Spinning oil targeted spraying device and method based on dynamic negative pressure recovery

Abstract

The invention relates to a spraying device, in particular to a spinning oil targeted spraying device and method based on dynamic negative pressure recovery, the spinning oil targeted spraying device comprises a flow guide plate and negative pressure rings located at the two ends of the flow guide plate, and the end of the flow guide plate is inserted into the inner sides of the negative pressure rings; the filter unit is arranged in the negative pressure ring and can rotate relative to the negative pressure ring, and a negative pressure cavity is formed between the filter unit and the negative pressure ring. By arranging the negative pressure recycling and filtering structure, the problem that oil mist flies off in the spinning oil spraying process can be effectively solved, especially when fibers are sprayed in a targeted mode, the flied oil mist can affect the air quality of a workshop and possibly has adverse effects on equipment, and by means of the design of a negative pressure ring in the spraying process, the oil mist can be recycled, and the spraying efficiency is improved. According to the oil mist recovery system, the scattered oil mist is effectively absorbed and guided into the recovery system, so that the oil mist is prevented from being diffused in a workshop, the cleanliness of the workshop environment and the freshness of air are kept, and the harm to the health of staff is reduced.

Description

Technical Field

[0001] The present invention relates to a spraying device, in particular to a spinning oil agent targeted spraying device and method based on dynamic negative pressure recovery. Background Art

[0002] A spinning oil agent targeted spraying device is a device used for precisely spraying oil agents during the spinning process. Its core function is to accurately spray the oil agent onto the fibers. The main purposes of spraying spinning oil agents are as follows: First, to lubricate the fibers, reduce the friction between fibers and between fibers and the equipment, and reduce the breakage rate; Second, to endow the fibers with antistatic properties, prevent problems such as fiber adsorption of dust and entanglement caused by static electricity; Third, to enhance the bundling property of the fibers, make the fibers better hold together during the spinning process, and improve the yarn quality; Fourth, to improve the softness and handle of the fibers, make the yarn softer and more comfortable, and improve the quality of the final product. The spinning oil agent targeted spraying device is an important device in the textile industry. By precisely controlling the spraying process, it improves the quality and efficiency in the spinning production process.

[0003] Traditional spinning oil agent spraying devices have the following technical problems. First, the migration rate of the oil agent is low, resulting in uneven distribution of the oil agent on the surface of the yarn, affecting the lubrication effect of the yarn. Second, these devices are prone to oil agent scattering, forming oil mist pollution, polluting the workshop air and having an adverse impact on the environment. In addition, due to insufficient oil agent penetration rate, too much oil agent often accumulates on the surface of the yarn, affecting subsequent spinning processes. Especially during high-speed spinning, the control accuracy of the oil film thickness is insufficient, further exacerbating this problem.

[0004] In order to reduce the pollution of the workshop environment by oil mist scattering and the waste of oil agents, special recovery devices are usually set up to collect these scattered oil mists. The functions of these recovery devices not only lie in reducing the disorderly diffusion of oil mist, but also in filtering the recovered oil mist so that it can be reused. The filtered spinning oil agent will be refluxed to the mixing chamber, mixed with the newly added spinning oil agent and used again, thereby realizing the recycling of resources and reducing production costs.

[0005] However, there are some problems with the filtration process of existing oil agent recovery devices. Since the recovered spinning oil agent often contains impurities such as fiber fluffs, these impurities will gradually adhere to the surface of the filtration device during the filtration process. Over time, more and more fiber fluffs and other impurities will accumulate on the surface of the filtration device. This accumulation will not only clog the filtration holes but also reduce the filtration efficiency of the filtration device. As time goes by, the surface of the filtration device is covered with more and more fiber fluffs and other impurities, resulting in a decreasing filtration efficiency. This decrease in efficiency will directly affect the filtration effect of the oil mist. When the oil mist is inhaled into the filtration device, due to the surface being covered with impurities, the permeability of the oil mist will become poor, which means that the oil mist cannot pass through the filtration device as smoothly as at the beginning. The dynamic maintenance effect of the filtration device's filtration effect is not good, resulting in a significant reduction in the filtration effect. To restore the performance of the filtration device, it is usually necessary to stop the machine for cleaning to remove the fiber fluffs and other impurities attached to the surface. This shutdown cleaning will not only increase the maintenance cost but also interrupt the production process and affect the normal production efficiency. Summary of the Invention

[0006] The purpose of the present invention is to provide a spinning oil agent targeted spraying device and method based on dynamic negative pressure recovery to solve the problems raised in the above background technology.

