CN114318560B - Drafting structure for producing ultra-high molecular weight polyethylene fiber - Google Patents
Drafting structure for producing ultra-high molecular weight polyethylene fiber Download PDFInfo
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- CN114318560B CN114318560B CN202111530799.1A CN202111530799A CN114318560B CN 114318560 B CN114318560 B CN 114318560B CN 202111530799 A CN202111530799 A CN 202111530799A CN 114318560 B CN114318560 B CN 114318560B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
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Abstract
The invention discloses a drawing structure for producing ultra-high molecular weight polyethylene fibers, which comprises a drawing chamber, a drawing assembly and a thermal control assembly, wherein the side walls of the two ends of the drawing chamber are provided with an input port and an output port; the drafting assembly is arranged in the cavity of the drafting chamber and comprises a first drafting roller set, a second drafting roller set and a third drafting roller set, and the second drafting roller set is positioned between the first drafting roller set and the third drafting roller set; the heat control assembly is arranged in the cavity of the drafting chamber and comprises a preheating roller and a shaping roller, the preheating roller is positioned between the input port and the first drafting roller set, and the third drafting roller set is positioned between the third drafting roller set and the shaping roller; the roller in the drafting assembly adopts petal-shaped roller surfaces, so that the length of a drafting area can be effectively increased, the drafting force during clamping is improved by utilizing curved surface contact, and meanwhile, the roller adopts a movable assembly structure, so that the difficulty in maintenance can be greatly reduced.
Description
Technical Field
The invention relates to the technical field of ultra-high molecular weight polyethylene fiber production equipment, in particular to a drafting structure for ultra-high molecular weight polyethylene fiber production.
Background
The ultra-high molecular weight polyethylene fiber, also called as high-strength high-modulus polyethylene fiber, is the fiber spun from polyethylene with the molecular weight of 100-500 ten thousand, which has the highest specific strength and specific modulus in the world at present.
The fiber must adopt a multi-stage drawing mode to achieve the characteristics of high strength and high modulus. In each stage of under-drawing process, the intermolecular structure is greatly changed. Along with the stretching, macromolecules are arranged from unordered to ordered, and the crystallinity is gradually improved.
However, the conventional ultra-high molecular weight polyethylene fiber is drawn at normal temperature, so that the drawing effect of the ultra-high molecular weight polyethylene fiber is poor, and the operation needs to be repeated for many times. The strength of the fiber is high, so that the clamping requirement on the drafting equipment is high, meanwhile, the high clamping characteristic of the equipment increases the pressure of the rotating shaft of the drafting roller, so that the abrasion of the rotating shaft is increased, and the maintenance difficulty of the drafting equipment is improved; therefore, a novel drafting structure is required to be provided, and the maintenance difficulty of the drafting equipment is greatly reduced while the clamping performance of the drafting roller is improved.
Disclosure of Invention
This section is intended to outline some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description summary and in the title of the application, to avoid obscuring the purpose of this section, the description summary and the title of the invention, which should not be used to limit the scope of the invention.
The present invention has been made in view of the above problems with the conventional drawing structure for producing ultra-high molecular weight polyethylene fibers.
Therefore, the invention aims to provide a drafting structure for producing ultra-high molecular weight polyethylene fibers, which aims to solve the problems of high clamping force, rapid abrasion and high maintenance difficulty in the existing drafting equipment.
In order to solve the technical problems, the invention provides the following technical scheme: the drawing structure for producing the ultra-high molecular weight polyethylene fiber comprises a drawing chamber, a drawing assembly and a thermal control assembly, wherein the side walls of the two ends of the drawing chamber are provided with an input port and an output port; the drafting assembly is arranged in the cavity of the drafting chamber and comprises a first drafting roller set, a second drafting roller set and a third drafting roller set, and the second drafting roller set is positioned between the first drafting roller set and the third drafting roller set; and the thermal control assembly is arranged in the cavity of the drafting chamber and comprises a preheating roller and a shaping roller, the preheating roller is positioned between the input port and the first drafting roller set, and the third drafting roller set is positioned between the third drafting roller set and the shaping roller.
As a preferable embodiment of the drawing structure for producing ultra-high molecular weight polyethylene fiber according to the present invention, wherein: the first drawing roller set, the second drawing roller set and the third drawing roller set comprise two paired rollers, the edge side walls of the rollers are in fit contact, and the contact surfaces of the rollers in each set are in the same horizontal plane.
