A carbon fiber prepreg slitting production device
The position of the cutter is fixed by connecting the adjusting head with the adjusting hole, which solves the problem of easy displacement of the slitting blade and achieves stable slitting quality and efficient production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO HUAHAO NEW MATERIAL TECH CO LTD
- Filing Date
- 2025-05-16
- Publication Date
- 2026-05-29
AI Technical Summary
The existing carbon fiber prepreg slitting production equipment uses an inertial fixing method when adjusting the slitting blade position, which causes the slitting blade to easily shift and vibrate, affecting the slitting dimensional accuracy and production stability.
The cutter position is fixed by inserting the adjusting head into the adjusting hole, and the spring elasticity achieves stable fixation to prevent the cutter from shifting.
Ensure the slitting blade is securely fixed to improve slitting quality and production stability, enhance equipment applicability, and reduce maintenance costs.
Smart Images

Figure CN224295970U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of slitting equipment technology, specifically a carbon fiber prepreg slitting production device. Background Technology
[0002] Carbon fiber prepregs, with their high strength and lightweight properties, are widely used in aerospace and automotive manufacturing. Slitting is a crucial step in the production process of carbon fiber prepregs. Slitting quality directly affects the subsequent molding effect of the prepreg, impacting the performance and quality of the final product. The slitting equipment is therefore closely related to slitting quality.
[0003] Utility model patent CN219705455U discloses a carbon fiber prepreg slitting production device. This device includes a main body, with two connecting plates fixedly connected to the upper surface of the main body. A slitting assembly is installed inside each connecting plate. The slitting assembly includes a first support plate, one side of which is fixedly connected to the outer wall of the connecting plate. A first motor is fixedly connected to the upper surface of the first support plate. A rotating shaft is movably connected to the inner wall of the connecting plate, one end of which extends through the connecting plate to the outside and is fixedly connected to the output shaft of the first motor. Two toothed grooves are formed on the outer surface of the rotating shaft. Multiple locking blocks are movably connected inside the toothed grooves. Two locking rings are fixedly connected to the upper surface of each locking block, and slitting blades are fixedly connected to the outer surfaces of both locking rings. By moving the retaining ring on the toothed groove, the position of the slitting blade is changed. Then, the retaining ring is rotated to make the retaining block enter the teeth of the toothed groove. When the rotating shaft rotates, the retaining ring is fixed by inertia. Compared with the prior art, this utility model can quickly adjust the distance between the slitting blades, thereby adjusting the slitting width and improving work efficiency.
[0004] Although the carbon fiber prepreg slitting production device allows for easy adjustment of the slitting width, it still suffers from the following problems in practical use: While the device uses inertia to fix the retaining ring when adjusting the slitting blade position, this inertial fixing method has significant drawbacks, failing to provide continuous and stable support for the slitting blade. During the slitting process, the slitting blade is prone to displacement and vibration, leading to deviations in slitting dimensional accuracy and difficulty in meeting edge quality standards. This not only reduces product yield but also affects the stability of the production process. Therefore, we propose a carbon fiber prepreg slitting production device. Utility Model Content
[0005] This utility model aims to at least partially solve one of the technical problems in related technologies. Therefore, one objective of this utility model is to provide a carbon fiber prepreg slitting production device that uses an adjusting head and adjusting hole to fix the position of the cutter, providing a reliable and stable fixation, thereby avoiding situations such as cutter displacement during the slitting process of carbon fiber prepreg.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A carbon fiber prepreg slitting production device includes a base, two side plates fixed to the top of the base, and two guide rollers for guiding the movement of carbon fiber prepreg rotatably installed between the two side plates.
[0008] A slitting assembly is provided above the two guide rollers. The slitting assembly includes two symmetrical connecting shafts. A mounting shaft is coaxially fixed between the two connecting shafts. The top of the mounting shaft has multiple adjustment holes, and the front end face of the mounting shaft has a mounting groove.
