CN108823654B - Production equipment of biodegradable poly (butylene succinate) filament - Google Patents
Production equipment of biodegradable poly (butylene succinate) filament Download PDFInfo
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- CN108823654B CN108823654B CN201810915716.2A CN201810915716A CN108823654B CN 108823654 B CN108823654 B CN 108823654B CN 201810915716 A CN201810915716 A CN 201810915716A CN 108823654 B CN108823654 B CN 108823654B
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- frame
- filament
- adjusting
- screw
- thread groove
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/08—Melt spinning methods
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
- D01D10/02—Heat treatment
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/12—Stretch-spinning methods
- D01D5/16—Stretch-spinning methods using rollers, or like mechanical devices, e.g. snubbing pins
Abstract
The invention relates to production equipment of biodegradable poly (butylene succinate) filaments, which comprises a double-screw extruder and a winding machine set; the double-screw extruder comprises an extrusion box, wherein a screw is arranged in the extrusion box, a thread groove is formed in the outer surface of the screw, the number of the screws is 2, and the 2 screws are meshed with each other through the thread groove; outer convex strips are respectively formed on two sides of the bottom of the thread groove; the winding unit comprises hot rollers and an adjusting frame, wherein 3 hot rollers are respectively arranged on two sides of the adjusting frame; an electric heating wire is arranged in the hot roller and is connected with a power controller which is independently arranged in the hot roller; the adjusting frame comprises a frame body, two sides of the frame body are respectively provided with an extending frame extending leftwards and rightwards, and the frame body and the extending frame are provided with adjusting grooves communicated with each other. The invention has the advantages of good quality of the output silk and difficult breaking.
Description
Technical Field
The invention relates to the field of chemical equipment, in particular to production equipment for biodegradable polybutylene succinate filaments.
Background
The completely biodegradable plastic is a high molecular material which maintains the same degree of functions as the existing plastic in use, can act on microorganisms such as bacteria, fungi, seaweed and the like in nature after being used, and is finally decomposed into inorganic substances such as water, carbon dioxide and the like, thereby preventing the pollution to the environment and playing a role in protecting the soil and the environment, so the completely biodegradable plastic is called as 'green plastic'. The completely biodegradable plastics can be classified into microbial synthetic degradable plastics, natural product degradable plastics and chemical synthetic degradable plastics according to the composition of raw materials and the preparation method.
Chemically synthesized degradable plastics can be classified into aliphatic polyesters and aromatic polyesters. At present, aliphatic polyester is the most promising polymer material in biodegradable materials. Among aliphatic polyesters, PBS has the best comprehensive performance and reasonable cost performance, and is the best biodegradable material. And the raw materials of l, 4-butanedioic acid and l, 4-butanediol for synthesizing the PBS can be obtained by a petrochemical route and also can be obtained by a coal chemical route or a biological fermentation route, so that the PBS has environmental protection significance and economic value. In recent years, research on PBS-based degradable plastics is active at home and abroad, but few reports on the use of 100% PBS for preparing fibers are available.
PBS fiber with textile performance is prepared by processes of preparing spinning solution, spinning, post-treatment and the like, and the PBS fiber has the advantages of soft hand feeling, good luster, softness like cotton fiber, smoothness like silk fiber, good hygroscopicity and air permeability and the like, so the PBS fiber is popular with people. In the production of PBS fiber, chemical fiber raw materials need to be extruded, processed into threads or strips which are needed by people, and then hot-drawn under certain conditions to increase the orientation of macromolecules in the fiber, wherein the hot-drawing process needs to control the drawing rate and the quality, and the fibers are easy to break and cannot be controlled in the actual drawing process; therefore, the applicant provides further improvement on the basis and designs a production device of biodegradable polybutylene succinate filament to meet the requirements of the existing market.
