CN115852504B - Multistage drafting method and device for ultra-high molecular weight polyethylene fiber - Google Patents
Multistage drafting method and device for ultra-high molecular weight polyethylene fiber Download PDFInfo
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- CN115852504B CN115852504B CN202211491778.8A CN202211491778A CN115852504B CN 115852504 B CN115852504 B CN 115852504B CN 202211491778 A CN202211491778 A CN 202211491778A CN 115852504 B CN115852504 B CN 115852504B
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- 239000000835 fiber Substances 0.000 title claims abstract description 100
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 title claims abstract description 28
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title abstract description 22
- 238000010438 heat treatment Methods 0.000 claims abstract description 61
- 238000001125 extrusion Methods 0.000 claims abstract description 50
- 230000006835 compression Effects 0.000 claims abstract description 33
- 238000007906 compression Methods 0.000 claims abstract description 33
- 238000009434 installation Methods 0.000 claims abstract description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 10
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 8
- 230000035515 penetration Effects 0.000 claims description 4
- 238000010030 laminating Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 description 9
- 238000009413 insulation Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
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- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000007380 fibre production Methods 0.000 description 1
- 230000005251 gamma ray Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The invention relates to a multistage drafting method and a multistage drafting device for ultra-high molecular weight polyethylene fibers, which comprise a machine body, a heating structure, a fine adjustment structure and an additional installation structure, wherein a feeding bin is arranged on one side of the upper end of the machine body, a fiber conveying pipeline is erected in the middle of the inner side of the feeding bin, the heating structure is arranged in the middle of the lower end of the machine body, and a lower roller structure is erected in the middle of the machine body. The multistage drafting method and the multistage drafting device for the ultra-high molecular weight polyethylene fiber are characterized in that the whole fine tuning structure is used as a structure for adjusting the distance between a lower extrusion die and an upper extrusion die, a limit head is driven to move downwards along an arc-shaped groove under the driving force of a hydraulic rod, meanwhile, a compression spring is extruded to shrink inwards, the limit head is retracted, the limit head is separated from the arc-shaped groove, a gear is arranged in a fixed box, the gear is sequentially distributed from bottom to top, and after the hydraulic rod stops pushing, the compression spring is retracted, the limit head is driven to be plugged into the arc-shaped groove, and limit protection is carried out on a shaft.
Description
Technical Field
The invention relates to the technical field of ultra-high molecular weight polyethylene fiber production, in particular to a multi-stage drafting method and a device for ultra-high molecular weight polyethylene fiber.
Background
The ultra-high molecular weight polyethylene fiber, also called as high-strength high-modulus polyethylene fiber, is the fiber with the highest specific strength and specific modulus in the world at present, and the polyethylene fiber spun from polyethylene with the molecular weight of 100 ten thousand to 500 ten thousand has high specific strength and high specific modulus. The specific strength is more than ten times of that of the steel wire with the same section, the specific modulus is only inferior to that of special carbon fiber, and the performance requirement of the strength and elongation test on the strength tester is much higher than that of the general fiber, and the whole steel wire has high specific strength and high specific modulus. The specific strength is more than ten times of that of the steel wire with the same section, the specific modulus is only inferior to that of special carbon fiber, the fiber density is low, the density is 0.97-0.98g/cm < 3 >, the steel wire can float on the water surface, the breaking elongation is low, the breaking work is large, and the steel wire has strong energy absorbing capacity, so that the steel wire has the characteristics of outstanding impact resistance and cutting resistance, ultraviolet radiation resistance, neutron and gamma ray resistance, high specific energy absorption, low dielectric constant, high electromagnetic wave transmittance, chemical corrosion resistance, abrasion resistance, long flex life and the like, and the ultra-high molecular weight polyethylene fiber is generally pulled and stretched by adopting a heating and stretching device in the production process.
In the existing drawing device, in the drawing process, the internal heat energy is mutually interfered, so that drawing crystals are inconsistent in the hot drawing process, in the multi-stage drawing process, the distance between an upper die and a lower die needs to be manually fine-adjusted when the upper die and the lower die are closed, certain deviation can occur, and the drawing effect is not ideal.
