A polyester fiber whitening spinning system

Abstract

This invention provides a polyester fiber whitening spinning system, belonging to the field of textile technology. It includes a feeding cylinder and a filter cylinder and a fixing frame mounted on the feeding cylinder. In this invention, the filter cylinder does not rely on centrifugal force generated by rotation to throw material outwards, thus increasing the feeding speed. Simultaneously, the rotating filter cylinder, during its high-speed movement, causes disordered shaking of residual impurities and solid materials inside, effectively preventing the accumulation of impurities and solid materials at the bottom after filtration, which can easily clog the filter holes. An electromagnet, in conjunction with a sliding gear, keeps the filter cylinder stationary after feeding, while its outer mounting ring slides back and forth, working in conjunction with a cleaning frame and brushes on the inner wall to clean the impurities and solid materials clogging the filter holes. This ensures subsequent filtration efficiency and the feeding speed of the material. Furthermore, the cleaning frame drives the brushes to rotate, allowing for cleaning of the filter holes in multiple directions, improving the cleaning effect.

Description

Technical Field

[0001] This invention relates to the field of textile technology, and more specifically, to a polyester fiber whitening spinning system. Background Technology

[0002] Polyester fiber, commonly known as "polyester," is a synthetic fiber made from organic diacids and diols through chemical polycondensation. It belongs to the category of polymer compounds. Polyester fiber has excellent wrinkle resistance and shape retention, making clothing made from it less prone to wrinkling and able to maintain its original shape during wear. Secondly, polyester fiber has high strength and elastic recovery capabilities, making woven fabrics strong and durable while quickly returning to their original shape. Furthermore, polyester fiber is also abrasion-resistant and lint-free, resulting in a cleaner-looking fabric.

[0003] In existing technologies, the production of polyester fibers requires a spinning system to produce raw fiber filaments from fixed raw materials. This spinning system mainly consists of an extruder, filter, metering pump, spinneret, cooling assembly, oiling assembly, and winding assembly. Fiber whitening involves mixing a whitening agent into the raw material during melting. The filter in the spinning system primarily filters the molten material to remove internal solid impurities and unbent molten solid material, thereby improving the quality of subsequent products. However, common filters cannot quickly discharge raw materials during filtration, and excessive accumulation of impurities after filtration can clog the filter pores, affecting subsequent filtration. Therefore, inventing a polyester fiber whitening spinning system to solve these problems has become a pressing issue for those skilled in the art. Summary of the Invention

[0004] To overcome the above shortcomings, the present invention provides a polyester fiber whitening spinning system, which aims to solve the problem that the filter in the spinning system cannot quickly feed the raw materials during filtration.

[0005] This invention is implemented as follows:

[0006] This invention provides a polyester fiber whitening spinning system, including a feeding cylinder and a filter cylinder and a fixing frame disposed on the feeding cylinder. A feeding pipe is installed inside the feeding cylinder near the upper end. Two fixing plates are installed on the side wall of the feeding pipe. A guide rod is installed on one side of the fixing plate. A limit groove is formed on the inner wall of the feeding cylinder.

[0007] The upper side wall of the filter cylinder is equipped with a limiting ring that is rotatably connected to the inner wall of the limiting groove, and the side wall of the filter cylinder is equipped with a first external toothed ring.

[0008] The fixing frame is installed on the upper outer wall of the feeding cylinder. A motor is installed above the fixing frame. A main shaft is installed on the outer wall of the fixing frame. A sliding groove is opened on the side wall of the main shaft. A sliding gear is installed on the outer wall of the sliding groove.

[0009] Preferably, the two ends of the guide rod are fixedly connected to the outer walls of the feed cylinder and the fixing plate, respectively, the upper end of the feed pipe is connected to the outlet of the extruder, and the surfaces of the feed cylinder and the filter cylinder are coated with a self-lubricating coating.

[0010] Preferably, the feeding pipe is inserted into the interior of the filter cylinder, and the filter cylinder has several filter holes on its side wall and bottom.

[0011] Preferably, the output end of the motor is fixedly connected to one end of the main shaft, the outer wall of the main shaft is rotatably connected to the inner wall of the fixed frame, and the sliding gear is meshed with the first external gear ring.

