A graphene filament fiber forming device

Abstract

The present invention is applicable to the field of graphene processing equipment and provides a forming device for graphene filament fibers, comprising a unit slow cooling tube, wherein the unit slow cooling tube is provided with a multi-point cooling medium supply tube which is sleeved on the semi-finished graphene filament fibers, and a plurality of unit heat exchange tubes are interspersed around the multi-point cooling medium supply tube; the plurality of unit heat exchange tubes can continuously and efficiently provide a cold source from the perspective of multi-point independent dispersion, so as to stably supply the cold source for high-precision slow cooling operation; the unit heat exchange tube is provided with a supply tube body, and a U-shaped through cavity is provided on the main body of the supply tube body; the cooling medium enters from one end of the through cavity, flows into the elastic heat-conducting tube provided at the U-shaped bottom of the through cavity for slow cooling heat exchange, and then flows out through the other end of the through cavity, so as to ensure that the cooling medium inside the elastic heat-conducting tube at the slow cooling heat exchange is continuously updated, and stably supply the cold source for high-precision slow cooling operation.

Description

Technical Field

[0001] The present invention relates to the field of graphene processing equipment, and in particular to a graphene filament fiber forming device. Background Art

[0002] Graphene fiber is a new type of carbon fiber with natural graphite as the initial raw material. It has good mechanical properties, electrical properties and thermal conductivity. It can be used in conductive fabrics, heat dissipation, thermal energy storage and other fields. Introducing other substances into graphene fibers can also obtain graphene composite fibers with specific functions.

[0003] Currently, there are many methods for preparing graphene fibers. Among them, a method for preparing graphene-polyester nanocomposite fibers (CN105200547B) invented by Nantong Johnson Graphene Technology Co., Ltd. provides a preparation step for graphene composite fibers, which specifically includes spinning, slow cooling, molding, oiling, stretching, and winding.

[0004] Before the above-mentioned molding and production steps, a slow cooling stage is required, that is, the graphene filament fibers need to be gradually cooled down. The cooling medium used for cooling will gradually increase in temperature toward the side close to the graphene filament fibers during the heat exchange process. Even if the cooling medium can be driven to move and mix by stirring or other means, it is all adjusted as a whole, and the adjustment range is limited. The overall temperature will increase to a certain extent, and it cannot provide a stable cold source well, resulting in the problem of insufficient accuracy in the slow cooling stage. Summary of the Invention

[0005] (1) Technical problems solved

[0006] The purpose of an embodiment of the present invention is to provide a forming device for graphene filament fibers, aiming to solve the slow cooling link, which requires gradually cooling the graphene filament fibers. The cooling medium used for cooling will gradually increase in temperature toward the side close to the graphene filament fibers during the heat exchange process. Even if the cooling medium can be driven to move and mix by stirring or other means, it is all internally regulated as a whole, and the adjustment range is limited. The overall temperature will increase to a certain extent, and it cannot provide a stable cold source well, resulting in the problem of insufficient accuracy in the slow cooling link.

[0007] (2) Technical solution

[0008] Specifically: A graphene filament molding device includes a molding tank, wherein a slow cooling pipe assembly is installed inside the molding tank. The slow cooling pipe assembly is composed of multiple unit slow cooling pipes with successively lower temperatures, and completes a slow cooling environment operation to be used for subsequent molding; each unit slow cooling pipe is provided with a multi-point cooling medium supply pipe that is sleeved on the semi-finished graphene filament fiber, and multiple unit heat exchange pipes are movably interspersed on the pipe wall around the multi-point cooling medium supply pipe;

[0009] The multiple unit heat exchange tubes are distributed in multiple groups of rings along the axial center line of the multi-point cooling medium supply tube, and the multiple unit heat exchange tubes in each group of rings are distributed in a ring array around the tube wall of the multi-point cooling medium supply tube; the multiple unit heat exchange tubes can provide a cold source continuously and efficiently from the perspective of multi-point independent dispersion, and are used to stably supply the cold source for high-precision slow cooling operation; wherein, a supply pipe body is provided on the unit heat exchange tube, and a U-shaped through cavity is opened on the main body of the supply pipe body; the cooling medium enters from one end of the through cavity, flows into the elastic heat-conducting pipe provided at the U-shaped bottom of the through cavity for slow cooling heat exchange, and then flows out through the other end of the through cavity, which is used to ensure that the cooling medium inside the elastic heat-conducting pipe at the slow cooling heat exchange is continuously updated, and a stable cold source is supplied for high-precision slow cooling operation.

