Gradient aperture melt filter for non-woven fabric production

Abstract

The invention relates to the technical field of melt filters, in particular to a gradient aperture melt filter for non-woven fabric production, which comprises a filter seat, a first communication cavity and a second communication cavity are formed in the filter seat, a plurality of connecting discs are movably connected in the filter seat, a plurality of mounting through grooves are formed in the upper ends of the connecting discs, and the mounting through grooves are communicated with the first communication cavity and the second communication cavity. Filtering mechanisms are movably connected into the mounting through grooves, and the filtering apertures of the filtering mechanisms in the multiple connecting discs are arranged in a gradient mode from large to small. Through gradient arrangement of filtering apertures of filtering mechanisms in a plurality of connecting discs from large to small, impurities with different particle sizes are filtered in different filtering mechanisms, and meanwhile, when the filtering efficiency is reduced due to blockage of the filtering mechanisms, a magnetic attraction detection mechanism enables the connecting discs to rotate, so that the filtering efficiency is improved. A new filtering mechanism is transferred into the first communication cavity, and the blocked filtering mechanism is rotated into the second communication cavity to be overturned and washed, so that the solution is connected and filtered by the filtering mechanism, and the working efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of melt filters, and particularly to a gradient pore size melt filter for non-woven fabric production. Background Art

[0002] As disclosed in the Chinese patent with the publication number CN222384272U, a melt filter for non-woven fabric production is disclosed, which includes a filter barrel. Support feet are respectively provided at the four corners of the bottom surface of the filter barrel. An inlet pipe is provided on the left side of the top surface of the filter barrel, and a vacuum pump is provided on the front side of the top surface of the filter barrel.

[0003] However, the above solution has the following deficiencies: In the above patent, when the melt reaches the inside of the filter barrel, the large piston plate moves in a piston motion driven by the first electric push rod, so that the melt is drawn to the lower end inside the filter barrel, allowing the melt to quickly pass through the filter, and reaching the outside through the cooperation of the first discharge pipe and the second discharge pipe. However, when the filtration volume is large, impurities of different sizes are filtered in the same filter screen, which accelerates the service life of the filter screen, increases the number of replacements or cleanings of the filter screen, and reduces the working efficiency. Therefore, we introduce a gradient pore size melt filter for non-woven fabric production. Summary of the Invention

[0004] The purpose of the present invention is to provide a gradient pore size melt filter for non-woven fabric production to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions: A gradient pore size melt filter for non-woven fabric production includes a filter base. A first communication cavity and a second communication cavity are formed inside the filter base. A plurality of connecting disks are movably connected inside the filter base. A plurality of installation through grooves are formed inside the upper end of the connecting disk. Filter mechanisms are movably connected inside the installation through grooves. The filter pore sizes of the filter mechanisms inside the plurality of connecting disks are arranged in a gradient from large to small. A magnetic attraction detection mechanism is provided below the filter mechanism. The magnetic attraction detection mechanism is movably connected inside the first communication cavity. When the filtration efficiency of the filter mechanism decreases due to blockage, the magnetic attraction detection mechanism causes the connecting disk to rotate, and a new filter mechanism is transferred into the first communication cavity; The upper end of the filtering mechanism is fixedly connected to the sliding rod, and the upper end of the sliding rod is slidably connected in the arc-shaped inclined groove. The arc-shaped inclined groove is opened in the lower end of the filtering mechanism. When the connecting disk rotates, the sliding rod will be extruded and move downward along the arc-shaped inclined groove, so that the upper end of the magnetic attraction detection mechanism is separated from the lower end of the filtering mechanism. One end of the filtering mechanism is connected to the positioning and rotating mechanism, and the positioning and rotating mechanism is slidably connected in the T-shaped ring groove. The T-shaped ring groove is opened in the filter seat. Two toothed plates are fixedly connected to the lower end of the T-shaped ring groove. When the connecting disk drives the filtering mechanism to rotate, the positioning and rotating mechanism will move accordingly. When the positioning and rotating mechanism moves to the position of the toothed plate, the positioning and rotating mechanism will drive the filtering mechanism to rotate and turn over; A liquid guiding and connecting mechanism is arranged inside the upper end of the filter seat. The lower end of the liquid guiding and connecting mechanism is communicated with the first communication cavity, and a spraying mechanism is arranged at the upper end of the second communication cavity.

