A drying device for large-tow carbon fiber

Abstract

The present invention relates to the technical field of carbon fiber processing, and in particular to a drying device for large-tow carbon fibers, comprising a guiding and adjusting device and a beam-splitting and drying device. A stepper motor is started to drive a shaft cylinder arranged at the front end to rotate, and a belt arranged between the front and rear sides can drive the shaft cylinder arranged at the rear end to rotate synchronously, and a small gear plate drives three large gear plates to rotate. While the large gear plates rotate, a crank and a blade plate can be driven to rotate around a hollow column. The air inside the output pipes arranged on the left and right sides is heated by an electric heating wire assembly, and then enters the interior of an upper plate through a cavity box. The hot air enters the interior of a sleeve ring through the interior of the upper plate, and the hot air inside the sleeve enters the interior of the leaf plate through a small through groove opened in the hollow column and a large through groove opened in the leaf plate. The present invention can guide, transport and dry and solidify large-tow carbon fiber strands synchronously through the above-mentioned arrangement, thereby improving the drying and shaping efficiency of large-tow carbon fiber processing.

Description

Technical Field

[0001] The invention relates to the technical field of carbon fiber processing, in particular to a drying device for large-tow carbon fibers. Background Art

[0002] In the prior art, when sizing and drying carbon fiber tows, the carbon fiber tows are guided and transmitted horizontally, the upper and lower film layers soaked with slurry are brought into contact with the tows, and heated and dried by electric hot rollers and subsequent drying ovens to form a film on the surface of the single fibers in the tows. The sizing and drying treatment of carbon fiber tows by electric hot rollers is taken as an example.

