CN115262054B - Flame-retardant high-melt-strength polylactic acid composite fiber material and preparation method thereof - Google Patents

Flame-retardant high-melt-strength polylactic acid composite fiber material and preparation method thereof Download PDF

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Publication number
CN115262054B
CN115262054B CN202210784470.6A CN202210784470A CN115262054B CN 115262054 B CN115262054 B CN 115262054B CN 202210784470 A CN202210784470 A CN 202210784470A CN 115262054 B CN115262054 B CN 115262054B
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China
Prior art keywords
wire
core wire
guide
clamp
mandrel
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CN202210784470.6A
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CN115262054A (en
Inventor
刘伯林
吴祥
郭亚专
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Anhui Lianke New Materials Co.,Ltd.
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ANHUI LIANKE WATER-BASED MATERIAL TECHNOLOGY CO LTD
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Publication of CN115262054A publication Critical patent/CN115262054A/en
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    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/44—Yarns or threads characterised by the purpose for which they are designed
    • D02G3/443—Heat-resistant, fireproof or flame-retardant yarns or threads
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/36—Cored or coated yarns or threads
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Ropes Or Cables (AREA)

Abstract

The invention relates to the technical field of fibers and discloses a flame-retardant high-melt-strength polylactic acid composite fiber material and a preparation method thereof, wherein the flame-retardant high-melt-strength polylactic acid composite fiber material comprises a core wire and a plurality of covered wires spirally wound on the core wire, the covered wires are provided with a plurality of unwinding sections, the whole of the unwinding sections is arc-shaped, the distance between peak points of two adjacent unwinding sections is D, D is more than or equal to d+a, D is the diameter of the core wire, and a is the diameter of the covered wires; the peak point of the unwinding section refers to the position with the largest distance between the unwinding section and the core wire; the unwinding section can be filled in the gaps among the wire bodies when the wire bodies are in cross-shaped cross distribution.

