High-strength high-elasticity polyester POY pre-oriented yarn forming system and precise control method thereof

Abstract

This invention relates to the field of spinning and forming technology, and more particularly to a high-strength, high-elasticity polyester POY pre-oriented yarn forming system, including a bundle oiling device. The bundle oiling device is equipped with a cooling mechanism for cooling the yarn bundle. The cooling mechanism includes: a main component, including an outer cylinder disposed above the bundle oiling device, an inner cylinder disposed inside the outer cylinder, a top ring plate fixed between the upper end of the outer cylinder and the upper end of the inner cylinder, a bottom ring plate fixed between the lower end of the outer cylinder and the lower end of the inner cylinder, a plurality of circumferentially arranged sliding grooves inside the bottom ring plate, and a plurality of circumferentially arranged air outlets inside the outer cylinder; multi-directional blowing and radial adjustment enable the yarn bundle to automatically center and adapt to different processes; the opening and closing of the sealing plate and the linkage of the nozzle advance and retreat achieve automatic sealing and dust prevention; and the synchronous adjustment and staggered enclosure of the guide bar provide multi-height and multi-directional limiting.

Description

Technical Field

[0001] This invention relates to the field of spinning and forming technology, specifically to a high-strength, high-elasticity polyester POY pre-oriented yarn forming system and its precise control method. Background Technology

[0002] High-strength and high-elastic polyester POY pre-oriented yarn is an important variety of polyester filament. Its forming process adopts melt spinning technology, which mainly includes four steps: melt extrusion, cooling and forming, bundling and oiling, and high-speed winding. According to CN224148232U, a spinning and forming device based on colored luminescent pre-oriented yarn is disclosed. This technology discloses a technical solution including "a screw extruder, with a stirring mechanism on the left side of the screw extruder, and a filtering mechanism between the screw extruder and the stirring mechanism for filtering the melt. The filtering mechanism includes a multi-stage filtering unit and a backwashing unit. The multi-stage filtering unit is located above the stirring mechanism and includes a filter barrel. By setting up a multi-stage gradient filtering unit, a nested filter screen structure is adopted in the filter barrel, and the pore size of the first filter screen is smaller than that of the second filter screen, achieving graded fine filtration of the melt." This technology has the technical advantages of "effectively intercepting agglomerated particles and impurities formed by luminescent pigments or fluorescent dyes in the melt, significantly reducing the risk of spinneret clogging. Simultaneously, the filter screen can be detachably installed via a first and second slot, facilitating maintenance and replacement, and ensuring continuous and stable filtration effect." Existing side-blowing devices blow air onto the filament bundle from a single direction. Under the thrust of the airflow, the filament bundle deviates in the direction of the airflow, causing it to deviate from the center of the cooling channel. The distance between different parts of the deviated filament bundle and the air outlet surface is inconsistent, resulting in differences in the cooling rate between individual filaments and uneven pre-orientation within the same filament bundle. Ultimately, this affects the strength uniformity of the filament bundle and its subsequent tensile properties. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a high-strength, high-elasticity polyester POY pre-oriented yarn forming system and its precise control method. Multi-directional blowing and radial adjustment enable the yarn bundle to automatically center and adapt to different processes. The opening and closing of the sealing plate and the linkage of the nozzle advance and retreat achieve automatic sealing and dust prevention. The synchronous adjustment and staggered enclosure of the guide rod provide multi-height and multi-directional limiting.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a high-strength, high-elasticity polyester POY pre-oriented yarn forming system, comprising a bundling and oiling device, wherein the bundling and oiling device is equipped with a cooling mechanism for cooling the yarn bundle, the cooling mechanism comprising: The main component includes an outer cylinder positioned above the cluster oiling device, an inner cylinder inside the outer cylinder, a top ring plate fixed between the upper end of the outer cylinder and the upper end of the inner cylinder, a bottom ring plate fixed between the lower end of the outer cylinder and the lower end of the inner cylinder, a number of circumferentially arranged sliding grooves inside the bottom ring plate, and a number of circumferentially arranged air outlets inside the outer cylinder. The adjustment assembly includes several vertical plates arranged circumferentially between the inside of the outer cylinder and the outside of the inner cylinder. The lower end of the vertical plates is fixed with a slider and is slidably installed inside the slide groove. A sliding sleeve is slidably installed on the outside of the inner cylinder. Cylinders are installed on both sides of the top of the bottom ring plate to drive the sliding sleeve to rise and fall. Several first and second support rods are pivotally connected to the upper and lower ends of the outer wall of the sliding sleeve, respectively. A sealing plate is fixed on the outer wall of the vertical plates. Several ventilation holes are opened inside the inner cylinder. The actuation component includes several nozzles arranged circumferentially inside the inner cylinder. Second balance bars are fixed on both the upper and lower sides of the outer wall of the nozzles, and the other end of the second balance bar is fixed to the inner wall of the vertical plate.

