Lignin-based carbon fiber precursor universal spinning assembly

Abstract

This utility model relates to the field of carbon fiber technology and discloses a universal spinneret assembly for lignin-based carbon fiber precursor. It includes a mounting plate with a transition connector fixedly connected to its top surface. A through hole is formed in the middle of the mounting plate corresponding to the transition connector, and the transition connector is connected to a nozzle via a quick connector. A connecting seat is detachably connected to the mounting plate, and several spinnerets are arranged at the bottom of the connecting seat. The mounting seat includes a mounting cylinder located outside the connecting seat and a support plate located below the connecting seat. The support plate is located inside the mounting cylinder and threadedly engages with it. Heating units are respectively arranged on the inner wall of the mounting cylinder and on the support plate. A connecting assembly is provided between the mounting cylinder and the connecting seat. This utility model ensures convenient disassembly of the mounting seat while allowing it to be installed on connecting seats of different sizes, and ensures stable heating of the mounting seat, making it widely applicable.

Description

Technical Field

[0001] This utility model relates to the field of carbon fiber technology, and in particular to a universal spinneret assembly for lignin-based carbon fiber precursor. Background Technology

[0002] Carbon fiber is a high-strength, high-modulus fiber with a carbon content of over 90%. Spinning is an important step in carbon fiber processing, and the spinning process typically involves polymerization and spinning stages. There are two types of spinning technology: dry-jet wet spinning and wet spinning. Dry-jet wet spinning refers to the spinning solution being ejected from the spinneret and passing through an air layer before entering a coagulation bath for double diffusion, phase separation, and filament formation.

[0003] Chinese patent CN222476842U discloses a carbon fiber spinneret assembly, including a liquid supply module, a spinneret module, and a heating component. The heating component is sleeved on the outside of the liquid supply module and can be quickly disassembled. However, in this technical solution, the heating component can only be applied to a liquid supply module of a specific size, which is quite limiting. In order to make the heating component applicable to installation of various sizes and to ensure that its heating unit can fit tightly with the connecting seat at the spinneret head, a universal spinneret assembly for lignin-based carbon fiber precursor is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a universal spinneret for lignin-based carbon fiber precursor, which aims to solve or improve at least one of the above-mentioned technical problems.

[0005] To achieve the above objectives, this utility model provides the following solution: This utility model provides a universal spinneret assembly for lignin-based carbon fiber precursor, including...

[0006] Mounting plate, the top surface of which is fixedly connected to a transition connector, and the middle part of the mounting plate is provided with a through hole corresponding to the transition connector. The transition connector is used to cooperate with a quick connector and is connected to a nozzle through the quick connector.

[0007] A connecting seat is detachably connected to the mounting plate. The transition connector communicates with the inside of the connecting seat through the through hole. Several spinnerets are provided at the bottom of the connecting seat.

[0008] The mounting base includes a mounting cylinder located outside the connecting base and a support plate located below the connecting base. The support plate is located inside the mounting cylinder and is threadedly engaged with the mounting cylinder. Heating units are respectively provided on the inner wall of the mounting cylinder and on the support plate. A connecting component is provided between the mounting cylinder and the connecting base.

[0009] Preferably, the connecting seat includes a base plate and an annular side plate fixedly connected to the base plate. A connecting plate is fixedly connected to the top surface of the annular side plate. The connecting plate is detachably connected to the mounting plate by bolts. The transition connector communicates with the inner side of the annular side plate through the through hole. A plurality of the spinnerets penetrate the base plate and are fixedly connected to the base plate.

[0010] Preferably, the connecting assembly includes several vertical plates located around the annular side plate, two horizontal plates are fixedly connected to the side of the vertical plates near the annular side plate, annular grooves are formed on the outer wall of the annular side plate corresponding to the horizontal plates, the ends of the horizontal plates are located in the annular grooves, and a control assembly for controlling the movement of the horizontal plates is installed on the mounting cylinder.

[0011] Preferably, the control component includes a connecting column fixedly connected to the vertical plate. The connecting column is located on the side of the vertical plate away from the annular side plate. The connecting column is slidably connected through the mounting cylinder. A threaded sleeve is threadedly connected to the outer side of the mounting cylinder. An upward-facing inclined groove is formed on the inner side of the threaded sleeve. An inclined surface adapted to the inclined groove is formed at the bottom of the end of the connecting column away from the vertical plate. The ends of several connecting columns with inclined surfaces are respectively located in the inclined groove.