Disclosure of Invention
The invention aims to solve the technical problem of providing production equipment for biodegradable polybutylene succinate filaments by overcoming the defects in the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme:
a biodegradable poly butylene succinate filament production facility, the component of this poly butylene succinate filament is 100% poly butylene succinate, it includes heating and extrudes the double-screw extruder producing filament of poly butylene succinate and winding machine set to the filament winding; the double-screw extruder comprises an extrusion box, wherein a screw is arranged in the extrusion box, a thread groove is formed in the outer surface of the screw, the number of the screws is 2, and the 2 screws are meshed with each other through the thread groove; outer convex strips are respectively formed on two sides of the bottom of the thread groove, the side walls on two sides of the thread groove are inclined walls, and convex surfaces are formed on the inclined walls; the winding machine set comprises 6 hot rollers and an adjusting frame, wherein the two sides of the adjusting frame are respectively provided with 3 hot rollers; an electric heating wire is arranged in the hot roller and is connected with a power controller which is independently arranged in the hot roller; the adjustable frame comprises a frame body, two sides of the frame body are respectively provided with an extending frame extending leftwards and rightwards, the frame body is provided with adjusting grooves communicated with each other on the extending frame, and the adjusting grooves are provided with a plurality of angle adjusting rollers.
The invention can be further optimized by the following technical measures:
as further optimization, a driving motor is arranged on the extrusion box and is in transmission connection with the screw through a coaxial belt.
As a further optimization, a feeding port is formed on the extrusion box, a feeding box is formed on the feeding port, and a dispersing tablet is arranged between the feeding port and the feeding box.
Preferably, the dispersible tablet comprises a fixed ring body, a shaft end is formed in the fixed ring body, a support rod is arranged between the shaft end and the fixed ring body, and a dispersing blade is arranged on the shaft end through a bearing and can rotate freely.
As a further optimization, the bottom of the supporting rod is provided with a hinged shifting piece, the outer side end of the shifting piece is provided with a shaft rod, a threaded rod body in threaded connection is arranged in the shaft rod, and the threaded rod body is matched with a threaded cavity on the supporting rod on the other side.
As a further optimization, the dispersing blades are arranged in an inclined manner at 30-60 degrees, and convex reinforcing ribs are formed on the upper surfaces of the dispersing blades.
As a further optimization, the adjusting roller is arranged on a screw rod in the adjusting groove through a bearing.
Preferably, the extension frame is arc-shaped or linear.
As a further optimization, the heating wires are uniformly and spirally arranged on the inner wall of the cavity formed in the hot roller.
As a further optimization, a protective metal layer is formed on the outer wall of the hot roller, and fine grooves are formed on the outer wall of the protective metal layer.
Due to the adoption of the technical scheme, the invention has the following beneficial technical effects:
according to the invention, through the 2 screw rods and the thread grooves, the mutual occlusion is realized, the occurrence of dead angles in the extrusion process is avoided, meanwhile, by means of the external raised lines at the bottom and the inclined walls arranged on the side walls, the extrusion of materials can be realized, the movement is easy, the dead angles are avoided, and the improvement of the overall product quality is realized. Dead angles are easy to appear in the existing screw extruder, and the two sides of the bottom are easy to overstock and cause. Therefore, the invention can well solve the problems.
The invention adopts 6 hot rollers, the integral drafting length is greatly improved, and chemical fiber products with different specifications can be formed. In addition, the invention can form a stable drafting condition through the adjusting frame and the plurality of adjusting rollers arranged on the adjusting frame, greatly prolong the whole drafting length and meet the quality requirement of products. The angle that chemical fiber yarn surrounds hot roller, also be exactly holistic heating length, and then adjust the heating time of yarn, holistic efficiency and quality have also obtained improvement and assurance.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the main structure of the twin screw extruder of the present invention;
FIG. 3 is a schematic view of the screw flight section of the twin screw extruder of the present invention;
FIG. 4 is a schematic representation of the dispersion tablets in the twin screw extruder of the present invention.