[0005] Preferably, the adjustment assembly further includes guide rods disposed on the upper and lower sides of the nozzle, with a first balance rod fixed on the guide rod and fixedly connected to the inner wall of the vertical plate.

[0006] Preferably, the execution component further includes an annular tube fixed to the outside of the outer cylinder by a tube seat, with a plurality of circumferentially arranged tube heads fixedly connected to the inner circumference of the annular tube, and a movable tube slidably installed through the inside of the tube heads, with the other end of the movable tube connected and fixedly connected to the nozzle.

[0007] Preferably, the execution component further includes a connector fixed to the outer end of the annular pipe for connecting to an external gas supply device.

[0008] Preferably, the shape and size of the sealing plate are adapted to the air outlet, and the sealing plate is made of rubber.

[0009] Preferably, the adjacent guide rods are staggered vertically, and the guide rods together form a polygonal wire bundle channel.

[0010] Preferably, both the first and second balance bars penetrate the inner cylinder horizontally and slide with it; the movable tube penetrates the inner cylinder and the vertical plate horizontally in sequence and slides with them.

[0011] Preferably, the first support rod and the second support rod are of equal length and parallel to each other, and the outer ends of both the first support rod and the second support rod are pivotally connected to the inner wall of the vertical plate.

[0012] Preferably, the cooling mechanism is provided with a slow cooling mechanism, including a housing fixed to the upper end of the nozzle, a metal cylinder fixed inside the housing by a mounting bracket, and a plurality of vertically arranged electric heating sleeves installed on the outer wall of the metal cylinder.

[0013] This invention also discloses a precise control method for the pre-oriented yarn forming of high-strength, high-elasticity polyester POY, comprising the following steps: S1, the cylinder drives the sliding sleeve to rise and fall along the outer wall of the inner cylinder. The sliding sleeve drives all the vertical plates to move radially synchronously along the slide groove through the first support rod and the second support rod. The vertical plates drive the sealing plate to disengage from the air outlet. At the same time, the second balance rod and the first balance rod drive the nozzle and the guide rod to move radially synchronously to the target position, thus completing the synchronous setting of the blowing distance and the limit boundary. S2, the external air supply equipment supplies air to the annular pipe through the connector. The airflow is distributed to each nozzle through the pipe head and the movable pipe. The nozzle blows sheet-like airflow from multiple directions around the circumference to the filament bundle at the same time. Under the thrust of the airflow in each direction, the filament bundle automatically stays in the center of the inner cylinder. The airflow blowing through the filament bundle is discharged through the ventilation hole and the air outlet. S3, the filament bundle is cooled by the cooling mechanism from top to bottom and then enters the bundle oiling device for oiling. When the filament bundle deviates, it is radially blocked and limited by the guide rod. When the equipment is stopped, the cylinder drives the vertical plate to move outward until the sealing plate is embedded in the air outlet.

