CN218812286U

CN218812286U - Flat porous semi-dull pre-oriented yarn production equipment

Info

Publication number: CN218812286U
Application number: CN202221632089.XU
Authority: CN
Inventors: 屈汉巨; 沈夏霖; 沈渭建
Original assignee: Zhejiang Hengyou Chemical Fiber Co Ltd
Current assignee: Zhejiang Hengyou Chemical Fiber Co Ltd
Priority date: 2022-06-27
Filing date: 2022-06-27
Publication date: 2023-04-07
Anticipated expiration: 2032-06-27

Abstract

The utility model provides a flat porous semi-dull pre-oriented yarn production facility relates to polyester spinning technical field. The flat porous semi-dull pre-oriented yarn production equipment comprises a polymerization reaction unit and a spinning unit which are sequentially arranged. The utility model discloses a three first surge tanks of group carry out stabilizing pressure to the cooling air that air condition fan supplied, detect and adjust in real time by first solenoid valve through first pressure sensor, make the air feed very stable, pass through second surge tank again, the leading-in ring blast air cooling of trachea and ware, and adjust through second pressure sensor and second solenoid valve real-time detection, the pressure fluctuation of eliminating as far as possible, through reducing the oil feeder glib talker hole size, thereby the silk bundle that can significantly reduce causes the silk bundle shake to cause because of the wild wind interference jumps out the fuel sprayer, the broken silk, the emergence of the condition such as unusual products such as quick-witted wool silk fall.

Description

Flat porous semi-dull pre-oriented yarn production equipment

Technical Field

The utility model relates to a polyester spinning technical field specifically is flat porous half extinction pre-oriented yarn production facility.

Background

Terylene (pet fiber) is a commodity name of polyester fiber in China and is an important variety in synthetic fiber. Because of its excellent physical and chemical properties, it is widely used in the fields of clothing material, home textile and other non-clothing. Since the advent, the polyester product also used the main textile raw material of hanging well, high strength, stiffness and smoothness, and not easy to wrinkle to weave various textiles, and the later-path fabric of the newly developed flat porous semi-dull pre-oriented yarn has the advantages of elegant gloss, fluffiness, good air permeability and the like, and is more concerned by people.

When flat porous semi-dull pre-oriented yarn is produced in the market at present, although the circular blowing cooling device used in the spinning process of conventional varieties is used for cooling, the problem of poor cooling effect still exists, the variation coefficient of elongation at break of the produced yarn bundle is high, the variation coefficient of thermal stress is high, the main reason is that the circumferential air inlet of the circular blowing cooler in the same period is uneven, so that the air blowing is uneven, and during continuous production, the air supply pressure of an air conditioner fan fluctuates, in addition, the existing production equipment for producing the flat porous semi-dull pre-oriented yarn is self-centered, the size of an oil nozzle of an oil applicator is large, and the yarn bundle is easy to jump out of an oil nozzle, yarn breakage, machine broken yarn and other abnormalities caused by yarn bundle shaking due to wild wind interference.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The not enough to prior art, the utility model provides a flat porous half extinction pre-oriented yarn production facility has solved the not good problem of cooling effect when producing flat porous half extinction pre-oriented yarn on the existing market to and the oil feeder glib talker size is great, thereby appears easily causing the silk bundle that the silk bundle shake causes to jump out unusual problems such as fuel sprayer, broken silk, quick-witted hair because of the wild wind interference.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

