Polyester fiber monofilament production equipment

Abstract

The invention relates to the technical field of polyester fiber production, and discloses polyester fiber monofilament production equipment which comprises a spinning box, a screw extruder is installed at the upper end of the spinning box through two sets of supports, the right end of the screw extruder is connected with a feeding hopper through a feeding pipe, a metering pipe is vertically installed at the left end of the screw extruder, and the metering pipe is connected with a discharging hopper through a discharging pipe. The lower end of the metering pipe extends into the spinning box and is provided with a heating base, and an upper positioning connector, a metal corrugated pipe and a lower positioning connector are arranged in the heating base. By means of the advantage of water washing, a hydraulic rod upwards stretches out to drive a cleaning mold to stretch into a cleaning drying chamber, each set of expansion rubber rollers are correspondingly inserted into spinneret orifices of a spinneret, water continuously enters the spinneret orifices from the upper end, and after absorbing water, the expansion rubber rollers expand to become thick and fill the whole spinneret orifices; the cleaning die descends to pull the multiple sets of expansion rubber rollers out of the spinneret orifices, residual stains in the spinneret orifices are brought out through friction acting force, and the auxiliary cleaning effect is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of polyester fiber production, and particularly relates to a production device for polyester fiber monofilaments. Background Art

[0002] Polyester fibers have the characteristics of high strength, wear resistance, antibacterial property, easy drying, etc., and are widely used in the fields of clothing, textiles, industrial materials, etc. In addition, polyester fibers can also be colored to ensure bright and lasting colors, including two knitting structures of monofilaments and double filaments; the production of polyester fibers includes multiple steps such as polymerization reaction, conical granulation, melt spinning, cooling and solidification, and winding and cutting. Among them, melt spinning is the core production step of polyester fibers, which determines the quality of the finished product.

[0003] Existing production devices for polyester fiber monofilaments have many technical defects when in use. First, the spinneret needs to be regularly disassembled for manual cleaning during melt spinning. This has a low degree of automation, is time-consuming and laborious, and the sticky substances on the disassembled spinneret have solidified, increasing the cleaning difficulty; second, the current cleaning method for the spinneret mainly relies on high-pressure water flow flushing, but the flushing uniformity of the water flow is poor and the range is small, and the cleaning effect is not ideal for fine spinneret holes; third, when the melt is heated in the heating chamber, there is a problem of poor heating uniformity, which causes the temperatures of the channels of the spinneret to be inconsistent, further leading to local viscosity differences and uneven flow rates in each channel, reducing the spinning quality. In summary, considering that the existing facilities cannot meet the working requirements, for this reason, we propose a production device for polyester fiber monofilaments. Summary of the Invention

[0004] The main purpose of the present invention is to provide a production device for polyester fiber monofilaments, which can effectively solve the problems in the background art.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is as follows: A production device for polyester fiber monofilaments includes a spinning box. The upper end of the spinning box is installed with a screw extruder through two groups of brackets. One end of the screw extruder is provided with a drive box. The right end of the screw extruder is connected with a feed hopper through a feed pipe. The left end of the screw extruder is vertically installed with a metering pipe. A metering pump is installed on the metering pipe. The lower end of the metering pipe extends into the spinning box and is provided with a heating base. The inside of the heating base includes an upper positioning joint, a metal bellows, and a lower positioning joint.

[0006] As a preferred embodiment of the production equipment for a single filament of polyester fiber according to the present invention, wherein: a metal bellows is used between the upper positioning joint and the lower positioning joint, the metal bellows has deformation resetability, the upper positioning joint and the lower positioning joint are respectively fixed inside the heating seat, and the metal bellows is located at the middle position inside the heating seat.

[0007] As a preferred embodiment of the production equipment for a single filament of polyester fiber according to the present invention, wherein: a sealing sleeve is arranged at a lower position inside the lower positioning joint, a filter screen is installed inside the sealing sleeve, the sealing sleeve is for the spinneret to extend into, the upper end surface of the spinneret is evenly provided with flow splitting holes, the number of the flow splitting holes is preferably 4 - 6 groups, the lower end surface of the spinneret is evenly provided with spinning holes, positioning platforms are symmetrically and fixedly arranged at both ends of the upper positioning joint, the number of the positioning platforms is 2 groups, sliding blocks are symmetrically installed at both ends of the lower positioning joint, the number of the sliding blocks is 2 groups, limiting sliding grooves for the sliding blocks to move up and down are symmetrically opened on the inner wall of the heating seat, and rotating rollers are symmetrically installed between the positioning platforms and the sliding blocks.

[0008] As a preferred embodiment of the production equipment for a single filament of polyester fiber according to the present invention, wherein: the rotating roller passes through the sliding block downward, a lead screw nut sleeve is installed inside the sliding block, a threaded portion interacting with the lead screw nut sleeve is arranged at a corresponding position on the rotating roller, the upper end of the rotating roller is connected to the positioning platform through a first bearing seat, the lower end of the rotating roller is connected to the bottom of the heating seat through a first bearing seat, and first sprockets are sleeved on the middle - upper parts of the two rotating rollers.

[0009] As a preferred embodiment of the production equipment for a single filament of polyester fiber according to the present invention, wherein: a first servo - motor is vertically installed inside the spinning box and behind the heating seat, the lower end of the first servo - motor is connected to a rotating shaft, the lower end of the rotating shaft is fixed to the inner wall of the spinning box through a second bearing seat, two second sprockets are sequentially sleeved on the rotating shaft up and down, the two second sprockets are respectively connected to the first sprockets on the two rotating rollers by chains, and a chain port for the chain to move is opened on the rear end surface of the heating seat.