[0007] To achieve the above purpose, the present invention provides the following technical solution: A spinning oil agent targeted spraying device based on dynamic negative pressure recovery includes a spraying box and a spray head arranged in the spraying box, and further includes a negative pressure recovery and filtration structure placed in the spraying box. The negative pressure recovery and filtration structure includes: a guide plate and negative pressure rings located at both ends of the guide plate, and the end of the guide plate is inserted into the inner side of the negative pressure ring; it also includes a filtration unit placed in the negative pressure ring and capable of rotating relative to the negative pressure ring. A negative pressure chamber is formed between the filtration unit and the negative pressure ring. The filtration unit includes a filter element for filtering the oil mist and a cleaning element capable of axially moving relative to the filter element to perform reciprocating cleaning on the filter element; a driving mechanism is installed on the guide plate and connected to the filter element.

[0008] A spinning oil agent targeted spraying device based on dynamic negative pressure recovery as described above: The filtration unit further includes a rotating ring for installing the filter element and a sealing plate installed on the rotating ring. An outer ring gear is fixed at one end of the rotating ring; an outer cylinder is fixed on the rotating ring, and an inner cylinder sleeved in the outer cylinder and fixed on the rotating ring. A through hole connected to the negative pressure chamber is annularly opened on the outer cylinder, and multiple groups of adsorption holes are spirally opened on the inner cylinder.

[0009] A spinning oil agent targeted spraying device based on dynamic negative pressure recovery as described above: The filter element includes a microfiltration membrane sleeved inside the outer cylinder and collection grooves provided at both ends of the microfiltration membrane for impurity accumulation, and the outer wall of the microfiltration membrane fits against the inner wall of the outer cylinder.

[0010] A spinning oil agent targeted spraying device based on dynamic negative pressure recovery as described above: The cleaning member includes a cleaning brush ring sleeved outside the inner cylinder and a reciprocating driving member connected to the cleaning brush ring; the inner wall of the cleaning brush ring abuts against the inner cylinder, and the outer wall of the cleaning brush ring abuts against the inner wall of the microfiltration membrane.

[0011] A spinning oil agent targeted spraying device based on dynamic negative pressure recovery as described above: The reciprocating driving member includes a guide rod slidably connected to the cleaning brush ring, a reciprocating lead screw threadedly connected to the cleaning brush ring, and a plugging disc fixed at one end of the guide rod and rotatably connected to the reciprocating lead screw, and the plugging disc is connected to the inner cylinder; it further includes a second gear fixed at one end of the reciprocating lead screw and an inner ring gear ring meshing with the second gear, and the inner ring gear ring is installed on the negative pressure ring.

[0012] A spinning oil agent targeted spraying device based on dynamic negative pressure recovery as described above: One side of the negative pressure ring is respectively connected to a second bracket and a negative pressure pipe, the second bracket is installed on the spraying box, and the negative pressure pipe is communicated with the negative pressure chamber.

[0013] A spinning oil agent targeted spraying device based on dynamic negative pressure recovery as described above: A first bracket is fixed on one side of the deflector, the first bracket is installed on the spraying box, a diversion slope for diverting to both ends is formed at the center of the inner wall of the deflector; Rotating seats are symmetrically fixed at the bottom of the deflector.

[0014] A spinning oil agent targeted spraying device based on dynamic negative pressure recovery as described above: The driving mechanism includes a motor installed on the first bracket, a first helical gear fixed on the output shaft of the motor, two second helical gears meshing with the first helical gear, and a transmission member fixed on the second helical gear.

[0015] A spinning oil agent targeted spraying device based on dynamic negative pressure recovery as described above: The transmission member includes a transmission sleeve fixed on the second helical gear, a plugging rod inserted into the transmission sleeve, a spring placed between the transmission sleeve and the plugging rod, and a first gear fixed at one end of the plugging rod; The first gear meshes with the outer ring gear ring.

