A nylon yarn production equipment and method for producing differential shrinkage cotton-like yarn

Abstract

The present invention relates to the technical field of polyamide yarn manufacturing, and discloses a polyamide yarn production equipment and method with different shrinkages imitating cotton, including: a mounting base fixed to the ground; two support frames fixedly installed on the upper surface of the mounting base; a control mechanism installed on the side wall of the support frame; a lubrication mechanism provided inside the two support frames; the shaped yarn is cooled and shaped by a cooling mechanism, and then passes through the lubrication mechanism and the control mechanism. The wire rod is extruded and lubricated by the winding roller and the oil roller in the lubrication mechanism, which can make the wire rod softer. And by providing two sets of replacement plates, they can be selected to work simultaneously to increase work efficiency, or the lower set works. After working for a certain period of time, the upper replacement plate and the lower one can be replaced, so that the equipment can be used for a longer time. Also, when one side fails, the other set of replacement plates can be enabled, so as not to delay the work process, increase work efficiency, and make the equipment run more stably.

Description

Technical Field

[0001] The present invention relates to the technical field of polyamide yarn manufacturing, and particularly to a polyamide yarn production equipment and method with different shrinkage and cotton-like properties. Background Technique

[0002] Polyamide filament is a kind of textile fabric, with various types such as monofilament, ply yarn, and special yarn. Compared with the luster of real silk fabric, the luster of polyamide filament fabric is relatively poor, giving a feeling of being coated with a layer of wax. At the same time, when rubbed back and forth by hand, the friction between the fabrics can be felt.

[0003] In the production and manufacturing process of polyamide filament, multiple steps need to be carried out in sequence, and the required polyamide filament is finally produced through multiple groups of technological processes. In the process of polyamide filament manufacturing, in order to make the subsequent feel soft and increase the wearing comfort effect, it is necessary to lubricate the polyamide filament. To lubricate the polyamide filament, an oiling and lubricating device is required. The existing lubricating device often lubricates the polyamide by extrusion between an oil roller and a winding roller. Since the lubrication of the polyamide filament needs to be carried out continuously during production, a single set of lubricating device is not sufficient to supply the production of the production line. Moreover, when the lubricating device needs to be maintained, the entire production line process will stop, wasting time and reducing production efficiency at the same time.

[0004] In view of the above problems, for this reason, a polyamide yarn production equipment and method with different shrinkage and cotton-like properties are proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide a polyamide yarn production equipment and method with different shrinkage and cotton-like properties, which solves the problem that the existing lubricating device in the background technology is a single set of device, can only maintain one production line, and needs to stop work during maintenance.

[0006] To achieve the above object, the present invention provides the following technical solutions: A polyamide yarn production equipment with different shrinkage and cotton-like properties, comprising: a mounting base fixed to the ground; two support frames fixedly installed on the upper surface of the mounting base; a control mechanism installed on the side wall of the support frame; a lubrication mechanism provided inside the two support frames; a cooling mechanism installed on the upper surface of the mounting base; lifting grooves are respectively opened on both sides inside the support frame, sliding grooves are opened on the upper and lower sides inside the support frame, a second motor is fixedly connected inside the lifting groove, the output shaft of the second motor is fixedly connected with a threaded rod, the outer side wall of the threaded rod is threadedly connected with a first electromagnetic block, and a telescopic mechanism is slidably connected inside the sliding groove; the control mechanism includes a replacement plate, a bearing, a first motor, a replacement rod, and a replacement groove. A first motor is fixedly connected to the side wall of the support frame, the output shaft of the first motor is fixedly connected with a replacement rod, two groups of replacement plates are provided inside the support frame, the replacement plate is detachably connected with the telescopic mechanism, replacement grooves are respectively opened on the upper surface and the lower surface of the replacement plate, the replacement groove is adapted to the replacement rod, and the replacement plate is rotatably connected with the lubrication mechanism through a bearing; the cooling mechanism includes a cooling box, a refrigerator, a blowing blade, a covering blade, a blowing hole, and a connecting plate. An air inlet is opened above the cooling box, a refrigerator is fixedly connected inside the cooling box, blowing holes are respectively opened on the opposite sides of the cooling box, covering blades are slidably connected to the opposite sides of the cooling box, a blowing blade is fixedly connected inside the blowing hole, a connecting plate is slidably connected inside the cooling box, and the connecting plate is fixedly connected with the covering blade; the telescopic mechanism includes a slider, a telescopic rod, a support rod, and a second electromagnetic block. A slider is slidably connected inside the sliding groove, a telescopic rod is fixedly connected inside the slider, both output ends of the telescopic rod are rotatably connected with a support block, a second electromagnetic block is provided outside the slider, and a support rod is rotatably connected between the second electromagnetic block and the support block. The support block located on one side of the cooling box is fixedly connected with the connecting plate through a bent plate; the replacement rod is a double-headed hydraulic rod, the top end of the replacement rod is rotatably connected with a replacement block, and the replacement block is adapted to the replacement groove; the replacement plate is a cuboid plate with a self-contained electromagnetic adsorption device, and is electromagnetically adsorbed with the first electromagnetic block and the second electromagnetic block.