[0010] As a preferred embodiment of the production equipment for a single filament of polyester fiber according to the present invention, wherein: a moving cylinder is horizontally installed at the left - hand lower position of the bottom of the spinning box, a square cylinder rod extends horizontally outward inside the moving cylinder, a limiting rotating groove is horizontally opened outward inside the square cylinder rod, a rotating rod is movably arranged inside the limiting rotating groove, the end of the rotating rod is connected to the outer side surface of the spinneret through a curved connecting piece, and a ceramic washer acting on the sealing sleeve is sleeved on the outer circumference of the spinneret.

[0011] As a preferred solution of the polyester fiber monofilament production equipment described in the present invention, one end of the rotating rod away from the curved connecting piece is fixed by a damping bearing seat and a square cylinder rod, the middle part of the rotating rod and the limiting rotating groove are connected by an inner bearing, a large gear is sleeved on the rotating rod and located between the damping bearing seat and the inner bearing, a small gear is meshed on the upper end of the large gear, and the small gear is sleeved on the output shaft of the second servo motor, a drive housing is installed on the upper end face of the square cylinder rod, and the second servo motor is horizontally arranged through the outer side face of the drive housing.

[0012] As a preferred solution of the production equipment of the polyester fiber monofilament described in the present invention, a cleaning seat is arranged on the right side of the middle part of the spinning box, a cleaning and drying chamber is opened in the middle position inside the cleaning seat, a displacement channel is opened horizontally in the bottom area of ​​the spinning box located in the spinneret area, the displacement channel is connected to the cleaning and drying chamber, the square cylinder rod drives the spinneret to move linearly from the displacement channel to the cleaning and drying chamber, a small air storage tank is placed on the upper end surface of the spinning box and located between the two groups of brackets, an air compressor is arranged upward inside the small air storage tank, and an air pressure pipe is installed downward at the middle position of the bottom of the small air storage tank.

[0013] As a preferred solution of the polyester fiber monofilament production equipment described in the present invention, the lower end of the air pressure tube is connected to a gas-liquid mixing cylinder, the gas-liquid mixing cylinder is located at the top of the cleaning and drying chamber, the lower end of the gas-liquid mixing cylinder is connected to a flushing pipe, the lower end of the flushing pipe is equipped with a multi-hole nozzle acting on the spinneret, the oblique side of the gas-liquid mixing cylinder is connected to a water supply pipe, the left end face of the small air storage tank is fixedly equipped with a vacuum pump group, the vacuum port of the vacuum pump group is connected to a hot vacuum pipe, the hot vacuum pipe extends toward the inside of the spinning box and into the inside of the heating seat, the bottom of the small air storage tank is symmetrically connected with two groups of hot air drying pipes located on both sides of the air pressure tube, and the hot air drying pipes extend downward to act on both sides of the spinneret.

[0014] As a preferred solution of the polyester fiber monofilament production equipment described in the present invention, a waterproof box is provided at the lower end of the cleaning seat and directly below the cleaning and drying chamber, an upper end of the waterproof box is provided with an opening connected to the cleaning and drying chamber, a waterproof sealing plate is movably installed at the opening, a hydraulic telescopic cylinder is vertically installed at the bottom of the waterproof box, a hydraulic rod is movably provided inside the hydraulic telescopic cylinder, a cleaning mold is provided at the upper end of the hydraulic rod, and a plurality of groups of expansion rubber rollers are evenly installed on the upper end surface of the cleaning mold, each group of the expansion rubber rollers is correspondingly inserted into the spinneret holes of the spinneret, and becomes thicker after absorbing moisture and filling the spinneret holes.

[0015] As a preferred embodiment of the production equipment for a single filament of polyester fiber according to the present invention, wherein: a storage sleeve is vertically riveted to the front end face of the heating seat, a camshaft is rotatably arranged in the storage sleeve, both the upper and lower ends of the camshaft are fixed to the inner wall of the storage sleeve through third bearing seats, the camshaft extends downward and is connected to a third servo motor through a coupling, the third servo motor penetrates through the outer side face of the storage sleeve, circular cams are equidistantly sleeved on the camshaft, cam portions are arranged on the cam surfaces of the circular cams, each group of the cam portions acts on the corresponding vibrator, and the number of the circular cams and the vibrators is preferably 3 - 4 groups.

[0016] As a preferred embodiment of the production equipment for a single filament of polyester fiber according to the present invention, wherein: the vibrator includes a positioning cylinder, a wheel seat, a pulley, a push rod, a stop seat, a limit rod hole, a return spring, a curved push plate, and a buffer wheel. A positioning cylinder is horizontally installed on the inner side face of the heating seat, a wheel seat is movably arranged at the outer end of the positioning cylinder, a pulley is rotatably arranged in the wheel seat, a part of the pulley extends out of the wheel seat and acts on the cam surface of the circular cam, a push rod is welded to the end face of the wheel seat away from the circular cam, the push rod passes through the positioning cylinder and extends into the interior of the heating seat, a stop seat is fixed in the middle of the positioning cylinder, a limit rod hole for the push rod to pass through is opened at the middle position of the stop seat, a return spring sleeved on the outer side of the push rod is fixed between the wheel seat and the stop seat, a curved push plate is hinged to the end of the push rod away from the wheel seat, and several groups of buffer wheels acting on the outer surface of the metal bellows are installed on the curved surface of the curved push plate, and the number of the buffer wheels is preferably 3 - 5 groups.

[0017] As a preferred embodiment of the production equipment for a single filament of polyester fiber according to the present invention, wherein: the small gear is located inside the drive housing.

[0018] As a preferred embodiment of the production equipment for a single filament of polyester fiber according to the present invention, wherein: a drive motor group is arranged in the drive box, and a screw is rotatably arranged inside the screw extruder.

[0019] As a preferred embodiment of the production equipment for a single filament of polyester fiber according to the present invention, wherein: a cooling channel is fixedly arranged on the lower end face of the spinning box and directly below the spinneret.

