A preparation method and spinning equipment of straight-method ultra-high molecular weight polyethylene fiber

Abstract

The application relates to the technical field of high polymer material production equipment, in particular to a preparation method and spinning equipment of straight-method ultra-high molecular weight polyethylene fiber, a motor box is arranged at the top of an electric control cabinet, a raw material treatment device is arranged at the top of the motor box, a double-helix stirring shaft for melting spinning liquid is arranged on the front side wall of the motor box, and an extrusion part for pressurizing the melted spinning liquid into a filament is arranged at the front end of the double-helix stirring shaft. The preparation method and spinning equipment of the straight-method ultra-high molecular weight polyethylene fiber are characterized in that the raw material treatment device is arranged at the position of a normal double-helix stirring shaft feeding hopper, so that the emulsification equipment is directly combined with a double-screw extruder, a separate emulsification equipment is omitted, a process flow is simplified, and equipment investment and operation cost are reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of high polymer material production equipment, in particular to a preparation method and spinning equipment of straight method ultra-high molecular weight polyethylene fiber. BACKGROUND

[0002] Ultra-high molecular weight polyethylene fiber is a kind of high-performance fiber, which has the characteristics of high strength, high modulus and high temperature resistance, and is widely used in aerospace, national defense and military industry and other fields. Nowadays, the ultra-high molecular weight polyethylene fiber is generally prepared by "straight method". The high molecular polymer powder can be directly converted into fiber through the process of dissolution and spinning by "straight method", which saves the process of dissolving solid and coagulating liquid in the traditional "dry method" and "wet method" spinning process. This preparation method has the advantages of short production process, high production efficiency and simple solvent recovery.

[0003] However, the preparation of ultra-high molecular weight polyethylene fiber by "straight method" also faces the problems of high viscosity of polymer solution and difficulty in controlling the uniformity of spinning solution, so generally the ultra-high molecular weight polyethylene resin powder, additives and solvent are mixed uniformly, then put into a special emulsifying tank for a long time of multi-stage high shear emulsification at a certain temperature, and then the spinning solution is put into a double screw extruder for dissolution and spinning. However, this will cause the increase of preparation cost, and in the process of transferring the emulsifying tank to the double screw extruder, the process and manpower of the preparation process are increased, and the preparation and transportation of the material are also interrupted.

[0004] In view of this, we propose a preparation method and spinning equipment of straight method ultra-high molecular weight polyethylene fiber.

[0005] The information disclosed in this background section is intended only to increase an understanding of the general context of the present application, and should not be taken as an acknowledgement that this information forms part of the prior art that is already known in this field. SUMMARY

[0006] The purpose of the present application is to provide a preparation method and spinning equipment of straight method ultra-high molecular weight polyethylene fiber to solve the problems raised in the background.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0008] A preparation method of straight method ultra-high molecular weight polyethylene fiber, comprising the following steps:

[0009] I. Preparation stage

[0010] S1, start the motor box through the electric control cabinet, and drive the double helical stirring shaft to rotate, to ensure the stable operation of the whole device;

[0011] II. Raw material processing stage

[0012] S2, pour a proper amount of ultra-high molecular weight polyethylene resin powder, additives and solvents into the inside of the centrifugal cylinder of the raw material processing device, start the electric heating tube in the fixed part, heat the inside temperature of the centrifugal cylinder by heat conduction;

[0013] S3, after the inside of the centrifugal cylinder is heated to 95-105℃, start the feeding motor in the feeding part, and drive the connecting shaft in the centrifugal part to rotate through the transmission part;

[0014] S4, with the rotation of the connecting shaft, drive the counter gear to rotate, drive the cylinder gear and shaft gear to rotate in opposite directions, and then drive the whole centrifugal cylinder and stirring part to rotate respectively, so as to carry out multi-stage high shear emulsification of the raw material;

[0015] III. Discharging stage

[0016] S5, after the raw material is emulsified into spinning dope, start the rotating motor in the discharging part, drive the rotating gear to rotate, and then drive the annular tooth plate to rotate, so as to change the position of the blocking plate inside the discharging cover;

[0017] S6, after the spinning dope is poured into the inside of the storage bin body through the cover through slot on the discharging cover, the rotating motor is turned off, and the blocking plate is quickly reset under the elastic force of the arc spring;

[0018] IV. Feeding stage

[0019] S7, start the electric heating rod in the feeding part to ensure the constant temperature inside the storage bin body, and the feeding screw rotates with the continuously started feeding motor, so as to send the spinning dope into the inside of the double helix stirring shaft;

[0020] V. Spinning dope melting stage

[0021] S8, the two screws in the double helix stirring shaft compress the spinning dope during rotation, push it to forward delivery, increase the temperature of the spinning dope, and make it melt;

[0022] VI. Extrusion stage

[0023] S9, the double helix stirring shaft transports the melted spinning dope into the inside of the extrusion part, and the melted spinning dope is extruded from the lower shower after being pressed by the upper injector in the extrusion part, so as to form fine filaments;

[0024] VII. Winding stage

[0025] S10, the extruded filaments are cooled in a cooling pool by a conveying traction device, then a plurality of filaments are passed through a buncher to form a bundle of filaments, and then the bundle of filaments is stretched by a stretching device, and finally the filaments are wound into a bobbin by a winding device, so that the ultra-high molecular weight polyethylene fiber is prepared.