[0003] The large-tow carbon fiber line is firstly treated with sizing and soaking, and then dried and solidified. The large-tow carbon fiber formed by the stranding process is partially subjected to subsequent drying and solidification molding treatment using a drying box equipment. It is not convenient to guide and transport the large-tow carbon fiber strands and dry and solidify them simultaneously, resulting in low drying and shaping efficiency of the large-tow carbon fiber processing, and it is not convenient to recover the waste heat of the drying hot air from the drying treatment, resulting in large heat energy loss. Therefore, a drying device for large-tow carbon fiber is proposed to address the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a drying device for large-tow carbon fibers. A drying box is used for subsequent drying, curing and molding of the large-tow carbon fibers formed by stranding. This is not convenient for guiding and transporting the large-tow carbon fiber strands and for simultaneous drying and curing. This results in low drying and shaping efficiency for the large-tow carbon fiber processing, and is not convenient for recovering waste heat from the drying hot air, resulting in a large loss of heat energy.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A drying device for large-tow carbon fibers, comprising a guide adjustment device and a beam drying device, wherein the beam drying device is arranged on the top of the guide adjustment device, and the guide adjustment device comprises an upper plate, a lower plate, a bearing ring, a large gear plate, a first solid column, a shaft cylinder, a small gear plate, a stepping motor, a sleeve ring, a lower cavity cylinder, an upper cavity cylinder, a hollow column, a leaf plate, a second solid column, a breathable gasket, a crank, a threaded sleeve and a belt, wherein the lower plate is fixedly arranged at the bottom end of the upper plate, a bearing ring is fixedly arranged on the inner wall of the bottom end of the lower plate, an annular groove is provided at the bottom of the large gear plate, the top of the bearing ring is in contact with the annular groove at the bottom of the large gear plate, the first solid column is fixedly arranged on the top end of the large gear plate, a shaft cylinder is rotatably arranged on the inner wall of the bottom end of the lower plate, and a small gear is fixedly arranged on the outer side of the shaft cylinder The wheel disc, the top end of the shaft cylinder arranged at the front end is fixedly arranged with the end of the main shaft of the stepper motor, the inside of the outer support plate of the stepper motor and the inside of the top end of the lower disc are both threadedly assembled with the external stud, and three guide holes are arranged at intervals inside the upper disc, and a hollow collar and a hollow lower cavity cylinder are fixed inside the guide hole opened in the upper disc, and the top end of the lower cavity cylinder is fixedly connected with a hollow upper cavity cylinder, and the bottom end of the collar is fixedly connected with a hollow column, the outer side of the hollow column is rotatably arranged with the blade disc, and a second solid column is fixedly arranged at the bottom end of the blade disc, and a breathable gasket is fixedly arranged on the side of the blade disc close to the central axis of the guide hole opened in the upper disc, and two slots are arranged inside the crank, and the outer sides of the first solid column and the second solid column are respectively connected with the crank opening The slot holes are rotatably arranged, and belts are in contact with the outer sides of the shaft tubes arranged at the front and rear ends. The beam drying device includes a connecting plate, an air pump device, a branch pipe, a cavity box, an electric heating wire assembly, an output pipe, a frame plate, a guide structure, an air collecting structure, a connecting tube, an air guide tube and a ring frame. The air pump device is fixedly arranged on the top of the connecting plate, and the two branch pipes symmetrically arranged front and back are fixedly connected to the air suction pipe at the top of the air pump device, and the two output pipes symmetrically arranged left and right are fixedly connected to the exhaust pipe at the bottom of the air pump device. The output pipe is fixedly connected to a hollow cavity box at one end away from the air pump device, and an electric heating wire assembly is fixedly arranged inside the cavity box. The internal threaded hole at the bottom of the frame plate and the internal threaded hole at the top of the upper plate are connected through external studs. A threaded assembly is arranged, and a guide structure is arranged between the inner sides of the frame plates arranged on the left and right sides, and the guide structure includes a hollow rod, a hollow roller and a hollow cylinder, and three hollow rollers are fixedly connected at intervals inside the hollow rod, and two hollow cylinders are symmetrically distributed and fixed on both sides of the left and right ends of the hollow rod, and an air collecting structure is arranged on the outside of the hollow roller, and the air collecting structure includes a disc ring, a hollow platform, a straight tube and a pad, and the hollow disc ring is fixedly connected with the hollow platform, and the end of the hollow platform away from the disc ring is fixedly connected with a straight tube, and a pad is fixedly arranged at the bottom end of the straight tube, and the right end of the hollow cylinder arranged on the right side is fixedly connected with a connecting tube, and the inner wall of the right end of the connecting tube is rotatably arranged with the air guide tube, and a ring frame is fixedly arranged on the outside of the air guide tube.The end of the hose fixedly connected to the right end of the air guide cylinder is fixedly connected to the top of the output pipe arranged on the right side, the annular groove opened on the outer side of the hollow cylinder is rotatably arranged inside the frame plate, the bottom end of the ring frame is fixedly arranged at the top of the upper plate, the branch pipe is fixedly connected to the upper cavity cylinder, the cavity box is fixedly connected to the inside of the upper plate, and the upper plates arranged on the front and rear sides are fixedly arranged with the connecting plate, and the tow carbon fibers dried by the electric hot pressing roller are wound through an external twisting device to form a large tow strand, and the above-mentioned large tow strand is placed inside the device, and the large tow strand passes through the holes at the bottom of the lower plate, between the rotating blades, in the middle of the ring, in the middle of the lower cavity cylinder, and in the middle of the upper cavity cylinder, and is guided and placed in the semicircular groove opened on the hollow roller, and the large tow strand at the bottom is tensioned and placed between the external electric roller groups, and the large tow strand is transported by the electric roller group, and the air inside the output pipes arranged on the left and right sides passes through After the heating wire assembly is heated and heated, it passes through the cavity box and enters the upper plate. Since the inner wall of the outer wall of the collar and the inner wall of the guide hole opened in the upper plate are connected through the circular hole, the hot air enters the collar through the upper plate. The hot air in the collar passes through the small through groove opened in the hollow column and the large through groove opened in the leaf disk and enters the leaf disk. The hot air is discharged through the breathable gasket set on the inner side of the leaf disk to perform subsequent drying and shaping of the large tow strands. The two hoses connected to the top of the output pipe on the right side are connected to the air guide cylinder. After the air pump device and the heating wire assembly are preheated, hot air flows inside the upper and lower pipelines of the air pump device. The hot air enters the hollow rod, hollow roller, and hollow cylinder through the connecting cylinder, and is discharged through the air outlet opened on the inner wall of the semicircular groove of the hollow roller, and is sprayed with hot air on the large tow strands, which plays a role in drying and auxiliary shaping of the large tow strands.

[0007] Preferably, three bearing rings, three large gear plates and one small gear plate are arranged inside the lower plate, and the three large gear plates are distributed on the left, middle and right sides, and the adjacent large gear plates are meshed with each other, and the small gear plate is meshed with the large gear plates distributed on the right side.

[0008] Preferably, thread grooves are provided on the outer side of the upper part of the first solid column, the outer side of the lower part of the hollow column, and the outer side of the lower part of the second solid column, and the threaded sleeve is threadedly assembled with the thread grooves provided on the first solid column, the thread grooves provided on the hollow column, and the thread grooves provided on the second solid column.

[0009] Preferably, the inner walls of the guide holes opened inside the outer wall of the collar and inside the upper plate are connected through circular holes, a small through groove is opened on the inner wall of the hollow column, and a large through groove is opened on the side of the blade disk close to the hollow column.

