An automated production device for polyamide filaments

Abstract

The present invention relates to an automatic production device for polyamide filament, including a melting extruder, a spinning device, a traction and winding device, and a frame. A fence assembly is arranged around the spinning device. The fence assembly includes a fence shell, fence rollers, and scrapers. The die head is located in the upper part of the fence shell. The fence rollers are rotatably arranged in the fence shell. Two fence rollers are respectively horizontally arranged on both sides below the die head. Two scrapers are respectively arranged between the two fence rollers and the side wall of the fence shell. Springs drive the scrapers to abut against the circumferential outer wall of the fence rollers. A downwardly convex diversion groove is arranged at the lower part of the fence shell. Both ends of the two diversion grooves are communicated with an exhaust fan. The purpose of the present invention is to solve or at least alleviate the problem that when producing filament polyamide, PA6 will adhere to the spinneret plate surface, the bottom of the box body, the spinning window, etc. in a crystalline agglomerated state, affecting the cooling and forming of PA6 fibers and causing a large increase in the number of broken ends, and to provide an automatic production device for polyamide filament.

Description

Technical Field

[0001] The present invention belongs to the technical field of spinning equipment, and particularly relates to an automatic production equipment for polyamide filament. Background Art

[0002] Polyamide 6 mainly produces drawn filaments of various specifications and uses by melt spinning, drawing, and winding of PA6 dry chips. Its basic production process is: dry chips - feeding hopper - intermediate silo - screw extruder - spinning box - melt metering pump - spinning pack, spinneret - draw rolls of winding machine - winding head for winding and forming.

[0003] The melt processing of PA6 is carried out under shear and non-isothermal conditions. During the solidification of the fiber, induced crystallization occurs under high winding speed, high in-line tension, and non-isothermal stress. The height of the PET spinning window of the TCS equipment is slightly higher than that of the POY high-speed spinning, and it is only 1.35 m. In order to achieve a better cooling effect, most of them use side blowing at 22°C.

[0004] However, when PA6 is in the state of high-temperature melt spinning, about 0.5% of its monomers and oligomers escape from the holes on the spinneret plate in a gaseous state. Due to the action of the side blowing wind, they adhere to the spinneret plate, the bottom of the box, the spinning window, etc. in a crystalline agglomerated state, deteriorating the environment and seriously affecting the cooling and forming of PA6 fibers, resulting in a large increase in the number of broken ends, which is not conducive to the production of filaments. Summary of the Invention

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art, solve or at least alleviate the problem that when producing filament polyamide, PA6 will adhere to the spinneret plate, the bottom of the box, the spinning window, etc. in a crystalline agglomerated state, affecting the cooling and forming of PA6 fibers and resulting in a large increase in the number of broken ends, and provide an automatic production equipment for polyamide filament.

[0006] The present invention is achieved by the following technical solutions:

[0007] An automated production device for nylon filaments, comprising a melting and extrusion machine, a spinning device, a traction and winding device, and a frame. The spinning device includes a die head and a spinneret plate. The die head is in the shape of a cuboid, and its upper side is connected to the extrusion side of the melting and extrusion machine. The spinneret plate is located on the lower side of the die head away from the melting and extrusion machine. The traction and winding device is arranged under the spinning device and is used to traction the nylon filaments ejected by the spinning device and wind them. A fence assembly is arranged around the spinning device. The fence assembly includes a fence shell, fence rollers, and a scraper. The die head is located in the upper part inside the fence shell, and the upper side of the die head passes through the fence shell and is connected to the melting and extrusion machine. An opening corresponding to the spinning device is arranged in the middle of the lower side of the fence shell. The fence rollers are rotatably arranged inside the fence shell. Two fence rollers are respectively horizontally arranged on both sides of the lower part of the die head. The circumferential outer wall of the fence rollers is spaced from the top surface, side surface, bottom surface of the fence shell, and the side surface of the spinning device.

[0008] Two of the scrapers are respectively arranged between the two fence rollers and the side wall of the fence shell. The scrapers are horizontally slidably arranged on the fence shell. A spring is arranged between the scrapers and the fence shell. The spring drives the scrapers to abut against the circumferential outer wall of the fence rollers. The rotation directions of the two fence rollers are both from the lower part of the spinning device upwards to the scrapers.