As a preferable embodiment of the drawing structure for producing ultra-high molecular weight polyethylene fiber according to the present invention, wherein: the first drawing roller set and the third drawing roller set have the same structure and both comprise a driving rotating shaft and a roller surface sleeved on the outer side wall of the driving rotating shaft; the first drafting roller set and the third drafting roller set rotate in the same direction, and a rotating speed difference exists between the first drafting roller set and the third drafting roller set.
As a preferable embodiment of the drawing structure for producing ultra-high molecular weight polyethylene fiber according to the present invention, wherein: the roller of the second drafting roller group comprises a rotating shaft, a drafting roller sleeved on the outer side wall of the rotating shaft and a limiting sleeve matched and sleeved on the rotating shaft and positioned at the end part of the drafting roller; the limit sleeve is matched with the outer side wall of the rotating shaft through threads.
As a preferable embodiment of the drawing structure for producing ultra-high molecular weight polyethylene fiber according to the present invention, wherein: the side wall of one end of the rotating shaft is provided with a stop block, the side wall of the shaft body provided with the stop block is provided with a positioning pin, and the side wall of the rod body in the middle of the rotating shaft is also provided with a plurality of groups of limiting grooves.
As a preferable embodiment of the drawing structure for producing ultra-high molecular weight polyethylene fiber according to the present invention, wherein: the drafting roller comprises an outer roller and a splicing cylinder matched and spliced in the outer roller; the outer roller is far away from a locating groove is formed in the side wall of the inner shaft cavity at one side of the plug tube, and the locating pin can be matched and clamped in the locating groove.
As a preferable embodiment of the drawing structure for producing ultra-high molecular weight polyethylene fiber according to the present invention, wherein: the cylinder face of the outer roller is provided with convex areas and concave areas which are continuously and alternately distributed, and the convex areas can be matched in the concave areas.
As a preferable embodiment of the drawing structure for producing ultra-high molecular weight polyethylene fiber according to the present invention, wherein: the axial side wall of the outer roller is provided with inserting grooves which are communicated with the inner shaft cavity of the outer roller through at least one group of limiting through grooves, and limiting columns are slidably matched in the limiting through grooves; the plug cylinder is matched and plugged in the plug groove, and the inner side wall of the plug cylinder can be contacted with the end part of the limit column.
As a preferable embodiment of the drawing structure for producing ultra-high molecular weight polyethylene fiber according to the present invention, wherein: the radial diameters of the two ends of the limiting post and the limiting through groove are smaller than the radial diameters of the respective middle parts, and the axial length of the limiting post is larger than that of the limiting through groove; the limiting column slides in the groove cavity of the limiting through groove, and at any moment, only one end side wall of the limiting column can completely extend out of the groove cavity of the limiting through groove and extend into the limiting groove.
As a preferable embodiment of the drawing structure for producing ultra-high molecular weight polyethylene fiber according to the present invention, wherein: the installation height of the preheating roller is higher than that of the drafting assembly, and the tangential direction of the roller surface at the top of the preheating roller is flush with the input direction of the input port; the shaping rollers are arranged in pairs, and the output direction of the roller surfaces of the shaping rollers is flush with the output port.
The invention has the beneficial effects that:
the roller in the drafting assembly adopts petal-shaped roller surfaces, so that the length of a drafting area can be effectively increased, the drafting force during clamping is improved by utilizing curved surface contact, and meanwhile, the roller adopts a movable assembly structure, so that the difficulty in maintenance can be greatly reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:
FIG. 1 is a schematic view of the overall planar structure of the drawing structure for producing ultra-high molecular weight polyethylene fiber according to the present invention.
FIG. 2 is a schematic cross-sectional perspective view of a drawing structure for producing ultra-high molecular weight polyethylene fibers according to the present invention.
FIG. 3 is a schematic diagram showing the overall structure of a drawing unit of the drawing structure for producing ultra-high molecular weight polyethylene fiber according to the present invention.
Fig. 4 is a schematic diagram showing a specific structure of a single second drawing roll of the drawing structure for producing ultra-high molecular weight polyethylene fiber according to the present invention.
