Continuous carbon fiber prepreg transverse cutting mechanism with adjustable center distance

Abstract

The invention belongs to the technical field of machining equipment, and discloses a continuous carbon fiber prepreg transverse cutting mechanism with an adjustable center distance. The continuous carbon fiber prepreg transverse cutting mechanism comprises a fixed base, a cutting shaft system, a supporting shaft system, a center distance adjusting module, a clamping module and an auxiliary supporting module. And the cutting shaft system and the supporting shaft system rotate synchronously and perform rolling cutting on the prepreg passing through the cutting shaft system and the supporting shaft system. The fixed base provides an installation space for each module; the center distance adjusting module adjusts the center distance between a cutting knife roller and a supporting roller through an electric cylinder, the cutting depth of a knife is changed, and the cutting requirements of prepregs with different thicknesses or specifications are met. The clamping module is used for enabling the prepreg to continuously and stably enter the cutting knife roller and the supporting roller, and the continuity of the cutting process is guaranteed; the auxiliary supporting module provides rigid supporting for the cantilever ends of the cutting knife roller and the supporting roller, the deformation resistance of the shaft system is remarkably improved, and the cutting stability is guaranteed. According to the continuous carbon fiber prepreg cutting device, high-quality, high-efficiency and high-adaptability cutting of continuous carbon fiber prepreg can be achieved.

Description

Technical Field

[0001] This invention belongs to the field of processing equipment technology and relates to a transverse cutting mechanism for continuous carbon fiber prepreg. Background Technology

[0002] Chopped carbon fiber prepreg is a crucial raw material for molding chopped carbon fiber reinforced composites. The length and uniformity of the chopped prepreg significantly affect the composite's performance, while the cutting efficiency impacts production capacity. However, prepregs typically consist of 20 fiber bundles stacked together, requiring greater cutting force compared to fiber bundles. Furthermore, prepregs come in various thicknesses to meet the performance requirements of the molded products. Therefore, improving the cutting quality of prepregs of different thicknesses while ensuring cutting efficiency is a critical challenge in the prepreg chopping process.

[0003] Nakao Hiroyuki et al. of Mitsubishi Chemical Corporation invented "Method For Manufacturing SMC" (patent number US2023020921A1). This invention uses traction rollers to transport carbon fiber tows and utilizes a compression roller and a cutter to laterally cut the carbon fiber tows. However, the relative positions of the compression roller and the cutter are fixed. As the tow thickness increases, the cutter cannot completely penetrate the tow, failing to guarantee a complete lateral cut and resulting in low cutting quality. Deng Guilin et al.'s patent publication number CN211078923U, entitled "Fiber Short Cutting Machine," invented a cutting device for fiber short cutting. It uses a guillotine-type cutting method, with a crank-connecting rod mechanism driving the cutter up and down for cutting. Its structure is simple, and the cutter's high rigidity is ensured by double-sided support. However, the cutter's reciprocating motion has a half-stroke idle period, resulting in low cutting efficiency. Yang Ying and others from Wuxi Dingqi New Material Technology Co., Ltd. invented "a multi-layer composite carbon fiber short cutting device", patent number CN202211628952.9. In this invention, the driving disc rotates continuously in the same direction, driving the cutter to rise and fall sequentially, thereby achieving the function of cutting the carbon fiber body sequentially. This device is equipped with only one cutter. When facing high-strength carbon fiber prepreg, the cutter is prone to wear and needs to be replaced frequently, which reduces production efficiency.

[0004] In summary, in order to simultaneously meet the cutting quality and efficiency requirements of continuous carbon fiber prepregs of different thicknesses, it is urgent to develop a transverse cutting mechanism that is highly efficient, adaptable to prepregs of different thicknesses, and highly rigid. Summary of the Invention

[0005] To overcome the problems of inability to cut prepregs of varying thicknesses and low cutting efficiency in existing technologies, a continuous carbon fiber prepreg transverse cutting mechanism with adjustable center distance based on a dual-roller rolling cutting method is proposed. This invention utilizes a trapezoidal screw transmission mechanism to convert the screw's rotational motion into linear displacement of the support shaft system along the vertical axis, achieving continuous and precise adjustment of the center distance between the two rollers. After the support shaft system is adjusted to the correct position, the self-locking characteristic of the trapezoidal screw reliably and mechanically locks the center distance between the two rollers, effectively resisting cutting forces and thus changing the depth of the cutter tip into the prepreg. Simultaneously, to address the issue of high cutting forces during the prepreg cutting process, a rigid auxiliary support module is designed, jointly achieving high-quality and high-efficiency cutting of continuous carbon fiber prepregs.

