A kind of lubricant production and filtering device for PET polyester staple fiber and preparation method thereof

Abstract

The present invention relates to the technical field of filters, and discloses a PET polyester staple fiber lubricant production filter device and a preparation method, wherein a PET polyester staple fiber lubricant production filter device includes a filter cylinder, and also includes a top sealing plate fixedly connected to the top of the filter cylinder, a guide flow changer located inside the filter cylinder and fixedly connected to the bottom of the top sealing plate, a transmission member receives impact through a force-bearing ball to move, and the bottom of the storage funnel is closed by a bottom sealing member, and when the transmission member moves downward, the top of the bottom sealing member can communicate with the waste area. By using the guide flow changer to provide random but continuous power to the force-bearing ball, the transmission member can continuously drive the stripper to continuously scrape the filter element, without pausing the equipment to replace the filter disc and separate the gravel, preventing the accumulation of gravel from affecting the filtering effect, maintaining the efficient operation of the filtering equipment, improving the filtering efficiency and filtering effect, and reducing the overall maintenance cost.

Description

Technical Field

[0001] The present invention relates to the technical field of filters, and in particular to a lubricant production and filtering device for PET polyester staple fibers and a preparation method thereof. Background Art

[0002] PET polyester staple fiber is a synthetic fiber made by esterification of polyethylene terephthalate and ethylene glycol, followed by polymerization to form polyester, which is then made into short fibers by melt spinning.

[0003] The performance requirements of PET polyester staple fiber are increasing day by day. Therefore, the quality of materials needs to be guaranteed when making PET polyester staple fiber, especially the film thickness control and shrinkage rate of PET polyester staple fiber. It requires a small amount of lubricant to be added and high lubrication efficiency, while ensuring the surface density and high gloss of the product. Therefore, based on the "like dissolves like" principle of lubricating materials, a compatibilizer is used to modify the thermoplastic resin matrix, and chemically active groups are introduced to increase the interfacial chemical bonding effect between carbon fiber and polyimide, effectively mixing and compatibility to form a stable interface structure, thereby improving the interfacial bonding strength of the composite material. However, in the existing technology, when the lubricant is filtered through a filtering device after mixing, the gravel inside the lubricant will be blocked by the filter element. When a large amount of gravel is attached to the filter element, it will generate greater pressure on the equipment, and the pressure sensor will detect the presence of gravel in the lubricant. After detection, the sensor will provide feedback to the operator. There are currently two solutions. One is to directly replace and clean the filter element. Frequent replacement of filter elements not only increases workload, but is also troublesome and time-consuming. The other is to equip it with a backwash or scraper structure to automatically clean it, and then use a suction device to extract the gravel. However, both methods require suspending the filtration work, which has a certain impact on the continuity of the production process. At the same time, the sensor equipment can only detect and feedback when the pressure reaches the set value. This results in a lot of gravel attached to the filter element at this time, which reduces the filtration efficiency of the filtration equipment. This belated cleaning method not only affects the equipment performance and increases maintenance costs, but may also shorten the life of the filter element. At the same time, the sensor equipment requires continuous maintenance, which cannot effectively guarantee the stability of the production process and product quality.

[0004] A filtration device and preparation method for lubricant production of PET polyester staple fibers are proposed, which do not require suspending the production process while ensuring filtration efficiency. Summary of the Invention

[0005] The purpose of the present invention is to provide a filtration device and preparation method for producing a lubricant for PET polyester staple fiber, so as to solve the problem that gravel inside the filtering equipment cannot be removed in time and the production process will be interrupted during removal.

[0006] The present invention provides, on one hand, a filter device for producing lubricant for PET polyester staple fiber, comprising a filter cylinder, a top sealing plate fixedly connected to the top end of the filter cylinder, a guide flow-changing member located inside the filter cylinder and fixedly connected to the bottom of the top sealing plate, a filter element fixedly connected to the bottom of the guide flow-changing member, a transmission member arranged at the bottom of the top sealing plate, a force-bearing ball and a stripper fixedly connected to the outside of the transmission member, a support rod fixedly connected to the inside of the filter cylinder, a bottom sealing member fixedly connected to the middle of the support rod, a guide hemisphere arranged outside the support rod, and A storage funnel is arranged inside the filter cylinder, one end of the transmission member extends to the inside of the guide hemisphere, the force-bearing ball is located directly below the guide deflector, the stripper is fitted with the filter element, the bottom seal is located below the guide hemisphere, and the space below the storage funnel of the filter cylinder is a waste area. The transmission member receives impact through the force-bearing ball to move, and the bottom of the storage funnel is closed by the bottom seal. When the gravel above the bottom seal reaches the set value, the transmission member moves downward to allow the top of the bottom seal to communicate with the waste area.