[0014] This invention provides a high-strength, high-elasticity polyester POY pre-oriented yarn forming system and its precise control method. Compared with the prior art, it has the following advantages: 1. Multiple nozzles blow air onto the filament bundle from all circumferential directions, and the blowing distance can be adjusted radially. The airflow thrust on the filament bundle is balanced in all directions, and it automatically stays in the center of the inner cylinder, which fundamentally reduces the filament bundle offset problem inherent in unidirectional side blowing. The adjustment of the blowing distance allows the speed of the airflow when it reaches the surface of the filament bundle to be flexibly changed according to different spinning varieties and process conditions. The same cooling mechanism can adapt to the cooling needs of different specifications of filament bundles without changing the hardware, and the equipment versatility is significantly improved.

[0015] 2. The sealing plate moves radially with the vertical plate. When the nozzle is working, the sealing plate automatically detaches from the air outlet, and the airflow is smoothly discharged through the ventilation hole and the air outlet. When the nozzle is not in use, the sealing plate automatically inserts into the air outlet to seal it. Through the opening and closing action and the advance and retreat of the nozzle, no separate operation is required. In the closed state, it prevents external dust and debris from entering the cavity between the outer cylinder and the inner cylinder, protecting the nozzle, guide rod and internal airflow channel, and reducing pollution and maintenance workload during equipment downtime.

[0016] 3. The guide rod and nozzle move radially synchronously. After the blowing distance is adjusted, the limit boundary of the guide rod changes automatically. There is no need for manual calibration of the guide rod position. The adjustment process is completed in one step. Adjacent guide rods are staggered vertically, providing mechanical limits at multiple heights along the filament bundle axis. The guide rods enclose and form a polygonal filament bundle channel. The filament bundle is protected by limits at multiple heights and in multiple directions. The reliability of anti-deviation is significantly enhanced compared with the single-layer limit scheme. Attached Figure Description

[0017] Figure 1This is a three-dimensional structural diagram of the present invention; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is a schematic diagram of the slow cooling mechanism in this invention; Figure 4 This is a schematic diagram of the upper part of the cooling mechanism in this invention; Figure 5 This is a schematic diagram of the lower end of the cooling mechanism in this invention; Figure 6 This is a cross-sectional structural diagram of the cooling mechanism in this invention; Figure 7 This is a schematic diagram of the internal structure of the cooling mechanism in this invention; Figure 8 This is a schematic diagram of the structure of the neutral plate in this invention; Figure 9 This is a schematic diagram of the structure of the execution component in this invention; Figure 10 This is a schematic diagram of the structure of the first balance bar in this invention.