[0012] Preferably, a connecting rod is fixedly connected to the side of the vertical plate away from the annular side plate, and the connecting rod slides through the mounting cylinder.

[0013] Preferably, the heating unit includes a plurality of heating electrodes and a heating power supply for providing energy to the heating electrodes. The heating electrodes located at the mounting cylinder are fixedly connected to the vertical plate. The top surface of the support plate is rotatably connected to an annular support, and the heating electrodes located on the support plate are fixedly installed in the annular support.

[0014] Preferably, the tray has an opening in the middle, and a plurality of the spinnerets are disposed through the opening. A plurality of reinforcing ribs are fixedly connected to the bottom surface of the tray, and the plurality of reinforcing ribs are located around the opening.

[0015] The present invention discloses the following technical effects:

[0016] This invention, through the use of a transition connector and a quick coupling, allows for the selection of different sizes of spinnerets simply by replacing the corresponding transition connector. A connecting assembly between the mounting cylinder and the connecting seat ensures a stable connection. Furthermore, the movement distance of the vertical and horizontal plates within the connecting assembly can be adjusted according to the size of the connecting seat, enabling the connection of connecting seats of different sizes. This facilitates the installation of the mounting seat, ensuring that the heating power supply on the mounting cylinder contacts the periphery of the connecting seat. Simultaneously, the threaded engagement between the support plate and the mounting cylinder drives the heating unit on the support plate to move closer to the bottom of the connecting seat, thus ensuring effective heating for connecting seats of different sizes. This invention ensures easy disassembly of the mounting seat while allowing it to be installed on connecting seats of different sizes, guaranteeing stable heating of the mounting seat, and has a wide range of applications. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the spinneret assembly of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the mounting base and connecting base of this utility model in the separated state;

[0020] Figure 3 This is a bottom view of the pallet of this utility model;

[0021] The components include: 1. Mounting plate; 2. Transition connector; 3. Through hole; 401. Base plate; 402. Annular side plate; 403. Connecting plate; 5. Spinneret; 601. Mounting cylinder; 602. Support plate; 7. Heating unit; 801. Vertical plate; 802. Horizontal plate; 803. Connecting column; 804. Threaded sleeve; 805. Connecting rod; 9. Annular support; 10. Opening; 11. Reinforcing rib. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] Reference Figures 1-3 This utility model provides a universal spinneret assembly for lignin-based carbon fiber precursor, including...

[0025] Mounting plate 1, with a transition connector 2 fixedly connected to the top surface of mounting plate 1, and a through hole 3 corresponding to the transition connector 2 in the middle of mounting plate 1. The transition connector 2 is used to cooperate with a quick connector and is connected to the nozzle through the quick connector.

[0026] A connecting seat is detachably connected to the mounting plate 1. A transition connector 2 is connected to the inside of the connecting seat through a through hole 3. Several spinnerets 5 are provided at the bottom of the connecting seat.

[0027] The mounting base includes a mounting cylinder 601 located outside the connecting base and a support plate 602 located below the connecting base. The support plate 602 is located inside the mounting cylinder 601 and is threadedly engaged with the mounting cylinder 601. Heating units 7 are respectively provided on the inner wall of the mounting cylinder 601 and on the support plate 602. A connecting component is provided between the mounting cylinder 601 and the connecting base.

[0028] By using a transition connector 2 in conjunction with a quick connector, different sizes of spinnerets can be selected by simply replacing the transition connector 2 with the appropriate size. A connecting assembly between the mounting cylinder 601 and the connecting seat ensures a stable connection. Furthermore, the movement distance between the vertical plate 801 and the horizontal plate 802 within the connecting assembly can be adjusted according to the size of the connecting seat, allowing for the connection of connecting seats of different sizes. This facilitates the installation of the mounting seat, ensuring that the heating power supply on the mounting cylinder 601 contacts the periphery of the connecting seat. Simultaneously, the threaded engagement between the support plate 602 and the mounting cylinder 601 drives the heating unit 7 on the support plate 602 to move closer to the bottom of the connecting seat, thus ensuring effective heating for connecting seats of different sizes.