[0012] By adopting the above technical solution, before the molten raw material enters the spinning assembly, the raw material enters the feed pipe through the extruder and then enters the filter cylinder below. At this time, the motor is started to drive the main shaft to rotate the filter cylinder, so that the molten raw material can be quickly thrown outward through the filter holes opened on the side wall, increasing the feeding speed. At the same time, the rotating filter cylinder will randomly shake the residual impurities and solid raw materials inside during high-speed movement, causing their positions to change continuously. This effectively avoids the problem that impurities and solid raw materials accumulate at the bottom and easily cause blockage of the filter holes after filtering the raw material in a static state. This improves the filtration effect and increases the feeding speed. Meanwhile, the raw material thrown out of the filter cylinder enters the outer feed cylinder and flows down along the side wall of the feed cylinder under the action of gravity into the subsequent spinning assembly.

[0013] Preferably, symmetrical electromagnets are installed on the sidewalls of the main shaft near both ends of the chute, and a fixing ring is installed on the outer wall of the feeding pipe. The inner wall of the fixing ring and the outer wall of the guide rod are slidably connected.

[0014] Preferably, a reciprocating lead screw is rotatably connected to one inner wall of the fixed ring, a first gear is installed at the upper end of the reciprocating lead screw, and a second gear is installed at the other end of the reciprocating lead screw.

[0015] Preferably, a collar is rotatably connected to the inner wall of the fixed ring near the reciprocating lead screw, a fourth gear that meshes with the first gear is fixedly connected to the side wall of the collar, a slide rod is slidably connected to the inner wall of the collar, the bottom end of the slide rod is rotatably connected to the inner wall of the feed cylinder, and a third gear that meshes with the first external gear ring is installed on the side wall of the slide rod.

[0016] Preferably, the outer wall of the filter cartridge is slidably connected to an installation ring, the side wall of the installation ring is provided with an installation groove, one side of the installation groove is provided with a drive groove, the inner wall of the installation groove is rotatably connected to a rotating ring, and the outer side wall of the rotating ring is equipped with a second external gear ring that meshes with a second gear.

[0017] Preferably, the inner wall of the drive groove is rotatably connected to the outer wall of the second gear, the outer wall of the reciprocating screw is rotatably connected to the inner wall of the mounting ring, the outer wall of the reciprocating screw is threadedly connected to the inner wall of the feed cylinder, a cleaning frame is installed on the inner side wall of the rotating ring, and several bristles are installed on the side wall of the cleaning frame.

[0018] By adopting the above technical solution, after the raw material is screened and fed once, in order to avoid some impurities accumulating in the holes of the filter cylinder and causing blockage that affects subsequent filtration, the electromagnet above the slide chute is closed while the electromagnet below is energized, causing the electromagnet below and the sliding gear to magnetically attract each other. This causes the sliding gear to slide downwards and disengage from the first outer gear ring on the outside. At the same time, the sliding gear re-engages with the third gear. When the motor is restarted, the collar and the first gear rotate, causing the reciprocating screw and the inner wall of the feeding cylinder to drive downwards. This causes the cleaning frame installed on the inner wall of the mounting ring to move up and down to clean the filter cylinder with the help of brushes. During the movement, the brushes penetrate into the filter holes to clean the blockage of impurities and solid raw materials, preventing the filter holes from becoming blocked. This ensures the subsequent filtration effect and the feeding speed of the raw material. While the reciprocating screw rotates and moves downwards, the second gear at its bottom end and the second outer gear ring on the outside of the rotating ring in the mounting ring rotate. The rotating ring simultaneously drives the cleaning frame and brushes to rotate, thus cleaning the filter holes of the filter cylinder in multiple directions and improving the cleaning effect.

