CN217628765U

CN217628765U - Spinning device for melt-blowing superfine fiber

Info

Publication number: CN217628765U
Application number: CN202221890455.1U
Authority: CN
Inventors: 刘红艳; 张辉
Original assignee: Luolai Lifestyle Technology Co Ltd; Shanghai Luolai Lifestyle Technology Co Ltd
Current assignee: Luolai Lifestyle Technology Co Ltd; Shanghai Luolai Lifestyle Technology Co Ltd
Priority date: 2022-07-21
Filing date: 2022-07-21
Publication date: 2022-10-21
Anticipated expiration: 2032-07-21

Abstract

The utility model provides a melt and spout superfine fiber's spinning device, concretely relates to spinning equipment field, it includes: a rotary drum, a cover cap, a carding disc, a traction roller assembly and a winding shaft assembly. The lower extreme and the rotary drum drive arrangement of rotary drum are connected, be equipped with the coacervation groove on the inner wall of rotary drum side surface, the shroud sets up the upper end opening part of rotary drum, be equipped with yarn export and fibre passageway on the shroud, the carding disc sets up in the rotary drum, be equipped with the carding district on the upper surface of carding disc, be equipped with a plurality of carding pinteeth in the carding district, draw the roller subassembly and be used for drawing the follow the yarn that the yarn exit came out to carry the yarn to the winding axle subassembly. The utility model discloses melt blown superfine fiber's spinning device can draft and comb melt blown superfine fiber, and its carding process is soft, and is less to the fibre damage to process flow is short, and production efficiency is high, and the product quality of yarn is good.

Description

Spinning device for melting and spraying superfine fiber

Technical Field

The utility model relates to a spinning equipment field especially relates to a melt and spout superfine fiber's spinning device.

Background

The melt-blown superfine fiber is formed by heating and melting polymer particles or polymer slices in a screw extruder, conveying a melt into a spinneret plate, and strongly drawing the molten polymer under the action of high-temperature high-speed hot air flow, wherein the fiber diameter can reach the micro-nano level, the specific surface area is very large, and the melt-blown superfine fiber has unique performance advantages. However, since its strength is very low due to its ultra-fine size, it is currently available only in the form of a non-woven fabric.

Patent application with publication number CN106637542A discloses a device and method for ring spinning by melt-blowing superfine fiber, which specifically includes that superfine fiber sprayed from the melt-blowing device is twisted into yarn by a cooling device, a net curtain conveying device, a fiber bundling device, and then by a ring spindle yarn-forming device. The patent application with publication number CN109750362A discloses a melt-blown-friction spinning device and a yarn manufacturing method using the same, which specifically comprises that melt-blown fiber flow is directly sprayed on a mesh curtain of a conveyor belt, the mesh curtain is conveyed to a feeding plate with a notch, and then spun yarns are prepared by friction spinning process parts such as a roller, a dust cage and the like. The patent application with publication number CN106555276A discloses a device and a method for electrostatic spinning by using melt-blown superfine fibers, which specifically comprises that the superfine fibers sprayed by a melt-blown device are twisted into yarn by an electrostatic yarn forming device after passing through a cold air box, a net curtain conveying device and a fiber net electret device. The spinning methods disclosed in the above patent applications collect fibers by a mesh curtain conveying device, so that it is difficult to comb and draft melt-blown fibers, the straightening state of the fibers is poor, impurities and fiber particles are more, and the quality of twisted yarns hardly meets the requirements.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a melt-blown superfine fiber's spinning device can carry out effectual draft and comb to melt-blown superfine fiber, improves fibrous parallel straightness that stretches out, reduces fibre knot and impurity, improves the resultant yarn quality.

To achieve the above and other related objects, the present invention provides a spinning device for melt-blowing ultrafine fibers, comprising: the device comprises a rotary drum, a cover cap, a carding disc, a traction roller assembly and a winding shaft assembly. The upper end of the rotary drum is open, the lower end of the rotary drum is connected with a rotary drum driving device, and a coagulation tank is arranged on the inner wall of the side surface of the rotary drum. The cover is arranged at an opening at the upper end of the rotary drum, the cover does not rotate along with the rotary drum, a yarn outlet is formed in the center of the cover, a fiber channel is formed in the cover on one side of the yarn outlet, and the fiber channel is used for conveying fibers into the rotary drum.

The carding disc is arranged in the rotary drum and located on the lower side of the condensation groove, the carding disc is fixedly connected with the bottom surface of the rotary drum, the upper surface of the carding disc is a downward-sunken spherical surface, a carding area is arranged on the upper surface of the carding disc, a plurality of carding needle teeth are arranged in the carding area, one ends of the carding needle teeth are fixedly connected with the upper surface of the carding disc, the other ends of the carding needle teeth extend towards the central axis of the carding disc, and the traction roller assembly is used for drawing yarns coming out from the yarn outlet and conveying the yarns to the winding shaft assembly.

