A large tow carbon fiber drawing steam treatment device

Abstract

This application relates to the technical field of fiber production and processing, and in particular to a large tow carbon fiber drawing steam treatment device, including a drawing roller, a head and tail transmission part, a fiber wire, a steam delivery rack, a steam addition pipe, a steam heating module, a monitoring module and a main body. The main body includes a base, the upper side of the base is fixedly connected with a box shell, a first driving part is installed in the upper opening of the box shell, a second driving part is installed in the lower opening of the box shell, and a control panel is installed on the left side of the box shell. In this application, through structures such as the steam delivery rack, the drawing roller, the steam addition pipe and the steam heating module, the drawing steam treatment device can simultaneously draw and fully heat the carbon fiber with high-temperature water steam in the floor space of a single device.

Description

Technical Field

[0001] This application relates to the technical field of fiber production and processing, and specifically relates to a drawing steam treatment device for large tow carbon fiber. Background Art

[0002] Large tow carbon fiber is a high-performance fiber material formed after a series of process treatments on carbon fiber precursor filaments. It has broad application prospects and market demands. During the processing of carbon fiber precursor filaments, drawing needs to go through three stages. The purpose of steam drawing is to align the polyacrylonitrile macromolecular chains in the precursor filaments along the axial direction, improve the orientation degree of the polymer, and improve the mechanical properties of the fiber. The realization of steam drawing uses saturated water vapor as the drawing medium. High-pressure and high-temperature water molecules penetrate into the fiber and undergo hydrogen bonding to achieve a plasticizing effect.

[0003] Steam drawing of carbon fiber requires the use of a drawing device. Existing drawing devices usually consist of a driving mechanism, a drawing mechanism, and a heating mechanism. Among them, the heating mechanism may use electric heating, steam heating, or hot air heating, all of which heat the rollers of the drawing mechanism. The rollers are in direct contact with the fiber, and the fiber is heated through the high-temperature surface of the rollers to ensure that the fiber can be heated and stretched. Since this heating process is achieved by heat conduction, the moisture in the steam cannot come into contact with the carbon fiber, and thus the hydrogen bonding cannot occur to produce a plasticizing effect, affecting the drawing effect of the carbon fiber. Therefore, such drawing devices cannot be directly applied to the steam drawing of carbon fiber. In response to this situation, manufacturers generally use a steam heating box to directly heat the carbon fiber. Since there are two devices, this leads to a large floor space occupied by the carbon fiber steam drawing process, which is not conducive to the utilization of the factory building space. Therefore, a drawing steam treatment device for large tow carbon fiber is proposed according to the above problems. Summary of the Invention

[0004] The purpose of this application is to provide a drawing steam treatment device for large tow carbon fiber to solve the problem that the existing drawing steam device is difficult to be directly applied to the steam drawing of carbon fiber. Therefore, it is necessary to cooperate with a steam heating box to directly heat the carbon fiber, and since there are two devices, this leads to a large floor space occupied by the carbon fiber steam drawing process.

[0005] To achieve the above purpose, this application provides the following technical solutions:

[0006] A large tow carbon fiber drafting steam treatment device, comprising drafting rollers, head and tail transmission parts, fiber silk threads, a steam delivery rack, a steam addition pipe, a steam heating module, a monitoring module and a main body. The main body includes a base, and a box shell is fixedly connected to the upper side of the base. A first driving part is installed at the upper side opening position of the box shell, and a second driving part is installed at the lower side opening position of the box shell. A control panel is installed on the left side of the box shell. The front output shafts of the first driving part and the second driving part are both fixedly connected with drafting rollers at the front ends. The drafting roller includes a roller body, a cavity is opened inside the roller body, and annular channels are opened on both the front and rear sides of the roller body. Through holes are communicated between the cavity and the annular channels, and annular grooves are opened on the outer sides of the annular channels. Steam delivery racks are installed on both the front and rear sides of a group of drafting rollers. The steam delivery rack includes a rail ring rotatably connected to the annular groove, and annular shells are fixedly connected to the inner sides of the rail rings and are located inside the annular channels. A series of pipes are communicated between a group of annular shells. An exhaust hole is opened in the upper left annular shell of the front steam delivery rack, and the left part of the lower left annular shell of the rear steam delivery rack is communicated with a steam addition pipe. Head and tail transmission parts are installed on both the left and right sides of the front end face of the box shell. A steam heating module is installed on the upper part of the upper left annular shell. The fiber silk threads pass through a group of head and tail transmission parts and the steam heating module and bypass a group of drafting rollers.