[0010] Preferably, a semicircular groove is provided on the outer side of the hollow roller, an air outlet is provided on the inner wall of the semicircular groove provided on the hollow roller, and an air suction hole is provided on the inner wall of one end of the disk ring close to the hollow roller.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. In the present invention, the stepper motor starts to drive the shaft cylinder arranged at the front end to rotate, and the belt arranged between the front and rear sides can drive the shaft cylinder arranged at the rear end to rotate synchronously, and drive the small gear plate to rotate, which is used to drive the three large gear plates to rotate, wherein the bearing ring is a rotation limiter of the large gear plate, which is used to ensure the horizontal and stable rotation of the large gear plate. While the large gear plate rotates, the crank and the blade plate can be driven to rotate around the hollow column, which can be used to synchronously adjust the angle of the end outlet structure of the large tow strand arranged in the multi-channel arrangement inside the guide adjustment device, and the air inside the output pipe arranged on the left and right sides After being heated by the electric heating wire assembly, the hot air enters the upper plate through the cavity box, and the hot air enters the ring through the upper plate. The hot air inside the ring enters the blade disk through the small through grooves opened inside the hollow column and the large through grooves opened inside the blade disk. The hot air is discharged through the breathable gasket set on the inner side of the blade disk to carry out subsequent drying and shaping of the large-tow carbon fiber strands. Through the above-mentioned setting, it is used to replace the electric heating roller drying process, and through the subsequent drying box re-processing process, the large-tow carbon fiber strands can be guided and transported and dried and cured simultaneously, thereby improving the drying and shaping efficiency of large-tow carbon fiber processing;

[0013] 2. In the present invention, part of the waste heat air is recovered through the circular holes arranged on the inner wall of the lower cavity tube and the inner wall of the upper cavity tube, and is returned to the top pipeline of the air pump device through the branch pipe. The hot air enters the guide structure through the connecting tube, and is discharged through the air outlet holes arranged on the inner wall of the semicircular groove of the hollow roller, and is blown with hot air to the large-bundle strands, which plays a role in drying and auxiliary shaping of the large-bundle strands. Part of the waste heat air is recovered through the disk ring, the hollow table and the straight pipe, and is returned to the top pipeline of the air pump device through the air collecting structure. Through the above arrangement, hot air blowing and waste heat recovery are formed to reduce heat energy loss;

[0014] 3. In the present invention, the guide structure and the frame plate are rotatably arranged, and the connecting tube and the air guide tube are rotatably arranged. When the large-bundle strands are guided and transported, the large-bundle strands drive the guide structure and the connecting tube to rotate. Through the above arrangement, there is rolling friction between the large-bundle strands and the semicircular grooves of the hollow rollers, which can reduce the external friction loss of the large-bundle strands. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 It is a schematic diagram of the guide adjustment device of the present invention;

[0017] Figure 3 It is a cross-sectional schematic diagram of some components of the guide adjustment device of the present invention;

[0018] Figure 4 It is a schematic diagram of the position structure of the sleeve ring, the lower cavity tube and the upper cavity tube of the present invention;

[0019] Figure 5 For the present invention Figure 4 A schematic diagram of the structure at A;

[0020] Figure 6 It is a cross-sectional schematic diagram of the bottom structure of the lower plate of the present invention;

[0021] Figure 7 For the present invention Figure 6 Schematic diagram of the structure at B;

[0022] Figure 8 It is a schematic diagram of the assembly structure of the crank of the present invention;

[0023] Fig. 9 It is a schematic diagram of the position structure of the sleeve ring and the hollow column of the present invention;

[0024] Fig.10 Schematic diagram of the horizontal cross-section structure of the blade disk of the present invention;

[0025] Fig.11 It is a structural schematic diagram of the beam drying device of the present invention;

[0026] Fig.12 This is a schematic diagram of the internal component position structure of the gas collection structure of the present invention;

[0027] Fig.13 It is a schematic diagram of the cross-sectional structure of some components of the beam-splitting drying device of the present invention;

[0028] Fig.14 For the present invention Fig.13 Schematic diagram of the structure at C;

[0029] Fig.15 For the present invention Fig.13 Schematic diagram of the structure at D;

[0030] Fig.16 It is a schematic diagram of the cross section of the cavity box and the cross section of the output tube of the present invention;

[0031] Fig.17 This is a schematic diagram of the gas collection structure of the present invention;

[0032] Fig.18 It is a schematic diagram of the cross-sectional structure of the hollow platform and the straight tube of the present invention;

[0033] Fig.19 It is a schematic diagram of the cross-sectional structure of the disk ring and the hollow platform of the present invention;

[0034] Fig. 20 For the present invention Fig.12A rear view structural diagram of ;

[0035] Fig.21 For the present invention Fig. 20 Schematic diagram of the structure at E;

[0036] Fig. 22 This is a schematic diagram of the cavity box and upper plate position structure of the present invention;

[0037] Fig.23 It is a schematic diagram of the rotational position of the small gear plate and the large gear plate of the present invention.

[0038] In the figure: 1. guide adjustment device; 101. upper plate; 102. lower plate; 103. bearing ring; 104. large gear plate; 105. first solid column; 106. shaft cylinder; 107. small gear plate; 108. stepping motor; 109. collar; 110. lower cavity cylinder; 111. upper cavity cylinder; 112. hollow column; 113. leaf disk; 114. second solid column; 115. breathable gasket; 116. crank; 117. threaded sleeve; 118. belt; 2. beam splitter Drying device; 201, connecting plate; 202, air pump device; 203, branch pipe; 204, cavity box; 205, heating wire assembly; 206, output pipe; 207, frame plate; 208, guide structure; 2081, hollow rod; 2082, hollow roller; 2083, hollow cylinder; 209, gas collecting structure; 2091, disk ring; 2092, hollow table; 2093, straight pipe; 2094, pad; 210, connecting tube; 211, air guide tube; 212, ring frame. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] In the embodiments of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limitations of the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Similarly, similar words such as "one", "an", or "the" do not indicate a quantitative limitation, but rather indicate the presence of at least one. Similar words such as "include" or "comprises" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects.