[0007] Furthermore, the guide flow-changing component includes a guide funnel fixedly connected to the top sealing plate, a bellows fixedly connected to the bottom of the guide funnel, and a connecting frame fixedly connected to the outside of the bellows. The bellows is tangent to the force-bearing ball, and the top of the filter element is fixedly connected to the connecting frame.

[0008] Furthermore, the stripper includes a connecting rod fixedly connected to the outside of the transmission member, and a plurality of scrapers equidistantly arranged and fixedly connected to the outside of the connecting rod, and the scrapers are fitted with the inside of the filter element.

[0009] Furthermore, the transmission member includes a round rod connected to the top sealing plate, a connecting block fixedly connected to one end of the round rod, a filter disc fixedly connected to the bottom of the connecting block, and a return member arranged at the other end of the round rod. The end of the round rod close to the bottom sealing member is hollowed out, a square notch is provided on the connecting block, the support rod passes through the square notch, and the outer diameter of the filter disc is inclined upward in a direction gradually approaching the center of the circle.

[0010] Furthermore, the bottom seal includes a mounting rod fixedly connected to the support rod, an inverted cone part slidably connected to the outside of the mounting rod, and a strong spring connected between the mounting rod and the inverted cone part, the strong spring is located inside the inverted cone part, the top end of the mounting rod is a threaded head, a through hole is opened at the center of the filter plate, and the threaded head passes through the through hole and is connected to the support rod.

[0011] Furthermore, the diameter of the filter disc is the same as the diameter of the bottom end of the storage funnel, the diameter of the bottom end of the inverted cone is larger than the diameter of the bottom end of the storage funnel, and the inverted cone fits the storage funnel when the strong spring is not deformed.

[0012] Furthermore, a path groove is provided on the outer side of the round rod near the top end, and the return member includes a shaft disc rotatably connected to the top end of the round rod, and a return spring connected between the shaft disc and the top sealing plate.

[0013] Furthermore, a sleeve is fixedly connected to the bottom of the center of the top sealing plate, and the sleeve is located outside the round rod. A through hole is opened on the sleeve, and a limit strip is fixedly connected inside the through hole. One end of the limit strip is located inside the path groove.

[0014] Furthermore, the vertical length of the path groove is smaller than the distance from the bottom end of the scraper to the support rod, the lower part of the storage funnel is a circular tube, and the vertical length of the path groove is equal to the distance from the filter disc to the circular tube.

[0015] Another aspect of the present invention provides a method for preparing a lubricant for PET polyester staple fibers, wherein the lubricant for PET polyester staple fibers is used to produce a filter device, comprising the following steps:

[0016] Raw material ratio: Determine the types and proportions of base oil, surfactant, antistatic agent, antiwear agent and other additives to achieve the best lubrication effect.

[0017] Mixing and stirring: Pour into a stirring kettle, turn on the stirrer to heat, and maintain the stirring speed to ensure that all components are fully mixed and heated to a suitable temperature.

[0018] Filtration and cooling: After mixing is completed, the lubricant is transported to the inside of the filter cylinder, and is guided to the top of the force-bearing ball through the guide funnel and bellows. It is then filtered through the filter element and the filtered lubricant is cooled.

[0019] Testing and packaging: Take samples to test the performance indicators of the lubricant to ensure that it meets the requirements of polyester staple fiber production. After passing the test, the lubricant is placed in a clean packaging container and sealed for storage.