[0006] The technical solution of the present invention:

[0007] A transverse cutting mechanism for continuous carbon fiber prepreg with adjustable center distance, the transverse cutting mechanism for continuous carbon fiber prepreg comprising:

[0008] Fixed base 1, used to install other components of the continuous carbon fiber prepreg transverse cutting mechanism;

[0009] The cutting shaft system 2 is mounted on the fixed base 1 and includes a cutting roller 207 for cutting the prepreg.

[0010] The support shaft system 3 includes a support roller 307 that cooperates with the cutting roller 207 of the cutting shaft system 2. The cutting roller 207 and the support roller 307 of the cutting shaft system 2 perform transverse cutting on the prepreg passing between them during rotational motion.

[0011] The center distance adjustment module 4 is connected between the fixed base 1 and the support shaft system 3. It is used to adjust the center distance between the cutting roller 207 and the support roller 307 to change the depth of the cutting blade installed on the cutting roller 207 into the prepreg.

[0012] Clamping module 5 is used to press the prepreg onto the support roller 307 during the cutting process;

[0013] The auxiliary support module 6 is connected to the fixed base 1 and the support shaft system 3 respectively, and is used to provide support for the cantilever ends of the cutting roller 207 and the support roller 307 to improve rigidity.

[0014] Furthermore, the fixed base 1 is a mounting base composed of a perforated panel 101 and a frame 102.

[0015] Furthermore, the cutting shaft system 2 also includes a drive motor 201, a first reducer 202, a first reducer housing 203, a first coupling 204, a first transmission shaft 205, and a first bearing housing 206. The first bearing housing 206 fixes the cutting shaft system 2 to the fixed base 1. One end of the first transmission shaft 205 passes sequentially through the first bearing housing 206 and the perforated panel 101 of the fixed base 1, and is connected to the cutting roller 207. The other end of the first transmission shaft 205 is connected to the drive motor 201 sequentially through the first coupling 204 and the first reducer 202. The cutting roller 207 is driven to rotate by the drive motor 201 through the first transmission shaft 205, and multiple blades are evenly distributed on the circumference of the cutting roller 207. The first reducer 202 is mounted on the first bearing housing 206 through the first reducer housing 203. The drive motor 201 serves as a power source, and after the torque is increased by the first reducer 202, it drives the first reducer 202 to rotate precisely at a set speed.

[0016] Furthermore, the support shaft system 3 cooperates with the cutting shaft system 2 to provide support for the cutting process. The support shaft system 3 also includes a servo motor 301, a second reducer 302, a second reducer base 303, a second coupling 304, a second transmission shaft 305, and a second bearing seat 306. The second bearing seat 306 is not fixedly installed, but is installed on the floating plate 404 of the center distance adjustment module, thereby realizing its position adjustment. Specifically, the support shaft system 3 is installed on the floating plate 404 of the center distance adjustment module 4 through the first linear guide 405 and the first slider 406. One end of the second transmission shaft 305 passes through the second linear guide 405 and the second slider 406 in sequence. The bearing housing 306, the floating plate 404 of the center distance adjustment module 4, and the perforated panel 101 of the fixed base 1 are connected to the support roller 307. The other end of the second drive shaft 305 is connected to the servo motor 301 in sequence through the second coupling 304 and the second reducer 302. The support roller 307 is driven to rotate by the servo motor 301 through the second drive shaft 305. The support roller 307 has multiple grooves on its circumference that cooperate with the cutter of the cutting roller 207. The second reducer 302 is mounted on the second bearing housing 306 through the second reducer seat 303.

[0017] Furthermore, the drive motor 201 of the cutting shaft system 2 and the servo motor 301 of the support shaft system 3 are synchronously controlled by the same controller to ensure that the speeds of the cutting roller 207 and the support roller 307 are strictly matched during rotation. During cutting, the prepreg passes between the cutting roller 207 and the support roller 307, and the cutting blade on the cutting roller 207 forcefully presses the prepreg into the groove of the support roller 307, using shear stress to achieve instantaneous cutting of the material.