[0010] The semi-finished graphene filament fibers are introduced into the multi-point cooling medium supply tube on the unit slow cooling tube for slow cooling treatment. The cooling medium enters from one end of the through cavity, flows into the elastic heat-conducting tube at the U-shaped bottom of the through cavity, performs slow cooling heat exchange on the semi-finished graphene filament fibers, and then flows out through the other end of the through cavity, so that the cooling medium inside the elastic heat-conducting tube at the slow cooling heat exchange point is continuously updated to maintain a constant temperature. On this basis, after being expanded to a high coverage rate of multiple unit heat exchange tubes, multiple groups of unit heat exchange tubes are distributed in a ring array around the tube wall of the multi-point cooling medium supply tube; the multiple unit heat exchange tubes are realized to provide a cold source continuously and efficiently from the perspective of multi-point independent dispersion, ensuring a constant temperature and achieving a stable supply of cold source for high-precision slow cooling operation.

[0011] In the solution of the present invention, a support tube is provided on the multi-point cooling medium supply tube, a heat conduction tube is inserted inside the support tube, and a plurality of insertion holes for movable insertion of the unit heat exchange tube are opened on the support tube; an external position adjustment tube is provided on the outside of the multi-point cooling medium supply tube, and a plurality of telescopic adjustment parts are fixed on the external position adjustment tube; the plurality of telescopic adjustment parts are connected to the plurality of unit heat exchange tubes in a one-to-one correspondence; by adjusting the length of the telescopic adjustment part itself, the insertion depth of the unit heat exchange tube inside the insertion hole can be adjusted to adjust the heat conduction rate to different degrees.

[0012] In a further solution, the supply pipe body is provided with an arc-shaped notch at the end thereof, and the elastic heat-conducting pipe is arranged inside the arc-shaped notch.

[0013] In a further embodiment, the position adjustment tube is provided with an external fixed tube body, a plurality of support columns distributed in a ring array are fixed inside the external fixed tube body, and the other ends of the support columns are fixed to the multi-point cooling medium supply tube; a plurality of telescopic adjustment members are distributed and fixed in an array on the external fixed tube body;

[0014] The telescopic adjustment member is provided with a shell which is fixed on the outer fixed tube body; a cylinder telescopic rod is fixed inside the shell which is connected to the unit heat exchange tube; and a telescopic sensor is installed on the cylinder telescopic rod.

[0015] In the optimized solution, the cylinder telescopic rod is fixed with a connecting plate at the end away from the outer shell, and a mounting plate is fixed on the connecting plate, and a plurality of screw holes are provided on the mounting plate; the supply pipe body is provided with a plurality of fixing holes on the side wall away from the end of the elastic heat-conducting pipe, and the plurality of fixing holes correspond one-to-one to the plurality of screw holes, and the bolts are inserted into the fixing holes and the screw holes to complete the connection between the cylinder telescopic rod and the unit heat exchange pipe.

[0016] In the solution of the present invention, two inlet connecting pipe structures are installed on the unit heat exchange tube in conjunction with the through cavity, and the inlet connecting pipe structures are connected to the through cavity; a mounting seat is provided on the inlet connecting pipe structure, and the mounting seat is installed on the through cavity; an elastic connecting pipe is inserted into the mounting seat, and the elastic connecting pipe is fixed to the mounting seat by a reinforcement ring; the elastic connecting pipe is connected to the cooling medium inlet ring at the end away from the mounting seat, and is connected to the inlet cavity and the outlet cavity separated from each other provided inside the cooling medium inlet ring; two cooling medium guide pipes are provided on the cooling medium inlet ring, which are respectively connected to the inlet cavity and the outlet cavity.

[0017] In the solution of the present invention, a transition pipe is provided on the multi-point cooling medium supply pipe, and an insulation pipe is connected to the transition pipe, and the insulation pipe is arranged between two unit slow cooling pipes; multiple insulation pads are installed inside the insulation pipe to block the mutual temperature influence between multiple unit slow cooling pipes.

