Synthetic leather nascent fiber melt extrusion device and use method

Abstract

The invention discloses a synthetic leather nascent fiber melt extrusion device and a use method, and belongs to the technical field of spinning machines.The synthetic leather nascent fiber melt extrusion device comprises a shell, an injection pipe is installed at the position, close to the upper end, of the left side of the shell, a conveying pipeline is installed at the position, close to the lower end, of the right side of the shell, and a spinneret plate is installed at the right end of the conveying pipeline; and a filter cartridge is mounted in the shell. The motor can drive the filter cartridge to rotate and dynamically change the filtering area, so that the possibility of blockage of the filtering holes is effectively reduced, the uniformity of the filtering process is ensured, excessive blockage of the local filtering area is avoided, and when the filter cartridge rotates, the touch block is utilized to touch the touch switch, so that the filtering efficiency is improved. The electromagnet is instantly controlled to drive the cleaning needle to automatically clean impurities and small bubbles in the filter holes, then the small bubbles are discharged in time by using vibration force during cleaning, and the problem that the bubbles penetrate through the filter holes due to pressure deformation, and spinning is interrupted is solved.

Description

Technical Field

[0001] The invention relates to the technical field of spinning machines, and more specifically to a synthetic leather primary fiber melt extrusion device and a use method thereof. Background Art

[0002] The primary fibers of synthetic leather are usually made by a specific spinning process, in which a polymer stream is solidified and formed in a spinning field. Its constituent materials mainly include ultrafine fibers and polyurethane (commonly known as polyurethane). In the specific production process, the raw materials need to be heated to a molten state or in a suitable liquid state first, and then these raw materials in a molten or liquid state are input into a melt spinning machine. Inside the spinning machine, the melted raw materials will be ejected from the spinneret under pressure, and the raw material stream will cool down rapidly after being ejected, thereby forming primary fiber filaments. In order to ensure that the ejected primary fiber filaments can be cooled and shaped in time, special cooling devices are generally installed at the spinneret, such as cooling air rings or cooling water jackets, etc. These cooling devices can ensure that the primary fiber filaments are quickly cooled after being ejected, thereby forming a fiber form with a certain structure and performance.

[0003] In the actual production process, there are often some problems that affect the smooth spinning process. For example, when impurities or particles are mixed into the raw materials, these impurities and particles will reach the spinneret with the flow of the raw materials. Since the spinneret aperture on the spinneret is usually small, impurities and particles can easily block the spinneret, causing the corresponding holes to be unable to continue to produce yarn. Once the spinneret is blocked, the spinning process will be interrupted, and the more spinnerets are blocked, the greater the restriction on the spinneret length, which seriously affects production efficiency and product quality.

[0004] In addition to the problem of impurities and particulate matter blocking the spinneret, spinning interruption may also be caused by bubbles in the molten and liquid raw materials. When there are bubbles in the raw materials, these bubbles will destroy the continuity of the formation of the primary fiber filaments when passing through the spinneret holes on the spinneret, causing the primary fibers to break or defect, and then causing spinning interruption. In order to solve the above problems, a Chinese patent discloses a fiber melt spinning machine filter device with an application number of 202421158117.8. The technical solution proposed in the patent disclosure document is to install a filter screen with a smaller aperture in the spinning machine. The principle is to use the tension characteristics of bubbles. Since the aperture of the filter screen is small, when the bubbles contact the filter screen, their surface tension will prevent the bubbles from passing through the filter screen. This not only realizes the filtering function of impurities and particulate matter in the raw materials, but also achieves the effect of removing bubbles to a certain extent.

