Large-tow carbon fiber heating yarn spreading device

Abstract

The utility model discloses a large-tow carbon fiber heating and yarn spreading device, which relates to the field of carbon fiber production equipment, and adopts the technical scheme that the large-tow carbon fiber heating and yarn spreading device comprises an equipment shell, a movable door is arranged on one side of the equipment shell, through channels are arranged at two end parts of the equipment shell, and a group of yarn spreading rollers are respectively arranged on two sides of each channel; heating assemblies are symmetrically arranged in the equipment shell, and each heating assembly is connected with the equipment shell through two parallel installation frames. The device has the advantages that the large-tow carbon fibers are placed in the closed device shell, only an inlet and an outlet for yarn are reserved, electric heating is conducted, the large-tow carbon fibers are located in the closed space, the heat loss is small during heating, the time needed for reaching the set temperature is shortened, and high-temperature yarn spreading is achieved; the heating assemblies are oppositely arranged on the two sides of the large-tow carbon fibers, carbon fiber yarns can be evenly heated, the conveyed carbon fibers can be heated in multiple directions, and the heating and yarn spreading effect of the carbon fibers is improved.

Description

Technical Field

[0001] The utility model relates to the field of carbon fiber production equipment, in particular to a large-tow carbon fiber heating and yarn spreading device. Background Art

[0002] Carbon fiber refers to high-strength and high-modulus fiber with a carbon content of more than 90%. It has the characteristics of light weight, high strength, corrosion resistance, fatigue resistance, high temperature resistance, etc. It is fibrous, soft, and can be processed into various fabrics. At present, with the increasing industrial application, low-cost large-tow carbon fiber has become the first choice. Large-tow carbon fiber has a heavy gram weight and a single-tow fiber cross-section. When it is made into a fabric, it will cause fabric gaps and poor impregnation.

[0003] When processing large-tow carbon fiber, it needs to be spread out and stretched through rollers. Because the large-tow carbon fiber has not been heated, the surface slurry is prone to cracking during the stretching process, resulting in poor sand spreading effect, which affects the quality of subsequent processing of the large-tow carbon fiber. Utility Model Content

[0004] In view of the above technical problems, the utility model provides a large-tow carbon fiber heating and yarn spreading device.

[0005] The technical solution is as follows: it comprises an equipment shell, a movable door is provided on one side of the equipment shell, through passages are provided on both sides of the equipment shell, and a group of yarn spreading rollers are provided at the passages on both sides of the equipment shell;

[0006] The heating components are symmetrically arranged in the device shell, and each of the heating components is connected to the device shell through two parallel mounting frames.

[0007] Preferably, the heating assembly comprises a plurality of fins arranged in parallel, an air duct is formed between two adjacent fins, the fins are provided with tube holes for the heating tube to pass through, and the heating tube is passed through the tube holes and arranged on the fins;

[0008] The two ends of the fin are fixedly connected by a connecting rod, the middle part of the connecting rod is fixedly connected by two fixing frames, and each of the fixing frames is fixedly connected to the device housing through a mounting frame.

[0009] Preferably, the heating component further comprises a plurality of fans, the fans are fixedly connected to the fins, and the air outlet ends of the fans face the fins.

[0010] Preferably, the heating tube and the fins are both made of metal, and a resistance wire is arranged inside the heating tube.

[0011] Preferably, the mounting bracket comprises a mounting seat fixedly connected to the device housing, a transfer seat is rotatably arranged at one end of the mounting seat, the transfer seat is fixedly connected to the fixed bracket, a slide groove is provided at one end of the transfer seat away from the mounting seat, a connecting rod is slidably arranged in the slide groove, one end of the connecting rod slides in the slide groove, and the other end is rotatably connected to one end of the mounting seat away from the rotating axis of the transfer seat;

[0012] It also includes a limiter rotatably arranged on the connecting rod, wherein the limiter is located at an end of the connecting rod close to the sliding groove.

[0013] Preferably, one end of the limiter is rotatably arranged on the connecting rod, and a torsion spring is arranged between the limiter and the connecting rod;

[0014] A positioning piece is provided at one end of the stopper close to the rotation axis of the stopper;

[0015] A plurality of slots are provided on the rod body of the adapter, and the positioning piece is plugged into one of the slots.