[0009] A downwardly convex diversion groove is arranged at the lower part of the fence shell. The two diversion grooves are respectively located under the two fence rollers. The ends of the two diversion grooves are both communicated with an exhaust fan.

[0010] To further implement the present invention, the following technical solutions can be preferably selected:

[0011] Preferably, the fence assembly further includes a cleaning assembly. Two groups of the cleaning assemblies are respectively arranged between the two fence rollers and the side wall of the fence shell. The cleaning assembly includes two cleaning rollers. The cleaning rollers are arranged parallel to the fence rollers and are rotatably arranged in the fence shell. Cleaning brushes are circumferentially arrayed in the middle of the cleaning rollers. The ends of the cleaning brushes abut against the circumferential outer wall of the fence rollers. The two cleaning rollers are respectively located on the upper and lower sides of the scraper.

[0012] Preferably, flanges are arranged on both sides of the opening at the lower side of the fence shell and are inclined inwards and upwards. The ends of the flanges face the lower end of the side of the spinning device, and the upper ends of the flanges are located under the bottom surface of the spinneret plate.

[0013] Preferably, the fence assembly further includes a transmission mechanism. The transmission mechanism includes a roller gear, a cleaning gear, and a transmission gear. The roller gear and the cleaning gear are respectively coaxially and fixedly arranged on the fence roller and the cleaning roller. The roller gear and the cleaning gear are meshed with each other. The number of the transmission gears is two. The two transmission gears are meshed with each other and are respectively meshed with the roller gears of the two fence rollers.

[0014] Preferably, a shaping component is provided on the lower side of the fence component. The shaping component includes a shaping frame, which is an equilateral frustum with a larger upper part and a smaller lower part. A U-shaped heat preservation cavity is arranged around the shaping frame, and a constant-temperature gas is filled in the heat preservation cavity.

[0015] Preferably, the traction and winding device includes a traction roller, a winding roller and an adjusting roller which are arranged in parallel. The traction roller and the winding roller are both horizontally rotatably arranged on the frame. The traction roller is located in front of the adjusting roller, and the axes of the traction roller and the winding roller are at the same height position. A pressure roller is rotatably arranged above the traction roller. The pressure roller slides longitudinally, and a spring is arranged between the pressure roller and the traction roller. The spring drives the pressure roller to fit with the traction roller. The adjusting roller is located between the traction roller and the winding roller and reciprocates longitudinally.

[0016] Preferably, the traction and winding device further includes an adjusting plate and an adjusting shaft. The adjusting plate is located above the adjusting shaft, and a spring is arranged between the adjusting plate and the adjusting shaft. The adjusting roller is rotatably sleeved on the adjusting shaft, and the adjusting plate slides longitudinally on the frame.

[0017] Preferably, the traction and winding device includes a winding shaft and a telescopic rod. The winding shaft is rotatably arranged on the frame. The fixed section of the telescopic rod is coaxially and fixedly sleeved in the winding shaft, and the telescopic section of the telescopic rod extends out of the winding shaft and is detachably and fixedly axially sleeved on the winding roller.

[0018] Preferably, an oiling device is arranged between the spinning device and the traction and winding device. The oiling device includes a Y-direction oiling component;

[0019] The Y-direction oiling component is located below the spinning device. The Y-direction oiling component includes a Y-direction oil guiding shaft, a Y-direction rotating sleeve and a Y-direction oil wheel. The Y-direction oil guiding shaft is horizontally arranged along the length direction of the spinning device. One end of the Y-direction oil guiding shaft is closed and the other end is connected to an oil source. The Y-direction rotating sleeve is sealingly rotatably sleeved outside the Y-direction oil guiding shaft. The Y-direction oil wheel is fixedly and sealingly sleeved outside the Y-direction rotating sleeve. An annular first oil groove is arranged inside the Y-direction oil wheel. A plurality of micropores are radially arranged in an array on the Y-direction oil wheel. One end of each micropore is connected to the first oil groove and the other end is connected to the circumferential outer wall of the Y-direction oil wheel. A first through hole is arranged in the Y-direction oil guiding shaft along its radial direction. A second through hole corresponding to the first through hole is arranged in the Y-direction rotating sleeve along its radial direction. When the first through hole and the second through hole coincide, the inside of the Y-direction oil guiding shaft is connected to the first oil groove;

[0020] The Y-direction oil wheels are arranged in an array along the length direction of the Y-direction rotating sleeve.