the production equipment of the flat porous semi-dull pre-oriented yarn comprises a polymerization reaction unit and a spinning unit which are arranged in sequence; the polymerization reaction unit comprises an esterification reaction kettle, a pre-polycondensation heater, a pre-polycondensation reaction kettle and a final polycondensation reaction kettle which are arranged from top to bottom in sequence; the spinning unit comprises a spinning box, a spinneret plate, a ring blowing cooler, an oil feeder, a pre-networking device, a first yarn guide disc, a second yarn guide disc and a winding device, wherein the spinning box, the spinneret plate, the ring blowing cooler, the oil feeder, the pre-networking device, the first yarn guide disc, the second yarn guide disc and the winding device are sequentially arranged from top to bottom, the air conditioner fan is used for supplying cooling air to the ring blowing cooler, the front wall of the air conditioner fan is fixedly connected with a microcomputer controller, and the size of an oil nozzle hole in the oil feeder is 0.5mm x 1.0mm; a plurality of groups of spinneret orifices which are arranged on the inner wall of the spinneret plate and are communicated up and down; a melt discharge pump arranged at the outlet end of the final polycondensation reaction kettle and used for discharging melt, wherein one end of the melt discharge pump, which is far away from the final polycondensation reaction kettle, is fixedly connected with a melt filter, and a static mixer and a booster pump are fixedly connected between the melt filter and the spinning box end from left to right in sequence; the circular blowing cooler consists of an outer shell and an inner shell arranged inside the outer shell, the upper end and the lower end of the outer shell and the lower end of the inner shell are fixedly connected through sealing covers, an air-homogenizing structure for uniformly distributing cooling air is arranged between the outer shell and the inner shell, and a plurality of groups of vent holes distributed at equal intervals are arranged on the inner wall of the inner shell; the three-layer joint structure is fixedly connected to the outer wall of the shell sequentially from top to bottom, each three-layer joint structure is composed of a plurality of groups of quick connection-pegs, the plurality of groups of quick connection-pegs are circumferentially distributed in equal intervals by taking the axial lead of the shell as the circle center, and a pressure stabilizing assembly for stabilizing the air pressure of cooling air is arranged between each group of quick connection-pegs and the air conditioner fan; the pressure detection assembly is arranged on the pressure stabilizing assembly and is used for detecting the internal pressure condition; the adjusting structure is arranged on the pressure stabilizing assembly and used for adjusting the flow of the output cooling air.

Preferably, even wind structure includes first wind net, second wind net, just be located and be provided with the cavity between two sets of closing caps between shell and the inner shell, first wind net, second wind net set up at the cavity inside wall from outside to inside in proper order, first wind net is thousand meshes filter screen with second wind net.

Preferably, the pressure stabilizing assembly comprises a gas splitter, three first pressure stabilizing boxes and three second pressure stabilizing boxes, the gas splitter is fixedly connected to the outlet end of the air conditioner fan, the gas splitter is provided with three sets of inlets, the inlet ends of the three first pressure stabilizing boxes are fixedly connected with the three sets of outlets of the gas splitter respectively, the inlet ends of the three second pressure stabilizing boxes are fixedly connected to the outlet ends of the three first pressure stabilizing boxes respectively, and the outlet ends of the three second pressure stabilizing boxes are fixedly connected with the three-layer joint structure through a plurality of sets of air pipes respectively.

Preferably, the lengths of a plurality of groups of the air pipes are consistent.

Preferably, the pressure detection assembly comprises three groups of first pressure sensors and three groups of second pressure sensors, the three groups of first pressure sensors are respectively and fixedly connected to the upper walls of the three groups of first pressure stabilizing boxes, and the three groups of second pressure sensors are respectively and fixedly connected to the upper walls of the three groups of second pressure stabilizing boxes.

Preferably, the adjusting structure comprises three groups of first electromagnetic valves and three groups of second electromagnetic valves, wherein the three groups of first electromagnetic valves are all fixedly connected to the outer wall of the gas splitter and respectively control the flow of three groups of outlets of the gas splitter, and the three groups of second electromagnetic valves are respectively and fixedly connected between three groups of first pressure stabilizing boxes and three groups of second pressure stabilizing boxes.

Preferably, the plurality of groups of spinneret orifices are arranged into five circles by taking the center of the spinneret plate as the circle center, and the spinneret orifices in the five circles are uniformly distributed in a circumferential equal distribution by taking the center of the spinneret plate as the circle center.

