Jet loom nozzle device for processing polyester-viscose fabric

Abstract

The utility model discloses an air jet loom nozzle device for processing polyester-viscose fabrics, which comprises a nozzle body, a spray head, a spiral yarn guide cavity and a cooling fan, a yarn inlet is arranged in an inner cavity of the upper end face of the nozzle body, the spray head is arranged on the lower end face of the nozzle body, and an air inlet pipe is arranged at the upper end of the right side of the nozzle body. A yarn outlet is formed in an inner cavity in the lower end of the nozzle, fixing rings are arranged at the upper end and the lower end of the outer surface of the nozzle body, and the cooling fan is arranged on the left side of the cooling cover. According to the jet loom nozzle device for processing the polyester-viscose fabric, more uniform and stable airflow transmission can be achieved through the spiral yarn guide cavity, when air in the high-pressure air cavity enters the spiral yarn guide cavity, the airflow can be limited by the structure of the spiral yarn guide cavity, the airflow can be more uniformly distributed at an outlet of the whole nozzle, and through the cooling fan, the cooling effect is better. Heat on the surface of the nozzle body is dissipated, the temperature of the nozzle body is effectively reduced, and overheating is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of air jet looms, in particular to an air jet loom nozzle device for processing polyester-viscose fabrics. Background Art

[0002] The air jet loom is a shuttleless loom that uses a jet of air to pull the weft yarn through the shed. Its working principle is to use air as the weft insertion medium, and the ejected compressed air flow produces friction traction on the weft yarn, bringing the weft yarn through the shed, and achieving the purpose of weft insertion through the jet generated by the air jet.

[0003] For example, the patent document with application number 202222190385.5 discloses a high-efficiency nozzle for an air jet loom, including an air jet loom body, a groove and a through groove are respectively provided in the air jet loom body, the groove is arranged outside the through groove, the inner bottom wall of the groove is provided with a second magnetic strip, a cover plate is provided on the top of the air jet loom body, a bottom plate is provided at the bottom of the cover plate, a first magnetic strip is provided at the bottom of the bottom plate, the cover plate is opposite to the groove, and the first magnetic strip extends into the groove. The utility model can fix the cover plate and the nozzle body to the surface of the air jet loom by providing the magnetic attraction between the first magnetic strip and the second magnetic strip, and the plugging action of the plug rod on the bottom plate, so that the nozzle body is easy to install and the stability of the nozzle body can be improved, so as to avoid the phenomenon of accidental loosening of the nozzle body during use, avoid the need to install the nozzle body again in the air jet loom body, and improve the efficiency of the nozzle body during use.

[0004] For similar nozzles, when the airflow passes through a narrow channel or encounters sudden flow conditions, turbulence and eddies will be generated, causing the airflow to easily form a rotating and chaotic flow inside the nozzle, making the airflow distribution uneven, thus affecting the weft yarn effect, and during long-term operation, heat will accumulate inside the nozzle, causing the temperature to rise, which in turn affects the performance of the nozzle.

[0005] Therefore, in view of this, the existing structural deficiencies are studied and improved, and a jet loom nozzle device for processing polyester-viscose fabrics is proposed. Utility Model Content

[0006] The utility model aims to provide a nozzle device for an air jet loom for processing polyester-viscose fabrics. When the airflow passes through a narrow channel or encounters a sudden flow condition, turbulence and eddy currents will be generated, causing the airflow to easily form a rotating and chaotic flow inside the nozzle, making the airflow distribution uneven, thereby affecting the weft yarn effect, and during long-term operation, heat will accumulate inside the nozzle, causing the temperature to rise, thereby affecting the performance of the nozzle.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a nozzle device for an air jet loom for processing polyester-viscose fabrics, comprising a nozzle body, a nozzle, a spiral yarn guide cavity and a cooling fan, the inner cavity of the upper end surface of the nozzle body is provided with a yarn inlet, the nozzle is arranged on the lower end surface of the nozzle body, the lower end of the yarn inlet is provided with a high-pressure air cavity, the upper end of the right side of the nozzle body is provided with an air inlet pipe, the spiral yarn guide cavity is arranged at the lower end of the high-pressure air cavity, the inner cavity of the lower end of the nozzle head is provided with a yarn outlet, the upper and lower ends of the outer surface of the nozzle body are provided with fixing rings, a cooling hood is provided between two groups of the fixing rings, the cooling fan is provided on the left side of the cooling hood, and a cooling port is opened on the right side of the cooling hood.