[0018] In the diagram: 1. Bundle oiling device; 2. Cooling mechanism; 21. Main component; 211. Outer cylinder; 212. Inner cylinder; 213. Top ring plate; 214. Bottom ring plate; 215. Slide groove; 216. Air outlet; 22. Adjustment component; 221. Vertical plate; 222. Slider; 223. Sliding sleeve; 224. Cylinder; 225. First support rod; 226. Second support rod; 227. Sealing plate; 228. First balance bar; 229. Guide rod; 23. Actuation component; 231. Nozzle; 232. Second balance bar; 233. Tube seat; 234. Annular tube; 235. Tube head; 236. Movable tube; 237. Connector; 3. Slow cooling mechanism; 31. Outer shell; 32. Mounting bracket; 33. Metal cylinder; 34. Heating sleeve. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figure 1 - Figure 10 This invention provides a technical solution: a high-strength, high-elasticity polyester POY pre-oriented yarn forming system, including a bundling and oiling device 1, which is equipped with a cooling mechanism 2 for cooling the yarn bundle. The cooling mechanism 2 includes: The main component 21 includes an outer cylinder 211 disposed above the cluster oiling device 1, an inner cylinder 212 disposed inside the outer cylinder 211, a top ring plate 213 fixed between the upper end of the outer cylinder 211 and the upper end of the inner cylinder 212, a bottom ring plate 214 fixed between the lower end of the outer cylinder 211 and the lower end of the inner cylinder 212, a plurality of circumferentially arranged sliding grooves 215 are opened inside the bottom ring plate 214, and a plurality of circumferentially arranged air outlets 216 are opened inside the outer cylinder 211. The adjusting assembly 22 includes several vertical plates 221 arranged circumferentially between the inner cylinder 211 and the outer cylinder 212. The lower end of the vertical plate 221 is fixed with a slider 222 and is slidably installed inside the slide groove 215. A sliding sleeve 223 is slidably installed on the outer side of the inner cylinder 212. Cylinders 224 are installed on both sides of the top of the bottom ring plate 214 and are used to drive the sliding sleeve 223 to rise and fall. Several first support rods 225 and second support rods 226 are pivotally connected to the upper and lower ends of the outer wall of the sliding sleeve 223, respectively. A sealing plate 227 is fixed on the outer wall of the vertical plate 221. Several ventilation holes 228 are opened inside the inner cylinder 212. The execution component 23 includes a plurality of nozzles 231 arranged circumferentially inside the inner cylinder 212. The nozzles 231 are fixed with second balance rods 232 on both the upper and lower sides of their outer walls, and the other end of the second balance rods 232 is fixed to the inner wall of the upright plate 221.

[0021] In this embodiment, the cooling mechanism 2 is located above the bundled oiling device 1, and the filament bundle passes from top to bottom along the central channel of the inner cylinder 212; the cylinder 224 drives the sliding sleeve 223 to rise and fall along the outer wall of the inner cylinder 212, and the sliding sleeve 223 drives the first support rod 225 and the second support rod 226 to swing, thereby pushing the upright plate 221 to move radially along the slide groove 215 through the slider 222; when the upright plate 221 moves radially inward, the sealing plate 227 disengages from the air outlet 216, and the airflow blown out by the nozzle 231 passes through the filament bundle and is discharged to the outside of the outer cylinder 211 through the ventilation hole 228 and the air outlet 216. At the same time, the upright plate 221 drives the nozzle 231 to move radially inward synchronously through the second balance rod 232, changing the distance between the nozzle 231 and the filament bundle; when not in use... The upright plate 221 moves radially outward, and the sealing plate 227 is embedded in the air outlet 216 to seal it. Multiple nozzles 231 blow air from multiple directions to the filament bundle, and all of them can be radially adjusted to make the airflow thrust on the filament bundle balanced in all directions of the circumference. The filament bundle automatically stays in the center of the inner cylinder 212, reducing the offset of the filament bundle. At the same time, the distance between the nozzles 231 and the filament bundle is adjustable, so that the speed of the airflow when it reaches the surface of the filament bundle can be changed according to the process requirements. The sealing plate 227 moves radially with the upright plate 221. When the nozzles 231 are working, it is disengaged from the air outlet 216, and the airflow is discharged through the ventilation hole 228 and the air outlet 216. When the nozzles 231 are not in use, it is embedded in the air outlet 216 to seal it, preventing external dust from entering the cavity between the outer cylinder 211 and the inner cylinder 212.

[0022] Specifically, the adjustment assembly 22 also includes guide rods 229 disposed on the upper and lower sides of the nozzle 231, and a first balance rod 228 is fixed on the guide rods 229 and fixedly connected to the inner wall of the vertical plate 221.

[0023] In this embodiment, the guide rod 229 is fixed to the upright plate 221 by the first balance rod 228. When the upright plate 221 moves radially, the guide rod 229 moves radially synchronously with the nozzle 231. When the wire bundle is deflected by the airflow thrust, the guide rod 229 blocks the wire bundle radially, limiting the deflection range of the wire bundle. Since the guide rod 229 moves synchronously with the nozzle 231, the limiting boundary changes after the blowing distance is adjusted, and it is not necessary to adjust the position of the guide rod 229 separately.