[0041] In addition, in the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] See also Figure 1-23 , the present invention provides a technical solution:

[0043] A drying device for large-tow carbon fiber, comprising a guide adjustment device 1 and a beam drying device 2, wherein the beam drying device 2 is arranged on the top of the guide adjustment device 1, and the guide adjustment device 1 comprises an upper plate 101, a lower plate 102, a bearing ring 103, a large gear plate 104, a first solid column 105, a shaft cylinder 106, a small gear plate 107, a stepping motor 108, a sleeve 109, a lower cavity cylinder 110, an upper cavity cylinder 111, a hollow column 112, a leaf disk 113, a second solid column 114, a breathable gasket 115, a crank 116, a threaded sleeve 117 and a belt 118, a lower plate 102 is fixedly arranged at the bottom end of the upper plate 101, a bearing ring 103 is fixedly arranged on the inner wall of the bottom end of the lower plate 102, a ring groove is opened at the bottom of the large gear plate 104, and the top of the bearing ring 103 is connected to the inner wall of the lower plate 102. The bottom ring groove of the large gear plate 104 is in contact with each other, and a first solid column 105 is fixedly arranged on the top of the large gear plate 104. A shaft cylinder 106 is rotatably arranged on the inner wall of the bottom end of the lower plate 102. A small gear plate 107 is fixedly arranged on the outside of the shaft cylinder 106. The top of the shaft cylinder 106 arranged at the front end is fixedly arranged at the end of the main shaft of the stepper motor 108. The inside of the outer support plate of the stepper motor 108 and the top of the lower plate 102 are both assembled with external studs. Three guide holes are arranged at intervals inside the upper plate 101. A hollow sleeve 109 and a hollow lower cavity cylinder 110 are fixed inside the guide holes of the upper plate 101. The top of the lower cavity cylinder 110 is fixedly connected to a hollow upper cavity cylinder 111, and the bottom of the sleeve 109 is fixedly connected to a hollow column 112. The outer side of the hollow column 112 is rotatably arranged with the blade disk 113, a second solid column 114 is fixedly arranged at the bottom end of the blade disk 113, a breathable gasket 115 is fixedly arranged on one side of the central axis of the guide hole opened near the upper plate 101 of the blade disk 113, two slots are opened inside the crank 116, the outer side of the first solid column 105 and the outer side of the second solid column 114 are rotatably arranged with the slots opened by the crank 116 respectively, and a belt 118 is fitted and contacted between the outer sides of the shaft cylinder 106 set at the front end and the rear end, and the beam drying device 2 includes a connecting plate 201, an air pump device 202, a branch pipe 203, a cavity box 204, an electric heating wire assembly 205, an output pipe 206, a frame plate 207, a guide structure 208, an air collecting structure 209, a connecting cylinder 210, an air guide cylinder 211 and a ring frame 2 12. An air pump device 202 is fixedly arranged on the top of the connecting plate 201. Two branch pipes 203 symmetrically arranged in front and back are fixedly connected to the air suction pipe on the top of the air pump device 202. Two output pipes 206 symmetrically arranged in left and right are fixedly connected to the exhaust pipe at the bottom of the air pump device 202. One end of the output pipe 206 away from the air pump device 202 is fixedly connected to a hollow cavity box 204. A heating wire assembly 205 is fixedly arranged inside the cavity box 204. The internal threaded hole at the bottom of the frame plate 207 and the internal threaded hole at the top of the upper plate 101 are assembled by external studs. A guide structure 208 is arranged between the inner sides of the frame plates 207 arranged on the left and right sides. The guide structure 208 includes a hollow rod 2081, a hollow roller 2082 and a hollow cylinder 2083.Three hollow rollers 2082 are fixedly connected at intervals inside the hollow rod 2081, and two hollow cylinders 2083 are symmetrically distributed and fixed on both sides of the left and right ends of the hollow rod 2081. An air collecting structure 209 is arranged on the outside of the hollow roller 2082, and the air collecting structure 209 includes a disk ring 2091, a hollow platform 2092, a straight pipe 2093 and a pad 2094. The hollow disk ring 2091 is fixedly connected with the hollow platform 2092. The end of the hollow platform 2092 away from the disk ring 2091 is fixedly connected with the straight pipe 2093, and the bottom end of the straight pipe 2093 is fixedly provided with a pad 2094. The right end of the hollow cylinder 2083 arranged on the right side is fixedly connected with a connecting cylinder 210, and the inner wall of the right end of the connecting cylinder 210 is connected to the air guide cylinder 2 11 is rotatably arranged, a ring frame 212 is fixedly arranged on the outside of the air guide cylinder 211, the end of the hose fixedly connected to the right end of the air guide cylinder 211 is fixedly connected to the top of the output pipe 206 arranged on the right side, the ring groove opened on the outside of the hollow cylinder 2083 is rotatably arranged inside the frame plate 207, the bottom end of the ring frame 212 is fixedly arranged on the top of the upper plate 101, the branch pipe 203 is fixedly connected to the upper cavity cylinder 111, the cavity box 204 is fixedly connected to the inside of the upper plate 101, and the upper plates 101 arranged on the front and rear sides are fixedly arranged with the connecting plate 201, and the tow carbon fibers dried by the electric hot pressing roller are wound by an external twisting device to form a large tow twisted wire, and the above-mentioned large tow twisted wire is placed inside the device, and the large tow twisted wire is passed from the lower plate 10 2 bottom holes, between the rotating blade disks 113, the middle of the collar 109, the middle of the lower cavity tube 110, and the middle of the upper cavity tube 111, and are placed under the guidance of the semicircular groove opened in the hollow roller 2082, and the large strands of the ... The small through groove and the large through groove opened inside the blade disk 113 enter the inside of the blade disk 113, and the hot air is discharged through the air-permeable gasket 115 set on the inner side of the blade disk 113 to perform subsequent drying and shaping of the large tow strands. The two hoses connected to the top of the right output pipe 206 are connected to the air guide cylinder 211. After the air pump device 202 and the electric heating wire assembly 205 are preheated, hot air flows inside the upper and lower pipelines of the air pump device 202. The hot air enters the hollow rod 2081, the hollow roller 2082, and the hollow cylinder 2083 through the connecting tube 210, and is discharged through the air outlet openings on the inner wall of the semicircular groove of the hollow roller 2082, and the hot air is sprayed on the large tow strands, which plays a role in drying and auxiliary shaping of the large tow strands.