[0007] As a further description of the above technical solution: The lubrication mechanism includes a driving gear, a driven gear, a driven shaft, a first shaft rod, a second shaft rod, an oil roller and a winding roller. The outer side wall of the output shaft of the first motor is fixedly connected with the driving gear. A driven shaft is rotatably connected to one side of the replacement plate close to the first motor. The outer side wall of the driven shaft is fixedly connected with the driven gear. The driving gear and the driven gear are adapted to each other. The inner parts of the two bearings are respectively fixedly connected with the first shaft rod and the second shaft rod. A driving wheel is rotatably connected to one side of the replacement plate close to the first motor. The first gear and the second gear are respectively fixedly connected to one ends of the first shaft rod and the second shaft rod close to the first motor. A third gear is fixedly connected to one end of the driven shaft away from the driven gear. The third gear is meshed and connected with the first gear. The third gear and the second gear are meshed and connected through the driving wheel. The oil roller and the winding roller are respectively fixedly connected to one ends of the first shaft rod and the second shaft rod away from the driven gear.

[0008] As a further description of the above technical solution: A filter collection box for collecting lubricating oil is rotatably connected between two replacement plates on the same horizontal line.

[0009] As a further description of the above technical solution: A sponge for increasing the contact surface is fixedly connected to the outer side wall of the oil roller.

[0010] As a further description of the above technical solution: The sponge is in contact with the winding roller, and the surface of the winding roller is made of a frosted material for increasing friction.

[0011] A method for producing differential shrinkage cotton-like nylon yarns includes the following steps;

[0012] S1. Melting: The raw materials are dried and heated and sent into the slice barrel for slicing, and then extruded and melted into a high-viscosity spinning melt by a screw extruder.

[0013] S2. Spinning: The spinning melt is sent into the spinning box, heated, and then evenly distributed to the spinning positions through a bent pipe. After being accurately metered by a metering pump, it reaches the spinning assembly, and is extruded into a melt streamlet after being filtered by the filter material in the spinning assembly.

[0014] S3. Shaping: The melt streamlet is solidified into a silk strip with a certain fineness under the cooling of the cooling air.

[0015] S4. Oil application: The silk strip is passed through the lubrication mechanism for oil application work.

[0016] S5. Pre-network FDY: The lubricated silk strip is treated by a cold roller and a hot roller, and then wound through a godet wheel.

[0017] As a further description of the above technical solution: Step S5 can also adopt pre-network POY. The lubricated silk strip passes through the first godet wheel and the second godet wheel and is then directly wound.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] An equipment for producing different-shrinkage cotton-like polyamide yarn provided by the present invention cools and shapes the shaped yarn through a cooling mechanism, and then passes through a lubricating mechanism and a control mechanism. The winding roller and oil roller in the lubricating mechanism squeeze and lubricate the wire rod, which can make the wire rod softer. And by providing two sets of replacement plates, they can be selected to work simultaneously to increase work efficiency, or only the lower set works. After working for a certain period of time, the upper replacement plate and the lower one can be replaced, so that the equipment can be used for a longer time. It can also enable the other set of replacement plates after one party fails, so as not to delay the work process, increase work efficiency, and make the equipment run more stably.