[0019] The beneficial effects of this invention are:

[0020] The filter cartridge continuously rotates the internal raw materials, using centrifugal force to throw the materials outwards, increasing the feeding speed. Simultaneously, the high-speed rotation of the filter cartridge causes disorderly shaking of residual impurities and solid materials, constantly changing their positions. This effectively avoids the problem of impurities and solid materials accumulating at the bottom and clogging the filter holes after filtration in a static state. This improves both filtration efficiency and feeding speed. An electromagnet, in conjunction with a sliding gear, keeps the filter cartridge stationary after feeding, while its outer mounting ring slides back and forth. This, along with the cleaning frame and brushes on the inner wall, cleans the filter holes of clogging impurities and solid materials, preventing blockage and ensuring both filtration efficiency and feeding speed. The cleaning frame also drives the brushes to rotate, cleaning the filter holes in multiple directions, further enhancing the cleaning effect. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of a polyester fiber whitening spinning system provided by an embodiment of the present invention;

[0023] Figure 2 This is a partial half-sectional view of a polyester fiber whitening spinning system provided in an embodiment of the present invention;

[0024] Figure 3 This is a partial structural cross-sectional view of a polyester fiber whitening spinning system provided in an embodiment of the present invention;

[0025] Figure 4 This invention provides a polyester fiber whitening spinning system. Figure 3 Enlarged view of the structure of region A in the middle;

[0026] Figure 5 This is a partial sectional view of a polyester fiber whitening spinning system provided in an embodiment of the present invention;

[0027] Figure 6 This invention provides a polyester fiber whitening spinning system. Figure 5 Enlarged view of the structure of region B in the middle;

[0028] Figure 7 This is a cross-sectional view of the overall structure of a polyester fiber whitening spinning system provided by an embodiment of the present invention;

[0029] Figure 8 This invention provides a polyester fiber whitening spinning system. Figure 7 Enlarged view of the structure of region C in the middle;

[0030] Figure 9 This is a top half-sectional view of the overall structure of a polyester fiber whitening spinning system provided by an embodiment of the present invention;

[0031] Figure 10 This invention provides a polyester fiber whitening spinning system. Figure 9 Enlarged view of the structure of region D in the middle.

[0032] In the diagram: 1. Feeding cylinder; 11. Feeding pipe; 12. Fixing plate; 13. Guide rod; 14. Limiting groove; 2. Filter cylinder; 21. Limiting ring; 22. First external gear ring; 3. Fixing frame; 31. Motor; 32. Main shaft; 321. Slide groove; 33. Electromagnet; 34. Sliding gear; 4. Fixing ring; 41. Reciprocating screw; 411. First gear; 412. Second gear; 42. Slide rod; 421. Third gear; 43. Collar; 431. Fourth gear; 5. Mounting ring; 51. Mounting groove; 52. Drive groove; 53. Rotating ring; 531. Second external gear ring; 54. Cleaning frame; 55. Brush bristles; Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Example, refer to Figures 1-10 A polyester fiber whitening spinning system includes a feeding cylinder 1, a filter cylinder 2 and a fixing frame 3 disposed on the feeding cylinder 1. A feeding pipe 11 is installed inside the feeding cylinder 1 near the upper end. Two fixing plates 12 are installed on the side wall of the feeding pipe 11. A guide rod 13 is installed on one side of the fixing plate 12. A limit groove 14 is opened on the inner wall of the feeding cylinder 1.

[0035] A limiting ring 21 that is rotatably connected to the inner wall of the limiting groove 14 is installed on the upper side wall of the filter cylinder 2, and a first external toothed ring 22 is installed on the side wall of the filter cylinder 2.

[0036] The fixed frame 3 is installed on the upper outer wall of the feeding cylinder 1. A motor 31 is installed above the fixed frame 3. A main shaft 32 is installed on the outer wall of the fixed frame 3. A sliding groove 321 is opened on the side wall of the main shaft 32. A sliding gear 34 is installed on the outer wall of the sliding groove 321.

[0037] Furthermore, the two ends of the guide rod 13 are fixedly connected to the outer walls of the feed cylinder 1 and the fixing plate 12, respectively. The upper end of the feed pipe 11 is connected to the outlet of the extruder. The surfaces of the feed cylinder 1 and the filter cylinder 2 are coated with a self-lubricating coating. The feed pipe 11 is inserted into the interior of the filter cylinder 2. Several filter holes are opened on the side wall and bottom of the filter cylinder 2. The output end of the motor 31 is fixedly connected to one end of the main shaft 32. The outer wall of the main shaft 32 is rotatably connected to the inner wall of the fixing frame 3. The sliding gear 34 is meshed with the first external gear ring 22.