[0024] Specifically, the execution component 23 also includes an annular tube 234 fixed to the outside of the outer cylinder 211 by a tube seat 233. The inner circle of the annular tube 234 is connected and fixed with a number of circumferentially arranged tube heads 235. A movable tube 236 is slidably installed through the tube head 235, and the other end of the movable tube 236 is connected and fixed to the nozzle 231.

[0025] Specifically, the execution component 23 also includes a connector 237 that is fixed to the outer end of the annular pipe 234 for connecting to an external gas supply device.

[0026] In this embodiment, the external air supply device supplies air to the annular pipe 234 through the connector 237. The airflow is distributed to each pipe head 235 through the annular pipe 234, and then enters each nozzle 231 through the movable pipe 236. The nozzle 231 is a slit-type air outlet with a vertical slit-shaped air outlet, and the blown airflow is in the form of a sheet. When the nozzle 231 moves radially, the movable pipe 236 slides and extends within the pipe head 235 to maintain the connection of the air supply pipeline, so that the nozzle 231 can obtain air supply at different radial positions.

[0027] Specifically, the shape and size of the sealing plate 227 are adapted to the air outlet 216, and the sealing plate 227 is made of rubber.

[0028] In this embodiment, the sealing plate 227 moves radially with the upright plate 221. When the upright plate 221 is moved outward to the maximum position, the sealing plate 227 is embedded in the air outlet 216. The rubber sealing plate 227 and the inner wall of the air outlet 216 form an interference fit, which seals the airflow channel of the air outlet 216, preventing external dust and debris from entering the cavity between the outer cylinder 211 and the inner cylinder 212, and at the same time reducing the contamination of the nozzle 231 and the guide rod 229 by the external airflow when the equipment is not in use.

[0029] Specifically, adjacent guide rods 229 are staggered vertically, and each guide rod 229 encloses a polygonal wire bundle channel.

[0030] In this embodiment, adjacent guide rods 229 are not on the same horizontal plane in the height direction. The staggered arrangement allows the inner ends of adjacent guide rods 229 to cross each other in the radial direction without interference. The diameter of the inscribed circle of the polygonal wire bundle channel formed by the inner ends of each guide rod 229 is smaller than the diameter of the smallest circle that the inner ends of the guide rods 229 can enclose when arranged in a single layer.

[0031] Specifically, the first balance bar 228 and the second balance bar 232 both penetrate the inner cylinder 212 in the horizontal direction and slide with it; the movable tube 236 penetrates the inner cylinder 212 and the vertical plate 221 in the horizontal direction and slides with them.

[0032] In this embodiment, the first balance bar 228 and the second balance bar 232 both penetrate the inner cylinder 212 and slide with it. When the vertical plate 221 moves radially, the two slide in the through hole of the inner cylinder 212, respectively driving the guide bar 229 and the nozzle 231 to move radially synchronously, and providing support on the upper and lower sides of the nozzle 231. The movable tube 236 passes through the inner cylinder 212 and the vertical plate 221 in sequence and slides with it. When the nozzle 231 moves radially, the movable tube 236 slides in the through hole, playing an auxiliary guiding role while supplying air.

[0033] Specifically, the first support rod 225 and the second support rod 226 are of equal length and parallel to each other, and the outer ends of the first support rod 225 and the second support rod 226 are pivotally connected to the inner wall of the vertical plate 221.

[0034] In this embodiment, the first support rod 225 and the second support rod 226 are of equal length and parallel to each other. Together with the sliding sleeve 223 and the upright plate 221, they form a parallelogram mechanism. When the sliding sleeve 223 is raised and lowered, the upright plate 221 remains parallel to the axis of the inner cylinder 212 during the radial movement. The sealing plate 227 and the nozzle 231 maintain their postures unchanged when the upright plate 221 moves.