[0020] Beneficial effects of the present invention:

[0021] By utilizing the guide deflector to provide random but continuous power to the force-bearing ball, the transmission part can continuously drive the stripper to continuously scrape the filter element without interrupting the production and filtration process, thereby improving production efficiency and reducing downtime. At the same time, the deposited gravel is squeezed and continuously accumulated when the transmission part moves. When there is too much gravel above the bottom seal, the accumulated gravel can be used to make up for the distance difference between the transmission part and the bottom seal, so that the transmission part can squeeze the bottom seal, and then quickly and briefly separate the bottom seal from the storage funnel, so that the gravel is discharged from above the bottom seal into the waste area. At this time, the gravel can be collected from inside the waste area without pausing the equipment to replace the filter disc and separate the gravel, preventing the accumulation of gravel from affecting the filtration effect, maintaining the efficient operation of the filtration equipment, improving the filtration efficiency and filtration effect, and reducing the overall maintenance cost.

[0022] 2. The path slot is restricted by the limit bar, so that the round rod can rotate while moving up and down. The up and down movement and rotation are combined and transmitted to the scraper, so that the scraper can achieve all-round coverage. The up and down movement of the scraper helps to remove impurities on the surface of the filter element, and the rotation action can better penetrate into the inside of the filter element, ensuring cleaning without dead angles, so that the pollutants inside the filter element are effectively removed, increasing the number of contacts between the filter element and the scraper, and after multiple reciprocating movements of the scraper, even stubborn gravel can be effectively removed, providing a strong guarantee for maintaining the stable operation of the filter element.

[0023] 3. The guide funnel, bellows and connecting frame are integrated so that they can be assembled with each other. At the same time, the filter element can be quickly combined with the connecting frame, so that the equipment can make full use of existing resources, without the need for large-scale transformation, saving costs. At the same time, the support rod is used to connect the guide hemisphere and the mounting rod. At the same time, the transmission parts as a whole can directly transform both ends of the existing transmission parts, which can be integrated into the existing operating process, improve flexibility, and make maintenance more convenient, realize the sharing of existing maintenance resources, meet different production needs, and achieve efficient use of equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the three-dimensional structure of the present invention from a first viewing angle;

[0025] Figure 2 This is a top view of the present invention;

[0026] Figure 3 For the present invention Figure 2 Cross-sectional view at AA in the middle;

[0027] Figure 4 It is a structural schematic diagram of the transmission of the present invention;

[0028] Figure 5 For the present invention Figure 3 A magnified schematic diagram of point B in the middle;

[0029] Figure 6 For the present invention Figure 4 The enlarged schematic diagram of point C in the middle;

[0030] Figure 7 It is a cross-sectional view of the overall structure of the present invention;

[0031] Figure 8 For the present invention Figure 7 The enlarged schematic diagram of point D in the middle;

[0032] Figure 9 This is a state diagram of the filter disc of the present invention when it is moving.

[0033] In the picture:

[0034] 1. Filter cylinder; 2. Top sealing plate; 21. Sleeve; 211. Perforation; 3. Guide flow changer; 31. Guide funnel; 32. Bellows; 33. Connecting frame; 4. Filter element; 5. Transmission part; 51. Round rod; 511. Path groove; 52. Connecting block; 521. Square notch; 53. Filter disc; 54. Return member; 541. Shaft disc; 542. Return spring; 6. Forced ball; 7. Stripper; 71. Connecting rod; 72. Scraper; 8. Support rod; 9. Bottom seal; 91. Mounting rod; 911. Threaded head; 92. Inverted cone; 93. Power spring; 10. Guide hemisphere; 11. Storage funnel; 111. Round tube; 12. Waste area; 13. Limit strip. DETAILED DESCRIPTION