[0021] Preferably, the oiling device further includes an X-direction oiling component, which is located below the Y-direction oiling component. The X-direction oiling component includes an X-direction oil guide pipe, an X-direction oil guide shaft, an X-direction rotating sleeve, and an X-direction oil wheel. The X-direction oil guide pipe is connected to an oil source. The X-direction oil guide shaft is horizontally arranged and perpendicular to the Y-direction oil guide shaft. One end of the X-direction oil guide shaft is closed and the other end is connected to the X-direction oil guide pipe. The X-direction rotating sleeve is sealingly rotatably sleeved outside the X-direction oil guide shaft. The X-direction oil wheel is fixedly and sealingly sleeved outside the X-direction rotating sleeve. An annular second oil groove is arranged inside the X-direction oil wheel. A plurality of micropores are radially arrayed on the X-direction oil wheel. One end of each micropore is connected to the second oil groove and the other end is connected to the circumferential outer wall of the X-direction oil wheel. The X-direction oil guide shaft is provided with a third through hole along its radial direction. The X-direction rotating sleeve is provided with a fourth through hole corresponding to the third through hole along its radial direction. When the third through hole coincides with the fourth through hole, the inside of the X-direction oil guide shaft is connected to the second oil groove;

[0022] The number of the X-direction oil guide shafts is equal to that of the Y-direction oil wheels and they are arranged in one-to-one correspondence. All the X-direction rotating sleeves rotate synchronously in the same direction.

[0023] Through the above technical solutions, the beneficial effects of the present invention are as follows:

[0024] The fence assembly of the present invention is provided with a fence shell, a fence roller, and a scraper, and a diversion groove is arranged on the lower side of the fence shell. During wire spraying, the diversion groove sucks air inward through a suction fan, and the PA6 escaping in a gaseous state is drawn outwards. Most of the gaseous PA6 is adsorbed on the fence roller and condensed into a solid. The fence roller rotates continuously and scrapes off the attached condensed solid PA6 through the scraper, and the scraped PA6 impurities are drawn out by the diversion groove. This not only avoids the adsorption of gaseous PA6 on other components, prevents it from dripping and adhering to the wire, improves the quality of the wire, but also enables the solid PA6 adhered to the fence roller to be cleaned in time and is convenient for collection. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic structural diagram of the present invention;

[0026] Figure 2 is a front view of the present invention;

[0027] Figure 3 is one of the schematic structural diagrams of the fence assembly and the shaping assembly of the present invention;

[0028] Figure 4 is the other schematic structural diagram of the fence assembly and the shaping assembly of the present invention;

[0029] Figure 5 is a structural sectional view of the fence assembly and the shaping assembly of the present invention;

[0030] Figure 6 is a schematic structural diagram of the traction and winding device of the present invention;

[0031] Figure 7 is a structural sectional view of the winding roller and winding shaft of the present invention;

[0032] Figure 8 is a structural schematic diagram of the oiling device of the present invention;

[0033] Figure 9 is a structural sectional view of the Y-direction oiling assembly of the present invention;

[0034] Figure 10 is a structural sectional view of the X-direction oiling assembly of the present invention;

[0035] Wherein: 1 - frame; 2 - die head; 3 - spinneret plate; 4 - fence shell; 5 - fence roller; 6 - scraper; 7 - diversion groove; 8 - cleaning roller; 9 - flange; 10 - roller gear; 11 - cleaning gear; 12 - transmission gear; 13 - shaping frame; 14 - heat preservation cavity; 15 - traction roller; 16 - winding roller; 17 - adjusting roller; 18 - pressure roller; 19 - adjusting plate; 20 - adjusting shaft; 21 - winding shaft; 22 - telescopic rod; 23 - Y-direction oil guiding shaft; 24 - Y-direction rotating sleeve; 25 - Y-direction oil wheel; 26 - X-direction oil guiding pipe; 27 - X-direction oil guiding shaft; 28 - X-direction rotating sleeve; 29 - X-direction oil wheel. Detailed Embodiments

[0036] In the description of the present invention, it should also be noted that unless otherwise clearly defined and limited, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0037] 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 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 belong to the scope of protection of the present invention.