[0035] Specifically, the cooling mechanism 2 is provided with a slow cooling mechanism 3, which includes a housing 31 fixed to the upper end of the nozzle 231. Inside the housing 31, a metal cylinder 33 is fixed by a mounting bracket 32. Several vertically arranged electric heating sleeves 34 are installed on the outer wall of the metal cylinder 33.

[0036] In this embodiment, after the filament is extruded from the spinneret, it moves from top to bottom under the traction of the winder. It first enters the interior of the metal cylinder 33. After being energized, the metal cylinder 33 is heated. The metal cylinder 33 radiates heat to the filament passing inside, and the filament is kept warm and cooled slowly inside the metal cylinder 33. Then the filament continues to enter the central channel of the inner cylinder 212 of the cooling mechanism 2. The nozzle 231 blows air from multiple directions to cool the filament. After cooling, the filament enters the bundling and oiling device 1 for oiling, and is finally wound by the winder.

[0037] This invention also discloses a precise control method for the pre-oriented yarn forming of high-strength, high-elasticity polyester POY, comprising the following steps: S1, cylinder 224 drives sliding sleeve 223 to rise and fall along the outer wall of inner cylinder 212. Sliding sleeve 223 drives all vertical plates 221 to move radially synchronously along sliding groove 215 through first support rod 225 and second support rod 226. Vertical plates 221 drive sealing plate 227 to disengage from air outlet 216. At the same time, through second balance rod 232 and first balance rod 228 respectively, nozzle 231 and guide wire rod 229 are driven to move radially synchronously to target position, completing the synchronous setting of blowing distance and limit boundary; S2, the external air supply device supplies air to the annular pipe 234 through the connector 237. The airflow is distributed to each nozzle 231 through the pipe head 235 and the movable pipe 236. The nozzle 231 blows sheet-like airflow from multiple directions around the circumference to the filament bundle. Under the thrust of the airflow in each direction, the filament bundle automatically stays in the center of the inner cylinder 212. The airflow blowing through the filament bundle is discharged through the ventilation hole 228 and the air outlet 216. S3, the filament bundle is cooled by the cooling mechanism 2 from top to bottom and then enters the bundle oiling device 1 for oiling. When the filament bundle deviates, it is radially blocked and limited by the guide rod 229. When the equipment is stopped, the cylinder 224 drives the vertical plate 221 to move outward until the sealing plate 227 is embedded in the air outlet 216.