[0016] A method of using a spinning oil agent targeted spraying device based on dynamic negative pressure recovery as described above, includes the following steps: Step 1: Pass the fiber through the spraying box, spray spinning oil agent onto the fiber through the nozzle, and use the deflector to deflect the scattered oil mist to the negative pressure ring parts at both ends thereof; Step 2: Connect the negative pressure pipe to the reflux assembly and the negative pressure pump, start the negative pressure pump, generate negative pressure inside the negative pressure ring, and conduct negative pressure absorption on the scattered oil mist; Step 3: The motor drives the rotating ring to rotate inside the negative pressure ring, and the oil mist absorbed into the rotating ring is filtered through the microfiltration membrane to remove the fiber flocs mixed in the oil mist; Step 4: When the rotating ring rotates, the cleaning brush ring reciprocates and brushes on the inner wall of the microfiltration membrane, and the fiber floc impurities attached to the inner wall of the microfiltration membrane are cleaned into the collection grooves at both ends of the microfiltration membrane for temporary storage; Step 5: The oil agent filtered by the microfiltration membrane flows into the negative pressure ring, and is refluxed to the reflux assembly through the negative pressure pipe, and is mixed with the newly added oil agent in the mixing chamber and reused.

[0017] Compared with the prior art, the beneficial effects of the present invention are: by setting a negative pressure recovery and filtration structure, the problem of oil mist scattering during the spraying process of spinning oil agent can be effectively solved. Especially during fiber targeted spraying, the scattered oil mist will not only affect the air quality in the workshop, but may also have an adverse impact on the equipment. Through the design of the negative pressure ring during the spraying process, the scattered oil mist is effectively absorbed and introduced into the recovery system, thereby avoiding the diffusion of oil mist in the workshop, keeping the workshop environment clean and the air fresh, and reducing the harm to the health of employees.

[0018] The filtration unit provided in the negative pressure ring can rotate continuously in the negative pressure ring by connecting with the driving mechanism. During the rotation process, it can efficiently collect the oil mist scattered in the workshop, realize the dynamic reflux of the oil mist. At the same time, during the dynamic reflux process, when the collected oil mist flows through the filtration unit, the centrifugal force generated by the rotation of the filtration unit accelerates the penetration efficiency of the oil mist at the filtration unit, improves the filtration effect. The filter element in the filtration unit can remove impurities such as fiber flocs mixed in the oil mist through fine filtration. Through the effective filtration of the filtration unit, it can ensure that before the oil agent is reused for the second time, the recovered spinning oil agent does not contain impurities such as fiber flocs, improving the permeability and lubrication effect of the oil agent.

[0019] The design of the filtration unit not only focuses on improving the filtration effect, but also takes into account the maintenance problem after long-term use. In order to ensure that the filtration unit can maintain a good filtration effect for a long time, a cleaning part is also provided in the system. The function of the cleaning part is to clean the flocs and other impurities attached to the filter element through reciprocating brushing actions, avoiding the decrease in filtration efficiency caused by excessive accumulation of impurities, so that the filter element can always maintain a high filtration accuracy, effectively improving the quality of oil mist filtration, and preventing the influence on the penetration effect of the oil agent due to insufficient filtration. Description of the Drawings

[0020] Figure 1 It is a schematic structural diagram of a targeted spraying device for spinning oil agent based on dynamic negative pressure recovery; Figure 2 It is a schematic structural diagram of another orientation of the targeted spraying device for spinning oil agent based on dynamic negative pressure recovery; Figure 3 It is a schematic structural diagram of the negative pressure recovery and filtration structure in the targeted spraying device for spinning oil agent based on dynamic negative pressure recovery; Figure 4 It is a schematic structural diagram of another orientation of the negative pressure recovery and filtration structure in the targeted spraying device for spinning oil agent based on dynamic negative pressure recovery; Figure 5 It is a schematic structural diagram of the deflector in the targeted spraying device for spinning oil agent based on dynamic negative pressure recovery; Figure 6 It is a schematic structural diagram of the driving mechanism in the targeted spraying device for spinning oil agent based on dynamic negative pressure recovery; Figure 7 It is a schematic structural diagram of the filtration unit in the targeted spraying device for spinning oil agent based on dynamic negative pressure recovery; Figure 8 It is a schematic structural diagram of another orientation of the filtration unit in the targeted spraying device for spinning oil agent based on dynamic negative pressure recovery; Figure 9 It is a schematic structural diagram of the disassembled filtration unit in the targeted spraying device for spinning oil agent based on dynamic negative pressure recovery; Figure 10 It is a schematic structural diagram of the negative pressure ring in the targeted spraying device for spinning oil agent based on dynamic negative pressure recovery; Figure 11 It is a schematic structural diagram of the disassembled filtration unit removing the negative pressure ring in the targeted spraying device for spinning oil agent based on dynamic negative pressure recovery; Figure 12 It is a schematic structural diagram of the filter element in the targeted spraying device for spinning oil agent based on dynamic negative pressure recovery; Figure 13 It is a schematic structural diagram of the cleaning part in the targeted spraying device for spinning oil agent based on dynamic negative pressure recovery.