[0018] In the solution of the present invention, a feed pipe is provided at the end of the molding tank; a support base is installed at the bottom of the molding tank; the support base and the molding tank are fixed by multiple supporting legs; a cooling medium supply assembly is installed on the support base; and multiple adjustable speed liquid pumps are installed inside the cooling medium supply assembly for adjusting the supply of cooling media at different speeds.

[0019] In a further solution, a support plate is provided on the support seat, and a plurality of extended support plates distributed in an array are arranged around the support plate, and the extended support plates are used to improve the supporting force of the support seat, and mounting holes are opened on the extended support plates for inserting limit pins for fixing.

[0020] (3) Beneficial effects

[0021] Compared with the prior art, the graphene filament fiber forming device of the present invention has the following advantages:

[0022] The semi-finished graphene filament fibers are introduced into the multi-point cooling medium supply tube on the unit slow cooling tube for slow cooling treatment. The cooling medium enters from one end of the through cavity, flows into the elastic heat-conducting tube at the U-shaped bottom of the through cavity, performs slow cooling heat exchange on the semi-finished graphene filament fibers, and then flows out through the other end of the through cavity, so that the cooling medium inside the elastic heat-conducting tube at the slow cooling heat exchange point is continuously updated to maintain a constant temperature. On this basis, after being expanded to a high coverage rate of multiple unit heat exchange tubes, multiple groups of unit heat exchange tubes are distributed in a ring array around the tube wall of the multi-point cooling medium supply tube; the multiple unit heat exchange tubes are realized to provide a cold source continuously and efficiently from the perspective of multi-point independent dispersion, ensuring a constant temperature and achieving a stable supply of cold source for high-precision slow cooling operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 Schematic diagram of the structure of the graphene filament fiber forming device of the present invention;

[0024] Figure 2 Schematic diagram of the structure of the slow cooling tube assembly in the graphene filament fiber forming device of the present invention;

[0025] Figure 3 for Figure 2 Schematic diagram of the structure of the slow cooling tube in the middle unit;

[0026] Figure 4 for Figure 3 A schematic diagram of the structure of the telescopic adjustment member;

[0027] Figure 5 for Figure 3 Schematic diagram of the structure after the external regulating pipe of the middle unit slow cooling pipe is removed;

[0028] Figure 6 for Figure 5 A in the middle is an enlarged structural diagram;

[0029] Figure 7 for Figure 6 Schematic diagram of the structure of the heat exchange tube in the middle unit;

[0030] Figure 8 for Figure 7 Schematic diagram of the structure after the heat exchange tube of the middle unit is turned over;

[0031] Figure 9 for Figure 7 Schematic diagram of the structure after the middle unit heat exchange tube and the inlet connecting pipe structure are transferred;

[0032] Figure 10 for Figure 5 Schematic diagram of the structure after the unit heat exchange tube is removed;

[0033] Figure 11 for Figure 10 The enlarged structural diagram at B in the middle;

[0034] Figure 12 for Figure 7 Schematic diagram of the transverse cross-sectional structure of the middle unit heat exchange tube.

[0035] In the accompanying drawings:

[0036] Feed pipe 1, forming tank 2, support leg 3, support base 4, slow cooling pipe assembly 5, cooling medium supply assembly 6;

[0037] Support plate 41, extended support plate 42, mounting hole 43;

[0038] Unit slow cooling tube 51;

[0039] Insulation pipe 511, cooling medium introduction ring 512, external position adjustment pipe 513, multi-point cooling medium supply pipe 514, cooling medium guide pipe 515;

[0040] Telescopic adjustment member 5131, external fixed tube 5132, support column 5133;

[0041] Support tube 5141, unit heat exchange tube 5142, heat conduction tube 5143, transition tube 5144, introduction connecting tube structure 5145, insertion hole 5146;

[0042] Housing 51311, cylinder telescopic rod 51312, connecting plate 51313, mounting plate 51314, screw hole 51315;

[0043] Elastic heat conducting pipe 51421, arc-shaped notch 51422, supply pipe body 51423, fixing hole 51424, through cavity 51425;

