Dust removal system before nylon chip spinning melt

Abstract

The application belongs to the technical field of dust removal and discloses a nylon chip spinning melt pre-dust removal system, which comprises a dust removal box, an inclined plate, a driving assembly and a feeding hopper. A lower opening is formed below the lower part of the lowermost inclined plate at the bottom of the dust removal box, and a lower feeding hopper is arranged in the lower opening. A plurality of air suction openings are further formed in the inner walls of the opposite sides of the dust removal box, and the plurality of air suction openings are communicated through connecting pipes. An air suction assembly for sucking air from the connecting pipes is further arranged on the connecting pipes. The driving assembly drives the inclined plate to reciprocating swing, and the nylon chips on the inclined plate are shaken to make the dust attached thereto float. The air suction assembly sucks air from the connecting pipes to make the plurality of air suction openings generate suction force. After the external air enters the dust removal box through the feeding hopper and the lower feeding hopper, the air suction openings suck the air away, forming air circulation and taking away the dust shaken by the inclined plate and the dust floating in the process of the step-by-step falling of the inclined plate. The dust attached to the nylon chips is removed, and the quality of the nylon chip spinning product is ensured.

Description

Technical Field

[0001] This utility model relates to the field of dust removal technology, and in particular to a dust removal system for nylon chips before spinning and melting. Background Technology

[0002] Nylon chips are sheet-like granules produced during nylon production due to their low melt strength, obtained through a pelletizing process. Nylon is the trade name for polyamide fiber, also known as nylon. As a spinning raw material, nylon chips must first be melted at high temperatures to form a viscous polymer melt, and then stretched into fibers using a spinning device.

[0003] However, during the production, transportation, and storage of the chips, their surfaces easily adsorb dust and other impurities from the environment. These adhering contaminants can mix into the polymer system during the melting process, leading to a decrease in melt uniformity. This can not only clog the filters of the spinning equipment but also cause fiber surface defects, uneven diameters, and other problems, ultimately severely affecting the mechanical properties and appearance quality of the spun products. Utility Model Content

[0004] To address the aforementioned problems, this invention provides a dust removal system for nylon chip spinning before melting.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a dust removal system before melting of nylon chip spinning, comprising a dust removal box, wherein several staggered inclined plates are hinged to the inner walls on opposite sides of the dust removal box, a driving assembly is provided on the dust removal box to drive the several inclined plates to reciprocate synchronously, an upper opening is provided above the uppermost inclined plate at the top of the dust removal box, and a feeding hopper is provided in the upper opening, a lower opening is provided below the lower part of the lowermost inclined plate at the bottom of the dust removal box, and a feeding hopper is provided in the lower opening, and several air intakes are also provided on the inner walls on opposite sides of the dust removal box, the several air intakes are connected by a connecting pipe, and an air extraction assembly for extracting air from the connecting pipe is also provided on the connecting pipe.

[0006] By adopting the above technical solution, a dust collection box, inclined plate, drive assembly, connecting pipe, and air extraction assembly are set up. Nylon chips are poured into the feeding hopper and fall step by step on the inclined plate. At the same time, the drive assembly drives the inclined plate to swing back and forth, agitating the nylon chips on the inclined plate and causing the dust attached to them to float up. The air extraction assembly draws air from the connecting pipe, creating suction at several air intakes. Outside air enters the dust collection box through the feeding and unloading hoppers and is then drawn away by the air intakes, creating air circulation and carrying away the dust agitated by the inclined plate and the dust that floats up during the step-by-step fall of the inclined plate. Finally, the nylon chips fall into the unloading hopper for discharge. This process removes the dust attached to the nylon chips, ensuring the quality of the nylon chip spun products.

[0007] Furthermore, the inclined plate is hinged to the dust collector on one side, which is higher than the other side.

[0008] By adopting the above technical solution, the side of the inclined plate that is hinged to the dust collector is set higher than the other side, ensuring that the nylon chips on the inclined plate can slide down.

[0009] Furthermore, the drive assembly includes two vertically sliding lifting rods inside the dust collection box. Two connecting blocks are spaced apart on the bottom surface of the inclined plate. Each connecting block has a strip-shaped hole, the length of which is consistent with the length of the inclined plate. A connecting rod is slidably disposed in both strip-shaped holes. The two ends of the connecting rod are respectively connected to the two lifting rods. The upper ends of the two lifting rods pass through the top of the dust collection box and are connected through the top plate.