Disclosure of Invention
The invention aims to provide a multistage drawing method and device for ultra-high molecular weight polyethylene fibers, which are used for solving the problems that in the prior art, multistage processing is required in the drawing process, internal heat energy is mutually interfered, so that drawing crystals are inconsistent in the hot drawing process, and in the multistage drawing process, the distance between an upper die and a lower die needs to be manually fine-adjusted during die assembly, a certain deviation possibly occurs, and the drawing effect is not ideal.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a multistage drafting method of ultra-high molecular weight polyethylene fibre and device, includes organism, heating structure, fine setting structure and installs the structure additional, the upper end one side of organism is provided with the feeding storehouse on the premise, and the inboard middle part in feeding storehouse is erect the fibre pipeline, the lower extreme mid-mounting of organism has the heating structure, the middle part of organism has erect the lower roll structure, and an upper end side frame of lower roll structure is equipped with the roller structure, the fine setting structure is installed to the end of roller structure, the fine setting structure is including fixed box, connector, fastening bolt, hydraulic stem, pedestal, sealing washer, linking seat, linking head, arc recess, sleeve, compression spring, fixed pin and spacing head, and the one end department of fixed box is fixed with the connector, the inner wall middle part threaded connection of connector has fastening bolt, the hydraulic stem is installed to the other end of connector, and the one end that the hydraulic stem kept away from the connector is provided with the pedestal, the inner wall laminating of pedestal has the sealing washer, one side of hydraulic stem is connected with the linking head, and the one end that the sleeve kept away from the hydraulic stem is connected with the fine setting structure, the inner wall that the sleeve has the compression sleeve, the compression sleeve has the compression spring, the other end is equipped with the centre of a circle of a side of a circle of a recess, the fixed part is fixed at one side of the compression sleeve, the fixed end of the compression sleeve has the compression sleeve.
Further, the limiting head is in elastic connection with the hydraulic rod through the compression spring, and the limiting head is attached along the inner wall of the arc-shaped groove.
Further, one end of the inside of the fiber conveying pipeline is connected with a fiber penetrating hole, and the inner wall of the fiber penetrating hole is penetrated with fiber tows.
Further, an additional structure is arranged at the other end of the fiber conveying pipeline.
Further, the additional installation structure comprises a connector, a fastener and a reinforcing plate.
Further, the both ends of connector are fixed with the fastener, and the reinforcing plate is installed to the connector one side that is close to the fastener.
Further, the lower roller structure comprises a bottom roller and a lower extrusion die, and the outer wall of the bottom roller is uniformly sleeved with the lower extrusion die.
Further, the upper roller structure comprises an upper roller and an upper extrusion die, and the outer wall of the upper roller is uniformly sleeved with the upper extrusion die.
Further, the heating structure is including base, heating cabinet, connecting roller, heat insulating board, brace and heater, and the upper end of base is fixed with the heating cabinet, the middle part of heating cabinet is overlapped and is tied with the connecting roller, and the heating cabinet is fixed with the heat insulating board along one side of connecting roller, the inner wall side of heating cabinet is fixed with the heat insulating board, and the lower extreme of heating cabinet is fixed with the brace.
Further, the specific steps are as follows:
step one, penetrating fiber tows into a fiber conveying pipeline along a fiber penetrating hole, penetrating the fiber tows into a connector along the fiber conveying pipeline end, and enabling the fiber tows to be lapped on a lower extrusion die on a bottom roller at the leftmost end and downwards lapped on a connecting roller in a heating box;
step two, penetrating the fiber bundle wire between a lower extrusion die and an upper extrusion die of the middle layer, continuously pulling down the fiber bundle wire to another connecting roller which is arranged in the heating box for 4 times until the fiber bundle wire is arranged in a fiber conveying pipeline at the right end and is discharged along the joint;
step three, heating the inside of a heating box through a heater, wherein the heating box is divided into 5 independent spaces through heat insulation boards, and the temperatures of the 5 independent spaces in the heating box from left to right are 134 ℃, 137 ℃, 140 ℃, 143 ℃ and 146 ℃ in sequence;
step four, starting a hydraulic rod, wherein the hydraulic rod downwards determines to drive an upper roller in a shaft bracket to downwards move, the distance between a lower extrusion die and an upper extrusion die is reduced, a limit head is driven to downwards move along an arc-shaped groove under the driving force of the hydraulic rod, meanwhile, a compression spring is extruded, the compression spring inwards contracts to meet the requirement that the limit head retreats and breaks away from the arc-shaped groove, 7 gears are arranged in a fixed box and sequentially form arc-shaped grooves distributed from bottom to top, and when the hydraulic rod stops pushing, the compression spring retreats to drive the limit head to be plugged into the arc-shaped groove for limit protection of the shaft bracket;
step five, sequentially adjusting gears of the fine adjustment structures, wherein the gears of the 4 fine adjustment structures are sequentially 4, 3, 2 and 1 from left, simultaneously pulling fiber bundles, and extruding and stretching the fiber bundles through a lower extrusion die and an upper extrusion die after the fiber bundles are heated by a heating box, and drawing and stretching the fiber bundles layer by layer until the fiber bundles are discharged from a connector at the right end.