[0020] As a preferred embodiment of the production equipment for a single filament of polyester fiber according to the present invention, wherein: a storage groove is opened on the outer side face of the cleaning seat, a water supply tank is installed in the storage groove, a water supply pump is installed in the water supply tank, and the water supply tank is connected to a water supply pipe.

[0021] As a preferred embodiment of the production equipment for a single filament of polyester fiber according to the present invention, wherein: two groups of legs are symmetrically welded to both sides of the lower end face of the spinning box.

[0022] As a preferred embodiment of the production equipment for a single polyester fiber filament according to the present invention, wherein: a diversion slope is provided at the bottom of the cleaning and drying chamber, a sewage discharge pipe is connected to the lower end of the diversion slope, and the sewage discharge pipe extends downward outside the spinning box.

[0023] As a preferred embodiment of the production equipment for a single polyester fiber filament according to the present invention, wherein: electric heaters are evenly distributed inside the heating seat, and the heating temperature is greater than 300 °C.

[0024] As a preferred embodiment of the production equipment for a single polyester fiber filament according to the present invention, wherein: a first electromagnetic pulse valve is installed at the upper end of the air pressure pipe, and second electromagnetic pulse valves are installed at the upper ends of the two groups of hot air drying pipes, and the number of the second electromagnetic pulse valves is 2 groups.

[0025] The present invention provides a production equipment for a single polyester fiber filament by improvement. Compared with the prior art, it has the following remarkable improvements and advantages: First, start the first servo motor. After a series of transmissions, the two rotating rollers in the heating seat rotate, causing the two sliding blocks to move upward along the limiting sliding grooves. The lower positioning joint follows and moves upward to compress the metal bellows, and the spinneret and the sealing sleeve are separated up and down. Then start the moving cylinder, and the square cylinder rod extends out, driving the spinneret into the cleaning and drying chamber, so that the spinneret is directly below the multi-hole nozzle. Without disassembly, automatic and timely cleaning can be realized, which saves time and effort and has a high degree of automation.

[0026] Start the second servo motor. After a series of transmissions, the rotating rod drives the spinneret to rotate. On the one hand, it achieves the effect of cleaning while rotating, timely cleaning and increasing the cleaning range. On the other hand, before the drying operation, the water on its own surface is thrown off through the rotational movement, which is convenient for subsequent drying and shortens the drying time.

[0027] With the advantage of water flushing, start the hydraulic telescopic cylinder. The hydraulic rod extends upward, driving the cleaning die into the cleaning and drying chamber, and making each group of expansion rubber rollers correspondingly inserted into the spinneret holes of the spinneret. Water continuously enters from the upper end of the spinneret holes. After the expansion rubber rollers absorb water, they expand and thicken, filling the entire spinneret hole. At this time, let the hydraulic rod drive the cleaning die to descend, pulling out several groups of expansion rubber rollers from the spinneret holes, and bringing out the residual stains in the spinneret holes through the frictional force, achieving the role of auxiliary cleaning and significantly improving the cleaning effect on the spinneret holes.

[0028] With the advantages of the metal bellows, the third servo motor is started to drive the camshaft to rotate. During one revolution of the circular cam, the cam part moves to the position of the pulley, squeezes the pulley, causing the push rod in the corresponding vibrator to move horizontally. The outer surface of the metal bellows is contacted by several sets of buffer wheels, which push the metal bellows to bend locally. Then the cam part leaves the pulley position, and under the compression elastic force of the return spring, it drives the push rod and the curved push plate to reset. At this time, the metal bellows resets by its own deformation and is accompanied by severe mechanical vibration. In this way, cyclic internal shaking is generated, causing the melt in the metal bellows to be stirred in the horizontal direction. The melt is heated evenly and sufficiently. Several sets of vibrators work together to ensure that the melt in the heating seat is heated evenly, improve the spinning quality, and reduce the blockage rate at the filter screen. Description of the Drawings

[0029] Figure 1 It is a schematic diagram of the overall structure of a production device for a single filament of polyester fiber according to the present invention in one direction; Figure 2 It is a schematic diagram of the overall structure of a production device for a single filament of polyester fiber according to the present invention in another direction; Figure 3 It is a schematic diagram of the external structure of the heating seat according to the present invention in one direction; Figure 4 It is a schematic diagram of the external structure of the heating seat according to the present invention in another direction; Figure 5 It is a schematic diagram of the specific internal structure of the heating seat according to the present invention; Figure 6 It is a schematic diagram of the transmission structure of the rotating roller according to the present invention; Figure 7 It is a schematic diagram of the connection of the moving cylinder according to the present invention; Figure 8 It is a schematic diagram of the transmission structure of the spinneret according to the present invention; Figure 9 It is a schematic diagram of the internal structure of the cleaning seat according to the present invention; Figure 10 It is a schematic diagram of the installation position of the waterproof box in the second embodiment according to the present invention; Figure 11 It is a schematic diagram of the internal structure of the waterproof box according to the present invention; Figure 12 It is a schematic diagram of the external structure of the heating seat in the third embodiment according to the present invention; Figure 13 It is a schematic diagram of the internal transmission structure of the storage sleeve according to the present invention; Figure 14 It is a cross-sectional view of the vibrator according to the present invention.