[0044] Elastic connecting tube 51451 , reinforcement ring 51452 , mounting seat 51453 . DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0046] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0047] In the embodiment of the present invention, Figure 1-3, 5-8 and 12 show: a graphene filament fiber forming device, comprising a forming tank 2, wherein the forming tank 2 has a slow cooling pipe assembly 5 installed therein, the slow cooling pipe assembly 5 being composed of a plurality of unit slow cooling pipes 51 with successively lowered temperatures, and completing a slow cooling environment operation for subsequent forming;

[0048] Therefore, during the preparation of graphene filament fibers, the semi-finished graphene filament fibers are introduced into the slow cooling tube assembly 5 inside the molding tank 2, and are subjected to slow cooling treatment in sequence using a plurality of unit slow cooling tubes 51 with successively lower temperatures. After the slow cooling treatment, the semi-finished graphene filament fibers are subjected to molding treatment by passing through the molding tank 2.

[0049] The unit slow cooling tube 51 is provided with a multi-point cooling medium supply tube 514 which is sleeved on the semi-finished graphene filament fiber. A plurality of unit heat exchange tubes 5142 are movably inserted on the tube wall around the multi-point cooling medium supply tube 514.

[0050] The multiple unit heat exchange tubes 5142 are distributed in multiple groups of rings along the axial centerline of the multi-point cooling medium supply tube 514. The multiple unit heat exchange tubes 5142 in each group of rings are distributed in a ring array around the tube wall of the multi-point cooling medium supply tube 514. This allows the multiple unit heat exchange tubes 5142 to continuously and efficiently provide a cooling source from multiple independent and dispersed points, thereby providing a stable cooling source for high-precision slow cooling operations.

[0051] Among them, a supply pipe body 51423 is provided on the unit heat exchange tube 5142, and a U-shaped through cavity 51425 is opened on the main body of the supply pipe body 51423; the cooling medium enters from one end of the through cavity 51425, flows into the elastic heat conductive pipe 51421 provided at the U-shaped bottom of the through cavity 51425 for slow cooling and heat exchange, and then flows out through the other end of the through cavity 51425, which is used to ensure that the cooling medium inside the elastic heat conductive pipe 51421 at the slow cooling and heat exchange is continuously updated, and a stable cooling source is provided for high-precision slow cooling operation.

[0052] Therefore, after the semi-finished graphene filament fibers are introduced into the multi-point cooling medium supply tube 514 on the unit slow cooling tube 51, slow cooling treatment is carried out. The cooling medium enters from one end of the through cavity 51425, flows into the elastic heat-conducting tube 51421 at the U-shaped bottom of the through cavity 51425, and performs slow cooling heat exchange on the semi-finished graphene filament fibers, and then flows out through the other end of the through cavity 51425, so as to realize the cooling heat exchange at one point. The cooling medium inside the elastic heat-conducting tube 51421 is continuously updated to maintain a constant temperature. On this basis, after being expanded to a high coverage rate of multiple unit heat exchange tubes 5142, multiple groups of unit heat exchange tubes 5142 are distributed in a ring array around the tube wall of the multi-point cooling medium supply tube 514; the multiple unit heat exchange tubes 5142 are realized to provide a cold source continuously and efficiently from the perspective of multi-point independent dispersion, ensuring a constant temperature and achieving a stable supply of cold source for high-precision slow cooling operation.

[0053] It should be noted that in the industrial refrigeration process, a low-temperature fluid is needed to cool another high-temperature fluid through a heat exchanger. The low-temperature fluid is called a cooling medium.

[0054] In the embodiment of the present invention, Figure 3 、 5 , 6, 10 and 11: the multi-point cooling medium supply pipe 514 is provided with a support pipe 5141, a heat conduction pipe 5143 is inserted into the support pipe 5141, and a plurality of insertion holes 5146 for movably inserting the unit heat exchange pipe 5142 are opened on the support pipe 5141;

[0055] The multi-point cooling medium supply pipe 514 is sheathed with an external position adjustment pipe 513 , and a plurality of telescopic adjustment members 5131 are fixed on the external position adjustment pipe 513 ;

[0056] Multiple telescopic adjustment members 5131 are connected to multiple unit heat exchange tubes 5142 in a one-to-one correspondence; by adjusting the length of the telescopic adjustment member 5131 itself, the insertion depth of the unit heat exchange tube 5142 inside the insertion hole 5146 is adjusted to adjust the heat conduction rate to different degrees.