[0007] Preferably, the steam heating module includes a gas delivery pipe member fixedly connected to the exhaust hole. A transfer shell is fixedly connected to the outer part of the upper pipe of the gas delivery pipe member. Push rods are slidably connected to the left side hole positions of the transfer shell. An exhaust shell is fixedly connected to the lower side of the transfer shell. Support plates are fixedly connected to both the front and rear sides of the lower part of the exhaust shell, and the lower ends of the support plates are fixedly connected to the annular shell. Soft belts are fixedly connected to both the left and right sides of the lower part of the exhaust shell and are located above the fiber silk threads. A folding pipe is fixedly connected to the hole position of the front support plate. The upper end of the folding pipe is communicated with a receiving shell located below the exhaust shell. An air heat distribution part sleeving the outer side of the fiber silk thread is installed at the lower end of the folding pipe. The air heat distribution part includes a steam delivery shell communicated with the lower end of the folding pipe. Rail shells are fixedly connected to both the front and rear sides of the right end face of the steam delivery shell. A cover plate is attached to the right side of the rail shell. Rail bars slidably connected to the rail shell are fixedly connected to both the front and rear sides of the left end face of the cover plate.

[0008] Preferably, the first driving part is composed of a motor and a three-axis power divider box, and the second driving part is composed of a motor and a two-axis power divider box. The first driving part, the second driving part and the control panel are electrically connected. The head and tail transmission part includes a fixed seat fixedly connected to the front end face of the box shell. A group of two transmission rollers are rotatably connected to the front side of the fixed seat. A wire dividing frame is fixedly connected to the front end face of the fixed seat and is located above the transmission rollers. The wire dividing frame is composed of a base bar and a group of partition bars. The fiber silk threads are all arranged between a group of transmission rollers and are all arranged between a group of partition bars of the wire dividing frame.

[0009] Preferably, the steam delivery racks are all communicated with the drafting rollers. The gas pipeline component is composed of a lower pipe, a middle pipe, an upper pipe, a group of branch pipes, and elastic choke pieces fixed inside the branch pipes. The upper pipe of the gas pipeline component is communicated with the group of branch pipes. A cross slit is formed inside the elastic choke piece of the gas pipeline component.

[0010] Preferably, five groups of through holes are equidistantly arranged on the inner curved surface of the exhaust shell. The upper curved surface of the receiving shell is attached to the lower curved surface of the exhaust shell. The receiving shell is communicated with the middle three groups of through holes of the exhaust shell. The steam delivery shell is composed of a shell body, a wire groove, and through holes formed at the wire groove. The fiber silk threads are all arranged in the wire groove of the steam delivery shell. The fiber silk threads are all arranged between the steam delivery shell and the cover plate. A gap is left between the fiber silk threads and the steam delivery shell and the cover plate.

[0011] Preferably, a warning device is installed on the upper side of the box shell, and a monitoring module is installed on the left side of the steam heating module. The monitoring module includes a substrate fixedly connected to the left side of the exhaust shell. A gas storage part is fixedly connected to the right end surface of the vertical plate of the substrate. The gas storage part includes a storage shell. An elastic band is fixedly connected inside the right opening of the storage shell. An elastic piece is fixedly connected inside the front circular opening of the storage shell. A folding block is fixedly connected to the front side of the vertical plate of the substrate. A contact button is installed on the rear end surface of the folding block and is located on the front side of the elastic piece. Transmission parts are installed in the rotation grooves of the horizontal plate of the substrate. The transmission parts include arm rods rotatably connected to the rotation grooves of the horizontal plate of the substrate. A pressing block is fixedly connected to the upper left side of the arm rod. A wheel shell is fixedly connected to the lower end of the arm rod. A guide wheel in contact with the fiber silk thread is rotatably connected inside the wheel shell.

[0012] Preferably, the pressing blocks are all in contact with the elastic band. The arm rods and the push rods are arranged horizontally and aligned left and right. The push rods and the branch pipes of the gas pipeline component are arranged horizontally and aligned left and right. The thickness dimension of the elastic band is greater than the thickness dimension of the elastic piece. A gap is provided between the elastic piece and the contact button.

[0013] Preferably, the contact button and the warning device are electrically connected. The fiber silk threads are all arranged on the lower side of the guide wheel. The fiber silk threads are all in contact with the wheel grooves of the guide wheel.

