Combing down suction negative pressure dynamic balance air duct structure

Abstract

The utility model discloses a combing down suction negative pressure dynamic balance air duct structure, and particularly relates to the technical field of textile equipment, the combing down suction negative pressure dynamic balance air duct structure comprises an air duct air conveying pipe, a main air duct, a flexible connecting pipe and a branch air duct, a fan is installed at the right end of the air duct air conveying pipe, the main air duct is installed on the left side of the air duct air conveying pipe, and the flexible connecting pipe is installed on the left side of the main air duct; the branch air duct is mounted at the left end of the flexible connecting pipe; down suction connecting pipes are arranged at two ends of the left side of the branch air duct; after the pressure sensors are mounted at key positions in the main air duct and the branch air ducts, pressure parameters of airflow are monitored in real time, data of the sensors are fed back to the control system, and when it is monitored that negative pressure or airflow in the air ducts is unbalanced, the total air volume and the negative pressure in the air ducts can be changed by adjusting the rotating speed of the fan, so that the air volume is changed. The opening degree of the valves in the air channels is adjusted, the distribution proportion of airflow in the air channels is changed, and the negative pressure and the down suction effect of the air channels are kept consistent.

Description

TECHNICAL FIELD

[0001] The utility model relates to textile equipment technical field more specifically, the utility model relates to the combing velvet negative pressure dynamic balance air duct structure. BACKGROUND

[0002] In the textile industry, combing is an important process in the spinning process, its purpose is to exclude shorter fibers, remove kink particles, neps, fuzz, impurities and dust in the fiber, etc., improve the neatness, straightness and cleanliness of the fiber, to produce high quality yarn, the air duct system forms a negative pressure environment in the air duct through the operation of the fan and other equipment. The suction force generated by this negative pressure can suck the lint, short fibers and other impurities generated during the combing process from the combing area, prevent the lint from flying around, keep the working environment clean, and also avoid the lint from winding around the parts of the combing machine, affect the normal operation of the combing machine:

[0003] The existing combing air duct, due to the fluctuation of the fiber feed amount when entering the combing machine, the excessive fiber amount in the local area will cause great resistance to the airflow, reduce the airflow speed in the air duct of the area, and reduce the negative pressure, while the area with less fiber amount, the airflow is relatively smooth, and the negative pressure is relatively large, resulting in unbalanced negative pressure and airflow in the air duct, which will cause poor lint suction effect in some areas, and the lint in some areas cannot be effectively sucked away, which will easily cause the lint to accumulate in the local area, and further cause the air duct to be blocked. Regular cleaning not only increases the maintenance cost and downtime, but also causes damage to the air duct and equipment;

[0004] Therefore, the combing lint negative pressure dynamic balance air duct structure is proposed to solve the above problems. Utility model content

[0005] In order to overcome the above defects of the prior art, the utility model provides a combing lint negative pressure dynamic balance air duct structure to solve the problems in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: the combing lint negative pressure dynamic balance air duct structure, including the air duct wind pipe, the main air duct, the flexible connecting pipe and the branch air duct, the left end of the air duct wind pipe is installed with the first electric regulating valve, the right end of the air duct wind pipe is installed with the fan, the output end of the fan is installed with the air inlet pipe, the main air duct is installed on the left side of the air duct wind pipe, the front end face of the main air duct is provided with the observation window, the left side of the upper end of the main air duct is installed with the first pressure sensor;

[0007] The flexible connecting pipe is installed on the left side of the main air duct, the branch air duct is installed on the left end of the flexible connecting pipe, a second pressure sensor is installed on the right end of the branch air duct, and the left ends of the branch air duct are provided with two suction velvet connecting pipes, and the right sides of the two groups of suction velvet connecting pipes are provided with second electric regulating valves.

[0008] Preferably, the two ends of the flexible connecting pipe are connected with the main air duct and the flexible connecting pipe respectively, and the material of the flexible connecting pipe is PVC.

[0009] Preferably, the left end of the air duct air conveying pipe away from the fan is connected with the right end surface of the main air duct, and the air duct air conveying pipe is L-shaped.

[0010] Preferably, the branch air duct is Y-shaped, and the suction velvet connecting pipes are symmetrically arranged.

[0011] Preferably, the inner cavity of the main air duct is provided with a space for airflow, and the two ends of the main air duct are connected with the flexible connecting pipe and the air duct air conveying pipe respectively.

[0012] Preferably, the material of the observation window is glass, and the main air duct is cylindrical.