[0016] Preferably, each group of the yarn spreading rollers includes two yarn spreading rollers rotatably arranged on the device housing, each of the yarn spreading rollers is fixedly connected to the device housing via a support frame, one of the yarn spreading rollers is located in the middle of the channel, and the other is located on the outside of the device housing.

[0017] Preferably, in each group of the yarn spreading rollers, one yarn spreading roller located outside the device housing has a higher level than another yarn spreading roller.

[0018] The beneficial effects brought about by the technical solution provided by the embodiment of the utility model are as follows: by placing large-tow carbon fibers in a closed equipment casing, leaving only the inlet and outlet for the yarn, and heating with electricity, the large-tow carbon fibers are in a closed space, and the heat loss during heating is small, which reduces the time required to reach the set temperature and achieves high-temperature yarn spreading; the heating components are arranged on both sides of the large-tow carbon fibers, which can evenly heat the carbon fiber yarn, and can heat the transmitted carbon fibers in multiple directions, thereby improving the heating and yarn spreading effect of the carbon fibers. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model.

[0020] Figure 2 This is a schematic diagram of the internal structure of the device housing according to an embodiment of the utility model.

[0021] Figure 3 This is a schematic diagram of the heating component structure of an embodiment of the utility model.

[0022] Figure 4This is a schematic diagram of the mounting frame structure of an embodiment of the utility model.

[0023] Figure 5 for Figure 4 An enlarged schematic diagram of part A.

[0024] Figure 6 It is a schematic structural diagram of a limiter according to an embodiment of the utility model.

[0025] Figure 7 The figure is a schematic diagram of the yarn spreading roller structure of an embodiment of the utility model.

[0026] Among them, the figure markings are: 1. Equipment housing; 2. Movable door; 3. Yarn spreading roller; 4. Heating assembly; 5. Mounting frame; 6. Fin; 7. Heating tube; 8. Connecting rod; 9. Fixed frame; 10. Fan; 11. Mounting seat; 12. Adapter seat; 13. Slide groove; 14. Connecting rod; 15. Limiter; 16. Torsion spring; 17. Positioning plate; 18. Slot; 19. Yarn spreading roller; 20. Carbon fiber. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. Of course, the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0028] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0029] In the description of the invention of the present utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the invention of the utility model 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 a limitation on the invention of the utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the invention of the present utility model, unless otherwise specified, "multiple" means two or more.

[0030] In the description of the invention of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 it can be indirectly connected 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 invention of the utility model can be understood according to specific circumstances.

[0031] Example 1

[0032] See also Figures 1 to 6 The utility model provides a large-tow carbon fiber heating and yarn spreading device, comprising a device housing 1, a movable door 2 is provided on one side of the device housing 1, and through passages are respectively provided on both sides of the device housing 1, and a group of yarn spreading rollers 3 are respectively provided at the passages on both sides of the device housing 1;

[0033] The heating components 4 are symmetrically arranged in the device housing 1 , and each heating component 4 is connected to the device housing 1 via two parallel mounting frames 5 .

[0034] The heating assembly 4 includes a plurality of fins 6 arranged in parallel, and an air duct is formed between two adjacent fins 6. The fins 6 are provided with tube holes for the heating tube 7 to pass through. The heating tube 7 is arranged on the fins 6 through the tube holes, and the heating tube 7 is a bow-shaped curved tube.

[0035] The two ends of the fin 6 are fixedly connected by a connecting rod 8 , and the middle part of the connecting rod 8 is fixedly connected by two fixing frames 9 , and each fixing frame 9 is fixedly connected to the device housing 1 through a mounting frame 5 .

[0036] The heating assembly 4 further includes a plurality of fans 10 , which are fixedly connected to the fins 6 , and the air outlet ends of the fans 10 face the fins 6 .

[0037] The fan 10 can blow the heat emitted by the heating tube 7 and the fin 6 to the carbon fiber 20, so that the heat is transferred to the carbon fiber 20, thereby heating the carbon fiber 20. During the stretching process of the carbon fiber 20, the slurry on the surface of the carbon fiber 20 will not crack. The slurry will soften due to heating and re-attach to the carbon fiber 20, thereby improving the effect of the spreading roller 19 on the carbon fiber spreading and improving the quality of subsequent processing of the carbon fiber 20.