Description

Flame-retardant high-melt-strength polylactic acid composite fiber material and preparation method thereof
Technical Field
The invention relates to the technical field of fiber materials, in particular to a flame-retardant high-melt-strength polylactic acid composite fiber material.
Background
Most of the flame-retardant high-melt-strength polylactic acid composite fibers in the prior art are extruded fibers, and the surface formed when the flame-retardant high-melt-strength polylactic acid composite fibers are distributed in a cross-shaped cross manner is uneven.
Disclosure of Invention
The invention provides a flame-retardant high-melt-strength polylactic acid composite fiber material, which solves the technical problem that the flame-retardant high-melt-strength polylactic acid composite fiber in the related art is inconvenient to use.
According to one aspect of the invention, a flame-retardant high-melt-strength polylactic acid composite fiber material is provided, and comprises a core wire and a plurality of spiral wrapping wires wound on the core wire, wherein the wrapping wires are provided with a plurality of unwinding sections, the whole of each unwinding section is arc-shaped, the distance between peak points of two adjacent unwinding sections is D, D is more than or equal to d+a, D is the diameter of the core wire, and a is the diameter of the wrapping wire; the peak point of the unwinding section refers to the position where the distance of the unwinding section from the core wire is the largest.
Further, the core wire and the wrapping wire are made of flame-retardant materials.
According to an aspect of the present invention, there is provided a processing apparatus for processing the above-described flame retardant high melt strength polylactic acid composite fiber material, comprising:
the first mechanism comprises a shell, a mandrel and a first unit arranged around the mandrel, wherein the mandrel is connected with a first rotary driving mechanism for driving the mandrel to rotate;
the first units comprise limiters and first sliders connected with the limiters, the limiters are used for limiting the first sliders to move along the radial direction of the mandrel only, the first sliders of the first units are hinged with a center seat through hinge pieces, the center of the center seat is rotationally connected with a first shaft, the first shaft is rotationally connected with one end of a first connecting piece, and the other end of the first connecting piece is fixedly connected with the mandrel;
the paying-off device is arranged on one side, far away from the mandrel, of the first mechanism and is used for paying off the covered wire and the core wire;
the first slider is connected with a wire guide, and the wire guide is provided with a wire connector for connecting the wrapping wire; a guide is arranged in the space between the wire guide and the center seat and is used for guiding a wire body consisting of a core wire and a covered wire out of the first mechanism;
the second mechanism comprises a machine base and a first sliding seat which is connected with the machine base in a sliding way, a first linear driving mechanism for driving the first sliding seat to linearly move is arranged on the machine base, a rotatable clamp is arranged on the first sliding seat, a wire body passes through the center of the clamp and can be clamped by the clamp, and the clamp is connected with a second rotary mechanism for driving the winding body to rotate.
The guide is a guide wheel, the center of the guide wheel is provided with a shaft which is rotationally connected with the shell, and the guide wheel is used for leading out the wire body from the gap of the first unit to the first mechanism.
The first rotary driving mechanism comprises a first gear connected with the mandrel, the first gear is meshed with a second gear, and the second gear is connected with the output end of the third motor.
The limiter is a sliding rail, and the first slider is a sliding block in sliding connection with the sliding rail.
The clamp is a chuck, and the chuck is connected with the output end of the second motor through a belt transmission mechanism or a gear transmission mechanism.
The first linear driving mechanism comprises a first screw pair, a nut of the first screw pair is connected with the first sliding seat, and a screw of the first screw pair is connected with the output end of the first motor.
According to one aspect of the present invention, there is provided a processing method for processing a flame retardant high melt strength polylactic acid composite fiber material, the following steps being performed by using one of the processing apparatuses described above:
step 101, fixing a core wire and one end of a covered wire, and then rotating the end of the fixed core wire to enable a section of the covered wire to be wound and covered on the core wire to form a wire body;
102, enabling a section of the wire body obtained in the step 101 to pass through a first machine body, guiding the wire body to a clamp through a guide, and clamping the wire body through the clamp;
step 103, starting the first linear driving mechanism to drive the first sliding seat to move to a side far away from the first mechanism, and synchronously starting the first rotary driving mechanism and the second rotary driving mechanism;
104, stopping the first rotary driving mechanism and the second rotary driving mechanism when the first linear driving mechanism is started to drive the first sliding seat to move towards the side close to the first mechanism;
step 105, repeating step 103 and step 104 until the wire body with the set length is processed.
The invention has the beneficial effects that:
the unwinding section can be filled in the gaps among the wire bodies when the wire bodies are in cross-shaped cross distribution, so that the flatness of the surface formed by the wire bodies can be improved, and the bonding degree of the surface formed by the wire bodies and other layers or materials can be improved when the surface formed by the wire bodies is compounded between other two layers of materials or when the surface formed by the wire bodies is compounded into other materials.
Drawings
FIG. 1 is a schematic structural view of a flame retardant high melt strength polylactic acid composite fiber material of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1 in accordance with the present invention;
FIG. 3 is a schematic structural view of an apparatus for processing a flame retardant high melt strength polylactic acid composite fiber material according to the present invention;
FIG. 4 is a schematic view of the first mechanism of the present invention;
FIG. 5 is a B-B cross-sectional view of FIG. 4 in accordance with the present invention;
FIG. 6 is a cross-sectional view of C-C of FIG. 4 in accordance with the present invention;
FIG. 7 is a schematic illustration of a second construction of the present invention;
FIG. 8 is a flow chart of a method of the present invention for processing a flame retardant high melt strength polylactic acid composite fiber material.
In the figure: core wire 10, envelope 11, unwind section 12, housing 101, mandrel 102, first unit 103, limiter 104, first slider 105, hinge 106, center mount 107, first shaft 108, first connector 109, wire guide 110, wire guide 111, first gear 112, second gear 113, third motor 114, winding mechanism 115, stand 201, first slider 202, first linear drive mechanism 203, clamp 204, second rotary mechanism 205.
Detailed Description
The subject matter described herein will now be discussed with reference to example embodiments. It should be appreciated that these embodiments are discussed only to enable a person skilled in the art to better understand and thereby achieve the subject matter described herein, and are not limiting of the scope, applicability, or examples set forth in the claims. Changes may be made in the function and arrangement of elements discussed without departing from the scope of the disclosure. Various examples may omit, replace, or add various procedures or components as desired. In addition, features described with respect to some examples may be combined in other examples as well.
Example 1
1-2, the flame-retardant high-melt-strength polylactic acid composite fiber material comprises a core wire 10 and a plurality of wrapping wires 11 spirally wound on the core wire 10, wherein the wrapping wires 11 are provided with a plurality of unwinding sections 12 on the core wire 10, the whole of each unwinding section 12 is arc-shaped, the distance between peak points of two adjacent unwinding sections 12 is D, D is more than or equal to d+a, D is the diameter of the core wire 10, and a is the diameter of the wrapping wire 11; the peak point of the unwinding section 12 refers to the position where the distance of the unwinding section 12 from the core wire 10 is maximum;