[0057] Therefore, after the telescopic adjustment member 5131 is started to expand and contract, the insertion depth of the unit heat exchange tube 5142 inside the insertion hole 5146 is adjusted to adjust the distance between the unit heat exchange tube 5142 and the semi-finished graphene filament fiber, thereby achieving different degrees of adjustment of the heat conduction rate, so as to adapt to the moving speed of the semi-finished graphene filament fiber; at the same time, multiple local telescopic adjustment members 5131 disperse the corresponding local multiple unit heat exchange tubes 5142 to adjust the unit heat exchange tube 5142 out of the insertion hole 5146, so as to achieve the distribution density of the unit heat exchange tube 5142 in the multi-point cooling medium supply pipe 514, so as to adjust the heat conduction rate, so as to adapt to the moving speed of the semi-finished graphene filament fiber and ensure constant temperature and slow cooling.

[0058] In the embodiment of the present invention, Figure 7-9 As shown, the supply pipe body 51423 is provided with an arc-shaped notch 51422 at the end thereof, and the elastic heat-conducting pipe 51421 is arranged inside the arc-shaped notch 51422 .

[0059] The elastic deformation of the elastic heat-conducting tube 51421 inside the arc-shaped notch 51422, combined with the adjustment extrusion driven by the telescopic adjustment member 5131, realizes the tightness of the elastic heat-conducting tube 51421 and achieves fine-tuning of the heat conduction rate to different degrees, so as to adapt to the slight changes in the movement speed of the semi-finished graphene filament fiber and ensure constant temperature and slow cooling.

[0060] In the embodiment of the present invention, Figure 3 and Figure 4 As shown: the position external adjustment tube 513 is provided with an external fixed tube body 5132, and a plurality of support columns 5133 distributed in a ring array are fixed inside the external fixed tube body 5132, and the other ends of the support columns 5133 are fixed to the multi-point cooling medium supply tube 514;

[0061] A plurality of telescopic adjustment members 5131 are distributed in an array and fixed on the outer fixed tube 5132;

[0062] The telescopic adjustment member 5131 is provided with a housing 51311, which is fixed to the outer fixed tube body 5132; a cylinder telescopic rod 51312 is fixed inside the housing 51311 (in detail, the cylinder telescopic rod 51312 can also be replaced with a hydraulic telescopic rod, or with a telescopic adjustment mechanism that cooperates with a screw and a nut, etc., and the specific structure is not limited, as long as it can adjust the insertion depth of the unit heat exchange tube 5142 in the insertion hole 5146, and adjust the distance between the unit heat exchange tube 5142 and the semi-finished graphene filament fiber, thereby achieving different degrees of adjustment of the heat conduction rate), and the cylinder telescopic rod 51312 is connected to the unit heat exchange tube 5142;

[0063] The cylinder telescopic rod 51312 is equipped with a telescopic sensor (the telescopic sensor is a prior art and can be purchased directly on the market, and is not shown in the attached drawings, so it will not be elaborated on here).

[0064] Therefore, through the action of the telescopic sensor, the moving speed of the semi-finished graphene filament fiber can be well sensed, and the penetration depth of the unit heat exchange tube 5142 inside the insertion hole 5146 can be adaptively adjusted by using the cylinder telescopic rod 51312, so as to adjust the distance between the unit heat exchange tube 5142 and the semi-finished graphene filament fiber, thereby achieving different degrees of adjustment of the heat conduction rate; at the same time, it is diffused from a single point to multiple points, and multiple local telescopic adjustment parts 5131 are dispersed to act on the corresponding multiple local unit heat exchange tubes 5142, and the unit heat exchange tube 5142 is adjusted out of the insertion hole 5146, so as to achieve the distribution density of the unit heat exchange tube 5142 in the multi-point cooling medium supply pipe 514, so as to adjust the heat conduction rate to adapt to the moving speed of the semi-finished graphene filament fiber and ensure constant temperature and slow cooling.