(III) advantageous effects

The utility model provides a flat porous semi-dull pre-oriented yarn production facility. The method has the following beneficial effects:

1. compared with the prior art, the flat porous semi-dull pre-oriented yarn production equipment has the advantages that pressure stabilization is carried out on cooling air supplied by an air conditioner fan through the three groups of first pressure stabilizing boxes, the air supply is very stable through detection of the first pressure sensor and real-time adjustment of the first electromagnetic valve, then the air supply passes through the second pressure stabilizing box and the air pipe is led into the circular blowing air cooler, real-time detection and adjustment of the second pressure sensor and the second electromagnetic valve are carried out, pressure fluctuation is eliminated as much as possible, pressure change caused by instability of the air conditioner fan is reduced, the cooling effects of produced filament bundles from head to tail are the same, meanwhile, the lengths of the air pipes are all set to be the same, the cooling air entering the circular blowing air cooler from the second pressure stabilizing box is made to have the same length, and therefore the circumferential air speeds of the circular blowing air cooler in the same time period are guaranteed to be consistent.

2. Compared with the prior art, the flat porous semi-dull pre-oriented yarn production equipment can greatly reduce the occurrence of abnormal product drop and the like of the tows jumping out of an oil nozzle, broken yarns, machine broken yarns and the like caused by the dithering of the tows due to the interference of the wild wind by reducing the size of the oil nozzle hole of the oiling device to 0.5 x 1.0mm; secondly small-bore oil nozzle can make the silk bundle cohesion better under the prerequisite that does not improve finish pump rotational speed, and the silk bundle oils more evenly, and the rerum natura index evenness CV value is littleer, and the washing size change rate is little after the surface fabric is made to the elastic yarn, and it is good to color back surface fabric color stability, reduces finish consumption simultaneously.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a partial schematic view of the connection structure of the voltage stabilizing assembly of the present invention;

FIG. 3 is a partial structural plan view of the circular air cooler of the present invention;

FIG. 4 is a sectional view showing a partial structure of the circular air cooler of the present invention;

FIG. 5 is a bottom view of the spinneret plate structure of the present invention;

fig. 6 is a partially enlarged view of a portion a of fig. 5 according to the present invention.

Wherein, 1, an esterification reaction kettle; 2. a pre-polycondensation heater; 3. a pre-polycondensation reaction kettle; 4. a final polycondensation reaction kettle; 5. a melt discharge pump; 6. a melt filter; 7. a static mixer; 8. a booster pump; 9. a spinning box; 10. a spinneret plate; 11. a housing; 12. a quick connector; 13. an air tube; 14. an air-conditioning fan; 15. a gas splitter; 16. a first surge tank; 17. a second surge tank; 18. an oil feeder; 19. a pre-network device; 20. a first godet; 21. a second godet; 22. a winding device; 23. a first pressure sensor; 24. a second pressure sensor; 25. a first solenoid valve; 26. a second solenoid valve; 27. sealing the cover; 28. an inner shell; 29. a first wind network; 30. a second wind network; 31. a spinneret orifice; 32. a microcomputer controller.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Example (b):

as shown in fig. 1 to 6, an embodiment of the present invention provides a flat porous semi-dull pre-oriented yarn production apparatus, which includes a polymerization reaction unit and a spinning unit arranged in sequence; the polymerization reaction unit comprises an esterification reaction kettle 1, a pre-polycondensation heater 2, a pre-polycondensation reaction kettle 3 and a final polycondensation reaction kettle 4 which are arranged from top to bottom in sequence;

the spinning unit comprises a spinning box 9, a spinneret plate 10, a circular blowing cooler, an oiling device 18, a pre-networking device 19, a first godet 20, a second godet 21 and a winding device 22 which are sequentially arranged from top to bottom, the second godet 21 and the winding device 22 are arranged on the right side of the first godet 20, the spinning unit further comprises an air-conditioning fan 14 used for supplying cooling air to the circular blowing cooler, the front wall of the air-conditioning fan 14 is fixedly connected with a microcomputer controller 32, and the size of an oil nozzle in the oiling device 18 is 0.5mm to 1.0mm;