[0006] Preferably, the filtering mechanism includes a connecting ring. The connecting ring is arranged in the installation through groove. Both ends of the connecting ring are fixedly connected with connecting rods. The connecting rods are movably connected in the installation through groove. An installation ring is movably installed inside the connecting ring. A filter screen is fixedly connected to the inner side of the installation ring. A first magnetic block is fixedly connected to the lower end of the filter screen. A positioning ring is arranged on the upper side of the installation ring. The positioning ring is movably installed at the upper end of the connecting ring. The arc-shaped inclined groove is opened at the lower end of the connecting ring.

[0007] Preferably, the magnetic attraction detection mechanism includes a connecting box. A first T-shaped rod is movably connected inside the connecting box. The upper end of the first T-shaped rod extends out of the connecting box and is fixedly connected with a second magnetic block. The second magnetic block attracts the first magnetic block. A support spring is fixedly connected to the lower end of the first T-shaped rod. The lower end of the support spring is fixedly connected to the inner side of the connecting box. A pressing switch is arranged inside the support spring. The pressing switch is fixedly connected to the inner side of the connecting box.

[0008] Preferably, second T-shaped rods are fixedly connected to both ends of the connecting box. The ends of the second T-shaped rods far from the connecting box are slidably connected in the T-shaped grooves. The T-shaped grooves are opened in the first communication cavity. A connecting spring is fixedly connected in the T-shaped grooves. The upper end of the connecting spring is fixedly connected to the lower end of the second T-shaped rod. Baffles are fixedly connected to both the upper and lower ends of the second T-shaped rod. The baffles are slidably connected in the storage grooves. The storage grooves are opened in the filter seat.

[0009] Preferably, the positioning and rotating mechanism includes a gear. One end of a connecting rod passes through the connecting disk and extends into the T-shaped ring groove, and is fixedly connected with the gear. The gear is slidably connected in the T-shaped ring groove. Two positioning rods are fixedly connected to the end of the gear far from the connecting rod. The positioning rods are slidably connected in the positioning grooves. The positioning grooves are opened in the T-shaped ring groove.

[0010] Preferably, the liquid guiding connection mechanism includes a connecting pipe which is fixedly connected inside the upper end of the filtering base. The lower end of the connecting pipe communicates with a connecting cavity which is arranged inside the filtering base. A connecting block is slidably connected inside the connecting cavity. Two arc-shaped through grooves are formed inside the upper end of the connecting block. A return spring is sleeved outside the connecting block. The upper end of the return spring is fixedly connected with the connecting block, and the lower end is fixedly connected with the connecting cavity.

[0011] Preferably, a heating block is fixedly connected inside the connecting block, and a plurality of heat conduction needles are fixedly connected inside the connecting block. One end of each heat conduction needle extends into the arc-shaped through groove, and the other end is connected with the heating block.

[0012] Preferably, the spraying mechanism includes a spray head which is fixedly connected to the upper end of the second communication cavity. The upper end of the spray head communicates with a liquid guiding pipe. One end of the liquid guiding pipe away from the spray head extends into the external environment. The second communication cavity communicates with a drain pipe which is fixedly connected inside the filtering base. One end of the drain pipe away from the second communication cavity extends into the external environment.