[0038] Embodiment 1:

[0039] As Figures 1 - 10As shown in the figure, an automated production device for nylon filaments includes a melting and extrusion machine, a spinning device, a traction and winding device, and a frame 1. The spinning device includes a die head 2 and a spinneret plate 3. The die head 2 is in the shape of a cuboid and its upper side is connected to the extrusion side of the melting and extrusion machine. The spinneret plate 3 is located on the lower side of the die head 2 away from the melting and extrusion machine. The traction and winding device is arranged under the spinning device and is used to traction the nylon filaments ejected by the spinning device and wind them up. It is characterized in that a fence assembly is arranged around the spinning device. The fence assembly includes a fence shell 4, fence rollers 5, and a scraper 6. The die head 2 is located in the upper part inside the fence shell 4. The upper side of the die head 2 passes through the fence shell 4 and is connected to the melting and extrusion machine. An opening corresponding to the spinning device is arranged in the middle of the lower side of the fence shell 4. The fence rollers 5 are rotatably arranged inside the fence shell 4. Two fence rollers 5 are respectively arranged horizontally on both sides of the lower part of the die head 2. The circumferential outer wall of the fence roller 5 is spaced from the top surface, side surface, bottom surface of the fence shell 4, and the side surface of the spinning device.

[0040] Two of the scrapers 6 are respectively arranged between the two fence rollers 5 and the side wall of the fence shell 4. The scraper 6 is horizontally slidably arranged in the fence shell 4. A spring is arranged between the scraper 6 and the fence shell 4. The spring drives the scraper 6 to abut against the circumferential outer wall of the fence roller 5. The rotation directions of the two fence rollers 5 are both from the lower part of the spinning device upwards to the scraper 6.

[0041] A downwardly convex diversion groove 7 is arranged at the lower part of the fence shell 4. The two diversion grooves 7 are respectively located under the two fence rollers 5. The ends of the two diversion grooves 7 are both communicated with a suction fan.

[0042] The fence assembly of the present invention is provided with a fence shell 4, fence rollers 5, and a scraper 6, and a diversion groove 7 is arranged at the lower side of the fence shell 4. During spinning, the diversion groove 7 sucks air inwards through a suction fan, and the PA6 escaping in a gaseous state is extracted outwards. Most of the gaseous PA6 is adsorbed on the fence roller 5 and condenses into a solid. The fence roller 5 rotates continuously and the attached condensed solid PA6 is scraped off by the scraper 6. The scraped PA6 impurities are extracted by the diversion groove 7. This not only avoids the adsorption of gaseous PA6 on other components, prevents it from dripping and adhering to the silk thread, improves the quality of the silk thread, but also enables the solid PA6 adhered to the fence roller 5 to be cleaned in time and is convenient for collection.

[0043] In order to improve the cleaning effect, the fence assembly further includes a cleaning assembly. Two sets of the cleaning assemblies are respectively arranged between the two fence rollers 5 and the side wall of the fence shell 4. The cleaning assembly includes two cleaning rollers 8. The cleaning rollers 8 are arranged parallel to the fence rollers 5 and are rotatably arranged in the fence shell 4. Cleaning brushes are circumferentially arranged in the middle of the cleaning rollers 8. The ends of the cleaning brushes abut against the circumferential outer wall of the fence roller 5. The two cleaning rollers 8 are respectively located on the upper and lower sides of the scraper 6.

[0044] To ensure the suction effect on the escaped gaseous PA6, flanges 9 are provided on both sides of the lower opening of the fence shell 4, which are inclined inward and upward. The end of the flange 9 faces the lower end of the spinneret device side, and the upper end of the flange 9 is located below the bottom surface of the spinneret plate 3.