[0021] In the figure: 1, spraying box; 2, first bracket; 3, deflector; 4, rotating seat; 5, motor; 6, transmission sleeve; 7, inserting rod; 8, spring; 9, first gear; 10, second bracket; 11, negative pressure ring; 12, negative pressure pipe; 13, rotating ring; 14, outer ring gear ring; 15, adsorption hole; 16, microfiltration membrane; 17, collection tank; 18, cleaning brush ring; 19, guide rod; 20, reciprocating lead screw; 21, plugging disc; 22, inner ring gear ring; 23, second gear; 24, nozzle. Specific embodiments

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Please refer to Figures 1 to 4 , in the embodiment of the present invention, a targeted spraying device for spinning oil agent based on dynamic negative pressure recovery includes a spraying box 1 and a spray head 24 disposed in the spraying box 1, and further includes a negative pressure recovery and filtration structure disposed in the spraying box 1. The negative pressure recovery and filtration structure includes: a diversion plate 3 and negative pressure rings 11 located at both ends of the diversion plate 3, and the end of the diversion plate 3 is inserted into the inner side of the negative pressure ring 11; further includes a filtration unit disposed in the negative pressure ring 11 and capable of rotating relative to the negative pressure ring 11. A negative pressure chamber is formed between the filtration unit and the negative pressure ring 11. The filtration unit includes a filter element for filtering oil mist and a cleaning element capable of axially moving relative to the filter element to perform reciprocating cleaning on the filter element; a driving mechanism is installed on the diversion plate 3 and connected to the filter element.

[0024] In this embodiment, during the targeted spraying process of the spinning finish, when the fibers pass through the spraying box 1, the spray head 24 will accurately spray the spinning finish onto the surface of the fibers. However, during the spraying process, some of the finish may disperse to form an oil mist due to air flow or the rapid movement of the fibers. When the oil mist disperses, it will first impact on the flow guide plate 3. The special structure of the flow guide plate 3 enables it to guide and disperse these oil mists to both ends. This design not only helps to control the diffusion direction of the oil mist but also facilitates subsequent recovery and treatment. Negative pressure rings 11 are respectively arranged at both ends of the flow guide plate 3. The negative pressure rings 11 are connected to an external negative pressure pump and a recovery component (not shown in the figure). When the negative pressure pump is started, a negative pressure is generated inside the negative pressure rings 11. This negative pressure environment can effectively suck the dispersed oil mist into the negative pressure rings 11, thereby preventing the oil mist from spreading disorderly in the workshop. A filtering unit is also arranged inside the negative pressure rings 11. When the oil mist is sucked into the negative pressure rings 11, it will first be filtered by the filtering unit. The filtering element in the filtering unit can finely filter the oil mist and effectively remove impurities such as fiber fluffs therein. To further improve the filtering efficiency, the device is also equipped with a driving mechanism. The driving mechanism is installed on the flow guide plate 3 and is connected to the filtering unit. When the driving mechanism is started, it will drive the filtering unit to rotate inside the negative pressure rings 11. Under the action of centrifugal force, the filtering speed of the oil mist when passing through the filtering element will be significantly accelerated. This design not only improves the filtering efficiency but also ensures the stability of the filtering effect. In addition, the filtering unit is also equipped with a cleaning element. The cleaning element can perform reciprocating movements to brush and clean the filtering element. It can prevent impurities from accumulating on the surface of the filtering element, thereby ensuring that the filtering element always maintains an efficient filtering state. In this way, the device can effectively filter and recover the absorbed spinning finish, enabling it to be mixed with newly added finish again for spraying, thereby realizing the secondary utilization of the finish, reducing production costs, and at the same time reducing the impact on the environment.