[0014] Compared with the prior art, the beneficial effects of the present application are:

[0015] 1. In this application, through structures such as the steam delivery rack, drafting rollers, steam addition pipes, and steam heating modules, the first drive part and the second drive part of the main body can control the upper and lower drafting rollers to rotate at different speeds and in different directions, enabling the fiber filaments in contact with them to receive a large drafting force during the walking process. At this time, high-temperature water vapor is conveyed to the rear steam delivery rack through the steam addition pipe, enabling the steam delivery rack to convey high-temperature water vapor to the rotating drafting rollers. The high-temperature water vapor passing through the drafting rollers can heat up the outer surface of the roller body, enabling the roller body to heat the fiber filaments in contact, so that the fiber filaments can be heated and stretched in cooperation with the drafting force. On the other hand, the water vapor passing through the drafting rollers will converge into the front steam delivery rack and then be conveyed to the transfer housing through the gas pipeline components and discharged from the exhaust housing at the lower side of the transfer housing. The exhaust housing will directly discharge some of the high-temperature water vapor between a set of flexible belts and a set of support plates to preheat the fiber filaments walking under the flexible belt with high-temperature water vapor. Another part of the high-temperature water vapor will be discharged into the receiving housing and conveyed to the steam delivery housing of the air heating section through the folding pipe. This part of the high-temperature water vapor can be discharged through the through holes of the steam delivery housing, enabling the high-temperature water vapor to post-heat the fiber filaments passing through the wire grooves of the steam delivery housing. After the fiber filaments are preheated and post-heated with high-temperature water vapor, the supersaturated water vapor can be used as a drafting medium, enabling high-pressure and high-temperature water molecules to penetrate into the fiber filaments to undergo hydrogen bond action, thereby achieving a plasticizing effect and ensuring the quality of the fiber filaments after steam drafting. It realizes that the drafting steam treatment device can use the floor space of a single device to simultaneously draft and comprehensively and fully heat the carbon fiber with high-temperature water vapor, solving the problem that the existing drafting steam device is difficult to be directly applicable to the steam drafting of carbon fiber. Therefore, it is necessary to cooperate with a steam heating box to directly heat the carbon fiber, and since it is two devices, this leads to a large floor space required for the carbon fiber steam drafting process;

[0016] 2. In this application, through structures such as the gas transmission pipe fittings, monitoring module, warning device, and fiber silk threads, the transmission parts of the monitoring module are all arranged on the upper side of the moving fiber silk threads. If the fiber silk threads do not break, the transmission parts will maintain an unchanged angle under the limitation of the fiber silk threads. If the fiber silk threads break during the stretching process, the transmission parts without limitation will rotate counterclockwise under the influence of gravity and become vertical. At the same time, the high-temperature water vapor flow discharged from the corresponding branch pipe of the gas transmission pipe fitting will push the corresponding push rod to displace to the left, and the leftward displacement of the push rod can further push the arm rod of the transmission part to rotate counterclockwise, so that the pressing block of the transmission part squeezes the elastic belt of the air chamber part, and the squeezing of the elastic belt will squeeze the air in the air chamber part. Since the thickness of the elastic sheet is thinner than that of the elastic belt, the air will first cause the elastic sheet to deform and bulge after being squeezed, so that the bulged elastic sheet activates the contact button, and the warning device is activated through the contact button to give an alarm, reminding the staff that a certain fiber silk thread has broken. It realizes that when the stretching steam treatment device conducts steam stretching on carbon fibers, it can automatically monitor and warn whether each carbon fiber breaks, and solves the problem that the existing stretching steam device stretches multiple carbon fibers simultaneously for processing efficiency. Due to the close arrangement of each carbon fiber, it is difficult for the staff to supervise the stretching conditions of each carbon fiber for a long time. If a carbon fiber breaks during stretching, it is difficult for the staff to get a warning and deal with it in a timely manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of this application;

[0018] Figure 2 For this application Figure 1 is a schematic diagram of the structure from another perspective;

[0019] Figure 3 For this application Figure 1 is a rear view structure diagram;

[0020] Figure 4 is a schematic diagram of the structure of the main body of this application;

[0021] Figure 5 For this application Figure 4 is a rear view structure diagram;

[0022] Figure 6 is a schematic diagram of the structure of the head and tail transmission part of this application;

[0023] Figure 7 is a schematic diagram of the structure of the stretching roller of this application;

[0024] Figure 8 For this application Figure 7 is a schematic cross-sectional structure diagram;

[0025] Figure 9 Structural schematic diagram of the steam transmission rack of this application;

[0026] Figure 10 Structural schematic diagram of the steam heating module of this application;

[0027] Figure 11 For this application Figure 10 Bottom view structural schematic diagram;

[0028] Figure 12 For this application Figure 10 Sectional view structural schematic diagram;

[0029] Figure 13 Structural schematic diagram at the exhaust housing of this application;

[0030] Figure 14 For this application Figure 13 Bottom view structural schematic diagram;

[0031] Figure 15 Structural schematic diagram of the gas pipeline component of this application;

[0032] Figure 16 Structural schematic diagram at the receiving housing of this application;

[0033] Figure 17 Structural schematic diagram of the gas heat distribution of this application;

[0034] Figure 18 For this application Figure 17 Separation structural schematic diagram;

[0035] Figure 19 For this application Figure 18 Another perspective structural schematic diagram;

[0036] Figure 20 Structural schematic diagram at the monitoring module of this application;

[0037] Figure 21 For this application Figure 20 Structural schematic diagram at position A of this application;

[0038] Figure 22 For this application Figure 20 Another perspective structural schematic diagram;

[0039] Figure 23 For this application Figure 22 Structural schematic diagram at position B of this application;

[0040] Figure 24 Structural schematic diagram at the front end of the gas storage part of this application;

[0041] Figure 25 Structural schematic diagram of the transmission part of this application.