[0005] However, as the production time increases, bubbles and impurities will gradually stay on the surface of the filter. These substances accumulated on the surface of the filter will occupy the filter area of ​​the filter, resulting in a decrease in the effective filter area of ​​the filter, which in turn reduces the filter efficiency of the filter. As the filter efficiency decreases, impurities and bubbles in the raw materials may not be filtered out in a timely and effective manner, thereby increasing the risk of spinning interruption. On the other hand, if the filter is seriously blocked, the pressure at the filter will increase. Under the action of strong pressure, the bubbles will deform. Bubbles that were originally unable to pass through the filter may change their ability to pass through the filter due to deformation, eventually causing bubbles to pass through the filter. These bubbles that pass through the filter will flow to the spinneret along with the raw materials, again causing the problem of primary fiber interruption, affecting production stability and product quality. Summary of the invention

[0006] In view of the problems existing in the above-mentioned technology, the purpose of the present invention is to provide a synthetic leather primary fiber melt extrusion device and a method of use, which can realize the rotation of the filter drum driven by a motor and dynamically change the filter area, thereby effectively reducing the possibility of clogging of the filter holes, improving the filtration efficiency, and ensuring the uniformity of the filtration process, avoiding excessive clogging of the local filter area. When the filter drum rotates, the touch block is used to touch the touch switch, and the electromagnet is instantly controlled to drive the cleaning needle to automatically clean the impurities and small bubbles in the filter holes. The vibration force during cleaning is then used to promptly discharge the small bubbles to avoid the problem of bubbles passing through the filter holes due to pressure deformation and causing spinning interruption.

[0007] To solve the above problems, the present invention adopts the following technical solutions.

[0008] A synthetic leather primary fiber melt extrusion device comprises a shell, an injection pipe is installed at the left side of the shell near the upper end, a transmission pipeline is installed at the right side of the shell near the lower end, a spinneret is installed at the right end of the transmission pipeline, a filter cartridge is installed inside the shell, and evenly distributed filter holes are opened on the side wall of the filter cartridge; A bottom plate is fixedly mounted on the lower end of the filter cartridge, a motor is mounted on the lower end of the shell, an output shaft of the motor movably penetrates the shell and is fixedly connected to the bottom plate, a vertical plate is arranged on the left side of the filter cartridge, evenly distributed cleaning needles are fixedly connected to the right side surface of the vertical plate, a control assembly is mounted on the right side of the vertical plate, the control assembly is used to drive the cleaning needle to move right and insert it into the corresponding filter hole, evenly distributed touch blocks are fixedly mounted on the outer side wall of the filter cartridge near the lower end, a touch switch is mounted on the inner wall of the shell at the position corresponding to the touch block, and the touch switch is used to turn on the control assembly; A sealing cover is installed on the upper end of the shell, and an air collecting hood is installed on the upper end of the sealing cover. The interior of the air collecting hood is communicated with the interior of the shell. An exhaust component is also installed on the air collecting hood, and the exhaust component is used to discharge the air in the air collecting hood.

[0009] Furthermore, the control component includes a permanent magnetic column, which is fixedly installed on the left side of the vertical plate. An electromagnet is arranged on the left side of the permanent magnetic column. An outer shell cover is installed on the left side of the shell at the vertical plate. The permanent magnetic column and the electromagnet are both installed in the outer shell cover. A hole groove for the movement of the vertical plate is opened on the side wall of the shell at the vertical plate. A first spring is installed on the left side of the vertical plate, and the left end of the first spring is fixedly connected to the inner wall of the outer shell cover.

[0010] Furthermore, the exhaust assembly includes a floating block, which is arranged on a gas collecting hood. The overall density of the floating block is lower than the density of the raw material liquid. An exhaust pipe is also installed on the gas collecting hood.

[0011] Furthermore, the exhaust pipe is installed on the side wall of the air collecting hood, one end of which passes through the side wall of the air collecting hood and extends to the interior, the side wall of the floating block fits the inner wall of the air collecting hood, and a plurality of connecting grooves are provided on the side wall of the floating block. The upper end of the floating block is fixedly connected to a limiting column, and the upper end of the limiting column is against the upper inner wall of the air collecting hood, and a sealing column is fixedly installed on the side surface of the limiting column, and the end of the sealing column away from the limiting column is against the left end opening of the exhaust pipe for sealing the left end opening of the exhaust pipe, and a second spring is wrapped around the connection between the exhaust pipe and the sealing column, the left end of the second spring is fixedly connected to the sealing column, and the right end of the second spring is fixedly connected to the exhaust pipe.