[0018] Furthermore, the center distance adjustment module 4 is used to change the maximum depth at which the cutting tool on the cutting roller 207 cuts into the support roller 307. The center distance adjustment module 4 includes an electric cylinder 401, a floating joint 402, a connecting piece 403, a floating plate 404, a first linear guide rail 405, a first slider 406, and an electric cylinder base 407. The floating plate 404 is connected to the fixed base 1 and is used to fine-tune its position to ensure that the axis of the electric cylinder 401 is parallel to the first linear guide rail 405. The first linear guide rail 405 is fixed to the floating plate 404, and the first slider 406 can slide on the first linear guide rail 405. The second bearing seat 306 of the support shaft system 3 is fixed; the electric cylinder 401 is fixed on the electric cylinder seat 407, the electric cylinder seat 407 is fixed on the fixed base 1, the push rod of the electric cylinder 401 is connected to the floating joint 402, the floating joint 402 is connected to the second bearing seat 306 of the support shaft system 3 through the connecting piece 403, and the extension and retraction of the electric cylinder 401 drives the second bearing seat 306 of the support shaft system 3 to move along the first linear guide rail 405, thereby adjusting the center distance between the cutting shaft system 2 and the support shaft system 3.

[0019] Furthermore, the clamping module 5 is used to stably press the prepreg onto the support roller 307 at the moment of cutting, preventing it from slipping, shifting, or vibrating under the action of high-speed cutting force. The clamping module 5 includes a cylinder 501, a second linear guide rail 502, a second slider 503, a fixing plate 504, and a rotating roller 505. The vertically arranged cylinder 501 and the second linear guide rail 502 are fixed to the perforated panel 101 of the fixing base 1. The second slider 503 is connected to the second linear guide rail 502, can slide vertically, and is connected to the fixing plate 504. The fixing plate 504 is connected to the rotating roller 505. The action of the cylinder 501 drives the rotating roller 505 to move up and down to press the prepreg onto or separate it from the support roller 307. The cylinder 501 drives the rotating roller 505 to move up and down along the guide rail, pressing the prepreg onto the support roller 307 with appropriate pressure before cutting, ensuring the stability of the feed and the accuracy of the cutting position.

[0020] Furthermore, the auxiliary support module 6 includes a support arm, a support head 602, and a bearing 603. It includes a cutter roller support arm 601, a support head 602, a bearing 603, and a support roller support arm 604. The cutter roller support arm 601 is fixed to the perforated panel 101 of the fixed base 1, and the support roller support arm 604 is fixed to the second bearing seat 306 of the support shaft system 3. Both the cutter roller support arm 601 and the support roller support arm 604 have a support head 602 with a bearing 603 at their ends, which respectively contact the outer side of the cantilever end of the cutter roller 207 and the support roller 307 to provide support.

[0021] Furthermore, the cutting roller 207 of the cutting shaft system 2 transmits torque with a key to the first transmission shaft 205, and the contact part between the cutting roller 207 and the auxiliary support module 6 is made of high-rigidity wear-resistant material.

[0022] Furthermore, the torque is transmitted between the support roller 307 of the support shaft system 3 and the second transmission shaft 305 by a key, and the contact part between the support roller 307 and the auxiliary support module 6 is made of a high-rigidity wear-resistant material.

[0023] Furthermore, the rotating roller 505 of the clamping module 5 is arranged in a cantilever configuration.

[0024] The beneficial effects of this invention are as follows: By using a center distance adjustment module, the center distance between the cutting roller and the support roller can be changed, thereby adjusting the maximum cutting depth of the cutter. This allows the mechanism to adapt to different sizes of cutting roller and support roller combinations, and to effectively cut prepregs of different grades and thicknesses, ensuring complete cuts. By adding an auxiliary support module, the structural rigidity of the cutting shaft system and the support shaft system is significantly improved, effectively avoiding shaft deformation caused by periodic cutting force fluctuations and large cutting forces, thus ensuring the stability of the cutting process. Attached Figure Description

[0025] Figure 1 This is a front view of the overall structure of the present invention;

[0026] Figure 2 This is a reverse view of the overall structure of the present invention;

[0027] Figure 3 This is a schematic diagram of the cutting shaft system structure of the present invention;

[0028] Figure 4 These are schematic diagrams of the front and back sides of the support shaft system structure of the present invention;

[0029] Figure 5 This is a schematic diagram of the center distance adjustment module structure of the present invention;

[0030] Figure 6 This is a schematic diagram of the clamping module structure of the present invention;

