Carbon fiber yarn spreading device

Abstract

The utility model belongs to the technical field of carbon fiber product weaving equipment, and particularly relates to a carbon fiber yarn spreading device which comprises a yarn spreading and blowing assembly, a rack and an electric push rod, the yarn spreading and blowing assembly comprises an air pipe and a plurality of air nozzles arranged below the air pipe at intervals, and the length direction of the air pipe is consistent with the Y-axis direction; the two ends of the air pipe are connected to the support in a sliding mode respectively, the electric push rod is fixed to the support, the length direction of a telescopic rod of the electric push rod is consistent with the X-axis direction, and the free end of the telescopic rod of the electric push rod is fixed to the air pipe. In the carbon fiber conveying process, the air nozzle reciprocates back and forth in the width direction of the carbon fibers, and the efficiency and quality of unfolding the carbon fibers in the width direction are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of carbon fiber product weaving equipment, and particularly relates to a carbon fiber yarn spreading device. Background Art

[0002] A composite material processed from materials such as carbon fiber yarn, epoxy resin, release paper, etc. through processes such as coating, hot pressing, cooling, film laminating, and winding is called carbon fiber prepreg, also known as carbon fiber prepreg cloth (carbon cloth). Carbon fiber prepreg has the advantages of high strength, low density, good plasticity, and long service life, and can be widely used in fields such as fishing tackle, sports goods, aerospace, etc.

[0003] During the production process of the carbon fiber prepreg production line, the uniformity of carbon fiber yarn spreading is an important link affecting the quality of carbon fiber prepreg. The yarn spreading process is a process of turning carbon fiber filaments into a thin and evenly dispersed yarn sheet in width through a series of processes. The wider the filament bundle is spread in width, the thinner it will become in thickness. The quality of the yarn spreading effect in the yarn spreading process directly affects the quality of subsequent carbon fiber prepreg production.

[0004] Currently, blowing air on carbon fiber yarn is one of the ways of yarn spreading. However, since the air pipe is fixed on the frame, the position of the air blowing nozzle connected to the air pipe is also fixed and unchanged. The air blowing nozzle always blows directly downward on the carbon fiber, so the effect of spreading the carbon fiber in the width direction is not very good. Content of the Utility Model

[0005] Therefore, the technical problem to be solved by the utility model is to overcome the fact that the position of the air blowing nozzle in the current yarn spreading device is fixed and unchanged, and always blows directly downward on the carbon fiber yarn, resulting in not very good spreading effect of the carbon fiber in the width direction.

[0006] To solve the above technical problem, the utility model provides a carbon fiber yarn spreading device, which includes a yarn spreading air blowing assembly, a frame, and an electric push rod. The yarn spreading air blowing assembly includes an air pipe and a number of air nozzles arranged at intervals below the air pipe. The length direction of the air pipe is consistent with the Y-axis direction. Both ends of the air pipe are slidably connected to the bracket. The electric push rod is fixed on the bracket. The length direction of the telescopic rod of the electric push rod is consistent with the X-axis direction. The free end of the telescopic rod of the electric push rod is fixed to the air pipe.

[0007] Preferably, it further includes a length counter and a controller. The length counter and the controller are both fixed on the frame. The telecommunication output end of the length counter is connected to the telecommunication input end of the controller. The telecommunication output end of the controller is connected to the electrical signal input end of the motor that controls the rotation of the carbon fiber unwinding roller.

[0008] Preferably, two slide rails with their length directions consistent with the X-axis direction are provided on the bracket. A chute is provided in each slide rail. Below each end of the air pipe, a slider is fixed, and each slider can slide correspondingly in one of the chutes.

[0009] Preferably, an interference fit is used to fix a bifurcated connection sleeve at the free end of the telescopic rod of the electric push rod. A horizontal fixing plate is fixed below the middle of the air pipe. A connection hole is provided on the fixing plate. The bifurcated connection sleeve includes an upper connection ear and a lower connection ear with a gap therebetween. The upper connection ear is provided with a fixing hole Ⅰ, and the lower connection ear is provided with a fixing hole Ⅱ. The fixing plate can be inserted into the upper connection ear and the lower connection ear. A bolt is sequentially inserted through the fixing hole Ⅰ, the connection hole, and the fixing hole Ⅱ, and then a nut is threadedly connected to the tail of the bolt to fix the fixing plate and the bifurcated connection sleeve together.

