in that: The inner diameter of the end of the yarn-traveling tube close to the nozzle is smaller than the inner diameter of the end of the yarn-traveling tube close to the nozzle.

6. The nozzle structure of a water jet loom according to claim 1, characterized in that: An arc-shaped clamping groove is provided in the middle of the inner side of the fixing strip, and the waist of the spray head is clamped in the clamping grooves of the two fixing strips.

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