[0012] Furthermore, the exhaust pipe is installed at the upper end of the air collecting hood, and a movable pipe is arranged inside the exhaust pipe. The lower end of the movable pipe movably passes through the upper end wall of the air collecting hood and is fixedly connected to the floating block. The side wall of the movable pipe is provided with evenly distributed exhaust holes near the upper end, and the upper end wall of the sealing cover is located below the floating block and is provided with a connecting hole, and the aperture of the connecting hole is smaller than the diameter of the floating block.

[0013] Furthermore, the bottom plate is made of permanent magnetic material, and the upper end of the bottom plate is fixedly connected with evenly distributed magnetic conductive columns.

[0014] Furthermore, a stirring rod is installed at the center of the upper end surface of the bottom plate.

[0015] Furthermore, the touch switch includes a switch cover, a conductive plate is installed inside the switch cover, a spring is arranged on the right side of the conductive plate, a gap is left between the conductive plate and the spring, a telescopic column is fixedly connected to the right side of the spring, the left end of the telescopic column movably passes through the switch cover and extends to the outside, the conductive plate and the spring are both made of conductive material, and the conductive plate and the spring are electrically connected to the control circuit of the electromagnet.

[0016] Furthermore, a limit plate is fixedly connected to the outer wall of the filter cartridge near the upper end, and an annular plate is fixedly connected to the inner wall of the shell below the limit plate.

[0017] The present invention also provides a method for using the synthetic leather primary fiber melt extrusion device, comprising the following steps: Step 1, driving the filter cartridge to rotate at a certain speed by a motor so that the effective filter area of ​​the filter cartridge is continuously changed to reduce the blockage of the effective filter area; Step 2: During the rotation of the filter cartridge, the touch block touches the touch switch, instantly turning on and off the electromagnet, causing the electromagnet to generate a strong magnet for a moment, pushing the permanent magnet column through magnetic repulsion, and finally driving the cleaning needle to be inserted into the corresponding filter hole; Step 3, use a cleaning needle to remove impurities and small bubbles attached to the filter holes, use the vibration force during cleaning to cause the small bubbles to rise, and finally enter the air collecting hood. When the air in the air collecting hood reaches a certain amount, the air in the air collecting hood is discharged through the exhaust assembly.

[0018] Compared with the prior art, the present invention has the following beneficial effects: (1) This solution uses a motor to drive the filter cartridge to rotate and dynamically change the filter area, thereby effectively reducing the possibility of filter hole blockage, improving the filtration efficiency, ensuring the uniformity of the filtration process, and avoiding excessive blockage of the local filter area. When the filter cartridge rotates, the touch block touches the touch switch, instantly controlling the electromagnet to drive the cleaning needle to automatically clean the impurities and small bubbles in the filter hole. The vibration force during cleaning is then used to promptly expel the small bubbles, preventing the bubbles from passing through the filter hole due to pressure deformation and causing spinning interruption.

[0019] (2) This solution uses the vibration force during stirring and cleaning to promptly remove small bubbles attached to the inner wall of the filter cartridge, preventing these small bubbles from clogging the filter holes and affecting the filtering operation. The rising small bubbles enter the gas collecting hood and are collected. When a certain amount is collected, the exhaust component is used to automatically discharge the gas without manual intervention. The exhaust component can automatically seal after discharging the air to prevent outside air from entering, thereby maintaining the stability of the spinning environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 This is an appearance view of the overall structure of the present invention; Figure 2 is a cross-sectional view of the interior of the housing of the present invention; Figure 3 It is a structural schematic diagram of the filter screen cartridge of the present invention; Figure 4 It is a cross-sectional view of the interior of the gas collecting hood in the first embodiment of the present invention; Figure 5 This is a disassembled view of the exhaust assembly in the first embodiment of the present invention; Figure 6 It is a cross-sectional view of the interior of the gas collecting hood in the second embodiment of the present invention; Figure 7 It is a schematic structural diagram of the touch switch of the present invention.

