CN216274476U

CN216274476U - Spinning assembly

Info

Publication number: CN216274476U
Application number: CN202122356124.1U
Authority: CN
Inventors: 谈源; 孔伟; 陈亚飞
Original assignee: Changzhou New Intelligent Technology Co Ltd
Current assignee: Changzhou New Intelligent Technology Co Ltd
Priority date: 2021-09-27
Filing date: 2021-09-27
Publication date: 2022-04-12
Anticipated expiration: 2031-09-27

Abstract

The utility model relates to the technical field of chemical fiber spinning, in particular to a spinning assembly, which comprises: a heat-insulating water shell and a trumpet-shaped feed hopper which are arranged in sequence and are hermetically connected through bolts, the spinning assembly provided by the utility model has the technical effects that the structural strength is high, and spinning stock solution flows without detention.

Description

Spinning assembly

Technical Field

The utility model relates to the technical field of chemical fiber spinning, in particular to PAN-based large-tow carbon fiber precursor wet spinning processing, and discloses a spinning assembly with a large-diameter disc surface and 2-10 ten thousand spinning micropores.

Background

The process technology and the spinning equipment are two main aspects influencing the chemical fiber production, and with the continuous updating of the spinning process and the equipment, the high-speed and high-pressure spinning technology is widely applied to the production. In the chemical fiber spinning process, a spinning assembly is called as a heart in the process flow, and the spinning assembly is used for finely filtering polymer melt delivered by a metering pump, fully mixing the polymer melt and the polymer melt, and extruding the polymer melt through micropores of a spinneret plate under certain pressure to form uniform filaments.

However, the current planar spinneret suffers too much impact force from the spinning solution, is easy to generate local deformation and bulge damage, has short service life, has too large temperature difference between the spinning sprayed from the middle of the spinneret in the coagulating bath and the periphery, and is easy to cause a white core phenomenon due to too high temperature of the middle spinning solution.

In view of the above problems, the designer is actively making research and innovation based on the practical experience and professional knowledge that the engineering of such products is applied for many years, and by using the physics and the fluid mechanics, so as to create a spinning assembly, which is more practical.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: a spin pack assembly is provided to solve the problems of the background art.

In order to achieve the purpose, the utility model adopts the technical scheme that: a spin pack assembly comprising: a heat-insulating water shell, a horn-shaped feed hopper, a spinneret plate fixing seat and a spinneret plate which are arranged in sequence and are hermetically connected through bolts, a chamber for containing heat preservation water is formed between the heat preservation water shell and the trumpet-shaped feed hopper, the heat-insulating water shell is also provided with an inlet and an outlet for the heat-insulating water to enter and exit the chamber, the trumpet-shaped feed hopper and the inner wall of the spinneret plate fixing seat jointly form a channel for the circulation of the spinning solution, the spinneret plate is fixedly arranged on the spinneret plate fixing seat and is used for covering the outlet of the channel, the spinneret plate comprises a depressed part depressed towards the channel at the center and a main body part at the periphery of the depressed part, the main body part is provided with a plurality of penetrating spinning holes, a plurality of layers of filters and distribution plates are further arranged in the channel, and a certain gap is reserved between the distribution plates and the spinneret plate.

Furthermore, a circular bulge positioned in the center and a plurality of annular bulges surrounding the circular bulge are arranged on the end surface, close to the multilayer filter, of the distribution plate, and the end surfaces of the circular bulge and the annular bulges are attached to the end surface of the multilayer filter.

Furthermore, the bottom of the spinneret fixing seat extends towards the inner diameter to form a first clamping ring part, the bottom of the horn-shaped feed hopper corresponds to the first clamping ring part to form a second clamping ring part, and during installation, the spinneret, the distribution plate and the outermost side edge of the multilayer filter are clamped by the first clamping ring part and the second clamping ring part.

Furthermore, a first sealing gasket is arranged between the outermost side edge of the spinneret plate and the outermost side edge of the distribution plate, and a second sealing gasket is arranged between the outermost side edge of the spinneret plate and the first clamping ring part.

Further, the tubaeform feeder hopper with between the heat preservation water casing tubaeform feeder hopper with all be provided with the sealing washer between the spinneret fixing base.

Further, the main body part comprises a spinning area close to the depressed part, a tapered part extending from the spinning area to the distribution plate, and a clamping edge part horizontally extending outwards from the tapered part.

Further, after the distributor plate is installed, the conical part is attached to the distributor plate.

Further, after installation, there is a gap between the tapered portion and the distributor plate.

The utility model has the beneficial effects that: the utility model particularly designs the center of the spinneret plate into a structure which is concave towards the channel, and has multiple advantages compared with the spinneret plate with a conventional flat plate structure, and particularly comprises the following steps:

firstly, the spinneret plate has enhanced strength due to the middle depression, can bear larger spinning pressure, prevents local bulging deformation of the spinneret plate and is beneficial to improving the spinning speed;

secondly, the spinneret plate is made of plates with the same thickness, and the diameter can be larger, so that the spinneret efficiency is improved;

thirdly, the concave surface of the concave part in the channel becomes a flow guide surface for the flowing of the spinning solution, so that the spinning solution entering a gap cavity between the distribution plate and the spinneret plate flows, the temperature and the concentration of the flowing spinning solution are mixed more uniformly, the pressure at each position in the gap cavity is equal, and the flowing of the spinning solution is not detained;

fourthly, because the depressed part is not provided with the spinning hole, the problem that the white core is caused by overhigh temperature when the spinning is sprayed out from the middle of the spinneret plate is effectively avoided.

