Air return device of rotor spinning machine

By designing a return air device for an air-jet spinning machine that includes a return air box, activated carbon plate, and vibrating plate, the problems of unrecoverable impurities in the exhaust gas and easy clogging of the filter plate are solved, achieving the purification of exhaust gas and the recycling of impurities, and simplifying maintenance.

CN224148250UActive Publication Date: 2026-04-21SUZHOU ZHENLUN BIOLOGICAL FIBER CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU ZHENLUN BIOLOGICAL FIBER CO LTD
Filing Date
2025-05-22
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing air-jet spinning machines' return air devices cannot effectively recover recyclable substances from exhaust gases, and the filter plates are prone to clogging, resulting in reduced filtration efficiency and requiring frequent cleaning.

Method used

A return air device for an air-jet spinning machine was designed, comprising a return air box, an activated carbon plate, a vibrating plate, a filter plate, and a motor. Waste gas is drawn in by a fan, filtered and purified by the activated carbon plate, and then the vibrating plate drives the filter plate to vibrate and shake off impurities. The collection box collects the impurities, achieving automatic sealing.

Benefits of technology

It achieves effective filtration and purification of waste gas and recycling of impurities, reducing pollution to the spinning workshop and simplifying the maintenance process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an air return device of an air spinning machine, which relates to the technical field of air spinning equipment and comprises an air return box, a control box is fixed at one end of the air return box, a discharge pipe is fixed at the upper end of the air return box, and an activated carbon plate is arranged on the upper side of one end of the air return box in a penetrating manner. Mounting blocks are fixed to the four corners of the upper end of the interior of the air return box, sliding rods are arranged at the upper ends of the mounting blocks in a penetrating mode, and vibrating plates are fixed to the lower ends of the sliding rods. The air return device of the rotor spinning machine has the advantages that the air return device of the rotor spinning machine can filter and purify waste gas, so that the exhausted waste gas cannot pollute a spinning workshop, and impurities and substances carried in the waste gas can be collected and are convenient to recycle; according to the air return device of the rotor spinning machine, when the collecting box is pulled out, the collecting box can be automatically sealed, and impurities and substances in the collecting box cannot float out.
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Description

Technical Field

[0001] This utility model relates to the field of air-jet spinning equipment technology, specifically to a return air device for an air-jet spinning machine. Background Technology

[0002] An air-jet spinning machine is a spinning device that uses high-speed airflow to twist fibers into yarn. The air return device of an air-jet spinning machine is an important component of the machine. Its main function is to recover and treat the dust- and impurity-containing air generated during the spinning process in order to improve the working environment of the spinning workshop.

[0003] However, the exhaust gas generated during the operation of air-jet spinning machines often contains some substances with recycling value. Existing treatment devices can only perform simple filtration of impurities and these substances in the exhaust gas, but cannot achieve effective recycling. As the machine continues to operate, impurities and substances accumulate on the filter plates, forming obstructions and gradually reducing the filtration efficiency. To maintain the normal operation of the machine, frequent cleaning of the filter plates is necessary, which is inconvenient. Therefore, we propose a return air device for air-jet spinning machines. Utility Model Content

[0004] The purpose of this invention is to provide a return air device for an air-jet spinning machine.

[0005] To address the problems mentioned in the background art, this utility model provides the following technical solution: a return air device for an air-jet spinning machine, comprising a return air box, a control box fixed to one end of the return air box, an exhaust pipe fixed to the upper end of the return air box, an activated carbon plate penetrating through the upper side of one end of the return air box, mounting blocks fixed at the four corners of the upper end of the return air box, a sliding rod penetrating through the upper end of the mounting block, a vibrating plate fixed to the lower end of the sliding rod, a filter plate penetrating through one end of the vibrating plate, multiple sets of first tension springs provided at the upper end of the vibrating plate, a guide plate fixed near the lower side of the return air box, a motor fixed to the other end of the return air box, a cam mounted at one end of the motor, a collection box and a fixing plate respectively provided at the lower end of one side of the return air box, a fan provided on one side of the return air box, a connecting pipe installed at one end of the return air box, an air suction box fixed to one end of the connecting pipe, bolts mounted at the four corners of the upper end of the air suction box, and a spinning machine provided at the lower end of the air suction box.