[0035] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0036] Example 1, with reference to Figures 1-9, which is the first embodiment of the present invention, provides a PET polyester staple fiber lubricant production filtering device, including a filter cylinder 1, and also includes a top sealing plate 2 fixedly connected to the top of the filter cylinder 1, a guide flow changer 3 located inside the filter cylinder 1 and fixedly connected to the bottom of the top sealing plate 2, a filter element 4 fixedly connected to the bottom of the guide flow changer 3, a transmission member 5 arranged at the bottom of the top sealing plate 2, a force-bearing ball 6 and a stripper 7 fixedly connected to the outside of the transmission member 5, a support rod 8 fixedly connected to the inside of the filter cylinder 1, a bottom sealing member 9 fixedly connected to the middle of the support rod 8, a guide hemisphere 10 arranged outside the support rod 8, and a storage funnel 11 arranged inside the filter cylinder 1, one end of the transmission member 5 extends to the inside of the guide hemisphere 10, the force-bearing ball 6 is located directly below the guide flow changer 3, the stripper 7 is in contact with the filter element 4, the bottom sealing member 9 is located below the guide hemisphere 10, and the space below the storage funnel 11 of the filter cylinder 1 is a waste area 12, the transmission member 5 moves by receiving the impact through the force-bearing ball 6. The bottom of the storage funnel 11 is closed by the bottom seal 9. When the gravel above the bottom seal 9 reaches the set value, the transmission member 5 moves downward to make the top of the bottom seal 9 communicate with the waste area 12. The support rod 8 passes through the guide hemisphere 10, making the guide hemisphere 10 unable to move vertically, and the transmission member 5 passes through the guide hemisphere 10, making the guide hemisphere 10 unable to move horizontally, thereby fixing the guide hemisphere 10, and the falling gravel passes through the guide hemisphere 10 to reach the interior of the storage funnel 11. At the same time, during installation, the transmission member 5 and the guide hemisphere 10 can be combined first, and then the support rod 8 is passed through the transmission member 5 and the guide hemisphere 10, and then the bottom seal 9 is connected to the support rod 8 from the bottom. The top sealing plate 2, the guide deflector 3 and the filter element 4 can be connected step by step and inserted into the interior of the filter cylinder 1, so as to facilitate installation and can be conveniently integrated into the existing filtering equipment without large-scale modification of the equipment.

[0037] In addition, the filter cylinder 1 is provided with a liquid inlet and a liquid outlet. At the same time, a conventional valve delivery pipe is provided below the filter cylinder 1, so that the sand and gravel entering the waste area 12 can be transported and processed by opening the bottom of the filter cylinder 1 through such equipment.

[0038] Reference Figure 1-Figure 3 The guide flow-changing component 3 includes a guide funnel 31 fixedly connected to the top sealing plate 2, a bellows 32 fixedly connected to the bottom of the guide funnel 31, and a connecting frame 33 fixedly connected to the outside of the bellows 32. The bellows 32 is tangent to the force-bearing ball 6, and the top of the filter element 4 is fixedly connected to the connecting frame 33.

[0039] It can be understood that the cross-sectional area inside the bellows 32 changes periodically along the length of the tube, causing the water flow to continuously accelerate and decelerate when passing through, thereby causing a change in flow rate. That is to say, in the area where the cross-sectional area is reduced, the flow rate increases to maintain mass conservation, while in the area where the cross-sectional area is increased, the flow rate decreases. At the same time, the change in cross-sectional area causes pressure fluctuations, which further affects the flow rate. The kinetic energy and potential energy of the fluid are converted in the bellows 32. The potential energy is converted into potential energy where the cross-sectional area is reduced, and the flow rate increases. The kinetic energy is converted into potential energy where the cross-sectional area is increased, and the flow rate decreases, thereby causing an impact force with randomly varying sizes, which acts on the force-bearing ball 6.

[0040] In addition, the shape of the inner wall of the bellows 32 increases the friction and resistance between the fluid and the tube wall, which is also a factor affecting the flow rate. Then the lubricant after passing through the bellows 32 may have a random pulse force, or continue to have the same impact force, but after a period of time, there will be random changes in the size of the impact, which means that the size of the impact force is always randomly switched, and there will be no constant state. Then the force-bearing ball 6 will move down when the impact force is large, and move back with the transmission part 5 when the impact force is small.

[0041] Reference Figure 1-Figure 7 The stripper 7 includes a connecting rod 71 fixedly connected to the outside of the transmission member 5, and a plurality of scrapers 72 equidistantly arranged and fixedly connected to the outside of the connecting rod 71. The scrapers 72 fit the inside of the filter element 4. When the transmission member 5 moves, it will drive the connecting rod 71 to move, so that the scrapers 72 can continuously clean the filter element 4, and will not clean it when a lot of gravel is already attached to the surface of the filter element 4. The continuous cleaning process helps to reduce the blockage of the filter element 4 and ensure the filtering effect at all times.