[0022] Description of the numbers in the figure: 1. Shell; 2. Injection pipe; 3. Conveying pipeline; 4. Annular plate; 5. Filter cartridge; 6. Limit plate; 7. Bottom plate; 8. Motor; 9. Stirring rod; 10. Touch block; 11. Touch switch; 111. Switch cover; 112. Telescopic column; 113. Shrapnel; 114. Conductive plate; 12. Shell cover; 13. Filter hole; 14. Vertical plate; 15. Cleaning needle; 16. First spring; 17. Permanent magnetic column; 18. Electromagnet; 19. Magnetic column; 20. Sealing cover; 21. Gas collecting cover; 22. Exhaust pipe; 23. Floating block; 24. Connecting groove; 25. Limit column; 26. Sealing column; 27. Second spring; 28. Moving tube; 29. ​​Exhaust hole; 30. Connecting hole. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0024] Example 1 See also Figures 1 to 3A synthetic leather primary fiber melt extrusion device comprises a housing 1, an injection pipe 2 is installed at the left side of the housing 1 near the upper end, a transmission pipe 3 is installed at the right side of the housing 1 near the lower end, a spinneret is installed at the right end of the transmission pipe 3, a filter cartridge 5 is installed inside the housing 1, and filter holes 13 evenly distributed are opened on the side wall of the filter cartridge 5; A bottom plate 7 is fixedly installed at the lower end of the filter cartridge 5, a motor 8 is installed at the lower end of the shell 1, the output shaft of the motor 8 movably penetrates the shell 1 and is fixedly connected to the bottom plate 7, a vertical plate 14 is arranged on the left side of the filter cartridge 5, and evenly distributed cleaning needles 15 are fixedly connected to the right side surface of the vertical plate 14, and a control component is installed on the right side of the vertical plate 14, and the control component is used to drive the cleaning needle 15 to move right and insert it into the corresponding filter hole 13, and evenly distributed touch blocks 10 are fixedly installed near the lower end of the outer wall of the filter cartridge 5, and the inner wall of the shell 1 corresponds to the position of the touch block 10 A touch switch 11 is installed at the vertical plate 14, and the touch switch 11 is used to open the control component. The control component includes a permanent magnet column 17, and the permanent magnet column 17 is fixedly installed on the left side of the vertical plate 14. An electromagnet 18 is arranged on the left side of the permanent magnet column 17. The housing cover 12 is installed on the left side of the vertical plate 14. The permanent magnet column 17 and the electromagnet 18 are both installed in the housing cover 12. The side wall of the housing 1 is located at the vertical plate 14 and is provided with a hole groove for the vertical plate 14 to move. A first spring 16 is installed on the left side of the vertical plate 14, and the left end of the first spring 16 is fixedly connected to the inner wall of the housing cover 12; A sealing cover 20 is installed at the upper end of the shell 1, and an air collecting hood 21 is installed at the upper end of the sealing cover 20. The interior of the air collecting hood 21 is interconnected with the interior of the shell 1. An exhaust component is also installed on the air collecting hood 21, and the exhaust component is used to discharge the air in the air collecting hood 21.