the filament bundle cooling device is characterized in that a plurality of groups of filament holes 31 which are vertically communicated are arranged on the inner wall of the spinneret plate 10, the plurality of groups of filament holes 31 are arranged into five circles by taking the center of the spinneret plate 10 as the circle center, the filament holes 31 in the five circles are uniformly distributed in a circumferential manner by taking the center of the spinneret plate 10 as the circle center, and the filament bundle cooling effect is better due to the fact that the plurality of groups of filament holes 31 are five circles and are outwards diverged, and cooling air can enter the central area of the filament bundle.

A melt discharge pump 5 arranged at the outlet end of the final polycondensation reaction kettle 4 and used for discharging melt, wherein one end of the melt discharge pump 5, which is far away from the final polycondensation reaction kettle 4, is fixedly connected with a melt filter 6, and a static mixer 7 and a booster pump 8 are sequentially and fixedly connected between the melt filter 6 and the end of a spinning box 9 from left to right;

the circular blowing cooler comprises an outer shell 11 and an inner shell 28 arranged inside the outer shell 11, the upper end and the lower end of the outer shell 11 and the lower end of the inner shell 28 are fixedly connected through a sealing cover 27, an air homogenizing structure for uniformly distributing cooling air is arranged between the outer shell 11 and the inner shell 28, a plurality of groups of vent holes are arranged on the inner wall of the inner shell 28 and distributed at equal intervals, the air homogenizing structure comprises a first air net 29 and a second air net 30, a cavity is arranged between the outer shell 11 and the inner shell 28 and between the two groups of sealing covers 27, the first air net 29 and the second air net 30 are sequentially arranged on the inner side wall of the cavity from outside to inside, the first air net 29 and the second air net 30 are thousand-mesh filter screens, and two layers of thousand-mesh filter screens are arranged between the outer shell 11 and the inner shell 28, so that a part of 'return air' is formed inside the air duct to enhance the cooling effect of central tows;

the three-layer joint structure is fixedly connected to the outer wall of the shell 11 in sequence from top to bottom, the three-layer joint structure is composed of a plurality of groups of quick-connection-pegs 12, the plurality of groups of quick-connection-pegs 12 are distributed in a circumferential equal division manner by taking the axial lead of the shell 11 as the circle center, a pressure stabilizing assembly for stabilizing the air pressure of cooling air is arranged between the plurality of groups of quick-connection-pegs 12 and the air conditioner fan 14, the pressure stabilizing assembly comprises an air splitter 15 and three groups of first pressure stabilizing boxes 16 and a second pressure stabilizing box 17, the air splitter 15 is fixedly connected to the outlet end of the air conditioner fan 14, a group of inlets and three groups of outlets are arranged on the air splitter 15, the inlets of the three groups of first pressure stabilizing boxes 16 are respectively and fixedly connected with the three groups of outlets of the air splitter 15, the inlet ends of three groups of second pressure stabilizing boxes 17 are respectively fixedly connected with the outlet ends of three groups of first pressure stabilizing boxes 16, the outlet ends of the three groups of second pressure stabilizing boxes 17 are respectively and fixedly connected with a three-layer joint structure through a plurality of groups of air pipes 13, the lengths of the plurality of groups of air pipes 13 are uniform, so that the air speeds of circumferential air inlet of the circular air-blowing cooler are uniform, and the pressure detection assembly is arranged on the pressure stabilizing assembly and used for detecting the internal pressure condition and comprises three groups of first pressure sensors 23 and second pressure sensors 24, the three groups of first pressure sensors 23 are respectively and fixedly connected to the upper walls of the three groups of first pressure stabilizing boxes 16, and the three groups of second pressure sensors 24 are respectively and fixedly connected to the upper walls of the three groups of second pressure stabilizing boxes 17; the adjusting structure is arranged on the pressure stabilizing assembly and used for adjusting the flow of output cooling air, the adjusting structure comprises three groups of first electromagnetic valves 25 and second electromagnetic valves 26, the three groups of first electromagnetic valves 25 are fixedly connected to the outer wall of the gas splitter 15 and respectively control the flow of three groups of outlets of the gas splitter 15, the three groups of second electromagnetic valves 26 are respectively and fixedly connected between the three groups of first pressure stabilizing boxes 16 and the three groups of second pressure stabilizing boxes 17, and the cooling air pressure supplied by the air conditioning fan 14 is stabilized through the three groups of first pressure stabilizing boxes 16 and the second pressure stabilizing boxes 17, so that the cold shortage effect in the tow production process is kept consistent.