[0006] Preferably, the return air box is slidably connected to the activated carbon plate, and the vibrating plate is slidably connected to both the filter plate and the return air box.

[0007] Preferably, the mounting block is slidably connected to the slide rod, and the number of the first tension springs is four, with all the first tension springs located inside the return air box.

[0008] Preferably, a fixing block is provided through one end of the fixing plate, a sliding plate is installed on one side of the bottom of the collection box, a plurality of second tension springs are provided on one side of the sliding plate, sliding columns are fixed at both ends of the other side of the sliding plate, a connecting plate is fixed on one side of the sliding plate, a closing plate is fixed at the upper end of the connecting plate, and limit plates are fixed at both ends of the upper end of the closing plate.

[0009] Preferably, there are three second tension springs, and all of the second tension springs are located inside the collection box.

[0010] Preferably, the sliding column passes through the collection box and is slidably connected to the collection box, and the sealing plate is slidably connected to the collection box.

[0011] By adopting the above technical solution, the blower is started, which draws the waste gas generated by the spinning machine into the return air box. The waste gas entering the return air box rises and then passes through the filter plate and the first tension spring. The filter plate and the first tension spring filter and purify the impurities and substances in the waste gas. The filtered and purified waste gas is then discharged through the exhaust pipe. Then, by starting the motor, the motor intermittently impacts the vibrating plate through the cam. Under the elasticity of the first tension spring, the vibrating plate drives the filter plate to slide back and forth in the mounting block through the slide rod, thereby causing the filter plate to vibrate. This causes the impurities and substances filtered by the filter plate to fall to the bottom and be discharged into the collection box through the guide plate. This allows the airflow spinning machine's return air device to filter and purify the waste gas, ensuring that the discharged waste gas does not pollute the spinning workshop and that the impurities and substances carried in the waste gas can be collected for recycling.

[0012] Using the above technical solution, by sliding the fixing plate from the fixing block and then pulling out the collection box, the slide plate will slide to one side under the elasticity of the second tension spring during the pulling out process. This will drive the connecting plate to move together through the sliding column, and then the connecting plate will drive the sealing plate to move together. When the collection box is completely slid out of the return air box, the sealing plate will fit against the collection box, thereby sealing the inside of the collection box. This allows the return air device of the air-jet spinning machine to automatically seal the collection box when it is pulled out, preventing impurities and substances inside the collection box from floating out. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure in an embodiment of the present utility model;

[0014] Figure 2 This is a perspective view of an embodiment of the present utility model;

[0015] Figure 3 This is a schematic diagram of the internal structure of the return air box in an embodiment of this utility model;

[0016] Figure 4 This is a schematic diagram of the internal structure of the collection box in an embodiment of this utility model.

[0017] In the diagram: 1. Return air box; 2. Control box; 3. Discharge pipe; 4. Activated carbon plate; 5. Mounting block; 6. Slide rod; 7. Vibrating plate; 8. Filter plate; 9. First tension spring; 10. Guide plate; 11. Cam; 12. Motor; 13. Collection box; 14. Fan; 15. Connecting pipe; 16. Suction box; 17. Bolt; 18. Textile machine; 19. Fixing block; 20. Fixing plate; 21. Slide plate; 22. Second tension spring; 23. Slide column; 24. Connecting plate; 25. Sealing plate; 26. Limiting plate. Detailed Implementation

[0018] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0019] Example 1:

[0020] Please see Figure 1-4 This utility model provides a technical solution: a return air device for an air-jet spinning machine, including a return air box 1, a control box 2 fixed to one end of the return air box 1, an exhaust pipe 3 fixed to the upper end of the return air box 1, an activated carbon plate 4 penetrating through the upper side of one end of the return air box 1, mounting blocks 5 fixed at the four corners of the upper end of the return air box 1, a sliding rod 6 penetrating through the upper end of the mounting block 5, a vibrating plate 7 fixed to the lower end of the sliding rod 6, a filter plate 8 penetrating through one end of the vibrating plate 7, multiple sets of first tension springs 9 provided at the upper end of the vibrating plate 7, a guide plate 10 fixed near the lower side inside the return air box 1, and a motor 12 fixed to the other end of the return air box 1. A cam 11 is installed at one end of the motor 12. A collection box 13 and a fixing plate 20 are respectively installed at the lower end of one side of the return air box 1. A fan 14 is installed on one side of the return air box 1. A connecting pipe 15 is installed at one end of the return air box 1. An air suction box 16 is fixed at one end of the connecting pipe 15. Bolts 17 are installed at the four corners of the upper end of the air suction box 16. A spinning machine 18 is installed at the lower end of the air suction box 16. The return air box 1 is slidably connected to the activated carbon plate 4. The vibrating plate 7 is slidably connected to the filter plate 8 and the return air box 1. The mounting block 5 is slidably connected to the slide rod 6. There are four first tension springs 9, and all the first tension springs 9 are located inside the return air box 1.

[0021] Specifically, the fan 14 is started via the control box 2, causing it to draw the exhaust gas generated by the spinning machine 18 into the connecting pipe 15 through the suction box 16. The exhaust gas is then transmitted to the return air box 1 via the connecting pipe 15. Inside the return air box 1, the exhaust gas rises. As it passes through the filter plate 8, the filter plate removes impurities and other substances. The filtered exhaust gas then passes through the first tension spring 9, which adsorbs and purifies any odors. Finally, the purified exhaust gas is discharged through the discharge pipe 3. When the spinning machine 18 stops running, the motor 12 is started via the control box 2, causing the motor 12 to rotate the cam 11. When the protrusion on one side of the cam 11... When the vibrating plate 7 comes into contact with the filter plate 8, it impacts the vibrating plate 7, causing the vibrating plate 7 to slide the slide rod 6 inside the mounting block 5 and lower the filter plate 8. At the same time, the first tension spring 9 is stretched. When the protrusion on one side of the cam 11 is no longer in contact with the vibrating plate 7, the vibrating plate 7 will lift the filter plate 8 under the elasticity of the first tension spring 9. This process is repeated, causing the filter plate 8 to vibrate. The impurities and substances filtered by the filter plate 8 are shaken off and discharged into the collection box 13 through the guide plate 10. This allows the air return device of the air-jet spinning machine to filter and purify the exhaust gas, ensuring that the exhaust gas does not pollute the spinning workshop. It also allows the collection of impurities and substances carried in the exhaust gas for easy recycling.

[0022] Example 2:

[0023] Please see Figure 1-4 This utility model provides a technical solution: a return air device for an air-jet spinning machine, wherein a fixing block 19 is provided through one end of a fixing plate 20, a sliding plate 21 is installed on one side of the bottom of the collection box 13, a plurality of second tension springs 22 are provided on one side of the sliding plate 21, sliding columns 23 are fixed at both ends of the other side of the sliding plate 21, a connecting plate 24 is fixed on one side of the sliding plate 21, a closing plate 25 is fixed at the upper end of the connecting plate 24, and limit plates 26 are fixed at both ends of the upper end of the closing plate 25; the number of second tension springs 22 is three, and the second tension springs 22 are all located inside the collection box 13; the sliding columns 23 pass through the collection box 13, and the sliding columns 23 are slidably connected to the collection box 13, and the closing plate 25 is slidably connected to the collection box 13.