[0026] In another aspect, the application also provides a spinning device for direct spinning of ultra-high molecular weight polyethylene fiber, wherein the top of the electric control cabinet is provided with a motor box, the top of the motor box is provided with a raw material processing device, and the raw material processing device comprises a feeding part, a fixing part arranged on the top of the feeding part, a centrifugal part arranged inside the fixing part for emulsifying raw materials, a discharging part arranged at the bottom of the centrifugal part, and a transmission member arranged between the centrifugal part and the feeding part for transmitting power.

[0027] The feeding part comprises a storage bin body, a plurality of regularly distributed electric heating rods arranged on the inner side wall of the storage bin body, a feeding pipe arranged at the bottom of the storage bin body, a feeding motor arranged at the center position of the rear side wall of the feeding pipe, and a feeding screw rod arranged inside the feeding pipe.

[0028] The fixing part comprises a fixing cylinder body, two groups of regularly distributed limiting arc blocks arranged on the inner side wall of the fixing cylinder body in parallel from top to bottom, a heating cylinder body arranged at the inner side wall of the fixing cylinder body close to the middle position, and an electric heating pipe arranged inside the heating cylinder body.

[0029] The centrifugal part comprises a centrifugal cylinder body, a fixing cylinder cover arranged at the top of the centrifugal cylinder body, a cylinder gear arranged at the center position of the top surface of the fixing cylinder cover, a stirring part arranged inside the centrifugal cylinder body, a butt joint gear vertically engaged with the cylinder gear, and a connecting shaft arranged on the inner side wall of the butt joint gear.

[0030] The discharging part comprises a discharging cover, a plurality of resistance plates symmetrically arranged inside the discharging cover, a plurality of arc springs arranged on the outer side wall of the resistance plates, plate body protruding rods arranged at the end position of the arc-shaped side wall of the resistance plates, annular toothed plates arranged outside the plurality of plate body protruding rods, and rotating gears arranged outside the discharging cover.

[0031] The front side wall of the motor box is provided with a double helix stirring shaft for melting the spinning raw solution, and the front end of the double helix stirring shaft is provided with an extrusion part for pressurizing the melted spinning raw solution into filaments.

[0032] In the technical scheme of the present application, the discharge hole is formed through the top of the storage bin body, the electric heating rod is fixedly connected to the inner side wall of the storage bin body by screws, the support rods are welded and fixed to the outer side wall bottom corner positions at the left and right ends of the outer side wall of the storage bin body, the feeding pipe is integrally formed with the storage bin body, the front end pipe wall of the feeding pipe is fixedly connected to the outer side wall of the double helix stirring shaft feeding bin by bolts, the feeding motor is fixedly connected to the outer side wall of the feeding pipe by bolts, the output shaft of the feeding motor is coaxially connected with the feeding screw, and the feeding screw is rotatably connected to the inside of the feeding pipe.

[0033] In the technical scheme of the present application, the fixed cylinder body is fixedly connected to the top surface of the storage bin body by bolts, the limiting arc block is integrally formed with the fixed cylinder body, the inner side wall of the limiting arc block is provided with a limiting sliding groove, two symmetrically arranged fixed supports are fixedly connected to the cylinder opening of the fixed cylinder body by screws, the top ends of the two fixed supports are integrally formed with a same positioning block, the heating cylinder body is fixedly connected to the inner side wall of the fixed cylinder body by bolts, and the electric heating pipe is fixedly connected to the inner side wall of the heating cylinder body by screws.

[0034] In the technical scheme of the present application, the outer side wall of the centrifugal cylinder body is integrally formed with a plurality of regularly distributed cylinder wall ring blocks, the cylinder wall ring blocks are slidably connected to the inside of the limiting sliding groove, the fixed cylinder cover is fixedly connected to the cylinder opening of the centrifugal cylinder body by bolts, the discharge pipe is externally threadedly connected with a sealing cover integrally formed on the top surface of the fixed cylinder cover, the cylinder gear is fixedly connected to the outside of the sleeve integrally formed at the center of the top surface of the fixed cylinder cover by a snap pin, and the butt joint gear is fixedly connected with the end portion of the connecting shaft by a snap pin.

[0035] In the technical scheme of the present application, the stirring part comprises a stirring shaft rotatably connected to the inside of the sleeve at the center of the top surface of the fixed cylinder cover, a shaft body gear fixedly connected to the top end position of the stirring shaft by a snap pin, stirring blades fixedly connected to the outer side wall of the stirring shaft by screws, sheet body blades integrally formed on the outer side wall of the stirring blades, and a shaft bottom scraping piece fixedly connected to the bottom outer side wall of the stirring shaft by a snap pin, the bottom end of the stirring shaft is rotatably connected to the top surface of the discharge cover, and the shaft body gear is vertically engaged with the butt joint gear.