Compared with the prior art, the invention has the following beneficial effects:
the whole fine tuning structure is used for adjusting the distance between the lower extrusion die and the upper extrusion die, the limit head is driven to move downwards along the arc-shaped groove under the driving force of the hydraulic rod, meanwhile, the compression spring is extruded, the compression spring is contracted inwards, the limit head is retracted, the limit head is separated from the arc-shaped groove, a gear is arranged in the fixing box, the arc-shaped grooves distributed downwards and upwards are sequentially formed in the fixing box, after the hydraulic rod stops pushing, the compression spring is retracted, the limit head is driven to be plugged into the arc-shaped groove, the shaft frame is subjected to limit protection, the hydraulic rod is additionally arranged in the fixing box through the connector and the fastening bolt, meanwhile, the auxiliary pulling structure is formed by the sleeve, the compression spring, the fixing pin and the limit head, and the sleeve is fixedly connected with one side of the hydraulic rod through the connector, the stability of the whole structure is met, meanwhile, the gap between the connecting seat and the upper roller is reduced for guaranteeing that the upper roller is effectively placed into the shaft frame, and the connecting seat is sealed and connected with the upper roller is guaranteed, and the consistency of the whole structure is guaranteed.
The whole fiber delivery pipeline adopts and installs structure and feeding storehouse department additional and be connected, and the junction is provided with fastener and reinforcing plate, and the fastener can satisfy and carry out the buckle between fiber delivery pipeline's tip and the feeding storehouse and be connected, and convenient to use person overhauls and looks over, and the junction is provided with the reinforcing plate simultaneously, strengthens installing the joint strength between structure and the feeding storehouse additional, guarantees overall structure's uniformity, and the design of fiber penetration hole of fiber delivery pipeline left end department plays preliminary to carry out the effect of guiding constraint to the fiber bundle silk simultaneously, guarantees the tensile demand of follow-up traction.
The outer wall evenly distributed of this lower extrusion die along the backing roll has a plurality ofly, and this lower extrusion die's cross-section is sunken form and distributes, can be fine with last roller structure mutual match, is provided with roller and last extrusion die in the last roller structure, and this upward extrusion die has a plurality ofly along last roller outer wall evenly distributed, and this cross-section of going up roller structure is protruding form and distributes, and when the fibre bundle silk penetrated, takes when the concave part in extrusion die down, through last extrusion die and lower extrusion die between the compound die, reaches to calender the fibre bundle silk to satisfy the tensile hot working demand of follow-up fibre bundle silk traction.
The whole heating structure adopts base and a supporting table to be connected with the organism, the stability of the whole connection structure is guaranteed, adopt welded means to be connected between base and the supporting table, the whole connection strength is guaranteed to be high, and the steam generator is stable in structure, when needs heat the heating cabinet, can adopt the heater to heat in the heating cabinet, the heating cabinet passes through the heat insulating board to be split into 5 independent spaces, the temperature in 5 independent spaces in the left to right heating cabinet is 134 ℃, 137 ℃, 140 ℃, 143 ℃ and 146 ℃ in proper order, the upper portion of this heating cabinet adopts seal structure, only remain a hole that supplies the fibre bundle silk to penetrate and pass out, adopt the heat insulating board to carry out temperature protection between heating cabinet (402) simultaneously, reduce the temperature interact between the heating cabinet in 5 independent spaces, satisfy whole processing demand.