[0024] Specifically, after the collection box 13 has finished collecting impurities and materials, the fixing plate 20 is pulled to slide out of the fixing block 19, thus removing the fixing plate 20 from the collection box 13. Then, the collection box 13 is pulled out. During this process, the sliding plate 21, under the elasticity of the second tension spring 22, drives the sliding column 23 to slide to one side. The sliding column 23 then drives the connecting plate 24 on one side to move together. The connecting plate 24 then pushes the upper sealing plate 25 to remain in contact with the return air box 1. When the collection box 13 has completely slid out of the return air box 1, the sealing plate 25 will be in contact with the collection box 13, sealing the inside of the collection box 13. After the impurities and substances are processed, the collection box 13 is slid back into the return air box 1, so that the limiting plate 26 at the upper end of the sealing plate 25 contacts the return air box 1. Then, the collection box 13 is pushed further. At this time, the sealing plate 25, with the cooperation of the limiting plate 26, will pull the sliding column 23 to one side through the connecting plate 24. Then, the sliding column 23 will drive the sliding plate 21 to slide together at the bottom of the collection box 13 and stretch the second tension spring 22. When the collection box 13 is completely slid into the return air box 1, it stops. Then, the fixing plate 20 is inserted into the fixing block 19 and it stops. This allows the return air device of the air-jet spinning machine to automatically seal the collection box 13 when it is pulled out, so that the impurities and substances inside the collection box 13 will not float out.

[0025] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and alterations to these embodiments without departing from the principles and spirit of this utility model will still fall within the protection scope of this utility model.

Claims

1. A return air device for a gas stream spinning machine comprising a return air box (1), characterised in that: A control box (2) is fixed to one end of the return air box (1), and an exhaust pipe (3) is fixed to the upper end of the return air box (1). An activated carbon plate (4) is installed through the upper side of one end of the return air box (1). Mounting blocks (5) are fixed to the four corners of the upper part of the return air box (1). A sliding rod (6) is installed through the upper end of the mounting block (5). A vibrating plate (7) is fixed to the lower end of the sliding rod (6). A filter plate (8) is installed through one end of the vibrating plate (7). Multiple sets of first tension springs (9) are installed at the upper end of the vibrating plate (7). The return air box (1) is located near the lower side. A guide plate (10) is fixed, and a motor (12) is fixed at the other end of the return air box (1). A cam (11) is installed at one end of the motor (12). A collection box (13) and a fixing plate (20) are respectively provided at the lower end of one side of the return air box (1). A fan (14) is provided on one side of the return air box (1). A connecting pipe (15) is installed at one end of the return air box (1). An air suction box (16) is fixed at one end of the connecting pipe (15). Bolts (17) are installed at the four corners of the upper end of the air suction box (16). A spinning machine (18) is provided at the lower end of the air suction box (16).

2. A return air device for an air flow spinning machine according to claim 1, wherein: The return air box (1) is slidably connected to the activated carbon plate (4), and the vibration plate (7) is slidably connected to both the filter plate (8) and the return air box (1).

3. A return air device for an air flow spinning machine according to claim 1, wherein: The mounting block (5) is slidably connected to the slide rod (6), and there are four first tension springs (9), all of which are located inside the return air box (1).

4. A return air device for an air flow spinning machine according to claim 1, wherein: A fixing block (19) is provided through one end of the fixing plate (20). A sliding plate (21) is installed on one side of the bottom of the collection box (13). Multiple sets of second tension springs (22) are provided on one side of the sliding plate (21). Sliding columns (23) are fixed at both ends of the other side of the sliding plate (21). A connecting plate (24) is fixed on one side of the sliding plate (21). A closing plate (25) is fixed at the upper end of the connecting plate (24). Limiting plates (26) are fixed at both ends of the upper end of the closing plate (25).

5. A return air device for an air flow spinning machine according to claim 4, wherein: There are three second tension springs (22), and all of the second tension springs (22) are located inside the collection box (13).

6. A return air device for an air flow spinning machine according to claim 4, wherein: The sliding column (23) passes through the collection box (13) and is slidably connected to the collection box (13), and the sealing plate (25) is slidably connected to the collection box (13).