the unwinding section 12 can be filled in the gaps between the wire bodies when the wire bodies are in cross-shaped cross distribution, so that the flatness of the surface formed by the wire bodies can be improved, and the bonding degree of the surface formed by the wire bodies and other layers or materials can be improved when the surface formed by the wire bodies is compounded between other two layers or the surface formed by the wire bodies is compounded into other materials.
In the above-described embodiment of the present invention, the core wire 10 and the covered wire 11 are each made of a flame retardant material.
In one embodiment of the present invention, the material of the core wire 10 is metal and the material of the envelope 11 is high melt strength polylactic acid.
In one embodiment of the present invention, the material of the core wire 10 is high melt strength PP and the material of the envelope 11 is high melt strength polylactic acid.
As shown in fig. 3 to 7, in one embodiment of the present invention, there is provided an apparatus for processing the above-mentioned one flame retardant high melt strength polylactic acid composite fiber material, which comprises at least:
a first mechanism including a housing 101, a spindle 102, and a first unit 103 provided around the spindle 102, the spindle 102 being connected to a first rotation driving mechanism for driving rotation thereof;
the first units 103 comprise limiters 104 and first sliders 105 connected with the limiters 104, the limiters 104 are used for limiting the first sliders 105 to move along the radial direction of the mandrel 102 only, the first sliders 105 of the first units 103 are hinged with a center seat 107 through hinges 106, the center of the center seat 107 is rotationally connected with a first shaft 108, the first shaft 108 is rotationally connected with one end of a first connecting piece 109, and the other end of the first connecting piece 109 is fixedly connected with the mandrel 102;
a paying-off device which is arranged on one side of the first mechanism, which is far away from the mandrel 102, and is used for paying off the covered wire 11 and the core wire 10;
the first slider 105 is connected with a wire guide 110, and the wire guide 110 is provided with a wire connector 111 for connecting the covered wire 11; a guide is arranged in the space between the wire guide 110 and the center seat 107, and is used for guiding out a wire body formed by the core wire 10 and the wrapping wire 11 from a first mechanism;
in the above-described embodiment of the present invention, the vertical distance between the mandrel 102 and the axis of the first shaft 108 is greater than 0.
In one embodiment of the invention, the guide is a guide wheel, the center of which is provided with a shaft rotatably connected with the housing 101, the guide wheel is used for leading the wire body out of the first mechanism from the gap of the first unit 103;
in one embodiment of the invention, the guide is a ring through which the wire passes, the ring being coaxially disposed with the mandrel 102.
The second mechanism comprises a base 201 and a first sliding seat 202 which is connected with the base 201 in a sliding way, a first linear driving mechanism 203 for driving the first sliding seat 202 to linearly move is arranged on the base 201, a rotatable clamp 204 is arranged on the first sliding seat 202, a wire body passes through the center of the clamp 204 and can be clamped by the clamp 204, and the clamp 204 is connected with a second rotary mechanism 205 for driving the wire body to rotate;
in one embodiment of the invention, the first rotary drive mechanism comprises a first gear 112 connected to the spindle 102, the first gear 112 being in mesh with a second gear 113, the second gear 113 being connected to the output of a third motor 114.
In one embodiment of the invention, the limiter 104 is a slide rail and the first slider 105 is a slider slidingly coupled to the slide rail.
In one embodiment of the invention, the limiter 104 is a piston cylinder and the first slider 105 is a piston slidingly connected to the piston cylinder.
In one embodiment of the invention, the second mechanism further comprises a winding mechanism 115 for winding up the wire body.
In one embodiment of the present invention, the first slider 202 is connected to the base 201 by a first sliding rail.
In one embodiment of the present invention, the first linear drive mechanism 203 is a pneumatic cylinder or a hydraulic cylinder or an electric push rod or a linear motor connected to the first carriage 202.
In one embodiment of the present invention, the first linear driving mechanism 203 includes a first screw pair, a nut of the first screw pair is connected to the first slider 202, and a screw of the first screw pair is connected to an output end of the first motor.
In one embodiment of the invention, the clamp 204 is a chuck that is coupled to the output of the second motor via a belt or gear drive.
With this form of clamp 204, the movement of the entire mechanism should be intermittent, i.e. the clamp 204 needs to be released from the clamp when the first slide 202 moves to the end of travel, then the first slide 202 is moved to the start of travel, the wire is clamped again, and the rest of the mechanism should be deactivated during the movement of the first slide 202 to the start of travel.
For the above embodiment of the present invention, the second rotary driving mechanism drives the clamp 204 to clamp the rotation of the wire body, so that the covered wire 11 is continuously wound on the core wire 10, the first rotary power source drives the core shaft 102 to rotate during the winding process, the core shaft 102 drives the first shaft 108 to rotate around the core shaft 102, then drives the center seat 107 to revolve around the core shaft 102, the revolving center seat 107 can drive each first slider 105 to periodically reciprocate through the linkage of the hinge 106, and the plurality of first sliders 105 alternately reach the maximum stroke during the movement;
the first slider 105, when it reaches the maximum stroke, will drive the payout device to pay out more wire 11 (the wire 11 to which the wire guide 110 is connected to the first slider 105), and then when the first slider 105 returns to the start of the stroke, will drive the wire guide 111 to reset, at which time the paid out wire 11 is in a relaxed free state due to the first slider 105 moving outwards to the maximum stroke, which wire 11 will produce a unwinding section 12 as winding proceeds (at which time the remaining wire 11 and core 10 continue to travel).
As shown in fig. 8, based on the above-mentioned apparatus, the present invention provides a method for processing the above-mentioned flame retardant high melt strength polylactic acid composite fiber material, comprising the steps of:
step 101, fixing a core wire 10 and one end of a covered wire 11, and then rotating the end of the fixed core wire 10 to enable a section of the covered wire 11 to be wound and covered on the core wire 10 to form a wire body;
102, a section of the wire body obtained in the step 101 passes through a first machine body, is guided to a clamp 204 through a guide, and is clamped by the clamp 204;
step 103, starting the first linear driving mechanism 203 to drive the first sliding seat 202 to move to the side far away from the first mechanism, and synchronously starting the first rotary driving mechanism and the second rotary driving mechanism;
step 104, when the first linear driving mechanism 203 is started to drive the first sliding seat 202 to move towards the side close to the first mechanism, stopping the first rotary driving mechanism and the second rotary driving mechanism;
step 105, repeating step 103 and step 104 until the wire body with the set length is processed.
The embodiment of the present embodiment has been described above with reference to the accompanying drawings, but the embodiment is not limited to the above-described specific implementation, which is only illustrative and not restrictive, and many forms can be made by those of ordinary skill in the art without departing from the spirit of the embodiment and the scope of the protection of the claims, which fall within the protection of the embodiment.

