A carbon felt treating and flattening device
By designing an adaptively adjustable carbon felt processing and flattening device, the problem of flattening carbon felt with uneven thickness was solved, achieving high-precision flattening and low-loss effects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HERD CARBON MATERIALS (ZHEJIANG) CO LTD
- Filing Date
- 2025-06-18
- Publication Date
- 2026-06-19
AI Technical Summary
Existing carbon felt flattening devices struggle to achieve uniform pressing when dealing with irregularly shaped carbon felts of uneven thickness, leading to cutting errors.
A carbon felt flattening device was designed, which adopts an annular cavity structure composed of an elastic connecting belt and rigid adjusting particles. Combined with the threaded fit of the deformable receiving cavity and the clamping ring, the flattening rod can be adaptively adjusted, and the frictional resistance can be reduced by the ball bearings. The hollow tubular structure reduces the weight.
It achieves high-precision flattening of carbon felt with uneven thickness, reduces friction damage, improves operational convenience and component lifespan, and reduces maintenance costs.
Smart Images

Figure CN224377259U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of carbon felt production technology, and more specifically, it relates to a carbon felt processing and flattening device. Background Technology
[0002] Carbon felt, also known as carbon fiber felt, is a type of nonwoven fabric made from carbon fiber. It is typically produced by forming a web using a dry forming process, followed by bonding processes such as hot rolling, needle punching, and hydroentangling to obtain the finished carbon felt product.
[0003] For example, the cutting machine for cutting carbon felt disclosed in authorization announcement number CN218932683U uses universal ball bearings to flatten the carbon felt, avoiding the contact between the cutter and the raised part of the carbon felt, which would cause the carbon felt to move and result in errors in the cut carbon felt.
[0004] In the above, the universal ball bearings are evenly arranged on the semi-ring. When the thickness of the carbon felt to be pressed is uneven, the pressing effect on the carbon felt cannot be well guaranteed. Utility Model Content
[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a carbon felt processing and flattening device that can be used to press irregularly shaped carbon felts.
[0006] To achieve the above objectives, the present invention provides the following technical solution:
[0007] A carbon felt processing and flattening device includes a rotating tube and a pressure ring. The rotating tube is equipped with a cutter and is adapted to move with a cutting machine. The pressure ring is sleeved on the outer peripheral wall of the rotating tube.
[0008] The pressure ring has an annular cavity inside, and a number of adjustment holes are spaced apart circumferentially on the lower end face of the pressure ring.
[0009] Each adjustment hole in the annular cavity is equipped with a flattening rod, and the top of each flattening rod is connected to the top of the cavity via an elastic connecting strip.
[0010] The circumferential sidewall of the elastic connecting strip is fixedly connected to the inner sidewall of the cavity, and a deformable accommodating cavity is formed between the elastic connecting strip and the top wall of the cavity.
[0011] The deformable cavity is filled with several rigid adjustment particles, which are tightly stacked within the deformable cavity.
[0012] The annular cavity is also equipped with a clamping ring. The two ends of the clamping ring extend to form fan-shaped connecting blocks with external threads. The two fan-shaped connecting blocks are combined to form a threaded mating part, and a locking nut is threadedly connected to the threaded mating part.
[0013] The present invention is further configured such that: the end of the flattening rod extending out of the cavity is provided with a contact portion, the contact portion including a spherical groove formed on the end face of the flattening rod and a ball rotatably embedded in the spherical groove.
[0014] The present invention is further configured such that the flattening rod is hollow inside.
[0015] The present invention is further configured such that the elastic connecting strip is made of rubber material and the wall thickness is gradually varied along the axial direction.
[0016] The present invention is further configured such that: the outer surface of the locking nut is provided with anti-slip texture, the anti-slip texture including V-shaped grooves distributed at intervals along the circumference.
[0017] Compared with the shortcomings of the prior art, the beneficial effects of this utility model are as follows:
[0018] By incorporating an annular cavity structure with elastic connecting bands and adjusting particles, the flattening rods automatically adjust their extension lengths based on the displacement distribution of the adjusting particles when in contact with the carbon felt. This, combined with the spatial deformation of the deformable cavity, achieves an adaptive flattening effect. The threaded engagement structure between the fan-shaped connecting blocks at both ends of the clamping ring and the locking nut simultaneously tightens the movement trajectory of each flattening rod, ensuring the coordinated stability of multiple flattening rods during dynamic adjustment. The movable ball bearings at the ends of the flattening rods effectively reduce frictional resistance when in contact with the carbon felt. The hollow tubular structure of the flattening rods reduces overall weight while maintaining support strength. The axially gradient wall thickness design of the elastic connecting band enhances its deformation recovery performance. The anti-slip texture on the outer surface of the locking nut significantly improves the ease of manual adjustment. The overall structure boasts advantages such as high flattening accuracy, low component wear, and low maintenance costs. Attached Figure Description
[0019] Figure 1 This is a perspective view of an embodiment of the present utility model;
[0020] Figure 2 This is a cross-sectional view of an embodiment of the present utility model;
[0021] Figure 3 This is a schematic diagram of the flattening rod according to an embodiment of the present utility model.
[0022] 1. Rotary tube; 2. Pressure ring; 3. Annular cavity; 4. Flattening rod; 5. Elastic connecting belt; 6. Adjusting particles; 7. Clamping ring; 8. Fan-shaped connecting block; 9. Ball bearings. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.