[0010] The technical solution of the present utility model has the following beneficial effects:

[0011] The present utility model includes an electric push rod. The electric push rod is fixed on the frame, and the free end of its telescopic rod is fixed to the air pipe. When the carbon fiber is being transported, the telescopic rod of the electric push rod can reciprocate back and forth along the width direction of the carbon fiber, so that the air nozzle moves back and forth in the width direction of the carbon fiber, improving the efficiency and quality of the carbon fiber being unfolded in the width direction. Description of the Drawings

[0012] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0013] Description of the reference numerals: 1, yarn spreading and blowing assembly; 11, air pipe; 12, air nozzle; 2, frame; 3, electric push rod; 4, length counter; 5, controller; 6, slide rail; 61, chute; 7, slider; 8, bifurcated connection sleeve; 81, upper connection ear; 811, fixing hole Ⅰ; 82, lower connection ear; 821, fixing hole Ⅱ; 9, fixing plate; 91, connection hole; 10, bolt; 20, nut; 30, carbon fiber.

[0014] Figure 1 It is the front view of the present utility model;

[0015] Figure 2 It is the top view of the present utility model;

[0016] Figure 3 It is the connection schematic diagram of the air pipe and the electric push rod of the present utility model;

[0017] Figure 4 This is a schematic diagram of the connection of the trachea, fixed plate and bifurcated connecting sleeve of the present utility model. Specific embodiments

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0019] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0020] In the description of the present 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0021] In addition, the technical features involved in different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0022] The present utility model provides a carbon fiber yarn spreading device, which includes a yarn spreading air blowing assembly 1, a frame 2 and an electric push rod 3. The yarn spreading air blowing assembly 1 includes a trachea 11 and a plurality of air nozzles 12 arranged at intervals below the trachea 11. The length direction of the trachea 11 is consistent with the Y-axis direction. Both ends of the trachea 11 are slidably connected to the frame 2. The electric push rod 3 is fixed on the frame 2. The length direction of the telescopic rod of the electric push rod 3 is consistent with the X-axis direction. The free end of the telescopic rod of the electric push rod 3 is fixed to the trachea 11.

[0023] The basic working principle of the present utility model: When the carbon fiber 30 is conveyed along the Y-axis direction, the air nozzle 12 ejects gas to blow air against the carbon fiber 30, and the air pipe 11 can reciprocate back and forth along the X-axis direction. In this way, it can drive the air nozzle 12 to reciprocate back and forth in the width direction of the carbon fiber 30, ensuring that the gas blows along the width direction of the carbon fiber 30 and ensuring the effect of yarn spreading.

[0024] To further ensure the effect of yarn spreading, during yarn spreading, the transmission of the carbon fiber 30 is not continuous but intermittent, facilitating each section of the carbon fiber 30 to be blown by the air nozzle 12 for a period of time, and each section of the carbon fiber 30 transmitted under the air pipe 11 needs to stay for a period of time. For example, the length of the air pipe 11 is 3 meters, and the carbon fiber 30 stays for 2 minutes every time it is transmitted 3 meters. During the 2 minutes when the carbon fiber 30 stays, the air pipe 11 reciprocates back and forth, causing this section of the carbon fiber 30 to be flattened in the width direction. Then the carbon fiber 30 continues to be transmitted forward 3 meters and stays for 2 minutes, and so on...

[0025] To achieve the above functions, the present utility model further includes a length meter 4 and a controller 5. The length meter 4 and the controller 5 are both fixed on the frame 2. The electrical output end of the length meter 4 is communicated with the electrical input end of the controller 5, and the electrical output end of the controller 5 is communicated with the electrical signal input end of the motor that controls the rotation of the unwinding roller of the carbon fiber 30. The length meter 4 is used to measure the transmission length of the carbon fiber 30 in real time. The length meter 4 transmits the detected signal to the controller 5, and the controller 5 judges the transmission length. When the controller 5 judges that the transmission length of the carbon fiber reaches a multiple of 3, the controller 5 sends a stop signal to the motor that controls the unwinding roller, and the motor stops running, and the transmission of the carbon fiber 30 pauses.

