An automatic wire arranging machine for preparing carbon fiber composite interlaminar shear strength sample

Abstract

The utility model belongs to the field of composite material test technology, concretely relates to a kind of automatic wire arranging machine of preparation carbon fiber composite material interlaminar shear strength sample bar, including fixed plate, the fixed plate is rotatably connected with wire withdrawal component, the wire withdrawal component right side is provided with two extension wheels, one tension sensor guide wheel is provided between two the extension wheels, two The extension wheel right side is provided with impregnation component, the impregnation component is fixedly installed on fixed plate, the left and right sides above the impregnation component are respectively provided with lead-in guide wheel and lead-out guide wheel, the lead-in guide wheel and lead-out guide wheel are rotatably connected with fixed plate, the right side of lead-out guide wheel is provided with wire arranging component, the wire arranging component is fixedly installed on fixed plate, the utility model integrates wire withdrawal component, impregnation component and wire arranging component on fixed plate, and it is simple in structure, small in use space, convenient to operate, single person can independently operate to complete, and sample is made with relatively fast efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of composite material testing technology, specifically relating to an automatic fiber feeding machine for preparing interlaminar shear strength specimens of carbon fiber composite materials. Background Technology

[0002] Carbon fiber, as a brittle material, is rarely used alone. It is mostly combined with epoxy resin to make composite materials to give full play to its excellent properties. Since the mechanical properties of carbon fiber reinforced resin matrix composites depend on the bonding performance between the resin matrix and the reinforcing carbon fiber interface, the interlaminar shear strength of carbon fiber is often used to measure the bonding performance of composite materials.

[0003] In carbon fiber interlaminar shear strength testing, the core quality of sample preparation depends on the uniformity and consistency of carbon fiber filament arrangement. Uneven filament arrangement can lead to uneven resin distribution, porosity, or fiber twisting, thus significantly reducing the accuracy and reliability of test results. In existing technologies, the unwinding, impregnation, and filament arrangement processes are relatively dispersed and all are performed manually. In these three processes, there are issues such as insufficient precision in controlling key process parameters, difficulty in ensuring the uniformity of coating thickness, and difficulty in controlling the tension of carbon fiber filaments during manual winding and arrangement, resulting in low work efficiency and high labor costs. Utility Model Content

[0004] This invention addresses the problems of low work efficiency and high labor costs caused by the dispersed processes in preparing interlaminar shear strength specimens of carbon fiber composites by providing an automatic fiber feeding machine for preparing interlaminar shear strength specimens of carbon fiber composites.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An automatic fiber feeding machine for preparing interlaminar shear strength specimens of carbon fiber composites includes a fixed plate. A fiber unwinding component is rotatably connected to the fixed plate. Two extension rollers are arranged on the right side of the fiber unwinding component, and a tension sensor guide roller is arranged between the two extension rollers. The two extension rollers and the tension sensor guide roller are arranged in a triangle and rotatably connected to the fixed plate. The tension sensor guide roller is wired to a controller. A resin impregnation component is arranged on the right side of the two extension rollers and is fixedly mounted on the fixed plate. An inlet guide roller and an outlet guide roller are respectively arranged on the left and right sides above the resin impregnation component. Both the inlet guide roller and the outlet guide roller are rotatably connected to the fixed plate. A fiber feeding component is arranged on the right side of the outlet guide roller and is fixedly mounted on the fixed plate.

[0006] Furthermore, the unwinding component includes an air shaft on which a carbon fiber filament spool is mounted. One end of the air shaft passes through a fixing plate and is connected to the output shaft of a geared motor. The geared motor is fixedly mounted on the fixing plate and is wired to a controller.

[0007] Furthermore, the impregnation component includes an impregnation tank, with fixed plates at both ends of the impregnation tank. Two auxiliary guide wheels are provided above the impregnation tank and are rotatably connected to the fixed plates. The two auxiliary guide wheels are located between the impregnation tank and the lead-in guide wheel and the lead-out guide wheel and are on the same horizontal line. The lower parts of the two auxiliary guide wheels extend into the interior of the impregnation tank.

[0008] Furthermore, the wire-laying component includes a support platform, which is fixedly mounted on a fixed plate. A groove is provided on the support platform, and guide rails are fixedly mounted on both sides of the groove. A lead screw is provided in the middle of the groove, and the lead screw is connected to a stepper motor via a coupling. The stepper motor is fixedly mounted on the outer wall of the support platform. Two sliders are threadedly connected to the lead screw, and the guide rails are slidably connected to the sliders. A wire-laying frame is mounted on the upper end face of the two sliders. A wire-laying wheel is rotatably mounted on the wire-laying frame, and one end of the wire-laying wheel passes through the wire-laying frame and is connected to the output shaft of a circumferential motor. The circumferential motor is fixedly mounted on the wire-laying frame, and the stepper motor and the circumferential motor are wiredly connected to a controller.