[0065] In the embodiment of the present invention, Figure 4-9 As shown: the cylinder telescopic rod 51312 is fixed with a connecting plate 51313 at one end away from the housing 51311, and a mounting plate 51314 is fixed on the connecting plate 51313, and a plurality of screw holes 51315 are opened on the mounting plate 51314;

[0066] The supply tube body 51423 is provided with a plurality of fixing holes 51424 on the side wall away from one end of the elastic heat conducting tube 51421. The plurality of fixing holes 51424 correspond one-to-one to the plurality of screw holes 51315. When the bolts are inserted into the fixing holes 51424 and the screw holes 51315, the connection between the cylinder telescopic rod 51312 and the unit heat exchange tube 5142 is completed.

[0067] In the embodiment of the present invention, Figure 3 and 9 As shown: two inlet connecting pipe structures 5145 are installed on the unit heat exchange tube 5142 to match the through cavity 51425, and the inlet connecting pipe structures 5145 are connected to the through cavity 51425;

[0068] The inlet connecting pipe structure 5145 is provided with a mounting seat 51453, which is mounted on the through cavity 51425. An elastic connecting pipe 51451 is inserted through the mounting seat 51453, and the elastic connecting pipe 51451 is fixed to the mounting seat 51453 by a reinforcement ring 51452.

[0069] The elastic connecting tube 51451 is connected to the cooling medium introduction ring 512 at one end away from the mounting seat 51453 and communicates with the separate introduction cavity and outlet cavity defined within the cooling medium introduction ring 512 (specifically, the cooling medium introduction ring 512 is fixed to the external position adjustment tube 513).

[0070] Two cooling medium guide tubes 515 are provided on the cooling medium introduction ring 512 and are communicated with the introduction cavity and the outlet cavity respectively.

[0071] Therefore, the cooling medium that has not undergone heat exchange enters the inlet cavity through one of the cooling medium flow guide tubes 515, and enters the interior of one end of the through cavity 51425 through one of the elastic connecting tubes 51451, flows into the elastic heat-conducting tube 51421 at the U-shaped bottom of the through cavity 51425 to perform slow cooling and heat exchange on the semi-finished graphene filament fibers, and then flows out through the other end of the through cavity 51425, enters another elastic connecting tube 51451, and then enters the interior of the outlet cavity, and finally is exported through another cooling medium flow guide tube 515; the cooling medium inside the elastic heat-conducting tube 51421 at the slow cooling and heat exchange is continuously updated to maintain a constant temperature.

[0072] In the embodiment of the present invention, Figure 2 、 5 As shown in FIG10 , a transition pipe 5144 is provided on the multi-point cooling medium supply pipe 514 , and a heat-insulating pipe 511 is connected to the transition pipe 5144 . The heat-insulating pipe 511 is provided between the two unit slow cooling pipes 51 .

[0073] A plurality of thermal insulation pads are installed inside the thermal insulation tube 511 to prevent the temperature of the plurality of unit slow cooling tubes 51 from affecting each other.

[0074] Start multiple unit slow cooling tubes 51 with lower temperatures in sequence to complete the slow cooling operation; and multiple insulation pads block the mutual influence of the temperatures between the multiple unit slow cooling tubes 51, so that the temperatures between multiple different unit slow cooling tubes 51 are independent of each other, and independent constant temperatures are achieved, realizing a stable supply of cooling source for high-precision slow cooling operation.

[0075] In the embodiment of the present invention, Figure 1 As shown: a feed pipe 1 is provided at the end of the molding tank 2; a support base 4 is installed at the bottom of the molding tank 2; the support base 4 and the molding tank 2 are fixed by a plurality of support legs 3;

[0076] A cooling medium supply assembly 6 is mounted on the support base 4 ; a plurality of speed-adjustable liquid pumps are mounted inside the cooling medium supply assembly 6 for adjusting the supply of cooling medium at different speeds.

[0077] By adjusting the adjustable speed liquid pump, the cooling medium at different speeds is adjusted to achieve a moving speed suitable for the semi-finished graphene filament fiber, ensuring constant temperature and slow cooling.

[0078] In the embodiment of the present invention, Figure 1 As shown: the support seat 4 is provided with a support plate 41, and a plurality of extended support plates 42 distributed in an array are arranged around the support plate 41, and the extended support plates 42 are used to improve the supporting force of the support seat 4, and the extended support plates 42 are provided with mounting holes 43 for inserting limit pins for fixing.