Fig. 5 is a schematic view of the partial structure of the outer roller of the second drawing roller of the drawing structure for producing ultra-high molecular weight polyethylene fiber according to the present invention.
Fig. 6 is a schematic view showing a connection structure of a radial cross section of a second drawing roll of the drawing structure for producing ultra-high molecular weight polyethylene fiber according to the present invention.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present invention is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Further, in describing the embodiments of the present invention in detail, the cross-sectional view of the device structure is not partially enlarged to a general scale for convenience of description, and the schematic is only an example, which should not limit the scope of protection of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in actual fabrication.
Example 1
Referring to fig. 1 and 2, in a first embodiment of the present invention, there is provided a drawing structure for ultra-high molecular weight polyethylene fiber production, the drawing structure comprising a drawing chamber 100, a drawing assembly 200 and a thermal control assembly 300, wherein the drawing chamber 100 is a drawing structure part in a drawing apparatus, which is a housing part, in which the drawing assembly 200 and the thermal control assembly 300 are installed; the drawing assembly 200 is used for drawing the ultra-high molecular weight polyethylene fiber, and the thermal control assembly 300 is used for drawing the ultra-high molecular weight polyethylene fiber.
Specifically, the draft chamber 100 is provided with an input port 101 and an output port 102 on the side walls of two ends; the inner cavity of the drafting chamber 100 is hollow, and an input port 101 and an output port 102 are arranged at two ends of the side wall of the drafting chamber;
a draft assembly 200 disposed in the cavity of the draft chamber 100 and including a first draft roller group 201, a second draft roller group 202, and a third draft roller group 203, the second draft roller group 202 being located between the first draft roller group 201 and the third draft roller group 203; the drafting assembly 200 is integrally installed in the drafting chamber 100, and at least comprises three groups of drafting rollers, wherein each group of drafting rollers is provided in pairs, namely a first drafting roller group 201, a second drafting roller group 202 and a third drafting roller group 203.
The thermal control assembly 300 is disposed in the cavity of the drafting chamber 100, and comprises a preheating roller 301 and a shaping roller 302, wherein the preheating roller 301 is located between the input port 101 and the first drafting roller set 201, and the third drafting roller set 203 is located between the third drafting roller set 203 and the shaping roller 302. Wherein, the preheating roller 301 is used for preheating the ultra-high molecular weight polyethylene fiber at the input end, so that the ultra-high molecular weight polyethylene fiber is easier to draft; the shaping roller 302 is used for eliminating the internal stress of the drafted ultra-high molecular weight polyethylene fiber tows and reducing the heat shrinkage rate.
Example 2
Referring to fig. 2 to 6, a second embodiment of the present invention is different from the first embodiment in that: the first drawing roller set 201, the second drawing roller set 202 and the third drawing roller set 203 all comprise two paired rollers, the edge side walls of the rollers are in matched contact, and the contact surfaces of the rollers in all sets are in the same horizontal plane.
The first drawing roller group 201 and the third drawing roller group 203 have the same structure and both comprise a driving rotating shaft Q and a roller surface G sleeved on the outer side wall of the driving rotating shaft Q; the first drawing roller group 201 and the third drawing roller group 203 rotate in the same direction with a rotation speed difference therebetween.
The roller of the second drawing roller set 202 comprises a rotating shaft 202a, a drawing roller 202b sleeved on the outer side wall of the rotating shaft 202a and a limiting sleeve 202c matched and sleeved on the rotating shaft 202a and positioned at the end part of the drawing roller 202 b; the stop collar 202c is screwed on the outer sidewall of the rotating shaft 202 a.
One end side wall of the rotating shaft 202a is provided with a stop block 202a-1, the shaft side wall with the stop block 202a-1 is provided with a positioning pin 202a-2, and the rod side wall in the middle of the rotating shaft 202a is also provided with a plurality of groups of limiting grooves 202a-3.
The drafting roller 202b comprises an outer roller 202b-1 and a splicing cylinder 202b-2 matched and spliced in the outer roller 202 b-1; the outer roller 202b-1 has a positioning groove D on the inner shaft cavity side wall on the side far away from the plugging tube 202b-2, and the positioning pin 202a-3 can be clamped in the positioning groove D in a matching way.
The face of the outer roller 202b-1 has convex areas T and concave areas A which are alternately arranged in succession, and the convex areas T can be fitted in the concave areas A.