[0009] Furthermore, the impregnation tank is a constant temperature heating box.

[0010] Compared with the prior art, the present invention has the following advantages: 1. This utility model integrates the fiber unwinding component, the glue-impregnating component, and the fiber unwinding component onto a fixed plate. It has a simple structure, requires little space, is easy to operate, and can be operated independently by a single person, resulting in faster sample production.

[0011] 2. This utility model uses a geared motor and a circumferential motor to drive the air shaft and the yarn feeding wheel to rotate respectively. The tension sensor guide wheel detects the data in real time and uploads it to the controller. Then the controller adjusts the speed of the geared motor and the circumferential motor in real time to ensure that each carbon fiber filament is subjected to uniform force.

[0012] 3. This utility model uses a combination of a lead screw and a stepper motor to drive the wire feeding frame to move left and right, and the speed of the stepper motor is controlled by a controller to prevent uneven density and path deviation of the carbon fiber wires wound on the wire feeding wheel.

[0013] 4. The impregnation tank of this utility model adopts a constant temperature heating box and is equipped with a temperature sensor inside to detect and control the temperature of the liquid in the tank in real time, ensuring the consistent fluidity of the liquid in the tank and better controlling the glue content of the carbon fiber filaments. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is the front view of the present invention; Figure 3 This is a rear view of the present invention; Figure 4 This is a schematic diagram of the wire-laying component of this utility model; In the figure, there is a fixed plate 1, an extension wheel 2, an inlet guide wheel 3, an outlet guide wheel 4, an air shaft 5, a carbon fiber filament spool 6, a geared motor 7, an impregnation tank 8, an auxiliary guide wheel 9, a support platform 10, a groove 11, a guide rail 12, a lead screw 13, a stepper motor 14, a slider 15, a filament rack 16, a filament rack wheel 17, and a circumferential motor 18. Detailed Implementation

[0015] To further illustrate the technical solution of this utility model, the following embodiments will be used to further explain this utility model.

[0016] like Figures 1-3 As shown, an automatic fiber feeding machine for preparing interlaminar shear strength specimens of carbon fiber composites includes a fixed plate 1. A fiber unwinding component is rotatably connected to the fixed plate 1. The fiber unwinding component includes an air shaft 5, on which a carbon fiber filament roll 6 is mounted. One end of the air shaft 5 passes through the fixed plate 1 and is connected to the output shaft of a reduction motor 7. The reduction motor 7 is fixedly mounted on the fixed plate 1 and is wired to a controller. Two extension rollers 2 are arranged on the right side of the fiber unwinding component. A tension sensor guide roller 19 is arranged between the two extension rollers 2. The two extension rollers 2 and the tension sensor guide roller 19 are arranged in a triangle and rotatably connected to the fixed plate 1. The tension sensor guide roller is wired to the controller. An impregnation device is arranged on the right side of the two extension rollers 2. The glue-impregnation component includes an impregnation tank 8, with both ends of the impregnation tank 8 fixedly connected to a fixed plate 1. Two auxiliary guide wheels 9 are arranged above the impregnation tank 8, rotatably connected to the fixed plate 1. The two auxiliary guide wheels 9 are positioned between the impregnation tank 8 and the lead-in guide wheel 3 and lead-out guide wheel 4, and are on the same horizontal line. The lower parts of the two auxiliary guide wheels 9 extend into the interior of the impregnation tank 8. The impregnation component is fixedly mounted on the fixed plate 1. Lead-in guide wheels 3 and lead-out guide wheels 4 are respectively arranged on the left and right sides above the impregnation component, both rotatably connected to the fixed plate 1. A wire-laying component is arranged on the right side of the lead-out guide wheel 4, and the wire-laying component is fixedly mounted on the fixed plate 1. The impregnation tank 8 is a constant temperature heating chamber.