[0008] Furthermore, a flow cavity is provided between the nozzle body and the heat dissipation cover, and two ends of the heat dissipation cover are respectively connected to two sets of fixing rings.

[0009] Furthermore, the lower end of the yarn inlet is connected to the upper end of the high-pressure air cavity, and the air inlet pipe is connected to the high-pressure air cavity by sequentially penetrating the heat dissipation cover and the nozzle body.

[0010] Furthermore, the upper end of the spiral yarn guide cavity is connected to the lower end of the high-pressure air cavity, and one end of the spiral yarn guide cavity away from the high-pressure air cavity is connected to the yarn outlet.

[0011] Furthermore, the cavity of the spiral yarn guide cavity is in a spiral structure, and the shapes of the spiral yarn guide cavity and the nozzle are gradually narrowed from top to bottom to form a funnel shape.

[0012] Furthermore, the circulation cavity is communicated with the heat dissipation fan and the heat dissipation port respectively, and the diameters of the heat dissipation fan and the heat dissipation port are equal.

[0013] Compared with the prior art, the utility model has the following beneficial effects: more uniform and stable airflow transmission can be achieved through the spiral yarn guide cavity. When the gas in the high-pressure air cavity enters the spiral yarn guide cavity, the airflow will be restricted by the structure of the spiral yarn guide cavity, so that the airflow can be more evenly distributed at the outlet of the entire nozzle. The heat on the surface of the nozzle body can be dissipated through the heat dissipation fan, effectively reducing the temperature of the nozzle body and preventing overheating. The specific contents are as follows:

[0014] A nozzle body, a yarn inlet, a nozzle, a high-pressure air cavity, a spiral yarn guide cavity and an air inlet pipe are provided. The spiral yarn guide cavity is connected to the high-pressure air cavity. The gas pressure in the high-pressure air cavity will be transmitted to the nozzle outlet through the spiral yarn guide cavity. Since the interior of the spiral yarn guide cavity is designed as a spiral structure, the airflow will be subjected to balanced pressure during the transmission process, thereby avoiding uneven distribution of the airflow, so that the airflow will be forced to flow along a spiral path when flowing through the spiral yarn guide cavity, which can effectively reduce the turbulence and eddy current of the airflow, thereby making the airflow more evenly distributed in the entire yarn guide cavity, thereby forming a jet airflow from the yarn outlet, realizing friction traction on the weft yarn, and helping the weft yarn to smoothly pass through the shuttle mouth.

[0015] A fixing ring, a heat dissipation cover, a circulation cavity, a heat dissipation fan and a heat dissipation port are provided. The heat dissipation cover is wrapped around the outer surface of the nozzle body by two sets of fixing rings, and a circulation cavity is formed between the heat dissipation cover and the nozzle body. The circulation cavity is a space formed by the heat dissipation cover surrounding the column of the nozzle body. The wind force of the heat dissipation fan is guided to the outer surface of the nozzle body through the channel in the circulation cavity, and the outer surface of the nozzle body in the circulation cavity is ventilated. After passing through its surface, the heat on the outer surface of the nozzle body is carried along the channel of the circulation cavity through the ventilation effect in the circulation cavity, and finally flows to the heat dissipation port, so that the heat is quickly dissipated, the stable temperature of the nozzle body is maintained, and equipment damage or reduced working efficiency due to overheating is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional structural schematic diagram of a nozzle device of an air jet loom for processing polyester-viscose fabrics according to the utility model;

[0017] Figure 2 This is a schematic diagram of the front cross-section structure of a nozzle device of an air jet loom for processing polyester-viscose fabrics according to the utility model;

[0018] Figure 3 It is a three-dimensional structural schematic diagram of a nozzle body of a nozzle device of an air jet loom for processing polyester-viscose fabrics according to the utility model;

[0019] Figure 4 The utility model is a nozzle device of an air jet loom for processing polyester and viscose fabrics. Figure 2 Schematic diagram of the local enlarged structure at A in the figure.