[0010] By adopting the above technical solution, a lifting rod, a connecting block, a strip hole, a connecting rod, and a top plate are set up. The lifting of the top plate and the lifting rod drives the connecting rod to rise and fall. When the connecting rod rises and falls, it drives the connecting block to rise and fall, thereby causing the inclined plate to swing. When the connecting block drives the connecting block to rise and fall, it slides in the strip hole.

[0011] Furthermore, the top of the dust collector is vertically provided with two spaced uprights, and the top plate has two sliding holes that are slidably connected to the corresponding uprights. The top of the dust collector is provided with two spaced upright plates, and a rotating shaft is horizontally rotatably provided between the two upright plates. A cam is fixedly sleeved on the rotating shaft, and the wheel surface of the cam contacts the bottom surface of the top plate. A drive motor is horizontally provided on the top surface of the dust collector, and the output shaft of the drive motor is connected to the rotating shaft.

[0012] By adopting the above technical solution, a pole, a plate, a rotating shaft, a cam, and a drive motor are set up. The drive motor drives the rotating shaft to rotate, thereby driving the cam to rotate. When the cam protrusion contacts the bottom surface of the top plate, it pushes the top plate upward, thereby driving the lifting rod to rise. When the cam protrusion separates from the bottom surface of the top plate, the top plate and the lifting rod descend.

[0013] Furthermore, a limiting plate is provided at the top of the upright, and a compression spring is sleeved on the upright body located between the limiting plate and the top plate.

[0014] By adopting the above technical solution, a limiting plate and a compression spring are set. When the cam protrusion contacts the bottom surface of the top plate, the top plate is pushed upward and the compression spring is compressed. When the cam protrusion separates from the bottom surface of the top plate, the compression spring loses its restraint and pushes the top plate and lifting rod downward.

[0015] Furthermore, a filter screen is provided inside the air intake.

[0016] By adopting the above technical solution, a filter screen is installed inside the air intake to prevent nylon chips from entering the air intake.

[0017] Furthermore, the air extraction assembly includes an air extraction box disposed on the side wall of the dust collection box, the top of the air extraction box is provided with a connection hole, one end of the connecting pipe is connected to the connection hole, and an air extraction pump is also disposed on the air extraction box, the air extraction pipe of the air extraction pump is connected to the air extraction box.

[0018] Furthermore, a sealed door is hinged to one side of the extraction box, and raised strips are provided on the inner walls of the extraction box on opposite sides. An installation frame is also provided inside the extraction box. The bottom surface of the installation frame slides in contact with the top surface of the raised strips, and the top surface slides in contact with the top surface inside the extraction box. A collection net bag is provided at the bottom of the installation frame.

[0019] By adopting the above technical solution, a sealed box door, raised strips, mounting frame, and collection mesh bag are installed. Air enters the extraction box through the connecting pipe and is then drawn away by the air pump, while dust in the air is collected by the collection mesh bag. Opening the sealed box door and sliding the mounting frame removes it from the extraction box, allowing the dust in the collection mesh bag to be emptied.

[0020] Furthermore, two first baffles are spaced apart on the top surface of the inclined plate. The two first baffles are connected by a second baffle on the side near the hinge between the inclined plate and the dust collector box. A third baffle is provided on the side of each of the two first baffles away from the second baffle. The distance between the two third baffles on the side away from the first baffle is smaller than the distance between the sides near the first baffle.

[0021] In summary, this utility model has the following beneficial effects: This application includes a dust collection box, an inclined plate, a drive assembly, a connecting pipe, and an air extraction assembly. Nylon chips are poured into the feeding hopper and fall step-by-step on the inclined plate. Simultaneously, the drive assembly drives the inclined plate to swing back and forth, vibrating the nylon chips and causing the dust adhering to them to rise. The air extraction assembly draws air from the connecting pipe, creating suction at several air inlets. Outside air enters the dust collection box through the feeding and unloading hoppers and is then drawn away by the air inlets, creating airflow that carries away the dust agitated by the inclined plate and the dust that rises during the step-by-step descent. Finally, the nylon chips fall into the unloading hopper for discharge. This process removes the dust adhering to the nylon chips, ensuring the quality of the nylon chip spun products. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0023] Figure 2 This is a schematic diagram of the internal structure of the dust collector box according to an embodiment of the present invention;

[0024] Figure 3 yes Figure 2 Enlarged view of part A;

[0025] Figure 4This is a schematic diagram of the inclined plate and lifting rod in an embodiment of this utility model;

[0026] Figure 5 This is a schematic diagram of the inclined plate in an embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the structure of the air extraction box and air extraction pump according to an embodiment of this utility model;

[0028] Figure 7 yes Figure 2 Enlarged view of part B.