[0017] like Figure 4As shown, the wire-laying component includes a support platform 10, which is fixedly mounted on a fixed plate 1. A groove 11 is provided on the support platform 10, and guide rails 12 are fixedly mounted on both sides of the groove 11. A lead screw 13 is provided in the middle of the groove 11. The lead screw 13 is connected to a stepper motor 14 through a coupling. The stepper motor 14 is fixedly mounted on the outer side wall of the support platform 10. Two sliders 15 are threadedly connected to the lead screw 13. The guide rails 12 are slidably connected to the sliders 15. A wire-laying frame 16 is mounted on the upper end face of the two sliders 15. A wire-laying wheel 17 is rotatably mounted on the wire-laying frame 16. One end of the wire-laying wheel 17 passes through the wire-laying frame 16 and is connected to the output shaft of a circumferential motor 18. The circumferential motor 18 is fixedly mounted on the wire-laying frame 16. The stepper motor 14 and the circumferential motor 18 are wiredly connected to a controller.

[0018] Working steps: First, the worker places the carbon fiber filament spool 6 on the air expansion shaft 5, pulls the starting end of the carbon fiber filament out of the carbon fiber filament spool 6, and then passes it around the three extension rollers 2, the guide roller 3, the auxiliary guide roller 9 and the guide roller 4 in sequence, and then fixes the carbon fiber filament onto the filament feeding roller 17. Then, the required liquid is placed in the impregnation tank 8, and the geared motor 7, the stepper motor 14 and the circumferential motor 18 are turned on to start processing the carbon fiber filament.

[0019] The foregoing has shown and described the main features and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model.

[0020] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An automatic fiber feeding machine for preparing interlaminar shear strength specimens of carbon fiber composite materials, characterized in that: The device includes a fixed plate (1), on which a wire unwinding component is rotatably connected. Two extension wheels (2) are provided on the right side of the wire unwinding component. A tension sensor guide wheel (19) is provided between the two extension wheels (2). The two extension wheels (2) and the tension sensor guide wheel (19) are arranged in a triangle and rotatably connected to the fixed plate (1). The tension sensor guide wheel is wired to a controller. A glue-impregnating component is provided on the right side of the two extension wheels (2). The glue-impregnating component is fixedly installed on the fixed plate (1). An inlet guide wheel (3) and an outlet guide wheel (4) are respectively provided on the left and right sides above the glue-impregnating component. The inlet guide wheel (3) and the outlet guide wheel (4) are rotatably connected to the fixed plate (1). A wire-discharging component is provided on the right side of the outlet guide wheel (4). The wire-discharging component is fixedly installed on the fixed plate (1).

2. The automatic tape-laying machine for preparing a carbon fiber composite interlaminar shear strength coupon of claim 1, wherein: The unwinding component includes an air shaft (5), on which a carbon fiber filament spool (6) is mounted. One end of the air shaft (5) passes through a fixing plate (1) and is connected to the output shaft of a reduction motor (7). The reduction motor (7) is fixedly mounted on the fixing plate (1) and is wired to a controller.

3. The automatic fiber placement machine for preparing carbon fiber composite interlaminar shear strength coupons of claim 1, wherein: The impregnation component includes an impregnation tank (8), which is fixedly connected to a fixing plate (1) at both ends. Two auxiliary guide wheels (9) are provided above the impregnation tank (8). The two auxiliary guide wheels (9) are rotatably connected to the fixing plate (1). The two auxiliary guide wheels (9) are located between the impregnation tank (8) and the lead-in guide wheel (3) and the lead-out guide wheel (4) and are on the same horizontal line. The lower part of the two auxiliary guide wheels (9) extends into the interior of the impregnation tank (8).

4. The automatic fiber feeding machine for preparing interlaminar shear strength specimens of carbon fiber composite materials according to claim 1, characterized in that: The wire feeding component includes a support platform (10), which is fixedly mounted on a fixed plate (1). A groove (11) is provided on the support platform (10), and guide rails (12) are fixedly mounted on both sides of the groove (11). A lead screw (13) is provided in the middle of the groove (11), and the lead screw (13) is connected to a stepper motor (14) through a coupling. The stepper motor (14) is fixedly mounted on the outer side wall of the support platform (10), and threaded onto the lead screw (13). There are two sliders (15), and the guide rail (12) is slidably connected to the sliders (15). A wire guide frame (16) is installed on the upper surface of the two sliders (15). A wire guide wheel (17) is rotatably arranged on the wire guide frame (16). One end of the wire guide wheel (17) passes through the wire guide frame (16) and is connected to the output shaft of the circumferential motor (18). The circumferential motor (18) is fixedly installed on the wire guide frame (16). The stepper motor (14) is wired to the controller of the circumferential motor (18).

5. An automatic fiber feeding machine for preparing interlaminar shear strength specimens of carbon fiber composite materials according to claim 3, characterized in that: The impregnation tank (8) is a constant temperature heating box.

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