[0045] To optimize the product structure, enable the two fence rollers 5 to rotate synchronously in opposite directions, and make the fence rollers 5 rotate in the opposite direction to the cleaning roller 8, the fence assembly further includes a transmission mechanism. The transmission mechanism includes a roller gear 10, a cleaning gear 11, and a transmission gear 12. The roller gear 10 and the cleaning gear 11 are respectively coaxially and fixedly arranged on the fence roller 5 and the cleaning roller 8. The roller gear 10 meshes with the cleaning gear 11. The number of the transmission gears 12 is two, and the two transmission gears 12 mesh with each other and respectively mesh with the roller gears 10 of the two fence rollers 5. One of the transmission gears 12 is drivingly connected to the motor.

[0046] To cool and shape the ejected filaments and prevent the side blowing air from disturbing the escaped gaseous PA6, a shaping assembly is provided below the fence assembly. The shaping assembly includes a shaping frame 13. The shaping frame 13 is an equilateral trapezoid with a larger upper part and a smaller lower part. An n-shaped heat preservation cavity 14 is provided around the shaping frame 13. A constant temperature gas is filled in the heat preservation cavity 14, and the constant temperature gas enters from one end of the heat preservation cavity 14 and exits from the other end of the heat preservation cavity 14.

[0047] Currently, most traction and winding operations use a single roller. The rotation of the roller generates a traction force on the filaments. However, as the number of filaments wound on the roller increases, it is equivalent to an increase in the diameter of the roller and an increase in the force arm, resulting in a continuous increase in the traction force, which is not conducive to the production of long filaments.

[0048] To avoid non-constant traction force, in this embodiment, the traction and winding device includes a traction roller 15, a winding roller 16, and an adjusting roller 17 that are arranged in parallel. The traction roller 15 and the winding roller 16 are both horizontally rotatably arranged on the frame 1. The traction roller 15 is located in front of the adjusting roller 17. The axis of the traction roller 15 and the axis of the winding roller 16 are at the same height position. A pressure roller 18 is rotatably arranged above the traction roller 15. The pressure roller 18 slides longitudinally. A spring is provided between the pressure roller 18 and the traction roller 15, and the spring drives the pressure roller 18 to fit against the traction roller 15. The adjusting roller 17 is located between the traction roller 15 and the winding roller 16 and moves longitudinally back and forth. After the filaments are wound around the traction roller 15 for a certain number of turns, they are wound on the winding roller 16. The diameter of the traction roller 15 is a fixed value and only functions as traction. Therefore, the traction force on the filaments is a fixed value.

[0049] To ensure that the silk thread can be tightly wound around the winding roller 16, the diameter value of the winding roller 16 is smaller than that of the traction roller 15. When the rotational speeds of the traction roller 15 and the winding roller 16 are the same, the silk thread drawn from the traction roller 15 will be more than the silk thread wound by the winding roller 16. At this time, the adjusting roller 17 moves downward to keep the silk thread in a tensioned state; when there is a large amount of silk thread wound around the winding roller 16 and the diameter value of the silk thread wound on the outer side of the winding roller 16 is greater than that of the traction roller 15, the silk thread drawn from the traction roller 15 will be less than the silk thread wound by the winding roller 16. At this time, the adjusting roller 17 moves upward to avoid breaking the silk thread.

[0050] To optimize the product structure and improve the adjustment stability of the adjusting roller 17, the traction and winding device further includes an adjusting plate 19 and an adjusting shaft 20. The adjusting plate 19 is located above the adjusting shaft 20, and a spring is provided between the adjusting plate 19 and the adjusting shaft 20. The adjusting roller 17 is rotationally sleeved on the adjusting shaft 20, and the adjusting plate 19 is longitudinally slidably arranged on the frame 1.

[0051] To prevent the silk thread from being wound around the same position of the winding roller 16, the traction and winding device includes a winding shaft 21 and a telescopic rod 22. The winding shaft 21 is rotatably arranged on the frame 1. The fixed section of the telescopic rod 22 is coaxially and fixedly sleeved inside the winding shaft 21, and the telescopic section of the telescopic rod 22 extends outward from the winding shaft 21 and is detachably and axially sleeved on the winding roller 16.