FIG. 5 is a schematic front view of the winder assembly of the present invention;
FIG. 6 is a schematic view of a hot roller in the winder assembly of the present invention
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Some embodiments of the invention are described in detail below with reference to the accompanying drawings. Features in the embodiments described below may be combined with each other without conflict.
The first embodiment is as follows:
as shown in fig. 1 to 6, the biodegradable polybutylene succinate filament of the present invention comprises 100% polybutylene succinate, which comprises a twin-screw extruder for heating and extruding polybutylene succinate to produce filaments and a winder for winding the filaments; the winding machine set is positioned in the subsequent process of the double-screw extruder, the double-screw extruder comprises an extrusion box 1, a screw 2 is arranged in the extrusion box 1, and the double-screw extruder is characterized in that: the outer surface of the screw rod 2 is provided with a thread groove 3, the number of the screw rods 2 is 2, and the 2 screw rods 2 are meshed with each other through the thread groove 3; outer sand grip 4 is formed respectively to the bottom both sides of thread groove 3, the lateral wall of 3 both sides of thread groove is the hang wall 5 form convex surface 6 on the hang wall 5 be equipped with driving motor 7 on the extrusion case 1, driving motor 7 is connected with 2 transmissions of screw rod through coaxial belt 8, and the rotational speed that can keep screw rod 2 like this is the same, and is even to the pressurization of material, and 2 abundant effectual heating, the extrusion to the material of individual screw rod 2 ensure the quality of product.
The winding machine set comprises 6 hot rollers 14 and an adjusting frame 15, wherein 3 hot rollers 14 are respectively arranged on two sides of the adjusting frame 15; an electric heating wire 16 is arranged in the hot roller 14, and the electric heating wire 16 is connected with a power controller which is independently arranged inside; the adjusting bracket 15 includes support body 17 the both sides of support body 17 are equipped with extension frame 18 of extending about respectively support body 17 be equipped with communicating adjustment tank each other on the extension frame 18, be equipped with a plurality of angle adjusting roller 19 on the adjustment tank, adjusting roller 19 passes through the bearing setting on the screw rod of adjustment tank.
A feed inlet 11 is formed on the extrusion box 1, a feed box 12 is formed on the feed inlet 11, a dispersible tablet 13 is arranged between the feed inlet 11 and the feed box 12, the dispersible tablet 13 comprises a fixed ring body 131, a shaft end 132 is formed in the fixed ring body 131, a support rod 133 is arranged between the shaft end 132 and the fixed ring body, a dispersing blade 134 is arranged on the shaft end 132 through a bearing, the dispersing blade 134 can rotate freely at 360 degrees and can rotate when materials enter, the rotation can also be realized through power transmission input of a transmission gear assembly and a motor, a plurality of or one shifting blade 135 are hinged to the bottom of the support rod 133, a shaft rod is arranged at the outer side end of the shifting blade, a threaded shaft rod 136 connected with threads is arranged in the shifting blade, and the threaded shaft 136 is matched with a threaded cavity on the support rod 133 on the other side, therefore, the shifting piece 135 can be adjusted up and down through the rotation of the threaded rod body 136, so that materials are easily scattered and uniformly distributed, and the extrusion at the back is facilitated. According to the invention, the dispersing blades 134 are arranged in an inclined manner at 30-60 degrees, and the convex reinforcing ribs 137 are formed on the upper surfaces of the dispersing blades 134, so that the integral structural strength of the dispersing blades 134 is realized, and the dispersing blades 134 are favorable for scattering materials in the operation process.
The extension frame 18 is arc-shaped or linear, the extension direction of the adjustment groove is consistent with the extension direction of the frame body 17 and the extension frame 18, the heating wires 16 are uniformly and spirally arranged on the inner wall of the cavity formed in the hot roller 14, the protective metal layer 20 is formed on the outer wall of the hot roller 14, and the fine groove is formed on the outer wall of the protective metal layer 20.