[0020] An equipment for producing different-shrinkage cotton-like polyamide yarn provided by the present invention makes the adsorption more stable and the disassembly simpler through the electromagnetic adsorption principle of the electromagnetic plate, thereby increasing work efficiency and making the operation of the user more smooth and concise. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a three-dimensional structural schematic diagram of an equipment for producing different-shrinkage cotton-like polyamide yarn according to the present invention;

[0022] Figure 2 is a side sectional internal structural schematic diagram of an equipment for producing different-shrinkage cotton-like polyamide yarn according to the present invention;

[0023] Figure 3 is a side sectional structural schematic diagram of a support frame in an equipment for producing different-shrinkage cotton-like polyamide yarn according to the present invention;

[0024] Figure 4 is an internal structural schematic diagram of a support frame in an equipment for producing different-shrinkage cotton-like polyamide yarn according to the present invention;

[0025] Figure 5 is an enlarged structural schematic diagram of part A in an equipment for producing different-shrinkage cotton-like polyamide yarn according to the present invention Figure 3 ;

[0026] Figure 6 is an enlarged structural schematic diagram of part B in an equipment for producing different-shrinkage cotton-like polyamide yarn according to the present invention Figure 4 ;

[0027] Figure 7 is a process flow chart of a method for producing different-shrinkage cotton-like polyamide yarn in the present invention.

[0028] In the figure: 1, mounting base; 2, support frame; 201, lifting groove; 202, sliding groove; 203, second motor; 204, threaded rod; 205, first electromagnetic block; 3, control mechanism; 301, replacement plate; 302, bearing; 303, first motor; 304, replacement rod; 305, replacement groove; 4, lubrication mechanism; 401, driving gear; 402, driven gear; 403, driven shaft; 404, first shaft rod; 405, second shaft rod; 406, oil roller; 407, winding roller; 408, driving wheel; 409, first gear; 410, second gear; 411, third gear; 5, telescopic mechanism; 501, slider; 502, telescopic rod; 503, support rod; 504, second electromagnetic block; 505, support block; 6, replacement block; 7, filter collection box; 8, sponge; 9, cooling mechanism; 901, cooling box; 902, refrigerator; 903, blowing blade; 904, covering blade; 905, blowing hole; 906, connecting plate; 907, air inlet; 10, bent plate. Detailed implementation mode

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0030] To further understand the content of the present invention, the present invention will be described in detail with reference to the accompanying drawings.

[0031] Combined with Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 6, A polyamide yarn production equipment with different shrinkage imitating cotton, including: a mounting base 1 fixed to the ground; two support frames 2 fixedly installed on the upper surface of the mounting base 1; a control mechanism 3 installed on the side wall of the support frame 2; the control mechanism 3 controls the operation of the lubrication mechanism 4, and the lubrication mechanism 4 is provided inside the two support frames 2; lifting grooves 201 are opened on both sides inside the support frame 2, and the lifting grooves 201 are used for the up and down movement of the replacement plate 301 to complete the position conversion. Sliding grooves 202 are opened on the upper and lower sides inside the support frame 2, and the sliding grooves 202 are used for left and right sliding for position correction. A second motor 203 is fixedly connected inside the lifting groove 201, the output shaft of the second motor 203 is fixedly connected with a threaded rod 204, and the outer side wall of the threaded rod 204 is threadedly connected with a first electromagnetic block 205. A telescopic mechanism 5 is slidably connected inside the sliding groove 202; the control mechanism 3 includes a replacement plate 301, a bearing 302, a first motor 303, a replacement rod 304, and a replacement groove 305. A first motor 303 is fixedly connected to the side wall of the support frame 2, the output shaft of the first motor 303 is fixedly connected with a replacement rod 304, two groups of replacement plates 301 are provided inside the support frame 2, the replacement plate 301 is detachably connected with the telescopic mechanism 5, replacement grooves 305 are opened on the upper and lower surfaces of the replacement plate 301, the replacement grooves 305 are adapted to the replacement rod 304, and the replacement plate 301 is rotatably connected with the lubrication mechanism 4 through a bearing 302; the cooling mechanism 9 includes a cooling box 901, a refrigerator 902, a blowing blade 903, a covering blade 904, a blowing hole 905, and a connecting plate 906. An air inlet 907 is opened above the cooling box 901, a refrigerator 902 is fixedly connected inside the cooling box 901, blowing holes 905 are opened on opposite sides of the cooling box 901, covering blades 904 are slidably connected on opposite sides of the cooling box 901, a blowing blade 903 is fixedly connected inside the blowing hole 905, a connecting plate 906 is slidably connected inside the cooling box 901, and the connecting plate 906 is fixedly connected with the covering blade 904;