The production process of the flat porous semi-dull pre-oriented yarn comprises the following steps;

s1, esterifying, pre-polycondensing and finally polycondensing raw materials in a polymerization reaction unit to form a melt, wherein the viscosity of the melt is 0.624 dl/g, sending out the melt by a melt discharge pump 5, filtering impurities by a melt filter 6, fully mixing by a static mixer 7, pressurizing by a booster pump 8, and sending into a spinning box 9, wherein the temperature of a melt conveying pipeline is 286 ℃;

s2, the melt is sprayed out through a spinneret orifice 31 in a spinneret plate 10 through metering distribution in a spinning box 9 to form primary yarns, the temperature in the spinning box 9 is 290 ℃, cooling air generated by an air conditioning fan 14 is distributed into a pressure stabilizing component through an air splitter 15 to stabilize the pressure, and then the cooling air is guided into a circular blowing cooler through an air pipe 13 to perform blowing cooling on the primary yarns, the temperature of the circular blowing air is 21 ℃, and the pressure of the circular blowing air is 25Pa;

and S3, oiling the cooled tows by an oiling device 18, then carrying out networking by a pre-networking device 19, wherein the networking pressure of the pre-networking device 19 is 0.06Pa, finally carrying out collection and coiling by a coiling device 22 after passing through a first yarn guide disc 20 and a second yarn guide disc 21, and wherein the spinning speed is 2920m/min.

The voltage stabilizing mode of the voltage stabilizing component is as follows: the three groups of first pressure stabilizing boxes 16 respectively detect the pressure in the three groups of first pressure stabilizing boxes 23 through the three groups of first pressure sensors 23 and transmit the pressure back to the microcomputer controller 32, the three groups of first electromagnetic valves 25 respectively control the flow of three groups of outlets of the gas splitter 15 to keep the pressure in the three groups of first pressure stabilizing boxes 16 consistent, after the pressure in the three groups of first pressure stabilizing boxes 16 reaches a set pressure value, the microcomputer controller 32 controls the three groups of second electromagnetic valves 26 to be synchronously opened, cooling air is sent to the second pressure stabilizing boxes 17, is transited by the second pressure stabilizing boxes 17 and then is sent to the circular air blowing cooler through the plurality of air pipes 13 to be uniformly blown to the nascent filaments, and the three groups of second pressure sensors 24 are used for detecting the pressure in the three groups of second pressure stabilizing boxes 17.