[0036] In the technical scheme of the present application, the blanking cover is fixedly connected to the outside of the blanking hole at the top of the storage bin body by bolts, a plurality of symmetrically arranged and vertically penetrating cover body through grooves are formed in the inside of the blanking cover, a cover body sliding groove for the movement of the blocking plate is formed in one end groove wall of the cover body through groove, a plurality of receiving grooves with circular arc-shaped cross sections are formed in the inside wall groove wall of the cover body sliding groove, and a plurality of cover wall sliding grooves in communication with the cover body sliding groove are formed in the outside wall of the blanking cover.

[0037] In the technical scheme of the present application, the size of the blocking plate is greater than that of the cover body through groove, the blocking plate is slidingly connected to the inside of the cover body sliding groove, the two ends of the arc-shaped spring are respectively welded and fixed to the outside wall of the blocking plate and the inside groove wall of the receiving groove, the plate body protruding rod is integrally formed with the blocking plate, the ring-shaped toothed plate is welded and fixed with the plate body protruding rod, and the rotating gear is in meshing engagement with the ring-shaped toothed plate.

[0038] In the technical scheme of the present application, the rotating gear is provided with a support, the support is welded and fixed to the top surface of the storage bin body, a rotating motor is fixedly connected to the central position at the top of the support by screws, and the output shaft of the rotating motor is fixedly connected with the rotating gear by a snap pin.

[0039] In the technical scheme of the present application, the transmission member comprises a fixed box body fixedly connected to the top surface of the motor box by bolts, two belt pulleys rotatingly connected to the inside of the fixed box body and a transmission belt sleeved to the outside of the two belt pulleys, the lower belt pulley is fixedly connected to the outside wall of the output shaft of the feeding motor by a snap pin, and the upper belt pulley is fixedly connected to the outside wall of the rear end of the connecting shaft by a snap pin.

[0040] Compared with the prior art, the present application has the following beneficial effects:

[0041] 1. The preparation method and spinning equipment of the straight method ultra-high molecular weight polyethylene fiber, by installing a raw material treatment device at the position of the normal double-helix stirring shaft feeding hopper, the emulsification equipment is directly combined with the double-screw extruder, the separate emulsification equipment is omitted, the process flow is simplified, and the equipment investment and operating cost are reduced.

[0042] 2. The preparation method and spinning equipment of the straight method ultra-high molecular weight polyethylene fiber, after the feeding motor in the feeding part is started, the feeding screw is driven to rotate, and the centrifugal cylinder in the centrifugal part and the stirring part as a whole are also driven to rotate by the transmission member, after the spinning stock solution flows into the inside of the storage bin body, new raw materials can be directly added to the inside of the centrifugal cylinder, the upper and lower structures work cooperatively, the continuous preparation and conveying of the materials can be realized, the waste of energy is reduced, and the energy consumption of the equipment is lowered.

[0043] 2. The preparation method and spinning device of the straight method ultra-high molecular weight polyethylene fiber, by the vertical engagement of the barrel gear and the shaft gear with the butt gear, the rotation direction of the centrifugal barrel and the stirring part is opposite after the rotation of the butt gear, so as to improve the stirring effect of the polymer solution and ensure the uniformity of the prepared spinning solution. BRIEF DESCRIPTION OF DRAWINGS

[0044] Figure 1 It is the overall structure schematic diagram of the invention;

[0045] Figure 2 It is the structure schematic diagram of the raw material processing device in the invention;

[0046] Figure 3 It is the partial structure cutaway schematic diagram of the raw material processing device in the invention;

[0047] Figure 4 It is the structure cutaway schematic diagram of the feeding part in the invention;

[0048] Figure 5 It is the structure cutaway schematic diagram of the fixed part in the invention;

[0049] Figure 6 It is the structure cutaway schematic diagram of the centrifugal part in the invention;

[0050] Figure 7 It is the structure schematic diagram of the stirring part in the invention;

[0051] Figure 8 It is the structure cutaway schematic diagram of the discharging part in the invention;

[0052] Figure 9 It is the structure cutaway schematic diagram of the discharging cover in the invention;

[0053] Figure 10 It is the structure schematic diagram of the transmission part in the invention.

[0054] BRIEF DESCRIPTION OF DRAWINGS

[0055] 1, electric control cabinet;

[0056] 2, motor box;

[0057] 3, raw material processing device; 30, feeding part; 301, storage bin body; 302, electric heating rod; 303, support rod; 304, feeding pipe; 305, feeding motor; 306, feeding screw; 31, fixed part; 310, fixed cylinder body; 311, limit arc block; 3110, limit sliding groove; 312, fixed support; 313, positioning block; 314, heating cylinder body; 315, electric heating pipe; 32, centrifugal part; 320, centrifugal cylinder body; 321, cylinder wall ring block; 322, fixed cylinder cover; 323, sealing cover; 324, cylinder gear; 326, butt joint gear; 327, connecting shaft; 325, stirring part; 3250, stirring shaft; 3251, shaft body gear; 3252, stirring blade; 3253, sheet body blade; 3254, shaft bottom scraper; 33, discharging part; 330, discharging cover; 3301, cover body through slot; 3302, cover body sliding groove; 3303, storage groove; 3304, cover wall sliding groove; 331, material blocking plate; 332, arc spring; 333, plate body protruding rod; 334, annular toothed plate; 335, rotating gear; 336, support; 337, rotating motor; 34, transmission part; 340, fixed box body; 341, belt pulley; 342, transmission belt;