[0032] When the spinning is extruded, it passes through the cooling mechanism 9, and then the refrigerator 902 in the cooling box 901 starts to work, converting the external air into cold air, and then blowing the cold air against the spinning through the blowing blade 903 for cooling and shaping. And the covering blade 904 can open any one or two blowing holes 905 to carry out the work. The positions of the two first electromagnetic blocks 205 are opposite. When adjustment is needed, the replacement rod 304 drives the replacement plate 301 to move in the opposite direction, and then adsorbs and fixes with the two first electromagnetic blocks 205. Then, the second motor 203 drives the threaded rod 204 to rotate, so as to replace the heights of the two replacement plates 301, and then move the left and right positions through the sliding groove 202.

[0033] Combined Figure 3 and Figure 5, The lubrication mechanism 4 includes a driving gear 401, a driven gear 402, a driven shaft 403, a first shaft rod 404, a second shaft rod 405, an oil roller 406 and a winding roller 407. The outer side wall of the output shaft of the first motor 303 is fixedly connected with the driving gear 401. The side of the replacement plate 301 close to the first motor 303 is rotatably connected with the driven shaft 403. The outer side wall of the driven shaft 403 is fixedly connected with the driven gear 402. The driving gear 401 and the driven gear 402 are adapted to each other. The inner parts of the two bearings 302 are respectively fixedly connected with the first shaft rod 404 and the second shaft rod 405. The side of the replacement plate 301 close to the first motor 303 is rotatably connected with a driving wheel 408. The ends of the first shaft rod 404 and the second shaft rod 405 close to the first motor 303 are respectively fixedly connected with a first gear 409 and a second gear 410. The end of the driven shaft 403 far from the driven gear 402 is fixedly connected with a third gear 411. The third gear 411 is meshed and connected with the first gear 409. The third gear 411 and the second gear 410 are meshed and connected through the driving wheel 408. The ends of the first shaft rod 404 and the second shaft rod 405 far from the driven gear 402 are respectively fixedly connected with the oil roller 406 and the winding roller 407. The first motor 303 drives the driving gear 401 to rotate. When a set of replacement plates 301 needs to work, the driven gear 402 is meshed with the driving gear 401 through the telescopic mechanism 5, and then the transmission is realized. The first gear 409 and the second gear 410 are driven to rotate through the third gear 411, and the rotation of the oil roller 406 and the winding roller 407 is realized to complete the lubrication work.

[0034] Combined with Figure 4 and Figure 6 , the telescopic mechanism 5 includes a slider 501, a telescopic rod 502, a support rod 503 and a second electromagnetic block 504. The slider 501 is slidably connected inside the chute 202. The telescopic rod 502 is fixedly connected inside the slider 501. Both output ends of the telescopic rod 502 are rotatably connected with a support block 505. A second electromagnetic block 504 is arranged outside the slider 501. A support rod 503 is rotatably connected between the second electromagnetic block 504 and the support block 505. The support block 505 on one side of the cooling box 901 is fixedly connected with the connecting plate 906 through the bent plate 10. The telescopic rod 502 drives the support rod 503 to move, so that the second electromagnetic block 504 is lifted or contracted to complete the adsorption with the replacement plate 301. Through the expansion and contraction of the telescopic rod 502, the closing and opening of the covering leaf 904 to the blowing hole 905 are realized, so as to realize the maximum efficiency of blowing.

[0035] Combined with Figure 1, the replacement rod 304 is a double-headed hydraulic rod. The top end of the replacement rod 304 is rotatably connected with a replacement block 6. The replacement block 6 is adapted to the replacement groove 305. A filter collection box 7 for collecting lubricating oil is rotatably connected between two replacement plates 301 on the same horizontal line. A sponge 8 for increasing the contact surface is fixedly connected to the outer side wall of the oil roller 406. The sponge 8 contacts the wire strip to complete lubrication. The filter collection box 7 can collect grease and stains.