[0013] Preferably, the upper end of the connecting disc is fixedly connected to the output end of a driving motor. The driving motor is fixedly installed inside the filtering base. A plurality of heating rings are fixedly connected inside the filtering base. A plurality of through cavities are formed inside the filtering base, and movable covers are clamped inside the through cavities.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: through the gradient setting of the filtering apertures of the filtering mechanisms in a plurality of connecting discs from large to small, impurities with different particle sizes are filtered by different filtering mechanisms, realizing the gradient filtration of the melt. At the same time, when the filtering efficiency is reduced due to blockage of the filtering mechanism, the magnetic attraction detection mechanism will cause the connecting disc to rotate, transfer a new filtering mechanism into the first communication cavity, and the blocked filtering mechanism rotates into the second communication cavity for turning and flushing, realizing the continuous filtration of the melt by the filtering mechanism and improving the working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic cross-sectional structure diagram of the present invention; Figure 2 of the present invention Figure 1 is an enlarged structure diagram at A in Figure 3 of the present invention Figure 1 is an enlarged structure diagram at B in Figure 4 of the present invention Figure 1 is an enlarged structure diagram at C in Figure 5 is a schematic cross-sectional structure diagram of the connection relationship between the connection box and the second T-shaped rod of the present invention; Figure 6Schematic diagram of the state of the filter screen of the present invention during the flipping process into the second communication cavity; Figure 7 Schematic cross-sectional structure diagram of the position of the second communication cavity of the present invention; Figure 8 Schematic three-dimensional structure diagram of the installation state of the filter screen of the present invention; Figure 9 Schematic three-dimensional structure diagram of the disassembled state of the connection relationship between the filter screen and the connection disk of the present invention; Figure 10 Schematic three-dimensional structure diagram of the position of the spray head of the present invention; Figure 11 Schematic three-dimensional structure diagram of the connection relationship between the connecting ring and the gear of the present invention; Figure 12 Schematic three-dimensional structure diagram of the position of the arc-shaped inclined groove of the present invention.

[0016] In the figure: 1, filter seat; 2, filter screen; 3, connection box; 4, first communication cavity; 5, heating ring; 6, connection block; 7, connection disk; 8, second communication cavity; 9, through cavity; 10, connection spring; 11, spray head; 12, drive motor; 13, first magnetic block; 14, positioning rod; 15, gear; 16, positioning groove; 17, support spring; 18, pressing switch; 19, first T-shaped rod; 20, second magnetic block; 21, second T-shaped rod; 22, sliding rod; 23, heating block; 24, arc-shaped inclined groove; 25, connecting ring; 26, connecting rod; 27, positioning ring; 28, T-shaped groove; 29, baffle; 30, storage groove; 31, movable cover; 32, liquid guide pipe; 33, drain pipe; 34, toothed plate; 35, T-shaped ring groove; 36, installation through groove; 37, connecting pipe; 38, arc-shaped through groove; 39, connection cavity; 40, installation ring; 41, heat conduction needle; 42, return spring. Detailed implementation manners

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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 the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0018] Please refer to Figure 1-12 , the present invention provides a technical solution: Embodiment 1