The axial side wall of the outer roller 202b-1 is provided with inserting grooves 202b-11, the inserting grooves 202b-11 are communicated with the inner shaft cavity of the outer roller 202b-1 through at least 1 group of limiting through grooves 202b-12, and the limiting through grooves 202b-12 are in sliding fit with limiting columns X; the plugging tube 202b-2 is plugged in the plugging groove 202b-11 in a matching way, and the inner side wall of the plugging tube can be contacted with the end part of the limit column X.
The radial diameters of the two ends of the limiting column X and the limiting through groove 202b-12 are smaller than the radial diameters of the respective middle parts, and the axial length of the limiting column X is larger than that of the limiting through groove 202 b-12; the limiting column X slides in the groove cavity of the limiting through groove 202b-12, and only one end side wall of the limiting column X can completely extend out of the groove cavity of the limiting through groove 202b-12 and extend into the limiting groove 202a-3 at any moment.
The installation height of the preheating roller 301 is higher than that of the drafting assembly 200, and the tangential direction of the top roller surface is flush with the input direction of the input port 101; the setting roller 302 has two pairs, and the roller surface output direction is flush with the output port 102.
Further, compared to embodiment 1, in the three sets of draft rollers for drafting, the first draft roller set 201 and the third draft roller set 203 have the same structure and are distributed on both sides of the second draft roller set 202, the first draft roller set 201 is an input direction, and the third draft roller set 203 is an output direction; the first drawing roller group 201 and the third drawing roller group 203 are connected in a rolling contact rotation manner of the edges of the paired rollers, and are used for clamping fiber tows and drawing the fiber tows by utilizing the rotating speed difference of the first drawing roller group and the third drawing roller group; and the second set of draw rolls 202 is used to adjust the draw of the fiber strand.
Specifically, the rotating shaft 202a in the second drawing roller set 202 is sleeved with the drawing roller 202b in a matching manner, and the drawing roller 202b sleeved on the rotating shaft 202a is limited and fixed by a limiting sleeve 202c. Wherein, the stop block 202a-1 on the side wall of the shaft 202a is used for limiting the sleeving position of the drafting roller 202b, the positioning pin 202a-2 is used for stably driving the drafting roller 202b to rotate around the shaft 202a in cooperation with the positioning groove D, and the limiting groove 202a-3 on the side wall of the shaft body is used for stably connecting the drafting roller 202b with the shaft 202a in cooperation with the limiting column X.
Further, the drawing roller 202b includes two parts of an outer roller 202b-1 and an inserting cylinder 202b-2, wherein the cylindrical surface of the outer roller 202b-1 has alternately distributed convex areas T and concave areas a, the radial cross section of which is in a regular petal shape, and the convex areas T can be matched in the concave areas a, and under the fixed interval of the first drawing roller group 201 and the third drawing roller group 203, the convex areas T and the concave areas a can increase the drawing distance of fiber tows and improve the clamping force; further, a shaft cavity sleeved on the rotating shaft 202a is formed in the middle of the outer roller 202b-1, and a positioning groove D is formed in the side wall of the end part of the shaft cavity; the axial side wall of one side of the outer roller 202b-1 far away from the positioning groove D is provided with a splicing groove 202b-11 along the axial direction of the outer roller, the depth of the splicing groove 202b-11 is smaller than the axial length of the drafting roller 202b, the splicing groove 202b-11 is communicated with the axial cavity of the drafting roller 202b through a limiting through groove 202b-12, the splicing cylinder 202b-2 can be matched and spliced in the splicing groove 202b-11, the inner cylinder surface of the splicing cylinder 202b-2 can be matched and contacted with the end part of the limiting column X, and the position of the limiting column X is limited.
It should be further noted that, the slot cavity of the limiting slot 202b-12 is elliptical, two ends of the slot cavity are communicated with the axial cavities of the inserting slot 202b-11 and the outer roller 202b-1, and the limiting column X is limited to slide in the limiting slot 202b-12, and the axial length of the limiting column X is greater than the length of the limiting slot 202b-12, so that the limiting column X can extend out of the slot cavity of the limiting slot 202b-12 at any moment, but only one end side wall of the limiting column X can extend out of the slot cavity of the limiting slot 202b-12 at any moment.