[0042] In the figure: 1. Main body; 11. Base; 12. Box shell; 13. First driving part; 14. Second driving part; 15. Alarm; 16. Control panel; 2. Drafting roller; 21. Roller body; 22. Chamber; 23. Ring channel; 24. Through port; 25. Ring groove; 3. Head and tail transmission part; 31. Fixed seat; 32. Transmission roller; 33. Wire dividing frame; 4. Fiber silk thread; 5. Steam conveying frame; 51. Ring shell; 52. Rail ring; 53. Series pipe; 54. Exhaust hole; 6. Steam adding pipe; 7. Steam heating module; 71. Gas pipeline component; 72. Transfer shell; 73. Push rod; 74. Exhaust shell; 75. Support plate; 76. Soft belt; 77. Folded pipe; 78. Receiving shell; 79. Gas heat distribution part; 791. Steam transmission shell; 792. Rail shell; 793. Rail; 794. Cover plate; 8. Monitoring module; 81. Substrate; 82. Gas storage part; 821. Storage shell; 822. Elastic belt; 823. Elastic piece; 83. Folding block; 84. Contact button; 85. Transmission part; 851. Arm rod; 852. Pressing block; 853. Wheel shell; 854. Guide wheel. Detailed implementation mode

[0043] Please refer to Figures 1 - 25 , this application provides a technical solution:

[0044] A large tow carbon fiber drafting steam treatment device, comprising a drafting roller 2, a head and tail transmission part 3, a fiber thread 4, a steam delivery rack 5, a steam addition pipe 6, a steam heating module 7, a monitoring module 8 and a main body 1. The main body 1 includes a base 11, and a box shell 12 is fixedly connected to the upper side of the base 11. A first driving part 13 is installed in the upper opening position of the box shell 12, and a second driving part 14 is installed in the lower opening position of the box shell 12. A control panel 16 is installed on the left side of the box shell 12. The front output shafts of the first driving part 13 and the second driving part 14 are both fixedly connected to a drafting roller 2. The drafting roller 2 includes a roller body 21, a cavity 22 is opened inside the roller body 21, annular channels 23 are opened on both the front and rear sides of the roller body 21, and through holes 24 are communicated between the cavity 22 and the annular channels 23. Annular grooves 25 are opened on the outer sides of the annular channels 23. Steam delivery racks 5 are installed on both the front and rear sides of a set of drafting rollers 2. The steam delivery rack 5 includes an orbital ring 52 rotatably connected to the annular groove 25. Inner sides of the orbital rings 52 are fixedly connected to annular shells 51 located inside the annular channels 23. Series pipes 53 are communicated between a set of annular shells 51. An exhaust hole 54 is opened in the upper left annular shell 51 of the front steam delivery rack 5. The left part of the lower left annular shell 51 of the rear steam delivery rack 5 is communicated with a steam addition pipe 6. Both the left and right sides of the front end face of the box shell 12 are installed with head and tail transmission parts 3. A steam heating module 7 is installed on the upper part of the upper left annular shell 51. The fiber thread 4 passes through a set of head and tail transmission parts 3 and the steam heating module 7 and bypasses a set of drafting rollers 2. The steam heating module 7 includes an air delivery pipe member 71 fixedly connected to the exhaust hole 54. The outer part of the upper pipe of the air delivery pipe member 71 is fixedly connected to a transfer shell 72. Push rods 73 are slidably connected to the left side hole positions of the transfer shell 72. An exhaust shell 74 is fixedly connected to the lower side of the transfer shell 72. Support plates 75 are fixedly connected to both the front and rear sides of the lower part of the exhaust shell 74. Lower ends of the support plates 75 are fixedly connected to the annular shell 51. Soft belts 76 located above the fiber thread 4 are fixedly connected to both the left and right sides of the lower part of the exhaust shell 74. A folding pipe 77 is fixedly connected to the hole position of the front support plate 75. The upper end of the folding pipe 77 is communicated with a receiving shell 78 located below the exhaust shell 74. The lower end of the folding pipe 77 is installed with a gas heat distribution part 79 sleeved on the outer side of the fiber thread 4. The gas heat distribution part 79 includes a steam delivery shell 791 communicated with the lower end of the folding pipe 77. Rail shells 792 are fixedly connected to both the front and rear sides of the right end face of the steam delivery shell 791. A cover plate 794 is attached to the right side of the rail shells 792. Rail bars 793 slidably connected to the rail shells 792 are fixedly connected to both the front and rear sides of the left end face of the cover plate 794. Through the provided steam heating module 7, the fiber thread 4 passing by can be comprehensively and fully pre-steamed and post-steamed;The first driving part 13 is composed of a motor and a three-axis power take-off box, and the second driving part 14 is composed of a motor and a two-axis power take-off box. The first driving part 13 and the second driving part 14 are electrically connected to the control panel 16. Through this setting, both the first driving part 13 and the second driving part 14 can adjust the rotation speed and direction through the control panel 16. The head and tail transmission part 3 includes a fixed seat 31 fixedly connected to the front end face of the casing 12. A set of two transmission rollers 32 are rotatably connected to the front side of the fixed seat 31. A wire dividing frame 33 is fixedly connected to the front end face of the fixed seat 31 and is located above the transmission rollers 32. The wire dividing frame 33 is composed of a base strip and a set of partition strips. The fiber silk threads 4 are all arranged between a set of transmission rollers 32, and the fiber silk threads 4 are all arranged between a set of partition strips of the wire dividing frame 33. Through this setting, a set of transmission rollers 32 of the head and tail transmission parts 3 arranged on the left and right positions can be used as the inlet end and the outlet end to conduct the walking displacement of the fiber silk threads 4. At the same time, the wire dividing frame 33 can be used to divide the fiber silk