[0044] Three bearing rings 103, three large gear plates 104 and a small gear plate 107 are arranged inside the lower plate 102. The three large gear plates 104 are distributed on the left, middle and right sides. Adjacent large gear plates 104 are meshed. The small gear plate 107 is meshed with the large gear plates 104 distributed on the right side. Through the above arrangement, the stepper motor 108 drives the shaft tube 106 to rotate, and the angle of the breathable gasket 115 arranged inside the leaf disk 113 can be adjusted. Through the adjacent meshing of the three large gear plates 104 distributed on the left, middle and right sides, and driven by the small gear plate 107, it can be used to synchronously adjust the angle of the end air outlet structure of the multi-channel large wire bundle twisted wire arranged inside the guide adjustment device 1.

[0045] The outer side of the upper part of the first solid column 105, the outer side of the lower part of the hollow column 112, and the outer side of the lower part of the second solid column 114 are all provided with threaded grooves, and the threaded sleeve 117 is threadedly assembled with the threaded grooves of the first solid column 105, the threaded grooves of the hollow column 112, and the threaded grooves of the second solid column 114. Through the above arrangement, the large gear plate 104, the first solid column 105, the collar 109, the hollow column 112, the blade disk 113, the second solid column 114, and the crank 116 are an integrated assembly structure, wherein the blade disk 113 uses the hollow column 112 as a rotation limiter, and when the large gear plate 104 rotates, it can drive the crank 116 and the blade disk 113 to rotate around the hollow column 112.

[0046] The inner wall of the guide hole opened inside the outer wall of the ring 109 and the inner wall of the guide hole opened inside the upper plate 101 are connected by circular holes, a small through groove is opened on the inner wall of the hollow column 112, and a large through groove is opened on the side of the blade disk 113 close to the hollow column 112. Through the above arrangement, the upper plate 101, the ring 109, the hollow column 112 and the blade disk 113 jointly form a conveying passage for hot air, and the hot air is discharged through the breathable gasket 115 fixedly arranged on the inner side of the blade disk 113.

[0047] A semicircular groove is provided on the outside of the hollow roller 2082, an air outlet is provided on the inner wall of the semicircular groove of the hollow roller 2082, and an air intake hole is provided on the inner wall of the disk ring 2091 near one end of the hollow roller 2082. Through the above arrangement, the disk ring 2091, the hollow platform 2092 and the straight pipe 2093 together constitute a waste heat recovery structure for the hot air escaping from the air outlet of the hollow roller 2082.

[0048] Working process: In the prior art, when sizing and drying carbon fiber tows, the carbon fiber tows are horizontally guided and transmitted, the upper and lower membrane layers soaked with slurry are brought into contact with the tows, and heated and dried by electric hot rollers and subsequent drying ovens to form a film on the surface of the single filaments in the tows. Taking the processing of carbon fiber tows through electric hot roller drying treatment and subsequent twisting to form large tow carbon fiber wires as an example, the present invention provides a curing and molding device for subsequent drying of the large tow carbon fibers formed by the twisting process, which is used to replace the subsequent processing in a drying oven after the electric hot roller drying treatment, and can simultaneously guide, transport, dry and solidify the large tow carbon fiber twisted wires, thereby improving the drying and shaping efficiency of the large tow carbon fiber processing.