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, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a cross-sectional view of a spin pack assembly according to one embodiment of the present invention;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is an exploded view of a spinning assembly according to one embodiment of the present invention;

FIG. 4 is an enlarged view of FIG. 3 at C;

FIG. 5 is a cross-sectional view of a spinning assembly according to a second embodiment of the present invention;

fig. 6 is an enlarged view of fig. 5 at B.

Reference numerals: 1. a heat-insulating water housing; 2. a horn-shaped feed hopper; 3. a spinneret plate fixing seat; 4. a spinneret plate; 5. a recessed portion; 6. a main body portion; 7. A multi-layer filter; 8. a distribution plate; 9. a circular protrusion; 10. an annular projection; 11. a first collar portion; 12. a second collar portion; 13. a first gasket; 14. a second gasket; 15. a seal ring; 16. a spinning area; 17. a tapered portion; 18. and a clamping edge part.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Example one

The spin pack assembly shown in fig. 1-4, comprising: set gradually and through bolt sealing connection's heat preservation water casing 1, loudspeaker form feeder hopper 2, spinneret fixing base 3 and spinneret 4, be formed with the cavity that is used for holding the heat preservation water between heat preservation water casing 1 and the loudspeaker form feeder hopper 2, still be provided with the import and the export that supply the heat preservation water business turn over cavity on the heat preservation water casing 1, the passageway that supplies the circulation of spinning dope is constituteed jointly to loudspeaker

form feeder hopper

2 and 3 inner walls of spinneret fixing base, 4 fixed mounting of spinneret are on spinneret fixing base 3, and be used for the export of cover to establish the passageway, spinneret 4 includes central authorities towards the sunken depressed part 5 that the passageway is sunken to form and the main part 6 of the 5 periphery of depressed part, the spinning hole that a plurality of runs through is seted up to main part 6, still be provided with multilayer filter 7 and break-plate 8 in the passageway, there is certain clearance between break-plate 8 and the spinneret 4.

The utility model provides a spinning component, wherein a horn-shaped feed hopper 2 is provided with an inlet for a spinning stock solution to enter a channel, the spinning stock solution firstly contacts with a multi-layer filter 7 after entering the channel, the spinning stock solution after filtration treatment is continuously sprayed out of micropores of a spinneret plate to form a trickle and contacts with a distribution plate 8, as shown in figure 3, the distribution plate 8 is provided with a plurality of through holes for the spinning stock solution to pass through, the spinning stock solution passes through the distribution plate 8 to realize uniform distribution and prevent the spinning stock solution from gathering, then the spinning stock solution continuously flows to an outlet and enters a gap cavity between the distribution plate 8 and the spinneret plate 4, the spinning stock solution is secondarily mixed and cached, and finally is directly sprayed out through spinning holes on the spinneret plate 4, the utility model particularly designs the center of the spinneret plate 4 into a structure which is concave towards the channel compared with the spinneret plate with the conventional flat plate structure, the spinneret plate 4 has multiple advantages, specifically, the spinneret plate 4 has enhanced strength due to the middle depression, can bear larger spinning pressure, prevents local bulging deformation of the spinneret plate 4, and is beneficial to improving the spinning speed; secondly, the spinneret plate 4 is made of a plate with the same thickness, and the diameter can be larger, so that the spinneret efficiency is improved; thirdly, the concave surface of the concave part 5 positioned in the channel becomes a flow guide surface for the flowing of the spinning solution, so that the spinning solution entering a gap cavity between the distribution plate 8 and the spinneret plate 4 flows, the temperature and the concentration of the flowing spinning solution are mixed more uniformly, the pressure at each position in the gap cavity is equal, and the flowing of the spinning solution is not detained; fourthly, because the depressed part 6 is not provided with the spinning hole, the problem that the white core is caused by overhigh temperature when the spinning is sprayed out from the middle of the spinneret plate 4 is effectively avoided. As shown in fig. 1, the whole spinning assembly is shown facing downward, and in a specific use, the spinning assembly may also be installed in a horizontal orientation or an inclined orientation, and a specific use manner is determined according to a specific use scenario and is not limited herein.

In order to prevent the distribution plate 8 and the multi-layer filter 7 from being attached to each other, as shown in fig. 4, a circular protrusion 9 located at the center and a plurality of annular protrusions 10 surrounding the circular protrusion 9 are disposed on the end surface of the distribution plate 8 close to the multi-layer filter 7, and the end surfaces of the circular protrusion 9 and the annular protrusions 10 are attached to the end surface of the multi-layer filter 7.