[0025] Please refer to Figures 9 to 13 , as a further solution of the present invention, the filtering unit further includes a rotating ring 13 for installing the filtering element and a sealing disk 21 installed on the rotating ring 13. An outer ring gear 14 is fixed at one end of the rotating ring 13; an outer cylinder is fixed on the rotating ring 13, and an inner cylinder sleeved inside the outer cylinder and fixed on the rotating ring 13 is provided. A through hole connected to the negative pressure chamber is annularly opened on the outer cylinder, and a plurality of groups of adsorption holes 15 are spirally opened on the inner cylinder.

[0026] The filtering element includes a microfiltration membrane 16 sleeved inside the outer cylinder and collection grooves 17 provided at both ends of the microfiltration membrane 16 for impurity accumulation. The outer wall of the microfiltration membrane 16 fits against the inner wall of the outer cylinder.

[0027] The cleaning member includes a cleaning brush ring 18 sleeved outside the inner cylinder and a reciprocating driving member connected to the cleaning brush ring 18; the inner wall of the cleaning brush ring 18 abuts against the inner cylinder, and the outer wall of the cleaning brush ring 18 abuts against the inner wall of the microfiltration membrane 16.

[0028] The reciprocating driving member includes a guide rod 19 slidably connected to the cleaning brush ring 18, a reciprocating lead screw 20 threadedly connected to the cleaning brush ring 18, and a plugging disc 21 fixed at one end of the guide rod 19 and rotatably connected to the reciprocating lead screw 20, and the plugging disc 21 is connected to the inner cylinder; it further includes a second gear 23 fixed at one end of the reciprocating lead screw 20 and an inner ring gear 22 meshing with the second gear 23, and the inner ring gear 22 is installed on the negative pressure ring 11.

[0029] In this embodiment, the rotating ring 13 is installed inside the negative pressure ring 11 and can rotate freely therein. The microfiltration membrane 16, as a key component for filtration, is installed on the rotating ring 13 and is located between the outer cylinder and the inner cylinder. This structural design enables the microfiltration membrane 16 to make full use of the centrifugal force generated by the rotation of the rotating ring 13 to improve the filtration efficiency; the inner wall of the microfiltration membrane 16 is in close contact with the cleaning brush ring 18. This design ensures that the cleaning brush ring 18 can directly contact the inner wall of the microfiltration membrane 16 during rotation, thereby realizing effective cleaning of the microfiltration membrane 16. When the rotating ring 13 rotates, since the position of the negative pressure ring 11 remains stationary, the rotating ring 13 and the plugging disc 21 installed thereon will rotate synchronously. This synchronous rotation design ensures the coordinated operation of the entire filtration unit. During the rotation of the rotating ring 13, the meshing relationship between the second gear 23 and the inner ring gear 22 plays a key role. The second gear 23 is installed on the negative pressure ring 11, and the inner ring gear 22 provided at one end of the reciprocating lead screw 20 meshes with the second gear 23, so that when the rotating ring 13 rotates, the second gear 23 meshes with the inner ring gear 22 to make the reciprocating lead screw 20 rotate. This rotation is transmitted to the cleaning brush ring 18, enabling the cleaning brush ring 18 to reciprocally slide and adjust on the guide rod 19; this reciprocating sliding adjustment design enables the cleaning brush ring 18 to effectively clean and rub the impurities attached to the inner wall of the microfiltration membrane 16. Through this mechanical action, the impurities are swept by the cleaning brush ring 18 to the collection groove 17 for temporary storage. The design of the collection groove 17 provides a temporary storage space for the impurities, thereby preventing the accumulation of impurities on the surface of the microfiltration membrane 16 and ensuring that the filtration surface of the microfiltration membrane 16 always maintains an efficient filtration effect.

[0030] Please refer to Figure 10 As a further solution of the present invention, a second bracket 10 and a negative pressure pipe 12 are respectively connected to one side of the negative pressure ring 11. The second bracket 10 is installed on the spraying box 1, and the negative pressure pipe 12 is communicated with the negative pressure chamber.