[0049] The stepper motor 108, air pump device 202 and heating wire assembly 205 provided in this device are all controlled and processed by an external PLC controller, and the stepper motor 108, air pump device 202 and heating wire assembly 205 provided above are all electrically connected to an external power supply, wherein the heating wire assembly 205 includes a heating wire body, a voltage regulator, a thermometer and other components, and the heating temperature of the heating wire body is monitored and adjusted by the voltage regulator, thermometer and other components, which belongs to the temperature adjustment method of the existing heating wire device and will not be elaborated in this article.

[0050] The stepper motor 108 is started to drive the shaft cylinder 106 set at the front end to rotate, and the belt 118 set between the front and rear sides can drive the shaft cylinder 106 set at the rear end to rotate synchronously. Since the shaft cylinder 106 and the small gear plate 107 are fixed structures, the small gear plate 107 can be driven to rotate. The small gear plate 107 and the three large gear plates 104 arranged adjacent to the left side in meshing form a meshing transmission structure for driving the three large gear plates 104 to rotate, wherein the bearing ring 103 is a rotation limiter of the large gear plate 104, which is used to ensure the horizontal and stable rotation of the large gear plate 104. The large gear plate 104, the first solid column 105, the sleeve ring 109, the hollow column 112, the leaf disk 113, the second solid column 114, and the crank 116 are an integrated assembly structure, wherein the leaf disk 113 uses the hollow column 112 as a rotation limiter. When the large gear plate 104 rotates, the crank 116 and the leaf disk 113 can be driven to rotate around the hollow column 112, forming a structure as shown in the figure. Fig.23 The display structure of the leaf disk 113 shown can adjust the rotation angle of the display structure of the leaf disk 113 accordingly by setting the rotation angle of the shaft tube 106 driven by the stepping motor 108, and adjust the angle of the breathable gasket 115 of the end air outlet structure, which can be used to synchronously adjust the angle of the end air outlet structure of the multi-channel large-tow twisted wire set inside the guide adjustment device 1.

[0051] The air pump device 202 is started, wherein the bottom exhaust pipe of the air pump device 202 is connected to the output pipes 206 arranged on the left and right sides, the top air intake pipe of the air pump device 202 is connected to the branch pipe 203 and the air collecting structure 209, and the top of the output pipe 206 arranged on the right is connected to the inside of the air guide cylinder 211. The exhaust pipeline of this device is divided into four places, including two output pipes 206 arranged on the left and right sides connected to the bottom pipe of the air pump device 202, and two hoses connected to the air guide cylinder 211 at the top of the right output pipe 206. The air intake pipe of this device is divided into four places, including two branch pipes 203 and two groups of air collecting structures 209 symmetrically distributed front and back that are fixedly connected to the top air intake pipe of the air pump device 202.

[0052] Before using the device, the air pump device 202 and the heating wire assembly 205 are preheated for 5-7 minutes. The air inside the output pipes 206 arranged on the left and right sides is heated by the heating wire assembly 205 and then enters the upper plate 101 through the arranged cavity box 204. Since the inner wall of the outer wall of the ring 109 and the inner wall of the guide hole opened in the upper plate 101 are connected through circular holes, the hot air enters the ring 109 through the upper plate 101. The hot air inside the ring 109 enters the blade disk 113 through the small through groove opened in the hollow column 112 and the large through groove opened in the blade disk 113. The hot air is discharged through the breathable gasket 115 arranged on the inner side of the blade disk 113 to carry out subsequent drying and shaping of the large filament bundle strands.

[0053] Circular holes are respectively provided on the inner walls of the lower cavity tube 110 and the upper cavity tube 111. The upper cavity tube 111 is fixedly connected to the branch pipe 203. The hot air discharged from the breathable gasket 115 floats up, and part of the residual hot air is recovered through the circular holes provided on the inner walls of the lower cavity tube 110 and the upper cavity tube 111, and flows back to the top pipe of the air pump device 202 through the branch pipe 203.

[0054] The two hoses connected to the top of the right output pipe 206 are connected to the air guide cylinder 211. After preheating treatment by the air pump device 202 and the electric heating wire assembly 205, hot air flows inside the upper pipeline and the lower pipeline of the air pump device 202. The hot air enters the hollow rod 2081, the hollow roller 2082, and the hollow cylinder 2083 through the connecting tube 210, and is discharged through the air outlet holes opened on the inner wall of the semicircular groove of the hollow roller 2082, and hot air is blown to the large-bundle strands, which plays a role in drying and auxiliary shaping of the large-bundle strands.

[0055] The inner ring center of the disk ring 2091 is located on the central axis of the guide structure 208. The inner wall of the disk ring 2091 is provided with an air intake hole. The hot air discharged from the air outlet hole opened by the hollow roller 2082 escapes, and part of the residual hot air is recovered through the disk ring 2091, the hollow platform 2092 and the straight pipe 2093, and flows back to the top pipeline of the air pump device 202 through the air collecting structure 209.