[0052] Conventional oiling devices usually use oil spraying or a one-way oil wheel. Although oil spraying provides uniform oiling, there will be excess oil spilling, which is not only wasteful but also requires regular cleaning; using a conventional one-way oil wheel not only results in non-uniform oiling but also makes it difficult to refuel the oil wheel, and the oil is likely to spill during the refueling process.

[0053] An oiling device is provided between the spinning device and the traction and winding device. The oiling device includes a Y-direction oiling assembly;

[0054] The Y-direction oiling assembly is located below the spinning device. The Y-direction oiling assembly includes a Y-direction oil guiding shaft 23, a Y-direction rotating sleeve 24, and a Y-direction oil wheel 25. The Y-direction oil guiding shaft 23 is horizontally arranged along the length direction of the spinning device. One end of the Y-direction oil guiding shaft 23 is closed, and the other end is connected to an oil source. The Y-direction rotating sleeve 24 is sealingly and rotationally sleeved outside the Y-direction oil guiding shaft 23. The Y-direction oil wheel 25 is fixedly and sealingly sleeved outside the Y-direction rotating sleeve 24. An annular first oil groove is provided inside the Y-direction oil wheel 25. A plurality of micropores are radially arrayed on the Y-direction oil wheel 25. One end of each micropore is connected to the first oil groove, and the other end is connected to the circumferential outer wall of the Y-direction oil wheel 25. The Y-direction oil guiding shaft 23 is provided with a first through hole along its radial direction. The Y-direction rotating sleeve 24 is provided with a second through hole corresponding to the first through hole along its radial direction. When the first through hole and the second through hole coincide, the inside of the Y-direction oil guiding shaft 23 is connected to the first oil groove;

[0055] A plurality of the Y-direction oil tankers 25 are arranged in an array along the length direction of the Y-direction rotating sleeve 24.

[0056] The oiling device further includes an X-direction oiling assembly, which is located below the Y-direction oiling assembly. The X-direction oiling assembly includes an X-direction oil guiding pipe 26, an X-direction oil guiding shaft 27, an X-direction rotating sleeve 28 and an X-direction oil tanker 29. The X-direction oil guiding pipe 26 is communicated with an oil source. The X-direction oil guiding shaft 27 is arranged horizontally and is perpendicular to the Y-direction oil guiding shaft 23. One end of the X-direction oil guiding shaft 27 is closed and the other end is communicated with the X-direction oil guiding pipe 26. The X-direction rotating sleeve 28 is hermetically sleeved and rotated outside the X-direction oil guiding shaft 27. The X-direction oil tanker 29 is fixedly and hermetically sleeved outside the X-direction rotating sleeve 28. An annular second oil groove is arranged inside the X-direction oil tanker 29. A plurality of micropores are arranged in a radial array on the X-direction oil tanker 29. One end of each micropore is communicated with the second oil groove and the other end is communicated with the circumferential outer wall of the X-direction oil tanker 29. A third through hole is arranged in the X-direction oil guiding shaft 27 along its radial direction. A fourth through hole corresponding to the third through hole is arranged in the X-direction rotating sleeve 28 along its radial direction. When the third through hole coincides with the fourth through hole, the inside of the X-direction oil guiding shaft 27 is communicated with the second oil groove;

[0057] The number of the X-direction oil guiding shafts 27 is equal to that of the Y-direction oil tankers 25 and they are arranged in one-to-one correspondence. All the X-direction rotating sleeves 28 rotate synchronously and in the same direction.

[0058] The present invention is provided with a Y-direction oiling assembly and an X-direction oiling assembly, which perform oiling in different directions to ensure the uniformity of oiling. At the same time, oil is injected into the first oil groove and the second oil groove of the Y-direction oil tanker 25 through the Y-direction oil guiding shaft 23 and the X-direction oil guiding shaft 27, and the oil will not spill during the oil filling process. At the same time, the oil filling efficiency is controlled by the rotation speeds of the Y-direction oil guiding shaft 23 and the X-direction oil guiding shaft 27 to avoid insufficient oil or excessive oil.

[0059] In this embodiment, the oil selected is Takemoto F-582 nylon POY oil agent, and the fiber bundling property and antistatic effect are acceptable.