[0009] Multiple adjustable-level cutter assemblies are installed in the mounting slot. Each cutter assembly includes a fixed base inserted into the mounting slot, a mounting cavity on the rear end face of the fixed base, and a through groove at the top front end of the fixed base, extending through the bottom of the fixed base. A slider is slidably installed inside the mounting cavity, and a guide rod is fixed inside the mounting cavity, passing through the slider and slidably connected to it. A spring is sleeved on the outside of the guide rod to press against the slider. An adjustment head is fixed to the top rear side of the slider, passing through the bottom of the fixed base and engaging with a corresponding adjustment hole to fix the horizontal position of the cutter assembly. A pressure rod is fixed to the top front side of the slider, passing through the through groove and slidably connected to it.
[0010] A connecting seat is fixed to the front end of the fixed base, and a detachable cutter for slitting carbon fiber prepreg is installed at the front end of the connecting seat.
[0011] In addition, the carbon fiber prepreg slitting production apparatus proposed in the application may also have the following additional technical features:
[0012] Specifically, the front end of the connector has a fixing groove, and the front end of the outer wall of the connector is also threaded with a connecting bolt, which passes through the fixing groove; the rear end of the cutter is inserted into the fixing groove, and the connecting bolt passes through the cutter.
[0013] Specifically, a guide rail is fixed to the rear end face of the mounting groove, and a guide groove that is slidably connected to the guide rail is opened at the rear end of the fixing seat.
[0014] Specifically, the upper and lower walls of the mounting groove are fixed with positioning strips, and the upper and lower walls of the fixing seat are provided with positioning grooves that are slidably connected to the positioning strips.
[0015] Specifically, a pressure block is fixed to the top of the pressure rod, and the pressure block is made of rubber.
[0016] Specifically, the connecting seat is inclined and is fixedly connected to the fixed seat by bolts.
[0017] Specifically, the cross-sectional shape of the adjustment hole is circular, and multiple adjustment holes are linearly and equally spaced in the horizontal direction.
[0018] Specifically, a mounting plate is coaxially and tightly welded to the end of the connecting shaft, and the mounting plate is fixedly connected to the side plate by bolts.
[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0020] The slitting assembly is designed such that when adjusting the position of the cutter, pressing down on the pressure rod causes the slider to move downwards along the guide rod, compressing the spring. Simultaneously, the slider drives the adjusting head to disengage from the adjusting hole, pushing the fixed seat horizontally to the desired position. When the pressure rod is released, the adjusting head inserts into the corresponding adjusting hole under the elastic action of the spring. This design not only facilitates adjusting the distance between two adjacent cutters but also secures the cutter position through the insertion and connection of the adjusting head with the adjusting hole, providing a reliable and stable fixation. This avoids cutter displacement during the slitting process of carbon fiber prepreg, thus ensuring the slitting quality of the carbon fiber prepreg. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0022] Figure 2 This is a schematic diagram of the slitting component in this utility model;
[0023] Figure 3 This is a schematic diagram of the structure for mounting the shaft in this utility model;
[0024] Figure 4 This is a schematic diagram of the slitting component in this utility model;
[0025] Figure 5 This is a schematic diagram of the structure of the fixing base in this utility model;
[0026] Figure 6 This is a cross-sectional view of the slitting component in this utility model;
[0027] In the picture:
[0028] 1. Base; 10. Side plate; 11. Guide roller;
[0029] 2. Slitting assembly; 20. Connecting shaft; 200. Mounting plate; 21. Mounting shaft; 210. Adjusting hole; 211. Mounting groove; 212. Guide rail; 213. Positioning strip; 22. Fixing seat; 220. Guide groove; 221. Mounting cavity; 222. Positioning groove; 223. Through groove; 23. Guide rod; 24. Spring; 25. Slider; 26. Adjusting head; 27. Pressure rod; 270. Pressure block; 28. Connecting seat; 280. Fixing groove; 281. Connecting bolt; 29. Cutter. Detailed Implementation
[0030] 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 only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] This embodiment provides a technical solution:
[0032] Please see Figures 1-6 As shown, a carbon fiber prepreg slitting production device includes a base 1. Two side plates 10 are fixed to the top of the base 1, and two guide rollers 11 for guiding the movement of the carbon fiber prepreg are rotatably mounted between the two side plates 10. A slitting assembly 2 is provided above the two guide rollers 11. The slitting assembly 2 includes two symmetrical connecting shafts 20, and a mounting shaft 21 is coaxially fixed between the two connecting shafts 20. The mounting shaft 21 is fixedly connected to the connecting shafts 20 by bolts. Multiple adjustment holes 210 are provided on the top of the mounting shaft 21, and a mounting groove 211 is provided on the front end face of the mounting shaft 211. Multiple adjustable horizontal cutting blade assemblies are installed in the mounting groove 211. Each cutting blade assembly includes a fixing seat 22 inserted into the mounting groove 211. A mounting cavity 221 is provided on the rear end face of the fixing seat 22, and a through groove is provided at the top front end of the fixing seat 22. 223, through groove 223 passes through the bottom of fixed base 22; a slider 25 is slidably installed inside mounting cavity 221, and a guide rod 23 is fixed inside mounting cavity 221. The guide rod 23 passes through slider 25 and is slidably connected to slider 25. A spring 24 for pressing slider 25 is sleeved on the outside of guide rod 23; an adjusting head 26 is fixed on the rear top side of slider 25. The adjusting head 26 passes through the bottom of fixed base 22 and is inserted into the corresponding adjusting hole 210 to fix the horizontal position of the cutter assembly; a pressure rod 27 is fixed on the front top side of slider 25. The pressure rod 27 and adjusting head 26 are fixedly connected to slider 25 by bolts. The pressure rod 27 passes through through groove 223 and is slidably connected to through groove 223; a connecting seat 28 is fixed at the front end of fixed base 22. A detachable cutter 29 for cutting carbon fiber prepreg is installed at the front end of connecting seat 28.
[0033] Furthermore, the front end of the connecting seat 28 has a fixing groove 280, and a connecting bolt 281 is threaded onto the front end of the outer wall of the connecting seat 28, passing through the fixing groove 280; the rear end of the cutter 29 is inserted into the fixing groove 280, and the connecting bolt 281 passes through the cutter 29. This detachable design facilitates quick replacement of the cutter 29 after wear, reduces maintenance costs, and ensures continuous and efficient slitting operations.
[0034] In this embodiment, a guide rail 212 is fixed to the rear end face of the mounting groove 211, and a guide groove 220 is provided at the rear end of the fixing seat 22, which is slidably connected to the guide rail 212. The guide rail 212 and the guide groove 220 are slidably connected, providing precise guidance for the horizontal movement of the fixing seat 22, ensuring that the cutter 29 is stable and reliable when adjusting its position, and improving the cutting accuracy.
[0035] In this embodiment, positioning strips 213 are fixed to both the upper and lower walls of the mounting groove 211, and positioning grooves 222 that slide in connection with the positioning strips 213 are provided on both the upper and lower walls of the fixing seat 22. This design further constrains the fixing seat 22, prevents it from shaking, makes the cutting process more stable, and improves the cutting quality.
[0036] In this embodiment, a pressure block 270 is fixed to the top of the pressure rod 27. The pressure block 270 is made of rubber. When the pressure block 270 is pressed, the rubber material can effectively improve the comfort of use.
[0037] In this embodiment, the connecting seat 28 is inclined and is fixedly connected to the fixing seat 22 by bolts. The inclined connecting seat 28 is connected to the fixing seat 22 by bolts, which changes the force angle of the cutter. When cutting carbon fiber prepreg, it can reduce material resistance, improve cutting efficiency, and extend the service life of the cutter.
[0038] In this embodiment, the cross-sectional shape of the adjustment hole 210 is circular, and the multiple adjustment holes 210 are linearly and equally spaced in the horizontal direction. This design, together with the adjustment head 26, can precisely adjust the horizontal position of the cutter assembly to meet different slitting width requirements and enhance the applicability of the equipment.
[0039] In this embodiment, a mounting plate 200 is coaxially and tightly welded to the end of the connecting shaft 20, and the mounting plate 200 is fixedly connected to the side plate 10 by bolts. This design has the advantage of secure installation, providing stable support for the slitting assembly and ensuring the overall structural stability of the equipment during the slitting process.
[0040] It should be added that the blade of the cutter 29 in this embodiment is made of a special alloy material, and the surface of the blade is treated with a nano-coating. The special alloy material and nano-coating treatment can improve the sharpness, wear resistance and corrosion resistance of the cutter 29, so that the cutter 29 can maintain good cutting performance during long-term slitting operations, reduce the replacement frequency of the cutter 29 and reduce production costs.