Drawings
FIG. 1 is a schematic diagram showing the internal structure of the multistage drawing method and apparatus for ultra-high molecular weight polyethylene fiber according to the present invention;
FIG. 2 is a schematic diagram showing the heating structure of a multistage drawing method and apparatus for ultra-high molecular weight polyethylene fiber according to the present invention;
FIG. 3 is a schematic diagram showing a connection structure between a lower roll structure and an upper roll structure of a multistage drafting method and apparatus for ultra-high molecular weight polyethylene fiber according to the present invention;
FIG. 4 is a schematic view of the structure of a fiber conveying pipeline of a multi-stage drawing method and apparatus for ultra-high molecular weight polyethylene fiber according to the present invention;
FIG. 5 is a schematic view of the structure of the multi-stage drawing method and apparatus for ultra-high molecular weight polyethylene fiber according to the present invention, which is partially enlarged at A in FIG. 1;
FIG. 6 is a schematic diagram showing the structure of a multistage drawing method and apparatus for ultra-high molecular weight polyethylene fiber according to the present invention;
fig. 7 is a schematic view of a partially enlarged structure at B in fig. 6 of a multistage drawing method and apparatus for ultra-high molecular weight polyethylene fiber according to the present invention.
In the figure: 1. a body; 2. a feeding bin; 3. a fiber delivery conduit; 4. a heating structure; 401. a base; 402. a heating box; 403. a connecting roller; 404. a heat insulating plate; 405. a supporting table; 406. a heater; 5. a fiber bundle filament; 6. a lower roller structure; 601. a bottom roller; 602. a lower extrusion die; 7. fine tuning the structure; 701. a fixed box; 702. a connector; 703. a fastening bolt; 704. a hydraulic rod; 705. a shaft bracket; 706. a seal ring; 707. a connecting seat; 708. an adaptor; 709. an arc-shaped groove; 710. a sleeve; 711. a compression spring; 712. a fixing pin; 713. a positioning head; 8. an upper roller structure; 801. an upper roller; 802. an upper extrusion die; 9. a fiber penetration hole; 10. adding a structure; 1001. a connector; 1002. a fastener; 1003. reinforcing plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-5, the present invention provides a technical solution: the multistage drawing method and device for the ultra-high molecular weight polyethylene fiber comprises a machine body 1, a heating structure 4, a fine adjustment structure 7 and an additional installation structure 10, and is characterized in that: a feeding bin 2 is arranged on one side of the upper end of the machine body 1, a fiber conveying pipeline 3 is erected in the middle of the inner side of the feeding bin 2, a heating structure 4 is arranged in the middle of the lower end of the machine body 1, a lower roller structure 6 is erected in the middle of the machine body 1, an upper roller structure 8 is arranged on one side of the upper end of the lower roller structure 6, a fine adjustment structure 7 is arranged at the tail end of the upper roller structure 8, the fine adjustment structure 7 comprises a fixing box 701, a connector 702, a fastening bolt 703, a hydraulic rod 704, a shaft bracket 705, a sealing ring 706, a connecting seat 707, a connecting head 708, an arc-shaped groove 709, a sleeve 710, a compression spring 711, a fixing pin 712 and a limiting head 713, a connector 702 is fixedly arranged at one end of the fixing box 701, a fastening bolt 703 is connected to the middle thread of the inner wall of the connector 702, a hydraulic rod 704 is arranged at the other end of the connector 702, and one end of the hydraulic rod 704 far from the connector 702 is provided with a shaft bracket 705, the inner wall of the shaft bracket 705 is attached with a sealing ring 706, the front end of the shaft bracket 705 along the sealing ring 706 is fixed with a connecting seat 707, one side of the hydraulic rod 704 is connected with a connecting head 708, one end of the connecting head 708 far away from the hydraulic rod 704 is connected with a sleeve 710, the inner wall of the sleeve 710 is sleeved with a compression spring 711, the other end of the compression spring 711 is fixed with a limiting head 713, the center of the middle part of the limiting head 713 is sleeved with a fixing pin 712, one side of the lower end of the fixing box 701 is provided with