[0042] Reference Figure 2-Figure 5 The transmission member 5 includes a round rod 51 connected to the top sealing plate 2, a connecting block 52 fixedly connected to one end of the round rod 51, a filter disc 53 fixedly connected to the bottom of the connecting block 52, and a return member 54 arranged at the other end of the round rod 51. As the round rod 51 descends, the inner part of the round rod 51 close to the bottom sealing member 9 is hollowed out to avoid collision between the round rod 51 and the bottom sealing member 9. A square notch 521 is provided on the connecting block 52, and the support rod 8 passes through the square notch 521. As the filter disc 53 moves downward with the round rod 51, gravel will reach the top of the filter disc 53 when the filter disc 53 moves downward, and the outer diameter of the filter disc 53 is tilted upward in a direction gradually approaching the center of the circle, so that the gravel can fall when the filter disc 53 moves back and forth.

[0043] Reference Figure 2-Figure 6The bottom seal 9 includes a mounting rod 91 fixedly connected to the support rod 8, an inverted cone 92 slidably connected to the outside of the mounting rod 91, and a strong spring 93 connected between the mounting rod 91 and the inverted cone 92. The strong spring 93 is located inside the inverted cone 92. The top of the mounting rod 91 is a threaded head 911. A through hole is opened at the center of the filter disc 53. The threaded head 911 passes through the through hole and is connected to the support rod 8. The two ends of the support rod 8 are fixedly clamped with the filter cylinder 1, and the mounting rod 91 is threadedly connected to the support rod 8 through the threaded head 911, and the interior of the strong spring 93 is hollow to reduce the overall weight.

[0044] Reference Figure 2-Figure 6 The diameter of the filter disc 53 is the same as the diameter of the bottom end of the storage funnel 11, so that when the filter disc 53 is in contact with the bottom of the storage funnel 11, gravel will not be able to enter this area. The diameter of the bottom end of the inverted cone 92 is larger than the diameter of the bottom end of the storage funnel 11, so that the inverted cone 92 can better seal the storage funnel 11. When the inverted cone 92 moves, it will pull the strong spring 93, causing the strong spring 93 to stretch. When the strong spring 93 is not deformed, the inverted cone 92 is in contact with the storage funnel 11. At this time, the inverted cone 92 has not moved, and the inverted cone 92 is in contact with the storage funnel 11 to form a sealed space.

[0045] Reference Figures 1-8 A path groove 511 is opened on the outer side of the round rod 51 near the top, and the return member 54 includes a shaft disk 541 rotatably connected to the top of the round rod 51, and a return spring 542 connected between the shaft disk 541 and the top sealing plate 2.

[0046] The bottom of the center of the top sealing plate 2 is fixedly connected with a sleeve 21, and the sleeve 21 is located outside the round rod 51, so that the shaft disc 541 and the return spring 542 are both located inside the sleeve 21, which can provide stable support therefor. A through hole 211 is opened on the sleeve 21, and the inside of the through hole 211 is fixedly clamped with a limit strip 13, and one end of the limit strip 13 is located inside the path groove 511.

[0047] Specifically, the limit strip 13 is installed through the perforation 211, and at the same time the limit strip 13 limits the path groove 511, so that when the round rod 51 moves downward, the path groove 511 is affected by the limit strip 13, and the round rod 51 will move along the path of the path groove 511, then the external connecting rod 71 and the scraper 72 will also move synchronously, and when the round rod 51 moves back, it will also move up and rotate, so that the scraper 72 is on the outside and moves up and down and rotates back and forth, and can be peeled in two directions, more effectively loosening and removing stubborn gravel on the filter element 4, and avoiding unidirectional rotation to clean in only one direction, leaving some gravel that is difficult to remove.

[0048] In addition, when the round rod 51 drives the filter disc 53 to move up and down and rotate, the gravel on the top of the filter disc 53 can be effectively thrown out to ensure that all the gravel is removed.