[0060] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automated production device for polyamide filament, comprising a melt extruder, a spinneret device, a traction winding device and a frame (1). The spinneret device includes a die head (2) and a spinneret plate (3). The die head (2) is in a cuboid shape and its upper side is connected to the extrusion side of the melt extruder. The spinneret plate (3) is located on the lower side of the die head (2) away from the melt extruder. The traction winding device is arranged on the lower side of the spinneret device and is used to traction the polyamide filaments ejected by the spinneret device and wind them up. It is characterized in that, A fence assembly is arranged around the spinneret device. The fence assembly includes a fence housing (4), fence rollers (5) and a scraper (6). The die head (2) is located in the upper part inside the fence housing (4). The upper side of the die head (2) passes through the fence housing (4) and is connected to a melt extruder. An opening corresponding to the spinneret device is arranged in the middle of the lower side of the fence housing (4). The fence rollers (5) are rotatably arranged inside the fence housing (4). The two fence rollers (5) are respectively arranged horizontally on both sides below the die head (2). The circumferential outer wall of the fence roller (5) is spaced from the top surface, side surface, bottom surface of the fence housing (4) and the side surface of the spinneret device. The two scrapers (6) are respectively arranged between the two fence rollers (5) and the side wall of the fence housing (4). The scraper (6) is horizontally slidably arranged on the fence housing (4). A spring is arranged between the scraper (6) and the fence housing (4). The spring drives the scraper (6) to abut against the circumferential outer wall of the fence roller (5). The rotation directions of the two fence rollers (5) are both from the lower part of the spinneret device upwards to the scraper (6). A downwardly convex diversion groove (7) is arranged at the lower part of the fence housing (4). The two diversion grooves (7) are respectively located below the two fence rollers (5). The ends of the two diversion grooves (7) are both communicated with an exhaust fan. Flanges (9) which are inclined inwards and upwards are arranged on both sides at the opening of the lower side of the fence housing (4). The ends of the flanges (9) face the lower end side of the spinneret device. The upper ends of the flanges (9) are located below the bottom surface of the spinneret plate (3). A shaping assembly is arranged below the fence assembly. The shaping assembly includes a shaping frame (13). The shaping frame (13) is an equilateral frustum with a larger upper part and a smaller lower part. An n-shaped heat preservation cavity (14) is arranged around the shaping frame (13). A constant temperature gas is filled in the heat preservation cavity (14).

2. An automated production equipment for polyamide filament according to claim 1, characterized in that, The fence assembly further includes a cleaning assembly. The two groups of cleaning assemblies are respectively arranged between the two fence rollers (5) and the side wall of the fence housing (4). The cleaning assembly includes two cleaning rollers (8). The cleaning rollers (8) are arranged parallel to the fence rollers (5) and are rotatably arranged in the fence housing (4). Cleaning brushes are circumferentially arranged in an array at the middle of the cleaning rollers (8). The ends of the cleaning brushes abut against the circumferential outer wall of the fence roller (5). The two cleaning rollers (8) are respectively located above and below the scraper (6).

3. An automated production device for polyamide filament according to claim 2, characterized in that, The fence assembly further includes a transmission mechanism. The transmission mechanism includes a roller gear (10), a cleaning gear (11) and a transmission gear (12). The roller gear (10) and the cleaning gear (11) are respectively coaxially and fixedly arranged on the fence roller (5) and the cleaning roller (8). The roller gear (10) meshes with the cleaning gear (11). The number of the transmission gears (12) is two. The two transmission gears (12) mesh with each other and respectively mesh with the roller gears (10) of the two fence rollers (5).

4. An automated production equipment for polyamide filament according to claim 1, characterized in that, The traction and winding device includes a traction roller (15), a winding roller (16) and an adjusting roller (17) which are arranged in parallel. The traction roller (15) and the winding roller (16) are both horizontally rotatably arranged on the frame (1). The traction roller (15) is located on the front side of the adjusting roller (17). The axes of the traction roller (15) and the winding roller (16) are at the same height position. A pressure roller (18) is rotatably arranged above the traction roller (15). The pressure roller (18) slides longitudinally. A spring is arranged between the pressure roller (18) and the traction roller (15). The spring drives the pressure roller (18) to fit with the traction roller (15). The adjusting roller (17) is located between the traction roller (15) and the winding roller (16) and reciprocates longitudinally.