Claims (7)

1. The processing equipment is characterized by being used for processing a flame-retardant high-melt-strength polylactic acid composite fiber material, wherein the flame-retardant high-melt-strength polylactic acid composite fiber material comprises a core wire and a plurality of wrapping wires spirally wound on the core wire, a plurality of unwinding sections are arranged on the core wire, the whole of each unwinding section is arc-shaped, the distance between peak points of two adjacent unwinding sections is D, D is more than or equal to d+a, D is the diameter of the core wire, and a is the diameter of the wrapping wire; the peak point of the unwinding section refers to the position with the largest distance between the unwinding section and the core wire; the core wire and the covered wire are made of flame-retardant materials;
the processing apparatus includes:
the first mechanism comprises a shell, a mandrel and a first unit arranged around the mandrel, wherein the mandrel is connected with a first rotary driving mechanism for driving the mandrel to rotate;
the first units comprise limiters and first sliders connected with the limiters, the limiters are used for limiting the first sliders to move along the radial direction of the mandrel only, the first sliders of the first units are hinged with a center seat through hinge pieces, the center of the center seat is rotationally connected with a first shaft, the first shaft is rotationally connected with one end of a first connecting piece, and the other end of the first connecting piece is fixedly connected with the mandrel;
the paying-off device is arranged on one side, far away from the mandrel, of the first mechanism and is used for paying off the covered wire and the core wire;
the first slider is connected with a wire guide, and the wire guide is provided with a wire connector for connecting the wrapping wire; a guide is arranged in the space between the wire guide and the center seat and is used for guiding a wire body consisting of a core wire and a covered wire out of the first mechanism;
the second mechanism comprises a machine base and a first sliding seat which is connected with the machine base in a sliding way, a first linear driving mechanism for driving the first sliding seat to linearly move is arranged on the machine base, a rotatable clamp is arranged on the first sliding seat, a wire body passes through the center of the clamp and can be clamped by the clamp, and the clamp is connected with a second rotary mechanism for driving the winding body to rotate.
2. A processing apparatus according to claim 1, wherein the guide is a guide wheel, the center of which is provided with a shaft rotatably connected to the housing, the guide wheel being adapted to guide the wire from the gap of the first unit out of the first mechanism.
3. A processing apparatus according to claim 1, wherein the first rotary drive mechanism comprises a first gear coupled to the spindle, the first gear being in mesh with a second gear, the second gear being coupled to the output of the third motor.
4. A processing apparatus according to claim 1, wherein the limiter is a slide rail and the first slider is a slider slidably coupled to the slide rail.
5. A processing apparatus according to claim 1, wherein the clamp is a chuck, the chuck being connected to the output of the second motor by a belt or gear drive.
6. A processing apparatus according to claim 1, wherein the first linear drive mechanism comprises a first screw pair, a nut of the first screw pair being connected to the first slide, a screw of the first screw pair being connected to an output of the first motor.
7. A processing method, characterized in that it uses a processing device according to claim 1 to carry out the following steps:
step 101, fixing a core wire and one end of a covered wire, and then rotating the end of the fixed core wire to enable a section of the covered wire to be wound and covered on the core wire to form a wire body;
102, enabling a section of the wire body obtained in the step 101 to pass through a first machine body, guiding the wire body to a clamp through a guide, and clamping the wire body through the clamp;
step 103, starting the first linear driving mechanism to drive the first sliding seat to move to the side far away from the first mechanism, and synchronously starting the first rotary driving mechanism and the second rotary driving mechanism;
104, stopping the first rotary driving mechanism and the second rotary driving mechanism when the first linear driving mechanism is started to drive the first sliding seat to move towards the side close to the first mechanism;
step 105, repeating step 103 and step 104 until the wire body with the set length is processed.
CN202210784470.6A 2022-07-05 2022-07-05 Flame-retardant high-melt-strength polylactic acid composite fiber material and preparation method thereof Active CN115262054B (en)