an arc-shaped groove 709, the limiting head 713 is elastically connected with the hydraulic rod 704 through the compression spring 711, the limiting head 713 is attached along the inner wall of the arc-shaped groove 709, the whole fine tuning structure 7 is used as a structure for adjusting the interval between the lower extrusion die 602 and the upper extrusion die 802, the limiting head 713 is driven to move downwards along the arc-shaped groove 709 under the driving force of the hydraulic rod 704, meanwhile the compression spring 711 is extruded, the compression spring 711 is contracted inwards, the hydraulic rod 704 is retracted from the arc-shaped groove 709 to be separated from the arc-shaped groove 709, 7 gears are arranged in the fixing box 701, the arc-shaped groove 709 is sequentially distributed from bottom to top, after the hydraulic rod 704 stops pushing, the compression spring 711 is retracted to drive the limiting head 713 to be plugged into the arc-shaped groove 709, limiting protection is carried out on the upper roller 801, the hydraulic rod 704 is additionally arranged in the fixing box 701 through the connecting head 702 and the fastening bolt 703, meanwhile, in order to ensure that when the hydraulic rod 704 stops moving, the pulling width of the fiber bundle wires 5 can be effectively controlled, an auxiliary pulling structure is formed by the sleeve 710, the compression spring 711, the fixing pin 712 and the limiting head 713, the sleeve 710 is fixedly connected with one side of the hydraulic rod 704 through the connecting head 708, the stability of the whole structure is met, and meanwhile, the sealing ring 706 and the connecting seat 707 are arranged to carry out sealing connection on the upper roller 801, gaps between the connecting positions are reduced, and the consistency of the whole structure is ensured.
The inside one end of fibre pipeline 3 is connected with fibre access hole 9, and the inner wall of fibre access hole 9 penetrates there is fibre bundle silk 5, install additional structure 10 the other end of fibre pipeline 3, additional structure 10 is including connector 1001, fastener 1002 and reinforcing plate 1003, the both ends of connector 1001 are fixed with fastener 1002, and the reinforcing plate 1003 is installed to one side that connector 1001 is close to fastener 1002, whole fibre pipeline 3 adopts additional structure 10 and feeding storehouse 2 department to be connected, the junction is provided with fastener 1002 and reinforcing plate 1003, fastener 1002 can satisfy the end of fibre pipeline 3 and carry out the buckle between feeding storehouse 2 and be connected, the user's maintenance of being convenient for is looked over, the junction is provided with reinforcing plate 1003 simultaneously, reinforce the joint strength between additional structure 10 and the feeding storehouse 2, guarantee overall structure's uniformity, fibre access hole 9's in fibre pipeline 3 left end department design simultaneously plays preliminary to carry out the effect of guiding constraint to fibre bundle silk 5, guarantee the demand of follow-up traction.
The lower roller structure 6 comprises a bottom roller 601 and a lower extrusion die 602, the outer wall of the bottom roller 601 is uniformly sleeved with the lower extrusion die 602, the bottom roller 601 and the lower extrusion die 602 are arranged in the lower roller structure 6, the lower extrusion die 602 is uniformly distributed along the outer wall of the bottom roller 601, the cross section of the lower extrusion die 602 is concavely distributed, and the lower extrusion die 602 can be well matched with the upper roller structure 8.
The upper roller structure 8 comprises an upper roller 801 and an upper extrusion die 802, the outer wall of the upper roller 801 is uniformly sleeved with the upper extrusion die 802, the upper roller 801 and the upper extrusion die 802 are arranged in the upper roller structure 8, the upper extrusion die 802 is uniformly distributed along the outer wall of the upper roller 801, the cross section of the upper roller structure 8 is convexly distributed, when the fiber bundle filaments 5 penetrate into the concave part in the lower extrusion die 602, the fiber bundle filaments 5 are calendered through the die clamping between the upper extrusion die 802 and the lower extrusion die 602, and therefore the thermal processing requirement of traction and stretching of the follow-up fiber bundle filaments 5 is met.