[0049] Reference Figures 1-8 The vertical length of the path groove 511 is less than the distance from the bottom end of the scraper 72 to the support rod 8. The lower part of the storage funnel 11 is a circular tube 111, and the vertical length of the path groove 511 is equal to the distance from the filter disc 53 to the circular tube 111.

[0050] Specifically, the vertical length of the path groove 511 represents the straight-line length from the top to the bottom of the path groove 511, that is, this length represents the downward movement length of the round rod 51. Then, when the round rod 51 drops this distance, the filter disc 53 will also move this distance synchronously, and the filter disc 53 will reach the position of the circular tube 111. The diameter of the filter disc 53 is the same as the diameter of the circular tube 111, so that the filter disc 53 closes the circular tube 111, and the gravel cannot enter the top of the inverted cone 92 at this time. Then, the filter disc 53 can squeeze and accumulate the gravel between the waste area 12 and the filter disc 53. If the gravel exceeds the range of the circular tube 111, the filter disc 53 can squeeze the inverted cone 92 by squeezing the gravel. At the same time, when the filter disc 53 squeezes the gravel, the lubricant will flow out through the holes of the filter disc 53, avoiding the appearance of a sealed space, and causing the filter disc 53 to be transmitted to the inverted cone 92 by squeezing the lubricant. The lubricant is wasted, and the amount of lubricant above the waste area 12 is continuously reduced by squeezing the accumulated gravel, ensuring that only a large amount of gravel is discharged when the inverted cone 92 moves downward, which can effectively solve the problem of gravel cleaning inside the filtering equipment.

[0051] In addition, when the inverted cone 92 moves downward, due to the high pressure above the filter cylinder 1, the gravel will quickly slide into the waste area 12, and the strong spring 93 ensures sufficient pulling force, so that the inverted cone 92 moves back quickly when the gravel decreases, forming a one-way structure.

[0052] Example 2, reference Figures 1-9 , which is a second embodiment of the present invention, provides a method for preparing a lubricant for PET polyester staple fiber, comprising the following steps:

[0053] Raw material ratio: Determine the types and proportions of base oil, surfactant, antistatic agent, antiwear agent and other additives. At the same time, adjust the proportions of each component according to the specific requirements of polyester staple fiber and the production environment to achieve the best lubrication effect.

[0054] Mixing and stirring: Pour the base oil into the stirring kettle, turn on the stirrer to heat it, and gradually add surfactants, antistatic agents, antiwear agents and other additives according to the ratio, maintain the stirring speed to ensure that all components are fully mixed.

[0055] Filtration and cooling: After mixing is completed, the lubricant is transported to the interior of the filter cylinder 1, and is directed to the top of the force-bearing ball 6 through the guide funnel 31 and the bellows 32. It is then filtered through the filter element 4 to remove insoluble particles and gravel impurities. The filtered lubricant is cooled, and the mixture is heated to an appropriate temperature, so that it reaches room temperature or the specified storage temperature.

[0056] Testing and packaging: Take samples to test the performance indicators of the lubricant, such as viscosity, pH value, anti-wear performance, antistatic performance, etc., to ensure that it meets the requirements of polyester staple fiber production. After passing the test, the lubricant is placed in a clean packaging container, sealed and stored, and labeled with product information.