[0030] In the figure: 1, spinning box; 2, support leg; 3, bracket; 4, screw extruder; 5, drive box; 6, feed pipe; 7, feed hopper; 10, metering pump; 11, metering pipe; 12, heating base; 13, upper positioning joint; 14, metal bellows; 15, lower positioning joint; 16, sealing sleeve; 17, positioning table; 18, sliding block; 20, rotating roller; 21, first bearing seat; 22, threaded part; 23, screw-nut sleeve; 24, first sprocket; 25, second sprocket; 26, chain; 27, second bearing seat; 28, rotating shaft; 29, first servo motor; 30, spinneret; 31, shunt hole; 32, spinneret hole; 33, cleaning base; 34, limit chute; 35, chain port; 36, sewage pipe; 37, cooling channel; 38, first electromagnetic pulse valve; 39, second electromagnetic pulse valve; 40, moving cylinder; 41, square cylinder rod; 42, limit rotating groove; 43, rotating rod; 44, curved connecting piece; 45, ceramic washer; 46, displacement channel; 47, cleaning and drying chamber; 48, storage groove; 49, water supply tank; 50, damping bearing seat; 51, inner bearing; 52, large gear; 53, small gear; 54, second servo motor; 55, drive housing; 60, small gas storage tank; 61, air compressor; 62, air pressure pipe; 63, gas-liquid mixing cylinder; 64, water supply pipe; 65, flushing pipe; 66, multi-hole spray head; 67, air extraction pump group; 68, hot air extraction pipe; 69, hot air drying pipe; 70, waterproof tank; 71, hydraulic telescopic cylinder; 72, hydraulic rod; 73, cleaning die; 74, expandable rubber roller; 80, storage sleeve; 81, camshaft; 82, third bearing seat; 83, third servo motor; 84, round cam; 85, cam part; 9, vibrator; 91, positioning cylinder; 92, wheel seat; 93, pulley; 94, push rod; 95, stop seat; 96, limit rod hole; 97, return spring; 98, curved push plate; 99, buffer wheel. Specific embodiments

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Embodiment 1

[0032] As Figures 1-9As shown in the figure, this embodiment provides a production device for polyester fiber monofilaments, including a spinning box 1. On both sides of the lower end face of the spinning box 1, legs 2 are symmetrically welded to play a supporting role. At the upper end of the spinning box 1, a screw extruder 4 is installed through two groups of brackets 3. Inside the screw extruder 4, a screw is rotatably arranged. At one end of the screw extruder 4, there is a drive box 5, and a drive motor group is arranged inside the drive box 5. The right end of the screw extruder 4 is connected to a feed hopper 7 through a feed pipe 6. Vertically installed at the left end of the screw extruder 4 is a metering pipe 11, and a metering pump 10 is installed on the metering pipe 11. The metering pump 10 plays the role of metering and increasing the extrusion pressure. The lower end of the metering pipe 11 extends into the spinning box 1 and is provided with a heating seat 12. Inside the heating seat 12, electric heaters are evenly distributed, and the electric heaters play the role of constant-temperature heating.

[0033] Specifically, the inside of the heating seat 12 includes an upper positioning joint 13, a metal bellows 14, and a lower positioning joint 15, as Figure 5 and 6 shown.

[0034] In this embodiment, between the upper positioning joint 13 and the lower positioning joint 15, a metal bellows 14 is used. The metal bellows 14 has deformation resetability. The upper positioning joint 13 is fixed inside the heating seat 12. The metal bellows 14 is located in the middle position inside the heating seat 12 and has a certain movement gap around it.

[0035] Furthermore, a sealing sleeve 16 is arranged at a lower position inside the lower positioning joint 15. A filter screen is installed inside the sealing sleeve 16, and the filter screen plays the role of filtering impurities. The sealing sleeve 16 allows the spinneret 30 to extend into it (the upper end of the spinneret 30 extends in), as Figures 3-6 shown.

[0036] Among them, on the upper end face of the spinneret 30, diversion holes 31 are evenly opened. On the lower end face of the spinneret 30, spinneret holes 32 are evenly opened. At the lower end of the spinneret 30, a horizontal bearing frame is arranged to play a role of force bearing and support, as Figures 7-9 shown.

[0037] Furthermore, positioning platforms 17 are symmetrically and fixedly arranged at both ends of the upper positioning joint 13. Sliding blocks 18 are symmetrically installed at both ends of the lower positioning joint 15. On the inner wall of the heating seat 12, limit sliding grooves 34 for the up and down movement of the sliding blocks 18 are symmetrically opened, and the two fit together. Rotating rollers 20 are symmetrically installed between the positioning platforms 17 and the sliding blocks 18, as Figure 3 、 5 and 6 shown.

[0038] Specifically, the rotating roller 20 passes downward through the sliding block 18. A lead screw nut sleeve 23 (with a lead screw nut for helical movement inside) is installed inside the sliding block 18. A threaded portion 22 that interacts with the lead screw nut sleeve 23 is provided at the corresponding position on the rotating roller 20. The upper end of the rotating roller 20 is connected to the positioning table 17 through a first bearing block 21, and the lower end of the rotating roller 20 is connected to the bottom of the heating seat 12 through a first bearing block 21. The upper middle parts of the two groups of rotating rollers 20 are both sleeved with first sprockets 24, and there is a height difference between the two groups of first sprockets 24, as Figure 5 and 6 shown.

[0039] Among them, a first servo motor 29 is vertically installed inside the spinning box 1 and behind the heating seat 12. The lower end of the first servo motor 29 is connected to a rotating shaft 28. The lower end of the rotating shaft 28 is fixed to the inner wall of the spinning box 1 through a second bearing block 27. Two groups of second sprockets 25 are sequentially sleeved on the rotating shaft 28 up and down. The two groups of second sprockets 25 are respectively connected to the first sprockets 24 on the two groups of rotating rollers 20 by chains 26. A chain port 35 for the movement of the chain 26 is opened on the rear end face of the heating seat 12. The chain port 35 is very small and does not affect the heating inside the box, as Figures 4-6 shown.

[0040] Furthermore, a moving cylinder 40 is horizontally installed at the left position at the bottom of the spinning box 1. A square cylinder rod 41 extends horizontally outward inside the moving cylinder 40, as Figure 2 、 4 and 7 shown.