The heating structure 4 comprises a base 401, a heating box 402, a connecting roller 403, a heat insulation board 404, a supporting table 405 and a heater 406, wherein the heating box 402 is fixed at the upper end of the base 401, the connecting roller 403 is sleeved at the middle part of the heating box 402, the heat insulation board 404 is fixed at one side of the heating box 402 along the connecting roller 403, the heat insulation board 404 is fixed at the inner wall side of the heating box 402, the supporting table 405 is fixed at the lower end of the heating box 402, the whole heating structure 4 is connected with the machine body 1 by the base 401 and the supporting table 405, the stability of the whole connecting structure is ensured, the base 401 and the supporting table 405 are connected by adopting a welding means, the whole connecting strength is ensured, the structure is stable, when the heating box 402 needs to be heated, the heating box 402 can be divided into 5 independent spaces by the heat insulation board 404, the temperatures of the 5 independent spaces in the heating box 402 from left to right are 134 ℃, 137 ℃, 140 ℃ and 146 ℃ in sequence, only one hole for fiber bundles 5 to penetrate and pass through is reserved at the upper part of the heating box 402, meanwhile, the temperature of the whole heating box 402 is protected by adopting the heat insulation board, and the two independent spaces between the two independent spaces are reduced, and the two requirements of the two independent spaces are met.
The working principle of the embodiment is as follows: the multistage drafting method and device for the ultra-high molecular weight polyethylene fiber comprises the following specific steps when in use:
step one, penetrating fiber tows 5 into a fiber conveying pipeline 3 along a fiber penetrating hole 9, penetrating the fiber tows 5 to a connector 1001 along the end of the fiber conveying pipeline 3, and taking the fiber tows 5 on a lower extrusion die 602 on a bottom roller 601 at the leftmost end, wherein the fiber tows 5 are taken down on a connecting roller 403 in a heating box 402;
step two, the fiber bundle filaments 5 are penetrated between the lower extrusion die 602 and the upper extrusion die 802 of the middle layer at this time, continuously pulled down to the other connecting roller 403 which is arranged in the heating box 402 for 4 times until being arranged in the fiber conveying pipeline 3 at the right end and discharged along the joint 1001;
step three, heating the inside of the heating box 402 by a heater 406, wherein the heating box 402 is divided into 5 independent spaces by a heat insulation plate 404, and the temperatures of the 5 independent spaces in the heating box 402 are 134 ℃, 137 ℃, 140 ℃, 143 ℃ and 146 ℃ from left to right in sequence;
step four, starting a hydraulic rod 704, wherein the hydraulic rod 704 is fixed downwards to drive an upper roller 801 in a shaft frame 705 to move downwards, the distance between a lower extrusion die 602 and the upper extrusion die 802 is reduced, a limiting head 713 is driven to move downwards along an arc-shaped groove 709 under the driving force of the hydraulic rod 704, meanwhile, a compression spring 711 is extruded, the compression spring 711 is contracted inwards to meet the requirement that the limiting head 713 retreats and is separated from the arc-shaped groove 709, 7 gears are arranged in a fixed box 701 and sequentially form the arc-shaped groove 709 distributed from bottom to top, and after the hydraulic rod 704 stops pushing, the compression spring 711 retreats to drive the limiting head 713 to be plugged into the arc-shaped groove 709, so that the shaft frame 705 is subjected to limiting protection;
step five, sequentially adjusting the gear positions of the fine adjustment structures 7, wherein the gear positions of the 4 fine adjustment structures 7 are sequentially 4, 3, 2 and 1 from left, simultaneously pulling the fiber bundle filaments 5, and after the fiber bundle filaments 5 are heated by the heating box 402, extruding and stretching are performed through the lower extrusion die 602 and the upper extrusion die 802, and the fiber bundle filaments are pulled and stretched layer by layer until being discharged from the connector 1001 at the right end.
Although the present invention has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present invention.