[0019] A gradient pore size melt filter for non-woven fabric production, comprising a filter seat 1. A first communication cavity 4 and a second communication cavity 8 are formed in the filter seat 1. A plurality of connecting disks 7 are movably connected in the filter seat 1. A plurality of installation through grooves 36 are formed in the upper end of the connecting disk 7. A filtering mechanism is movably connected in the installation through grooves 36. The filtering pore sizes of the filtering mechanisms in the plurality of connecting disks 7 are set in a gradient manner from large to small. When the melt enters the uppermost filtering mechanism, it will be roughly filtered first. The middle and lowermost filtering mechanisms will filter the melt again. A magnetic attraction detection mechanism is arranged below the filtering mechanism. The magnetic attraction detection mechanism is movably connected in the first communication cavity 4. When the filtering efficiency of the filtering mechanism decreases due to blockage, the magnetic attraction detection mechanism will cause the connecting disk 7 to rotate, and transfer a new filtering mechanism into the first communication cavity 4; The upper end of the filtering mechanism is fixedly connected to a sliding rod 22. The upper end of the sliding rod 22 is movably connected to a roller. Through the arrangement of the roller, the sliding rod 22 can move along the lower end of the connecting disk 7. The upper end of the sliding rod 22 is slidably connected in an arc-shaped inclined groove 24. The arc-shaped inclined groove 24 is formed in the lower end of the filtering mechanism. The arc-shaped inclined groove 24 is arc-shaped and has a slope inside. When the connecting disk 7 rotates, the sliding rod 22 will be extruded and move downward along the arc-shaped inclined groove 24, so that the upper end of the magnetic attraction detection mechanism is separated from the lower end of the filtering mechanism. One end of the filtering mechanism is connected to a positioning rotation mechanism. The positioning rotation mechanism is slidably connected in a T-shaped ring groove 35. The T-shaped ring groove 35 is formed in the filter seat 1. Two toothed plates 34 are fixedly connected to the lower end of the T-shaped ring groove 35. When the connecting disk 7 drives the filtering mechanism to rotate, the positioning rotation mechanism will move accordingly. When the positioning rotation mechanism moves to the position of the toothed plate 34, the positioning rotation mechanism will drive the filtering mechanism to rotate and turn over, so that the melt blocked and deposited in the filtering mechanism will fall into the second communication cavity 8. A liquid guiding connection mechanism is arranged in the upper end of the filter seat 1. The lower end of the liquid guiding connection mechanism is communicated with the first communication cavity 4. Through the liquid guiding connection mechanism, the melt is guided into the filtering mechanism for filtering. A spraying mechanism is arranged at the upper end of the second communication cavity 8. When the blocked filtering mechanism is rotated by the connecting disk 7 into the second communication cavity 8, the spraying mechanism will spray water outward to wash the filtering mechanism at this time. Embodiment 2