[0056] The above-mentioned structure can spray hot gas and recover waste heat to reduce heat energy loss.

[0057] The guide structure 208 and the frame plate 207 are rotatably arranged, and the connecting tube 210 and the air guide tube 211 are rotatably arranged. When the large-bundle strands are guided and transported, the large-bundle strands drive the guide structure 208 and the connecting tube 210 to rotate. At this time, there is rolling friction between the large-bundle strands and the semicircular grooves of the hollow roller 2082, which can reduce the external friction loss of the large-bundle strands.

[0058] For example: Figure 4 , Figure 5 The air-permeable gasket 115 shown in the figure is in the initial state. The stepper motor 108 is started to drive the shaft cylinder 106 disposed at the front end to rotate, forming the following Fig.23 The deflection state of the breathable gasket 115 shown is set by the PLC controller to rotate the stepper motor 108 forward and reversely, so as to realize the reciprocating rotation of the breathable gasket 115 in the above-mentioned initial state and deflection state, and perform circular rotating hot air drying and shaping of the large-bundle strands, thereby improving the drying and shaping efficiency of the outside of the large-bundle strands.

[0059] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drying device for large-tow carbon fibers, comprising a guide adjustment device (1) and a bundle drying device (2), characterized in that: The top of the guide adjustment device (1) is provided with a beam splitting drying device (2). The guide adjustment device (1) comprises an upper plate (101), a lower plate (102), a bearing ring (103), a large gear plate (104), a first solid column (105), a shaft cylinder (106), a small gear plate (107), a stepping motor (108), a sleeve ring (109), a lower cavity cylinder (110), an upper cavity cylinder (111), a hollow column (112), a leaf disk (113), a second solid column (114), a breathable gasket (115), a crank (116), a threaded sleeve (117) and a belt (118). The lower plate (102) is fixedly provided at the bottom end of the upper plate (101), and the inner wall of the bottom end of the lower plate (102) is fixedly provided with a A bearing ring (103) is provided at the bottom of the large gear plate (104), and the top of the bearing ring (103) is in contact with the ring groove at the bottom of the large gear plate (104). A first solid column (105) is fixedly provided at the top of the large gear plate (104). A shaft cylinder (106) is rotatably provided on the inner wall of the bottom end of the lower plate (102). A small gear plate (107) is fixedly provided on the outside of the shaft cylinder (106). The top of the shaft cylinder (106) provided at the front end is fixedly provided at the end of the main shaft of the stepping motor (108). The inside of the outer support plate of the stepping motor (108) and the inside of the top of the lower plate (102) are both threadedly assembled with external studs. Three guide holes are provided at intervals inside the upper plate (101). A hollow sleeve (109) and a hollow lower chamber cylinder (110) are fixed inside the guide hole opened in the upper plate (101); the top of the lower chamber cylinder (110) is fixedly connected to a hollow upper chamber cylinder (111); the bottom of the sleeve (109) is fixedly connected to a hollow column (112); the outer side of the hollow column (112) is rotatably arranged with a blade disk (113); a second solid column (114) is fixedly arranged at the bottom of the blade disk (113); a breathable gasket (115) is fixedly arranged on one side of the blade disk (113) close to the central axis of the guide hole opened in the upper plate (101); two slots are opened inside the crank (116); the outer sides of the first solid column (105) and the outer sides of the second solid column (114) are respectively The connecting plate (201) is rotatably arranged with a slotted hole opened with a crank (116), and a belt (118) is in contact with the outer sides of the shaft tube (106) arranged at the front end and the rear end. The beam separation drying device (2) comprises a connecting plate (201), an air pump device (202), a branching pipe (203), a cavity box (204), an electric heating wire assembly (205), an output pipe (206), a frame plate (207), a guide structure (208), an air collecting structure (209), a connecting tube (210), an air guide tube (211) and a ring frame (212). The air pump device (202) is fixedly arranged at the top of the connecting plate (201), and the two branching pipes (203) symmetrically distributed in the front and rear are fixedly connected to the air suction pipe at the top of the air pump device (202).The two output pipes (206) symmetrically arranged on the left and right are fixedly connected to the exhaust pipe at the bottom of the air pump device (202); one end of the output pipe (206) away from the air pump device (202) is fixedly connected to a hollow cavity box (204); a heating wire assembly (205) is fixedly arranged inside the cavity box (204); an internal threaded hole at the bottom of the frame plate (207) and an internal threaded hole at the top of the upper plate (101) are assembled by external studs; a guide structure (208) is arranged between the inner sides of the frame plates (207) arranged on the left and right sides; the guide structure (208) comprises a hollow rod (2081), a hollow roller (2082) and a hollow cylinder (2083); the hollow rod (2081) ) has three hollow rollers (2082) arranged at intervals and fixedly connected inside, two hollow cylinders (2083) are symmetrically arranged and fixedly connected on both sides of the left and right ends of the hollow rod (2081), an air collecting structure (209) is arranged on the outside of the hollow rollers (2082), the air collecting structure (209) comprises a disc ring (2091), a hollow platform (2092), a straight pipe (2093) and a pad (2094), the hollow disc ring (2091) is fixedly connected to the hollow platform (2092), one end of the hollow platform (2092) away from the disc ring (2091) is fixedly connected to the straight pipe (2093), the bottom end of the straight pipe (2093) is fixedly provided with a pad (2094), and the right side of the disc ring (2091) is fixedly connected to the straight pipe (2093), the bottom end of the straight pipe (2093) is fixedly provided with a pad (2094), and the right side of the disc ring (2091) is fixedly connected to the straight pipe (2093). The right end of the hollow cylinder (2083) is fixedly connected to a connecting cylinder (210), the inner wall of the right end of the connecting cylinder (210) is rotatably arranged with the air guide cylinder (211), a ring frame (212) is fixedly arranged on the outside of the air guide cylinder (211), the end of the hose fixedly connected to the right end of the air guide cylinder (211) is fixedly connected to the top of the output pipe (206) arranged on the right side, the ring groove provided on the outside of the hollow cylinder (2083) is rotatably arranged inside the frame plate (207), the bottom end of the ring frame (212) is fixedly arranged with the top of the upper plate (101), the branch pipe (203) is fixedly connected to the upper cavity cylinder (111), the cavity box (204) is fixedly connected to the inside of the upper plate (101), and the upper plate arranged on the front and rear sides is fixedly connected to the upper cavity cylinder (111). (101) and the connecting plate (201) are fixedly arranged between them, and the tow carbon fibers dried by the electric heating roller are wound by an external twisting device to form a large tow twisted wire. The large tow twisted wire is placed inside the device, and the large tow twisted wire passes through the bottom hole of the lower plate (102), between the rotating blade plates (113), the middle of the ring (109), the middle of the lower cavity tube (110), and the middle of the upper cavity tube (111), and is guided by the semicircular groove opened in the hollow roller (2082). The large tow twisted wire at the bottom is tensioned and placed between the external electric roller group, and the large tow twisted wire is transported by the electric roller group. After the air inside the output pipe (206) arranged on the left and right sides is heated by the electric heating wire assembly (205),The cavity box (204) is set to enter the interior of the upper plate (101). Since the inner wall of the outer wall of the ring (109) and the inner wall of the guide hole opened in the upper plate (101) are connected through the circular hole, the hot air enters the interior of the ring (109) through the interior of the upper plate (101). The hot air in the ring (109) enters the interior of the blade disk (113) through the small through groove opened in the hollow column (112) and the large through groove opened in the blade disk (113). The hot air is discharged through the air-permeable gasket (115) provided on the inner side of the blade disk (113) to carry out subsequent drying and shaping of the large tow strands. The hot air on the right side The two hoses connected to the top of the output pipe (206) are connected to the air guide cylinder (211). After the air pump device (202) and the electric heating wire assembly (205) are preheated, hot air flows inside the upper pipeline and the lower pipeline of the air pump device (202). The hot air enters the hollow rod (2081), the hollow roller (2082), and the hollow cylinder (2083) through the connecting cylinder (210), and is discharged through the air outlet holes provided on the inner wall of the semicircular groove of the hollow roller (2082), and the hot air is sprayed on the large-bundle strands, thereby playing a role in drying and auxiliary shaping of the large-bundle strands.