[0031] Figure 7 This is a schematic diagram of the auxiliary support module structure of the present invention;

[0032] In the diagram: 1-Fixed base, 2-Cutting shaft system, 3-Support shaft system, 4-Center distance adjustment module, 5-Clamping module, 6-Auxiliary support module, 101-Panel with holes, 102-Frame, 201-Drive motor, 202-First reducer, 203-First reducer base, 204-First coupling, 205-First transmission shaft, 206-First bearing housing, 207-Cutting roller, 301-Servo motor, 302-Second reducer, 303-Second reducer base, 304-Second... Coupling, 305-Second drive shaft, 306-Second bearing seat, 307-Support roller, 401-Electric cylinder, 402-Floating joint, 403-Connecting piece, 404-Floating plate, 405-First linear guide rail, 406-First slider, 407-Electric cylinder seat, 501-Cylinder, 502-Second linear guide rail, 503-Second slider, 504-Fixed plate, 505-Rotating roller, 601-Cutter roller support arm, 602-Support head, 603-Bearing, 604-Support roller support arm. Detailed Implementation

[0033] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings and technical solutions.

[0034] Example

[0035] A transverse cutting mechanism for continuous carbon fiber prepreg with adjustable center spacing, as described in the reference. Figure 1 and Figure 2 The continuous carbon fiber prepreg transverse cutting mechanism includes a fixed base 1, a cutting shaft system 2, a support shaft system 3, a center distance adjustment module 4, a clamping module 5, and an auxiliary support module 6. The cutting shaft system 2 rotates the cutting roller 207, and the support shaft system 3 rotates the support roller 307; the two work together to complete the cutting. The center distance adjustment module 4 changes the center distance between the cutting roller 207 and the support roller 307. The clamping module 5 clamps the prepreg onto the support roller 307 during cutting. The auxiliary support module 6 supports the cantilever ends of the cutting shaft system 2 and the support shaft system 3.

[0036] Furthermore, referring to Figure 3The cutting shaft system 2 includes a drive motor 201, a first reducer 202, a first reducer housing 203, a first coupling 204, a first transmission shaft 205, a first bearing housing 206, and a cutting roller 207. The first bearing housing 206 fixes the cutting shaft system 2 to the fixed base 1. One end of the first transmission shaft 205 passes sequentially through the first bearing housing 206 and the perforated panel 101 of the fixed base 1, connecting to the cutting roller 207. The other end of the first transmission shaft 205 is connected to the drive motor 201 sequentially through the first coupling 204 and the first reducer 202. The cutting roller 207 is driven to rotate by the drive motor 201 via the first transmission shaft 205, and multiple cutting tools are evenly distributed on the circumference of the cutting roller 207. The first reducer 202 is mounted on the first bearing housing 206 via the first reducer housing 203. The drive motor 201 serves as a power source; after increasing the torque through the first reducer 202, it drives the first reducer 202 to rotate precisely at a set speed. In this embodiment, the cutting roller 207 has a diameter of 200mm and 24 cutting blades are evenly distributed on its circumference.

[0037] Furthermore, referring to Figure 4 The support shaft system 3 cooperates with the cutting shaft system 2 to provide support for the cutting process. The support shaft system 3 also includes a servo motor 301, a second reducer 302, a second reducer base 303, a second coupling 304, a second transmission shaft 305, and a second bearing seat 306. The second bearing seat 306 is not fixedly installed but is mounted on the floating plate 404 of the center distance adjustment module, thereby achieving position adjustment. Specifically, the support shaft system 3 is mounted on the floating plate 404 of the center distance adjustment module 4 via the first linear guide 405 and the first slider 406. One end of the second transmission shaft 305 passes through the second... The bearing housing 306, the floating plate 404 of the center distance adjustment module 4, and the perforated panel 101 of the fixed base 1 are connected to the support roller 307. The other end of the second drive shaft 305 is connected to the servo motor 301 via the second coupling 304 and the second reducer 302. The support roller 307 is driven to rotate by the servo motor 301 via the second drive shaft 305. The support roller 307 has multiple grooves on its circumference that mate with the cutting tool of the cutting roller 207. The second reducer 302 is mounted on the second bearing housing 306 via the second reducer seat 303. In this embodiment, the support roller 307 has a diameter of 156 mm and 24 grooves with a width of 5 mm are evenly distributed on its circumference for mates with the cutting tool.