[0020] On the basis of Embodiment 1, in order to separately filter out particles of different sizes in the melt, the filtering mechanism includes a connecting ring 25 disposed in the installation through groove 36. Both ends of the connecting ring 25 are fixedly connected with connecting rods 26, and the connecting rods 26 are movably connected in the installation through groove 36. An installation ring 40 is movably installed in the connecting ring 25. A filter net 2 is fixedly connected to the inner side of the installation ring 40. The material of the filter net 2 is a high-temperature resistant material, such as polyimide. A first magnetic block 13 is fixedly connected to the lower end of the filter net 2. Since the filtering apertures of the three filter nets 2 from top to bottom are arranged in a gradient from large to small, the uppermost filter net 2 will first perform a coarse filtration on the melt, and the two lower filter nets 2 will perform a fine filtration on the melt again, so that particles of different fineness are filtered in different filter nets 2, preventing particles of different sizes from being filtered in the same filter net 2, and when the filtration amount is large, causing the rapid blockage of the filter net 2; A positioning ring 27 is provided on the upper side of the installation ring 40. The positioning ring 27 is movably installed at the upper end of the connecting ring 25. The positioning ring 27 is installed at the upper end of the connecting ring 25 by screws. By removing the positioning ring 27, the installation ring 40 installed with the filter net 2 can be removed and replaced. An arc-shaped inclined groove 24 is opened at the lower end of the connecting ring 25. The rotation of the connecting disk 7 drives the connecting ring 25 to rotate. Since the sliding rod 22 is slidably connected in the arc-shaped inclined groove 24, during the rotation of the connecting ring 25, the sliding rod 22 will be pushed downward by the arc-shaped inclined groove 24; The magnetic attraction detection mechanism includes a connecting box 3. A first T-shaped rod 19 is movably connected in the connecting box 3. The upper end of the first T-shaped rod 19 extends out of the connecting box 3 and is fixedly connected with a second magnetic block 20. The second magnetic block 20 attracts the first magnetic block 13. A support spring 17 is fixedly connected to the lower end of the first T-shaped rod 19. The lower end of the support spring 17 is fixedly connected to the inner side of the connecting box 3. A pressing switch 18 is provided inside the support spring 17. The pressing switch 18 is fixedly connected to the inner side of the connecting box 3. The pressing switch 18 can be selected according to the actual usage situation for corresponding dimensions and models. When one of the filter nets 2 has a reduced filtration efficiency due to blockage, at this time, the melt will accumulate in the filter net 2. As the accumulated amount of the melt increases, the lower end of the filter net 2 will move downward. Since the first magnetic block 13 and the second magnetic block 20 are attracted together, when the lower end of the filter net 2 moves downward, the first T-shaped rod 19 will move downward along the connecting box 3. At this time, the support spring 17 is compressed. When the lower end of the first T-shaped rod 19 touches the pressing switch 18, the pressing switch 18 will be pressed; Both ends of the connection box 3 are fixedly connected with second T-shaped rods 21. One end of the second T-shaped rod 21 away from the connection box 3 is slidably connected in the T-shaped groove 28. The T-shaped groove 28 is opened in the first communication cavity 4. A connection spring 10 is fixedly connected in the T-shaped groove 28. The upper end of the connection spring 10 is fixedly connected with the lower end of the second T-shaped rod 21. Both the upper and lower ends of the second T-shaped rod 21 are fixedly connected with baffles 29. The baffles 29 are slidably connected in the storage groove 30. The storage groove 30 is opened in the filter base 1. By the baffles 29 being slidably connected in the storage groove 30, the melt will not enter the T-shaped groove 28. The sliding rod 22 drives the second T-shaped rod 21 to move. At this time, the connection box 3 drives the second magnet 20 to move downward synchronously. At this time, the second magnet 20 disconnects from the first magnet 13; The positioning and rotating mechanism includes a gear 15. One end of a connecting rod 26 passes through the connecting disk 7 and extends into the T-shaped ring groove 35, and is fixedly connected with the gear 15. The gear 15 is slidably connected in the T-shaped ring groove 35. Two positioning rods 14 are fixedly connected to the end of the gear 15 away from the connecting rod 26. The positioning rods 14 are slidably connected in the positioning groove 16. The positioning groove 16 is opened in the T-shaped ring groove 35. When the connecting disk 7 drives the connecting ring 25 to rotate, the connecting rod 26 will drive the gear 15 to move along the T-shaped ring groove 35. When the connecting disk 7 drives the blocked filter net 2 into the second communication cavity 8, at this time, the positioning rod 14 will slide out of the positioning groove 16, and at the same time, the gear 15 will mesh with the toothed plate 34. As the connecting disk 7 rotates, the gear 15 will rotate along the toothed plate 34. At this time, the connecting ring 25 will be driven to rotate, and the filter net 2 will be flipped again; The liquid guiding and connecting mechanism includes a connecting pipe 37. The connecting pipe 37 is fixedly connected inside the upper end of the filter base 1. The lower end of the connecting pipe 37 is communicated with the connecting cavity 39. The connecting cavity 39 is opened in the filter base 1. A connecting block 6 is slidably connected in the connecting cavity 39. Two arc-shaped through grooves 38 are opened in the upper end of the connecting block 6. A return spring 42 is sleeved outside the connecting block 6. The upper end of the return spring 42 is fixedly connected with the connecting block 6, and the lower end is fixedly connected with the connecting cavity 39. The melt is introduced into the connecting pipe 37. The melt entering the connecting pipe 37 will push the connecting block 6 upward. When the connecting block 6 moves downward, at this time, the melt will enter the connecting cavity 39, and at the same time, the lower end of the connecting block 6 will be clamped with the mounting ring 40. At this time, the melt will enter the uppermost filter net 2 through the arc-shaped through grooves 38; A heating block 23 is fixedly connected in the connecting block 6. A number of heat conducting needles 41 are fixedly connected in the connecting block 6. One end of the heat conducting needle 41 extends into the arc-shaped through groove 38, and the other end is connected with the heating block 23. The heating block 23 heats a number of heat conducting needles 41 to prevent the melt from solidifying due to cooling in the arc-shaped through groove 38. At the same time, a number of heat conducting needles 41 can also pierce the bubbles in the melt entering the arc-shaped through groove 38; The spraying mechanism includes a spray head 11, which is fixedly connected to the upper end of the second communication cavity 8. The upper end of the spray head 11 is communicated with a liquid guide pipe 32. One end of the liquid guide pipe 32 away from the spray head 11 extends into the external environment. The second communication cavity 8 is communicated with a drain pipe 33. The drain pipe 33 is fixedly connected to the inside of the filter base 1. One end of the drain pipe 33 away from the second communication cavity 8 extends into the external environment. The external water source enters the spray head 11 through the liquid guide pipe 32. At this time, the spray head 11 sprays the water source outward to wash the inverted filter net 2. After the washing is completed, the spray head 11 stops spraying water outward. At the same time, several heating rings 5 in the filter base 1 heat the inside of the filter base 1. The waste water generated by the washing will be discharged through the drain pipe 33; The upper end of the connecting disk 7 is fixedly connected to the output end of the driving motor 12. The driving motor 12 is fixedly installed in the filter base 1. During actual use, the driving motor 12 can be selected with appropriate dimensions and models. Several heating rings 5 are fixedly connected to the inside of the filter base 1. Several through cavities 9 are formed in the filter base 1. A movable cover 31 is clamped in the through cavity 9. When the filter net 2 needs to be replaced, the damaged filter net 2 can be removed by opening the movable cover 31, and a new filter net 2 can be installed.