threads 4. The steam delivery frame 5 is all connected to the drafting rollers 2. Through this setting, high-temperature water vapor can enter the drafting rollers 2 through the steam delivery frame 5. The gas pipeline part 71 is composed of a lower pipe, a middle pipe, an upper pipe, a set of branch pipes and elastic flow blocking pieces fixed in the branch pipes. The upper pipe of the gas pipeline part 71 is connected to the set of branch pipes. A cross slit is opened on the inner side of the elastic flow blocking piece of the gas pipeline part 71. Through this setting, the elastic flow blocking piece can limit the exhaust of the branch pipes of the gas pipeline part 71. Only when the gas in the upper pipe of the gas pipeline part 71 is full and the air pressure rises, can the elastic flow blocking pieces in each branch pipe be simultaneously opened and discharged, so that the branch pipes of the gas pipeline part 71 can all discharge an equal high-temperature steam flow. Five groups of through holes are equidistantly arranged on the inner curved surface of the exhaust shell 74. The upper curved surface of the receiving shell 78 is attached to the lower curved surface of the exhaust shell 74. The receiving shell 78 is connected to the middle three groups of through holes of the exhaust shell 74. The steam delivery shell 791 is composed of a shell, a wire groove and through holes opened at the wire groove. The fiber silk threads 4 are all arranged in the wire groove of the steam delivery shell 791, and the fiber silk threads 4 are all arranged between the steam delivery shell 791 and the cover plate 794. Through this setting, the high-temperature water vapor discharged through the through holes of the steam delivery shell 791 can heat the fiber silk threads 4 passing through the wire groove of the steam delivery shell 791 with high-temperature water vapor. There is a gap between the fiber silk threads 4 and the steam delivery shell 791 and the cover plate 794. Through this setting, the walking displacement of the fiber silk threads 4 does not contact the steam delivery shell 791 and the cover plate 794.;

[0045] Such as Figure 1 , Figure 10 , Figure 12 , Figure 15 , Figures 20 - 25As shown, a warning device 15 is installed on the upper side of the box shell 12, and a monitoring module 8 is installed on the left side of the steam heating module 7. The monitoring module 8 includes a substrate 81 fixedly connected to the left side of the exhaust shell 74. The right end face of the vertical plate of the substrate 81 is fixedly connected with an air chamber part 82. The air chamber part 82 includes a chamber shell 821. An elastic band 822 is fixedly connected inside the right opening of the chamber shell 821. An elastic sheet 823 is fixedly connected inside the front circular opening of the chamber shell 821. A folding block 83 is fixedly connected to the front side of the vertical plate of the substrate 81. A contact button 84 is installed on the rear end face of the folding block 83 and is located on the front side of the elastic sheet 823. Transmission parts 85 are installed in the horizontal rotation grooves of the horizontal plate of the substrate 81. The transmission parts 85 include arm rods 851 rotatably connected to the horizontal rotation grooves of the horizontal plate of the substrate 81. A pressing block 852 is fixedly connected to the upper left side of the arm rod 851. The lower end of the arm rod 851 is fixedly connected with a wheel shell 853. A guide wheel 854 that fits with the fiber thread 4 is rotatably connected inside the wheel shell 853. Through this setting, when the fiber thread 4 undergoes steam drawing, the monitoring module 8 can automatically monitor and give a warning about whether each fiber thread 4 breaks; the pressing blocks 852 are all in contact with the elastic band 822. Through this setting, the displaced pressing blocks 852 can squeeze the elastic band 822. The arm rods 851 and the push rods 73 are arranged horizontally and aligned left and right. Through this setting, when the push rods 73 are displaced, they can push the arm rods 851 to rotate. The push rods 73 and the branch pipes of the gas pipeline component 71 are arranged horizontally and aligned left and right. Through this setting, the high-temperature water vapor flow discharged from the branch pipes of the gas pipeline component 71 can push the push rods 73 to be displaced. The thickness dimension of the elastic band 822 is greater than the thickness dimension of the elastic sheet 823. A gap is provided between the elastic sheet 823 and the contact button 84. Through this setting, it can be seen that since the thickness of the elastic sheet 823 is thinner than the thickness of the elastic band 822, when air is squeezed, the elastic sheet 823 will first deform and bulge outward; the contact button 84 and the warning device 15 are electrically connected. The fiber threads 4 are all arranged below the guide wheels 854, and the fiber threads 4 are all in contact with the wheel grooves of the guide wheels 854. Through this setting, the transmission parts 85 are in rotational contact with the fiber threads 4 through the guide wheels 854.