[0013] The technical effects and advantages of the present application are as follows:

[0014] 1. Compared with the prior art, the combing and suction velvet negative pressure dynamic balance air duct structure can monitor the pressure parameters of airflow in real time after installing pressure sensors at key positions in the main air duct and the branch air duct, feed back the sensor data to the control system, adjust the rotating speed of the fan when the negative pressure or airflow in the air duct is unbalanced, change the total air volume and negative pressure in the air duct, adjust the valve opening degree in the air duct, change the distribution ratio of airflow in each air duct, and keep the negative pressure and suction velvet effect of each air duct consistent. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole three-dimensional structure schematic view of the present application.

[0016] Figure 2 It is a main air duct sectional structure schematic view of the present application.

[0017] Figure 3 It is a main air duct sectional structure schematic view of the present application. Figure 1

[0018] Figure 4 It is a suction velvet connecting pipe sectional structure schematic view of the present application.

[0019] ​The attached diagram is labeled as follows: 1. Air duct; 101. First electric regulating valve; 2. Fan; 3. Air inlet pipe; 4. Main air duct; 5. Observation window; 6. First pressure sensor; 7. Flexible connecting pipe; 8. Branch air duct; 9. Second pressure sensor; 10. Wool suction connecting pipe; 11. Second electric regulating valve. Detailed Implementation

[0020] 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.

[0021] Example 1

[0022] As attached Figures 1 to 4 The combed lint suction negative pressure dynamic balance air duct structure shown includes an air duct 1, a main air duct 4, a flexible connecting pipe 7 and a branch air duct 8. A first electric regulating valve 101 is installed at the left end of the air duct 1, a fan 2 is installed at the right end of the air duct 1, an air inlet pipe 3 is installed at the output end of the fan 2, the main air duct 4 is installed on the left side of the air duct 1, an observation window 5 is opened on the front end face of the main air duct 4, and a first pressure sensor 6 is installed on the left side of the upper end of the main air duct 4.

[0023] The flexible connecting pipe 7 is installed on the left side of the main air duct 4, the branch air duct 8 is installed on the left end of the flexible connecting pipe 7, the right end of the branch air duct 8 is equipped with a second pressure sensor 9, both ends of the left side of the branch air duct 8 are provided with a lint-collecting connecting pipe 10, and the right side of both sets of lint-collecting connecting pipes 10 is equipped with a second electric regulating valve 11.

[0024] The wind channel conveying pipe 1 as the starting part of the wind channel system is a channel connecting the external environment and the subsequent wind channel structure, can introduce external air into the wind channel system, and provides air flow power basis for the lint suction process. The first electric regulating valve 101 installed at the left end can regulate the air volume entering the wind channel conveying pipe 1, thereby preliminarily controlling the total air flow of the entire wind channel system, and adapting to the lint suction demand under different production conditions. The first electric regulating valve 101 can accurately regulate the air flow in the wind channel conveying pipe 1 according to actual production needs. In the combing lint suction process, different production stages or process requirements can need different lint suction air volume. The first electric regulating valve 101 can be flexibly adjusted to ensure the stability and consistency of the lint suction effect. The fan 2 is the core power source of the wind channel system to generate negative pressure. When the fan 2 operates, the air in the wind channel is extracted to form a negative pressure environment in the wind channel, thereby generating suction force to suck the lint and other impurities generated in the combing process into the wind channel system to realize the lint suction function. The air inlet pipe 3 is a connecting component between the output end of the fan 2 and the main wind channel 4, plays a role of guiding the air extracted by the fan 2 to the main wind channel 4, ensures the smooth flow of air in the wind channel system, and reduces air flow loss and energy loss. The main wind channel 4 is the main channel of the wind channel system, concentrates the air flow introduced from the wind channel conveying pipe 1, and distributes the air flow to each branch wind channel 8. The observation window 5 opened at the front end face facilitates the operator to observe the air flow condition inside the main wind channel 4 at any time, whether there is lint accumulation or other abnormal conditions, so as to take corresponding maintenance measures in time to ensure the normal operation of the wind channel system. The operator can intuitively understand the working condition in the main wind channel 4 through the observation window 5, avoid the failure of the wind channel system, reduce downtime maintenance time, and improve production efficiency.