[0058] 4, double helix stirring shaft;

[0059] 5, wire extruding part. DETAILED DESCRIPTION

[0060] The technical solutions in the present application will be described clearly and completely below in combination with the drawings in the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0061] Please refer to Figures 1-10 The present embodiment provides a technical solution:

[0062] A preparation method of straight-law ultra-high molecular weight polyethylene fiber, comprising the following steps:

[0063] I. Preparation stage

[0064] S1, start the motor box 2 through the electric control cabinet 1 to drive the double helix stirring shaft 4 to rotate, and ensure that the overall device operates stably;

[0065] II. Raw material processing stage

[0066] S2, a proper amount of ultra-high molecular weight polyethylene resin powder, additives and solvents are poured into the inside of the centrifugal cylinder body 320 of the raw material processing device 3, and the electric heating pipe 315 in the fixed part 31 is started to heat the internal temperature of the centrifugal cylinder body 320 through heat conduction.

[0067] S3, after the inside of the centrifugal cylinder 320 is heated to 95-105℃, the feeding motor 305 in the feeding part 30 is started, and the connecting shaft 327 in the centrifugal part 32 is driven to rotate through the transmission part 34;

[0068] S4, with the rotation of the connecting shaft 327, the abutting gear 326 is driven to rotate, and the cylinder gear 324 and the shaft gear 3251 are driven to rotate in opposite directions, thereby driving the whole centrifugal cylinder 320 and the stirring part 325 to rotate respectively, so that the raw material is subjected to multi-stage high shear emulsification;

[0069] III. discharging stage

[0070] S5, after the raw material is emulsified into a spinning dope, the rotating motor 337 in the discharging part 33 is started, and the rotating gear 335 is driven to rotate, thereby driving the annular toothed plate 334 to rotate, so as to change the position of the blocking plate 331 inside the discharging cover 330;

[0071] S6, after the spinning dope is completely poured into the inside of the storage bin body 301 through the cover through slot 3301 on the discharging cover 330, the rotating motor 337 is turned off, and the blocking plate 331 is quickly reset under the elastic force of the arc spring 332;

[0072] IV. feeding stage

[0073] S7, the heating rod 302 in the feeding part 30 is started to ensure the constant temperature inside the storage bin body 301, and the feeding screw 306 is continuously rotated with the continuously started feeding motor 305, so as to send the spinning dope into the inside of the double helix stirring shaft 4;

[0074] V. dope melting stage

[0075] S8, the two screws in the double helix stirring shaft 4 compress the spinning dope during rotation to push it forward, thereby increasing the temperature of the spinning dope and causing it to melt;

[0076] VI. extrusion stage

[0077] S9, the double helix stirring shaft 4 transports the melted spinning dope to the inside of the extrusion part 5, and the melted spinning dope is extruded from the lower shower after being pressed by the upper injector in the extrusion part 5, thereby forming a fine wire;

[0078] VII. winding stage

[0079] S10, the extruded yarn is cooled by a conveying traction device, and then a plurality of yarns are passed through a buncher to form a bunch of yarns, and the yarns are stretched by a stretching device, and finally the yarns are wound into a bobbin by a winding device, so that the preparation of the ultra-high molecular weight polyethylene fiber is completed.

[0080] The spinning equipment of the straight method ultra-high molecular weight polyethylene fiber of the application is characterized in that the top of the electric control cabinet 1 is provided with a motor box 2, the top of the motor box 2 is provided with a raw material processing device 3, the raw material processing device 3 comprises a feeding part 30, a fixing part 31 arranged on the top of the feeding part 30, a centrifugal part 32 arranged in the fixing part 31 and used for emulsifying raw materials, a discharging part 33 arranged at the bottom of the centrifugal part 32, and a transmission member 34 arranged between the centrifugal part 32 and the feeding part 30 and used for transmitting power.

[0081] In this embodiment, as shown in the figure, Figure 4 The feeding part 30 comprises a storage bin body 301, a plurality of regularly distributed electric heating rods 302 arranged on the inner side wall of the storage bin body 301, a feeding pipe 304 arranged at the bin opening at the bottom of the storage bin body 301, a feeding motor 305 arranged at the center position of the rear side wall of the feeding pipe 304, and a feeding screw 306 arranged in the feeding pipe 304.

[0082] Further, the discharging hole is formed through the top and bottom of the storage bin body 301, the electric heating rods 302 are fixedly connected to the inner side wall of the storage bin body 301 by screws, the support rods 303 are welded and fixed to the outer side wall at the corner positions of the left and right ends of the outer side wall of the storage bin body 301, the feeding pipe 304 is integrally formed with the storage bin body 301, the front end wall of the feeding pipe 304 is fixedly connected to the outer side wall of the feeding bin of the double helix stirring shaft 4 by bolts, the feeding motor 305 is fixedly connected to the outer side wall of the feeding pipe 304 by bolts, the output shaft of the feeding motor 305 is coaxially connected to the feeding screw 306, the feeding screw 306 is rotationally connected to the inside of the feeding pipe 304, and the front end of the feeding screw 306 extends into the inside of the feeding bin of the double helix stirring shaft 4.