[0038] The heating tube 7 and the fins 6 are both made of metal (preferably copper, aluminum, steel, iron and other metal materials with excellent thermal conductivity), and a resistance wire is arranged in the heating tube 7. The resistance wire heats up under the action of the current and transfers the heat to the heating tube 7, and the heating tube 7 transfers the heat to the outside evenly through the fins 6.

[0039] Each group of yarn spreading rollers 3 includes two yarn spreading rollers 19 rotatably arranged on the device housing 1. Each yarn spreading roller 19 is fixedly connected to the device housing 1 through a support frame. One of the yarn spreading rollers 3 is located in the middle of the channel, and the other is located on the outside of the device housing 1.

[0040] In each group of yarn spreading rollers 3 , a yarn spreading roller 3 located outside the device housing 1 has a higher level than another yarn spreading roller 3 .

[0041] The yarn spreading roller 19 can limit the travel path of the carbon fiber 20. The carbon fiber 20 is stretched during the movement, and the large-tow carbon fiber is spread during the stretching process.

[0042] When the utility model is used, the carbon fiber 20 is placed in a closed equipment housing 1, leaving only an inlet and outlet for the yarn, and electrically heated. The carbon fiber 20 is in a closed space, and the heat loss during heating is small, which reduces the time required to reach the set temperature, realizes high-temperature yarn spreading, and places the carbon fiber 20 in a high-temperature environment, and the spreading effect of the carbon fiber 20 is good.

[0043] Example 2

[0044] On the basis of Example 1, the mounting frame 5 includes a mounting seat 11 fixedly connected to the device housing 1, an adapter seat 12 is rotatably provided at one end of the mounting seat 11, the adapter seat 12 is fixedly connected to the fixing frame 9, a slide groove 13 is provided at one end of the adapter seat 12 away from the mounting seat 11, a connecting rod 14 is slidably provided in the slide groove 13, the connecting rod 14 includes two parallel long bars, the two ends of the long bars are fixedly connected by fixing rods, one of the fixing rods is rotatably connected to the mounting seat 11, and the other fixing rod slides in the slide groove 13, one end of the connecting rod 14 slides in the slide groove 13, and the other end is rotatably connected to one end of the mounting seat 11 away from the rotating axis of the adapter seat 12;

[0045] The invention also includes a limiter 15 rotatably disposed on the connecting rod 14 . The limiter 15 is located at one end of the connecting rod 14 close to the sliding groove 13 .

[0046] One end of the limiter 15 is rotatably disposed on the connecting rod 14, and a torsion spring 16 is disposed between the limiter 15 and the connecting rod 14;

[0047] A positioning piece 17 is provided at one end of the stopper 15 close to the rotation axis of the stopper 15;

[0048] A plurality of slots 18 are formed on the rod body of the adapter 12 , and the positioning piece 17 is plugged into one of the slots 18 .

[0049] The operator presses the movable end of the stopper 15 to separate the positioning piece 17 from the slot 18. At this time, the operator can rotate the heating component 4 to slide the connecting rod 14 in the slide groove 13. When the heating component 4 is tilted at a certain angle, the operator releases the movable end of the stopper 15 to insert the positioning piece 17 into the slot 18, thereby fixing the heating component 4 and facilitating the operator to debug the carbon fiber 20.

[0050] When the debugging is completed, the stopper 15 is pressed to reset the heating assembly 4 so as to facilitate the blowing heating of the carbon fiber 20 .

[0051] When the carbon fiber 20 needs to be debugged, since the distance between the two heating components 4 is very close, it is inconvenient for the operator to debug the carbon fiber 20. According to the actual situation on site, the upper heating component 4 or the lower heating component 4 can be tilted to increase the distance between the two heating components 4, making it easier for the operator to debug the carbon fiber 20 in the equipment housing 1.