In an example of the spinning apparatus for melting and spraying ultrafine fibers of the present invention, the center of the lower surface of the rotary drum is provided with a driving shaft, one end of the driving shaft is fixedly connected to the rotary drum, and the other end of the driving shaft is connected to the rotary drum driving device.

In an example of the spinning device for melting and spraying the superfine fiber, the coagulation groove is arranged in the middle of the side surface of the rotary drum, the coagulation groove is positioned on the same plane, and the plane is perpendicular to the central axis of the rotary drum.

The side surface of the drum is divided into an upper part and a lower part by the coagulation grooves, the included angle formed by the side surface of the drum on the upper side of the coagulation grooves and the plane where the coagulation grooves are located is 45-60 degrees, and the included angle formed by the side surface of the drum on the lower side of the coagulation grooves and the plane where the coagulation grooves are located is 60-70 degrees.

In an example of the spinning device for melting and spraying the ultrafine fibers, the shape of the cover cap is matched with the shape of the opening at the upper end of the rotary drum, the cover cap is not connected with the rotary drum, and the inner surface of the cover cap is an arc surface.

In an example of the spinning device for melting and spraying the ultrafine fibers of the present invention, the inlet of the fiber passage is provided on the upper surface of the cover, the outlet of the fiber passage is provided on the inner surface of the cover, and the fiber passage extends toward the center of the carding plate.

In an example of the spinning apparatus for melting and spraying the ultrafine fibers of the present invention, the diameter of the fiber passage inlet is larger than the diameter of the fiber passage outlet.

In an example of the spinning device for melting and spraying ultrafine fibers of the present invention, an air inlet channel is provided on the cover cap around the fiber channel, an inlet of the air inlet channel is provided on an upper surface and/or a side surface of the cover cap, an outlet of the air inlet channel is provided on the fiber channel, and an extending direction of the air inlet channel is toward the outlet of the fiber channel.

The utility model discloses in melt and spout superfine fiber's spinning device an example, the carding disc is circular, the carding disc with the rotary drum is coaxial setting, the inside cavity of carding disc, the bottom central authorities of carding disc are equipped with the connecting pipe, the inside cavity of drive shaft, the connecting pipe with the drive shaft is with threaded connection, comb between the pin tooth be equipped with a plurality of ventholes on the upper surface of carding disc.

The utility model discloses in a melt and spout superfine fiber's spinning device example, a plurality of carding teeth with a plurality of concentric circles are arranged into as the center to the center of carding disk upper surface, and are a plurality of the number of turns of the concentric circle that carding teeth were arranged into is 3 ~ 100 circles, the length of carding teeth is 0.5 ~ 30mm, carding teeth with carding disk upper surface with the contained angle that the tangent line that the tie point place of carding teeth formed is 3 ~ 90, the density of carding teeth is 60 ~ 1500 needles per square centimeter.

The utility model discloses in a melt-blow superfine fiber's spinning device example, a plurality of the number of turns of the concentric circles that the carding pin tooth was arranged is 8 ~ 40 circles, the length of carding pin tooth is 1 ~ 3mm, carding pin tooth with carding disk upper surface with the contained angle that the tangent line that the tie point of carding pin tooth was located formed is 30 ~ 50, the density of carding pin tooth is 600 ~ 1000 needles/square centimeter.

In an example of the spinning device for melting and spraying the superfine fiber, a plurality of impurity discharging openings are arranged on the bottom surface of the rotary drum.

The utility model discloses melt blown superfine fiber's spinning device can carry out the draft and comb melt blown superfine fiber, utilizes the centrifugal force that produces when the carding disc is rotatory makes the fibre pass through comb the district, thereby make the fibre quilt comb the latch comb, get rid of knot and impurity in the fibre to make the fibre with the parallel state of straightening get into the rotary drum in the coacervation tank, then follow the shroud discharge behind the yarn exit twisting formation yarn, the utility model discloses a carding process is soft, and is less to the fibre damage to process flow is short, and production efficiency is high, and the product quality of yarn is good.