Claims (8)
1. The utility model provides a multistage drafting device of ultra-high molecular weight polyethylene fibre, includes organism (1), heating structure (4), fine setting structure (7) and installs structure (10) additional, its characterized in that: the utility model provides a fiber conveying pipeline (3) is set up in the inboard middle part that feeding storehouse (2) is assumed to upper end one side of organism (1), and feeding storehouse (2), the lower extreme mid-mounting of organism (1) has heating structure (4), the middle part of organism (1) has set up lower roll structure (6), and an upper end side bearer of lower roll structure (6) is equipped with roller structure (8), fine setting structure (7) are installed to the end of roller structure (8), fine setting structure (7) are including fixed box (701), connector (702), fastening bolt (703), hydraulic rod (704), pedestal (705), sealing washer (706), linking seat (707), linking head (708), arc recess (709), sleeve (710), compression spring (711), fixed pin (712) and spacing head (713), and the one end department of fixed box (701) is fixed with connector (702), the inner wall middle part threaded connection of connector (702) has fastening bolt (703), hydraulic rod (704) are installed to the other end of connector (702), and one end that the connector (704) kept away from pedestal (706) is provided with sealing washer (706), and pedestal (705) are fixed with along the front end of sealing washer (706) and link up seat (707), one side of hydraulic stem (704) is connected with adapter (708), and the one end that hydraulic stem (704) was kept away from to adapter (708) is connected with telescopic (710), the inner wall of telescopic (710) is hitched has compression spring (711), and the other end of compression spring (711) is fixed with limit head (713), the middle part centre of a circle department of limit head (713) is hitched and is had fixed pin (712), arc recess (709) have been seted up to lower extreme one side of fixed box (701), be elastic connection between limit head (713) and hydraulic stem (704) through compression spring (711), and the inner wall laminating of limit head (713) along arc recess (709).
2. The multi-stage drawing device for ultra-high molecular weight polyethylene fiber according to claim 1, wherein: one end of the inside of the fiber conveying pipeline (3) is connected with a fiber penetration hole (9), and the inner wall of the fiber penetration hole (9) is penetrated with a fiber bundle silk (5).
3. The multi-stage drawing device for ultra-high molecular weight polyethylene fiber according to claim 1, wherein: the other end of the fiber conveying pipeline (3) is provided with an installing structure (10).
4. A multi-stage drawing apparatus for ultra-high molecular weight polyethylene fiber according to claim 3, wherein: the additional installation structure (10) comprises a connector (1001), a fastener (1002) and a reinforcing plate (1003).
5. The multi-stage drawing apparatus for ultra-high molecular weight polyethylene fiber according to claim 4, wherein: the two ends of the connector (1001) are fixed with fasteners (1002), and a reinforcing plate (1003) is arranged on one side, close to the fasteners (1002), of the connector (1001).
6. The multi-stage drawing device for ultra-high molecular weight polyethylene fiber according to claim 1, wherein: the lower roller structure (6) comprises a bottom roller (601) and a lower extrusion die (602), and the outer wall of the bottom roller (601) is uniformly sleeved with the lower extrusion die (602).
7. The multi-stage drawing device for ultra-high molecular weight polyethylene fiber according to claim 1, wherein: the upper roller structure (8) comprises an upper roller (801) and an upper extrusion die (802), and the outer wall of the upper roller (801) is uniformly sleeved with the upper extrusion die (802).
8. The multi-stage drawing device for ultra-high molecular weight polyethylene fiber according to claim 1, wherein: heating structure (4) is including base (401), heating cabinet (402), connecting roller (403), heat insulating board (404), brace (405) and heater (406), and the upper end of base (401) is fixed with heating cabinet (402), the middle part of heating cabinet (402) is overlapped and is had connecting roller (403), and heating cabinet (402) are fixed with heat insulating board (404) along one side of connecting roller (403), the inner wall side of heating cabinet (402) is fixed with heat insulating board (404), and the lower extreme of heating cabinet (402) is fixed with brace (405).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211491778.8A CN115852504B (en) | 2022-11-25 | 2022-11-25 | Multistage drafting method and device for ultra-high molecular weight polyethylene fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211491778.8A CN115852504B (en) | 2022-11-25 | 2022-11-25 | Multistage drafting method and device for ultra-high molecular weight polyethylene fiber |
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| CN115852504A (en) | 2023-03-28 |
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