[0036] Working principle: Select whether the single replacement plate 301 works or the two work together according to the requirements. The telescopic rod 502 drives the support rod 503 to move, so that the second electromagnet 504 is lifted or contracted to complete the adsorption with the replacement plate 301. At the same time of adjustment, the bent plate 10 drives the connecting plate 906 to move up and down, and the covering leaf 904 can open any one or two blowing holes 905 to work. When the spun yarn is extruded, it passes through the cooling mechanism 9, and then the refrigerator 902 in the cooling box 901 starts to work, converting the external wind into cold wind, and then blowing the cold wind against the spun yarn through the blowing leaf 903 for cooling and shaping. After that, the shaped spun yarn passes through the oil roller 406 and the winding roller 407, and then the driving gear 401 and the driven gear 402 are meshed and connected. Then the third gear 411 drives the first gear 409 and the second gear 410 to rotate, realizing the rotation of the oil roller 406 and the winding roller 407 to complete the lubrication work;

[0037] When replacement is needed, the replacement rod 304 drives the replacement plate 301 to move in the opposite direction, and then adsorbs and fixes with the two first electromagnets 205. Then the second motor 203 drives the threaded rod 204 to rotate, so as to replace the height of the two replacement plates 301. Then move the left and right positions through the sliding groove 202, and adsorb with the replacement plate 301 through the second electromagnet 504 again.

[0038] A method for producing differential shrinkage cotton-like polyamide yarns includes the following steps;

[0039] S1. Melt: The raw materials are dried and heated and sent into the slicing barrel for slicing, and then extruded and melted into a high-viscosity spun yarn melt by a screw extruder; after the raw materials are pretreated, the cleanliness and dryness of the raw materials are maintained and then sliced and heated;

[0040] S2. Spinning: The spun yarn melt is sent into the spinning box, heated, and then evenly distributed to the spinning positions through the bent pipe. After being accurately metered by the metering pump, it reaches the spinning assembly and is extruded into a melt thin stream after being filtered by the filter material in the spinning assembly; the metering pump can control the flow rate;

[0041] S3. Shaping: The melt thin stream is solidified into a wire strip with a certain fineness under the cooling of the cooling air;

[0042] S4. Oiling: Pass the filament through the lubrication mechanism for oiling; pass it through two lubricating rollers for oiling treatment, and the lubricating rollers can collect waste oil.

[0043] S5. Pre-network FDY: The lubricated filament is treated by a cold roller and a hot roller, and then wound through a godet. Pre-network POY can also be used, where the lubricated filament is directly wound after passing through the first godet and the second godet.

[0044] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand 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 polyamide yarn production equipment for producing different shrinkage imitating cotton, characterized in that: Comprising: A mounting base (1), fixed to the ground; Support frames (2), two in number, fixedly installed on the upper surface of the mounting base (1); A control mechanism (3), installed on the side wall of the support frame (2); A lubrication mechanism (4), with a lubrication mechanism (4) provided inside the two support frames (2); A cooling mechanism (9), installed on the upper surface of the mounting base (1); On both sides inside the support frame (2), lifting grooves (201) are opened, and sliding grooves (202) are opened on the upper and lower sides inside the support frame (2). A second motor (203) is fixedly connected inside the lifting groove (201), the output shaft of the second motor (203) is fixedly connected with a threaded rod (204), a first electromagnetic block (205) is threadedly connected to the outer side wall of the threaded rod (204), and a telescopic mechanism (5) is slidably connected to the inside of the sliding groove (202); The control mechanism (3) includes a replacement plate (301), a bearing (302), a first motor (303), a replacement rod (304), and a replacement groove (305). A first motor (303) is fixedly connected to the side wall of the support frame (2), the output shaft of the first motor (303) is fixedly connected with a replacement rod (304), two groups of replacement plates (301) are provided inside the support frame (2), the replacement plate (301) is detachably connected to the telescopic mechanism (5), replacement grooves (305) are opened on the upper and lower surfaces of the replacement plate (301), the replacement groove (305) is adapted to the replacement rod (304), and the replacement plate (301) is rotatably connected to the lubrication mechanism (4) through the bearing (302); The cooling mechanism (9) includes a cooling box (901), a refrigerator (902), a blowing blade (903), a covering blade (904), a blowing hole (905), and a connecting plate (906). An air inlet (907) is opened above the cooling box (901), a refrigerator (902) is fixedly connected inside the cooling box (901), blowing holes (905) are opened on opposite sides of the cooling box (901), covering blades (904) are slidably connected to opposite sides of the cooling box (901), a blowing blade (903) is fixedly connected inside the blowing hole (905), a connecting plate (906) is slidably connected inside the cooling box (901), and the connecting plate (906) is fixedly connected to the covering blade (904); The telescopic mechanism (5) includes a slider (501), a telescopic rod (502), a support rod (503), and a second electromagnetic block (504). The slider (501) is slidably connected to the inside of the sliding groove (202), a telescopic rod (502) is fixedly connected inside the slider (501), both output ends of the telescopic rod (502) are rotatably connected to a support block (505), a second electromagnetic block (504) is provided outside the slider (501), and a support rod (503) is rotatably connected between the second electromagnetic block (504) and the support block (505). The support block (505) on one side of the cooling box (901) is fixedly connected to the connecting plate (906) through a bent plate (10); The replacement rod (304) is a double-headed hydraulic rod. The top end of the replacement rod (304) is rotatably connected to a replacement block (6), and the replacement block (6) is adapted to the replacement groove (305). The replacement plate (301) is a rectangular plate with a built-in electromagnetic adsorption device, and is electromagnetically adsorbed to the first electromagnetic block (205) and the second electromagnetic block (504).