Drawings

FIG. 1 is a schematic structural view of an embodiment of the spinning apparatus for melting and spraying ultrafine fibers according to the present invention;

FIG. 2 is a schematic view showing the structure of a rotary drum, a cover and a carding disc in an embodiment of the spinning apparatus for melt-blowing ultrafine fibers according to the present invention;

FIG. 3 is a schematic view of a cover cap according to an embodiment of the spinning apparatus for melting and spraying ultrafine fibers of the present invention;

FIG. 4 is a schematic structural view of a carding plate in an embodiment of the spinning apparatus for melting and spraying ultrafine fibers of the present invention;

FIG. 5 is a schematic view showing the structure of a rotary drum in an embodiment of the spinning apparatus for melting and spraying ultrafine fibers according to the present invention;

FIG. 6 is a schematic view of a structure of carding teeth in an embodiment of the spinning device for melting and spraying ultrafine fibers of the present invention.

Element number description:

100. rotary drum

110. Coagulation tank

120. Drive shaft

130. Impurity discharging port

200. Cover cap

210. Yarn outlet

220. Fiber channel

230. Air inlet channel

300. Combing plate

310. Combing area

311. Carding needle tooth

320. Connecting pipe

330. Air outlet

400. Traction roller assembly

500. Winding shaft assembly

600. Drum drive device

700. Spinneret plate

800. Fiber bundle

Detailed Description

The following embodiments of the present invention are provided by way of specific examples, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the features in the following embodiments and examples may be combined with each other without conflict. It is also to be understood that the terminology used in the examples of the present invention is for the purpose of describing particular embodiments only, and is not intended to limit the scope of the present invention. Test methods in which specific conditions are not noted in the following examples are generally performed under conventional conditions or conditions recommended by each manufacturer.

When numerical ranges are given in the examples, it is understood that both endpoints of each of the numerical ranges and any number between the endpoints are optional unless the utility model discloses otherwise. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs and are intended to describe the same, and all methods, apparatus and materials similar or equivalent to those described herein may be used in the practice of this invention.

Referring to fig. 1, fig. 1 is a schematic structural view of an embodiment of a spinning device for melting and spraying ultrafine fibers according to the present invention. The utility model provides a melt and spout superfine fiber's spinning device, it includes: the carding machine comprises a rotary drum 100, a cover cap 200, a carding disc 300, a traction roller assembly 400 and a winding shaft assembly 500, wherein the upper end of the rotary drum 100 is open, the lower end of the rotary drum 100 is connected with a rotary drum driving device 600, and the inner wall of the side surface of the rotary drum 100 is provided with a coagulation tank 110. The cover 200 is disposed at the upper opening of the drum 100, and the cover 200 does not rotate with the drum 100, the center of the cover 200 is provided with a yarn outlet 210, the cover 200 on the yarn outlet 210 side is provided with a fiber passage 220, and the fiber passage 220 is used for conveying fibers into the drum 100. The carding disc 300 is arranged in the rotary drum 100, the carding disc 300 is located at the lower side of the coagulation tank 110, the carding disc 300 is fixedly connected with the bottom surface of the rotary drum 100, the upper surface of the carding disc 300 is a spherical surface which is concave downwards, a carding area 310 is arranged on the upper surface of the carding disc 300, a plurality of carding pinteeth 311 are arranged in the carding area 310, one end of each carding pintooth 311 is fixedly connected with the upper surface of the carding disc 300, and the other end of each carding pintooth 311 extends towards the central axis of the carding disc 300. The pulling roller assembly 400 is used for pulling the fiber coming out from the yarn outlet 210 and conveying the fiber to the winding shaft assembly 500.

The fiber bundle 800 ejected from the spinneret 700 enters the drum 100 after passing through the fiber passage 220, the fiber bundle 800 directly falls on the carding disc 300, the drum driving device 600 drives the drum 100 and the carding disc 300 to rotate together at a high speed, the cover 200 is suspended at the opening of the drum 100 by the hanging device, and the cover 200 does not rotate together with the drum 100. Under the effect of centrifugal force, tow 800 can be followed the center of carding disk 300 is to discrete all around, at discrete in-process, the fibre can pass through carding district 310, in the carding district 310 carding latch 311 can comb the fibre of process for the fibre is more parallel, straighten, gets rid of the impurity such as fibre induration, granule that entangles and embraces together simultaneously. The carded fibers are thrown out of the carding disc 300 into the coagulation tank 110, the fibers are gathered into a bundle in the coagulation tank 110 and then discharged from the yarn outlet 220 on the cover 200, the rotating drum 100 rotating at a high speed applies a certain twist to the fiber bundle 800, so that the fiber bundle 800 becomes a yarn, and the yarn is pulled by the pulling roller assembly 400 and then conveyed to the winding shaft assembly 500 for winding.