[0029] The scheme is further optimized. The connecting seat includes a base plate 401 and an annular side plate 402 fixedly connected to the base plate 401. A connecting plate 403 is fixedly connected to the top surface of the annular side plate 402. The connecting plate 403 is detachably connected to the mounting plate 1 by bolts. The transition connecting head 2 is connected to the inner side of the annular side plate 402 through the through hole 3. Several spinnerets 5 penetrate the base plate 401 and are fixedly connected to the base plate 401.

[0030] Furthermore, the spinneret 5 includes a washer, a distribution plate, a filter screen and a spinneret plate arranged sequentially from top to bottom. This structure is existing technology and will not be described in detail here.

[0031] A further optimized design includes a connecting assembly comprising several vertical plates 801 located around the annular side plate 402. Two horizontal plates 802 are fixedly connected to the side of each vertical plate 801 closest to the annular side plate 402. Annular grooves are formed on the outer wall of the annular side plate 402 corresponding to the horizontal plates 802, with the ends of the horizontal plates 802 located within these grooves. A control assembly for controlling the movement of the horizontal plates 802 is mounted on the mounting cylinder 601. By controlling the movement of the horizontal plates 802 through the control assembly, the horizontal plates 802 can be aligned with the annular grooves. The movement distance of the horizontal plates 802 can be adjusted according to the dimensions of the annular side plate 402, thereby achieving a stable connection for connecting seats of different sizes.

[0032] A further optimized design includes a control component comprising a connecting post 803 fixedly connected to a vertical plate 801. The connecting post 803 is located on the side of the vertical plate 801 away from the annular side plate 402. The connecting post 803 slides through the mounting cylinder 601. A threaded sleeve 804 is threadedly connected to the outer side of the mounting cylinder 601. An upward-facing inclined groove is formed on the inner side of the threaded sleeve 804. The bottom of the end of the connecting post 803 away from the vertical plate 801 has an inclined surface adapted to the inclined groove. Several connecting posts 803 have inclined ends located within the inclined grooves. Furthermore, the connecting post 803 is a square post.

[0033] By rotating the threaded sleeve 804, the threaded sleeve 804 can move upward, and then push the connecting column 803 closer to the annular side plate 402 through the inclined groove. The connecting column 803 drives the vertical plate 801 and the horizontal plate 802 to move, so that the horizontal plate 802 is inserted into the annular groove to achieve connection.

[0034] In a further optimized design, a connecting rod 805 is fixedly connected to the side of the vertical plate 801 away from the annular side plate 402. The connecting rod 805 slides through the mounting cylinder 601. Using the connecting rod 805, the connecting post 803 can be pulled out when the threaded sleeve 804 no longer limits its movement, thus separating the horizontal plate 802 from the annular groove. This facilitates the disassembly and replacement of the mounting base, as well as the inspection or replacement of the internal heating unit 7.

[0035] Further optimizing the design, the heating unit 7 includes several heating electrodes and a heating power source to provide energy to the heating electrodes. The heating electrodes located at the mounting cylinder 601 are fixedly connected to the vertical plate 801. An annular support 9 is rotatably connected to the top surface of the support plate 602, and the heating electrodes on the support plate 602 are fixedly installed within the annular support 9. The annular support 9 on the support plate 602 can abut against the base plate 401 to increase the stability of the connection between the mounting base and the connecting base, while also protecting the heating electrodes within the annular support 9. Utilizing the heating power source to provide energy to the heating electrodes for heating is a conventional application in the prior art, and will not be elaborated upon here.

[0036] In a further optimized design, an opening 10 is provided in the center of the tray 602, through which several spinnerets 5 are inserted. Several reinforcing ribs 11 are fixedly connected to the bottom surface of the tray 602, and these reinforcing ribs 11 are located around the opening 10. This increases the strength of the tray 602 and facilitates its rotation via the reinforcing ribs 11.

[0037] The working process of this utility model is as follows: In use, a connecting seat with a spinneret of a specified size is selected and connected to the corresponding transition connector 2, thereby cooperating with the quick connector to achieve communication with the nozzle. Then, the mounting cylinder 601 is placed over the outside of the annular side plate 402, and the threaded sleeve 804 is rotated. During the rotation, the threaded sleeve 804 moves upward, thereby using the inclined groove to push several connecting columns 803 towards the annular side plate 402, thereby driving the vertical plate 801 to move, so that the horizontal plate 802 is inserted into the annular groove to achieve connection. At the same time, the heating unit 7 on the vertical plate 801 is brought into contact with the annular side plate 402. Then, the support plate 602 is rotated by the reinforcing rib 11, so that the support plate 602 moves upward and comes into contact with the bottom plate 401. At this time, the heating unit 7 on the support plate 602 is located on the lower side of the bottom plate 401 for easy heating.