[0046] Workflow: Large tow carbon fiber is made from carbon fiber precursor filaments, and the steam drawing operation of the carbon fiber precursor filaments, i.e., fiber filaments 4, by the drawing steam treatment device is as follows. Note 1: All electrical appliances in this solution are externally powered. The first drive unit 13 and the second drive unit 14 are both adjusted for rotational speed and direction through the control panel 16. The steam supply pipe 6 is connected to an external high-temperature steam supply pipeline. Note 2: A set of transmission rollers 32 of the head and tail transmission unit 3 arranged on the left and right can be used as the inlet and outlet to conduct the walking displacement of the fiber filaments 4. At the same time, the fiber filaments 4 can be branched through the provided wire dividing frame 33. Note 3: Since each annular shell 51 is connected through a plurality of series pipes 53, the steam delivery frame 5 is an interconnected structure. Since the annular shell 51, the rail ring 52 are rotatably connected to the annular groove 25 and the annular track 23 of the drawing roller 2, the annular shell 51 of the steam delivery frame 5 can supply gas to the rotating drawing roller 2. Note 4: The elastic flow restrictor provided can limit the exhaust of the branch pipes of the gas delivery pipe 71. Only when the gas in the upper pipe of the gas delivery pipe 71 is filled and the air pressure rises can the elastic flow restrictors in each branch pipe be simultaneously opened to discharge, so that the branch pipes of the gas delivery pipe 71 can all discharge an equal flow of high-temperature water vapor. Note 5: The cover plate 794 can be removed from the steam delivery shell 791 through the rail 793 and the rail shell 792. By providing the cover plate 794, the high-temperature water vapor can be restricted at the wire groove of the steam delivery shell 791, so that the concentration of the high-temperature water vapor at the wire groove of the steam delivery shell 791 remains at a relatively high level;Through the adjustment of the control panel 16, the first driving part 13 and the second driving part 14 of the main body 1 can control the upper and lower drafting rollers 2 to rotate at different speeds and in different directions, so that the fiber silk thread 4 in contact with them can obtain a greater drafting force during the walking process. At this time, water vapor is conveyed to the rear steam conveying rack 5 through the steam adding pipe 6, so that the steam conveying rack 5 can convey high-temperature water vapor to the rotating drafting roller 2. The high-temperature water vapor passing through the drafting roller 2 can heat up the outer surface of the roller body 21, so that the roller body 21 heats the fiber silk thread 4 in contact with it, so that the fiber silk thread 4 can be heated and stretched in cooperation with the drafting force. On the other hand, the water vapor passing through the drafting roller 2 will converge into the front steam conveying rack 5 and then be conveyed to the transfer shell 72 through the gas conveying pipe 71 and discharged from the exhaust shell 74 at the lower side of the transfer shell 72. The exhaust shell 74 will directly discharge part of the high-temperature water vapor between a group of soft belts 76 and a group of support plates 75 to preheat the fiber silk thread 4 walking on the lower side of the soft belt 76 with high-temperature water vapor. Another part of the high-temperature water vapor will be discharged into the receiving shell 78 through the middle through hole of the exhaust shell 74 and conveyed to the steam conveying shell 791 of the air heat distribution part 79 through the folding pipe 77. This part of the high-temperature water vapor can be discharged through the through hole of the steam conveying shell 791, so that the high-temperature water vapor can post-heat the fiber silk thread 4 passing through the wire groove of the steam conveying shell 791 with high-temperature water vapor. After the fiber silk thread 4 is preheated and post-heated with high-temperature water vapor, the supersaturated water vapor can be used as a drafting medium, so that the high-pressure and high-temperature water molecules can penetrate into the fiber silk thread 4 to generate hydrogen bond action, so as to achieve a plasticizing effect, ensure the quality of the fiber silk thread 4 after steam drafting, and enable the drafting steam treatment device to simultaneously draft and fully heat the carbon fiber with high-temperature water vapor in the floor space of a single device;The monitoring operation of carbon fiber is as follows. The transmission parts 85 of the monitoring module 8 are all arranged on the upper side of the fiber silk thread 4 in motion (the transmission part 85 is in rotational contact with the fiber silk thread 4 through the guide wheel 854. The thrust of the push rod 73 and the high-temperature water vapor flow on the transmission part 85 is relatively small and will not have an adverse impact on the fiber silk thread 4 that will be stretched with a large tensile force subsequently). If the fiber silk thread 4 does not break, the transmission part 85 will maintain its angle unchanged under the limit of the fiber silk thread 4. If the fiber silk thread 4 breaks during the stretching process, the transmission part 85 without the limit will rotate counterclockwise under the influence of gravity and become vertical. At the same time, the high-temperature water vapor flow discharged from the corresponding branch pipe of the air supply pipe 71 will push the corresponding push rod 73 to move leftward, and the leftward movement of the push rod 73 can further push the arm rod 851 of the transmission part 85 to rotate counterclockwise, so that the pressing block 852 of the transmission part 85 squeezes the elastic belt 822 of the air chamber part 82, and the squeezing of the elastic belt 822 will squeeze the air in the air chamber part 82. Since the thickness of the elastic sheet 823 is thinner than that of the elastic belt 822, the air will first cause the elastic sheet 823 to deform and protrude after being squeezed, so that the protruded elastic sheet 823 activates the contact button 84, and the warning device 15 is activated through the contact button 84 to give an alarm, reminding the staff that a certain fiber silk thread 4 has broken, so that the stretching steam treatment device can automatically monitor and warn whether each carbon fiber has broken during the steam stretching of carbon fiber.;