The top roller surface of the preheating roller 301 is tangential to the input direction of the input port 101, so that fiber tows can enter the drafting chamber 101, the height of the preheating roller 301 is higher than that of the input end of the first drafting roller group 201, namely, the fiber tows need to bypass the roller surface of the preheating roller 301, and more contact is performed, so that the preheating amount of the fiber tows is increased; similarly, the sizing roller 302 is in more contact with the fiber strand to eliminate the internal stress of the fiber strand after drafting and reduce the heat shrinkage.
The rest of the structure is the same as that of embodiment 1.
In connection with the drawing figures 1-6, during the post-maintenance of the drawing structure, for example, the drawing rolls in the drawing chamber 101 are reorganized, repaired or replaced. For the second drawing roller set 202, in its fixed state, the inserting tube 202b-2 is inserted into the inserting groove 202b-11, one end of the limiting column X contacts with the inner tube surface of the inserting tube 202b-2, so that the other end of the limiting column X protrudes out of the limiting through groove 202b-12 completely, and is clamped in the limiting groove 202a-3, and the limiting sleeve 202c limits the inserting tube 202b-2 in the inserting state, so that the rollers in the second drawing roller set 202 form a stable combined state.
When maintenance and assembly and disassembly are needed, the limiting sleeve 202c is screwed, the limiting sleeve 202c is loosened or unscrewed from the threaded area of the rotating shaft 202a, at the moment, the plugging tube 202b-2 can be taken out from the plugging groove 202b-11 without limitation of the limiting sleeve 202c, after the plugging tube 202b-2 is taken out, the limiting column X does not limit the plugging tube 202b-2, can freely move in the limiting through groove 202b-12, and when the outer roller 202b-1 is moved, the limiting column X can pass through the limiting groove 202a-3, so that the outer roller 202b-1 is taken out from the rotating shaft 202 a.
When the outer roller 202b-1 with other specifications is replaced, one end of the outer roller 202b-1 with a positioning groove D is sleeved on the rotating shaft 202a, so that the positioning groove D can be clamped on the positioning pin 202a-2, then the inserting tube 202b-2 is inserted into the inserting groove 202b-11, the drafting roller 202b is stably limited on the rotating shaft 202a through the limiting column X, and finally the limiting sleeve 202c is screwed in. The draft rollers are assembled into the draft chamber 101.
It should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or substituted without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered in the scope of the claims of the present invention.
Claims (4)
1. The utility model provides a drafting structure for ultra-high molecular weight polyethylene fiber production which characterized in that: comprising the steps of (a) a step of,
the side walls of the two ends of the drafting chamber (100) are provided with an input port (101) and an output port (102);
a draft assembly (200) disposed within the cavity of the draft chamber (100) and comprising a first draft roller set (201), a second draft roller set (202), and a third draft roller set (203), the second draft roller set (202) being located between the first draft roller set (201) and the third draft roller set (203);
the roller of the second drafting roller set (202) comprises a rotating shaft (202 a), a drafting roller (202 b) sleeved on the outer side wall of the rotating shaft (202 a) and a limiting sleeve (202 c) matched and sleeved on the rotating shaft (202 a) and positioned at the end part of the drafting roller (202 b); the limiting sleeve (202 c) is matched on the outer side wall of the rotating shaft (202 a) through threads;
a stop block (202 a-1) is arranged on one end side wall of the rotating shaft (202 a), a positioning pin (202 a-2) is arranged on the shaft body side wall with the stop block (202 a-1), and a plurality of groups of limiting grooves (202 a-3) are also formed on the rod body side wall in the middle of the rotating shaft (202 a);
the drafting roller (202 b) comprises an outer roller (202 b-1) and a splicing cylinder (202 b-2) matched and spliced in the outer roller (202 b-1);
the outer roller (202 b-1) is provided with a positioning groove (D) on the side wall of the inner shaft cavity at one side far away from the plug tube (202 b-2), and the positioning pin (202 a-2) can be matched and clamped in the positioning groove (D);
the cylinder surface of the outer roller (202 b-1) is provided with convex areas (T) and concave areas (A) which are continuously and alternately distributed, and the convex areas (T) can be matched in the concave areas (A);
an inserting groove (202 b-11) is formed in the axial side wall of the outer roller (202 b-1), the inserting groove (202 b-11) is communicated with the inner shaft cavity of the outer roller (202 b-1) through a limit through groove (202 b-12) with the number of not less than 1 group, and a limit column (X) is slidably matched in the limit through groove (202 b-12);
the inserting cylinder (202 b-2) is inserted into the inserting groove (202 b-11) in a matched mode, and the inner side wall of the inserting cylinder can be in contact with the end portion of the limiting column (X);
the radial diameters of the two ends of the limiting column (X) and the limiting through groove (202 b-12) are smaller than the radial diameters of the respective middle parts, and the axial length of the limiting column (X) is larger than that of the limiting through groove (202 b-12);
the limiting column (X) slides in the groove cavity of the limiting through groove (202 b-12), and only one end side wall of the limiting column (X) can completely extend out of the groove cavity of the limiting through groove (202 b-12) and extend into the limiting groove (202 a-3) at any moment; the method comprises the steps of,
the thermal control assembly (300) is arranged in the cavity of the drafting chamber (100) and comprises a preheating roller (301) and a shaping roller (302), the preheating roller (301) is positioned between the input port (101) and the first drafting roller set (201), and the third drafting roller set (203) is positioned between the second drafting roller set (202) and the shaping roller (302).