[0038] It should be noted that before the molten raw material enters the spinning assembly, it needs to be screened by the filtration assembly to remove impurities and incompletely melted solids. The raw material enters the feed pipe 11 through the extruder and then enters the filter cylinder 2 below. At this time, the motor 31 drives the main shaft 32 to rotate the outer sliding gear 34. The sliding gear 34 meshes with the first outer gear ring 22 on one side, which drives the filter cylinder 2 to rotate. The rotating filter cylinder 2 increases the centrifugal force of the raw material inside, thereby increasing the filtration speed. This allows the molten raw material to be quickly thrown outward through the filter holes on the side wall, increasing the feeding speed. At the same time, the rotating filter cylinder 2 will randomly shake the remaining impurities and solids inside during high-speed movement, causing their positions to change continuously. This effectively avoids the problem of impurities and solids accumulating at the bottom and clogging the filter holes after filtering the raw material in a static state. This improves the filtration effect and increases the feeding speed. The raw material thrown out of the filter cylinder 2 enters the outer feed cylinder 1 and flows downward along the side wall of the feed cylinder 1 under the action of gravity into the subsequent spinning assembly.

[0039] Furthermore; symmetrical electromagnets 33 are installed on the side walls of the main shaft 32 near both ends of the slide groove 321; a fixing ring 4 is installed on the outer wall of the feeding pipe 11; the inner wall of the fixing ring 4 is slidably connected to the outer wall of the guide rod 13; a reciprocating screw 41 is rotatably connected to one side of the inner wall of the fixing ring 4; a first gear 411 is installed at the upper end of the reciprocating screw 41; a second gear 412 is installed at the other end of the reciprocating screw 41; a collar 43 is rotatably connected to the inner wall of the fixing ring 4 near the reciprocating screw 41; a fourth gear 431 that meshes with the first gear 411 is fixedly connected to the side wall of the collar 43; a slide rod 42 is slidably connected to the inner wall of the collar 43; the bottom end of the slide rod 42 is rotatably connected to the inner wall of the feeding cylinder 1; the side of the slide rod 42... A third gear 421 is installed on the wall and meshes with the first external gear ring 22. A mounting ring 5 is slidably connected to the outer wall of the filter cylinder 2. A mounting groove 51 is opened on the side wall of the mounting ring 5. A drive groove 52 is opened on one side of the mounting groove 51. A rotating ring 53 is rotatably connected to the inner wall of the mounting groove 51. A second external gear ring 531 that meshes with the second gear 412 is installed on the outer wall of the rotating ring 53. The inner wall of the drive groove 52 and the outer wall of the second gear 412 are rotatably connected. The outer wall of the reciprocating screw 41 and the inner wall of the mounting ring 5 are rotatably connected. The outer wall of the reciprocating screw 41 and the inner wall of the feed cylinder 1 are threadedly connected. A cleaning frame 54 is installed on the inner side wall of the rotating ring 53. Several bristles 55 are installed on the side wall of the cleaning frame 54.

[0040] It should be noted that after a single screening and feeding of the raw materials, in order to prevent some impurities from accumulating in the holes of the filter cylinder 2 and causing blockages that affect subsequent filtration, the electromagnet 33 above the slide chute 321 is closed while the electromagnet 33 below is energized, causing the electromagnet 33 below to magnetically attract the sliding gear 34. This causes the sliding gear 34 to slide downwards and disengage from the outer first external gear ring 22. At the same time, the sliding gear 34 re-engages with the third gear 421. When the motor 31 is restarted, the sliding gear 34 will engage with the third gear 421 and rotate. The third gear 421 drives the slide rod 42 and the outer collar 43 to rotate. While the collar 43 rotates, its outer fourth gear 431 engages with the first gear 411 and rotates. During the rotation of the first gear 411, the reciprocating screw 41 and the inner wall of the feeding cylinder 1 are transmitted to each other, thus sliding downwards. The movement of the reciprocating screw 41 causes the upper fixed ring 4 to move. As the fixed ring 4 slides down, it drives the collar 43 and the outer fourth gear 431 to move downward. The downward-moving reciprocating screw 41 drives the mounting ring 5 on the outer side of the filter cylinder 2 to rotate. The cleaning frame 54 installed on the inner wall of the mounting ring 5, together with the brush 55, moves up and down to clean the filter cylinder 2. During the movement, the brush 55 extends into the filter holes to clean the blockage of impurities and solid raw materials, preventing the filter holes from becoming blocked. This ensures the subsequent filtration effect and the feeding speed of the raw materials. While the reciprocating screw 41 rotates and moves downward, the second gear 412 at its bottom end and the second external gear ring 531 on the outer side of the rotating ring 53 in the mounting ring 5 rotate. The rotating ring 53 simultaneously drives the cleaning frame 54 and the brush 55 to rotate. This allows the filter holes of the filter cylinder 2 to be cleaned in multiple directions, improving the cleaning effect.