[0021] Working principle: During use, the melt is introduced into the connecting pipe 37. The melt entering the connecting pipe 37 will push the connecting block 6 to move upward. When the connecting block 6 moves downward, at this time the melt will enter the connecting cavity 39. At the same time, the lower end of the connecting block 6 will be clamped with the mounting ring 40. At this time, the melt will enter the uppermost filter net 2 through the arc-shaped through groove 38. Since the filtering apertures of the three filter nets 2 from top to bottom are set in a gradient from large to small, the uppermost filter net 2 will first perform a rough filtration on the melt, and the lower two filter nets 2 will perform a fine filtration on the melt again. The melt passes through the three filter nets 2 in sequence and then is discharged; When one of the filter nets 2 has a reduced filtration efficiency due to blockage, at this time the melt will accumulate in the filter net 2. As the accumulated amount of the melt increases, the lower end of the filter net 2 will move downward. Since the first magnetic block 13 and the second magnetic block 20 are attracted to each other, when the lower end of the filter net 2 moves downward, the first T-shaped rod 19 will move downward along the connecting box 3. At this time, the support spring 17 is compressed. When the lower end of the first T-shaped rod 19 touches the pressing switch 18, at this time the pressing switch 18 will be pressed. After the pressing switch 18 is pressed, it will control the melt to stop entering the connecting pipe 37. At this time, under the elastic force of the reset spring 42, the connecting block 6 will move upward, so that its lower end is disengaged from the clamping with the mounting ring 40. At the same time, the driving motor 12 will start and drive the connecting disk 7 to rotate counterclockwise; The rotation of the connecting disc 7 drives the connecting ring 25 to rotate. Since the sliding rod 22 is slidably connected in the arc-shaped inclined groove 24, during the rotation of the connecting ring 25, the sliding rod 22 will be pushed downward by the arc-shaped inclined groove 24. The sliding rod 22 drives the second T-shaped rod 21 to move. At this time, the connecting box 3 drives the second magnet 20 to move downward synchronously. At this time, the second magnet 20 is disconnected from the first magnet 13. At the same time, when the connecting disc 7 drives the connecting ring 25 to rotate, the connecting rod 26 will drive the gear 15 to move along the T-shaped ring groove 35. Since the positioning rod 14 is slidably connected in the positioning groove 16, during the rotation of the connecting disc 7, the mounting ring 40 will not rotate or shake. When the connecting disc 7 drives the clogged filter net 2 into the second communication cavity 8, at this time, the positioning rod 14 will slide out of the positioning groove 16, and at the same time, the gear 15 will mesh with the toothed plate 34. As the connecting disc 7 rotates, the gear 15 will rotate along the toothed plate 34. At this time, the connecting ring 25 will be driven to rotate, and the filter net 2 will be flipped again, and the melt accumulated in the filter net 2 will fall downward. When the flipping of the filter net 2 is completed, the gear 15 will leave the surface of the toothed plate 34, and at the same time, the positioning rod 14 will re-enter the positioning groove 16. When the flipped filter net 2 moves to the lower side of the spray head 11, the connecting disc 7 stops rotating; The external water source enters the spray head 11 through the liquid guide pipe 32. At this time, the spray head 11 sprays water outward to wash the flipped filter net 2. After the washing is completed, the spray head 11 stops spraying water outward. At the same time, several heating rings 5 in the filter seat 1 heat the inside of the filter seat 1 to prevent the melt from solidifying and also dry the filter net 2. When the connecting disc 7 rotates again, the positioning rod 14 will slide out of the positioning groove 16 again, and the gear 15 will contact the toothed plate 34 again. At this time, the washed filter net 2 will be flipped again, so that the first magnet 13 is flipped to the lower side of the filter net 2; During the rotation of the connecting disc 7, the sliding rod will always move along the lower end of the connecting disc 7 and the lower end of the connecting ring 25. When the new filter net 2 rotates into the first communication cavity 4, at this time, under the elastic force of the connecting spring 10, the upper end of the sliding rod 22 will enter the arc-shaped inclined groove 24, and at the same time, the connecting box 3 will drive the second magnet 20 to move upward and attract the first magnet 13, and the lower end of the filter net 2 will be pushed upward by a certain distance. When the filter net 2 moves downward due to blockage, the pressing switch 18 will be pressed again, causing the connecting disc 7 to rotate again to complete the switching of the filter net 2.