2. The drawing structure for producing ultra-high molecular weight polyethylene fiber according to claim 1, wherein: the first drafting roller set (201), the second drafting roller set (202) and the third drafting roller set (203) comprise two paired rollers, the edge side walls of the rollers are in matched contact, and the contact surfaces of the rollers in each set are in the same horizontal plane.
3. The drawing structure for producing ultra-high molecular weight polyethylene fiber according to claim 1 or 2, characterized in that: the first drafting roller set (201) and the third drafting roller set (203) have the same structure and comprise a driving rotating shaft (Q) and a roller surface (G) sleeved on the outer side wall of the driving rotating shaft (Q);
the first drawing roller set (201) and the third drawing roller set (203) rotate in the same direction, and a rotation speed difference exists between the first drawing roller set and the third drawing roller set.
4. The drawing structure for producing ultra-high molecular weight polyethylene fiber according to claim 3, wherein: the installation height of the preheating roller (301) is higher than that of the drafting assembly (200), and the tangential direction of the top roller surface of the preheating roller is flush with the input direction of the input port (101);
the shaping rollers (302) are provided with two rollers which are arranged in pairs, and the roller surface output direction of the shaping rollers is flush with the output port (102).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202111530799.1A CN114318560B (en) | 2021-12-14 | 2021-12-14 | Drafting structure for producing ultra-high molecular weight polyethylene fiber |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111530799.1A CN114318560B (en) | 2021-12-14 | 2021-12-14 | Drafting structure for producing ultra-high molecular weight polyethylene fiber |
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| CN114318560A CN114318560A (en) | 2022-04-12 |
| CN114318560B true CN114318560B (en) | 2023-06-20 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB869636A (en) * | 1957-10-22 | 1961-06-07 | Delaware Mills Inc | Improvements in the production of bulked yarns and fabrics containing them |
| CN110725039A (en) * | 2018-07-17 | 2020-01-24 | 北京同益中新材料科技股份有限公司 | Polyethylene fiber drafting equipment |
| CN208685114U (en) * | 2018-08-14 | 2019-04-02 | 浙江千禧龙纤特种纤维股份有限公司 | A kind of ultra high molecular weight polyethylene fiber production preliminary draft device |
| CN210856485U (en) * | 2019-08-30 | 2020-06-26 | 河北恒星检测设备科技有限公司 | Fiber drawing device |
| CN212505183U (en) * | 2020-06-04 | 2021-02-09 | 福建维幅精工机械有限公司 | Nine-roller drafting machine for producing high-performance special fibers |
| CN213447405U (en) * | 2020-10-12 | 2021-06-15 | 安徽威亚新材料技术有限公司 | Ultra-high molecular weight polyethylene fiber drafting unit |
| CN213866580U (en) * | 2020-11-20 | 2021-08-03 | 嵊州市恒嘉机械有限公司 | General type weaving roller |
| CN113529217B (en) * | 2021-06-23 | 2022-05-17 | 无锡长江精密纺织有限公司 | Heatable drafting roller and ring spinning frame thereof |
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