A cutting device for carbon fiber hard felt convenient to adjust

Abstract

The utility model discloses a kind of cutting device of carbon fiber hard felt convenient to adjust, including cutting box, hard felt import and hard felt export are set on the cutting box, and cutting roller is rotatably arranged inside cutting box, two groups of cutting knife components are installed in cutting roller side, and cutting knife component is between two groups of extrusion roller components, cutting knife component and two groups of extrusion roller component fixed mounting are in the top of moving block, and first electric push rod that U-shaped groove inside is arranged moves driving moving block, second electric push rod that cutting box inside is arranged moves driving U-shaped groove, the utility model slides moving block in U-shaped groove by first electric push rod, drives two groups of cutting knife components to move, and then change cutting knife distance to adapt different target width, cooperate multiple cutting grooves on cutting roller, to make the cutting size of carbon fiber hard felt be convenient to adjust, adapt multi-specification demand.

Description

Technical Field

[0001] This utility model mainly relates to the field of carbon fiber rigid felt technology, specifically a cutting device for easily adjustable carbon fiber rigid felt. Background Technology

[0002] Carbon fiber rigid felt is widely used in aerospace, metallurgy, new energy and other fields due to its excellent properties such as high temperature resistance, corrosion resistance and low thermal conductivity. Its finished products often need to be cut into different widths and shapes according to specific scenarios.

[0003] Traditional cutting devices typically have fixed cutting blade positions. If the cutting width needs to be changed, the blade assembly must be disassembled and reinstalled, which is cumbersome and time-consuming (each adjustment takes 10-15 minutes). This makes it difficult to meet the needs of small-batch, multi-specification production. In addition, carbon fiber felt is loose and has a certain degree of elasticity, making it prone to shifting due to uneven tension during the cutting process. Existing devices often have a fixed pressure design for the extrusion positioning structure, which cannot dynamically adjust the extrusion pressure according to the thickness of the felt (e.g., 5-50mm). This can easily lead to slippage due to insufficient pressure or deformation and fiber shedding of the felt due to excessive pressure. A large amount of carbon fiber dust is generated during the cutting process. If not handled in time, this can not only harm the health of operators but also affect the sensitivity of the equipment's transmission components due to dust accumulation, reducing the lifespan of the device. Utility Model Content

[0004] This utility model provides a solution that is significantly different from existing technologies, addressing the problem that existing solutions are too simplistic. It mainly provides a cutting device for easily adjustable carbon fiber rigid felt, thereby solving the technical problems mentioned in the background.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: A cutting device for easy adjustment of carbon fiber rigid felt includes a cutting box with a rigid felt inlet and a rigid felt outlet. A cutting roller is rotatably arranged inside the cutting box. Two sets of cutting blade assemblies are installed on one side of the cutting roller and are located between the two sets of extrusion roller assemblies. The cutting blade assembly and the two sets of extrusion roller assemblies are fixedly installed on the top of a moving block. A first electric push rod for driving the moving block is arranged inside a U-shaped groove. A second electric push rod for driving the U-shaped groove is arranged inside the cutting box.

[0006] Preferably, the bottom of the cutting box is provided with an air vent, and the air vent uses a filter assembly and a fan to draw in and filter the impurity gas inside the cutting box.

[0007] Preferably, the cutting roller has several sets of cutting grooves.

[0008] Preferably, the cutting blade assembly includes a cutting blade, which is rotatably mounted inside a blade groove, and a motor for driving the cutting blade to rotate is provided outside the blade groove.

[0009] Preferably, the extrusion roller assembly includes a roller body, which is rotatably disposed inside a fixed frame. A connecting column is installed on one side of the fixed frame, and the end of the connecting column is connected to a spring disposed inside a fixed groove. A pressure sensor for detecting the extrusion force of the roller body is disposed inside the fixed groove.