In the actual use process of the equipment, firstly, the poly butylene succinate is poured into a feeding box 12 of a double-screw extruder, after the screw rod 2 is preheated for 15 minutes, the driving motor 7 is started to work to drive the screw rod 2 to rotate to generate filaments, then the produced chemical fiber filaments are introduced into a hot roller 14 through a guide roller, a frame body on an adjusting frame 15 is vertically arranged, 3 groups of horizontal extending frames and 1 group of arc extending frames are arranged on the frame body, wherein the bottom end of each extension frame is provided with an adjusting roller, and the frame body is provided with 15 adjusting rollers, so when the chemical fiber yarn sequentially bypasses the hot roller and the adjusting rollers, the whole drafting is greatly lengthened, meanwhile, the angle of the chemical fiber yarn surrounding the hot roller, namely the integral heating length, can be realized through sliding the adjusting roller, and further the heating time of the yarn is adjusted, and the overall efficiency and quality are improved and guaranteed.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. A biodegradable poly butylene succinate filament production facility, the component of this poly butylene succinate filament is 100% poly butylene succinate, it includes heating and extrudes the double-screw extruder producing filament of poly butylene succinate and winding machine set to the filament winding; the method is characterized in that:
the double-screw extruder comprises an extrusion box, wherein a screw is arranged in the extrusion box, a thread groove is formed in the outer surface of the screw, the number of the screws is 2, and the 2 screws are meshed with each other through the thread groove; outer convex strips are respectively formed on two sides of the bottom of the thread groove, the side walls on two sides of the thread groove are inclined walls, and convex surfaces are formed on the inclined walls; forming a feeding port on the extrusion box, forming a feeding box on the feeding port, arranging a dispersible tablet between the feeding port and the feeding box, wherein the dispersible tablet comprises a fixed ring body, a shaft end is formed in the fixed ring body, a support rod is arranged between the shaft end and the fixed ring body, and dispersing leaves are arranged on the shaft end through a bearing and can freely rotate;
the winding machine set comprises 6 hot rollers and an adjusting frame, wherein the two sides of the adjusting frame are respectively provided with 3 hot rollers; an electric heating wire is arranged in the hot roller and is connected with a power controller which is independently arranged in the hot roller; the adjustable frame comprises a frame body, two sides of the frame body are respectively provided with an extending frame extending leftwards and rightwards, the frame body is provided with adjusting grooves communicated with each other on the extending frame, and the adjusting grooves are provided with a plurality of angle adjusting rollers.
2. The biodegradable polybutylene succinate filament production facility according to claim 1, wherein a drive motor is arranged on the extrusion box, and the drive motor is in transmission connection with the screw through a coaxial belt.
3. The production apparatus of biodegradable polybutylene succinate filament according to claim 1, characterized in that: the bottom of the supporting rod is provided with a hinged shifting piece, the outer side end of the shifting piece is provided with a shaft rod, a threaded rod body in threaded connection is arranged in the shaft rod, and the threaded rod body is matched with a threaded cavity on the supporting rod on the other side.
4. The production apparatus of biodegradable polybutylene succinate filament according to claim 1, characterized in that: the dispersing blades are arranged in an inclined manner at 30-60 degrees, and convex reinforcing ribs are formed on the upper surfaces of the dispersing blades.
5. The production apparatus of biodegradable polybutylene succinate filament according to claim 1, characterized in that: the adjusting roller is arranged on the screw rod in the adjusting groove through a bearing.
6. The production apparatus of biodegradable polybutylene succinate filament according to claim 1, characterized in that: the extension frame is arc-shaped or linear.
7. The production apparatus of biodegradable polybutylene succinate filament according to claim 1, characterized in that: the heating wires are uniformly and spirally arranged on the inner wall of the cavity formed in the hot roller.