[0022] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gradient aperture melt filter for nonwoven fabric production, comprising a filter seat, characterized in that: The filter seat is provided with a first connecting cavity and a second connecting cavity, the filter seat is movably connected with a plurality of connecting disks, the upper end of the connecting disk is provided with a plurality of mounting slots, the mounting slots are movably connected with a filter mechanism, the filter apertures of the filter mechanisms in the plurality of connecting disks are arranged in a gradient from large to small, a magnetic detection mechanism is provided at the lower side of the filter mechanism, the magnetic detection mechanism is movably connected with the first connecting cavity, when the filter mechanism is clogged and the filtering efficiency is reduced, the magnetic detection mechanism will cause the connecting disk to rotate, and transfer a new filter mechanism into the first connecting cavity; The upper end of the filter mechanism is fixedly connected to the slide rod, and the upper end of the slide rod is slidably connected to the arc-shaped inclined groove, and the arc-shaped inclined groove is arranged in the lower end of the filter mechanism. When the connecting disk rotates, the slide rod will be squeezed and moved downward along the arc-shaped inclined groove, so that the upper end of the magnetic suction detection mechanism is separated from the lower end of the filter mechanism. One end of the filter mechanism is connected to the positioning and rotating mechanism, and the positioning and rotating mechanism is slidably connected to the T-shaped ring groove, and the T-shaped ring groove is arranged in the filter seat. The lower end of the T-shaped ring groove is fixedly connected to two tooth plates. When the connecting disk drives the filter mechanism to rotate, the positioning and rotating mechanism will follow the movement. When the positioning and rotating mechanism moves to the position of the tooth plate, the positioning and rotating mechanism will drive the filter mechanism to rotate and flip; A liquid guiding connection mechanism is arranged in the upper end of the filter seat, the lower end of the liquid guiding connection mechanism is communicated with the first connecting cavity, and a spray mechanism is arranged at the upper end of the second connecting cavity.