[0083] Further, the storage bin body 301 is used to store the emulsified spinning raw solution, the support rods 303 are used to ensure the stability of the overall structure of the feeding part 30, the feeding pipe 304 is used to provide a rotation interval for the feeding screw 306, the electric heating rods 302 in the feeding part 30 are started to ensure the constant temperature inside the storage bin body 301, and the feeding screw 306 keeps rotating with the continuously started feeding motor 305, so that the spinning raw solution is saturatedly fed into the inside of the double helix stirring shaft 4.

[0084] In this embodiment, as shown in the figure, Figure 5As shown, the fixing part 31 comprises a fixing cylinder 310, two sets of limiting arc blocks 311 regularly distributed on the inner side wall of the fixing cylinder 310, a heating cylinder 314 arranged on the inner side wall of the fixing cylinder 310 near the middle position, and an electric heating tube 315 arranged in the heating cylinder 314;

[0085] Further, the fixing cylinder 310 is fixedly connected to the top surface of the storage bin body 301 by bolts, the limiting arc blocks 311 are integrally formed with the fixing cylinder 310, the inner side wall of the limiting arc blocks 311 is provided with a limiting sliding groove 3110, the cylinder opening of the fixing cylinder 310 is fixedly connected with two symmetrically arranged fixing supports 312 by screws, the top ends of the two fixing supports 312 are integrally formed with a same positioning block 313, the heating cylinder 314 is fixedly connected to the inner side wall of the fixing cylinder 310 by bolts, and the electric heating tube 315 is fixedly connected to the inner side wall of the heating cylinder 314 by screws.

[0086] Further, the fixing cylinder 310 is used to ensure the strength of the overall structure of the fixing part 31, the limiting sliding groove 3110 provided in the limiting arc blocks 311 is used to limit the rotation range of the centrifugal cylinder 320, the fixing supports 312 are used to provide a fixed base point for the positioning block 313, the positioning block 313 is used to provide a rotation range for the stirring shaft 3250, to ensure the stability of the stirring shaft 3250 during rotation, and to start the electric heating tube 315 in the heating cylinder 314, so that the polymer in the centrifugal cylinder 320 reaches the optimal emulsification temperature.

[0087] In this embodiment, as shown in the drawings, Figures 6-7 The centrifugal part 32 comprises a centrifugal cylinder 320, a fixing cylinder cover 322 arranged on the top of the centrifugal cylinder 320, a cylinder gear 324 arranged at the center position of the top surface of the fixing cylinder cover 322, a stirring part 325 arranged in the centrifugal cylinder 320, a butt joint gear 326 vertically engaged with the cylinder gear 324, and a connecting shaft 327 arranged on the inner side wall of the butt joint gear 326.

[0088] Specifically, the outer side wall of the centrifugal cylinder 320 is integrally formed with a plurality of regularly distributed cylinder wall ring blocks 321, the cylinder wall ring blocks 321 are slidingly connected to the inside of the limiting sliding groove 3110, the fixing cylinder cover 322 is fixedly connected to the cylinder opening of the centrifugal cylinder 320 by bolts, a sealing cover 323 is threadedly connected to the outside of the discharge pipe integrally formed on the top surface of the fixing cylinder cover 322, the cylinder gear 324 is fixedly connected to the outside of the sleeve integrally formed on the center of the top surface of the fixing cylinder cover 322 by a snap pin, and the butt joint gear 326 is fixedly connected to the end of the connecting shaft 327 by a snap pin.

[0089] Furthermore, the stirring unit 325 includes a stirring shaft 3250 rotatably connected to the inside of the central sleeve on the top surface of the fixed cylinder cover 322, a shaft gear 3251 fixedly connected to the top end of the stirring shaft 3250 by a snap pin, a stirring blade 3252 fixedly connected to the outer wall of the stirring shaft 3250 by screws, a blade 3253 integrally formed on the outer wall of the stirring blade 3252, and a shaft bottom scraper 3254 fixedly connected to the bottom outer wall of the stirring shaft 3250 by a snap pin. The bottom end of the stirring shaft 3250 is rotatably connected to the top surface of the discharge cover 330, and the shaft gear 3251 meshes perpendicularly with the mating gear 326.

[0090] Furthermore, the cylinder wall ring block 321 on the outer wall of the centrifuge cylinder 320 is used to cooperate with the limiting slide groove 3110 to ensure the stability of the overall rotation of the centrifuge cylinder 320. The fixed cylinder cover 322 is used to provide a fixed platform for the sealing cover 323 and the cylinder gear 324. After the connecting shaft 327 rotates, it drives the docking gear 326 to rotate together, which in turn drives the cylinder gear 324 and the shaft gear 3251 to rotate in the opposite direction, thereby driving the centrifuge cylinder 320 and the stirring part 325 to rotate as a whole, realizing multi-stage high-shear emulsification of the raw materials. The stirring shaft 3250 in the stirring part 325 is used to provide a fixed base point for the shaft gear 3251, stirring blade 3252 and shaft bottom scraper 3254. The stirring blade 3252 and the blade 3253 are used to improve the stirring effect of the raw materials. The shaft bottom scraper 3254 is used to ensure that the raw materials of the centrifuge cylinder 320 are scraped into the interior of the storage bin 301.