2. The drying device for large-tow carbon fiber according to claim 1, characterized in that: Three bearing rings (103), three large gear plates (104) and one small gear plate (107) are arranged inside the lower plate (102); the three large gear plates (104) are arranged on the left, middle and right sides, the adjacent large gear plates (104) are meshed with each other, and the small gear plate (107) is meshed with the large gear plates (104) arranged on the right side.

3. The drying device for large-tow carbon fiber according to claim 1, characterized in that: The upper outer side of the first solid column (105), the lower outer side of the hollow column (112), and the lower outer side of the second solid column (114) are all provided with thread grooves, and the thread sleeve (117) is threadably assembled with the thread grooves provided on the first solid column (105), the thread grooves provided on the hollow column (112), and the thread grooves provided on the second solid column (114).

4. The drying device for large-tow carbon fiber according to claim 1, characterized in that: The inner wall of the guide hole opened inside the outer wall of the collar (109) and inside the upper plate (101) are both connected via a circular hole, a small through groove is opened on the inner wall of the hollow column (112), and a large through groove is opened on the side of the blade plate (113) close to the hollow column (112).

5. The drying device for large-tow carbon fiber according to claim 1, characterized in that: A semicircular groove is provided on the outer side of the hollow roller (2082), an air outlet hole is provided on the inner wall of the semicircular groove provided on the hollow roller (2082), and an air suction hole is provided on the inner wall of one end of the disk ring (2091) close to the hollow roller (2082).

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