[0020] In the figure: 1. nozzle body; 2. nozzle; 3. yarn inlet; 4. high-pressure air cavity; 5. air inlet pipe; 6. spiral yarn guide cavity; 7. fixing ring; 8. yarn outlet; 9. heat dissipation cover; 91. circulation cavity; 10. heat dissipation fan; 11. heat dissipation port. DETAILED DESCRIPTION

[0021] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0022] like Figures 1 to 4 As shown, a jet loom nozzle device for processing polyester-viscose fabrics comprises a nozzle body 1, a nozzle 2, a spiral yarn guide cavity 6 and a heat dissipation fan 10. The inner cavity of the upper end surface of the nozzle body 1 is provided with a yarn inlet 3. The nozzle body 1 is the main body of the jet loom nozzle. The yarn is introduced through the yarn inlet 3. The weft yarn enters through the yarn inlet 3. The lower end of the yarn inlet 3 is provided with a high-pressure air cavity 4. The high-pressure air cavity 4 is provided with gas and weft yarn. The lower end of the yarn inlet 4 is connected to the upper end of the high-pressure air cavity 4. The upper end of the right side of the nozzle body 1 is provided with an air inlet pipe 5. The air inlet pipe 5 is connected to the high-pressure air cavity 4 by sequentially penetrating the heat dissipation cover 9 and the nozzle body 1. The air inlet pipe 5 is connected to the air source to introduce air into the high-pressure air cavity 4 to ensure that the gas in the high-pressure air cavity 4 is sufficient and stable.

[0023] The spiral yarn guide cavity 6 is arranged at the lower end of the high-pressure air cavity 4, and the cavity body of the spiral yarn guide cavity 6 is in a spiral structure. The upper end of the spiral yarn guide cavity 6 is connected to the lower end of the high-pressure air cavity 4, and the end of the spiral yarn guide cavity 6 away from the high-pressure air cavity 4 is connected to the yarn outlet 8. The gas pressure and the weft yarn in the high-pressure air cavity 4 will be transmitted to the yarn outlet 8 through the spiral yarn guide cavity 6. Since the interior of the spiral yarn guide cavity 6 is designed as a spiral structure, the airflow will be subjected to balanced pressure during the transmission process, thereby avoiding uneven distribution of the airflow. The shapes of the spiral yarn guide cavity 6 and the nozzle 2 are gradually narrowed from top to bottom into a funnel shape. The shapes of the spiral yarn guide cavity 6 and the nozzle 2 are gradually narrowed into a funnel shape, which helps the yarn to maintain direction during the guiding process. The nozzle 2 is arranged on the lower end surface of the nozzle body 1, and the inner cavity at the lower end of the nozzle 2 is provided with a yarn outlet 8. Under the action of the airflow, the yarn is sprayed out from the yarn outlet 8 in the nozzle 2;

[0024] The upper and lower ends of the outer surface of the nozzle body 1 are provided with fixing rings 7. The two ends of the heat dissipation cover 9 are respectively connected to the two groups of fixing rings 7 to fix the heat dissipation cover 9, maintain the stability of the heat dissipation cover 9, and avoid shaking or displacement during operation. A heat dissipation cover 9 is arranged between the two groups of fixing rings 7 to gather the wind of the heat dissipation fan 10. The heat dissipation fan 10 is arranged on the left side of the heat dissipation cover 9. Through the operation of the heat dissipation fan 10, the heat generated by the nozzle body 1 is taken away, the heat dissipation effect is accelerated, and the normal working temperature of the nozzle is maintained. A heat dissipation port 11 is opened on the right side of the heat dissipation cover 9. The diameter of the heat dissipation fan 10 and the heat dissipation port 11 are equal. The heat dissipation port 11 is used to discharge the heat taken away by the heat dissipation fan 10, maintain ventilation and heat dissipation of the surrounding environment of the nozzle, and avoid heat accumulation. A flow cavity 91 is opened between the nozzle body 1 and the heat dissipation cover 9. The flow cavity 91 is connected with the heat dissipation fan 10 and the heat dissipation port 11 respectively. The flow cavity 91 is formed by the heat dissipation cover 9 around the column of the nozzle body 1. The wind force of the heat dissipation fan 10 is guided to the outer surface of the nozzle body 1 through the channel in the flow cavity 91.