[0038] Furthermore, referring to Figure 5The center distance adjustment module 4 includes an electric cylinder 401, a floating joint 402, a connecting piece 403, a floating plate 404, a first linear guide rail 405, a first slider 406, and an electric cylinder base 407. The floating plate 404 is connected to the fixed base 1 and is used to fine-tune its own position to ensure that the axis of the electric cylinder 401 is parallel to the first linear guide rail 405. The first linear guide rail 405 is fixed on the floating plate 404, and the first slider 406 can slide on the first linear guide rail 405. A second bearing seat 306 is fixed to the support shaft system 3; an electric cylinder 401 is fixed to an electric cylinder seat 407, which is fixed to a fixed base 1. The push rod of the electric cylinder 401 is connected to a floating joint 402, which is connected to the second bearing seat 306 of the support shaft system 3 via a connecting piece 403. The extension and retraction of the electric cylinder 401 drives the second bearing seat 306 of the support shaft system 3 to move along the first linear guide rail 405, thereby adjusting the center distance between the cutting shaft system 2 and the support shaft system 3. For example, during the cutting process, when the push rod of the electric cylinder 401 is extended, the center distance between the cutting roller 207 and the support roller 307 can be adjusted to 175mm.

[0039] Furthermore, referring to Figure 6 The clamping module 5 includes a cylinder 501, a second linear guide rail 502, a second slider 503, a fixing plate 504, and a rotating roller 505. The vertically arranged cylinder 501 and the second linear guide rail 502 are fixed to the perforated panel 101 of the fixed base 1. The second slider 503 is connected to the second linear guide rail 502, can slide vertically, and is connected to the fixing plate 504. The fixing plate 504 is connected to the rotating roller 505. The action of the cylinder 501 drives the rotating roller 505 to move up and down, pressing the prepreg onto or away from the support roller 307. The cylinder 501 drives the rotating roller 505 to move up and down along the guide rail, pressing the prepreg onto the support roller 307 with appropriate pressure before cutting, ensuring the stability of the feed and the accuracy of the cutting position. When the cylinder 501 extends (e.g., a stroke of 60mm), the rotating roller 505 descends and fits tightly against the support roller 307, thereby pressing the prepreg.

[0040] Furthermore, referring to Figure 7 The device includes a support arm, a support head 602, and a bearing 603. It includes a cutter roller support arm 601, a support head 602, a bearing 603, and a support roller support arm 604. The cutter roller support arm 601 is fixed to the perforated panel 101 of the fixed base 1, and the support roller support arm 604 is fixed to the second bearing seat 306 of the support shaft system 3. Both the cutter roller support arm 601 and the support roller support arm 604 have a support head 602 with a bearing 603 at their ends, which respectively contact the outer side of the cantilever end of the cutter roller 207 and the support roller 307 to provide support.

[0041] It should be noted that in practical applications, when it is necessary to replace the cutting roller 207 or support roller 307 with different diameters, or when it is necessary to cut prepreg of different thicknesses, the operator can reset the center distance between the two rollers by controlling the center distance adjustment module 4 to ensure that the cutter can cut into the material at the optimal depth, thereby ensuring the cutting quality.

[0042] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A transverse cutting mechanism for continuous carbon fiber prepreg with adjustable center distance, characterized in that, The continuous carbon fiber prepreg transverse cutting mechanism includes: Fixed base (1) for mounting other components of the continuous carbon fiber prepreg transverse cutting mechanism; A cutting shaft system (2) is mounted on a fixed base (1) and includes a cutting roller (207) for cutting the prepreg. The support shaft system (3) includes a support roller (307) that cooperates with the cutting roller (207) of the cutting shaft system (2). The cutting roller (207) and the support roller (307) of the cutting shaft system (2) perform transverse cutting on the prepreg passing between them during rotational motion. The center distance adjustment module (4) is connected between the fixed base (1) and the support shaft system (3) to adjust the center distance between the cutting roller (207) and the support roller (307) to change the depth of the cutting blade installed on the cutting roller (207) into the prepreg. A clamping module (5) is used to press the prepreg onto the support roller (307) during the cutting process; The auxiliary support module (6) is connected to the fixed base (1) and the support shaft system (3) respectively, and is used to provide support for the cantilever ends of the cutting roller (207) and the support roller (307) to improve rigidity.

2. The adjustable center-distance continuous carbon fiber prepreg transverse cutting mechanism according to claim 1, characterized in that, The fixed base (1) is an installation base consisting of a perforated panel (101) and a frame (102).