[0038] The working principle and usage process of this invention are as follows: First, after the filament is extruded from the spinneret, it moves from top to bottom under the traction of the winding device and enters the interior of the metal cylinder 33. After being energized, the metal cylinder 33 is heated, and the metal cylinder 33 radiates heat to the filament passing inside, so that the filament is kept warm and cooled slowly inside the metal cylinder 33. Then the filament continues to enter the central channel of the inner cylinder 212 of the cooling mechanism 2. An external air supply device supplies air to the annular pipe 234 via connector 237. The airflow is distributed to each pipe head 235 via the annular pipe 234, and then enters each nozzle 231 via the movable pipe 236. The nozzle 231 is a slit-type air outlet with a vertical slit-shaped air outlet, and the blown airflow is sheet-like, blowing air onto the filament bundle from multiple directions. The cylinder 224 drives the sliding sleeve 223 to rise and fall along the outer wall of the inner cylinder 212. The sliding sleeve 223 drives the first support rod 225 and the second support rod 226 to swing, pushing the vertical plate 221 through the slider 222. Moving radially along the slide 215, the upright plate 221 drives the nozzle 231 to move radially inward synchronously via the second balance bar 232, changing the distance between the nozzle 231 and the filament bundle; the first support rod 225 and the second support rod 226 are of equal length and parallel to each other, and together with the slide sleeve 223 and the upright plate 221, they form a parallelogram mechanism. When the slide sleeve 223 rises and falls, the upright plate 221 always remains parallel to the axis of the inner cylinder 212 during the radial movement, and the sealing plate 227 and the nozzle 231 maintain the same posture as the upright plate 221 moves. Multiple nozzles 231 blow air onto the filament bundle from multiple directions, and all of them can be radially adjusted. The airflow thrust on the filament bundle is balanced in all directions around the circumference, and the filament bundle automatically stays in the center of the inner cylinder 212. The airflow blown out by the nozzles 231 passes through the filament bundle and is discharged to the outside of the outer cylinder 211 through the ventilation hole 228 and the air outlet 216. When the upright plate 221 moves radially inward, the sealing plate 227 disengages from the air outlet 216, and the airflow is discharged through the ventilation hole 228 and the air outlet 216. The guide rod 229 is fixed to the vertical plate 221 by the first balance bar 228. When the vertical plate 221 moves radially, the guide rod 229 moves radially synchronously with the nozzle 231. After the blowing distance is adjusted, the limiting boundary changes accordingly. Adjacent guide rods 229 are not on the same horizontal plane in the height direction. The staggered arrangement allows the inner ends of adjacent guide rods 229 to cross each other in the radial direction without interference. The inner ends of each guide rod 229 enclose a polygonal filament channel. When the filament is deflected by the airflow thrust, the guide rod 229 blocks the filament from the radial direction, limiting the deflection range of the filament. After cooling, the filaments are fed downward into the bundling and oiling device 1 for oiling, and finally wound by the winder. When not in use, the upright plate 221 moves radially outward, and the sealing plate 227 is embedded in the air outlet 216 to seal it, preventing external dust from entering the cavity between the outer cylinder 211 and the inner cylinder 212.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-strength, high-elasticity polyester POY pre-oriented yarn forming system, comprising a bundling and oiling device (1), characterized in that: The bundled oiling device (1) is equipped with a cooling mechanism (2) for cooling the filament bundle. The cooling mechanism (2) includes: The main component (21) includes an outer cylinder (211) disposed above the bundle oiling device (1), an inner cylinder (212) disposed inside the outer cylinder (211), a top ring plate (213) fixed between the upper end of the outer cylinder (211) and the upper end of the inner cylinder (212), a bottom ring plate (214) fixed between the lower end of the outer cylinder (211) and the lower end of the inner cylinder (212), a number of circumferentially arranged sliding grooves (215) are opened inside the bottom ring plate (214), and a number of circumferentially arranged air outlets (216) are opened inside the outer cylinder (211). The adjustment assembly (22) includes several vertical plates (221) arranged circumferentially between the inside of the outer cylinder (211) and the outside of the inner cylinder (212). The lower end of the vertical plate (221) is fixed with a slider (222) and is slidably installed inside the slide groove (215). A sliding sleeve (223) is slidably installed on the outside of the inner cylinder (212). Cylinders (224) are installed on both sides of the top of the bottom ring plate (214) and are used to drive the sliding sleeve (223) to rise and fall. The upper and lower ends of the outer wall of the sliding sleeve (223) are respectively pivotally connected to several first support rods (225) and second support rods (226) arranged circumferentially. A sealing plate (227) is fixed on the outer wall of the vertical plate (221). Several ventilation holes (228) are opened inside the inner cylinder (212). The execution component (23) includes a number of nozzles (231) arranged circumferentially inside the inner cylinder (212). The nozzles (231) are fixed with second balance rods (232) on both the upper and lower sides of their outer walls, and the other end of the second balance rods (232) is fixed to the inner wall of the upright plate (221).

2. The high-strength, high-elasticity polyester POY pre-oriented yarn forming system according to claim 1, characterized in that: The adjustment assembly (22) also includes guide rods (229) disposed on the upper and lower sides of the nozzle (231), with a first balance rod (228) fixed on the guide rods (229) and fixedly connected to the inner wall of the upright plate (221).