Referring to fig. 1, in an example of the spinning apparatus for melting and spraying ultrafine fibers according to the present invention, a driving shaft 120 is disposed at the center of the lower surface of the rotary drum 100, one end of the driving shaft 120 is fixedly connected to the rotary drum 100, and the other end of the driving shaft 120 is connected to the rotary drum driving apparatus 600.

Referring to fig. 2 and 5, fig. 2 is a schematic structural diagram of a rotary drum, a cover cap and a carding disc in an embodiment of the spinning device for melt-blowing ultrafine fibers of the present invention, and fig. 5 is a schematic structural diagram of a rotary drum in an embodiment of the spinning device for melt-blowing ultrafine fibers of the present invention. In an example of the spinning apparatus for melting and spraying ultrafine fibers of the present invention, the coagulation tank 110 is disposed in the middle of the side surface of the rotating drum 100, and the coagulation tank 110 is located on the same plane perpendicular to the central axis of the rotating drum 100. The included angle alpha formed by the side surface of the drum 100 on the upper side of the coagulation tank 110 and the plane a where the coagulation tank 110 is located is 45-60 degrees, and the included angle beta formed by the side surface of the drum 100 on the lower side of the coagulation tank 110 and the plane a where the coagulation tank 110 is located is 60-70 degrees.

Referring to fig. 2 and 3, fig. 3 is a schematic structural diagram of a cover in an embodiment of the spinning device for melting and spraying ultrafine fibers of the present invention. In an example of the spinning device for melting and spraying the ultra-fine fiber, the shape of the cover cap 200 matches with the shape of the opening at the upper end of the rotary drum 100, and the inner surface of the cover cap 200 is a circular arc surface. The inlet of the fiber passage 220 is provided on the upper surface of the cover 200, the outlet of the fiber passage 220 is provided on the inner surface of the cover 200, and the fiber passage 220 extends toward the center of the opening plate 300. The diameter of the inlet of the fiber passage 220 is larger than the diameter of the outlet of the fiber passage 220. The fiber channel 220 has a large inlet and a small outlet, which is beneficial for further drafting of the fiber, so that the fiber is more parallel and straightened.

Referring to fig. 2 and 3, in an example of the spinning apparatus for melting and blowing ultrafine fibers according to the present invention, an air inlet passage 230 is provided on the cover 200 around the fiber passage 220, an inlet of the air inlet passage 230 is provided on an upper surface and/or a side surface of the cover 200, an outlet of the air inlet passage 230 is provided on the fiber passage 220, and the air inlet passage 230 extends toward the outlet of the fiber passage 220. Cold air may be introduced into the air inlet channel 230, and the cold air flow can cool the fibers and strengthen the flow of the fibers, thereby enhancing the drafting effect.

Referring to fig. 2 and 4, fig. 4 is a schematic view showing a structure of a carding disc in an embodiment of the spinning device for melting and spraying ultrafine fibers of the present invention. In an example of the spinning apparatus for melting and spraying ultrafine fibers of the present invention, the carding disc 100 is circular, and the carding disc 300 and the rotating drum 100 are coaxially disposed. The carding disc 300 is hollow, a connecting pipe 320 is arranged at the center of the bottom of the carding disc 300, the driving shaft 120 is hollow, the connecting pipe 320 is in threaded connection with the driving shaft 120, and a plurality of air outlets 330 are arranged on the upper surface of the carding disc 300 between the carding pin teeth 311. Compressed air is introduced into the carding disc 300 and is sprayed out from the air outlet holes 330, and the air flow sprayed out from the air outlet holes 330 can enhance the flow of the fibers, so that the fibers can smoothly pass through the carding area 310.

Referring to fig. 6, fig. 6 is a schematic structural view of a carding needle tooth in an embodiment of the spinning device for melting and spraying ultrafine fibers of the present invention. In an example of the spinning device for melting and spraying ultrafine fibers of the present invention, the carding teeth 311 are arranged in a plurality of concentric circles as a center at the center of the upper surface of the carding disk 300, and the number of the concentric circles arranged by the carding teeth 311 is 3 to 100 circles, the length of the carding teeth 311 is 0.5 to 30mm, the carding teeth 311 are arranged in an angle of 3 to 90 ° with respect to the upper surface of the carding disk 300 and the included angle γ formed by the tangent line b at the connecting point of the carding teeth 311, and the density of the carding teeth 311 is 60 to 1500 needles/square centimeter.

Referring to fig. 6, in an example of the spinning apparatus for melt-blowing ultrafine fibers according to the present invention, the number of concentric circles formed by the plurality of carding teeth 311 is 8 to 40 circles, the length of the carding teeth 311 is 1 to 3mm, an included angle γ formed by the carding teeth 311 and a tangent line b at a connection point between the upper surface of the carding plate 300 and the carding teeth 311 is 30 to 50 °, and the density of the carding teeth 311 is 600 to 1000 needles/square centimeter.