[0091] In this embodiment, as Figures 8-9 As shown, the unloading part 33 includes an unloading cover 330, several material blocking plates 331 symmetrically arranged inside the unloading cover 330, several arc-shaped springs 332 arranged on the outer side wall of the material blocking plates 331, plate protrusions 333 arranged at the end of the arc-shaped side wall of the material blocking plates 331, annular toothed plates 334 arranged on the outer side of the several plate protrusions 333, and rotating gears 335 arranged on the outer side of the unloading cover 330.

[0092] Specifically, the discharge cover 330 is fixedly connected to the outside of the discharge hole at the top of the storage bin 301 by bolts. The discharge cover 330 has several symmetrically arranged and vertically connected cover grooves 3301 inside. The discharge cover 330 has a cover sliding groove 3302 for moving the material blocking plate 331 on one end of the groove wall of the cover groove 3301. The discharge cover 330 has several receiving grooves 3303 with a transverse cross section in the arc shape on the inner side wall of the cover sliding groove 3302. The discharge cover 330 has several cover wall sliding grooves 3304 that are connected to the cover sliding groove 3302 on the outer side wall of the discharge cover 330.

[0093] Further, the size of the blocking plate 331 is greater than the size of the cover through slot 3301, the blocking plate 331 is slidingly connected to the inside of the cover sliding slot 3302, the two ends of the arc-shaped spring 332 are respectively welded and fixed to the outside wall of the blocking plate 331 and the inside wall of the receiving groove 3303, the plate body protruding rod 333 is integrally formed with the blocking plate 331, the annular toothed plate 334 is welded and fixed with the plate body protruding rod 333, and the rotating gear 335 is meshed with the annular toothed plate 334.

[0094] Further, the upper side of the rotating gear 335 is provided with a support 336, the support 336 is welded and fixed to the top surface of the storage bin body 301, a rotating motor 337 is fixedly connected to the center position of the top of the support 336 through a screw, and the output shaft of the rotating motor 337 is fixedly connected with the rotating gear 335 through a clamping pin.

[0095] Further, the cover through slot 3301 in the blanking cover 330 is used to provide a section for the spinning dope to flow into the storage bin body 301, the cover sliding slot 3302 is used to facilitate the movement of the blocking plate 331, the receiving groove 3303 is used to provide a receiving space for the arc-shaped spring 332, the cover wall sliding slot 3304 is used to facilitate the movement of the plate body protruding rod 333, the blocking plate 331 is used to prevent the spinning dope from entering the inside of the storage bin body 301 in advance, the plate body protruding rod 333 is used to connect the blocking plate 331 and the annular toothed plate 334, after the rotating motor 337 is started, the rotating gear 335 is driven to rotate, and then the annular toothed plate 334 is driven to rotate, so as to change the position of the blocking plate 331 in the inside of the blanking cover 330, after the spinning dope is completely poured into the inside of the storage bin body 301 through the cover through slot 3301 on the blanking cover 330, the rotating motor 337 is turned off, and the blocking plate 331 is quickly reset under the action of the elastic force of the arc-shaped spring 332.

[0096] In the embodiment, as shown in Figure 10 The transmission member 34 includes a fixed box body 340 fixedly connected to the top surface of the motor box 2, two belt pulleys 341 rotatingly connected to the inside of the fixed box body 340, and a transmission belt 342 sleeved outside the two belt pulleys 341, the lower belt pulley 341 is fixedly connected to the outside wall of the output shaft of the feeding motor 305 through a clamping pin, and the upper belt pulley 341 is fixedly connected to the outside wall of the rear end of the connecting shaft 327 through a clamping pin.

[0097] Further, the fixed box body 340 is used to provide a placement interval for the belt pulleys 341 and the transmission belt 342, after the lower belt pulley 341 rotates with the output shaft of the feeding motor 305, the upper belt pulley 341 is driven to rotate through the transmission belt 342, so as to drive the connecting shaft 327 to rotate.

[0098] In the present application, the front side wall of the motor box 2 is provided with a double helix stirring shaft 4 for the molten spinning dope, and the front end of the double helix stirring shaft 4 is provided with an extrusion part 5 for pressurizing the molten spinning dope into filaments;

[0099] Further, the double helix stirring shaft 4 transports the molten spinning dope to the inside of the extrusion part 5, and the molten spinning dope is extruded from the lower shower after being pressed by the upper injector, thereby forming fine filaments.