[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0025] Working principle: In use, the rotating tube 1 is installed on the moving mechanism of the cutting machine. When processing carbon felt of different thicknesses, the undulation of the carbon felt surface causes the ball bearings 9 at the end of the flattening rod 4 to roll and deform, which drives the elastic connecting band 5 to stretch and deform and pushes the adjusting particles 6 to redistribute in the deformable cavity, realizing the adaptive adjustment of the extension length of each flattening rod 4. When it is necessary to fix the flattening parameters, the locking nut is turned so that the threaded mating part formed by the two fan-shaped connecting blocks 8 generates axial pressure, which forces the deformable clamping ring 7 to contract and clamp each flattening rod 4 to keep them in synchronous positioning. The hollow tubular structure of the flattening rod 4 disperses the stress concentration through the internal cavity when under pressure. The gradual wall thickness design of the elastic connecting band 5 provides differentiated elastic recovery force when the adjusting particles 6 move. The anti-slip texture on the surface of the locking nut enhances the friction when manually turning it, and finally forms a carbon felt flattening operation system with multi-directional adaptive adjustment function.
[0026] like Figures 1 to 3 As shown,
[0027] It includes a rotating tube 1 and a pressure ring 2. The rotating tube 1 is equipped with a cutter and is adapted to move with a cutting machine. The pressure ring 2 is sleeved on the outer peripheral wall of the rotating tube 1.
[0028] The pressure ring 2 has an annular cavity 3 inside. Several adjustment holes are spaced apart along the circumference on the lower end face of the pressure ring 2. A flattening rod 4 is provided in the annular cavity 3 corresponding to each adjustment hole. The carbon felt is flattened by the flattening rod 4. The flattening rod 4 is hollow inside. The hollow structure reduces the overall weight while ensuring the support strength.
[0029] Each flattening rod 4 is connected to the top of the cavity via an elastic connecting strip 5. The end of the flattening rod 4 extending out of the cavity is provided with a contact part, which includes a spherical groove on the end face of the flattening rod 4 and a ball 9 rotatably embedded in the spherical groove. The ball 9 effectively reduces the frictional resistance when in contact with the carbon felt and will not damage the surface of the carbon felt.
[0030] The elastic connecting band 5 is fixedly connected to the inner wall of the cavity along its circumferential sidewall. A deformable receiving cavity is formed between the elastic connecting band 5 and the top wall of the cavity. The elastic connecting band 5 is made of rubber material and its wall thickness gradually varies along the axial direction. The elastic connecting band 5 can be stretched and deformed to push the adjusting particles 6 to redistribute within the deformable receiving cavity, thereby achieving adaptive adjustment of the extension length of each flattening rod 4.
[0031] The deformable cavity is filled with several rigid adjustment particles 6, which are tightly stacked in the deformable cavity, and can further limit the position of the adjusted flattening rod 4.
[0032] The annular cavity 3 is also provided with a clamping ring 7. The two ends of the clamping ring 7 extend to form fan-shaped connecting blocks 8 with external threads. The two fan-shaped connecting blocks 8 are combined to form a threaded mating part. The threaded mating part is threadedly connected to a locking nut. Rotating the locking nut causes the threaded mating part formed by the two fan-shaped connecting blocks 8 to generate axial pressure, which forces the deformable clamping ring 7 to contract and clamp each flattening rod 4 to maintain synchronous positioning.
[0033] The outer surface of the locking nut is provided with anti-slip texture, which includes V-shaped grooves spaced apart along the circumference. The anti-slip texture enhances the friction when manually tightening.
[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any ordinary changes and substitutions made by those skilled in the art within the scope of the technical solution of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A carbon felt processing and flattening device, comprising a rotating tube (1) and a pressure ring (2), wherein the rotating tube (1) is equipped with a cutter and adapted to move with a cutting machine, and the pressure ring (2) is sleeved on the outer peripheral wall of the rotating tube (1), characterized in that: The pressure ring (2) has an annular cavity (3) inside, and the lower end face of the pressure ring (2) is provided with a number of adjustment holes spaced apart in the circumferential direction; Inside the annular cavity (3), a flattening rod (4) is provided for each adjustment hole. The top of each flattening rod (4) is connected to the top of the cavity via an elastic connecting strip (5). The circumferential sidewall of the elastic connecting strip (5) is fixedly connected to the inner sidewall of the cavity, and a deformable accommodating cavity is formed between the elastic connecting strip (5) and the top wall of the cavity. The deformable cavity is filled with several rigid adjustment particles (6), and each adjustment particle (6) is tightly stacked in the deformable cavity. A clamping ring (7) is also provided in the annular cavity (3). The two ends of the clamping ring (7) extend to form a fan-shaped connecting block (8) with external threads. The two fan-shaped connecting blocks (8) are combined to form a threaded mating part, and a locking nut is threadedly connected to the threaded mating part.
2. The carbon felt processing and flattening device according to claim 1, characterized in that: The end of the flattening rod (4) extending out of the cavity is provided with a contact part, which includes a spherical groove opened on the end face of the flattening rod (4) and a ball (9) rotatably embedded in the spherical groove.
3. The carbon felt processing and flattening device according to claim 1, characterized in that: The flattening rod (4) is hollow inside.
4. The carbon felt processing and flattening device according to claim 1, characterized in that: The elastic connecting strip (5) is made of rubber material and its wall thickness is gradually varied along the axial direction.
5. The carbon felt processing and flattening device according to claim 1, characterized in that: The outer surface of the locking nut is provided with anti-slip texture, which includes V-shaped grooves spaced apart along the circumference.