[0025] When in use, the polymer solution is injected into the shell 1 through the injection tube 2, the polymer solution will flow into the filter cartridge 5, then pass through the filter hole 13 and flow into the conveying pipe 3, and finally be ejected from the spinneret at the right end of the conveying pipe 3. The impurities and small bubbles in the polymer solution will be filtered through the filter hole 13 and remain in the filter cartridge 5. When working, the motor 8 is turned on, and the motor 8 controls the rotation of the bottom plate 7 to control the rotation of the filter cartridge 5. The motor 8 can control the filter cartridge 5 to rotate at a certain speed, for example, one circle per minute. The side of the filter cartridge 5 close to the conveying pipe 3 is an effective filtering area. During filtering, the impurities and small bubbles in the polymer solution will adhere to the effective filtering area of ​​the filter cartridge 5, that is, the filter hole 13 is blocked. By controlling the rotation of the filter cartridge 5, the effective filtering area of ​​the filter cartridge 5 can be continuously changed, thereby reducing the blockage of the effective filtering area to a certain extent. When the filter cartridge 5 rotates, it will drive the touch block 10 to rotate together. When the touch block 10 rotates, it contacts the touch switch 11. At this time, the electromagnet 18 will be energized for a moment. When the electromagnet 18 is energized for a moment, it will generate a magnetic repulsion force on the permanent magnet column 17. The permanent magnet column 17 moves to the right, and at the same time drives the vertical plate 14 to move together. When the vertical plate 14 moves, it will drive the cleaning needle 15 to move to the right and insert it into the corresponding filter hole 13, pushing away the impurities and small bubbles attached to the filter hole 13, thus realizing the cleaning of the filter hole 13. The cleaned impurities are precipitated on the surface of the bottom plate 7 with their own gravity, thus avoiding the clogging of the filter hole 13. When the cleaning needle 15 is inserted into the filter hole 13, it will give the filter cartridge 5 a vibration force, which can help the small bubbles attached to the filter cartridge 5 to move upward by vibrating the filter cartridge 5. When the vertical plate 14 moves to the right, it pulls the first spring 16. After the electromagnet 18 is powered off, the previously stretched first spring 16 will reset and pull the vertical plate 14 to the left, so that the cleaning needle 15 is separated from the filter hole 13. Through the rotation of the filter cartridge 5 and the continuous left and right movement of the cleaning needle 15, the filter hole 13 can be cleaned. At the same time, the vibration during cleaning causes the bubbles attached to the inner wall of the filter cartridge 5 to move upward, which can effectively ensure the filtering area of ​​the filter cartridge 5 and avoid the problem of spinning mid-end caused by blockage.

[0026] When the small bubbles move upward, they will move to the sealing cover 20 and finally enter the air collecting cover 21. A large number of small bubbles will gather in the air collecting cover 21, thus realizing the collection of bubbles. By timely draining the bubbles attached to the inner wall of the filter cartridge 5, the filter cartridge 5 is prevented from being blocked, resulting in the problem of increased pressure squeezing the bubbles through the filter hole 13.

[0027] like Figure 2 , Figure 4 and Figure 5As shown, the exhaust assembly includes a floating block 23, which is arranged on a gas collecting hood 21. The overall density of the floating block 23 is lower than the density of the raw material liquid. An exhaust pipe 22 is also installed on the gas collecting hood 21. The exhaust pipe 22 is installed on the side wall of the air collecting hood 21, one end of which passes through the side wall of the air collecting hood 21 and extends to the inside, the side wall of the floating block 23 fits the inner wall of the air collecting hood 21, and a plurality of connecting grooves 24 are provided on the side wall of the floating block 23. The upper end of the floating block 23 is fixedly connected to the limiting column 25, and the upper end of the limiting column 25 is against the upper inner wall of the air collecting hood 21. A sealing column 26 is fixedly installed on the side surface of the limiting column 25, and the end of the sealing column 26 away from the limiting column 25 is against the left end opening of the exhaust pipe 22, which is used to seal the left end opening of the exhaust pipe 22. A second spring 27 is wound around the connection between the exhaust pipe 22 and the sealing column 26, the left end of the second spring 27 is fixedly connected to the sealing column 26, and the right end of the second spring 27 is fixedly connected to the exhaust pipe 22.

[0028] By adopting the above technical solution, the air in the gas collecting hood 21 will flow to the upper end of the floating block 23 through the connecting groove 24, and gather more and more, and finally the air pressure increases, and the air pressure will squeeze the liquid level of the polymer solution to drop. At this time, the floating block 23 moves down with the liquid level of the polymer solution, and the downward movement of the floating block 23 will drive the limiting column 25 to move down together. When the limiting column 25 moves downward, it will drive the sealing column 26 to move synchronously. The sealing column 26 is misaligned with the left end opening of the exhaust pipe 22. At this time, the left end opening of the exhaust pipe 22 is opened, the air in the gas collecting hood 21 is discharged, the air pressure in the gas collecting hood 21 is reduced, the polymer solution level moves up, the floating block 2 moves upward, and finally the upper end of the limiting column 25 is against the upper inner wall of the gas collecting hood 21, and the sealing column 26 blocks the left end opening of the exhaust pipe 22 to prevent the air from being discharged, and the gas collection operation continues. The side wall of the floating block 23 is in contact with the inner wall of the gas collecting hood 21 , so that the floating block 23 can only move up and down in the gas collecting hood 21 , thereby preventing the floating block 23 from swinging left and right and causing the left end opening of the exhaust pipe 22 to be opened.