[0100] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A spinning device for ultra-high molecular weight polyethylene fiber produced by direct spinning, the spinning device comprising an electrical control cabinet (1), a motor housing (2), a raw material processing device (3), and a double-helix stirring shaft (4), wherein the motor housing (2) is started by the electrical control cabinet (1), thereby driving the double-helix stirring shaft (4) to rotate, the motor housing (2) is provided on the top of the electrical control cabinet (1), and the raw material processing device (3) is provided on the top of the motor housing (2), characterized in that: The raw material processing device (3) comprises a feeding part (30), a fixed part (31) arranged on the top of the feeding part (30), a centrifugal part (32) arranged inside the fixed part (31) for emulsifying raw materials, a discharging part (33) arranged at the bottom of the centrifugal part (32), and a transmission member (34) arranged between the centrifugal part (32) and the feeding part (30) for transmitting power; The feeding part (30) comprises a storage bin body (301), a plurality of regularly distributed electric heating rods (302) arranged on the inner side wall of the storage bin body (301), a feeding pipe (304) arranged at the bottom of the storage bin body (301), a feeding motor (305) arranged at the center position of the rear side wall of the feeding pipe (304), and a feeding screw (306) arranged inside the feeding pipe (304); The fixed part (31) comprises a fixed cylinder body (310), two groups of regularly distributed limiting arc blocks (311) arranged on the inner side wall of the fixed cylinder body (310) in parallel from top to bottom, a heating cylinder body (314) arranged at the inner side wall of the fixed cylinder body (310) near the middle position, and an electric heating pipe (315) arranged inside the heating cylinder body (314); The centrifugal part (32) comprises a centrifugal cylinder body (320), a fixed cylinder cover (322) arranged at the top of the centrifugal cylinder body (320), a cylinder gear (324) arranged at the center position of the top surface of the fixed cylinder cover (322), a stirring part (325) arranged inside the centrifugal cylinder body (320), an abutting gear (326) vertically engaged with the cylinder gear (324), and a connecting shaft (327) arranged on the inner side wall of the abutting gear (326); The discharging part (33) comprises a discharging cover (330), a plurality of blocking plates (331) symmetrically arranged inside the discharging cover (330), a plurality of arc springs (332) arranged on the outer side wall of the blocking plates (331), plate body protruding rods (333) arranged at the end position of the arc-shaped side wall of the blocking plates (331), an annular toothed plate (334) arranged outside the plate body protruding rods (333), and a rotating gear (335) arranged outside the discharging cover (330); The front side wall of the motor box (2) is provided with a double helix stirring shaft (4) for melting the spinning dope, and the front end of the double helix stirring shaft (4) is provided with an extrusion part (5) for pressurizing the melted spinning dope into a filament.

2. The direct spinning apparatus for ultra-high molecular weight polyethylene fiber according to claim 1, wherein: The top of the storage bin body (301) is provided with a downward feeding hole, the electric heating rod (302) is fixedly connected to the inner side wall of the storage bin body (301) by screws, the support rods (303) are welded and fixed to the bottom corners of the outer side walls at the left and right ends of the storage bin body (301), the feeding pipe (304) is integrally formed with the storage bin body (301), the front end wall of the feeding pipe (304) is fixedly connected to the outer side wall of the double helix stirring shaft (4) feeding bin by bolts, the feeding motor (305) is fixedly connected to the outer side wall of the feeding pipe (304) by bolts, the output shaft of the feeding motor (305) is coaxially connected with the feeding screw rod (306), the feeding screw rod (306) is rotatably connected to the inside of the feeding pipe (304), and the front end of the feeding screw rod (306) extends into the inside of the double helix stirring shaft (4) feeding bin.

3. The spinning apparatus of the straight forward UHMW-PE fiber according to claim 2, characterized in that: The fixed cylinder body (310) is fixedly connected to the top surface of the storage bin body (301) by bolts, the limiting arc block (311) is integrally formed with the fixed cylinder body (310), the inner side wall of the limiting arc block (311) is provided with a limiting sliding groove (3110), two symmetrically arranged fixed supports (312) are fixedly connected to the cylinder opening of the fixed cylinder body (310) by screws, the top ends of the two fixed supports (312) are integrally formed with the same positioning block (313), the heating cylinder body (314) is fixedly connected to the inner side wall of the fixed cylinder body (310) by bolts, and the electric heating pipe (315) is fixedly connected to the inner side wall of the heating cylinder body (314) by screws.

4. The spinning apparatus of the straight forward UHMW-PE fiber according to claim 3, characterized by: The outer side wall of the centrifugal cylinder body (320) is integrally formed with a plurality of regularly distributed cylinder wall ring blocks (321), the cylinder wall ring blocks (321) are slidably connected to the inside of the limiting sliding groove (3110), the fixed cylinder cover (322) is fixedly connected to the cylinder opening of the centrifugal cylinder body (320) by bolts, the discharge pipe outside the fixed cylinder cover (322) top surface is integrally formed with a sealing cover (323) through thread connection, the cylinder gear (324) is fixedly connected to the outside of the sleeve integrally formed on the top surface center of the fixed cylinder cover (322) through a snap pin, and the butt joint gear (326) is fixedly connected with the end of the connecting shaft (327) through a snap pin.

5. The spinning apparatus of the straight forward UHMW-PE fiber according to claim 4, characterized by: The stirring part (325) comprises a stirring shaft (3250) rotatably connected to the inside of the sleeve on the top surface center of the fixed cylinder cover (322), an axle body gear (3251) fixedly connected to the top end position of the stirring shaft (3250) through a snap pin, stirring blades (3252) fixedly connected to the outer side wall of the stirring shaft (3250) through screws, blade body knives (3253) integrally formed on the outer side wall of the stirring blades (3252), and an axle bottom scraping piece (3254) fixedly connected to the outer side wall of the bottom of the stirring shaft (3250) through a snap pin, the bottom end of the stirring shaft (3250) is rotatably connected to the top surface of the feeding cover (330), and the axle body gear (3251) is vertically engaged with the butt joint gear (326).