[0041] Among them, a limiting rotating groove 42 is horizontally opened outward inside the square cylinder rod 41. A rotating rod 43 is movably arranged inside the limiting rotating groove 42. The end of the rotating rod 43 is connected to the outer side face of the spinneret 30 through a curved connecting piece 44. A ceramic washer 45 acting on the sealing sleeve 16 is sleeved on the outer periphery of the spinneret 30. The ceramic washer 45 has the characteristics of heat resistance and high sealing, and plugs the lower end of the sealing sleeve 16, as Figure 7 and 8 shown.

[0042] Furthermore, one end of the rotating rod 43 away from the curved connecting piece 44 is fixed to the square cylinder rod 41 through a damping bearing block 50. The damping bearing block 50 has a certain damping force to prevent the self-rotation and inertial movement of the rotating rod 43. The middle part of the rotating rod 43 is connected to the limiting rotating groove 42 through an inner bearing 51. A large gear 52 is sleeved on the rotating rod 43 between the damping bearing block 50 and the inner bearing 51, as Figure 7 and 8 shown.

[0043] The upper end of the large gear 52 is meshed with a small gear 53, which is sleeved on the output shaft of the second servo motor 54. The upper end surface of the square cylinder rod 41 is equipped with a driving housing 55, and the small gear 53 is located inside the driving housing 55. The second servo motor 54 penetrates the outer side surface of the driving housing 55 and is horizontally arranged. Figure 7 and 8 shown.

[0044] Furthermore, a cleaning seat 33 is provided at the right position in the middle of the spinning box 1, and a cleaning and drying chamber 47 is provided in the middle position of the cleaning seat 33. A displacement channel 46 is provided horizontally at the bottom of the spinning box 1 in the area of ​​the spinneret 30. The displacement channel 46 serves as a limiting guide. The displacement channel 46 is connected to the cleaning and drying chamber 47. The square cylinder rod 41 drives the spinneret 30 to move linearly from the displacement channel 46 to the cleaning and drying chamber 47. Figure 1 and 2 shown.

[0045] Furthermore, a small air storage tank 60 is placed on the upper end surface of the spinning box 1 and between the two groups of brackets 3. An air compressor 61 is arranged upward inside the small air storage tank 60. A pneumatic tube 62 is installed downward at the middle position of the bottom of the small air storage tank 60. A No. 1 electromagnetic pulse valve 38 is installed at the upper end of the pneumatic tube 62. A gas-liquid mixing cylinder 63 is connected to the lower end of the pneumatic tube 62. The gas-liquid mixing cylinder 63 is located at the top of the cleaning and drying chamber 47, as shown in FIG. Figure 1 and 9 shown.

[0046] The lower end of the gas-liquid mixing cylinder 63 is connected to a flushing pipe 65, and the lower end of the flushing pipe 65 is provided with a porous nozzle 66 acting on the spinneret 30. Figure 9 shown.

[0047] The oblique side of the gas-liquid mixing cylinder 63 is connected to a water supply pipe 64, and the outer side of the cleaning seat 33 is provided with a receiving groove 48, in which a water supply tank 49 is installed, and a water supply pump is installed in the water supply tank 49, and the water supply tank 49 is connected to the water supply pipe 64. Figure 1 and 2 shown.

[0048] Furthermore, a vacuum pump assembly 67 is fixedly mounted on the left end surface of the small air storage tank 60 , and a hot vacuum pipe 68 is connected to the vacuum port of the vacuum pump assembly 67 .

[0049] Specifically, the hot air extraction pipe 68 extends into the interior of the spinning box 1 and enters the interior of the heating base 12. By utilizing the residual heat inside the heating base 12, the purpose of energy conservation is achieved. At the bottom of the small air storage tank 60 and symmetrically on both sides of the air pressure pipe 62, two groups of hot air drying pipes 69 are connected. At the upper ends of the two groups of hot air drying pipes 69, second electromagnetic pulse valves 39 are installed. The hot air drying pipes 69 extend downward and act on both sides of the spinneret 30, as shown in Figure 1 , 3 and Figures 9.

[0050] Furthermore, a cooling channel 37 is fixedly arranged on the lower end surface of the spinning box 1 and directly below the spinneret 30, which plays a role in cooling and temperature reduction, as shown in Figure 2 Figure 9.

[0051] Furthermore, a diversion slope is arranged at the bottom of the cleaning and drying chamber 47. The lower end of the diversion slope is connected to a sewage discharge pipe 36, and the sewage discharge pipe 36 extends downward out of the spinning box 1, as shown in Figure 2 Figure 14.

[0052] When this embodiment is in use, the polyester masterbatch is put into the screw extruder 4 from the feed hopper 7 through the feed pipe 6. After being extruded by the screw into molten polyester (referred to as melt), it is exported after being metered through the metering pipe 11. The melt is pressed into the inner part of the metal bellows 14 of the heating base 12 by the metering pump 10, and polymerizes while being heated inside and waits for spinning. The melt enters evenly through the diversion holes 31 of the spinneret 30 and is extruded into fine filaments when passing through the spinning holes 32 of the spinneret 30. Then, the fine filaments are quickly cooled by cold air in the cooling channel 37 to form polyester fibers.

[0053] When it is necessary to clean the spinneret 30 after the spinning is completed, the first servo motor 29 is immediately started. The rotating shaft 28 drives the two groups of second sprockets 25 to rotate. The two groups of second sprockets 25 are respectively driven by chains 26, causing the two groups of rotating rollers 20 in the heating base 12 to rotate synchronously and at the same speed. As a result, the two sliding blocks 18 on the lower positioning joint 15 move upward along the limit sliding grooves 34 (the screw nut sleeve 23 and the threaded part 22 act on each other), and the lower positioning joint 15 moves upward accordingly and compresses the metal bellows 14. The spinneret 30 and the sealing sleeve 16 that were originally inside the sealing sleeve 16 are separated up and down.