[0047] In this article, specific examples are used to elaborate on the principle and implementation mode of the present application. The description of the above examples is only used to help understand the method and its core idea of the present application. The above is only the preferred implementation mode of the present application. It should be noted that due to the limitation of literal expression and objectively existing infinite specific structures, for those of ordinary skill in the art in this technical field, without departing from the principle of the present application, several improvements, refinements or changes can be made, or the above technical features can be combined in an appropriate manner; these improvements, refinements, changes or combinations, or directly applying the concept and technical solution of the application to other occasions without improvement, should all be regarded as the protection scope of the present application.

Claims

1. A drafting steam treatment device for large tow carbon fiber, comprising a drafting roller (2), a head and tail transmission part (3), a fiber silk thread (4), a steam conveying rack (5), a steam adding pipe (6), a steam heating module (7), a monitoring module (8) and a main body (1), characterized in that: The main body (1) includes a base (11), a box shell (12) is fixedly connected to the upper side of the base (11), a first driving part (13) is installed in the upper side opening of the box shell (12), a second driving part (14) is installed in the lower side opening of the box shell (12), a control panel (16) is installed on the left side of the box shell (12), the front ends of the front output shafts of the first driving part (13) and the second driving part (14) are fixedly connected with drafting rollers (2), the drafting roller (2) includes a roller body (21), a cavity (22) is opened inside the roller body (21), annular channels (23) are opened on both the front and rear sides of the roller body (21), through openings (24) are communicated between the cavity (22) and the annular channels (23), annular grooves (25) are opened on the outer sides of the annular channels (23), steam conveying frames (5) are installed on both the front and rear sides of a group of drafting rollers (2), the steam conveying frame (5) includes a rail ring (52) rotatably connected to the annular groove (25), annular shells (51) located inside the annular channels (23) are fixedly connected to the inner sides of the rail rings (52), a series pipe (53) is communicated between a group of annular shells (51), an exhaust hole (54) is opened in the upper left annular shell (51) of the front steam conveying frame (5), a steam adding pipe (6) is communicated with the left part of the lower left annular shell (51) of the rear steam conveying frame (5), first and last transmission parts (3) are installed on both the left and right sides of the front end face of the box shell (12), a steam heating module (7) is installed on the upper part of the upper left annular shell (51), the fiber silk thread (4) passes through a group of first and last transmission parts (3) and the steam heating module (7) and bypasses a group of drafting rollers (2), the steam heating module (7) includes an air delivery pipe member (71) fixedly connected to the exhaust hole (54), a transfer shell (72) is fixedly connected to the outer part of the upper pipe of the air delivery pipe member (71), push rods (73) are slidably connected to the left side holes of the transfer shell (72), an exhaust shell (74) is fixedly connected to the lower side of the transfer shell (72), support plates (75) are fixedly connected to both the front and rear sides of the lower part of the exhaust shell (74), the lower ends of the support plates (75) are fixedly connected to the annular shell (51), flexible belts (76) located above the fiber silk thread (4) are fixedly connected to both the left and right sides of the lower part of the exhaust shell (74), a folding pipe (77) is fixedly connected to the hole of the front support plate (75), the upper end of the folding pipe (77) is communicated with a receiving shell (78) located under the exhaust shell (74), a pneumatic heat distribution part (79) sleeved on the outer side of the fiber silk thread (4) is installed at the lower end of the folding pipe (77), the pneumatic heat distribution part (79) includes a steam delivery shell (791) communicated with the lower end of the folding pipe (77), rail shells (792) are fixedly connected to both the front and rear sides of the right end face of the steam delivery shell (791), a cover plate (794) is attached to the right side of the rail shell (792),Both the front and rear sides of the left end face of the cover plate (794) are fixedly connected with rail bars (793) slidably connected to the rail shell (792). The first driving part (13) consists of a motor and a three-axis transfer case. The second driving part (14) consists of a motor and a two-axis transfer case. The first driving part (13), the second driving part (14) and the control panel (16) are electrically connected. The head and tail transmission part (3) includes a fixed seat (31) fixedly connected to the front end face of the box shell (12). A set of two transmission rollers (32) are rotatably connected to the front side of the fixed seat (31). A wire dividing frame (33) is fixedly connected to the front end face of the fixed seat (31) and is located above the transmission rollers (32). The wire dividing frame (33) consists of a base bar and a set of partition bars. The fiber silk threads (4) are all arranged between a set of transmission rollers (32). The fiber silk threads (4) are all arranged between a set of partition bars of the wire dividing frame (33). A warning device (15) is installed on the upper side of the box shell (12). A monitoring module (8) is installed on the left side of the steam heating module (7). The monitoring module (8) includes a substrate (81) fixedly connected to the left side of the exhaust shell (74). An air storage part (82) is fixedly connected to the right end face of the vertical plate of the substrate (81). The air storage part (82) includes a storage shell (821). An elastic band (822) is fixedly connected to the right opening of the storage shell (821). An elastic sheet (823) is fixedly connected to the front round opening of the storage shell (821). A folding block (83) is fixedly connected to the front side of the vertical plate of the substrate (81). A contact button (84) is installed on the rear end face of the folding block (83) and is located in front of the elastic sheet (823). Transmission parts (85) are installed in the rotating grooves of the horizontal plate of the substrate (81). The transmission part (85) includes an arm rod (851) rotatably connected to the rotating groove of the horizontal plate of the substrate (81). A pressing block (852) is fixedly connected to the upper left side of the arm rod (851). The lower end of the arm rod (851) is fixedly connected to a wheel shell (853). A guide wheel (854) that fits with the fiber silk thread (4) is rotatably connected to the inner side of the wheel shell (853).

2. The large tow carbon fiber drafting steam treatment device according to claim 1, characterized in that: The steam delivery racks (5) are all connected to the drafting rollers (2). The gas pipeline component (71) is composed of a lower pipe, a middle pipe, an upper pipe, a group of branch pipes, and elastic choke pieces fixed inside the branch pipes. The upper pipe of the gas pipeline component (71) is connected to the group of branch pipes. A cross slit is formed on the inner side of the elastic choke piece of the gas pipeline component (71).

3. The large tow carbon fiber drawing steam treatment device according to claim 1, characterized in that: Five groups of through holes are equidistantly arranged on the inner curved surface of the exhaust shell (74). The upper curved surface of the receiving shell (78) is attached to the lower curved surface of the exhaust shell (74). The receiving shell (78) is connected to the middle three groups of through holes of the exhaust shell (74). The steam delivery shell (791) is composed of a shell, a wire groove, and through holes formed at the wire groove. The fiber filaments (4) are all arranged in the wire groove of the steam delivery shell (791). The fiber filaments (4) are all arranged between the steam delivery shell (791) and the cover plate (794). A gap is left between the fiber filaments (4) and the steam delivery shell (791) and the cover plate (794).

4. A large tow carbon fiber drawing steam treatment device according to claim 1, characterized in that: The pressing blocks (852) are all attached to the elastic belt (822). The arm rods (851) and the push rods (73) are arranged horizontally and aligned left and right. The push rods (73) and the branch pipes of the gas pipeline component (71) are arranged horizontally and aligned left and right. The thickness dimension of the elastic belt (822) is greater than the thickness dimension of the elastic piece (823). A gap is provided between the elastic piece (823) and the contact button (84).

5. A large tow carbon fiber drawing steam treatment device according to claim 4, characterized in that: The contact button (84) is electrically connected to the warning device (15). The fiber filaments (4) are all arranged on the lower side of the guide wheels (854). The fiber filaments (4) are all attached to the wheel grooves of the guide wheels (854).

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