5. An automated production device for polyamide filaments according to claim 4, characterized in that, The traction and winding device further includes an adjusting plate (19) and an adjusting shaft (20). The adjusting plate (19) is located above the adjusting shaft (20). A spring is arranged between the adjusting plate (19) and the adjusting shaft (20). The adjusting roller (17) is rotatably sleeved on the adjusting shaft (20). The adjusting plate (19) is longitudinally slidably arranged on the frame (1).

6. An automated production device for polyamide filaments according to claim 4, characterized in that, The traction and winding device includes a winding shaft (21) and a telescopic rod (22). The winding shaft (21) is rotatably arranged on the frame (1). The fixed section of the telescopic rod (22) is coaxially and fixedly sleeved inside the winding shaft (21). The telescopic section of the telescopic rod (22) extends out of the winding shaft (21) and is detachably and fixedly axially sleeved on the winding roller (16).

7. An automated production equipment for polyamide filament according to claim 1, characterized in that, An oiling device is arranged between the spinning device and the traction and winding device. The oiling device includes a Y-direction oiling component. The Y-direction oiling component is located below the spinning device. The Y-direction oiling component includes a Y-direction oil guiding shaft (23), a Y-direction rotating sleeve (24) and a Y-direction oil wheel (25). The Y-direction oil guiding shaft (23) is horizontally arranged along the length direction of the spinning device. One end of the Y-direction oil guiding shaft (23) is closed and the other end is connected to an oil source. The Y-direction rotating sleeve (24) is sealingly rotatably sleeved outside the Y-direction oil guiding shaft (23). The Y-direction oil wheel (25) is fixedly and sealingly sleeved outside the Y-direction rotating sleeve (24). An annular first oil groove is arranged inside the Y-direction oil wheel (25). A plurality of micropores are radially arranged in the Y-direction oil wheel (25). One end of each micropore communicates with the first oil groove and the other end communicates with the circumferential outer wall of the Y-direction oil wheel (25). A first through hole is arranged in the Y-direction oil guiding shaft (23) along its radial direction. A second through hole corresponding to the first through hole is arranged in the Y-direction rotating sleeve (24) along its radial direction. When the first through hole and the second through hole coincide, the inside of the Y-direction oil guiding shaft (23) communicates with the first oil groove. The Y-direction oil wheels (25) are multiple and arranged in an array along the length direction of the Y-direction rotating sleeve (24).

8. An automated production equipment for polyamide filament, according to claim 7, characterized in that, The oiling device further includes an X-direction oiling assembly, which is located below the Y-direction oiling assembly. The X-direction oiling assembly includes an X-direction oil guiding pipe (26), an X-direction oil guiding shaft (27), an X-direction rotating sleeve (28), and an X-direction oil wheel (29). The X-direction oil guiding pipe (26) is communicated with an oil source. The X-direction oil guiding shaft (27) is horizontally arranged and perpendicular to the Y-direction oil guiding shaft (23). One end of the X-direction oil guiding shaft (27) is closed and the other end is communicated with the X-direction oil guiding pipe (26). The X-direction rotating sleeve (28) is hermetically rotatably sleeved outside the X-direction oil guiding shaft (27). The X-direction oil wheel (29) is fixedly and hermetically sleeved outside the X-direction rotating sleeve (28). An annular second oil groove is arranged inside the X-direction oil wheel (29). A plurality of micropores are radially and arrayedly arranged on the X-direction oil wheel (29). One end of each micropore is communicated with the second oil groove and the other end is communicated with the circumferential outer wall of the X-direction oil wheel (29). A third through hole is arranged on the X-direction oil guiding shaft (27) along its radial direction. The X-direction rotating sleeve (28) is provided with a fourth through hole corresponding to the third through hole along its radial direction. When the third through hole coincides with the fourth through hole, the interior of the X-direction oil guiding shaft (27) is communicated with the second oil groove; The number of the X-direction oil guiding shafts (27) is equal to that of the Y-direction oil wheels (25) and they are arranged in one-to-one correspondence. All the X-direction rotating sleeves (28) rotate synchronously in the same direction.

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