Yarn suction gun capable of automatically adjusting suction force

Abstract

The utility model belongs to the technical field of spinning instruments, and relates to a thread suction gun capable of automatically adjusting suction force, which comprises a suction gun tube arranged on a thread suction gun main body, a gas flow adjusting valve, a PLC (Programmable Logic Controller) and a temperature sensor, the gas flow regulating valve and the temperature sensor are both located on the thread suction gun body, and the temperature sensor is used for detecting the temperature of the hot roller. The PLC is used for adjusting the opening degree of the gas flow adjusting valve according to the hot roller temperature detected by the temperature sensor, and then the suction force of the tail end of the suction gun pipe is changed. According to the suction gun capable of automatically adjusting the suction force, the pressure of different gears is accurately and automatically adjusted, the situation that the suction force fluctuates due to manual operation or wire hanging fails due to misoperation is avoided, operators do not need to be trained, the suction gun is simple and practical, time and labor are really saved, and the production cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to spinning appliance technical field, concretely relates to a self -regulating suction force's suction gun. TECHNICAL BACKGROUND

[0002] In the production process of polyester filament, the drafting process has important influence on subsequent production. The various drafting rollers (hot rollers) in the drafting device are set to different temperatures and speeds according to production needs, and in the yarn-attaching and head-forming stage of the drafting process, in order to ensure that the tows can be smoothly drafted, the staff need to adjust the suction force of the suction gun according to the drafting rollers of different speeds, so that the yarn-attaching speed of the suction gun matches the running speed of the drafting rollers.

[0003] At present, in the actual production process, some operators manually adjust the opening degree of the suction gun switch according to their own feelings, and this method lacks scientific and quantitative basis, so that the suction force of the suction gun is difficult to accurately control, resulting in a significant decrease in the success rate of yarn-attaching and head-forming, and frequent production interruptions caused by yarn-attaching failure. In order to achieve the ideal yarn-attaching effect, the staff have to invest a lot of effort in repeated debugging, and at the same time, a large amount of yarn-attaching failure produces more waste yarn, resulting in increased production cost.

[0004] Some suction guns similar to the patent CN206645654U are also used, which allow the operator to select the required suction force to meet the yarn-attaching requirements by setting a scale switch. However, in actual use, this method also has problems: the suction force of the suction gun fluctuates during yarn-attaching and head-forming, or personnel operation errors can also cause yarn-attaching failure, and personnel training is required for the suction force corresponding to different scales and the suction force corresponding to different production requirements, which consumes time and resources.

[0005] In summary, the current technical means for adjusting the suction force of the suction gun all have deficiencies, and it is particularly urgent to develop a suction gun that can automatically adjust the suction force. CONTENT OF THE UTILITY MODEL

[0006] The utility model aims at solving the problems in the prior art and provides a suction gun that can automatically adjust the suction force.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0008] A suction gun that can automatically adjust the suction force, comprising a suction gun tube provided on the main body of the suction gun, a gas flow regulating valve, a PLC controller and a temperature sensor.

[0009] The gas flow regulating valve and the temperature sensor are both located on the main body of the suction gun, and the temperature sensor is used to detect the temperature of the hot roller.

[0010] The suction force at the end of the suction tube of the suction gun is generated by the negative pressure formed at the suction nozzle due to the rapid flow of compressed air in the suction tube channel, and the size of the negative pressure corresponds to the size of the suction force at the suction nozzle. Since the gas flow regulating valve can control the flow size of the compressed air, adjusting the opening of the gas flow regulating valve can change the suction force at the end of the suction tube.

[0011] The PLC controller is used to adjust the opening of the gas flow regulating valve according to the hot roller temperature detected by the temperature sensor, thereby changing the suction force at the end of the suction tube.

[0012] As a preferred technical solution:

[0013] The temperature of the hot roller is divided into n grades, which are T1, T2,..., Tn, respectively. n ;

[0014] The opening of the gas flow regulating valve is divided into n grades, which are A1, A2,..., An, respectively. n ;

[0015] When the temperature sensor detects that the temperature of the hot roller is T i , the PLC controller adjusts the opening of the gas flow regulating valve to A i and keeps the current gear unchanged, i=1,...,n.

[0016] As described above, the suction gun for autonomously adjusting the suction force, n=3; T1 is 0-100℃, T2 is 110-160℃, and T3 is 190-260℃.

[0017] The suction force at the end of the suction tube corresponding to the A1, A2 and A3 gears is 0.2MPa, 0.8MPa and 1.0-1.2MPa, respectively.

[0018] As described above, the suction gun for autonomously adjusting the suction force further comprises a compressed air inlet pipeline and a compressed air outlet pipeline connected with the suction gun body, and the compressed air inlet pipeline is located below the compressed air outlet pipeline.

[0019] As described above, the suction gun for autonomously adjusting the suction force further comprises a compressed air valve arranged on the compressed air inlet pipeline.

[0020] As described above, the suction gun for autonomously adjusting the suction force, the suction tube and the temperature sensor are located on the front side of the suction gun body, and the temperature sensor is located below the suction tube.

[0021] As described above, the suction gun for autonomously adjusting the suction force, the gas flow regulating valve is a solenoid valve.