[0010] Preferably, the movable block is slidably connected to the inside of the U-shaped groove.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: The first electric push rod drives the moving block to slide in the U-shaped groove, which in turn moves the two sets of cutting blade assemblies, thereby changing the cutting blade spacing to adapt to different target widths. In conjunction with the multiple cutting grooves on the cutting roller, the cutting size of the carbon fiber rigid felt can be easily adjusted to meet various specifications. The springs in the extrusion roller assembly provide elastic pressure, which, combined with real-time monitoring and feedback from pressure sensors, allows the rollers to apply appropriate extrusion force to carbon fiber rigid felt of different thicknesses. This prevents the rigid felt from slipping or deforming due to improper pressure, thus ensuring cutting stability. The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the internal three-dimensional structure of the cutting box of this utility model. Figure 1 ; Figure 2 This is a schematic diagram of the internal three-dimensional structure of the cutting box of this utility model. Figure 2 ; Figure 3 This is a top view cross-sectional structural diagram of the cutting box of this utility model; Figure 4 This is a schematic diagram of the extrusion roller assembly of this utility model.

[0013] Numbering on the map: 1. Cutting box; 2. Cutting roller; 3. Cutting blade assembly; 4. Extrusion roller assembly; 401. Roller body; 402. Connecting column; 403. Spring; 404. Pressure sensor; 5. Moving block; 6. U-shaped groove; 7. First electric push rod; 8. Second electric push rod. Detailed Implementation

[0014] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive.

[0015] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly associated with those skilled in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0017] Please refer to the appendix carefully. Figure 1-4 A cutting device for easily adjustable carbon fiber rigid felt is provided. The cutting box 1 has a door on one side and a rigid felt inlet and a rigid felt outlet on the cutting box 1. A cutting roller 2 is rotatably installed inside the cutting box 1. The carbon fiber rigid felt enters through the rigid felt inlet and is guided and conveyed by the cutting roller 2. Finally, it is conveyed from the rigid felt outlet to the outside of the cutting box 1. An air vent is provided at the bottom of the cutting box 1. The air vent draws and filters the impurities in the gas inside the cutting box 1 through a filter assembly and a fan. The filter assembly can be a filter screen box. The fan is connected to the air vent through the filter assembly to filter the impurities in the gas entering the filter assembly.

[0018] The cutting roller 2 has several sets of cutting grooves. Two sets of cutting blade assemblies 3 are installed on one side of the cutting roller 2. The cutting blade assembly 3 can move to different positions of the cutting groove to perform cutting operations, thereby changing the cutting size. The cutting blade assembly 3 includes a cutting blade, which is rotatably installed inside the blade groove. A motor that drives the cutting blade to rotate is provided outside the blade groove. The clearance between the cutting blade and the cutting groove of the cutting roller 2 is 0.1-0.3mm (adjusted according to the thickness of the hard felt, with a smaller value for thin felt), ensuring thorough cutting and no blade wear.

[0019] The cutting blade assembly 3 is located between two sets of extrusion roller assemblies 4. The extrusion roller assembly 4 includes a roller body 401, which is rotatably mounted inside the fixed frame. A connecting column 402 is installed on one side of the fixed frame, and the end of the connecting column 402 is connected to a spring 403 installed inside the fixed groove. A pressure sensor 404 is installed inside the fixed groove to detect the extrusion pressure of the roller body 401. The pressure sensor 404 is linked with the control system. The two sets of extrusion roller assemblies 4 form a "front and rear clamp" on the hard felt through the elastic pressure of the spring 403. With the real-time monitoring of the pressure sensor 404, the extrusion pressure can be dynamically adjusted, such as automatically maintaining a pressure of 50-80N for 20mm thick hard felt, to avoid slippage caused by uneven thickness of hard felt or fluctuation of conveying speed.

[0020] The cutting blade assembly 3 and the two sets of extrusion roller assemblies 4 are fixedly installed on the top of the moving block 5, and a first electric push rod 7 is provided inside the U-shaped groove 6 to drive the moving block 5 to move. Under the action of the first electric push rod 7, the moving block 5 can move along the direction of the U-shaped groove 6. A second electric push rod 8 is provided inside the cutting box 1 to drive the U-shaped groove 6 to move. The second electric push rod 8 can adjust the distance between the cutting blade assembly 3 and the two sets of extrusion roller assemblies 4 and the cutting roller 2. The first electric push rod 7 and the second electric push rod 8 are electric push rods with an IP65 or higher protection rating (IP65 rating can prevent dust intrusion). The piston rod surface is chrome-plated to prevent dust from directly contacting the piston rod.