[0031] In this embodiment, one end of the negative pressure pipe 12 is connected to the negative pressure chamber inside the negative pressure ring 11, and the other end is connected to an external negative pressure pump and a reflux assembly. This connection method provides basic support for the oil mist recovery and filtration functions of the entire device. When the negative pressure pump is started, its powerful suction ability creates a negative pressure environment in the negative pressure chamber inside the negative pressure ring 11. The generation of this negative pressure environment is based on the efficient operation of the negative pressure pump. It transmits the negative pressure to the inside of the negative pressure ring 11 through the negative pressure pipe 12. This process not only ensures the stable transmission of the negative pressure but also provides the necessary power support for the adsorption of oil mist. The negative pressure environment formed inside the negative pressure ring 11 plays a key role in the adsorption of scattered oil mist. When the oil mist scatters during the spraying process for various reasons, the negative pressure inside the negative pressure ring 11 quickly adsorbs it. The improvement of this adsorption effect benefits from the efficient operation of the negative pressure pump and the stable connection of the negative pressure pipe 12. The start of the negative pressure pump enables the negative pressure chamber inside the negative pressure ring 11 to continuously maintain a relatively low pressure level, thereby generating a strong attraction to the surrounding oil mist. This negative pressure adsorption method can not only effectively capture the scattered oil mist, reduce its disorderly diffusion in the workshop, but also ensure that the oil mist is guided into the negative pressure ring 11 for subsequent filtration and recovery treatment. In this way, the device can achieve efficient recovery of oil mist, reduce the waste of oil agents, and at the same time reduce the pollution of the workshop environment.

[0032] Please refer to Figure 5 , as a further solution of the present invention, a first bracket 2 is fixed on one side of the guide plate 3. The first bracket 2 is installed on the spraying box 1. A guide slope for guiding to both ends is formed at the center of the inner wall of the guide plate 3. Rotating seats 4 are symmetrically fixed at the bottom of the guide plate 3.

[0033] In this embodiment, during the targeted spraying process of the spinning finish, the scattering of the oil mist is a common problem. To effectively control the scattered oil mist and guide it to the recovery system, a unique deflector 3 is specifically designed for this device. The inner wall of the deflector 3 adopts a special shape design, forming a deflector slope with a central bulge and lower ends at both sides. The inspiration for this design comes from the principles of fluid mechanics, aiming to guide the flow direction of the oil mist through a reasonable structure, so as to achieve efficient collection and recovery of the oil mist. When the oil mist scatters and impacts the deflector 3 during the spraying process, the special shape of the deflector slope plays a key role. After the oil mist impacts the deflector 3, due to the guiding effect of the deflector slope, it will be quickly dispersed and flow towards both ends along the deflector slope. This change in the flow direction is achieved through the inclined plane design of the deflector slope. The inclined plane can reduce the rebound and diffusion of the oil mist during impact, enabling it to flow along a predetermined path. One end of the deflector 3 is deliberately extended into a part of the area inside the negative pressure ring 11. This design is crucial because it ensures that the oil mist can be accurately guided to the position of the negative pressure ring 11. Since the negative pressure ring 11 is connected to an external negative pressure pump, when the negative pressure pump is started, a negative pressure environment will be generated inside the negative pressure ring 11. This negative pressure environment can effectively adsorb and collect the oil mist flowing along the deflector 3. Through this design, not only can the oil mist be effectively collected, but it can also be guided into the negative pressure ring 11 for subsequent filtration and recovery treatment. This efficient guiding and collection mechanism not only reduces the disorderly diffusion of the oil mist in the workshop but also reduces environmental pollution.

[0034] Please refer to Figure 5 and Figure 6 As a further solution of the present invention, the driving mechanism includes a motor 5 installed on the first bracket 2, a first helical gear fixed on the output shaft of the motor 5, two second helical gears meshing with the first helical gear, and a transmission member fixed on the second helical gear.

[0035] The transmission member includes a transmission sleeve 6 fixed on the second helical gear, a plug rod 7 inserted into the transmission sleeve 6, a spring 8 placed between the transmission sleeve 6 and the plug rod 7, and a first gear 9 fixed at one end of the plug rod 7; the first gear 9 meshes with the outer ring gear 14.