2. A gradient pore size melt filter for nonwoven fabric production according to claim 1, characterized in that: The filtering mechanism includes a connecting ring, which is arranged in an installation groove, and both ends of the connecting ring are fixedly connected with connecting rods, and the connecting rods are movably connected in the installation groove. A mounting ring is movably installed in the connecting ring, and a filter screen is fixedly connected to the inner side of the mounting ring. A first magnetic block is fixedly connected to the lower end of the filter screen. A positioning ring is provided on the upper side of the mounting ring, and the positioning ring is movably installed on the upper end of the connecting ring. The arc-shaped inclined groove is opened at the lower end of the connecting ring.

3. A gradient pore size melt filter for nonwoven fabric production according to claim 2, characterized in that: The magnetic detection mechanism includes a connecting box, in which a first T-shaped rod is movably connected, the upper end of the first T-shaped rod extends out of the connecting box and is fixedly connected to a second magnetic block, the second magnetic block is attracted to the first magnetic block, the lower end of the first T-shaped rod is fixedly connected to a supporting spring, the lower end of the supporting spring is fixedly connected to the inner side of the connecting box, a push switch is provided on the inner side of the supporting spring, and the push switch is fixedly connected to the inner side of the connecting box.

4. The gradient pore size melt filter for nonwoven fabric production according to claim 3, characterized in that: Both ends of the connection box are fixedly connected with a second T-rod, and the end of the second T-rod away from the connection box is slidably connected in a T-slot, and the T-slot is opened in the first connecting cavity. A connecting spring is fixedly connected in the T-slot, and the upper end of the connecting spring is fixedly connected to the lower end of the second T-rod, and the upper and lower ends of the second T-rod are fixedly connected with a baffle, and the baffle is slidably connected in a receiving groove, and the receiving groove is opened in the filter seat.

5. The gradient pore size melt filter for nonwoven fabric production according to claim 2, characterized in that: The positioning and rotating mechanism includes a gear, one end of a connecting rod passes through a connecting plate and extends into a T-shaped ring groove and is fixedly connected to the gear, the gear is slidably connected to the T-shaped ring groove, and one end of the gear away from the connecting rod is fixedly connected to two positioning rods, the positioning rods are slidably connected to the positioning groove, and the positioning groove is opened in the T-shaped ring groove.

6. The gradient pore size melt filter for nonwoven fabric production according to claim 1, characterized in that: The liquid-conducting connection mechanism includes a connecting tube, which is fixedly connected to the upper end of the filter seat, and the lower end of the connecting tube is communicated with a connecting cavity, which is opened in the filter seat, and a connecting block is slidably connected in the connecting cavity, and two arc-shaped through grooves are opened in the upper end of the connecting block. A return spring is sleeved on the outer side of the connecting block, and the upper end of the return spring is fixedly connected to the connecting block, and the lower end is fixedly connected to the connecting cavity.

7. A gradient pore size melt filter for nonwoven fabric production according to claim 6, characterized in that: A heating block is fixedly connected inside the connection block. A plurality of heat-conducting pins are fixedly connected inside the connection block. One end of the heat-conducting pin extends into the arc-shaped through groove, and the other end is connected to the heating block.

8. The gradient pore size melt filter for nonwoven fabric production according to claim 1, characterized in that: The spray mechanism includes a spray head, which is fixedly connected to the upper end of the second connecting cavity. The upper end of the spray head is connected to a liquid guide tube, and the liquid guide tube extends into the external environment at one end away from the spray head. The second connecting cavity is connected to a drain pipe, and the drain pipe is fixedly connected to the filter seat. The drain pipe extends into the external environment at one end away from the second connecting cavity.

9. The gradient pore size melt filter for nonwoven fabric production according to claim 1, characterized in that: The upper end of the connection plate is fixedly connected to the output end of the transmission motor, the transmission motor is fixedly installed in the filter seat, a plurality of heating rings are fixedly connected in the filter seat, a plurality of through cavities are opened in the filter seat, and a movable cover is clamped in the through cavity.

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