[0029] In the diagram: 10. Dust collection box; 11. Inclined plate; 111. First baffle; 112. Second baffle; 113. Third baffle; 12. Feed hopper; 13. Discharge hopper; 14. Air intake port; 15. Connecting pipe; 16. Filter screen; 20. Drive assembly; 21. Lifting rod; 22. Connecting block; 23. Strip hole; 24. Connecting rod; 25. Top plate; 26. Upright pole; 261. Limiting plate; 262. Compression spring; 27. Upright plate; 271. Rotating shaft; 272. Cam; 28. Drive motor; 30. Air extraction assembly; 31. Air extraction box; 32. Air extraction pump; 33. Sealed door; 34. Raised strip; 35. Mounting frame; 36. Collection mesh bag. Detailed Implementation

[0030] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0031] like Figure 1-7As shown in the figure, this application discloses a dust removal system before melting of nylon chip spinning, including a dust collection box 10, a drive assembly 20, and an air extraction assembly 30. Several staggered inclined plates 11 are hinged to the inner walls of opposite sides of the dust collection box 10. The drive assembly 20 is mounted on the dust collection box 10 and is used to drive the inclined plates 11 to reciprocate synchronously. An upper opening is provided above the uppermost inclined plate 11 at the top of the dust collection box 10, and a feeding hopper 12 is provided inside the upper opening. A lower opening is provided below the lower part of the lowermost inclined plate 11 at the bottom of the dust collection box 10, and a feeding hopper 13 is provided inside the lower opening. Several air suction ports 14 are also provided on the inner walls of opposite sides of the dust collection box 10, and the air suction ports 14 are connected by a connecting pipe 15. The air extraction assembly 30 is mounted on the connecting pipe 15 and is used to extract air from the connecting pipe 15. Nylon chips are poured into the feeding hopper 12 and fall step by step on the inclined plate 11. Simultaneously, the drive assembly 20 drives the inclined plate 11 to swing back and forth, vibrating the nylon chips and causing the dust adhering to them to rise. Air is then drawn from the connecting pipe 15 by the suction assembly 30, creating suction at several air intakes 14. Outside air enters the dust collection box 10 through the feeding hopper 12 and the unloading hopper 13 and is then drawn away by the air intakes 14, creating airflow that carries away the dust agitated by the inclined plate 11 and the dust that rises during the step-by-step fall. Finally, the nylon chips fall into the unloading hopper 13 for discharge. This process removes the dust adhering to the nylon chips, ensuring the quality of the nylon spun products.

[0032] Specifically, the side of the inclined plate 11 that is hinged to the dust collector 10 is higher than the other side, ensuring that the nylon chips on the inclined plate 11 can slide off. A filter screen 16 is provided inside the air intake 14 to prevent the nylon chips from entering the air intake 14. Two first baffles 111 are provided at intervals on the top surface of the inclined plate 11. The two first baffles 111 are connected by a second baffle 112 on the side of the inclined plate 11 that is close to the hinge point of the dust collector 10. A third baffle 113 is provided on the side of the two first baffles 111 that is away from the second baffle 112. The distance between the two third baffles 113 on the side away from the first baffle 111 is smaller than the distance between the sides of the two third baffles 113 that are close to the first baffle 111. The first baffles 111, the second baffles 112, and the third baffles 113 together restrict the area of ​​the nylon chips on the inclined plate 11 and ensure that the nylon chips can fall onto the plate surface of the lower inclined plate 11.