[0036] In this embodiment, when the motor 5 starts and begins to operate, its power output is transmitted to other parts of the device. Specifically, the motor 5 can drive the transmission sleeves 6 on both sides to rotate simultaneously. This synchronous drive design ensures the coordinated movement on both sides of the device, thereby improving the stability and reliability of the entire system. A plug rod 7 is inserted into the transmission sleeve 6. This plug-in structure design allows the plug rod 7 to slide within the transmission sleeve 6. To ensure the effective transmission of power during the sliding process, anti-rotation protrusions are specially provided on the inner wall of the transmission sleeve 6, and anti-rotation grooves are designed on the outer wall of the plug rod 7 to cooperate with the anti-rotation protrusions. This anti-rotation structure design enables the plug rod 7 to achieve a stable transmission effect while sliding within the transmission sleeve 6. Even when there is relative sliding between the plug rod 7 and the transmission sleeve 6, the power can be reliably transmitted; in addition, a spring 8 is provided between the plug rod 7 and the transmission sleeve 6. The spring-back force of the spring 8 can automatically adjust the combined length between the transmission sleeve 6 and the plug rod 7 according to the actual working conditions. This elastic adjustment mechanism enables the device to adapt to different transmission requirements. Especially when the transmission distance between the negative pressure ring 11 and the motor 5 needs to be adjusted, the elastic effect of the spring 8 can ensure the flexibility and adaptability of the transmission system. A first gear 9 is fixed on the plug rod 7, and the first gear 9 meshes with the outer ring gear 14. This gear transmission design enables the power of the motor 5 to be transmitted to the outer ring gear 14 through the first gear 9, thereby driving the rotating ring 13 to rotate on the negative pressure ring 11. Since other components are also installed on the rotating ring 13, when the rotating ring 13 rotates, these components can also rotate synchronously. This synchronous rotation design not only improves the operating efficiency of the device.

[0037] A method of using a spinning oil agent targeted spraying device based on dynamic negative pressure recovery as described above includes the following steps: Step 1: Pass the fiber through the spraying box 1, spray the spinning oil agent on the fiber through the nozzle 24, and use the guide plate 3 to guide the scattered oil mist to the negative pressure ring 11 parts at both ends thereof; Step 2: Connect the negative pressure pipe 12 to the reflux assembly and the negative pressure pump, start the negative pressure pump, generate negative pressure inside the negative pressure ring 11, and perform negative pressure absorption on the scattered oil mist; Step 3: The motor 5 drives the rotating ring 13 to rotate within the negative pressure ring 11, and the oil mist absorbed into the rotating ring 13 is filtered through the microfiltration membrane 16 to remove the fiber flocs mixed in the oil mist; Step 4: When the rotating ring 13 rotates, the cleaning brush ring 18 reciprocally brushes on the inner wall of the microfiltration membrane 16, and the fiber floc impurities attached to the inner wall of the microfiltration membrane 16 are cleaned into the collection grooves 17 at both ends of the microfiltration membrane 16 for temporary storage; Step 5: The oil agent filtered by the microfiltration membrane 16 flows into the negative pressure ring 11, returns to the reflux assembly through the negative pressure pipe 12, and is mixed with the newly added oil agent in the mixing chamber and then used again.

[0038] The above embodiments are exemplary rather than restrictive. Therefore, all technical solutions of the present invention that can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention are encompassed within the present invention.

Claims

1. A spinning oil targeted spraying device based on dynamic negative pressure recovery, comprising a spray box and a spray head arranged in the spray box, characterized in that: It also includes a negative pressure recovery and filtering structure placed in the spray box, the negative pressure recovery and filtering structure includes: a guide plate and negative pressure rings located at both ends of the guide plate, and the end of the guide plate is inserted into the inner side of the negative pressure ring; it also includes a filter unit placed in the negative pressure ring and capable of rotating relative to the negative pressure ring, a negative pressure cavity is formed between the filter unit and the negative pressure ring, the filter unit includes a filter element for filtering oil mist and a cleaning element that can move axially relative to the filter element to perform reciprocating cleaning on the filter element; a driving mechanism is installed on the guide plate and connected to the filter element.