[0025] The first pressure sensor 6 monitors the pressure parameters in the main air duct 4 in real time and feeds back the data to the control system. The control system can determine whether the negative pressure in the main air duct 4 is within the normal range according to the pressure data, and whether the speed of the fan 2 or the opening of the first electric regulating valve 101 needs to be adjusted to achieve dynamic balance of the negative pressure of the air duct system. The flexible connecting pipe 7 can compensate for the displacement between the main air duct 4 and the branch air duct 8 due to installation errors, thermal expansion and contraction, or equipment vibration, etc. to avoid stress concentration and damage to the air duct system due to rigid connection. At the same time, the flexible connecting pipe 7 also has a certain damping effect, reducing the influence of vibration generated by the fan 2 during operation on the branch air duct 8, ensuring the stability and reliability of the air duct system. The branch air duct 8 guides the airflow distributed by the main air duct 4 to each lint suction point and is connected to the lint suction connecting pipe 10, serving as a connecting component between the branch air duct 8 and the lint suction port of the combing equipment. The negative pressure in the branch air duct 8 is transmitted to the lint suction equipment, enabling the lint suction equipment to effectively suck the lint and other impurities generated during the combing process into the air duct system, achieving the lint suction function. The air duct system can cover the lint suction needs of multiple combing equipment. The reasonable layout of the branch air duct 8 can ensure that each lint suction point can obtain sufficient negative pressure and air volume, improving the uniformity and comprehensiveness of the lint suction effect. The second pressure sensor 9 monitors the pressure of the branch air duct 8 in real time and feeds back the data to the control system. By comparing the pressure data of the main air duct 4 and the branch air duct 8, the control system can determine whether the negative pressure in the branch air duct 8 matches the main air duct 4 and whether the opening of the second electric regulating valve 11 needs to be adjusted to achieve dynamic balance of the negative pressure between the branch air ducts 8. The second electric regulating valve 11 is installed on the right side of the lint suction connecting pipe 10 and can accurately adjust the air volume of each lint suction connecting pipe 10 according to the actual lint suction demand. The requirements for air volume and negative pressure may be different at different combing equipment or lint suction points. The second electric regulating valve 11 can be flexibly adjusted to ensure that the lint suction effect of each lint suction point reaches the best state, further improving the dynamic balance performance of the air duct system.

[0026] Example 2

[0027] Based on the embodiment 1, the scheme in embodiment 1 is further refined and introduced in detail in combination with the specific working mode as follows: Figures 1 to 4 as shown in the following description:

[0028] As a preferred embodiment, the two ends of the flexible connecting pipe 7 are respectively connected with the main air duct 4 and the flexible connecting pipe 7, and the material of the flexible connecting pipe 7 is PVC; further, the PVC material has good flexibility and can withstand the relative displacement and deformation of the main air duct 4 and the branch air duct 8 caused by thermal expansion and contraction, equipment vibration and other factors to a certain extent, play a buffering and compensation role, protect the overall structural integrity of the air duct system, and reduce the risk of pipeline rupture or damage caused by stress concentration.

[0029] As a preferred embodiment, the end of the air duct air conveying pipe 1 away from the fan 2 is connected with the right end face of the main air duct 4, and the shape of the air duct air conveying pipe 1 is L-shaped; further, the L-shaped air duct air conveying pipe 1 can effectively guide the airflow to turn 90 degrees, so that the airflow output by the fan 2 can smoothly enter the main air duct 4 from the horizontal direction or other directions according to the design requirements.

[0030] As a preferred embodiment, the shape of the branch air duct 8 is Y-shaped, and the suction velvet connecting pipes 10 are symmetrically arranged; further, the Y-shaped branch air duct 8 can uniformly distribute the airflow from the main air duct 4 to two branch directions, so that the suction velvet connecting pipes 10 on both sides can obtain relatively balanced airflow, ensuring the uniformity of the negative pressure in the entire suction velvet area, thereby improving the consistency of the suction velvet effect.

[0031] As a preferred embodiment, the inner cavity of the main air duct 4 leaves a space for the airflow to pass through, and the two ends of the main air duct 4 are respectively connected with the flexible connecting pipe 7 and the air duct air conveying pipe 1; further, the space left in the inner cavity of the main air duct 4 provides a special and stable transmission channel for the airflow, ensuring that the airflow can flow smoothly in the main air duct 4, reducing the generation of airflow turbulence and vortex, thereby ensuring the airflow transmission efficiency and stability of the entire air duct system, providing continuous and stable negative pressure power for the suction velvet, and the connection with the flexible connecting pipe 7 and the air duct air conveying pipe 1 makes the entire air duct system form a complete whole, ensuring the closed circulation of the airflow in the system, avoiding airflow leakage, maintaining the negative pressure environment in the air duct, and improving the suction velvet effect.