[0041] The working principle of this polyester fiber whitening spinning system:

[0042] Before the molten raw material enters the spinning assembly, it needs to be screened by a filtration assembly to remove impurities and incompletely melted solids. The raw material enters the feed pipe 11 through the extruder and then enters the filter cylinder 2 below. At this time, the motor 31 starts and drives the main shaft 32 to rotate the outer sliding gear 34. The sliding gear 34 meshes with the first external gear ring 22 on one side, which in turn drives the filter cylinder 2 to rotate. The rotation of the filter cylinder 2 increases the centrifugal force of the raw material inside, thereby increasing the filtration speed. This allows the molten raw material to be quickly thrown outward through the filter holes on the side wall, increasing the feeding speed. At the same time, the rotating filter cylinder 2 will randomly shake the remaining impurities and solids inside during its high-speed movement. This constantly changes the position of the material, effectively preventing impurities and solid materials from accumulating at the bottom and clogging the filter holes after filtration in a static state. This improves the filtration effect and increases the feeding speed. Simultaneously, the material ejected from filter cylinder 2 enters the outer feeding cylinder 1 and flows downwards along the side wall of feeding cylinder 1 under gravity into the subsequent textile assembly. After a single screening and feeding of the material, to prevent impurities from accumulating in the holes of filter cylinder 2 and causing blockages that affect subsequent filtration, the electromagnet 33 above the chute 321 is closed while the electromagnet 33 below is energized, causing the lower electromagnet 33 to magnetically attract the sliding gear 34. 34 slides downwards and disengages from the outer first external gear ring 22. Simultaneously, the sliding gear 34 re-engages with the third gear 421. Restarting the motor 31 at this point causes the sliding gear 34 to mesh with the third gear 421 and rotate. The third gear 421 drives the sliding rod 42 and the outer collar 43 to rotate. Simultaneously, the outer fourth gear 431 of the collar 43 meshes with the first gear 411 and rotates. During the rotation of the first gear 411, the reciprocating screw 41 and the inner wall of the feed cylinder 1 are transmitted downwards, causing the upper fixed ring 4 to move. As the fixed ring 4 slides down, it drives the collar 43 and the outer fourth gear 431 to move downwards. The reciprocating screw 41 drives the mounting ring 5 on the outer side of the filter cylinder 2 to rotate. The cleaning frame 54 installed on the inner side wall of the mounting ring 5, together with the brush 55, moves the filter cylinder 2 up and down to clean it. During the movement, the brush 55 extends into the filter holes to clean the clogged impurities and solid raw materials, preventing the filter holes from becoming clogged. This ensures the subsequent filtration effect and the feeding speed of the raw materials. While the reciprocating screw 41 rotates and moves downward, the second gear 412 at its bottom end and the second external gear ring 531 on the outer side of the rotating ring 53 in the mounting ring 5 rotate. The rotating ring 53 simultaneously drives the cleaning frame 54 and the brush 55 to rotate. This allows the filter holes of the filter cylinder 2 to be cleaned in multiple directions, improving the cleaning effect.

[0043] It should be noted that the specific model and specifications of the motor need to be selected and determined based on the actual specifications of the device. The specific selection and calculation method adopts the existing technology in this field, so it will not be described in detail here.