[0079] The working principle of the present invention is:

[0080] 1. After the semi-finished graphene filament fibers are introduced into the multi-point cooling medium supply tube 514 on the unit slow cooling tube 51 for slow cooling treatment, the cooling medium enters from one end of the through cavity 51425, flows into the elastic heat-conducting tube 51421 at the U-shaped bottom of the through cavity 51425, and performs slow cooling heat exchange on the semi-finished graphene filament fibers, and then flows out through the other end of the through cavity 51425, so that the cooling medium inside the elastic heat-conducting tube 51421 at the slow cooling heat exchange point is continuously updated to maintain a constant temperature. On this basis, after the high coverage rate is expanded to multiple unit heat exchange tubes 5142, multiple groups of unit heat exchange tubes 5142 are distributed in a ring array around the tube wall of the multi-point cooling medium supply tube 514; the multiple unit heat exchange tubes 5142 are realized to provide a cold source continuously and efficiently from the perspective of multi-point independent dispersion, ensuring a constant temperature, and achieving a stable cold source supply for high-precision slow cooling operation;

[0081] 2. After the telescopic adjustment member 5131 is activated to extend and retract, the insertion depth of the unit heat exchange tube 5142 in the insertion hole 5146 is adjusted to adjust the distance between the unit heat exchange tube 5142 and the semi-finished graphene filament fiber, thereby adjusting the heat conduction rate to different degrees to adapt to the moving speed of the semi-finished graphene filament fiber; at the same time, multiple local telescopic adjustment members 5131 disperse the corresponding multiple local unit heat exchange tubes 5142 to adjust the unit heat exchange tubes 5142 from the insertion hole 5146, thereby achieving a distribution density of the unit heat exchange tubes 5142 in the multi-point cooling medium supply pipe 514, thereby adjusting the heat conduction rate to adapt to the moving speed of the semi-finished graphene filament fiber and ensuring constant temperature and slow cooling;

[0082] 3. The elastic deformation of the elastic heat pipe 51421 inside the arc-shaped notch 51422, combined with the adjustment and extrusion driven by the telescopic adjustment member 5131, realizes the tightness of the elastic heat pipe 51421 and achieves fine adjustment of the heat conduction rate to different degrees, so as to adapt to the slight change in the movement speed of the semi-finished graphene filament fiber and ensure constant temperature and slow cooling;

[0083] 4. Through the action of the telescopic sensor, the moving speed of the semi-finished graphene filament fiber can be well sensed, and the penetration depth of the unit heat exchange tube 5142 inside the insertion hole 5146 can be adaptively adjusted by using the cylinder telescopic rod 51312, so as to adjust the distance between the unit heat exchange tube 5142 and the semi-finished graphene filament fiber, thereby achieving different degrees of adjustment of the heat conduction rate; at the same time, it is diffused from a single point to multiple points, and multiple local telescopic adjustment parts 5131 are dispersed to act on the corresponding multiple local unit heat exchange tubes 5142, and the unit heat exchange tube 5142 is adjusted out of the insertion hole 5146, so as to achieve the distribution density of the unit heat exchange tube 5142 in the multi-point cooling medium supply pipe 514, so as to adjust the heat conduction rate to adapt to the moving speed of the semi-finished graphene filament fiber and ensure constant temperature and slow cooling.