[0032] As a preferred embodiment, the material of the observation window 5 is glass, and the shape of the main air duct 4 is cylindrical; further, glass has high transparency, which can enable the operator to clearly observe the airflow condition, velvet adsorption state and whether there is blockage and other problems in the main air duct 4, and the inner wall of the cylindrical main air duct 4 is smooth without obvious edges and corners, which can make the airflow flow more smoothly in the air duct.

[0033] The working process of the utility model is as follows: firstly, the fan 2 as core power source, when running, the air in the air duct is extracted, the negative pressure environment is formed inside the air duct, the suction power is generated, thereby providing power basis for the suction, the first electric regulating valve 101 of the left end of the air duct conveying pipe 1 preliminarily adjusts the air volume entering the air duct conveying pipe 1 according to actual production demand, controls the total air quantity of the whole air duct system, makes the lint and other impurities generated in the combing process be able to be sucked into the air duct system, the air duct conveying pipe 1 introduces the outside air, the fan 2 guides the extracted air to the main air duct 4 through the air inlet pipe 3, the observation window 5 opened in the front end face is convenient for the operator to observe the airflow condition inside the main air duct 4 at any time, whether there is lint accumulation or other abnormal conditions, the main air duct 4 again concentrates and distributes the airflow to each branch air duct 8, the branch air duct 8 guides the airflow to each suction point, the negative pressure is transmitted to the suction equipment through the suction connecting pipe 10, and the lint suction is realized;

[0034] The flexible connecting pipe 7 of PVC material has good flexibility, can bear the relative displacement and deformation of the main air duct 4 and the branch air duct 8 due to thermal expansion and cold shrink, equipment vibration and other factors to a certain extent, plays the buffering and compensation role, protects the connection between the main air duct 4 and the branch air duct 8, the first pressure sensor 6 and the second pressure sensor 9 respectively monitor the pressure parameters of the main air duct 4 and the branch air duct 8 in real time, and the data is fed back to the control system, the control system adjusts the opening of the first electric regulating valve 101 and the second electric regulating valve 11 and the rotating speed of the fan 2 according to these pressure data, to realize the negative pressure dynamic balance of the air duct system, ensures that each suction point can obtain appropriate negative pressure and air volume, guarantees the lint suction effect, the above is the working principle of the combing lint suction negative pressure dynamic balance air duct structure.

Claims

1. A combed lint suction negative pressure dynamic balance air duct structure, comprising an air duct supply pipe (1), a main air duct (4), a flexible connecting pipe (7), and branch air ducts (8), characterized in that: The left end of the air duct (1) is equipped with a first electric regulating valve (101), the right end of the air duct (1) is equipped with a fan (2), the output end of the fan (2) is equipped with an air inlet pipe (3), the main air duct (4) is installed on the left side of the air duct (1), the front end of the main air duct (4) is provided with an observation window (5), and the upper left side of the main air duct (4) is equipped with a first pressure sensor (6). The flexible connecting pipe (7) is installed on the left side of the main air duct (4), the branch air duct (8) is installed on the left end of the flexible connecting pipe (7), the right end of the branch air duct (8) is equipped with a second pressure sensor (9), both ends of the left side of the branch air duct (8) are provided with a lint-absorbing connecting pipe (10), and the right side of both sets of lint-absorbing connecting pipes (10) is equipped with a second electric regulating valve (11).

2. The combed lint-absorbing negative pressure dynamic balance air duct structure according to claim 1, characterized in that: The two ends of the flexible connecting pipe (7) are respectively connected to the main air duct (4) and the flexible connecting pipe (7), and the flexible connecting pipe (7) is made of PVC.

3. The combed lint-absorbing negative pressure dynamic balance air duct structure according to claim 2, characterized in that: The end of the air duct (1) away from the fan (2) is connected to the right end face of the main air duct (4), and the air duct (1) is L-shaped.

4. The combed lint-absorbing negative pressure dynamic balance air duct structure according to claim 1, characterized in that: The branch air duct (8) is Y-shaped, and the lint-absorbing connecting pipe (10) is symmetrically arranged.

5. The combed lint-absorbing negative pressure dynamic balance air duct structure according to claim 1, characterized in that: The inner cavity of the main air duct (4) has space for airflow to pass through, and the two ends of the main air duct (4) are respectively connected to the flexible connecting pipe (7) and the air duct delivery pipe (1).

6. The combed lint-absorbing negative pressure dynamic balance air duct structure according to claim 1, characterized in that: The observation window (5) is made of glass, and the main air duct (4) is cylindrical.

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