[0054] At this time, the moving cylinder 40 is started, the square cylinder rod 41 extends out, drives the spinneret 30 to move linearly along the displacement channel 46, and finally enters the cleaning and drying chamber 47, so that the spinneret 30 is directly below the porous nozzle 66. At this time, the first electromagnetic pulse valve 38 is opened, and the air in the small air storage tank 60 surges out from the air pressure pipe 62, enters the air-liquid mixing cylinder 63, and mixes with the clear water entering from the water supply pipe 64 to generate a water flow impact force. The mixed water flow is led out from the flushing pipe 65, and the porous nozzle 66 is used to perform high-pressure flushing on the spinneret 30. At the same time, the second servo motor 54 is started, drives the small gear 53 to rotate, and causes the large gear 52 to rotate through meshing and deceleration, so that the rotating rod 43 drives the spinneret 30 to rotate at a low speed, achieving the effect of cleaning while rotating, improving the cleaning range. The wastewater generated by flushing converges to the diversion slope position and is discharged outwards from the sewage pipe 36.

[0055] After the cleaning is completed, the air extraction pump group 67 is started, and the waste heat gas inside the heating seat 12 (a large amount of waste heat remains inside the heating seat 12 just after the spinning work is completed) is extracted by the hot air extraction pipe 68 and sent into the small air storage tank 60 for temporary storage (the air in the small air storage tank 60 is used up during the cleaning process). While extracting the air, the spinneret 30 rotates at a relatively high speed driven by the rotating rod 43 to throw off the water on its own surface. Then, two groups of second electromagnetic pulse valves 39 are opened, and the hot gas in the small air storage tank 60 surges out from the hot air drying pipe 69 to perform hot air drying on the spinneret 30. After the drying operation is completed, the square cylinder rod 41 drives the spinneret 30 to return linearly, and then the lower positioning joint 15 drives the sealing sleeve 16 to move downward and re-engage with the spinneret 30, and cooperate with the ceramic gasket 45 for sealing use. Embodiment 2

[0056] As Figures 10-11 shown, a waterproof box 70 is provided at the lower end of the cleaning seat 33 and directly below the cleaning and drying chamber 47. An opening communicating with the cleaning and drying chamber 47 is provided at the upper end of the waterproof box 70, and a waterproof sealing plate (a door closer is installed on the waterproof sealing plate) is movably installed at the opening.

[0057] Specifically, a hydraulic telescopic cylinder 71 is vertically installed at the bottom of the waterproof box 70. A hydraulic rod 72 is movably arranged upward inside the hydraulic telescopic cylinder 71. A cleaning mold 73 is provided at the upper end of the hydraulic rod 72. A plurality of groups of expanding rubber rollers 74 are uniformly installed on the upper end surface of the cleaning mold 73. The expanding rubber rollers 74 are in a vertical state, and the thickness is smaller than the aperture of the spinneret holes 32. Each group of expanding rubber rollers 74 is correspondingly inserted into the spinneret holes 32 of the spinneret 30 and becomes thicker after absorbing water to fill the spinneret holes 32.

[0058] When this embodiment is in use, in the second half of the cleaning process, the spinneret 30 stops rotating, and the hydraulic telescopic cylinder 71 is started. The hydraulic rod 72 extends upward, driving the cleaning die 73 to extend into the cleaning and drying chamber 47 from the opening (the bottom of the cleaning die 73 seals the opening, playing a role in sealing and preventing water leakage), and each group of expansion rubber rollers 74 is correspondingly inserted into the spinneret holes 32 of the spinneret 30. Since water continuously enters from the upper end of the spinneret holes 32, after the expansion rubber rollers 74 absorb water, they expand and thicken, filling the entire spinneret hole 32. At this time, the hydraulic rod 72 drives the cleaning die 73 to descend, pulling out several groups of expansion rubber rollers 74 from the spinneret holes 32, and bringing out the residual stains in the spinneret holes 32 through frictional force, achieving the role of auxiliary cleaning. The wet expansion rubber rollers 74 are reused through subsequent cleaning and drying in the cleaning seat 33. Embodiment III

[0059] As Figures 12-14 shown, a receiving sleeve 80 is vertically riveted to the front end face of the heating seat 12. A camshaft 81 is rotatably arranged in the receiving sleeve 80, and both the upper and lower ends of the camshaft 81 are fixed to the inner wall of the receiving sleeve 80 through third bearing seats 82. Among them, the camshaft 81 extends downward and is connected to a third servo motor 83 through a coupling. The third servo motor 83 is arranged through the outer side face of the receiving sleeve 80.

[0060] Among them, circular cams 84 are equidistantly sleeved on the camshaft 81. Cam portions 85 are arranged on the wheel surfaces of the circular cams 84. Each group of cam portions 85 acts on the corresponding vibrator 9. The initial movement positions of the cam portions 85 on each group of circular cams 84 are different, ensuring that the movement states of different positions of the metal bellows 14 are different and improving its shaking degree.

[0061] Specifically, the vibrator 9 includes a positioning cylinder 91, a wheel seat 92, a pulley 93, a push rod 94, a retaining seat 95, a limiting rod hole 96, a return spring 97, a curved push plate 98, and a buffer wheel 99, as Figure 14 shown.

[0062] In this embodiment, the positioning cylinder 91 is horizontally installed on the inner side face of the heating seat 12. The outer end of the positioning cylinder 91 is movably provided with the wheel seat 92. The positioning cylinder 91 plays a role in limiting and guiding. The pulley 93 is rotatably arranged in the wheel seat 92. A part of the pulley 93 extends out of the wheel seat 92 and acts on the wheel surface of the circular cam 84. A push rod 94 is welded to the end face of the wheel seat 92 away from the circular cam 84. The push rod 94 passes through the positioning cylinder 91 and extends into the interior of the heating seat 12.