Referring to fig. 1, in an example of the spinning apparatus for melting and spraying ultrafine fibers of the present invention, a plurality of trash discharging openings 130 are provided on the bottom surface of the rotary drum 100, the trash discharging openings 130 are uniformly distributed at the edge of the bottom surface of the rotary drum 100, and the number of the trash discharging openings 130 is 2 to 12.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention shall be covered by the claims of the present invention.

Claims

1. A spinning apparatus for melt-blowing ultrafine fibers, comprising:

the upper end of the rotary drum is provided with an opening, the lower end of the rotary drum is connected with a rotary drum driving device, and the inner wall of the side surface of the rotary drum is provided with a coagulation tank;

the cover cap is arranged at an opening at the upper end of the rotary drum, the cover cap does not rotate along with the rotary drum, a yarn outlet is formed in the center of the cover cap, a fiber channel is formed in the cover cap on one side of the yarn outlet, and the fiber channel is used for conveying fibers into the rotary drum;

the carding disc is arranged in the rotary drum and is positioned on the lower side of the coagulating basin, the carding disc is fixedly connected with the bottom surface of the rotary drum, the upper surface of the carding disc is a spherical surface which is sunken downwards, a carding area is arranged on the upper surface of the carding disc, a plurality of carding needle teeth are arranged in the carding area, one ends of the carding needle teeth are fixedly connected with the upper surface of the carding disc, and the other ends of the carding needle teeth extend towards the central axis of the carding disc;

a take-off roller assembly for taking off the yarn exiting the yarn outlet and delivering the yarn to a take-up shaft assembly.

2. The spinning apparatus for blowing ultrafine fibers according to claim 1, wherein a driving shaft is provided at the center of the lower surface of the drum, one end of the driving shaft is fixedly connected to the drum, and the other end of the driving shaft is connected to the drum driving means.

3. The apparatus for spinning ultrafine fibers according to claim 1, wherein the coagulation grooves are provided in the middle of the side surface of the drum, and the coagulation grooves are located on the same plane perpendicular to the central axis of the drum.

4. The apparatus for spinning ultrafine fibers according to claim 1, wherein the outer shape of the cover is matched with the outer shape of the opening at the upper end of the drum, and the inner surface of the cover is a circular arc surface.

5. The spinning apparatus for melting and blowing ultrafine fibers according to claim 1, wherein an inlet of the fiber passage is provided on an upper surface of the cover, an outlet of the fiber passage is provided on an inner surface of the cover, the fiber passage extends toward a center of the carding disk, and a diameter of the inlet of the fiber passage is larger than a diameter of the outlet of the fiber passage.

6. The spinning apparatus for melting and blowing ultrafine fibers according to claim 5, wherein an air intake passage is provided in said cover around said fiber passage, an inlet of said air intake passage is provided on an upper surface and/or a side surface of said cover, an outlet of said air intake passage is provided on said fiber passage, and said air intake passage extends toward said fiber passage outlet.

7. The apparatus for spinning ultrafine fibers according to claim 2, wherein the carding disk is circular, the carding disk and the rotor are coaxially arranged, the carding disk is hollow inside, a connecting pipe is provided at the center of the bottom of the carding disk, the driving shaft is hollow inside, the connecting pipe is in threaded connection with the driving shaft, and a plurality of air outlets are provided on the upper surface of the carding disk between the carding teeth.

8. The spinning apparatus for melting and blowing ultrafine fibers according to claim 7, wherein a plurality of said carding teeth are arranged in a plurality of concentric circles centering on a center of an upper surface of said carding disk, a number of turns of the concentric circles in which the plurality of said carding teeth are arranged is 3 to 100, a length of said carding teeth is 0.5 to 30mm, an angle formed by said carding teeth and a tangent line at a connecting point of the upper surface of said carding disk and said carding teeth is 3 to 90 °, and a density of said carding teeth is 60 to 1500 needles/square centimeter.

9. The apparatus for spinning melt-blown microfiber according to claim 8, wherein the number of concentric circles formed by the plurality of carding teeth is 8 to 40, the length of the carding teeth is 1 to 3mm, an angle formed by the carding teeth and a tangent line where a connecting point of the carding teeth and the upper surface of the carding disc is located is 30 to 50 °, and the density of the carding teeth is 600 to 1000 needles/cm.

10. A spinning apparatus for blowing ultrafine fibers as recited in claim 1, wherein said drum has a plurality of trash discharge openings on a bottom surface thereof.