[0041] When adjusting the horizontal position of the cutter assembly, the user first presses down on the pressure block 270. The pressure block 270 moves the pressure rod 27 downward, which in turn moves the slider 25 downward. The slider 25 slides along the guide rod 23 and compresses the spring 24. At the same time, the slider 25 moves the adjusting head 26 downward, at which point the adjusting head 26 disengages from the adjusting hole 210. Then, the user pushes the fixing seat 22 horizontally along the mounting groove 211. When the fixing seat 22 reaches the desired position, the user releases the pressure block 270. Under the elastic action of the spring 24, the spring 24 pushes the slider 25 upward. The slider 25 moves the adjusting head 26 upward and inserts it into the adjusting hole 210, thus fixing the fixing seat 22. Repeat the above steps to adjust the position of multiple cutter assemblies in sequence.
[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A carbon fiber prepreg slitting production apparatus, characterized in that: Includes a base (1), with two side plates (10) fixed to the top of the base (1), and two guide rollers (11) rotatably mounted between the two side plates (10) for guiding the movement of carbon fiber prepreg. A slitting assembly (2) is provided above the two guide rollers (11). The slitting assembly (2) includes two symmetrical connecting shafts (20). A mounting shaft (21) is coaxially fixed between the two connecting shafts (20). Multiple adjustment holes (210) are provided on the top of the mounting shaft (21). A mounting groove (211) is provided on the front end face of the mounting shaft (21). Multiple adjustable horizontal cutting blade assemblies are installed in the mounting slot (211). Each cutting blade assembly includes a fixed base (22) inserted into the mounting slot (211). The rear end face of the fixed base (22) has a mounting cavity (221), and the top front end of the fixed base (22) has a through groove (223) that passes through the bottom of the fixed base (22). A slider (25) is slidably installed inside the mounting cavity (221), and a guide rod (23) is fixed inside the mounting cavity (221). The guide rod (23) passes through the bottom of the fixed base (22). The guide rod (23) is fitted with a spring (24) to press against the slider (25); an adjustment head (26) is fixed to the rear top of the slider (25), the adjustment head (26) passes through the bottom of the fixed base (22) and is inserted into the corresponding adjustment hole (210) to fix the horizontal position of the cutter assembly; a pressure rod (27) is fixed to the front top of the slider (25), the pressure rod (27) passes through the through groove (223) and is slidably connected to the through groove (223); The front end of the fixed base (22) is fixed with a connecting base (28), and the front end of the connecting base (28) is equipped with a detachable cutter (29) for cutting carbon fiber prepreg.
2. The carbon fiber prepreg slitting production apparatus according to claim 1, characterized in that: The front end of the connecting seat (28) is provided with a fixing groove (280), and the front end of the outer wall of the connecting seat (28) is also threaded with a connecting bolt (281), which passes through the fixing groove (280); the rear end of the cutter (29) is inserted into the fixing groove (280), and the connecting bolt (281) passes through the cutter (29).
3. The carbon fiber prepreg slitting production apparatus according to claim 1, characterized in that: The rear end face of the mounting groove (211) is fixed with a guide rail (212), and the rear end of the fixing seat (22) is provided with a guide groove (220) that is slidably connected to the guide rail (212).
4. The carbon fiber prepreg slitting production apparatus according to claim 1, characterized in that: The upper and lower walls of the mounting groove (211) are fixed with positioning strips (213), and the upper and lower walls of the fixing seat (22) are provided with positioning grooves (222) that are slidably connected to the positioning strips (213).
5. The carbon fiber prepreg slitting production apparatus according to claim 1, characterized in that: The top of the pressure bar (27) is fixed with a pressure block (270), which is made of rubber.
6. The carbon fiber prepreg slitting production apparatus according to claim 1, characterized in that: The connecting seat (28) is inclined and is fixedly connected to the fixing seat (22) by bolts.
7. The carbon fiber prepreg slitting production apparatus according to claim 1, characterized in that: The cross-sectional shape of the adjustment hole (210) is circular, and the multiple adjustment holes (210) are linearly and equally spaced in the horizontal direction.
8. The carbon fiber prepreg slitting production apparatus according to claim 1, characterized in that: The end of the connecting shaft (20) is coaxially and tightly welded with a mounting plate (200), and the mounting plate (200) is fixedly connected to the side plate (10) by bolts.