[0063] In this embodiment, a retaining seat 95 is fixed in the middle of the positioning cylinder 91. A limiting rod hole 96 for the push rod 94 to pass through is provided at the middle position of the retaining seat 95. The limiting rod hole 96 plays a role in limiting and guiding. A return spring 97 sleeved outside the push rod 94 is fixed between the wheel seat 92 and the retaining seat 95 (the return spring 97 is used to maintain the contact force between the circular cam 84 and the pulley 93). One end of the push rod 94 away from the wheel seat 92 is hinged with a curved push plate 98. A number of buffer wheels 99 acting on the outer surface of the metal bellows 14 are installed on the curved surface of the curved push plate 98. The buffer wheels 99 move along the outer surface of the metal bellows 14, converting part of the contact force into a sliding force to achieve the effect of buffer protection.

[0064] When this embodiment is in use, when heating the melt in the metal bellows 14, the third servo motor 83 is started to drive the camshaft 81 to rotate, causing a number of circular cams 84 to perform circular motion. During the process of the circular cam 84 moving one week, the cam part 85 moves to the position of the pulley 93, squeezing the pulley 93, causing the horizontal movement of the wheel seat 92 and the push rod 94 in the corresponding vibrator 9. The curved push plate 98 moves towards the metal bellows 14. By using a number of buffer wheels 99 to contact the outer surface of the metal bellows 14, the metal bellows 14 is pushed to bend locally. Then the cam part 85 leaves the position of the pulley 93, and drives the push rod 94 and the curved push plate 98 to reset under the compression elastic force of the return spring 97. At this time, the metal bellows 14 relies on its own deformation to reset and is accompanied by severe mechanical vibration. In this way, cyclic internal shaking is generated, causing the melt in the metal bellows 14 to be stirred in the horizontal direction, increasing the degree of movement of the melt in the horizontal direction. A number of vibrators 9 work together to ensure that the melt in the heating seat 12 is evenly heated.

[0065] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0066] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A production device for polyester fiber monofilament, comprising a spinning box (1), characterized in that: A screw extruder (4) is mounted on the upper end of the spinning box (1) via two sets of brackets (3); a drive box (5) is disposed at one end of the screw extruder (4); a metering tube (11) is vertically mounted on the left end of the screw extruder (4); a metering pump (10) is mounted on the metering tube (11); and a heating seat (12) is disposed at the lower end of the metering tube (11) extending into the spinning box (1); The interior of the heating seat (12) comprises an upper positioning joint (13), a metal bellows (14) and a lower positioning joint (15); a metal bellows (14) is used between the upper positioning joint (13) and the lower positioning joint (15); the metal bellows (14) has a deformation restoring property; positioning platforms (17) are symmetrically fixedly arranged at both ends of the upper positioning joint (13); sliding blocks (18) are symmetrically installed at both ends of the lower positioning joint (15); limiting sliding grooves (34) for the sliding blocks (18) to move up and down are symmetrically opened on the inner wall of the heating seat (12); and rotating rollers (20) are symmetrically installed between the positioning platform (17) and the sliding blocks (18); A sealing sleeve (16) is arranged at a lower position inside the lower positioning joint (15), and the sealing sleeve (16) is for the spinneret (30) to extend into. A movable cylinder (40) is horizontally installed at a left position on the bottom of the spinning box (1). A square cylinder rod (41) is movably arranged inside the movable cylinder (40) to extend horizontally outward. A limited rotation groove (42) is horizontally provided inside the square cylinder rod (41) to extend horizontally outward. A rotation rod (43) is movably arranged in the limited rotation groove (42), and an end of the rotation rod (43) is connected to the outer side surface of the spinneret (30) via a curved connecting piece (44).

2. The production equipment of polyester fiber monofilament according to claim 1, characterized in that: The right end of the screw extruder (4) is connected to a feed hopper (7) via a feed pipe (6); the upper positioning joint (13) is fixed at an upper position inside the heating seat (12); and the metal bellows (14) is located at a middle position inside the heating seat (12); A filter screen is installed in the sealing sleeve (16), the upper end surface of the spinneret (30) is evenly provided with diversion holes (31), the lower end surface of the spinneret (30) is evenly provided with spinneret holes (32), and the outer periphery of the spinneret (30) is sleeved with a ceramic gasket (45) acting on the sealing sleeve (16).

3. The production equipment of polyester fiber monofilament according to claim 1, characterized in that: The rotating roller (20) passes downward through the sliding block (18), a screw nut sleeve (23) is installed inside the sliding block (18), and a threaded portion (22) that interacts with the screw nut sleeve (23) is provided at a corresponding position on the rotating roller (20). The upper end of the rotating roller (20) is connected to the positioning table (17) through a first bearing seat (21), and the lower end of the rotating roller (20) is connected to the bottom of the heating seat (12) through the first bearing seat (21), and the middle and upper parts of the two groups of rotating rollers (20) are both sleeved with a first sprocket (24).

4. The production equipment of polyester fiber monofilament according to claim 3, characterized in that: A first servo motor (29) is vertically installed inside the spinning box (1) and at the rear side of the heating seat (12); the lower end of the first servo motor (29) is connected to a rotating shaft (28); the lower end of the rotating shaft (28) is fixed by a second bearing seat (27) and the inner wall of the spinning box (1); two groups of second sprockets (25) are sequentially sleeved on the rotating shaft (28) from top to bottom; the two groups of second sprockets (25) are respectively connected to the first sprockets (24) on the two groups of rotating rollers (20) by means of chains (26); and a chain opening (35) for the chain (26) to move is provided on the rear end surface of the heating seat (12).