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CN202210784470.6A CN115262054B (en) 2022-07-05 2022-07-05 Flame-retardant high-melt-strength polylactic acid composite fiber material and preparation method thereof

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CN202210784470.6A CN115262054B (en) 2022-07-05 2022-07-05 Flame-retardant high-melt-strength polylactic acid composite fiber material and preparation method thereof

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CN115262054B true CN115262054B (en) 2024-02-09

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1036865A1 (en) * 1999-03-15 2000-09-20 Takasago International Corporation Biodegradable complex fiber and method for producing the same
CN110042559A (en) * 2019-05-27 2019-07-23 安徽正美线业科技有限责任公司 The corrosion-resistant seam envelope curve of one kind and its production technology
CN110629343A (en) * 2019-09-26 2019-12-31 浙江力达现代纺织有限公司 Anti-lint-shedding chenille yarn and production process thereof
CN211005789U (en) * 2019-09-26 2020-07-14 苏州锦祥纺织染整有限公司 High-twist dense yarn covering structure
CN112481763A (en) * 2020-11-13 2021-03-12 广东前进牛仔布有限公司 Novel elastic yarn and manufacturing method thereof and fabric
CN112663194A (en) * 2020-12-11 2021-04-16 淮安金润印染有限公司 Yarn with good flame retardance
CN113445162A (en) * 2021-07-21 2021-09-28 张雪 Preparation device and preparation method of auxetic composite yarn
CN216006156U (en) * 2021-09-17 2022-03-11 吴江市九鑫纺织有限公司 High-strength low-elasticity polyester yarn

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1036865A1 (en) * 1999-03-15 2000-09-20 Takasago International Corporation Biodegradable complex fiber and method for producing the same
CN110042559A (en) * 2019-05-27 2019-07-23 安徽正美线业科技有限责任公司 The corrosion-resistant seam envelope curve of one kind and its production technology
CN110629343A (en) * 2019-09-26 2019-12-31 浙江力达现代纺织有限公司 Anti-lint-shedding chenille yarn and production process thereof
CN211005789U (en) * 2019-09-26 2020-07-14 苏州锦祥纺织染整有限公司 High-twist dense yarn covering structure
CN112481763A (en) * 2020-11-13 2021-03-12 广东前进牛仔布有限公司 Novel elastic yarn and manufacturing method thereof and fabric
CN112663194A (en) * 2020-12-11 2021-04-16 淮安金润印染有限公司 Yarn with good flame retardance
CN113445162A (en) * 2021-07-21 2021-09-28 张雪 Preparation device and preparation method of auxetic composite yarn
CN216006156U (en) * 2021-09-17 2022-03-11 吴江市九鑫纺织有限公司 High-strength low-elasticity polyester yarn

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Address after: 239200 area B, Laian industrial new area, Chuzhou City, Anhui Province

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