[0026] The specific structure of the sliding connection between the air pipe 11 and the frame 2 is as follows: There are two slide rails 6 on the frame 2 whose length directions are consistent with the X-axis direction. The slide rails 6 are provided with sliding grooves 61. Below each end of the air pipe 11, a slider 7 is fixed, and each slider 7 can slide correspondingly in a sliding groove 61. The slider 7 and the sliding groove 61 provide a guiding function for the reciprocating movement of the air pipe 11 along the X-axis, preventing the air pipe 11 from tilting during movement and affecting the effect of blowing and spreading the yarn.

[0027] The specific structure of the connection between the telescopic rod of the electric push rod 3 and the air pipe 11 is as follows: An interference-fixed bifurcated connecting sleeve 8 is provided at the free end of the telescopic rod of the electric push rod 3. A horizontal fixing plate 9 is fixed below the middle of the air pipe 11. A connection hole 91 is provided on the fixing plate 9. The bifurcated connecting sleeve 8 includes an upper connecting ear 81 and a lower connecting ear 82 with a gap therebetween. The upper connecting ear 81 is provided with a fixing hole Ⅰ811, and the lower connecting ear 82 is provided with a fixing hole Ⅱ821. The fixing plate 9 can be inserted into the upper connecting ear 81 and the lower connecting ear 82. A bolt 10 is sequentially inserted through the fixing hole Ⅰ811, the connection hole 91, and the fixing hole Ⅱ821, and then a nut 20 is threadedly connected to the tail of the bolt 10 to fix the fixing plate 9 and the bifurcated connecting sleeve 8 together.

[0028] Obviously, the above embodiments are merely examples for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. A carbon fiber yarn spreading device, comprising a yarn spreading air blowing assembly (1) and a frame (2), wherein the yarn spreading air blowing assembly (1) comprises an air pipe (11) and a plurality of air nozzles (12) arranged at intervals below the air pipe (11), characterized in that: It also comprises an electric push rod (3), the length direction of the air pipe (11) is consistent with the Y-axis direction, the two ends of the air pipe (11) are respectively slidably connected to the frame (2), the electric push rod (3) is fixed to the frame (2), the length direction of the telescopic rod of the electric push rod (3) is consistent with the X-axis direction, and the free end of the telescopic rod of the electric push rod (3) is fixed to the air pipe (11).

2. The carbon fiber yarn spreading device according to claim 1, characterized in that: It also includes a meter counter (4) and a controller (5), wherein the meter counter (4) and the controller (5) are both fixed on the frame (2), the telecommunication output end of the meter counter (4) is connected to the telecommunication input end of the controller (5), and the telecommunication output end of the controller (5) is connected to the electrical signal input end of the motor that controls the rotation of the carbon fiber unwinding roller.

3. The carbon fiber yarn spreading device according to claim 1, characterized in that: The frame (2) is provided with two slide rails (6) whose length direction is consistent with the X-axis direction, and the slide rails (6) are provided with slide grooves (61). A slider (7) is fixed below each end of the air pipe (11), and each slider (7) can slide in a corresponding slide groove (61).

4. The carbon fiber yarn spreading device according to claim 1, characterized in that: A forked connecting sleeve (8) is interference-fixed at the free end of the telescopic rod of the electric push rod (3); a horizontal fixing plate (9) is fixed below the middle of the air pipe (11); a connecting hole (91) is provided on the fixing plate (9); the forked connecting sleeve (8) comprises an upper connecting ear (81) and a lower connecting ear (82) with a gap; the upper connecting ear (81) is provided with a fixing hole I (811); the lower connecting ear (82) is provided with a fixing hole II (821); the fixing plate (9) can be inserted into the upper connecting ear (81) and the lower connecting ear (82); a bolt (10) is inserted into the fixing hole I (811), the connecting hole (91) and the fixing hole II (821) in sequence; a nut (20) is then threadedly connected at the tail of the bolt (10) to fix the fixing plate (9) and the forked connecting sleeve (8) together.

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