[0021] The specific operating procedure of this utility is as follows: Start the equipment control system. According to the target width of the carbon fiber rigid felt to be cut, drive the moving block 5 to slide in the U-shaped groove 6 through the first electric push rod 7, so as to drive the two sets of cutting blade assemblies 3 to move synchronously with a moving accuracy of ±0.1mm. Observe the corresponding position of the cutting blade assembly 3 and the cutting groove on the cutting roller 2 to ensure that the distance between the two sets of cutting blades is consistent with the target width. The distance value can be read in real time through the control system display screen. After the adjustment is completed, lock the position of the moving block 5.

[0022] The carbon fiber rigid felt roll is fixed on the unwinding frame on the outside of the cutting box 1. The free end of the rigid felt is pulled to make it pass smoothly through the rigid felt inlet and slowly fed into the inside of the cutting box 1, so that the rigid felt comes into contact with the surface of the cutting roller 2. Finally, it moves through the rigid felt outlet to the outside of the cutting box 1 and connects with the winding device.

[0023] The second electric push rod 8 is activated, driving the U-shaped groove 6 to move the cutting blade assembly 3 and the extrusion roller assembly 4 closer to the cutting roller 2 until the roller body 401 of the extrusion roller assembly 4 contacts the surface of the hard felt. As the U-shaped groove 6 continues to move, the spring 403 in the fixed groove is compressed, pushing the roller body 401 to apply pressure to the hard felt through the connecting column 402. The pressure sensor 404 provides real-time feedback of the pressure value, which is displayed on the control system interface. When the pressure reaches the preset value, such as 60N for 15mm thick hard felt, the second electric push rod 8 stops moving. The roller body 401 is held stably by the elasticity of the spring 403, ensuring that the hard felt is taut and does not slip. During the movement, when the cutting blade assembly 3 contacts the hard felt, the cutting blade assembly 3 can be activated to open the hard felt.

[0024] The winding device starts to rotate (the conveying speed is set to 0.8m / min), driving the hard felt to move at a constant speed. At the same time, the motor of the cutting blade assembly 3 starts, driving the cutting blade to rotate. The blade is embedded in the cutting groove of the cutting roller 2 to continuously cut the hard felt. During the cutting process, the fan is turned on to suck up the carbon fiber dust generated during cutting through the air vent at the bottom of the cutting box 1. After the dust is filtered by the filter screen box of the filter assembly, the clean gas is discharged by the fan to avoid dust pollution.

[0025] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A cutting device for easily adjustable carbon fiber rigid felt, comprising a cutting box (1), characterized in that: The cutting box (1) is provided with a hard felt inlet and a hard felt outlet, and a cutting roller (2) is rotatably arranged inside the cutting box (1). Two sets of cutting knife assemblies (3) are installed on one side of the cutting roller (2), and the cutting knife assembly (3) is located between two sets of extrusion roller assemblies (4). The cutting knife assembly (3) and the two sets of extrusion roller assemblies (4) are fixedly installed on the top of the moving block (5), and a first electric push rod (7) is provided inside the U-shaped groove (6) to drive the moving block (5) to move. A second electric push rod (8) is provided inside the cutting box (1) to drive the U-shaped groove (6) to move.

2. The cutting device for easily adjustable carbon fiber rigid felt according to claim 1, characterized in that: The bottom of the cutting box (1) is provided with an air vent, and the air vent uses a filter assembly and a fan to draw and filter the impurities inside the cutting box (1).

3. The cutting device for easily adjustable carbon fiber rigid felt according to claim 1, characterized in that: The cutting roller (2) has several sets of cutting grooves.

4. The cutting device for easily adjustable carbon fiber rigid felt according to claim 1, characterized in that: The cutting blade assembly (3) includes a cutting blade, which is rotatably mounted inside the blade groove, and a motor for driving the cutting blade to rotate is provided outside the blade groove.

5. The cutting device for easily adjustable carbon fiber rigid felt according to claim 1, characterized in that: The extrusion roller assembly (4) includes a roller body (401), and the roller body (401) is rotatably disposed inside the fixed frame. A connecting column (402) is installed on one side of the fixed frame, and the end of the connecting column (402) is connected to a spring (403) disposed inside the fixed groove. A pressure sensor (404) is disposed inside the fixed groove to detect the extrusion force of the roller body (401).

6. The cutting device for easily adjustable carbon fiber rigid felt according to claim 1, characterized in that: The movable block (5) is slidably connected to the U-shaped groove (6).

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