[0044] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the invention by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. A polyester fiber whitening spinning system comprising a feed block (1) and a filter block (2) and a fixing frame (3) arranged on the feed block (1), characterized in that, The feed cylinder (1) has a feed pipe (11) installed inside near the upper end. Two fixing plates (12) are installed on the side wall of the feed pipe (11). A guide rod (13) is installed on one side of the fixing plate (12). A limit groove (14) is opened on the inner wall of the feed cylinder (1). The upper side wall of the filter cylinder (2) is equipped with a limiting ring (21) that is rotatably connected to the inner wall of the limiting groove (14), and the side wall of the filter cylinder (2) is equipped with a first external toothed ring (22). The fixing frame (3) is installed on the upper outer wall of the feeding cylinder (1). A motor (31) is installed above the fixing frame (3). A main shaft (32) is installed on the outer wall of the fixing frame (3). A sliding groove (321) is opened on the side wall of the main shaft (32). A sliding gear (34) is installed on the outer wall of the sliding groove (321). The output end of the motor (31) is fixedly connected to one end of the main shaft (32), the outer wall of the main shaft (32) is rotatably connected to the inner wall of the fixed frame (3), and the sliding gear (34) is meshed with the first external gear ring (22). Symmetrical electromagnets (33) are installed on the side walls of the main shaft (32) near the two ends of the slide groove (321). A fixing ring (4) is installed on the outer wall of the feeding pipe (11). The inner wall of the fixing ring (4) and the outer wall of the guide rod (13) are slidably connected. A reciprocating screw (41) is rotatably connected to one side of the inner wall of the fixed ring (4). A first gear (411) is installed at the upper end of the reciprocating screw (41), and a second gear (412) is installed at the other end of the reciprocating screw (41). The fixed ring (4) is rotatably connected to the inner wall of the reciprocating screw (41) with a collar (43). The side wall of the collar (43) is fixedly connected to a fourth gear (431) that meshes with the first gear (411). The inner wall of the collar (43) is slidably connected to a slide rod (42). The bottom end of the slide rod (42) is rotatably connected to the inner wall of the feed cylinder (1). The side wall of the slide rod (42) is equipped with a third gear (421) that meshes with the first external gear ring (22). The outer wall of the filter cylinder (2) is slidably connected to an installation ring (5), the side wall of the installation ring (5) is provided with an installation groove (51), one side of the installation groove (51) is provided with a drive groove (52), the inner wall of the installation groove (51) is rotatably connected to a rotating ring (53), and the outer wall of the rotating ring (53) is equipped with a second external gear ring (531) that meshes with a second gear (412). The inner wall of the drive groove (52) is rotatably connected to the outer wall of the second gear (412), the outer wall of the reciprocating screw (41) is rotatably connected to the inner wall of the mounting ring (5), the outer wall of the reciprocating screw (41) is threadedly connected to the inner wall of the feed cylinder (1), a cleaning frame (54) is installed on the inner side wall of the rotating ring (53), and several bristles (55) are installed on the side wall of the cleaning frame (54). After the raw materials are screened and fed once, in order to avoid some impurities accumulating in the holes of the filter cylinder (2) and causing blockage and affecting subsequent filtration, the electromagnet (33) above the slide groove (321) is closed while the electromagnet (33) below is energized. The electromagnet (33) below and the sliding gear (34) are magnetically attracted, so that the sliding gear (34) slides down and disengages from the first outer gear ring (22) on the outside. At the same time, the sliding gear (34) re-meets with the third gear (421).

2. The polyester fiber whitening spinning system according to claim 1, characterized in that, The two ends of the guide rod (13) are fixedly connected to the outer walls of the feed cylinder (1) and the fixing plate (12), respectively. The upper end of the feed pipe (11) is connected to the outlet of the extruder. The surfaces of the feed cylinder (1) and the filter cylinder (2) are coated with a self-lubricating coating.

3. The polyester fiber whitening spinning system according to claim 2, characterized in that, The feeding pipe (11) is inserted into the interior of the filter cylinder (2), and the filter cylinder (2) has several filter holes on its side wall and bottom.

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