[0022] Beneficial effects:

[0023] The utility model discloses a kind of suction guns of self-regulating suction, by accurate, self-regulating pressure of different gears, avoid the situation that the failure of hanging silk caused by suction fluctuation or operation failure due to manual operation, and without training to operator, simple, practical, truly reach time-saving and labor-saving, reduce production cost. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 For the structure schematic diagram of a kind of self-regulating suction suction gun of the utility model;

[0025] Wherein, 1-suction gun pipe, 2-temperature sensor, 3-suction gun main body, 4-gas flow regulating valve, 5-press air valve, 6-press air outlet pipeline, 7-press air inlet pipeline. DETAILED DESCRIPTION

[0026] The technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0027] A kind of self-regulating suction suction gun, as Figure 1 As shown, including suction gun main body 3, suction gun pipe 1, gas flow regulating valve 4, PLC controller, temperature sensor 2, press air inlet pipeline 7, press air outlet pipeline 6 and press air valve 5;

[0028] Suction gun pipe 1 and temperature sensor 2 are located at the front side of suction gun main body 3, and temperature sensor 2 is located below suction gun pipe 1;

[0029] Gas flow regulating valve 4 is located on suction gun main body 3, and gas flow regulating valve 4 is preferably solenoid valve;

[0030] Press air inlet pipeline 7 and press air outlet pipeline 6 are connected with suction gun main body 3, and press air inlet pipeline 7 is located below press air outlet pipeline 6;

[0031] Press air valve 5 is arranged on press air inlet pipeline 7;

[0032] Temperature sensor 2 is used to detect the temperature of hot roller, and the temperature of hot roller is divided into n grades, respectively T1, T2,..., T n ;

[0033] The opening of gas flow regulating valve 4 is divided into n grades, respectively A1, A2,..., A n , different gears can produce different suction at the end of suction gun pipe 1;

[0034] When the temperature sensor 2 detects that the temperature of the hot roller is T i , the PLC controller adjusts the opening of the gas flow regulating valve 4 to A i and keeps the current gear unchanged, i = 1,... n.

[0035] For example, specifically, T1 is 0-100℃, T2 is 110-160℃, and T3 is 190-260℃; when the temperature sensor 2 detects that the temperature of the hot roller is 0-100℃, the PLC controller adjusts the opening of the gas flow regulating valve 4 to A1 gear, so that the suction force at the end of the suction gun pipe 1 is P1 = 0.2MPa; when the temperature sensor 2 detects that the temperature of the hot roller is 110-160℃, the PLC controller adjusts the opening of the gas flow regulating valve 4 to A2 gear, so that the suction force at the end of the suction gun pipe 1 is P2 = 0.8MPa; when the temperature sensor 2 detects that the temperature of the hot roller is 190-260℃, the PLC controller adjusts the opening of the gas flow regulating valve 4 to A3 gear, so that the suction force at the end of the suction gun pipe 1 is P3 = 1.0-1.2MPa.

Claims

1. A self-adjusting suction force of a suction gun, comprising a suction gun tube (1) provided on a suction gun body (3), characterized in that, The gas flow regulating valve (4), the PLC controller, and the temperature sensor (2) are also included. The gas flow regulating valve (4) and the temperature sensor (2) are both located on the suction gun body (3), and the temperature sensor (2) is used to detect the temperature of the hot roller. The PLC controller is used to adjust the opening of the gas flow regulating valve (4) according to the temperature of the hot roller detected by the temperature sensor (2), thereby changing the suction force at the end of the suction gun tube (1).

2. The suctioning gun capable of autonomously adjusting suction force according to claim 1, wherein, The temperature of the hot roller is divided into n grades, which are T1, T2,... Tn, respectively. n ; The opening degree of the gas flow regulating valve (4) is divided into n grades, respectively A1, A2,... A n ; When the temperature sensor (2) detects that the temperature of the hot roller is T i , the PLC controller adjusts the opening of the gas flow regulating valve (4) to A i and keeps the current gear unchanged, i = 1,... n.

3. The self-adjusting suction force laryngeal suctioning gun according to claim 2, wherein, n=3; T1 is 0-100℃, T2 is 110-160℃, and T3 is 190-260℃. The suction forces at the end of the suction gun tube (1) corresponding to A1, A2, and A3 are 0.2MPa, 0.8MPa, and 1.0-1.2MPa, respectively.

4. The suction laryngoscope of claim 1, wherein, The compressed air inlet pipeline (7) and the compressed air outlet pipeline (6) are connected to the suction gun body (3), and the compressed air inlet pipeline (7) is located below the compressed air outlet pipeline (6).

5. The self-adjusting suction force laryngeal suctioning gun according to claim 4, wherein, The compressed air valve (5) is arranged on the compressed air inlet pipeline (7).

6. The suction laryngoscope of claim 1, wherein, The suction gun tube (1) and the temperature sensor (2) are both located on the front side of the suction gun body (3), and the temperature sensor (2) is located below the suction gun tube (1).

7. The suction laryngoscope of claim 1, wherein, The gas flow regulating valve (4) is an electromagnetic valve.

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