6. The direct spinning apparatus for ultra-high molecular weight polyethylene fiber according to claim 5, wherein: The blanking cover (330) is fixedly connected to the outside of the blanking hole at the top of the storage bin body (301) by bolts, a plurality of symmetrically arranged and vertically penetrating cover body through grooves (3301) are formed in the inside of the blanking cover (330), a cover body sliding groove (3302) for the movement of the blocking plate (331) is formed in one of the end groove walls of the cover body through groove (3301), a plurality of horizontally sectioned arc-shaped receiving grooves (3303) are formed in the inside wall groove wall of the cover body sliding groove (3302), and a plurality of cover wall sliding grooves (3304) are formed in the outside wall of the blanking cover (330) and are in communication with the cover body sliding groove (3302).

7. The spinning apparatus of straight-fiber ultra-high molecular weight polyethylene fiber according to claim 6, characterized by: The size of the blocking plate (331) is greater than that of the cover body through groove (3301), the blocking plate (331) is slidingly connected to the inside of the cover body sliding groove (3302), the two ends of the arc-shaped spring (332) are respectively welded and fixed to the outside wall of the blocking plate (331) and the inside groove wall of the receiving groove (3303), the plate body protruding rod (333) is integrally formed with the blocking plate (331), the annular toothed plate (334) is welded and fixed with the plate body protruding rod (333), and the rotating gear (335) is in meshing connection with the annular toothed plate (334).

8. The direct spinning apparatus for ultra-high molecular weight polyethylene fiber according to claim 7, wherein: A bracket (336) in the shape of a Chinese character is arranged above the rotating gear (335), the bracket (336) is welded and fixed to the top surface of the storage bin body (301), a rotating motor (337) is fixedly connected to the center position at the top of the bracket (336) by screws, and the output shaft of the rotating motor (337) is fixedly connected with the rotating gear (335) by a snap pin.

9. The spinning apparatus of the straight forward UHMW-PE fiber according to claim 8, characterized by: The transmission member (34) comprises a fixed box body (340) fixedly connected to the top surface of the motor box (2), two belt pulleys (341) rotatingly connected to the inside of the fixed box body (340), and a transmission belt (342) sleeved outside the two belt pulleys (341), the lower belt pulley (341) is fixedly connected to the outside wall of the output shaft of the feeding motor (305) by a snap pin, and the upper belt pulley (341) is fixedly connected to the outside wall of the rear end of the connecting shaft (327) by a snap pin.

10. A method of manufacturing straight process ultra-high molecular weight polyethylene fiber using the spinning apparatus for straight process ultra-high molecular weight polyethylene fiber according to claim 9, characterized by: The method comprises the following steps: I. Preparation stage S1, start the motor box (2) through the electric control cabinet (1), drive the double helical stirring shaft (4) to rotate, and ensure that the overall device operates stably; II. Raw material processing stage S2, pour a proper amount of ultra-high molecular weight polyethylene resin powder, additives and solvents into the inside of the centrifugal cylinder (320) of the raw material processing device (3), and start the electric heating pipe (315) in the fixed part (31) to heat the temperature inside the centrifugal cylinder (320) through heat conduction; S3, after the inside of the centrifugal cylinder (320) is heated to 95-105℃, start the feeding motor (305) in the feeding part (30) to drive the connecting shaft (327) in the centrifugal part (32) to rotate through the transmission member (34); S4, with the rotation of the connecting shaft (327), the butt joint gear (326) is driven to rotate, and the cylinder gear (324) and the shaft gear (3251) are driven to rotate in opposite directions, thereby driving the overall rotation of the centrifugal cylinder (320) and the stirring part (325), so as to carry out multi-stage high shear emulsification of the raw materials; III. discharging stage S5, after the raw material is emulsified into spinning dope, the rotating motor (337) in the discharging part (33) is started to drive the rotating gear (335) to rotate, thereby driving the annular gear plate (334) to rotate, so as to change the position of the blocking plate (331) in the discharging cover (330); S6, after the spinning dope is poured into the inside of the storage bin body (301) through the cover through slot (3301) on the discharging cover (330), the rotating motor (337) is turned off, and the blocking plate (331) is quickly reset under the elastic force of the arc spring (332); IV. feeding stage S7, the electric heating rod (302) in the feeding part (30) is started to ensure the constant temperature inside the storage bin body (301), and the feeding screw (306) rotates with the continuously rotating feeding motor (305), so as to send the spinning dope into the inside of the double helix stirring shaft (4); V. dope melting stage S8, the two screws in the double helix stirring shaft (4) compress the spinning dope during rotation, push it forward to improve the temperature of the spinning dope and make it melt; VI. extrusion stage S9, the double helix stirring shaft (4) transports the melted spinning dope into the inside of the extrusion part (5), and the melted spinning dope is extruded from the lower shower after being pressed by the upper injector in the extrusion part (5), thereby forming a fine wire; VII. winding stage S10, the extruded wire is cooled in the cooling pool through the conveying traction device, then a plurality of wires are passed through the buncher to form a wire, and then the wire is stretched through the stretching equipment, and finally the wire is wound into a spool through the winding equipment, so as to complete the preparation of the ultra-high molecular weight polyethylene fiber.

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