[0029] Example 2 like Figure 6 As shown, the exhaust pipe 22 is installed at the upper end of the air collecting hood 21, and a movable pipe 28 is arranged inside the exhaust pipe 22. The lower end of the movable pipe 28 movably passes through the upper end wall of the air collecting hood 21 and is fixedly connected to the floating block 23. The side wall of the movable pipe 28 is provided with evenly distributed exhaust holes 29 near the upper end. The upper end wall of the sealing cover 20 is located below the floating block 23 and is provided with a connecting hole 30. The aperture of the connecting hole 30 is smaller than the diameter of the floating block 23.

[0030] By adopting the above technical solution, after the liquid level of the polymer solution enters the gas collecting hood 21 through the connecting hole 30, the floating block 23 moves upward to drive the moving tube 28 upward, and the exhaust hole 29 enters the exhaust pipe 22 to achieve blocking of the exhaust hole 29. When the air around the floating block 23 gathers more and more, the air pressure increases, and the air pressure squeezes the liquid level of the polymer solution to drop. The floating block 23 moves down with the liquid level of the polymer solution, and the moving tube 28 also moves down. Finally, the exhaust hole 29 leaks from the lower end of the exhaust pipe 22, and the air in the gas collecting hood 21 enters the moving tube 28 through the exhaust hole 29 and is discharged along the pipeline. After the air pressure is reduced, the liquid level of the polymer solution moves up and drives the floating block 23 upward, so that the exhaust hole 29 enters the exhaust pipe 22, and the exhaust hole 29 is blocked, and the operation of collecting gas continues.

[0031] like Figure 2 As shown, the bottom plate 7 is made of permanent magnetic material, such as iron-cobalt-nickel material, which can absorb magnetic impurities in the polymer solution and facilitate the rapid precipitation of impurities. The upper end of the bottom plate 7 is fixedly connected with evenly distributed magnetic columns 19. The magnetic columns 19 increase the area of ​​magnetic attraction, which helps to clean up the magnetic impurities in the polymer solution.

[0032] like Figure 2 As shown, a stirring rod 9 is installed at the center of the upper end surface of the bottom plate 7. When the filter cartridge 5 rotates, it drives the stirring rod 9 to rotate. The stirring rod 9 stirs the polymer solution to facilitate the bubbles in the liquid to move upward and enter the gas collecting hood 21, which is convenient for collecting gas.

[0033] like Figure 7 As shown, the touch switch 11 includes a switch cover 111, a conductive plate 114 is installed inside the switch cover 111, a spring 113 is arranged on the right side of the conductive plate 114, a gap is left between the conductive plate 114 and the spring 113, a telescopic column 112 is fixedly connected to the right side of the spring 113, the left end of the telescopic column 112 movably passes through the switch cover 111 and extends to the outside, the conductive plate 114 and the spring 113 are both made of conductive material, and the conductive plate 114 and the spring 113 are electrically connected to the control circuit of the electromagnet 18.

[0034] By adopting the above technical solution, when the touch block 10 rotates, the touch block 10 will squeeze the telescopic column 112, and the telescopic column 112 will move into the switch cover 111. Finally, the telescopic column 112 squeezes the spring sheet 113, and the spring sheet 113 bends, and finally the spring sheet 113 contacts the conductive plate 114. The control circuit receives a signal that the spring sheet 113 and the conductive plate 114 are closed, and at this time, a signal of instantaneous power supply is given to the electromagnet 18, so that the cleaning needle 15 is driven to move right and finally reset. When the touch block 10 no longer squeezes the telescopic column 112, the bent spring sheet 113 resets, so that the spring sheet 113 is disconnected from the conductive plate 114.