[0038] When the heating electrodes in the heating unit 7 need to be inspected or replaced, simply rotate the threaded sleeve 804 so that the threaded sleeve 804 no longer cuts the connecting column 803, and then pull the connecting rod 805 to disengage the horizontal plate 802 from the annular groove, and the entire mounting base can be removed.

[0039] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0040] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A universal spinneret assembly for lignin-based carbon fiber precursor, characterized in that... :include Mounting plate (1), the top surface of which is fixedly connected to a transition connector (2), the middle part of which is provided with a through hole (3) corresponding to the transition connector (2), the transition connector (2) is used to cooperate with a quick connector, and the transition connector (2) is connected to the nozzle through the quick connector; The connecting seat is detachably connected to the mounting plate (1), the transition connector (2) is connected to the inside of the connecting seat through the through hole (3), and the bottom of the connecting seat is provided with a plurality of spinnerets (5); The mounting base includes a mounting cylinder (601) located outside the connecting base and a support plate (602) located below the connecting base. The support plate (602) is located inside the mounting cylinder (601) and is threadedly engaged with the mounting cylinder (601). Heating units (7) are respectively provided on the inner wall of the mounting cylinder (601) and the support plate (602). A connecting component is provided between the mounting cylinder (601) and the connecting base.

2. The universal spinneret assembly for lignin-based carbon fiber precursor as described in claim 1, characterized in that: The connecting seat includes a base plate (401) and an annular side plate (402) fixedly connected to the base plate (401). A connecting plate (403) is fixedly connected to the top surface of the annular side plate (402). The connecting plate (403) is detachably connected to the mounting plate (1) by bolts. The transition connector (2) is connected to the inner side of the annular side plate (402) through the through hole (3). A plurality of the spinnerets (5) penetrate the base plate (401) and are fixedly connected to the base plate (401).

3. The universal spinneret assembly for lignin-based carbon fiber precursor as described in claim 2, characterized in that: The connecting assembly includes several vertical plates (801) located around the annular side plate (402). Two horizontal plates (802) are fixedly connected to the side of the vertical plate (801) near the annular side plate (402). The outer wall of the annular side plate (402) is provided with annular grooves corresponding to the horizontal plates (802). The ends of the horizontal plates (802) are located in the annular grooves. A control assembly for controlling the movement of the horizontal plates (802) is installed on the mounting cylinder (601).

4. The universal spinneret assembly for lignin-based carbon fiber precursor according to claim 3, characterized in that: The control component includes a connecting column (803) fixedly connected to the vertical plate (801). The connecting column (803) is located on the side of the vertical plate (801) away from the annular side plate (402). The connecting column (803) is slidably connected through the mounting cylinder (601). A threaded sleeve (804) is threadedly connected to the outside of the mounting cylinder (601). An upward-facing inclined groove is opened on the inner side of the threaded sleeve (804). An inclined surface adapted to the inclined groove is opened at the bottom of the end of the connecting column (803) away from the vertical plate (801). The ends of several connecting columns (803) with inclined surfaces are respectively located in the inclined groove.

5. The universal spinneret assembly for lignin-based carbon fiber precursor according to claim 4, characterized in that: A connecting rod (805) is fixedly connected to the side of the vertical plate (801) away from the annular side plate (402), and the connecting rod (805) slides through the mounting cylinder (601).

6. The universal spinneret assembly for lignin-based carbon fiber precursor according to claim 3, characterized in that: The heating unit (7) includes several heating electrodes and a heating power supply that provides energy to the heating electrodes. The heating electrodes located at the mounting cylinder (601) are fixedly connected to the vertical plate (801). The top surface of the support plate (602) is rotatably connected to an annular support (9), and the heating electrodes located on the support plate (602) are fixedly installed in the annular support (9).

7. The universal spinneret assembly for lignin-based carbon fiber precursor as described in claim 1, characterized in that: The tray (602) has an opening (10) in the middle, and a plurality of spinnerets (5) are arranged through the opening (10). A plurality of reinforcing ribs (11) are fixedly connected to the bottom surface of the tray (602), and the plurality of reinforcing ribs (11) are located around the opening (10).

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