[0057] The working principle of the present invention is as follows: when the lubricant enters the interior of the filter cylinder 1 through the liquid inlet of the filter cylinder 1, the lubricant is guided into the interior of the bellows 32 through the guide funnel 31, and the lubricant flows downward through the bellows 32. When the lubricant passes through the bellows 32, a pulse pressure will be generated. When the pressure is large, it acts on the force-bearing ball 6, causing the force-bearing ball 6 to move downward after being impacted. At the same time, the force-bearing ball 6 will drive the round rod 51 to move downward synchronously. Due to the downward movement of the round rod 51, the structures connected at both ends of the rod will also be subjected to the downward force. At this time, when the round rod 51 moves downward, the shaft disc 541 at the top of the rod will also move downward, thereby causing the shaft disc 541 to stretch the return spring 542. At the same time, when the round rod 51 moves downward, its external path groove 511 is restricted by the limit bar 13. When the round rod 51 moves downward, it is affected by the path of the path groove 511, thereby causing the round rod 51 to rotate. When the round rod 51 rotates, it is connected to the shaft disk 541 so that the return spring 542 will not be excessively affected by the rotational force. At this time, when the round rod 51 rotates and moves downward, it will drive the external connecting rod 71 and the scraper 72 to move downward and rotate synchronously. When the scraper 72 moves downward and rotates, it will scrape and separate the gravel on the inner surface of the filter element 4 to prevent the filter element 4 from being blocked. At the same time, the filtered gravel will automatically fall and will be guided by the guide hemisphere 10 and the storage funnel 11 to the top of the waste area 12. When the round rod 51 rotates and moves downward, the connecting block 52 and the filter disc 53 will also rotate and move synchronously with the elliptical rod 51. When the connecting block 52 rotates, the opening The square notch 521 can prevent the connecting block 52 from colliding with the support rod 8. At the same time, the lubricant generates a pulse force of varying sizes through the bellows 32. When the force-bearing ball 6 loses the impact stage, the round rod 51 will be pulled back by the return spring 542. At the same time, the path groove 511 outside the round rod 51 will also be restricted by the limit bar 13 when the round rod 51 moves back, so that the round rod 51 will move upward and rotate at the same time, and the scraper 72 connected to it will also move synchronously, so that the filter element 4 will be scraped again by the scraper 72. At the same time, the connecting block 52 and the filter disc 53 will also move up and rotate with the round rod 51, and when the filter disc 53 moves down, the fallen gravel will be pushed and stacked, and the gravel will be continuously accumulated through the reciprocating up and down movement of the filter disc 53. The gravel is densely accumulated. Since the filter disc 53 cannot squeeze the inverted cone 92, the inverted cone 92 will fit with the bottom end of the storage funnel 11, so that the top of the inverted cone 92 is in a sealed state. When the gravel continues to accumulate, the downward position of the filter disc 53 is fixed. When the gravel accumulates to a set value, the filter disc 53 moves downward and squeezes the gravel, thereby squeezing the inverted cone 92, causing the inverted cone 92 to move downward. When the inverted cone 92 moves downward, the strong spring 93 is stretched, and at the same time, the top of the inverted cone 92 is connected to the waste area 12. After the bottom of the gravel loses support, it will move downward quickly, causing the gravel to slide into the inside of the waste area 12. When part of the gravel slides off and the amount of gravel decreases, the filter disc 53 cannot squeeze the inverted cone 92.When the inverted cone 92 loses its grip, the strong spring 93 rebounds, and the inverted cone 92 again fits against the bottom of the storage funnel 11. This process is then repeated continuously. Gravel entering the waste area 12 can be transported and processed by opening the bottom of the filter cylinder 1 through conventional equipment. At the same time, the filter disc 53 itself is in a reciprocating motion. When the filter disc 53 moves upward, the inverted cone 92 also quickly loses its grip and moves back, thus eliminating the need to interrupt the workflow.