[0025] In summary, if Figures 1 to 4 As shown, in the jet loom nozzle device for processing polyester-viscose fabrics, the yarn inlet 3 in the nozzle body 1 guides the weft yarn to enter, and is connected to the high-pressure air cavity 4 to guide the weft yarn into its inner cavity, and the air inlet pipe 5 is connected to the external high-pressure air source to transport the gas to the high-pressure air cavity 4, and then the weft yarn is controlled and sprayed through the flow of gas, and then the weft yarn is sent into the spiral yarn guide cavity 6 through the gas. Through the spiral structure design, the airflow is subjected to a balanced pressure during the transmission process, and the airflow is forced to flow along the spiral path when flowing through the spiral yarn guide cavity 6, reducing the turbulence and eddy current of the airflow, so that the airflow is evenly distributed in the entire yarn guide cavity. The nozzle body 1 is wrapped with the heat dissipation cover 9 between the two sets of fixing rings 7, and a circulation cavity 91 for air flow is formed therebetween. The motor of the heat dissipation fan 10 transmits current to the heat dissipation fan 10 by connecting the current, thereby driving the blades to rotate, generating airflow, which is guided to the outer surface of the nozzle body 1 through the channel in the circulation cavity 91, and then discharged through the heat dissipation port 11 after passing through the outer surface, thereby achieving the effect of heat dissipation.

Claims

1. A nozzle device for an air jet loom for processing polyester-viscose fabrics, comprising a nozzle body (1), a nozzle (2), a spiral yarn guide cavity (6) and a cooling fan (10), characterized in that: The inner cavity of the upper end surface of the nozzle body (1) is provided with a yarn inlet (3), the nozzle (2) is arranged on the lower end surface of the nozzle body (1), the lower end of the yarn inlet (3) is provided with a high-pressure air cavity (4), the upper end of the right side of the nozzle body (1) is provided with an air inlet pipe (5), the spiral yarn guide cavity (6) is arranged at the lower end of the high-pressure air cavity (4), the inner cavity of the lower end of the nozzle head (2) is provided with a yarn outlet (8), the upper and lower ends of the outer surface of the nozzle body (1) are provided with fixing rings (7), a heat dissipation cover (9) is provided between two groups of the fixing rings (7), the heat dissipation fan (10) is arranged on the left side of the heat dissipation cover (9), and a heat dissipation port (11) is opened on the right side of the heat dissipation cover (9).

2. The nozzle device of an air jet loom for processing polyester-viscose fabrics according to claim 1, characterized in that: A flow cavity (91) is provided between the nozzle body (1) and the heat dissipation cover (9), and two ends of the heat dissipation cover (9) are respectively connected to two sets of fixing rings (7).

3. The nozzle device of an air jet loom for processing polyester-viscose fabrics according to claim 2, characterized in that: The lower end of the yarn inlet (3) is connected to the upper end of the high-pressure air cavity (4), and the air inlet pipe (5) is connected to the high-pressure air cavity (4) by sequentially penetrating the heat dissipation cover (9) and the nozzle body (1).

4. The nozzle device of an air jet loom for processing polyester-viscose fabrics according to claim 1, characterized in that: The upper end of the spiral yarn guide cavity (6) is connected to the lower end of the high-pressure air cavity (4), and the end of the spiral yarn guide cavity (6) away from the high-pressure air cavity (4) is connected to the yarn outlet (8).

5. The nozzle device of an air jet loom for processing polyester-viscose fabrics according to claim 3, characterized in that: The cavity of the spiral yarn guide cavity (6) is in a spiral structure, and the shapes of the spiral yarn guide cavity (6) and the nozzle (2) are gradually narrowed from top to bottom to form a funnel shape.

6. The nozzle device of an air jet loom for processing polyester-viscose fabrics according to claim 2, characterized in that: The circulation cavity (91) is respectively communicated with the heat dissipation fan (10) and the heat dissipation port (11); the diameters of the heat dissipation fan (10) and the heat dissipation port (11) are equal.

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