[0035] like Figure 2 As shown, the outer wall of the filter cartridge 5 is fixedly connected to a limit plate 6 near the upper end, and the inner wall of the shell 1 is fixedly connected to a ring plate 4 below the limit plate 6, which is used to support the limit plate 6. At the same time, the upper end of the filter cartridge 5 is limited by the ring plate 4 to avoid the upper end of the filter cartridge 5 swinging when rotating, which makes it difficult for the cleaning needle 15 to be inserted into the filter hole 13.

[0036] The present invention also provides a method for using the synthetic leather primary fiber melt extrusion device, comprising the following steps: Step 1, driving the filter cartridge 5 to rotate at a certain speed by the motor 8, so that the effective filter area of ​​the filter cartridge 5 is continuously changed to reduce the blockage of the effective filter area; Step 2, during the rotation of the filter cartridge 5, the touch block 10 touches the touch switch 11, instantly turning on and off the electromagnet 18, so that the electromagnet 18 generates a strong magnet for a moment, pushes the permanent magnet column 17 through the magnetic repulsion force, and finally drives the cleaning needle 15 to be inserted into the corresponding filter hole 13; Step 3, remove impurities and small bubbles attached to the filter hole 13 through the cleaning needle 15, and use the vibration force during cleaning to cause the small bubbles to rise and finally enter the air collecting hood 21. When the air in the air collecting hood 21 reaches a certain amount, the air in the air collecting hood 21 is discharged through the exhaust assembly.

[0037] The above are only preferred specific implementations of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and improved concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A synthetic leather primary fiber melt extrusion device, comprising a housing (1), an injection pipe (2) being installed on the left side of the housing (1) near the upper end, a conveying pipe (3) being installed on the right side of the housing (1) near the lower end, a spinneret being installed on the right end of the conveying pipe (3), a filter cartridge (5) being installed inside the housing (1), and filter holes (13) being evenly distributed through the side wall of the filter cartridge (5); Features: A bottom plate (7) is fixedly mounted on the lower end of the filter cartridge (5); a motor (8) is mounted on the lower end of the housing (1); an output shaft of the motor (8) movably penetrates the housing (1) and is fixedly connected to the bottom plate (7); a vertical plate (14) is arranged on the left side of the filter cartridge (5); evenly distributed cleaning needles (15) are fixedly connected to the right side surface of the vertical plate (14); a control component is mounted on the right side of the vertical plate (14); the control component is used to drive the cleaning needles (15) to move rightward and insert them into the corresponding filter holes (13); evenly distributed touch blocks (10) are fixedly mounted on the outer wall of the filter cartridge (5) near the lower end; a touch switch (11) is mounted on the inner wall of the housing (1) at a position corresponding to the touch block (10); the touch switch (11) is used to turn on the control component; A sealing cover (20) is mounted on the upper end of the shell (1), an air collecting hood (21) is mounted on the upper end of the sealing cover (20), the interior of the air collecting hood (21) is in communication with the interior of the shell (1), and an exhaust assembly is also mounted on the air collecting hood (21), the exhaust assembly being used to exhaust the air in the air collecting hood (21).

2. The synthetic leather primary fiber melt extrusion device according to claim 1, characterized in that: The control component comprises a permanent magnetic column (17), the permanent magnetic column (17) being fixedly mounted on the left side of the vertical plate (14), an electromagnet (18) being arranged on the left side of the permanent magnetic column (17), an outer shell cover (12) being mounted on the left side of the housing (1) located on the vertical plate (14), the permanent magnetic column (17) and the electromagnet (18) being both mounted in the outer shell cover (12), a hole groove for the movement of the vertical plate (14) being opened on the side wall of the housing (1) located on the vertical plate (14), a first spring (16) being mounted on the left side of the vertical plate (14), the left end of the first spring (16) being fixedly connected to the inner wall of the outer shell cover (12).

3. The synthetic leather primary fiber melt extrusion device according to claim 2, characterized in that: The exhaust assembly comprises a floating block (23), the floating block (23) being arranged on an air collecting hood (21), the overall density of the floating block (23) being lower than the density of the raw material liquid, and an exhaust pipe (22) being further installed on the air collecting hood (21).