[0058] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A PET polyester staple fiber lubricant production filtering device, comprising a filter cylinder (1), characterized in that: The filter cartridge (1) further comprises a top sealing plate (2) fixedly connected to the top end of the filter cylinder (1), a guide flow changer (3) located inside the filter cylinder (1) and fixedly connected to the bottom of the top sealing plate (2), a filter element (4) fixedly connected to the bottom of the guide flow changer (3), a transmission member (5) arranged at the bottom of the top sealing plate (2), a force-bearing ball (6) and a stripper (7) fixedly connected to the outside of the transmission member (5), a support rod (8) fixedly connected to the inside of the filter cylinder (1), a bottom sealing member (9) fixedly connected to the middle of the support rod (8), a guide hemisphere (10) arranged outside the support rod (8), and a storage funnel (11) arranged inside the filter cylinder (1). One end of the member (5) extends to the inside of the guide hemisphere (10), the force-bearing ball (6) is located directly below the guide deflector (3), the stripper (7) is in contact with the filter element (4), the bottom seal (9) is located below the guide hemisphere (10), the space below the storage funnel (11) of the filter cylinder (1) is a waste area (12), the transmission member (5) moves by receiving impact through the force-bearing ball (6), the bottom of the storage funnel (11) is closed by the bottom seal (9), and when the gravel above the bottom seal (9) reaches a set value, the transmission member (5) moves downward so that the top of the bottom seal (9) and the waste area (12) are communicated with each other; The guide flow-changing member (3) comprises a guide funnel (31) fixedly connected to the top sealing plate (2), a bellows (32) fixedly connected to the bottom of the guide funnel (31), and a connecting frame (33) fixedly connected to the outside of the bellows (32), the bellows (32) being tangent to the force-bearing ball (6), and the top of the filter element (4) being fixedly connected to the connecting frame (33); The stripper (7) comprises a connecting rod (71) fixedly connected to the outside of the transmission member (5), and a plurality of scrapers (72) arranged at equal intervals and fixedly connected to the outside of the connecting rod (71), wherein the scrapers (72) fit the inside of the filter element (4); The transmission member (5) comprises a round rod (51) connected to the top sealing plate (2), a connecting block (52) fixedly connected to one end of the round rod (51), a filter disc (53) fixedly connected to the bottom of the connecting block (52), and a return member (54) arranged at the other end of the round rod (51); the end of the round rod (51) close to the bottom sealing member (9) is hollowed out; a square notch (521) is formed on the connecting block (52); the support rod (8) passes through the square notch (521); and the outer diameter of the filter disc (53) is inclined upward in a direction gradually approaching the center of the circle; The bottom seal (9) comprises a mounting rod (91) fixedly connected to the support rod (8), an inverted cone (92) slidably connected to the outside of the mounting rod (91), and a strong spring (93) connected between the mounting rod (91) and the inverted cone (92), wherein the strong spring (93) is located inside the inverted cone (92), the top end of the mounting rod (91) is a threaded head (911), the center of the filter disc (53) is provided with a through hole, and the threaded head (911) passes through the through hole and is connected to the support rod (8); The diameter of the filter disc (53) is the same as the diameter of the bottom end of the storage funnel (11), the diameter of the bottom end of the inverted cone (92) is larger than the diameter of the bottom end of the storage funnel (11), and when the strong spring (93) is not deformed, the inverted cone (92) fits the storage funnel (11); The outer side of the round rod (51) close to the top end is provided with a path groove (511), and the return member (54) comprises a shaft disc (541) rotatably connected to the top end of the round rod (51), and a return spring (542) connected between the shaft disc (541) and the top sealing plate (2).

2. The PET polyester staple fiber lubricant production and filtering device according to claim 1, characterized in that: A sleeve (21) is fixedly connected to the bottom of the center of the top sealing plate (2), the sleeve (21) is located outside the round rod (51), a through hole (211) is opened on the sleeve (21), a limit strip (13) is fixedly engaged inside the through hole (211), and one end of the limit strip (13) is located inside the path groove (511).

3. The PET polyester staple fiber lubricant production and filtering device according to claim 2, characterized in that: The vertical length of the path groove (511) is less than the distance from the bottom end of the scraper (72) to the support rod (8); the lower portion of the storage funnel (11) is a circular tube (111); and the vertical length of the path groove (511) is equal to the distance from the filter disc (53) to the circular tube (111).

4. A method for preparing a lubricant for PET polyester staple fibers, using the lubricant for PET polyester staple fibers according to claim 1 to produce a filter device, characterized in that: The following steps are involved: Raw material ratio: determine the type and ratio of base oil, surfactant, antistatic agent, antiwear agent and other additives to achieve the best lubrication effect; Mixing and stirring: Pour into a stirring kettle, turn on the stirrer to heat, and maintain the stirring speed to make all components fully mixed and heated to a suitable temperature; Filtration and cooling: After the mixing is completed, the lubricant is transported to the interior of the filter cylinder (1), and is guided to the top of the force-bearing ball (6) through the guide funnel (31) and the bellows (32), and then filtered through the filter element (4), and the filtered lubricant is cooled; Testing and packaging: Take samples to test the performance indicators of the lubricant to ensure that it meets the requirements of polyester staple fiber production. After passing the test, the lubricant is placed in a clean packaging container and sealed for storage.

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