2. According to claim 1, a spinning oil targeted spraying device based on dynamic negative pressure recovery is characterized in that: The filter unit also includes a rotating ring for installing the filter element and a sealing disk installed on the rotating ring. An outer ring gear ring is fixed at one end of the rotating ring. An outer cylinder and an inner cylinder sleeved in the outer cylinder and fixed on the rotating ring are fixed on the rotating ring. A through hole connected to the negative pressure chamber is provided in an annular shape on the outer cylinder, and a plurality of adsorption holes are spirally provided on the inner cylinder.

3. The spinning oil targeted spraying device based on dynamic negative pressure recovery according to claim 2 is characterized in that: The filter element comprises a microfiltration membrane sleeved in an outer cylinder and collection grooves arranged at both ends of the microfiltration membrane for storing impurities. The outer wall of the microfiltration membrane is in contact with the inner wall of the outer cylinder.

4. The spinning oil targeted spraying device based on dynamic negative pressure recovery according to claim 3 is characterized in that: The cleaning part comprises a cleaning brush ring sleeved outside the inner cylinder and a reciprocating driving part connected to the cleaning brush ring; the inner wall of the cleaning brush ring contacts the inner cylinder, and the outer wall of the cleaning brush ring contacts the inner wall of the microfiltration membrane.

5. The spinning oil targeted spraying device based on dynamic negative pressure recovery according to claim 4 is characterized in that: The reciprocating drive component includes a guide rod slidably connected to the cleaning brush ring, a reciprocating screw threadedly connected to the cleaning brush ring, and a sealing disk fixed at one end of the guide rod and rotatably connected to the reciprocating screw, and the sealing disk is connected to the inner cylinder; it also includes a second gear fixed at one end of the reciprocating screw and an inner ring gear meshing with the second gear, and the inner ring gear ring is installed on the negative pressure ring.

6. The spinning oil targeted spraying device based on dynamic negative pressure recovery according to claim 1 is characterized in that: One side of the negative pressure ring is respectively connected with a second bracket and a negative pressure pipe, the second bracket is installed on the spray box, and the negative pressure pipe is connected with the negative pressure chamber.

7. The spinning oil targeted spraying device based on dynamic negative pressure recovery according to claim 2 is characterized in that: A first bracket is fixed on one side of the guide plate, and the first bracket is installed on the spray box. A guide slope for guiding flow to both ends is formed at the center of the inner wall of the guide plate; a rotating seat is symmetrically fixed at the bottom of the guide plate.

8. The spinning oil targeted spraying device based on dynamic negative pressure recovery according to claim 7 is characterized in that: The driving mechanism comprises a motor mounted on a first bracket, a first bevel gear fixed on an output shaft of the motor, two second bevel gears meshing with the first bevel gear, and a transmission member fixed on the second bevel gears.

9. The spinning oil targeted spraying device based on dynamic negative pressure recovery according to claim 8 is characterized in that: The transmission member comprises a transmission sleeve fixed on the second bevel gear, a plug rod inserted in the transmission sleeve, a spring placed between the transmission sleeve and the plug rod, and a first gear fixed at one end of the plug rod; the first gear meshes with the outer ring gear.

10. A method for using a spinning oil targeted spraying device based on dynamic negative pressure recovery as described in any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: Pass the fiber through the spray box, spray the spinning oil onto the fiber through the nozzle, and use the guide plate to guide the scattered oil mist to the negative pressure ring parts at both ends; Step 2: connect the negative pressure pipe with the reflux component and the negative pressure pump, start the negative pressure pump, generate negative pressure inside the negative pressure ring, and absorb the scattered oil mist by negative pressure; Step 3: The motor drives the rotating ring to rotate in the negative pressure ring, and the oil mist absorbed into the rotating ring is filtered through the microfiltration membrane to remove the fiber flying catkins mixed in the oil mist; Step 4: When the rotating ring rotates, the cleaning brush ring brushes back and forth on the inner wall of the microfiltration membrane, cleaning the fiber flying impurities attached to the inner wall of the microfiltration membrane and temporarily storing them in the collection tanks at both ends of the microfiltration membrane; Step 5: The oil filtered by the microfiltration membrane flows into the negative pressure ring, flows back to the reflux component through the negative pressure pipe, and is mixed with the newly added oil in the mixing chamber and reused.

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