3. The center-distance adjustable continuous carbon fiber prepreg transverse cutting mechanism according to claim 2, characterized in that, The cutting shaft system (2) also includes a drive motor (201), a first reducer (202), a first reducer base (203), a first coupling (204), a first transmission shaft (205), and a first bearing housing (206). The first bearing housing (206) fixes the cutting shaft system (2) on the fixed base (1). One end of the first transmission shaft (205) passes through the perforated panel (101) of the first bearing housing (206) and the fixed base (1) in sequence and is connected to the cutting roller (207). The other end of the first transmission shaft (205) is connected to the drive motor (201) in sequence through the first coupling (204) and the first reducer (202). The cutting roller (207) is driven to rotate by the drive motor (201) through the first transmission shaft (205), and multiple cutting tools are evenly distributed on the circumference of the cutting roller (207). The first reducer (202) is mounted on the first bearing housing (206) through the first reducer base (203).

4. The center-distance adjustable continuous carbon fiber prepreg transverse cutting mechanism according to claim 3, characterized in that, The support shaft system (3) also includes a servo motor (301), a second reducer (302), a second reducer housing (303), a second coupling (304), a second transmission shaft (305), and a second bearing housing (306). The second bearing housing (306) mounts the support shaft system (3) onto the floating plate (404) of the center distance adjustment module (4) via the first linear guide (405) and the first slider (406). One end of the second transmission shaft (305) passes sequentially through the second bearing housing (306) and the floating plate (404) of the center distance adjustment module (4). The perforated panel (101) of the fixed base (1) (404) is connected to the support roller (307). The other end of the second drive shaft (305) is connected to the servo motor (301) through the second coupling (304) and the second reducer (302) in sequence. The support roller (307) is driven to rotate by the servo motor (301) through the second drive shaft (305). The support roller (307) has multiple grooves on its circumference that cooperate with the cutter of the cutting roller (207). The second reducer (302) is mounted on the second bearing seat (306) through the second reducer seat (303).

5. The center-distance adjustable continuous carbon fiber prepreg transverse cutting mechanism according to claim 4, characterized in that, The center distance adjustment module (4) includes an electric cylinder (401), a floating joint (402), a connecting piece (403), a floating plate (404), a first linear guide rail (405), a first slider (406), and an electric cylinder base (407); the floating plate (404) is connected to the fixed base (1); the first linear guide rail (405) is fixed on the floating plate (404), the first slider (406) can slide on the first linear guide rail (405), and a second bearing seat (30) of the support shaft system (3) is fixed on the first slider (406). 6) The electric cylinder (401) is fixed on the electric cylinder seat (407), the electric cylinder seat (407) is fixed on the fixed base (1), the push rod of the electric cylinder (401) is connected to the floating joint (402), the floating joint (402) is connected to the second bearing seat (306) of the support shaft system (3) through the connecting piece (403), and the extension and retraction of the electric cylinder (401) drives the second bearing seat (306) of the support shaft system (3) to move along the first linear guide rail (405), thereby adjusting the center distance between the cutting shaft system (2) and the support shaft system (3).

6. The center-distance adjustable continuous carbon fiber prepreg transverse cutting mechanism according to claim 5, characterized in that, The clamping module (5) includes a cylinder (501), a second linear guide rail (502), a second slider (503), a fixing plate (504), and a rotating roller (505). The vertically arranged cylinder (501) and the second linear guide rail (502) are fixed on the perforated panel (101) of the fixing base (1). The second slider (503) is connected to the second linear guide rail (502), can slide vertically, and is connected to the fixing plate (504). The fixing plate (504) is connected to the rotating roller (505). The action of the cylinder (501) drives the rotating roller (505) to move up and down to press the prepreg onto or separate it from the support roller (307).

7. The center-distance adjustable continuous carbon fiber prepreg transverse cutting mechanism according to claim 6, characterized in that, The auxiliary support module (6) includes a cutter roller support arm (601), a support head (602), a bearing (603), and a support roller support arm (604). The cutter roller support arm (601) is fixed on the perforated panel (101) of the fixed base (1), and the support roller support arm (604) is fixed on the second bearing seat (306) of the support shaft system (3). The ends of the cutter roller support arm (601) and the support roller support arm (604) are provided with support heads (602) with bearings (603), which contact the outer side of the cantilever end of the cutter roller (207) and the support roller (307) respectively to provide support.

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