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

Claims

1. Production equipment of flat porous semi-dull pre-oriented yarn is characterized in that: comprises a polymerization reaction unit and a spinning unit which are arranged in sequence;

the polymerization reaction unit comprises an esterification reaction kettle (1), a pre-polycondensation heater (2), a pre-polycondensation reaction kettle (3) and a final polycondensation reaction kettle (4) which are arranged from top to bottom in sequence;

the spinning unit comprises a spinning box (9), a spinneret plate (10), a circular blowing cooler, an oiling device (18), a pre-networking device (19), a first godet (20), a second godet (21) and a winding device (22), wherein the spinning box, the spinneret plate (10), the circular blowing cooler, the oiling device (18), the pre-networking device (19), the first godet (20), the second godet (21) and the winding device (22) are sequentially arranged from top to bottom, the spinning unit further comprises an air-conditioning fan (14) used for supplying cooling air to the circular blowing cooler, a microcomputer controller (32) is fixedly connected to the front wall of the air-conditioning fan (14), and the size of an oil nozzle in the oiling device (18) is 0.5mm to 1.0mm;

a plurality of groups of spinneret orifices (31) which are arranged on the inner wall of the spinneret plate (10) and run through up and down;

a melt discharge pump (5) arranged at the outlet end of the final polycondensation reaction kettle (4) and used for discharging melt, wherein a melt filter (6) is fixedly connected to one end, far away from the final polycondensation reaction kettle (4), of the melt discharge pump (5), and a static mixer (7) and a booster pump (8) are fixedly connected between the melt filter (6) and the spinning box (9) from left to right in sequence;

the circular blowing cooler is composed of an outer shell (11) and an inner shell (28) arranged inside the outer shell (11), the upper end and the lower end of the outer shell (11) and the lower end of the inner shell (28) are fixedly connected through a sealing cover (27), an air-homogenizing structure for uniformly distributing cooling air is arranged between the outer shell (11) and the inner shell (28), and a plurality of groups of vent holes distributed at equal intervals are formed in the inner wall of the inner shell (28);

the three-layer joint structure is fixedly connected to the outer wall of the shell (11) in sequence from top to bottom, the three-layer joint structure is composed of a plurality of groups of quick connectors (12), the groups of quick connectors (12) are distributed in a circle in an equally-divided manner by taking the axial lead of the shell (11) as the circle center, and a pressure stabilizing assembly for stabilizing the air pressure of cooling air is arranged between the groups of quick connectors (12) and the air conditioner fan (14);

the pressure detection component is arranged on the pressure stabilizing component and is used for detecting the internal pressure condition;

the adjusting structure is arranged on the pressure stabilizing assembly and used for adjusting the flow of the output cooling air;

the pressure stabilizing assembly comprises a gas flow divider (15) and three groups of first pressure stabilizing boxes (16) and second pressure stabilizing boxes (17), wherein the gas flow divider (15) is fixedly connected to the outlet end of the air conditioner fan (14), the gas flow divider (15) is provided with a group of three groups of inlet outlets and three groups of inlet outlets, the inlet end of the first pressure stabilizing box (16) is fixedly connected with the three groups of outlet outlets of the gas flow divider (15), the inlet end of the second pressure stabilizing box (17) is fixedly connected to the outlet ends of the three groups of first pressure stabilizing boxes (16), and the outlet end of the second pressure stabilizing box (17) is fixedly connected with a three-layer connector through a plurality of groups of air pipes (13).

2. The flat porous semi-dull pre-oriented yarn production apparatus according to claim 1, wherein: even wind structure includes first wind net (29), second wind net (30), just be located and be provided with the cavity between two sets of closing cap (27) between shell (11) and inner shell (28), first wind net (29), second wind net (30) set up at the cavity inside wall from outside to inside in proper order, first wind net (29) and second wind net (30) are thousand meshes of filter screen.

3. The flat porous semi-dull pre-oriented yarn production apparatus according to claim 1, characterized in that: the lengths of the air pipes (13) are all consistent.

4. The flat porous semi-dull pre-oriented yarn production apparatus according to claim 1, characterized in that: the pressure detection assembly comprises three groups of first pressure sensors (23) and three groups of second pressure sensors (24), the three groups of first pressure sensors (23) are respectively and fixedly connected to the upper walls of the three groups of first pressure maintaining boxes (16), and the three groups of second pressure sensors (24) are respectively and fixedly connected to the upper walls of the three groups of second pressure maintaining boxes (17).