[0052] Example 3

[0053] On the basis of Example 1 or 2, two baffles are slidably set at the channels on both sides of the device housing 1, and the two baffles are respectively located on the upper and lower sides of the channel. A guide groove is opened on both sides of each baffle, and a locking bolt is set in the guide groove. The locking bolt is threadedly connected to the device housing, and the locking bolt tightens the baffle.

[0054] When the equipment needs to be debugged, the operator loosens the locking bolts and moves the two baffles to the upper and lower sides of the channel respectively to make the channel leak out for the operator's use. When the carbon fiber 20 needs to be heated, the operator moves the two baffles to one side of the carbon fiber, leaving only the inlet and outlet for the yarn, and uses electricity for heating. The large-tow carbon fiber is in a confined space, and the heat loss is small during heating, which reduces the time required to reach the set temperature and achieves high-temperature yarn spreading.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A large-tow carbon fiber heating and yarn spreading device, comprising a device housing (1), characterized in that: A movable door (2) is provided on one side of the device housing (1), and through passages are provided on both sides of the device housing (1), and a group of yarn spreading rollers (3) are provided at the passages on both sides of the device housing (1); Heating components (4) are symmetrically arranged in the device housing (1), and each of the heating components (4) is connected to the device housing (1) via two parallel-arranged mounting frames (5).

2. The large-tow carbon fiber heating and yarn spreading device according to claim 1, characterized in that: The heating assembly (4) comprises a plurality of fins (6) arranged in parallel, an air duct is formed between two adjacent fins (6), the fins (6) are provided with tube holes for allowing a heating tube (7) to pass through, and the heating tube (7) is inserted into the fins (6) through the tube holes; The two ends of the fin (6) are fixedly connected via a connecting rod (8), the middle of the connecting rod (8) is fixedly connected via two fixing frames (9), and each of the fixing frames (9) is fixedly connected to the device housing (1) via a mounting frame (5).

3. The large-tow carbon fiber heating and yarn spreading device according to claim 2, characterized in that: The heating assembly (4) further comprises a plurality of fans (10), wherein the fans (10) are fixedly connected to the fins (6), and the air outlet ends of the fans (10) face the fins (6).

4. The large-tow carbon fiber heating and yarn spreading device according to claim 3, characterized in that: The heating tube (7) and the fins (6) are both made of metal, and a resistance wire is arranged inside the heating tube (7).

5. The large-tow carbon fiber heating and yarn spreading device according to claim 2, characterized in that: The mounting frame (5) comprises a mounting seat (11) fixedly connected to the device housing (1), a transfer seat (12) being rotatably arranged at one end of the mounting seat (11), the transfer seat (12) being fixedly connected to the fixed frame (9), a sliding groove (13) being provided at one end of the transfer seat (12) away from the mounting seat (11), a connecting rod (14) being slidably arranged in the sliding groove (13), one end of the connecting rod (14) sliding in the sliding groove (13), and the other end being rotatably connected to one end of the mounting seat (11) away from the rotating axis of the transfer seat (12); It also includes a stopper (15) rotatably arranged on the connecting rod (14), wherein the stopper (15) is located at an end of the connecting rod (14) close to the sliding groove (13).

6. The large-tow carbon fiber heating and yarn spreading device according to claim 5, characterized in that: One end of the stopper (15) is rotatably disposed on the connecting rod (14), and a torsion spring (16) is disposed between the stopper (15) and the connecting rod (14); A positioning piece (17) is provided at one end of the stopper (15) close to the rotation axis of the stopper (15); A plurality of slots (18) are provided on the rod body of the adapter seat (12), and the positioning piece (17) is plugged into one of the slots (18).

7. The large-tow carbon fiber heating and yarn spreading device according to claim 1, characterized in that: Each group of the yarn spreading rollers (3) comprises two yarn spreading rollers (19) rotatably arranged on the device housing (1), and each of the yarn spreading rollers (19) is fixedly connected to the device housing (1) via a support frame, wherein one of the yarn spreading rollers (3) is located in the middle of the channel, and the other is located on the outside of the device housing (1).

8. The large-tow carbon fiber heating and yarn spreading device according to claim 7, characterized in that: In each group of the yarn spreading rollers (3), the horizontal height of one of the yarn spreading rollers (3) located outside the device housing (1) is higher than the horizontal height of another of the yarn spreading rollers (3).

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