[0033] The drive assembly 20 includes two vertically sliding lifting rods 21 within the dust collection box 10. Specifically, vertical grooves are formed on the inner walls of opposite sides of the dust collection box 10, and the lifting rods slide within the corresponding grooves. Two connecting blocks 22 are spaced apart on the bottom surface of the inclined plate 11. Each connecting block 22 has a slotted hole 23, the length of which is aligned with the length of the inclined plate 11. A connecting rod 24 slides within both slots 23, with its two ends connected to the two lifting rods 21, allowing the connecting rods 24 and the lifting rods 21 to move synchronously. The upper ends of the two lifting rods 21 pass through the top of the dust collection box 10 and are connected by a top plate 25. The lifting of the top plate 25 and the lifting rods 21 causes the connecting rods 24 to rise and fall. When the connecting rods 24 rise and fall, they cause the connecting blocks 22 to rise and fall, thereby causing the inclined plate 11 to swing. The connecting blocks 22 slide within the slots 23 as they rise and fall. The dust collector 10 has two vertically spaced uprights 26 at its top. Two sliding holes are formed on the top plate 25, which are slidably connected to the corresponding uprights 26 to ensure the stability of the top plate 25's sliding motion. Two vertical plates 27 are also spaced at the top of the dust collector 10. A rotating shaft 271 is horizontally rotatable between the two plates 27. A cam 272 is fixedly fitted onto the rotating shaft 271, with its wheel surface contacting the bottom surface of the top plate 25. A drive motor 28 is horizontally mounted on the top surface of the dust collector 10, and its output shaft is connected to the rotating shaft 271. The drive motor 28 drives the rotating shaft 271 to rotate, thereby rotating the cam 272. When the protruding part of the cam 272 contacts the bottom surface of the top plate 25, it pushes the top plate 25 upward, thus raising the lifting rod 21. When the protruding part of the cam 272 separates from the bottom surface of the top plate 25, the top plate 25 and the lifting rod 21 descend. A limiting plate 261 is provided at the top of the upright 26. A compression spring 262 is sleeved on the upright 26 between the limiting plate 261 and the top plate 25. The upper end of the compression spring 262 is connected to the limiting plate 261 and the lower end is connected to the top plate 25. When the protruding part of the cam 272 contacts the bottom surface of the top plate 25, it pushes the top plate 25 upward and compresses the compression spring 262. When the protruding part of the cam 272 separates from the bottom surface of the top plate 25, the compression spring 262 loses its restraint and pushes the top plate 25 and the lifting rod 21 downward, ensuring the stability of the descent of the top plate 25 and the lifting rod 21.

[0034] The extraction assembly 30 includes an extraction box 31 mounted on the side wall of the dust collection box 10. A connection hole is provided at the top of the extraction box 31, and one end of a connecting pipe 15 is connected to the connection hole. An extraction pump 32 is also mounted on the extraction box 31, and the extraction pipe of the extraction pump 32 is connected to the extraction box 31. A sealed door 33 is hinged to one side of the extraction box 31. Raised strips 34 are provided on the inner walls of opposite sides of the extraction box 31. An installation frame 35 is also provided inside the extraction box 31. The bottom surface of the installation frame 35 slides in contact with the top surface of the raised strips 34, and the top surface slides in contact with the inner top surface of the extraction box 31. A collection mesh bag 36 is provided at the bottom of the installation frame 35. Air enters the extraction box 31 through the connecting pipe 15 and is drawn away by the extraction pump 32. Dust in the air is collected by the collection mesh bag 36. Every so often, the sealed door 33 is opened, the installation frame 35 is slid out, and the dust in the collection mesh bag 36 can be emptied.

[0035] The operating principle of the dust removal system before nylon chip spinning and melting in this embodiment is as follows: Nylon chips are poured into the feeding hopper 12 and fall step by step on the inclined plate 11. At the same time, the drive motor 28 drives the rotating shaft 271 and cam 272 to rotate. The rotation of cam 272 pushes the top plate 25, lifting rod 21, and connecting rod 24 to move up and down, driving the connecting block 22 to rise and fall, thereby causing the inclined plate 11 to swing back and forth, vibrating the nylon chips on the inclined plate 11, causing the dust attached to them to float up. The suction pump 32 is started to draw air from the suction box 31 and connecting pipe 15, so that several suction ports 14 generate suction. Outside air enters the dust removal box 10 through the feeding hopper 12 and the unloading hopper 13 and is drawn away by the suction ports 14, forming air circulation, carrying away the dust shaken up by the inclined plate 11 and the dust floating up during the step-by-step fall of the inclined plate 11. When the air passes through the suction box 31, the dust in it is collected by the collection net bag 36.