As shown in fig. 1 and 2, a first clamping ring part 11 is formed at the bottom of the spinneret fixing seat 3 in an extending manner towards the inner diameter, a second clamping ring part 12 is formed at the bottom of the horn-shaped feed hopper 2 corresponding to the first clamping ring part 11, during installation, the outermost edges of the spinneret 4, the distributing plate 8 and the multi-layer filter 7 are clamped by the first clamping ring part 11 and the second clamping ring part 12, for convenience of assembly, the outermost edges of the spinneret 4, the distributing plate 8 and the multi-layer filter 7 are equal in diameter, during assembly, the spinneret 4, the distributing plate 8 and the multi-layer filter 7 are sequentially placed into the spinneret fixing seat 3, and then the horn-shaped feed hopper 2 is assembled with the spinneret fixing seat 3 so as to clamp the spinneret fixing seat.

In order to increase the sealing performance, a first sealing gasket 13 is arranged between the outermost edge of the spinneret plate 4 and the outermost edge of the distribution plate 8, and a second sealing gasket 14 is arranged between the outermost edge of the spinneret plate 4 and the first clamping ring part 11.

In order to further increase the leakproofness, sealing rings 15 are arranged between the horn-shaped feed hopper 2 and the heat preservation water shell 1 and between the horn-shaped feed hopper 2 and the spinneret plate fixing seat 3.

As a preference of the above embodiment, the main body part 6 includes a spinning region 16 near the depressed part 5, a tapered part 17 extending from the spinning region 16 toward the distribution plate 8, and a clamping edge part 18 extending horizontally outward from the tapered part 17, and the spinning region 16 is separated from the distribution plate 8 by providing the tapered part 17, thereby forming a clearance cavity.

In order to increase the structural stability between the spinneret plate 4 and the distribution plate 8, after the spinneret plate 4 and the distribution plate 8 are installed, the conical part 17 is attached to the distribution plate 8, and the conical part 17 is attached to the distribution plate 8, so that the probability of deformation of the spinneret plate 4 in use is reduced.

Example two

Unlike the first embodiment, after the mounting, a certain gap exists between the tapered portion 17 and the distribution plate 8, and the dope proceeds to the gap between the tapered portion 17 and the distribution plate 8, further increasing the fluidity.

It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A spin pack assembly, comprising: set gradually and through bolted seal connection's heat preservation water casing (1), loudspeaker form feeder hopper (2), spinneret fixing base (3) and spinneret (4), heat preservation water casing (1) with be formed with the cavity that is used for holding the heat preservation water between loudspeaker form feeder hopper (2), still be provided with the import and the export that supply the heat preservation water business turn over cavity on heat preservation water casing (1), loudspeaker form feeder hopper (2) with the passageway that supplies the circulation of spinning stock solution is constituteed jointly to spinneret fixing base (3) inner wall, spinneret (4) fixed mounting is in on spinneret fixing base (3) and be used for covering the export of establishing the passageway, spinneret (4) include central authorities orientation sunken depressed part (5) that form of passageway and main part (6) of depressed part (5) periphery, a plurality of spinning hole that runs through is seted up in main part (6), the channel is also provided with a multi-layer filter (7) and a distribution plate (8), and a certain gap is reserved between the distribution plate (8) and the spinneret plate (4).

2. Spinning pack according to claim 1, characterized in that the end face of the distributor plate (8) close to the multilayer filter (7) is provided with a centrally located circular projection (9) and a plurality of annular projections (10) surrounding the circular projection (9), the end faces of the circular projection (9) and the annular projections (10) each abutting against the end face of the multilayer filter (7).

3. The spinning assembly according to claim 1, characterized in that a first clamping ring part (11) is formed on the bottom of the spinneret holder (3) in a manner of extending towards the inner diameter, a second clamping ring part (12) is formed on the bottom of the horn-shaped feed hopper (2) corresponding to the first clamping ring part (11), and when the spinneret (4), the distribution plate (8) and the outermost edge of the multi-layer filter (7) are clamped by the first clamping ring part (11) and the second clamping ring part (12) when the spinneret is installed.

4. Spinning pack according to claim 3, characterized in that a first sealing gasket (13) is arranged between the outermost edge of the spinneret plate (4) and the outermost edge of the distributor plate (8), and a second sealing gasket (14) is arranged between the outermost edge of the spinneret plate (4) and the first collar (11).

5. Spinning assembly according to claim 1, characterized in that sealing rings (15) are arranged between the trumpet-shaped feed hopper (2) and the heat insulating water housing (1) and between the trumpet-shaped feed hopper (2) and the spinneret holder (3).

6. Spinning pack according to any of claims 1 to 5, characterized in that the main body (6) comprises a spinning zone (16) close to the recess (5), a tapered section (17) of the spinning zone (16) extending towards the distribution plate (8), and a bayonet edge section (18) of the tapered section (17) extending horizontally outwards.

7. Spinning pack according to claim 6, characterized in that, when installed, the conical portion (17) is conformed between the distributor plate (8).

8. Spinning pack according to claim 6, characterized in that after mounting there is a clearance between the conical portion (17) and the distributor plate (8).