2. The polyamide yarn production equipment for producing differential shrinkage cotton-like fabric according to claim 1, wherein: The lubrication mechanism (4) includes a driving gear (401), a driven gear (402), a driven shaft (403), a first shaft rod (404), a second shaft rod (405), an oil roller (406) and a winding roller (407). The outer side wall of the output shaft of the first motor (303) is fixedly connected to the driving gear (401). One side of the replacement plate (301) close to the first motor (303) is rotatably connected to the driven shaft (403), and the outer side wall of the driven shaft (403) is fixedly connected to the driven gear (402). The driving gear (401) and the driven gear (402) are adapted to each other. The inner parts of the two bearings (302) are respectively fixedly connected to the first shaft rod (404) and the second shaft rod (405). One side of the replacement plate (301) close to the first motor (303) is rotatably connected to a driving wheel (408). The ends of the first shaft rod (404) and the second shaft rod (405) close to the first motor (303) are respectively fixedly connected to a first gear (409) and a second gear (410). The end of the driven shaft (403) far from the driven gear (402) is fixedly connected to a third gear (411). The third gear (411) is meshed with the first gear (409), and the third gear (411) and the second gear (410) are meshed through the driving wheel (408). The ends of the first shaft rod (404) and the second shaft rod (405) far from the driven gear (402) are respectively fixedly connected to the oil roller (406) and the winding roller (407).

3. An equipment for producing differential shrinkage cotton-like polyamide yarn according to claim 1, characterized in that: A filter collection box (7) for collecting lubricating oil is rotatably connected between the two replacement plates (301) on the same horizontal line.

4. An isotropic shrinkage cotton-like equipment for producing nylon yarn according to claim 2, characterized in that: A sponge (8) for increasing the contact surface is fixedly connected to the outer side wall of the oil roller (406).

5. The polyamide yarn production equipment for producing different shrinkage imitating cotton according to claim 4, characterized in that: The sponge (8) is in contact with the winding roller (407), and the surface of the winding roller (407) is made of a frosted material for increasing friction.

6. A method for producing differential shrinkage cotton-like nylon yarns, characterized in that: Manufactured by the polyamide yarn production differential shrinkage cotton-like equipment according to any one of claims 1-5 including the following steps; S1. Melt: The raw materials are dried and heated and sent into the slice barrel for slicing, and then extruded and melted into a high-viscosity spinning melt by a screw extruder. S2. Spinning: The spinning melt is sent into the spinning box, heated, and then evenly distributed to the spinning positions through a bent pipe, and reaches the spinning assembly after being accurately metered by a metering pump, and is extruded into a melt stream after being filtered by the filter material in the spinning assembly. S3. Shaping: The melt stream is solidified into a filament of a certain fineness under the cooling of the cooling air. S4. Oil application: The filament is passed through the lubrication mechanism (4) for oil application work. S5. Pre-network FDY: The lubricated filament is processed by a cold roller and a hot roller, and then wound through a godet.

7. A method for producing a differential shrinkage cotton-like polyamide yarn according to claim 6, characterized in that: The step S5 can also adopt a pre-network POY. After lubrication, the filament is wound directly after passing through the first godet and the second godet.

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