5. The production equipment of polyester fiber monofilament according to claim 4, characterized in that: One end of the rotating rod (43) away from the curved connecting piece (44) is fixed via a damping bearing seat (50) and a square cylinder rod (41); the middle of the rotating rod (43) and the limit rotating groove (42) are connected via an inner bearing (51); a large gear (52) is sleeved on the rotating rod (43) and located between the damping bearing seat (50) and the inner bearing (51); a small gear (53) is meshedly arranged at the upper end of the large gear (52); the small gear (53) is sleeved on the output shaft of a second servo motor (54); a driving housing (55) is mounted on the upper end surface of the square cylinder rod (41); and the second servo motor (54) is horizontally arranged to penetrate the outer side surface of the driving housing (55).

6. The production equipment of polyester fiber monofilament according to claim 5, characterized in that: A cleaning seat (33) is arranged at the right position of the middle part of the spinning box (1), and a cleaning and drying chamber (47) is opened in the middle position of the cleaning seat (33). A displacement channel (46) is opened horizontally in the area of ​​the spinneret (30) at the bottom of the spinning box (1), and the displacement channel (46) and the cleaning and drying chamber (47) are connected. The square cylinder rod (41) drives the spinneret (30) to move linearly from the displacement channel (46) to the cleaning and drying chamber (47). A small air storage tank (60) is placed on the upper end surface of the spinning box (1) and between the two groups of brackets (3). An air compressor (61) is arranged upward inside the small air storage tank (60), and a pressure pipe (62) is installed downward at the middle position of the bottom of the small air storage tank (60).

7. The production equipment of polyester fiber monofilament according to claim 6, characterized in that: The lower end of the air pressure tube (62) is connected to a gas-liquid mixing cylinder (63), which is located at the top of the cleaning and drying chamber (47). The lower end of the gas-liquid mixing cylinder (63) is connected to a flushing pipe (65), and the lower end of the flushing pipe (65) is equipped with a multi-hole nozzle (66) that acts on the spinneret (30). The oblique side of the gas-liquid mixing cylinder (63) is connected to a water supply pipe (64). A vacuum pump group (67) is fixedly installed on the left end surface, and a hot vacuum pipe (68) is connected to the vacuum port of the vacuum pump group (67). The hot vacuum pipe (68) extends into the interior of the spinning box (1) and into the interior of the heating seat (12). Two groups of hot air drying pipes (69) are symmetrically connected to the bottom of the small air storage tank (60) and located on both sides of the air pressure pipe (62). The hot air drying pipes (69) extend downward to act on both sides of the spinneret (30).

8. The production equipment of polyester fiber monofilament according to claim 7, characterized in that: A waterproof box (70) is provided at the lower end of the cleaning seat (33) and directly below the cleaning and drying chamber (47); an opening communicating with the cleaning and drying chamber (47) is provided at the upper end of the waterproof box (70); a waterproof sealing plate is movably installed at the opening; a hydraulic telescopic cylinder (71) is vertically installed at the bottom of the waterproof box (70); a hydraulic rod (72) is movably installed upward inside the hydraulic telescopic cylinder (71); a cleaning mold (73) is provided at the upper end of the hydraulic rod (72); a plurality of groups of expansion rubber rollers (74) are evenly installed on the upper end surface of the cleaning mold (73); each group of the expansion rubber rollers (74) is correspondingly inserted into the spinning hole (32) of the spinneret (30) and becomes thicker after absorbing water to fill the spinning hole (32).

9. The production equipment of polyester fiber monofilament according to claim 3, characterized in that: A storage sleeve (80) is vertically riveted to the front end surface of the heating seat (12), a camshaft (81) is rotatably arranged in the storage sleeve (80), the upper and lower ends of the camshaft (81) are fixed by a third bearing seat (82) and the inner wall of the storage sleeve (80), the camshaft (81) extends downward and is connected to a third servo motor (83) through a coupling, the third servo motor (83) is arranged to pass through the outer side surface of the storage sleeve (80), circular cams (84) are equidistantly sleeved on the camshaft (81), a cam portion (85) is arranged on the wheel surface of the circular cam (84), each group of the cam portions (85) and the corresponding vibrator (9) interact with each other, and the initial movement position of the cam portions (85) on each group of the circular cams (84) is different.

10. The production equipment of polyester fiber monofilament according to claim 9, characterized in that: The vibrator (9) comprises a positioning cylinder (91), a wheel seat (92), a pulley (93), a push rod (94), a stop seat (95), a limit rod hole (96), a return spring (97), a curved push plate (98), and a buffer wheel (99). The inner side surface of the heating seat (12) is horizontally mounted with the positioning cylinder (91), the outer end of the positioning cylinder (91) is movably provided with a wheel seat (92), the pulley (93) is rotatably provided inside the wheel seat (92), a part of the pulley (93) extends out of the wheel seat (92) and acts on the wheel surface of the circular cam (84), and the end surface of the wheel seat (92) away from the circular cam (84) is welded with a push rod. A rod (94) is provided, wherein the push rod (94) passes through the positioning cylinder (91) and extends toward the interior of the heating seat (12); a stopper seat (95) is fixed in the middle of the positioning cylinder (91); a limit rod hole (96) is provided in the middle of the stopper seat (95) for the push rod (94) to pass through; a return spring (97) is fixed between the wheel seat (92) and the stopper seat (95) and is sleeved on the outside of the push rod (94); a curved push plate (98) is hingedly connected to one end of the push rod (94) away from the wheel seat (92); and a plurality of buffer wheels (99) are installed on the curved surface of the curved push plate (98) and act on the outer surface of the metal bellows (14).

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