[0084] In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0085] In the description of the present invention, although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A graphene filament fiber forming device, characterized in that: The molding tank includes a slow cooling pipe assembly installed inside the molding tank. The slow cooling pipe assembly is composed of a plurality of slow cooling pipes with successively lowered temperatures, and completes a slow cooling environment operation for subsequent molding. The unit slow cooling tube is provided with a multi-point cooling medium supply tube sleeved on the semi-finished graphene filament fiber, and a plurality of unit heat exchange tubes are movably interspersed on the tube wall around the multi-point cooling medium supply tube; The multiple unit heat exchange tubes are distributed in multiple groups of rings along the axial centerline of the multi-point cooling medium supply pipe. The multiple unit heat exchange tubes in each group of rings are distributed in a ring array around the pipe wall of the multi-point cooling medium supply pipe. The multiple unit heat exchange tubes can efficiently and continuously provide cooling sources from the perspective of multi-point independent dispersion, which is used to stably supply cooling sources and perform high-precision slow cooling operations. The unit heat exchange tube is provided with a supply tube body, and a U-shaped through-hole is provided on the main body of the supply tube body; the cooling medium enters from one end of the through-hole, flows into the elastic heat-conducting tube provided at the U-shaped bottom of the through-hole for slow cooling and heat exchange, and then flows out through the other end of the through-hole, which is used to ensure that the cooling medium inside the elastic heat-conducting tube at the slow cooling and heat exchange is continuously updated, providing a stable cooling source for high-precision slow cooling operation; A feed pipe is provided at the end of the molding tank; a support base is installed at the bottom of the molding tank; the support base and the molding tank are fixed by a plurality of support legs; A cooling medium supply assembly is installed on the support base; a plurality of adjustable speed liquid pumps are installed inside the cooling medium supply assembly for adjusting the supply of cooling medium at different speeds; the support base is provided with a support plate, and a plurality of extended support plates are arranged around the support plate in an array, and the extended support plates are used to improve the supporting force of the support base, and the extended support plates are provided with mounting holes for inserting limit pins for fixing; The multi-point cooling medium supply pipe is provided with a support pipe, a heat conduction pipe is inserted into the support pipe, and a plurality of insertion holes for movably inserting the unit heat exchange pipe are opened on the support pipe; An external position adjustment tube is provided on the outer sleeve of the multi-point cooling medium supply tube, and a plurality of telescopic adjustment parts are fixed on the external position adjustment tube; The plurality of telescopic adjustment members are connected to the plurality of unit heat exchange tubes in a one-to-one correspondence; by adjusting the length of the telescopic adjustment member itself, the insertion depth of the unit heat exchange tube in the insertion hole is adjusted, and the heat conduction rate is adjusted to different degrees.

2. The graphene filament fiber forming device according to claim 1, characterized in that: The supply pipe body is provided with an arc-shaped notch at the end thereof, and the elastic heat-conducting pipe is arranged inside the arc-shaped notch.

3. The graphene filament fiber forming device according to claim 1, characterized in that: The position external adjustment tube is provided with an external fixed tube body, and a plurality of support columns distributed in a circular array are fixed inside the external fixed tube body, and the other ends of the support columns are fixed to the multi-point cooling medium supply tube; A plurality of telescopic adjustment members are distributed and fixed in an array on the external fixed tube body; The telescopic adjustment member is provided with a shell, which is fixed on the outer fixed tube body; a cylinder telescopic rod is fixed inside the shell, and the cylinder telescopic rod is connected to the unit heat exchange tube; A telescopic sensor is installed on the telescopic rod of the cylinder.

4. The graphene filament fiber forming device according to claim 3, characterized in that: The cylinder telescopic rod is fixed with a connecting plate at one end away from the housing, the connecting plate is fixed with a mounting plate, and the mounting plate is provided with a plurality of screw holes; The supply pipe body has a plurality of fixing holes on its side wall away from one end of the elastic heat conducting pipe. The plurality of fixing holes correspond to the plurality of screw holes one by one. The bolts are inserted into the fixing holes and the screw holes to complete the connection between the cylinder telescopic rod and the unit heat exchange pipe.

5. The graphene filament fiber forming device according to claim 1, characterized in that: The unit heat exchange tube is equipped with two inlet connecting pipe structures in coordination with the through cavity, and the inlet connecting pipe structures are in communication with the through cavity; The inlet connecting pipe structure is provided with a mounting seat, which is mounted on the through cavity; an elastic connecting pipe is inserted into the mounting seat, and the elastic connecting pipe is fixed to the mounting seat by a reinforcement ring; The elastic connecting tube is connected to the cooling medium introduction ring at one end away from the mounting seat and is communicated with the cooling medium introduction ring, which is provided with an introduction cavity and an outlet cavity separated from each other. The cooling medium inlet ring is provided with two cooling medium guide pipes which are communicated with the inlet cavity and the outlet cavity respectively.

6. The graphene filament forming device according to claim 1, characterized in that: The multi-point cooling medium supply pipe is provided with a transition pipe, the transition pipe is connected to a heat insulation pipe, and the heat insulation pipe is arranged between the two unit slow cooling pipes; Multiple insulation pads are installed inside the insulation pipe to block the temperature influence between multiple unit slow cooling pipes.

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