8. The production apparatus of biodegradable polybutylene succinate filament according to claim 1, characterized in that: and forming a protective metal layer on the outer wall of the hot roller, and forming fine grooves on the outer wall of the protective metal layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810915716.2A CN108823654B (en) | 2018-08-13 | 2018-08-13 | Production equipment of biodegradable poly (butylene succinate) filament |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810915716.2A CN108823654B (en) | 2018-08-13 | 2018-08-13 | Production equipment of biodegradable poly (butylene succinate) filament |
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| Publication Number | Publication Date |
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| CN108823654A CN108823654A (en) | 2018-11-16 |
| CN108823654B true CN108823654B (en) | 2021-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810915716.2A Active CN108823654B (en) | 2018-08-13 | 2018-08-13 | Production equipment of biodegradable poly (butylene succinate) filament |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4874567A (en) * | 1987-04-24 | 1989-10-17 | Millipore Corporation | Microporous membranes from polypropylene |
| JPH055204A (en) * | 1991-01-29 | 1993-01-14 | Kanebo Ltd | Melt spinning of hygroscopic particle-containing synthetic fiber |
| CN1180386A (en) * | 1995-02-13 | 1998-04-29 | 卡尔弗沙工业设备公司 | Process for melt spinning of polyurethane and/or polyurethane urea |
| CN2639566Y (en) * | 2003-06-03 | 2004-09-08 | 北京化工大学 | Syntropy biscrew thread element of mesh |
| CN201317833Y (en) * | 2008-12-17 | 2009-09-30 | 朱军 | Chemical fiber differentiation spinning machine |
| CN104309095A (en) * | 2014-11-05 | 2015-01-28 | 徐舒 | Double-screw extruder |
| CN106012173A (en) * | 2016-07-29 | 2016-10-12 | 江苏宇顺纺织有限公司 | Chemical fiber yarn hot stretching device |
| CN106012174A (en) * | 2016-07-29 | 2016-10-12 | 江苏宇顺纺织有限公司 | Textile yarn hot drafting device |
| CN108004606A (en) * | 2018-01-18 | 2018-05-08 | 绍兴九洲化纤有限公司 | A kind of preparation method of imitative silk poly butylene succinate emulation long filament |
| CN108048926A (en) * | 2017-12-08 | 2018-05-18 | 南通苏源化纤有限公司 | A kind of high winding combined technique of Telon continuous yarn spinning |
-
2018
- 2018-08-13 CN CN201810915716.2A patent/CN108823654B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4874567A (en) * | 1987-04-24 | 1989-10-17 | Millipore Corporation | Microporous membranes from polypropylene |
| JPH055204A (en) * | 1991-01-29 | 1993-01-14 | Kanebo Ltd | Melt spinning of hygroscopic particle-containing synthetic fiber |
| CN1180386A (en) * | 1995-02-13 | 1998-04-29 | 卡尔弗沙工业设备公司 | Process for melt spinning of polyurethane and/or polyurethane urea |
| CN2639566Y (en) * | 2003-06-03 | 2004-09-08 | 北京化工大学 | Syntropy biscrew thread element of mesh |
| CN201317833Y (en) * | 2008-12-17 | 2009-09-30 | 朱军 | Chemical fiber differentiation spinning machine |
| CN104309095A (en) * | 2014-11-05 | 2015-01-28 | 徐舒 | Double-screw extruder |
| CN106012173A (en) * | 2016-07-29 | 2016-10-12 | 江苏宇顺纺织有限公司 | Chemical fiber yarn hot stretching device |
| CN106012174A (en) * | 2016-07-29 | 2016-10-12 | 江苏宇顺纺织有限公司 | Textile yarn hot drafting device |
| CN108048926A (en) * | 2017-12-08 | 2018-05-18 | 南通苏源化纤有限公司 | A kind of high winding combined technique of Telon continuous yarn spinning |
| CN108004606A (en) * | 2018-01-18 | 2018-05-08 | 绍兴九洲化纤有限公司 | A kind of preparation method of imitative silk poly butylene succinate emulation long filament |
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