4. The synthetic leather primary fiber melt extrusion device according to claim 3, characterized in that: The exhaust pipe (22) is mounted on the side wall of the gas collecting hood (21), one end of which penetrates the side wall of the gas collecting hood (21) and extends to the inside; the side wall of the floating block (23) is in contact with the inner wall of the gas collecting hood (21); a plurality of groups of connecting grooves (24) are provided on the side wall of the floating block (23); the upper end of the floating block (23) is fixedly connected to a limiting column (25); the upper end of the limiting column (25) is pressed against the upper inner wall of the gas collecting hood (21); the side surface of the limiting column (25) is A sealing column (26) is fixedly mounted on the surface, and one end of the sealing column (26) away from the limiting column (25) abuts against the left end opening of the exhaust pipe (22) for sealing the left end opening of the exhaust pipe (22). A second spring (27) is wound around the connection portion between the exhaust pipe (22) and the sealing column (26), the left end of the second spring (27) is fixedly connected to the sealing column (26), and the right end of the second spring (27) is fixedly connected to the exhaust pipe (22).

5. The synthetic leather primary fiber melt extrusion device according to claim 3, characterized in that: The exhaust pipe (22) is installed at the upper end of the gas collecting hood (21), and a movable pipe (28) is arranged inside the exhaust pipe (22). The lower end of the movable pipe (28) movably penetrates the upper end wall of the gas collecting hood (21) and is fixedly connected to the floating block (23). The side wall of the movable pipe (28) is provided with evenly distributed exhaust holes (29) near the upper end. The upper end wall of the sealing cover (20) is provided with a connecting hole (30) below the floating block (23), and the aperture of the connecting hole (30) is smaller than the diameter of the floating block (23).

6. The synthetic leather primary fiber melt extrusion device according to claim 1, characterized in that: The bottom plate (7) is made of permanent magnetic material, and evenly distributed magnetic conductive columns (19) are fixedly connected to the upper end of the bottom plate (7).

7. The synthetic leather primary fiber melt extrusion device according to claim 6, characterized in that: A stirring rod (9) is installed at the center of the upper end surface of the bottom plate (7).

8. The synthetic leather primary fiber melt extrusion device according to claim 2, characterized in that: The touch switch (11) comprises a switch cover (111), a conductive plate (114) is installed inside the switch cover (111), a spring sheet (113) is arranged on the right side of the conductive plate (114), a gap is left between the conductive plate (114) and the spring sheet (113), a telescopic column (112) is fixedly connected to the right side of the spring sheet (113), the left end of the telescopic column (112) movably passes through the switch cover (111) and extends to the outside, the conductive plate (114) and the spring sheet (113) are both made of conductive material, and the conductive plate (114) and the spring sheet (113) are electrically connected to a control circuit of an electromagnet (18).

9. The synthetic leather primary fiber melt extrusion device according to claim 1, characterized in that: The outer wall of the filter cartridge (5) is fixedly connected to a limit plate (6) near the upper end, and the inner wall of the housing (1) is fixedly connected to an annular plate (4) below the limit plate (6).

10. A method for using the synthetic leather primary fiber melt extrusion device according to claim 5, characterized in that: The steps include: Step 1, driving the filter cartridge (5) to rotate at a certain speed by means of a motor (8), so that the effective filter area of ​​the filter cartridge (5) is continuously changed, thereby reducing the blockage of the effective filter area; Step 2, during the rotation of the filter cartridge (5), the touch block (10) touches the touch switch (11), instantly turning on and off the electromagnet (18), causing the electromagnet (18) to generate a strong magnet for an instant, pushing the permanent magnet column (17) through the magnetic repulsion force, and finally driving the cleaning needle (15) to be inserted into the corresponding filter hole (13); Step 3, using a cleaning needle (15) to remove impurities and small bubbles attached to the filter hole (13), using the vibration force during cleaning to cause the small bubbles to rise and finally enter the air collecting hood (21), and when the air in the air collecting hood (21) reaches a certain amount, the air in the air collecting hood (21) is discharged through the exhaust assembly.

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