[0036] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A dust removal system before melting of nylon chip spinning, characterized in that: The dust collector includes a dust collection box (10), on which several staggered inclined plates (11) are hinged to the inner walls on opposite sides. A drive assembly (20) is provided on the dust collection box (10) to drive the several inclined plates (11) to swing back and forth synchronously. An upper opening is provided above the uppermost inclined plate (11) at the top of the dust collection box (10), and a feeding hopper (12) is provided in the upper opening. A lower opening is provided below the lower part of the lowermost inclined plate (11) at the bottom of the dust collection box (10), and a feeding hopper (13) is provided in the lower opening. Several air intakes (14) are also provided on the inner walls on opposite sides of the dust collection box (10). The several air intakes (14) are connected by a connecting pipe (15). An air extraction assembly (30) for extracting air from the connecting pipe (15) is also provided on the connecting pipe (15).

2. The dust removal system before melting of nylon chip spinning according to claim 1, characterized in that: The inclined plate (11) is hinged to the dust collection box (10) on one side, which is higher than the other side.

3. The dust removal system before melting of nylon chip spinning according to claim 1, characterized in that: The drive assembly (20) includes two vertically sliding lifting rods (21) in the dust collection box (10). Two connecting blocks (22) are spaced apart on the bottom surface of the inclined plate (11). The connecting blocks (22) have strip holes (23) with the length direction of the strip holes (23) being consistent with the length direction of the inclined plate (11). A connecting rod (24) is slidably arranged in both strip holes (23). The two ends of the connecting rod (24) are respectively connected to the two lifting rods (21). The upper ends of the two lifting rods (21) pass through the top of the dust collection box (10) and are connected through the top plate (25).

4. The dust removal system before melting of nylon chip spinning according to claim 3, characterized in that: The dust collector (10) has two vertically spaced uprights (26) on its top. The top plate (25) has two sliding holes that are slidably connected to the corresponding uprights (26). The dust collector (10) has two vertical plates (27) spaced apart on its top. A rotating shaft (271) is horizontally rotatably mounted between the two vertical plates (27). A cam (272) is fixedly mounted on the rotating shaft (271). The wheel surface of the cam (272) is in contact with the bottom surface of the top plate (25). A drive motor (28) is horizontally mounted on the top surface of the dust collector (10). The output shaft of the drive motor (28) is connected to the rotating shaft (271).

5. The dust removal system before melting of nylon chip spinning according to claim 4, characterized in that: A limiting plate (261) is provided at the top of the upright (26), and a compression spring (262) is sleeved on the upright (26) between the limiting plate (261) and the top plate (25).

6. The dust removal system before melting of nylon chip spinning according to claim 1, characterized in that: A filter screen (16) is provided inside the air intake (14).

7. The dust removal system before melting of nylon chip spinning according to claim 1, characterized in that: The air extraction assembly (30) includes an air extraction box (31) disposed on the side wall of the dust removal box (10). The top of the air extraction box (31) is provided with a connection hole. One end of the connecting pipe (15) is connected to the connection hole. The air extraction box (31) is also provided with an air extraction pump (32). The air extraction pipe of the air extraction pump (32) is connected to the air extraction box (31).

8. The dust removal system before melting of nylon chip spinning according to claim 7, characterized in that: The vacuum box (31) is hinged to a sealed door (33) on one side. The vacuum box (31) has protrusions (34) on the inner walls on opposite sides. The vacuum box (31) also has an installation frame (35) inside. The bottom surface of the installation frame (35) slides in contact with the top surface of the protrusions (34), and the top surface slides in contact with the top surface inside the vacuum box (31). The bottom of the installation frame (35) has a collection net bag (36).

9. The dust removal system before melting of nylon chip spinning according to claim 1, characterized in that: The top surface of the inclined plate (11) is provided with two first baffles (111) spaced apart. The two first baffles (111) are connected to the side of the inclined plate (11) near the hinge point between the dust collector (10) by a second baffle (112). A third baffle (113) is provided on the side of the two first baffles (111) away from the second baffle (112). The distance between the two third baffles (113) on the side away from the first baffle (111) is smaller than the distance between the sides of the two third baffles (113) near the first baffle (111).

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