3. The high-strength, high-elasticity polyester POY pre-oriented yarn forming system according to claim 2, characterized in that: The execution component (23) also includes an annular tube (234) fixed outside the outer cylinder (211) by a tube seat (233). The inner ring of the annular tube (234) is connected and fixed with a number of tube heads (235) arranged in a circle. A movable tube (236) is slidably installed inside the tube head (235), and the other end of the movable tube (236) is connected and fixed to the nozzle (231).

4. The high-strength, high-elasticity polyester POY pre-oriented yarn forming system according to claim 3, characterized in that: The execution component (23) also includes a connector (237) that is fixed to the outer end of the annular pipe (234) for connecting to an external gas supply device.

5. The high-strength, high-elasticity polyester POY pre-oriented yarn forming system according to claim 1, characterized in that: The shape and size of the sealing plate (227) are adapted to the air outlet (216), and the sealing plate (227) is made of rubber.

6. The high-strength, high-elasticity polyester POY pre-oriented yarn forming system according to claim 2, characterized in that: The adjacent guide rods (229) are staggered vertically, and each guide rod (229) encloses a polygonal wire bundle channel.

7. The high-strength, high-elasticity polyester POY pre-oriented yarn forming system according to claim 3, characterized in that: The first balance bar (228) and the second balance bar (232) both penetrate the inner cylinder (212) in the horizontal direction and slide with it; the movable tube (236) penetrates the inner cylinder (212) and the vertical plate (221) in the horizontal direction and slides with it.

8. The high-strength, high-elasticity polyester POY pre-oriented yarn forming system according to claim 1, characterized in that: The first support rod (225) and the second support rod (226) are of equal length and parallel to each other. The outer ends of the first support rod (225) and the second support rod (226) are both pivotally connected to the inner wall of the upright plate (221).

9. The high-strength, high-elasticity polyester POY pre-oriented yarn forming system according to claim 1, characterized in that: The cooling mechanism (2) is provided with a slow cooling mechanism (3), including a housing (31) fixed at the upper end of the nozzle (231), a metal cylinder (33) fixed inside the housing (31) by a mounting bracket (32), and a number of vertically arranged electric heating sleeves (34) installed on the outer wall of the metal cylinder (33).

10. A precise control method for the pre-oriented yarn forming of high-strength, high-elasticity polyester POY, characterized in that, The high-strength, high-elasticity polyester POY pre-oriented yarn forming system according to any one of claims 1-9 includes the following steps: S1, the cylinder (224) drives the sliding sleeve (223) to rise and fall along the outer wall of the inner cylinder (212). The sliding sleeve (223) drives all the upright plates (221) to move radially synchronously along the slide groove (215) through the first support rod (225) and the second support rod (226). The upright plates (221) drive the sealing plate (227) to disengage from the air outlet (216). At the same time, the second balance rod (232) and the first balance rod (228) drive the nozzle (231) and the guide rod (229) to move radially synchronously to the target position, thus completing the synchronous setting of the blowing distance and the limit boundary. S2, the external air supply device supplies air to the annular pipe (234) through the connector (237), and the airflow is distributed to each nozzle (231) through the pipe head (235) and the movable pipe (236). The nozzle (231) blows sheet-like airflow from multiple directions around the circumference to the filament bundle. Under the thrust of the airflow in each direction, the filament bundle automatically resides in the center of the inner cylinder (212). The airflow blowing through the filament bundle is discharged through the ventilation hole (228) and the air outlet (216). S3, the filament bundle is cooled by the cooling mechanism (2) from top to bottom and then enters the bundle oiling device (1) for oiling. When the filament bundle deviates, it is radially blocked and limited by the guide rod (229). When the equipment is stopped, the cylinder (224) drives the vertical plate (221) to move outward to the sealing plate (227) embedded in the air outlet (216).

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